Device for continuous casting of two strands in parallel

US6332493A · kind A · utility

Assignee

• ABB AB · SE

Inventors

• Magnus Hallefalt · Kvicksund, SE
• Conny Svahn · Visby, SE
• Erik Svensson · Hagfors, SE

Key dates

• Filing date: Oct 18, 1999
• Grant date: Dec 25, 2001
• Expiry date: Oct 18, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D11/115
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A chill mold for the simultaneous casting of two parallel strands and a magnetic brake which generates at least one static or periodic low frequency magnetic field. The chill mold includes a rectangular casting mold and an inner partition which subdivides the rectangular casting mold into two sub-molds, and the magnetic field acts with essentially the same magnetic field direction across the entire width of the rectangular casting mold and has an essentially symmetrical distribution in both sub-molds. The brake includes a first magnet at a first long side of the rectangular casting mold and a second magnet of opposite polarity at the opposite second long side of the rectangular casting mold. The magnetic material in the first and second magnets is distributed such that both magnets have two magnetic sub-poles of the same polarity arranged adjacent to each other along each of the two long-sides of the rectangular casting mold. Each sub-pole is symmetrically arranged along the long-side of the respective sub-mold.