Tundish and method for production of a metal strip of high purity

US7108048B2 · kind B2 · utility

Assignee

• Voest-Alpine Industrieanlagenbau GmbH & Co. · AT

Inventors

• Markus Brummayer · Aschach, AT
• Gerald Eckerstorfer · Linz, AT
• Gerald Hohenbichler · Steyr, AT
• Karl Moerwald · St. Florian, AT

Key dates

• Filing date: Dec 4, 2002
• Grant date: Sep 19, 2006
• Expiry date: Jan 18, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D41/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

To achieve the highest possible separation rate for foreign particles in a tundish combined, at the same time, with a minimized level of inclusions, the refractory-lined interior space of the tundish, as a function of an operating bath level (h), satisfies the condition that a dimensionless ratio (κ) of the refractory-lined surface area (Aref) to the filling volume (V) which is delimited by this refractory-lined surface area and the bath-level-dependent exposed surface area (ATop) and results from the relationshipbe between 3.83 and 4.39.