Method of cooling sectional girders

US6059903A · kind A · utility

Assignee

• SMS Schloemann-Siemag Aktiengesellschaft · DE

Inventors

• Wolfgang Roloff · Mönchengladbach, DE
• Lutz Kümmel · Jüchen, DE
• Rolf Stodt · Kaarst, DE
• Heinz-Jürgen Oudehinken · Düsseldorf, DE
• Meinert Meyer · Erkrath, DE
• Hans-Georg Hartung · Pulheim, DE

Key dates

• Filing date: May 9, 1997
• Grant date: May 9, 2000
• Expiry date: May 9, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B1/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

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.