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. 18, 2001
Filed:
May. 03, 2000
Applicant:
Inventors:
Marco Zwinkels, Solna, SE;
Ulf Rolander, Stockholm, SE;
Gerold Weinl, Älvsjö, SE;
Anders Piirhonen, Sandviken, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/00 ; B22F 3/10 ;
U.S. Cl.
CPC ...
B22F 3/00 ; B22F 3/10 ;
Abstract
The present invention relates to a method for manufacturing a sintered body of carbonitride alloy with titanium as the main component and cobalt as the binder phase and which does not have any compositional gradients or center porosity concentration after sintering. This is achieved by processing the material in a specific manner to obtain a lower melting point of the liquid phase in the interior of the body than in the surface while balancing the gas atmosphere outside the body with the alloy composition during all stages of the liquid phase sintering.