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:
Apr. 28, 1992
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Assignee:
Sanyo Special Steel Company, Limited, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F / ;
U.S. Cl.
CPC ...
419-6 ; 419 30 ; 428558 ;
Abstract
A method of making a disc-shaped or plate-shaped sintered body from powdered material of poor ductility, such as Sendust alloy, wherein the powdered material is filled in a dish-like metallic vessel having a thick bottom wall and a low side wall, a plurality of such filled vessels are piled up and put in a cylindrical capsule made of hot-workable metal, the capsule is charged in a container of a hot extrusion press whose outlet is closed and it is then heated and compressed. The resultant compressed product is taken out and cooled and metallic parts resulted from the vessels and capsule are removed from the compressed product, thereby obtaining plate-shaped sintered bodies as wanted.