Patent · US Expired

System for stirring in continuous casting

US4541472A · kind A · utility

3Cited by

1References

4Claims

0Family size

Assignee

Asea Aktiebolag · SE

Inventors

Jan-Erik Eriksson · Visby, SE
Mats Karlsson · Vålberg, SE
Sten Kollberg · Västerås, SE
Bengt Mansson · Helsingborg, SE

Key dates

Filing date	Sep 7, 1983
Grant date	Sep 17, 1985
Priority date	—
Expiry date	Sep 7, 2003

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D11/1246
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A system for stirring in continuous casting is formed by an inductive stirrer which inductively stirs molten metal in a continuously cast strand and at least one set of two water-cooling pipes positioned in front of the stirrer and having nozzles which eject water cooling-sprays against the strand. The two pipes have ends extending beyond the field and between their ends are electrically isolated from each other and the stirrer. By electrically interconnecting these ends outside of the field, the two pipes form a closed electric loop in which currents induced by the stirrers field cancel so that the net current flow is zero and the stirrer's field is not shielded from the strand.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.