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:
Oct. 19, 1999
Filed:
Apr. 30, 1997
Applicant:
Inventors:
Moon Hee Hong, Seoul, KR;
Woon Hyung Baek, Daejon, KR;
Joon Woong Noh, Daejon, KR;
Heung Sub Song, Daejon, KR;
Seong Lee, Daejon, KR;
Eun Pyo Kim, Daejon, KR;
Assignee:
Agency for Defense Development, Daejon, KR;
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 54 ; 419 38 ; 419 47 ; 419 57 ; 419 58 ;
Abstract
A sintering method for a W--Ni--Mn type heavy alloy, including controlling the deoxidization of tungsten and nickel under an inert atmosphere, changing to a hydrogen atmosphere at above a temperature at which manganese is deoxidized and simultaneously deoxidizing tungsten, nickel and manganese, and sintering by raising the temperature, resulting in the fabrication of a sintered heavy alloy having a 100% relative theoretical density.