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. 16, 2003
Filed:
May. 22, 2001
Applicant:
Inventors:
Hans-Peter Koch, Stuttgart, DE;
Andreas Harzer, Schwieberdingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/00 ; B22F 3/08 ;
U.S. Cl.
CPC ...
B22F 3/00 ; B22F 3/08 ;
Abstract
A soft magnetic material, and a method for manufacturing it, which is suitable, e.g., for use in solenoid valves is described. The individual powder particles of a metallic powdery initial component are equipped superficially at least largely with a high-resistance surface layer and the powder particles are densified into the material. Upon densification of the powdery metallic initial component into the soft magnetic material, the surface layers of the powder particles are additionally at least locally welded to one another. Welding can be achieved using shock densification.