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. 02, 1991
Filed:
Apr. 06, 1990
Applicant:
Inventors:
Assignee:
Izumi Industries, Ltd., Kawagoe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ; F02F / ;
U.S. Cl.
CPC ...
428614 ; 148437 ; 428613 ; 428651 ; 428652 ; 428653 ;
Abstract
A porous metal supporting a composite portion of an aluminum alloy is formed by means of pressing a pair of surfaces thereof, and then chromium is cemented by diffusion before the molten aluminum alloy is penetrated thereinto. Thus, not only the mechanical strength of the interface between the aluminum alloy and the porous metal, but also the wear resistance of the composite portion can be improved.