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:
Aug. 04, 1992
Filed:
Aug. 07, 1990
Applicant:
Inventors:
Assignee:
Sumitomo Metal Mining Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ; B22F / ;
U.S. Cl.
CPC ...
419 36 ; 419 38 ; 264 22 ; 264 63 ; 2643282 ;
Abstract
A process for producing an injection-molded sintered product by powder metallurgy includes injection molding a kneaded product including a magnetic powder and a binder, releasing the molded product from the metal mold, and sintering the molding after debindering, wherein the molding is taken out from the metal mold using an electromagnet which exerts an adsorptive force to the molding. The process simplifies the release of the injection-molded products from metal molds and the transfer of the molding to the debindering process. The process is suitable for mass production, gives high yield, and has a wide applicability to products regardless of their shape.