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. 07, 1982
Filed:
May. 07, 1980
Applicant:
Inventors:
Takeshi Hiraoka, Ageo, JP;
Shigeru Urano, Omiya, JP;
Masajiro Takeshita, Yono, JP;
Keiji Nakamura, Funabashi, JP;
Assignee:
Nippon Piston Ring Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75238 ; 75236 ; 75237 ; 75241 ;
Abstract
An abrasion resistant ferro-based sintered alloy comprising 0.8 to 1.5% by weight of carbon, 0.5 to 2.5% by weight of chromium, 2.0 to 6.0% by weight of molybdenum, 1.5 to 5.0% by weight of nickel, 0.1 to 2.0% by weight of tungsten, 0.2 to 5.0% by weight of copper and the balance iron wherein said alloy contains molybdenum particles around which nickel is distributed and which are uniformly dispersed in the base structure comprising a mixture of pearlite, bainite and martensite and said alloy contains composite carbide of Fe-Cr-W-C dispersed in the base structure, is disclosed.