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:
Mar. 20, 1990
Filed:
Oct. 02, 1987
Applicant:
Inventor:
Karl Leithner, Rankweil, AT;
Assignee:
Etablissement Supervis, Vaduz, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75237 ; 75243 ; 75246 ; 420-9 ; 420 92 ; 420 93 ; 420 99 ; 420119 ; 420123 ;
Abstract
A highly wear-resistant sintered alloy is to be provided, with which, using conventional sintering technology and no additional hardening treatment, commodity parts are to be produced, which, in respect to their wear property are to be equivalent to chilled cast iron parts. They should have a surface roughness of approximately 50 Rockwell and only a slight shrinkage. This is accomplished with an iron-nickel-copper-molybdenum sintered alloy with addition of phosphorus, which contains a proportion of carbon, which exceeds the phosphorus added by at least a factor of 2. Essentially, the alloy has the following composition: