Process and apparatus for the continuous production of a thin metal strip

US7963136B2 · kind B2 · utility

Assignee

• SIEMENS VAI METALS TECHNOLOGIES GMBH · AT

Inventors

• Andreas Flick · Kandel, DE
• Andreas Schweighofer · Linz, AT
• Markus Brummayer · Aschach, AT
• Gerald Hohenbichler · Steyr, AT
• Gerald Eckerstorfer · Linz, AT

Key dates

• Filing date: Sep 20, 2005
• Grant date: Jun 21, 2011
• Expiry date: Jun 16, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49991
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Processes for continuous production of a thin metal strip, in particular a steel hot strip, directly from a metal melt and with a strip cast thickness of <10 mm by the roll-casting process. The cast metal strip is fed for in-line thickness reduction, and then to a storage device. To achieve a high-quality, hot-rolled metal strip with flatness tolerances comparable to those which can currently be achieved in the production of hot-rolled metal strip from continuous-cast thin slabs or slabs, at cast thicknesses of between 40 and 300 mm, in a continuous production process starting directly from metal melt. With the low strip cast thickness, a flatness measurement is performed on the moving metal strip, and the measurement results of this flatness measurement are used to influence the flatness of the metal strip in a targeted way.