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. 07, 1987
Filed:
Oct. 11, 1985
Applicant:
Inventors:
Sigemi Osaki, Hiroshima, JP;
Norio Yousina, Hiroshima, JP;
Tsuyoshi Morishita, Hiroshima, JP;
Yasuhumi Kawado, Iwakuni, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419-8 ; 419 23 ; 419 36 ; 419 43 ; 419 47 ; 428552 ; 428562 ; 428563 ;
Abstract
A process for forming a sintered layer on a substrate of an iron-based material containing carbon. A sheet of powders of an alloy is prepared by mixing the powders with a solution of resin and rolling the mixture into a sheet. The sheet is then heated to a sintering temperature. In order to prevent carbon content in the substrate from diffusing to the powder sheet during the sintering process, a lamina is provided beneath the powder sheet for example by a metal plating, a metal oxide layer, an intermediate alloy powder sheet, a decarbonized layer.