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:
Jul. 31, 2012
Filed:
Sep. 20, 2007
Applicants:
Ola Bergman, Helsingborg, SE;
Paul Dudfield Nurthen, East Peckham Tonbridge, GB;
Inventors:
Ola Bergman, Helsingborg, SE;
Paul Dudfield Nurthen, East Peckham Tonbridge, GB;
Assignee:
Hoganas AB (Publ), Hoganas, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); C22C 33/02 (2006.01); C22C 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An annealed prealloyed water atomised iron-based powder is provided which is suitable for the production of pressed and sintered components having high wear resistance. The iron-based powder comprises 15-30% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W and V, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large chromium carbides. A method for production of the iron-based powder also is provided.