Iron powder composition

US6755885B2 · kind B2 · utility

Assignee

• Höganäs AB · SE

Inventors

• Hilmar Vidarsson · Ängelholm, SE
• Per Knutsson · Linköping, SE

Key dates

• Filing date: Jul 25, 2002
• Grant date: Jun 29, 2004
• Expiry date: Jan 3, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F2003/145
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A powder composition for warm compaction comprising an iron-based powder and a lubricant powder consisting essentially of an amide described by the following formula D—Cm—B—A—B—Cm—D wherein D is —H, COR, CNHR, wherein R is a straight or branched aliphatic or aromatic group including 2-21 C atoms; C is the group —NH (CH)n CO—; B is amino or carbonyl; A is alkylene having 4-16 C atoms optionally including up to 4 O atoms m is an integer 1-10 and n is an integer 5-11.