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:
Feb. 09, 1982
Filed:
Jan. 21, 1980
Applicant:
Inventors:
David H Ro, Cleveland Heights, OH (US);
Erhard Klar, Beachwood, OH (US);
C I Whitman, Bay Village, OH (US);
Assignee:
SCM Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
75228 ; 75251 ; 75245 ; 75200 ; 75224 ; 7512 / ; 7512 / ;
Abstract
The corrosion resistance of stainless steel powder compacts containing tin and silicon is maximized if the compacts are sintered at temperatures in excess of 2300.degree. F. in highly reductive atmospheres until the ratio of Sn:Si on the surface of the compact is at least about 1:1. Stainless steel powders atomized in an oxidizing atmosphere and containing up to about 1 percent oxygen can be utilized.