WO2012062281A1 - Use of a wear-resistant steel component especially as the plow of a construction machine - Google Patents
Use of a wear-resistant steel component especially as the plow of a construction machine Download PDFInfo
- Publication number
- WO2012062281A1 WO2012062281A1 PCT/DE2011/001948 DE2011001948W WO2012062281A1 WO 2012062281 A1 WO2012062281 A1 WO 2012062281A1 DE 2011001948 W DE2011001948 W DE 2011001948W WO 2012062281 A1 WO2012062281 A1 WO 2012062281A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- max
- steel component
- wear
- hot
- press
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 83
- 239000010959 steel Substances 0.000 title claims abstract description 83
- 238000010276 construction Methods 0.000 title claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 238000005065 mining Methods 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 239000011651 chromium Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 239000011572 manganese Substances 0.000 claims description 16
- 239000010936 titanium Substances 0.000 claims description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- 239000011574 phosphorus Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 235000019589 hardness Nutrition 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 8
- 238000004080 punching Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8152—Attachments therefor, e.g. wear resisting parts, cutting edges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/102—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/285—Teeth characterised by the material used
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
Definitions
- the present invention relates to the use of a wear-resistant steel component.
- wear-resistant steels are available on the market in the prior art.
- the wear-resistant steels are used in machines wherever high abrasive wear is to be expected.
- This high abrasive wear finds its origin mainly in the types of wear shock load and fretting.
- surface segments are continuously removed from the steels, so that it comes to such a wear that these machine components must be replaced as soon as they have fallen below a critical level of wear.
- Object of the present invention is therefore to show a way to extend machines and components of machines that are exposed to high abrasive wear in their life and to operate more cost-effectively.
- a hot-formed and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 hardness Brinell (HB), as a steel component in construction machines is particularly preferably used as an excavator bucket, concrete mixer bucket, auger bucket or transport bucket for conveyors. Supplementary use in construction machines, which are exposed to high abrasive wear, are also part of the use of the invention.
- the use according to the invention further provides for the use of a hot-formed and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 HB as a steel component in agricultural machines. Particularly preferred here is a wear-resistant steel component, the use of a plow or a cutting device of harvesters.
- the wear-resistant steel component as Schar, Scharspitze or Scharmesser, Scharblatt, baffle, Scharfuß, holder for share point, chisel, rake crusher, plow or plant, plant wedge, system saver, sole block or Sole log, Sech, mouldboard or Mollblech or coating rail, mouldboard edge or Mollblechkante, insert plate, strip or strip body or scraper or comes to a cutting device of a harvester as a knife or blade used.
- the steel component is used in mining machines, preferably in conveying elements, crushing elements or sorting systems.
- the wear-resistant steel component becomes utility, transportation, clearing or maintenance machinery, preferably in snow removal machines or as a coulter and / or scraper bar in a snowplough or in a snowthrower.
- the wear resistant steel component is used in home, garden, do-it-yourself or craft machinery exposed to high abrasive wear.
- the wear-resistant steel component may be formed in particular as a sliding plate or used as such.
- the wear-resistant steel component can furthermore be designed in particular as an ear lifter or used as such.
- the wear-resistant steel component Even has a hardness greater than or equal to 700 HB.
- the excavator bucket according to the invention in its entirety consists of wear-resistant steel, without weaknesses are produced by joining seams or the like or weak points are compensated by the aftertreatment such that excavator buckets used in the invention have a high durability and resistance to abrasive wear.
- a significant advantage of the use according to the invention is that the manufacturing costs and also the operating costs of the hot-formed and press-hardened, wear-resistant steel components decrease dramatically, since replacement intervals are increased and longevity is increased. With the use according to the invention it is possible to use components with complex component geometries.
- the use according to the invention is further distinguished by the fact that the steel components are at least partially aftertreated, for example by a partial heat treatment.
- the heat treatment By the heat treatment, the possibility is given to post-process the wear-resistant steel component used in accordance with the invention in further steps, without significant limitations of the wear-resistant hardness occurring.
- the heat treatment can be carried out in several stages or steps. A particularly preferred heat treatment is carried out, for example, by heating the steel component to a heating temperature in a range between 500 and 900 degrees, holding the heating temperature for a holding time and then cooling it from the heating temperature in at least one phase.
- An advantage of the aftertreatment according to the invention is that it is possible to produce material properties in a targeted manner in the desired ranges in a process-reliable manner which is suitable for the wear-resistant use of the invention Steel component needed.
- the starting temperature of the warm-up is always lower than the martensite start temperature, preferably the starting temperature is below 200 degrees Celsius.
- a steel alloy is used for their production which has the following alloying elements in each case in percent by weight:
- Ni nickel
- Ni nickel
- the alloying components used in accordance with the invention make the steel alloy particularly suitable for its soft formability and cooling behavior for optionally cold preforming and thermoforming combined with tool hardening while achieving the desired hardnesses for a wear resistant composite material composition.
- the steel component used according to the invention is produced with bending angles of more than 5 degrees.
- steel components used in the invention it is possible to use highly complex geometries such that bending angles of more than 5 degrees, in particular more than 10 or even 15 degrees are present. For example, it is therefore possible to reshape geometries in the form of an excavator bucket or the like into a final state with only one method step, and subsequently to use the manufactured components according to the invention.
- the wear-resistant steel component has a hardness of more than 550 HB.
- the unhardened steel sheet is shaped by the hot forming process and then press-hardened.
- wear-resistant steel components which have a hardness of up to 450 HB, these being designed substantially as a steel plate or planar steel components.
- At least one through opening and / or at least one recess is introduced into the steel component in a punching step by means of at least one punching tool. It is preferred according to a first variant, if the at least one continuous opening and / or the at least one recess during a period of hot forming and / or press hardening is introduced into the still warm or at least not yet completely cooled Stahlbauteit. In the case of this first variant, it is particularly preferred if the at least one hole tool after the punching step is led out of the still warm or at least not yet completely cooled steel component again. According to a second variant, it is preferred if the at least one continuous opening and / or the at least one recess is introduced before hot forming.
- a through aperture and / or at least one recess is or are introduced into the wear-resistant steel component by means of a previously mentioned punching step, it is particularly advantageous if the at least one through opening introduced into the steel component has a chamfer or a face toward the steel component is provided to both surface sides of the steel component out with a chamfer and / or the at least one recess is provided with a chamfer. In this case, it is highly preferred if the chamfering of the at least one continuous opening and / or the at least one recess is carried out during a period of hot working and / or press hardening in the warm or at least not yet fully cooled steel component.
