Method and device for the continuous casting and direct shaping of a metal strand, in particular a steel cast strand

US7121323B2 · kind B2 · utility

Assignee

• SMS DEMAG LLC · DE

Inventors

• Axel Weyer · Wuppertal, DE
• Dirk Letzel · Ratingen, DE
• Horst Gartner · Neuss, DE
• Wilfried Milewski · Korschenbroich, DE
• Adolf Zajber · Langenfeld, DE

Key dates

• Filing date: Jan 30, 2003
• Grant date: Oct 17, 2006
• Expiry date: Apr 4, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D11/225
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a method and a continuous casting device for the direct shaping of a metal strand, in particular a steel cast strand (1) of any format (1d). According to said method, the cast strand (1) is only cooled by a liquid coolant (4) in longitudinal sections (6), where the interior of the cast strand (1) remains liquefied and the temperature of the cast strand (1) in a transition zone (7) upstream of, in and/or downstream of a bending and straightening unit (8) is evened out by an insulation of the exterior surface (1b), essentially without the use of a liquid coolant (4), and by progressive thermal radiation. The cast strand (1) is shaped in a dynamically variable reduction section (9) as a result of the compressive strength that is measured on individual shaping rolls (10) or roll segments (11), depending on the compressive force that can be locally applied.