Hardening protection compositions for partial carburization of metallic components

US6964712B2 · kind B2 · utility

Assignee

• Durferrit GmbH · DE

Inventors

• Stefan Wigger · Clausthal-Zellerfeld, DE
• Ulrich Baudis · Hanau, DE

Key dates

• Filing date: Aug 7, 2001
• Grant date: Nov 15, 2005
• Expiry date: Aug 7, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C8/04
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Hardening protection compositions based on substances which form boron glass for partial carburization of metallic components, which contain magnesium-silicon compounds as an additive. These hardening protection compositions can be used very advantageously in processes for the partial carburization of metallic components and in particular are outstandingly suitable for vacuum carburization.