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:
May. 13, 2003
Filed:
Feb. 19, 2001
Applicant:
Inventors:
Harald Staubach, Alzenau, DE;
Lothar Zapf, Alzenau, DE;
Assignee:
Vacuumschmelze GmbH, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/24 ;
U.S. Cl.
CPC ...
B22F 3/24 ;
Abstract
The invention relates to a method for producing a sintered material offering improved corrosion protection by activation and coating of the surface with a metal, followed by a heat treatment. Said method is characterized in that during activation and before coating with said metal the following steps are carried out: removal of particles adhering to the surface of the sintered material by treating said surface with a stripper; passivation of the surface; and drying of the sintered material. The invention also relates to a magnetic body with greater corrosion resistance.