- Fig. 1 is a perspective view of a blade tip of a plow, which is provided with a hole, the hole towards the concave curved surface side, having a chamfer
- the hot-formed and press-hardened, wear-resistant steel component is attached to a Used plow as a share tip 1.
- the share tip 1 has a concave curved surface side 2.
- the punching step is carried out immediately after hot working and before the start of press hardening. This ensures that the hole 3 is introduced into the still warm steel component.
- the hole tool is thereby led out again directly after the punching step from the still warm steel component, thereby avoiding that a shrinkage of the steel component takes place or could take place on the hole tool.
- the steel component is provided with a chamfer 4.
- the chamfering of the hole 3 is carried out after the perforation step has been carried out in the still warm steel component.
Abstract
The present invention relates to the use of a hot-formed and press-hardened wear-resistant steel component with a hardness of between 500 and 700 HB in construction machines, agricultural machines, mining machines, in supply, transport, clearing or maintenance machines or appliances or in household, garden, DIY or handicraft machines or appliances which are subjected to high levels of abrasive wear.
Description
VERWENDUNG EINES VERSCHLEISSFESTEN STAHLBAUTEILS INSBESONDERE ALS PFLUG EINER USE OF A WEAR-RESISTANT STEEL COMPONENT PARTICULARLY AS A PFLUG OF A
BAUMASCHINE CONSTRUCTION MACHINE
Die vorliegende Erfindung betrifft die Verwendung eines verschleißfesten Stahlbauteils. The present invention relates to the use of a wear-resistant steel component.
Im Stand der Technik sind verschiedene verschleißfeste Stähle am Markt verfügbar. Die verschleißfesten Stähle kommen in Maschinen überall dort zum Einsatz, wo mit hohem abrasiven Verschleiß zu rechnen ist. Dieser hohe abrasive Verschleiß findet seine Herkunft hauptsächlich in den Verschleißarten Stoßbelastung und Reibverschleiß. Durch harte Gegenstände, die mit den verschleißfesten Maschinenbauteilen in Kontakt geraten, werden an den Stählen kontinuierlich Oberflächensegmente abgetragen, so dass es zu einem derartigen Verschleiß kommt, dass diese Maschinenbauteile ausgewechselt werden müssen, sobald sie ein kritisches Verschleißniveau unterschritten haben. Various wear-resistant steels are available on the market in the prior art. The wear-resistant steels are used in machines wherever high abrasive wear is to be expected. This high abrasive wear finds its origin mainly in the types of wear shock load and fretting. By hard objects that come into contact with the wear-resistant machine components, surface segments are continuously removed from the steels, so that it comes to such a wear that these machine components must be replaced as soon as they have fallen below a critical level of wear.
Um diesem abrasiv bedingten Verschleiß entgegen zu wirken, gibt es aus dem Stand der Technik bekannte Möglichkeiten, die Maschinenbauteile nach deren Herstellung zu härten. Diese Härtungsmöglichkeiten bestehen z.B. in dem
Aufbringen einer verschleißfesten Oberflächenschicht. Dies ermöglicht zunächst einen Einsatz des verschleißfesten Maschinenbauteils, mit nur geringer Abnutzung. Ist jedoch die Oberflächenschicht selbst durch abrasiven Verschleiß abgenutzt, so wird auch das darunterliegende Maschinenbauteil durch stärkeren Verschleiß in seiner Festigkeit beeinträchtigt. To counteract this abrasion-related wear, there are known from the prior art ways to harden the machine components after their preparation. These curing options exist eg in the Applying a wear-resistant surface layer. This initially allows use of the wear-resistant machine component, with only little wear. However, if the surface layer itself is worn down by abrasive wear, the underlying machine component is affected by increased wear in its strength.
Eine weitere aus dem Stand der Technik bekannte Möglichkeit besteht in dem Einsatz eines verschleißfesten Stahles. Dieser verschleißfeste Stahl hat jedoch nur begrenzte Möglichkeiten, als komplexes Maschinenbauteil ausgebildet zu sein. Eine Umformung oder aber auch ein Nachbearbeiten beispielsweise durch ein spanabhebendes Fertigungsverfahren sind aufgrund der hohen Härte nur bedingt durchführbar. Auch ist ein nachträgliches Bearbeiten relativ kostenintensiv. Another possibility known from the prior art is the use of a wear-resistant steel. However, this wear-resistant steel has limited possibilities to be designed as a complex machine component. A transformation or even a reworking, for example, by a machining production process are due to the high hardness only limited feasible. Also, a subsequent processing is relatively expensive.
Aufgabe der vorliegenden Erfindung ist es daher, eine Möglichkeit aufzuzeigen, Maschinen bzw. Komponenten von Maschinen, die einem hohen abrasiven Verschleiß ausgesetzt sind, in ihrer Lebensdauer zu verlängern und kostengünstiger betreiben zu können. Object of the present invention is therefore to show a way to extend machines and components of machines that are exposed to high abrasive wear in their life and to operate more cost-effectively.
Die zuvor genannte Aufgabe wird durch die Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils gemäß einem der Patentansprüche 1 , 2, 4 und 5 gelöst. The above object is achieved by the use of a hot-formed and press-hardened, wear-resistant steel component according to one of the claims 1, 2, 4 and 5.
Vorteilhafte Ausführungsformen der vorliegenden Erfindung sind Bestandteil der abhängigen Patentansprüche. Advantageous embodiments of the present invention are part of the dependent claims.
Die erfindungsgemäße Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 Härte Brinell (HB), als Stahlbauteil in Baumaschinen, findet besonders bevorzugt Anwendung als Baggerschaufel, Betonmischerschaufel, Förderschneckenschaufel oder aber Transportschaufel für Förderanlagen. Ergänzende Verwendung bei Baumaschinen, die einem hohen abrasivem Verschleiß ausgesetzt sind, sind auch Bestandteil der erfindungsgemäßen Verwendung.
Die erfindungsgemäße Verwendung sieht weiterhin den Einsatz eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB als Stahlbauteil in Agrarmaschinen vor. Besonders bevorzugt findet hier ein verschleißfestes Stahlbauteil die Verwendung an einem Pflug oder aber einer Schneidereinrichtung von Erntemaschinen. Im Falle der Verwendung an einem Pflug ist es dabei besonders vorteilhaft, wenn das verschleißfeste Stahlbauteil als Schar, Scharspitze bzw. Scharmesser, Scharblatt, Leitblech, Scharfuß, Halter für Scharspitze, Meißel, Furchenbrecher, Pflugsohle bzw. Anlage, Anlagenkeil, Anlagenschoner, Sohlenblock bzw. Sohlenklotz, Sech, Streichblech bzw. Mollblech bzw. Streichschiene, Streichblechkante bzw. Mollblechkante, Einlegeblech, Streifen bzw. Streifenkörper oder Abstreifer oder an einer Schneideinrichtung einer Erntemaschine als Messer oder Klinge zum Einsatz gelangt. The use according to the invention of a hot-formed and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 hardness Brinell (HB), as a steel component in construction machines, is particularly preferably used as an excavator bucket, concrete mixer bucket, auger bucket or transport bucket for conveyors. Supplementary use in construction machines, which are exposed to high abrasive wear, are also part of the use of the invention. The use according to the invention further provides for the use of a hot-formed and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 HB as a steel component in agricultural machines. Particularly preferred here is a wear-resistant steel component, the use of a plow or a cutting device of harvesters. In the case of use on a plow, it is particularly advantageous if the wear-resistant steel component as Schar, Scharspitze or Scharmesser, Scharblatt, baffle, Scharfuß, holder for share point, chisel, rake crusher, plow or plant, plant wedge, system saver, sole block or Sole log, Sech, mouldboard or Mollblech or coating rail, mouldboard edge or Mollblechkante, insert plate, strip or strip body or scraper or comes to a cutting device of a harvester as a knife or blade used.
In einer weiteren bevorzugten Verwendungsmöglichkeit eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB wird das Stahlbauteil in Bergbaumaschinen, vorzugsweise bei Förderelementen, Brechelementen oder Sortieranlagen eingesetzt. In a further preferred use possibility of a hot-formed and press-hardened, wear-resistant steel component having a hardness between 500 and 700 HB, the steel component is used in mining machines, preferably in conveying elements, crushing elements or sorting systems.
In einer anderen bevorzugten Verwendungsmöglichkeit eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB wird das verschleißfeste Stahlbauteil in Versorgungs-, Transport-, Räumungs- oder Instandhaltungsmaschinen bzw. - geräten, vorzugsweise in Schneeräumungsmaschinen oder als Schar und/oder Schürfleiste in einem Schneepflug oder in einer Schneefräse, eingesetzt. In another preferred use of a hot-worked and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 HB, the wear-resistant steel component becomes utility, transportation, clearing or maintenance machinery, preferably in snow removal machines or as a coulter and / or scraper bar in a snowplough or in a snowthrower.
In noch einer anderen bevorzugten Verwendungsmöglichkeit eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB wird das verschleißfeste Stahlbauteil in Haus-, Garten-, Heimwerker- oder Handwerksmaschinen bzw. -geraten, die hohem abrasiven Verschleiß ausgesetzt sind, eingesetzt.
In den genannten Baumaschinen, Agrarmaschinen, Bergbaumaschinen oder Versorgungs-, Transport-, Räumungs- oder Instandhaltungsmaschinen bzw. - geraten kann dabei das verschleißfeste Stahlbauteil insbesondere als Gleitplatte ausgebildet sein bzw. als solche verwendet werden. Im Falle einer Erntemaschine kann das verschleißfeste Stahlbauteil weiterhin insbesondere als Ährenheber ausgebildet sein bzw. als solcher verwendet werden. In yet another preferred use of a hot worked and press hardened, wear resistant steel component having a hardness of between 500 and 700 HB, the wear resistant steel component is used in home, garden, do-it-yourself or craft machinery exposed to high abrasive wear. In the mentioned construction machines, agricultural machines, mining machines or supply, transport, clearing or maintenance machines or - advised the wear-resistant steel component may be formed in particular as a sliding plate or used as such. In the case of a harvesting machine, the wear-resistant steel component can furthermore be designed in particular as an ear lifter or used as such.
In Bezug auf die Härte des warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils sei an dieser Stelle erwähnt, dass es auch denkbar und zur Erfindung zu zählen ist, dass das verschleißfeste Stahlbauteil sogar eine Härte aufweist, die größer oder gleich 700 HB ist. With regard to the hardness of the hot-formed and press-hardened, wear-resistant steel component, it should be mentioned at this point that it is also conceivable and to be included in the invention that the wear-resistant steel component even has a hardness greater than or equal to 700 HB.
Durch die erfindungsgemäße Verwendung von warmumgeformten und pressgehärteten Bauteilen ergibt sich insbesondere die Möglichkeit, ein hoch komplexes verschleißfestes Stahlbauteil herzustellen und in einem Bereich zu verwenden, in dem bisher nur die zu Anfang aus dem Stand der Technik bekannten aufgezählten Möglichkeiten zum Einsatz kamen. Insbesondere ergibt sich der Vorteil, dass die verschleißfesten Stahlbauteile als warm um geformte und pressgehärtete Stahlbauteile mit nur wenigen Verfahrensschritten hergestellt werden können. By the use according to the invention of hot-formed and press-hardened components, it is possible, in particular, to produce a highly complex, wear-resistant steel component and to use it in a range in which only the enumerated possibilities known at the beginning from the prior art have hitherto been used. In particular, there is the advantage that the wear-resistant steel components can be produced as hot around molded and press-hardened steel components with only a few process steps.
Im Falle einer Baggerschaufel besteht somit die erfindungsgemäße Baggerschaufel in ihrer Gesamtheit aus verschleißfestem Stahl, ohne dass Schwachstellen durch Fügenähte oder ähnliches erzeugt sind bzw. sind Schwach stellen durch die Nachbehandlung derart ausgeglichen, dass erfindungsgemäß verwendete Baggerschaufeln eine hohe Langlebigkeit und Widerstandsfähigkeit gegen abrasiven Verschleiß aufweisen. Gleiches gilt für Betonmischer, Förderschneckenschaufeln bzw. sonstige Schaufeln in Förderanlagen oder ähnlichen Baumaschinen. Ein wesentlicher Vorteil der erfindungsgemäßen Verwendung ist, dass die Herstellungskosten und auch die Betriebskosten der warm umgeformten und pressgehärteten, verschleißfesten Stahlbauteile immens sinken, da Austauschintervalle vergrößert werden bzw. die Langlebigkeit erhöht wird.
