Method of cooling sectional girders
AssigneeSMS Schloemann-Siemag Aktiengesellschaft
InventorsWolfgang Roloff, Lutz Kummel, Rolf Stodt, Heinz-Jurgen Oudehinken, Meinert Meyer, Hans-Georg Hartung
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Abstract
A method of cooling section steel, particularly sectional steel girders, from rolling heat, wherein, prior to a final air cooling, a water cooling process is carried out in such a way that section steel portions with material concentrations are cooled at outwardly projecting portions of the steel sections over a width of application and a duration of application which are variable and subject to a predetermined cooling strategy supported by a process computer to a value which is at least still slightly above the transformation temperature Ar1.
Claims5
A method of cooling section steel from rolling heat, the method comprising carrying out a water cooling procedure for cooling steel section portions having increased material widths at outwardly projecting portions thereof to a value which is at least slightly above the transformation temperature Ar1, whereby a cooling supply is imparted to the steel section portions, wherein the steel section portions are subjected to a width of application and a duration of application of water cooling which are variable and subject to a cooling strategy supported by a process computer, and carrying out cooling of the section steel in air to room temperature until the cooled steel section portions have used up the cooling supply and have thermally regenerated.
Dependencies are inferred from the claim text.