Title:
MOLDING MATERIAL MADE OF COMPOSITE SINTERED MATERIAL FOR ELECTROMAGNETIC MACHINE
Document Type and Number:
Japanese Patent JPS54162106
Kind Code:
A
Abstract:
Structural components, which are stressed electromagnetically and thermally and of which the side walls are 4 time the wall thickness, are produced by powder metallurgy, the side walls being composed of several phases side-by-side, and evenly distributed along the wall. One phase at least is ferromagnetic and at least one other has a good electrical conductivity. Component is produced by filling a mould with the powder mixt. composed of the two materials so that the layers extend parallel to the longitudinal direction, compacting and sintering under a protective gas atm. or vacuum without the formation of a liq. phase, and extruding the sintered body, which is free of cracks or blowholes and of 95% density, to the final shape with a material flow in the longitudinal direction. Method produces structural components of superior conductivity and electrical properties, and is partic. suitable for the prodn. of motor rotors.
Inventors:
YOAHIMU GUROOSE
HAINTSU HANMERURU
HAINRITSUHI HESURAA
HAINTSU HANMERURU
HAINRITSUHI HESURAA
Application Number:
JP6874379A
Publication Date:
December 22, 1979
Filing Date:
June 01, 1979
Export Citation:
Assignee:
SIEMENS AG
International Classes:
B22F1/00; B22F3/00; B22F7/06; B32B15/00; H01F1/20; H01F1/22; H02K1/02; H02K1/22; (IPC1-7): B32B15/00; H01F1/14; H02K1/02