The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 1994
Filed:
Nov. 13, 1992
Applicant:
Inventors:
James R Johnson, River Falls, WI (US);
Mary L Orfield, Menomonie, WI (US);
William J Mueller, Colfax, WI (US);
Assignee:
Hoeganaes Corporation, Riverton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ;
U.S. Cl.
CPC ...
427217 ; 427216 ; 428407 ; 428470 ;
Abstract
A method is provided for incorporating lubricant and a sintering aid into a metallurgical powder composition of iron-based powders. A particulate iron-based powder is contacted and wetted with solution of a metal salt of a fatty acid in an organic solvent. The solvent is removed to provide iron-based particles having a coating of the metal salt. The resulting self-lubricated powder composition can be compacted and sintered to produce a compact having superior strength properties.