Mit der erfindungsgemäßen Verwendung ist es möglich, Bauteile mit komplexen Bauteilgeometrien einzusetzen. Aufgrund des Warmumform- und Presshärteprozesses ist es insbesondere möglich, mit hoher Produktionsgenauigkeit bei gleichzeitig günstigen Fertigungskosten verschleißfeste Stahlbauteile herzustellen, die aufgrund des Warmumform- und Presshärteprozesses in ihrer Gesamtheit ein verschleißfestes Werkstoffgefüge aufweisen. Insbesondere werden Stahlplatinen mit einer Dicke zwischen 1 und 30 mm derart bearbeitet, dass verschleißfeste Stahlbauteile hergestellt und verwendet werden. Einem Materialabtrag durch abrasiven Verschleiß kann aufgrund des gesamten verschleißfesten Werkstoffgefüges des hergestellten Stahlbauteils gut entgegen gewirkt werden, da nicht nur eine verschleißfeste Oberfläche besteht, sondern das Stahlbauteil in seiner Gesamtheit verschleißfest ausgebildet ist. Hierdurch ergibt sich der Vorteil, dass warmumgeformte und pressgehärtete Stahlbauteile besonders lange im Einsatz verbleiben können, was wiederum eine Kostensenkung des Betriebes von Maschinen mit erfindungsgemäß verwendeten Stahlbauteilen darstellt. In the case of an excavator bucket thus the excavator bucket according to the invention in its entirety consists of wear-resistant steel, without weaknesses are produced by joining seams or the like or weak points are compensated by the aftertreatment such that excavator buckets used in the invention have a high durability and resistance to abrasive wear. The same applies to concrete mixers, screw conveyor blades or other blades in conveyor systems or similar construction machines. A significant advantage of the use according to the invention is that the manufacturing costs and also the operating costs of the hot-formed and press-hardened, wear-resistant steel components decrease immensely, since replacement intervals are increased and longevity is increased. With the use according to the invention it is possible to use components with complex component geometries. Due to the hot forming and press hardening process, it is possible, in particular, to produce wear-resistant steel components with high production precision and at the same time low production costs, which in their entirety have a wear-resistant material structure as a result of the hot-forming and press-hardening process. In particular, steel plates having a thickness of between 1 and 30 mm are machined to produce and use wear-resistant steel components. A material removal by abrasive wear can be counteracted well due to the entire wear-resistant material structure of the steel component produced, since not only a wear-resistant surface, but the steel component is designed to be wear-resistant in its entirety. This has the advantage that hot-formed and press-hardened steel components can remain in use for a particularly long time, which in turn represents a cost reduction in the operation of machines with steel components used according to the invention.
Die erfindungsgemäße Verwendung zeichnet sich weiterhin dadurch aus, dass die Stahlbauteile zumindest partiell nachbehandelt sind, beispielsweise durch ein partielles Wärmebehandeln. Durch das Wärmebehandeln wird die Möglichkeit gegeben, das erfindungsgemäß verwendete verschleißfeste Stahlbauteil in weiteren Schritten nachzubearbeiten, ohne dass wesentliche Einschränkungen der verschleißfesten Härte erfolgen. Die Wärmebehandlung kann in mehreren Stufen oder Schritten durchgeführt werden. Eine besonders bevorzugte Wärmebehandlung erfolgt beispielsweise dadurch, dass das Stahlbauteil auf eine Aufwärmtemperatur in einem Bereich zwischen 500 und 900 Grad aufgewärmt wird, die Aufwärmtemperatur für eine Haltezeit gehalten wird und anschließend von der Aufwärmtemperatur in mindestens einer Phase abgekühlt wird. The use according to the invention is further distinguished by the fact that the steel components are at least partially aftertreated, for example by a partial heat treatment. By the heat treatment, the possibility is given to post-process the wear-resistant steel component used in accordance with the invention in further steps, without significant limitations of the wear-resistant hardness occurring. The heat treatment can be carried out in several stages or steps. A particularly preferred heat treatment is carried out, for example, by heating the steel component to a heating temperature in a range between 500 and 900 degrees, holding the heating temperature for a holding time and then cooling it from the heating temperature in at least one phase.
Als Vorteil der erfindungsgemäßen Nachbehandlung ergibt sich, dass gezielt in den gewünschten Bereichen Werkstoffeigenschaften prozesssicher herstellbar sind, die für eine erfindungsgemäße Verwendung des verschleißfesten
Stahlbauteils benötigt werden. Die Starttemperatur der Aufwärmung ist immer kleiner als die Martensit Starttemperatur, vorzugsweise liegt die Starttemperatur unterhalb von 200 Grad Celsius. An advantage of the aftertreatment according to the invention is that it is possible to produce material properties in a targeted manner in the desired ranges in a process-reliable manner which is suitable for the wear-resistant use of the invention Steel component needed. The starting temperature of the warm-up is always lower than the martensite start temperature, preferably the starting temperature is below 200 degrees Celsius.
