Hot-rolling mill and process for producing sheet metal

US4580428A · kind A · utility

Assignee

• Voest-Alpine · AT

Inventors

• Franz Brettbacher · Linz, AT
• Uwe Langer · Linz, AT

Key dates

• Filing date: Jul 27, 1984
• Grant date: Apr 8, 1986
• Expiry date: Jul 27, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B35/08
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A hot-rolling mill for producing sheet metal has a reversing roughing stand having pairs of roughing rolls and a reversing finishing stand adjacent thereto and having pairs of finishing rolls. Each stand is selectively operable alone and both stands are operable in tandem operation. The roughing rolls have diameters larger than the diameters of the finishing rolls and the finishing rolls operate at a higher rotary speed than the roughing rolls in the tandem operation.