This invention relates to a method of and a walking beam furnace for the intermediate heating of pipes, or the like, in hot rolling mills, by means of a furnace located between the plug-mill and the sizing mill. According to the invention, in a forehearth (17) of the intermediate heating furnace, at...http://www.google.de/patents/US4585411?utm_source=gb-gplus-sharePatent US4585411 - Method and walking beam furnace for the intermediate heating of pipes in hot rolling mills