In einer weiteren vorteilhaften Ausführungsvariante der erfindungsgemäß verwendeten Stahlbauteile wird zu deren Herstellung eine Stahllegierung verwendet, die folgende Legierungselemente jeweils in Gewichtsprozent aufweist: In a further advantageous embodiment variant of the steel components used according to the invention, a steel alloy is used for their production which has the following alloying elements in each case in percent by weight:
0,2 bis 0,4 % Kohlenstoff (C) 0.2 to 0.4% carbon (C)
0,3 bis 0,8 % Silizium <Si) 0.3 to 0.8% silicon <Si)
1 ,0 bis 2,5 % Mangan (Mn) 1, 0 to 2.5% manganese (Mn)
max. 0,02 % Phosphor (P) Max. 0.02% phosphorus (P)
max. 0,02 % Schwefel (S) Max. 0.02% sulfur (S)
max. 0,05 & Aluminium (AI) Max. 0.05 & aluminum (AI)
max. 2 % Kupfer (Cu) Max. 2% copper (Cu)
0,1 bis 0,5 % Chrom (Cr) 0.1 to 0.5% chromium (Cr)
max. 2 % Nickel (Ni) Max. 2% nickel (Ni)
0,1 bis 1 % Molybdän (Mo) 0.1 to 1% molybdenum (Mo)
0,001 bis 0,01 % Bor (B) 0.001 to 0.01% boron (B)
0,01 bis 1 % Wolfram (W) 0.01 to 1% Tungsten (W)
max. 0,05 % Stickstoff (N) Max. 0.05% nitrogen (N)
oder or
0,35 bis 0,55 % Kohlenstoff (C) 0.35 to 0.55% carbon (C)
0,1 bis 2,5 % Silizium (Si) 0.1 to 2.5% silicon (Si)
0,3 bis 2,5 % Mangan (Mn) 0.3 to 2.5% manganese (Mn)
max. 0,05 % Phosphor (P) Max. 0.05% phosphorus (P)
max. 0,01 % Schwefel (S) Max. 0.01% sulfur (S)
max. 0,08 % Aluminium (AI) Max. 0.08% aluminum (AI)
max. 0,5 % Kupfer (Cu) Max. 0.5% copper (Cu)
0,1 bis 2,0 % Chrom (Cr) 0.1 to 2.0% chromium (Cr)
max. 3,0 % Nickel (Ni) Max. 3.0% nickel (Ni)
max. 1 ,0 % Molybdän (Mo) Max. 1, 0% molybdenum (Mo)
max. 2,0 % Kobalt (Co) Max. 2.0% cobalt (Co)
0,001 bis 0,005 % Bor (B) 0.001 to 0.005% boron (B)
0,01 bis 0,08 % Niob (Nb) 0.01 to 0.08% niobium (Nb)
max. 0,4 % Vanadium (V) Max. 0.4% vanadium (V)
max. 0,02 % Stickstoff (N) Max. 0.02% nitrogen (N)
max. 0,2 % Titan (Ti) Max. 0.2% titanium (Ti)
oder or
0,40 bis 0,44 % Kohlenstoff (C)
0,1 bis 0,5 % Silizium (Si) 0.40 to 0.44% carbon (C) 0.1 to 0.5% silicon (Si)
0,5 bis 1 ,2 % Mangan (Mn) 0.5 to 1.2% manganese (Mn)
max. 0,02 % Phosphor (P) Max. 0.02% phosphorus (P)
max. 0,005 % Schwefel (S) Max. 0.005% sulfur (S)
max. 0,05 % Aluminium (AI) Max. 0.05% aluminum (AI)
max. 0,2 % Kupfer (Cu) Max. 0.2% copper (Cu)
0,3 bis 0,8 % Chrom (Cr) 0.3 to 0.8% chromium (Cr)
,0 bis 2,5 % Nickel (Ni) , 0 to 2.5% nickel (Ni)
0,2 bis 0,6 % Molybdän (Mo) 0.2 to 0.6% molybdenum (Mo)
0,5 bis 2,0 % Kobalt (Co) 0.5 to 2.0% cobalt (Co)
0,0015 bis 0,005 % Bor (B) 0.0015 to 0.005% boron (B)
0,02 bis 0,05 % Niob (Nb) 0.02 to 0.05% niobium (Nb)
max. 0,4 % Vanadium (V) Max. 0.4% vanadium (V)
max. 0,015 % Stickstoff (N) Max. 0.015% nitrogen (N)
0,01 bis 0,05 % Titan (Ti) 0.01 to 0.05% titanium (Ti)
oder or
0,42 bis 0,45 % Kohlenstoff (C) 0.42 to 0.45% carbon (C)
0,30 bis 0,40 % Silizium (Si) 0.30 to 0.40% silicon (Si)
0,80 bis 0,90 % Mangan (Mn) 0.80 to 0.90% manganese (Mn)
max. 0,012 % Phosphor (P) Max. 0.012% phosphorus (P)
max. 0,001 % Schwefel (S) Max. 0.001% sulfur (S)
0,020 bis 0,050 % Aluminium (AI) 0.020 to 0.050% aluminum (AI)
max. 0,10 % Kupfer (Cu) Max. 0.10% copper (Cu)
0,50 bis 0,60 % Chrom (Cr) 0.50 to 0.60% chromium (Cr)
2,00 bis 2,20 % Nickel (Ni) 2.00 to 2.20% nickel (Ni)
0,45 bis 0,59 % Molybdän (Mo) 0.45 to 0.59% molybdenum (Mo)
0,90 bis 1 ,10 % Kobalt (Co) 0.90 to 1, 10% cobalt (Co)
0,002 bis 0,004 % Bor (B) 0.002 to 0.004% boron (B)
max. 0,008 % Stickstoff (N) Max. 0.008% nitrogen (N)
0,015 bis 0,025 % Titan (Ti) 0.015 to 0.025% titanium (Ti)
max. 0,030 % Zinn (Sn). Max. 0.030% tin (Sn).
Durch die erfindungsgemäß verwendeten Legierungsbestandteile eignet sich die Stahllegierung besonders durch ihre Formbarkeit im weichen Zustand und das Abkühlverhalten für ein gegebenenfalls kaltes Vorformen sowie für einen Warmformvorgang, verbunden mit einer Härtung im Werkzeug, und erreicht zugleich die für eine verschleißfeste Werkstoffgefügezusammensetzung erwünschten Härten. The alloying components used in accordance with the invention make the steel alloy particularly suitable for its soft formability and cooling behavior for optionally cold preforming and thermoforming combined with tool hardening while achieving the desired hardnesses for a wear resistant composite material composition.
In einer weiteren bevorzugten Ausführungsvariante wird das erfindungsgemäß verwendete Stahlbauteil mit Biegewinkeln von mehr als 5 Grad hergestellt.
Hierdurch ist es insbesondere möglich, komplexe Geometrien von verschleißfesten Stahlbauteilen einzusetzen. Aus dem Stand der Technik sind bis dato nur verschleißfeste Stahlbauteile mit stumpfen Biegewinkeln, also Biegewinkeln von deutlich unter 5 Grad herstellbar, da die Stahlbauteile aufgrund ihrer hohen verschleißfest bedingten Härte nur in geringem Maße umformbar sind. Durch erfindungsgemäß verwendete Stahlbauteile besteht die Möglichkeit, hochkomplexe Geometrien derart einzusetzen, dass Biegewinkel von mehr als 5 Grad, insbesondere von mehr als 10 oder aber auch 15 Grad vorhanden sind. Beispielsweise besteht somit die Möglichkeit, Geometrien in Form einer Baggerschaufel oder ähnlichem mit nur einem Verfahrensschritt in einen Endzustand umzuformen und im Anschluss daran die hergestellten Bauteile erfindungsgemäß zu verwenden. In a further preferred embodiment, the steel component used according to the invention is produced with bending angles of more than 5 degrees. This makes it possible in particular to use complex geometries of wear-resistant steel components. From the state of the art to date only wear-resistant steel components with blunt bending angles, ie bending angles of well below 5 degrees produced because the steel components are due to their high wear-resistant hardness only to a small extent deformable. By steel components used in the invention, it is possible to use highly complex geometries such that bending angles of more than 5 degrees, in particular more than 10 or even 15 degrees are present. For example, it is therefore possible to reshape geometries in the form of an excavator bucket or the like into a final state with only one method step, and subsequently to use the manufactured components according to the invention.
