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. 08, 2015
Filed:
Apr. 26, 2010
Applicant:
Stefan Ederyd, Saltsjö-Boo, SE;
Inventor:
Stefan Ederyd, Saltsjö-Boo, SE;
Assignee:
Sandvik Intellectual Property AB, Sandviken, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/24 (2006.01); C22C 29/08 (2006.01); B22F 1/00 (2006.01);
U.S. Cl.
CPC ...
C22C 29/08 (2013.01); B22F 1/0011 (2013.01); Y10T 407/27 (2015.01); Y10T 408/89 (2015.01);
Abstract
The present invention relates to a cemented carbide with a homogeneous and dense microstructure of hard constituents in a well distributed binder phase based on Co and/or Ni with a porosity of AOO-BOO according to ISO 4505. The cemented carbide has a nanoporosity of less than 2.5 pores/1000 μmwith a size of 0.5-1 μm. The cemented carbide is produced by using a binder phase powder with a specific surface area of 3 to 8 m/g with a sponge shape and a grain size of the sponge shaped particles of between 1 and 5 μm.