Metal powder composition

US8992659B2 · kind B2 · utility

Assignee

• HOGANAS AB (PUBL) · SE

Inventors

• Mats Larsson · Kalmar, SE
• Karin Olsson · Lund, SE
• Hilmar Vidarsson · Ängelholm, SE

Key dates

• Filing date: Sep 1, 2010
• Grant date: Mar 31, 2015
• Expiry date: Sep 1, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C33/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A metal powder composition including: an iron or iron-based powder composition, and a lubricating combination including a substance A, a substance B, and a substance C; wherein: substance A is a polyolefin, substance B is chosen from a group of saturated and unsaturated fatty acid amides, saturated and unsaturated fatty acid bisamides, saturated fatty alcohols and fatty acid glycerols, and substance C is an amide oligomer having a molecular weight between 500 g/mol and 30 000 g/mol; and wherein the amounts of respective substances A, B and C in weight percent of the iron or iron-based powder composition are: 0.05≦A+B<0.4 wt %, C≧0.3 wt %, A+B+C≦2.0 wt %, and the relation between substances A and B is: B/A>0.5. Also, a method of producing a metal powder composition and a method for producing a green component.