EP 1522601 B1 20130501 - Sintered component made of stainless steel with high corrosion resistance and production method therefor
Title (en)
Sintered component made of stainless steel with high corrosion resistance and production method therefor
Title (de)
Gesintertes Pulvermetallbauteil auf rostfreier Stahlbasis mit hoher Korrosionsbeständigkeit sowie Verfahren zu dessen Herstellung
Title (fr)
Corps fritté à base d'acier inoxydable avec une résistance à la corrosion élevée et procédé de production correspondant
Publication
Application
Priority
JP 2003341527 A 20030930
Abstract (en)
[origin: EP1522601A2] A sintered component made of stainless steel with high corrosion resistance is obtained by preparing a perovskite composite oxide powder made of rare earth element, transition metal element and oxygen, and a stainless steel powder or a mixed powder having a stainless steel composition, mixing the perovskite composite oxide powder and the stainless steel powder or the mixed powder, whereby a raw powder in which the rare earth element is 0.1 to 12 mass% is prepared, compacting the raw powder in a predetermined shape, whereby a green compact is obtained, and sintering the green compact. The sintered component is a component in which corrosion resistance can be increased without parts of decreasing Cr concentration and precise production processes and process control are not necessary.
IPC 8 full level
B22F 1/00 (2006.01); C22C 32/00 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 38/18 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP US)
C22C 32/0089 (2013.01 - EP US); C22C 33/0228 (2013.01 - EP US); C22C 38/18 (2013.01 - EP US)
Citation (examination)
JP H10183315 A 19980714 - HITACHI POWDERED METALS, et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1522601 A2 20050413; EP 1522601 A3 20060628; EP 1522601 B1 20130501; JP 2005105368 A 20050421; JP 4208689 B2 20090114; US 2005095163 A1 20050505
DOCDB simple family (application)
EP 04023061 A 20040928; JP 2003341527 A 20030930; US 94611904 A 20040922