Flux powder for use during continuous casting of steel

US3984236A · kind A · utility

Assignees

• Concast AG · CH
• Holderbank Financiere AG · CH

Inventors

• Peter Koenig · Wiesloch, DE
• Friedrich Hofmanner · Regensdorf, CH

Key dates

• Filing date: Jan 20, 1975
• Grant date: Oct 5, 1976
• Expiry date: Jan 20, 1995

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D11/111
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A flux powder for use during the continuous casting of steel, containing Portland cement, a fluxing agent and a carbon carrier. The carbon carrier possesses a grain size of less than 1 .mu., the powder having an aluminum oxide content in the range between 2 - 12 percent by weight, and a lime-silica ratio adjusted between 0.7 and 1.0 through the addition of quartz powder. The carbon carrier is carbon black containing carbon in an amount of 2 - 8 percent by weight, and wherein the carbon black is present as powder carbon black. The powder carbon black can be in the form of lamp black.