In einer weiteren bevorzugten Ausführungsvariante der erfindungsgemäßen Verwendung weist das verschleißfeste Stahlbauteil eine Härte von mehr als 550 HB auf. Hierbei ist es erfindungsgemäß wesentlich, dass das ungehärtete Stahlblech mit dem Warm umform verfahren umgeformt und anschließend pressgehärtet wird. Aus dem Stand der Technik sind bis dato nur verschleißfeste Stahlbauteüe bekannt, die eine Härte bis zu 450 HB aufweisen, wobei diese im Wesentlichen als Stahlplatine bzw. ebene Stahlbauteile ausgebildet sind. Hier wird insbesondere durch die erfindungsgemäße Verwendung die Möglichkeit gegeben, komplexe Stahlbauteilgeometrien mit höheren Härtegraden zum Einsatz zu bringen. In a further preferred embodiment of the use according to the invention, the wear-resistant steel component has a hardness of more than 550 HB. In this case, it is essential according to the invention that the unhardened steel sheet is shaped by the hot forming process and then press-hardened. From the state of the art to date only wear-resistant steel components are known which have a hardness of up to 450 HB, these being designed substantially as a steel plate or planar steel components. Here, in particular by the use according to the invention, it is possible to use complex steel component geometries with higher degrees of hardness.
Es ist vorteilhaft, wenn in das Stahlbauteil in einem Lochungsschritt mittels zumindest eines Lochwerkzeugs zumindest ein durchgehender Durchbruch und/oder zumindest eine Ausnehmung eingebracht wird. Dabei ist es gemäß einer ersten Variante bevorzugt, wenn der zumindest eine durchgehende Durchbruch und/oder die zumindest eine Ausnehmung während eines Zeitabschnittes des Warmumformens und/oder Presshärtens in das noch warme oder zumindest noch nicht vollständig abgekühlte Stahlbauteit eingebracht wird bzw. werden. Im Falle dieser ersten Variante ist es besonders bevorzugt, wenn das zumindest eine Lochwerkzeug nach dem Lochungsschritt
aus dem noch warmen oder zumindest noch nicht vollständig abgekühlten Stahlbauteil wieder herausgeführt wird. Gemäß einer zweiten Variante ist es bevorzugt, wenn der zumindest eine durchgehende Durchbruch und/oder die zumindest eine Ausnehmung vor dem Warm umformen eingebracht wird bzw. werden. It is advantageous if at least one through opening and / or at least one recess is introduced into the steel component in a punching step by means of at least one punching tool. It is preferred according to a first variant, if the at least one continuous opening and / or the at least one recess during a period of hot forming and / or press hardening is introduced into the still warm or at least not yet completely cooled Stahlbauteit. In the case of this first variant, it is particularly preferred if the at least one hole tool after the punching step is led out of the still warm or at least not yet completely cooled steel component again. According to a second variant, it is preferred if the at least one continuous opening and / or the at least one recess is introduced before hot forming.
Sofern in das verschleißfeste Stahlbauteil durch einen zuvor genannten Lochungsschritt ein durchgehender Durchbruch und/oder zumindest eine Ausnehmung eingebracht wird bzw. werden, ist es besonders vorteilhaft, wenn der in das Stahlbauteil eingebrachte zumindest eine durchgehende Durchbruch zu einer Flächenseite des Stahlbauteils hin mit einer Fase oder zu beiden Flächenseiten des Stahlbauteils hin mit jeweils einer Fase versehen wird und/oder die zumindest eine Ausnehmung mit einer Fase versehen wird. In diesem Fall ist es äußerst bevorzugt, wenn die Anfasung des zumindest einen durchgehenden Durchbruchs und/oder der zumindest einen Ausnehmung während eines Zeitabschnittes des Warmumformens und/oder Presshärtens in das warme oder zumindest noch nicht vollständig abgekühlte Stahlbauteil durchgeführt wird. If a through aperture and / or at least one recess is or are introduced into the wear-resistant steel component by means of a previously mentioned punching step, it is particularly advantageous if the at least one through opening introduced into the steel component has a chamfer or a face toward the steel component is provided to both surface sides of the steel component out with a chamfer and / or the at least one recess is provided with a chamfer. In this case, it is highly preferred if the chamfering of the at least one continuous opening and / or the at least one recess is carried out during a period of hot working and / or press hardening in the warm or at least not yet fully cooled steel component.
Nachfolgend wird die Erfindung in einer konkreten Ausführungsform anhand einer Zeichnung erläutert. Dabei ergeben sich aus der Beschreibung der Ausführungsform weitere Ziele, Vorteile, Merkmale und/oder Anwendungsmöglichkeiten der vorliegenden Erfindung. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand der vorliegenden Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung. Dabei zeigt die Figur: The invention will be explained in a concrete embodiment with reference to a drawing. In this case, from the description of the embodiment further goals, advantages, features and / or applications of the present invention. All described and / or illustrated features alone or in any combination form the subject matter of the present invention, also independent of their summary in the claims or their dependency. The figure shows:
Fig. 1 Eine perspektivische Ansicht einer Scharspitze eines Pfluges, die mit einem Loch versehen ist, wobei das Loch zur konkav gebogenen Flächenseite hin, ein Fase aufweist Fig. 1 is a perspective view of a blade tip of a plow, which is provided with a hole, the hole towards the concave curved surface side, having a chamfer
Im Falle der dargestellten Ausführungsvariante der Erfindung wird das warmumgeformte und pressgehärtete, verschleißfeste Stahlbauteil an einem
Pflug als eine Scharspitze 1 verwendet. Die Scharspitze 1 weist eine konkav gebogene Flächenseite 2 auf. Durch die Scharspitze 1 hindurch verläuft das Loch 3, wobei das Loch 3 in einem Lochungsschritt mittels zumindest eines Lochwerkzeugs eingebracht worden ist. Der Lochungsschritt wird unmittelbar nach dem Warmumformen und noch vor Beginn des Presshärtens durchgeführt. Somit wird erreicht, dass das Loch 3 in das noch warme Stahlbauteil eingebracht wird. Das Lochwerkzeug wird dabei nach dem Lochungsschritt unmittelbar aus dem noch warmen Stahlbauteil wieder herausgeführt, wodurch vermieden wird, dass eine Aufschrumpfung des Stahlbauteils auf dem Lochwerkzeug erfolgt bzw. erfolgen könnte. In the case of the illustrated embodiment of the invention, the hot-formed and press-hardened, wear-resistant steel component is attached to a Used plow as a share tip 1. The share tip 1 has a concave curved surface side 2. Through the blade tip 1 passes through the hole 3, wherein the hole 3 has been introduced in a punching step by means of at least one punching tool. The punching step is carried out immediately after hot working and before the start of press hardening. This ensures that the hole 3 is introduced into the still warm steel component. The hole tool is thereby led out again directly after the punching step from the still warm steel component, thereby avoiding that a shrinkage of the steel component takes place or could take place on the hole tool.
