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:
Sep. 14, 1999
Filed:
Jun. 16, 1998
Applicant:
Inventors:
Louis-Philippe Lefebvre, Montreal, CA;
Yannig Thomas, Montreal, CA;
Assignee:
National Research Council of Canada, Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75252 ; 75249 ; 75231 ; 419 37 ; 419 57 ;
Abstract
Aluminum powder compositions intended for powder metallurgy applications are provided. The powder compositions contain aluminum and aluminum alloys or blends made from elemental powders, admixed with a polyethylene lubricant. The polyethylene admixture eases the compaction of powders and the ejection of parts. As compared to other conventional admixed lubricants used for Al powder metallurgy applications, polyethylene allows to obtain parts with higher green and sintered strengths. Proper delubrication prior to sintering is of importance.