Process and rolling mill for stretch reduction of tubes

US4086800A · kind A · utility

Assignee

• Friedrich Kocks GmbH & Company

Inventors

• Werner Demny · Düsseldorf, DE
• Hermann Moltner · Grevenbroich, DE

Key dates

• Filing date: Dec 14, 1976
• Grant date: May 2, 1978
• Expiry date: Dec 14, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B17/14
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A process and mill for stretch reduction rolling of tubes is provided having individually driven roll stands, said roll strands being driven so as to impart a maximum traction force, limited only by the transferability of frictional forces between roll and tube, on the tube in all the passes that grip said tube, at least in the passes at the entry end of the mill.