Zur konkav gebogenen Flächenseite 2 des Stahlbauteils hin wird das Stahlbauteil mit einer Fase 4 versehen. Dabei wird die Anfasung des Loches 3 nach der Durchführung des Lochungsschrittes in das noch warme Stahlbauteil durchgeführt.
Concerning the concave curved surface side 2 of the steel component, the steel component is provided with a chamfer 4. The chamfering of the hole 3 is carried out after the perforation step has been carried out in the still warm steel component.
Bezuqszeichenliste: LIST OF REFERENCES:
1 - Scharspitze 1 - Scharspitze
2 - konkav gebogene Flächenseite 2 - concave curved surface side
3 - Loch 3 hole
4 - Fase
4 - bevel
Claims
1. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB als Stahlbauteil in Baumaschinen, vorzugsweise als Baggerschaufel, Betonmischschaufel, Förderschneckenschaufel, Transportschaufel für Förderanlagen. 1. Use of a hot-formed and press-hardened, wear-resistant steel component with a hardness between 500 and 700 HB as a steel component in construction machines, preferably as an excavator bucket, concrete mixing bucket, auger bucket, transport bucket for conveyors.
2. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB als Stahlbauteil in Agrarmaschinen, vorzugsweise an einem Pflug oder an Schneideinrichtungen von Erntemaschinen. 2. Use of a hot-formed and press-hardened, wear-resistant steel component having a hardness of between 500 and 700 HB as a steel component in agricultural machines, preferably on a plow or on cutting devices of harvesting machines.
3. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils nach Anspruch 2, d ad u rch geken nzei c h net , dass es an einem Pflug als Schar, Scharspitze bzw. Scharmesser, Scharblatt, Leitblech, Scharfuß, Halter für Scharspitze, Meißel, Furchenbrecher, Pflugsohle bzw. Anlage, Anlagenkeil, Anlagenschoner, Sohlenblock bzw. Sohlenklotz, Sech, Streichblech bzw. Mollblech bzw. Streichschiene, Streich blechkante bzw. Mollblechkante, Einlegeblech, Streifen bzw. Streifenkörper oder Abstreifer oder an einer Schneideinrichtung einer Erntemaschine als Messer oder Klinge verwendet wird. 3. Use of a hot-formed and press-hardened, wear-resistant steel component according to claim 2, characterized in that it is attached to a plow as a share, Scharspitze or Scharmesser, Scharblatt, baffle, Scharfuß, holder for share point, chisel, furrow crusher, Pflugsohle or plant, plant wedge, plant saver, Sohlenblock or Sohlenklotz, Sech, mouldboard or Mollblech or coating rail, Streich sheet edge or Mollblechkante, insert plate, strip or strip body or scraper or is used on a cutting device of a harvester as a knife or blade ,
4. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB als Stahlbauteil in Bergbaumaschinen, vorzugsweise bei Fördererkomponenten, Brecherkomponenten oder Sortieranlagen. 4. Use of a hot-formed and press-hardened, wear-resistant steel component having a hardness between 500 and 700 HB as a steel component in mining machines, preferably in conveyor components, crusher components or sorting systems.
5. Verwendung eines warm umgeformten und pressgehärteten, verschleißfesten Stahlbauteils mit einer Härte zwischen 500 und 700 HB als Stahlbauteil in Versorgungs-, Transport-, Räumungs- oder Instandhaltungsmaschinen bzw. -geraten, vorzugsweise in Schneeräumungsmaschinen oder als Schar und/oder Schürfleiste in einem Schneepflug oder in einer Schneefräse, oder in Haus-, Garten-, Heimwerker- oder Handwerksmaschinen bzw. -geraten, die hohem abrasiven Verschleiß ausgesetzt sind. 5. Use of a hot formed and press-hardened, wear-resistant steel component with a hardness between 500 and 700 HB as a steel component in supply, transport, evacuation or Maintenance machinery, preferably in snow removal machines or as a coulter and / or scraper in a snow plow or in a snowthrower, or in home, garden, do-it-yourself or craft machinery exposed to high abrasive wear.
6. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Stahlbauteil zumindest partiell wärmebehandelt ist. 6. Use of a hot-formed and press-hardened, wear-resistant steel component according to one of claims 1 to 5, characterized in that the steel component is at least partially heat treated.
7. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Stahlbauteil aus einer Legierung mit folgenden Bestandteilen ausgedrückt in Gewichtsprozent: 7. Use of a hot-formed and press-hardened, wear-resistant steel component according to one of claims 1 to 6, characterized in that the steel component of an alloy with the following constituents expressed in weight percent:
0,2 bis 0,4 % Kohlenstoff (C) 0.2 to 0.4% carbon (C)
0,3 bis 0,8 % Silizium (Si) 0.3 to 0.8% silicon (Si)
1,0 bis 2,5% Mangan (Mn) 1.0 to 2.5% manganese (Mn)
max.0,02 % Phosphor (P) max.0.02% phosphorus (P)
max.0,02 % Schwefel (S) max.0,02% sulfur (S)
max.0,05 % Aluminium (AI) max.0,05% aluminum (AI)
max.2 % Kupfer (Cu) max.2% copper (Cu)
0,1 bis 0,5 % Chrom (Cr) 0.1 to 0.5% chromium (Cr)
max.2 % Nickel (Ni) max.2% nickel (Ni)
0,1 bis 1 % Molybdän (Mo) 0.1 to 1% molybdenum (Mo)
0,001 bis 0,01 % Bor (B) 0.001 to 0.01% boron (B)
0,01 bis 1 % Wolfram (W) 0.01 to 1% Tungsten (W)
max.0,05 % Stickstoff (N) max.0,05% nitrogen (N)
oder or
0,35 bis 0,55 % Kohlenstoff (C) 0.35 to 0.55% carbon (C)
0,1 bis 2,5 % Silizium (Si) 0.1 to 2.5% silicon (Si)
0,3 bis 2,5 % Mangan (Mn) 0.3 to 2.5% manganese (Mn)
max.0,05 % Phosphor (P) max.0,05% phosphorus (P)
max.0,01 % Schwefel (S) max.0.01% sulfur (S)
max.0,08 % Aluminium (AI) max.0,08% aluminum (AI)
max.0,5 % Kupfer (Cu) max.0.5% copper (Cu)
0,1 bis 2,0 % Chrom (Cr) 0.1 to 2.0% chromium (Cr)
max.3,0 % Nickel (Ni) max. 1 ,0 % Molybdän (Mo) max.3,0% nickel (Ni) Max. 1, 0% molybdenum (Mo)
max. 2,0 % Kobalt (Co) Max. 2.0% cobalt (Co)
0,001 bis 0,005 % Bor (B) 0.001 to 0.005% boron (B)
0,01 bis 0,08 % Niob (Nb) 0.01 to 0.08% niobium (Nb)
max. 0,4 % Vanadium (V) Max. 0.4% vanadium (V)
max. 0,02 % Stickstoff (N) Max. 0.02% nitrogen (N)
max. 0,2 % Titan (Ti) oder Max. 0.2% titanium (Ti) or
0,40 bis 0,44 % Kohlenstoff (C) 0.40 to 0.44% carbon (C)
0,1 bis 0,5 % Silizium (Si) 0.1 to 0.5% silicon (Si)
0,5 bis 1 ,2 % Mangan (Mn) 0.5 to 1.2% manganese (Mn)
max. 0,02 % Phosphor (P) Max. 0.02% phosphorus (P)
max. 0,005 % Schwefel (S) Max. 0.005% sulfur (S)
max. 0,05 % Aluminium (AI) Max. 0.05% aluminum (AI)
max. 0,2 % Kupfer (Cu) Max. 0.2% copper (Cu)
0,3 bis 0,8 % Chrom (Cr) 0.3 to 0.8% chromium (Cr)
1 ,0 bis 2,5 % Nickel (Ni) 1, 0 to 2.5% nickel (Ni)
0,2 bis 0,6 % Molybdän (Mo) 0.2 to 0.6% molybdenum (Mo)
0,5 bis 2,0 % Kobalt (Co) 0.5 to 2.0% cobalt (Co)
0,0015 bis 0,005 % Bor (B) 0.0015 to 0.005% boron (B)
0,02 bis 0,05 % Niob (Nb) 0.02 to 0.05% niobium (Nb)
max. 0,4 % Vanadium (V) Max. 0.4% vanadium (V)
max. 0,015 % Stickstoff (N) Max. 0.015% nitrogen (N)
0,01 bis 0,05 % Titan (Ti) 0.01 to 0.05% titanium (Ti)
oder or
0,42 bis 0,45 % Kohlenstoff (C) 0.42 to 0.45% carbon (C)
0,30 bis 0,40 % Silizium (Si) 0.30 to 0.40% silicon (Si)
0,80 bis 0,90 % Mangan (Mn) 0.80 to 0.90% manganese (Mn)
max. 0,012 % Phosphor (P) Max. 0.012% phosphorus (P)
max. 0,001 % Schwefel (S) Max. 0.001% sulfur (S)
0,020 bis 0,050 % Aluminium (AI) 0.020 to 0.050% aluminum (AI)
max. 0, 10 % Kupfer (Cu) Max. 0, 10% copper (Cu)
0,50 bis 0,60 % Chrom (Cr) 0.50 to 0.60% chromium (Cr)
2,00 bis 2,20 % Nickel (Ni) 2.00 to 2.20% nickel (Ni)
0,45 bis 0,59 % Molybdän (Mo) 0.45 to 0.59% molybdenum (Mo)
0,90 bis 1 , 10 % Kobalt (Co) 0.90 to 1, 10% cobalt (Co)
0,002 bis 0,004 % Bor (B) 0.002 to 0.004% boron (B)
max. 0,008 % Stickstoff (N) Max. 0.008% nitrogen (N)
0,015 bis 0,025 % Titan (Ti) 0.015 to 0.025% titanium (Ti)
max. 0,030 % Zinn (Sn) Max. 0.030% tin (Sn)
besteht. consists.
8. Verwendung eines warm umgeformten und pressgehärteten, verschleißfesten Stahlbauteils nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Stahlbauteil Biegewinkel von mehr als 5° aufweist. 8. Use of a hot-formed and press-hardened, wear-resistant steel component according to one of claims 1 to 7, characterized in that the steel component has bending angles of more than 5 °.
9. Verwendung eines warmumgeformten und pressgehärteten, verschleißfesten Stahlbauteils nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Stahlbauteil eine Härte von mehr als 550 HB aufweist. 9. Use of a hot-formed and press-hardened, wear-resistant steel component according to one of claims 1 to 8, characterized in that the steel component has a hardness of more than 550 HB.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11818988.5A EP2646626A1 (en) | 2010-11-08 | 2011-11-08 | Use of a wear-resistant steel component especially as the plow of a construction machine |
US14/000,061 US20140127074A1 (en) | 2010-11-08 | 2011-11-08 | Use of a wear-resistant steel component especially as the plow of a construction machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102010050499.8 | 2010-11-08 | ||
DE102010050499A DE102010050499B3 (en) | 2010-11-08 | 2010-11-08 | Use of a wear-resistant steel component |
Publications (1)
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WO2012062281A1 true WO2012062281A1 (en) | 2012-05-18 |
Family
ID=45403160
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PCT/DE2011/001948 WO2012062281A1 (en) | 2010-11-08 | 2011-11-08 | Use of a wear-resistant steel component especially as the plow of a construction machine |
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US (1) | US20140127074A1 (en) |
EP (1) | EP2646626A1 (en) |
DE (1) | DE102010050499B3 (en) |
WO (1) | WO2012062281A1 (en) |
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CN103014515A (en) * | 2012-12-01 | 2013-04-03 | 滁州恒昌机械制造有限公司 | High-toughness abrasion-resistant alloy steel for excavator bucket and production process thereof |
DE102013110902B3 (en) * | 2013-10-01 | 2014-12-04 | Benteler Defense Gmbh & Co. Kg | Method for producing a wear-resistant component with increased vibration resistance in the connection area |
DE102013113119A1 (en) * | 2013-10-01 | 2015-04-02 | Benteler Automobiltechnik Gmbh | Process for producing a steel component with partially different properties and chamber furnace |
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Also Published As
Publication number | Publication date |
---|---|
EP2646626A1 (en) | 2013-10-09 |
US20140127074A1 (en) | 2014-05-08 |
DE102010050499B3 (en) | 2012-01-19 |
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