Method of and apparatus for manufacturing hot rolled steel strips, in particular from strip-shaped continuously cast primary material

US6149740A · kind A · utility

Assignee

• SMS Schloemann-Siemag Aktiengesellschaft · DE

Inventors

• Wilfried Bald · Hilchenbach, DE
• Dieter Rosenthal · Niederfischbach, DE

Key dates

• Filing date: Apr 13, 1998
• Grant date: Nov 21, 2000
• Expiry date: Apr 13, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B2201/04
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method of and apparatus for manufacturing hot-rolled steel strips from a continuously cast primary material, preferably thin slabs, in a plurality of successive steps in a continuous operation is disclosed. In the invention, thin slabs, which leave an equalizing furnace, are heated above the maximum temperature that can be achieved in the equalizing furnace and are thereafter are broken down in a break-down train, with the broken-down thin slabs being subsequently recrystallized and cooled down to a rolling temperature before being finish-rolled in the finishing train.