Iron-base alloy containing chromium-tungsten carbide and a method of producing it

US7442261B2 · kind B2 · utility

Assignee

• Proengco Tooling AB · SE

Inventors

• Anders Nilsson · Falköping, SE
• Jan-Eric Stahl · Lund, SE
• Carl-Hkan Andersson · Handen, SE

Key dates

• Filing date: May 15, 2001
• Grant date: Oct 28, 2008
• Expiry date: May 28, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C37/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a method of producing an iron-based alloy containing chromium carbide, pieces of cemented carbide are added to an iron-based melt containing carbon, e.g. cast iron. Chromium, which regulates the solution of WC into the melt, is also added. The molten alloy is then cast. An alloy comprising chromium-tungsten-carbide in a ferrous matrix is produced. Uses of the alloy are claimed.