EP 2436463 A2 20120404 - Sintered materials for valve guides and production methods therefor
Title (en)
Sintered materials for valve guides and production methods therefor
Title (de)
Gesinterte Materialien für Ventilführungen und Herstellungsverfahren dafür
Title (fr)
Matériaux frittés pour guides de soupape et procédés de production associés
Publication
Application
Priority
JP 2010222975 A 20100930
Abstract (en)
A sintered material for valve guides consists of, by mass %, 1.3 to 3 % of C, 1 to 4 % of Cu, and the balance of Fe and inevitable impurities. The sintered material exhibits a metallic structure made of pores and a matrix, the matrix is a mixed structure of a pearlite phase, a ferrite phase, an iron carbide phase, and a copper phase, and a part of the pores includes graphite that is dispersed therein. The iron carbide phase is dispersed at 3 to 25 % by area ratio and the copper phase is dispersed at 0.5 to 3.5 % by area ratio with respect to a cross section of the metallic structure, respectively.
IPC 8 full level
B22F 3/10 (2006.01); B22F 3/11 (2006.01); B22F 5/00 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); F01L 3/02 (2006.01)
CPC (source: EP KR)
B22F 3/1028 (2013.01 - EP KR); B22F 3/11 (2013.01 - EP KR); B22F 5/008 (2013.01 - EP KR); C22C 9/00 (2013.01 - EP KR); C22C 9/02 (2013.01 - EP KR); C22C 13/00 (2013.01 - EP KR); C22C 33/0264 (2013.01 - EP KR); C22C 38/008 (2013.01 - EP KR); C22C 38/16 (2013.01 - EP KR); F01L 3/02 (2013.01 - EP KR)
Citation (applicant)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2436463 A2 20120404; EP 2436463 A3 20120711; EP 2436463 B1 20130710; CN 102443739 A 20120509; CN 102443739 B 20140507; JP 2012092441 A 20120517; JP 5783457 B2 20150924; KR 101365816 B1 20140220; KR 20120034052 A 20120409
DOCDB simple family (application)
EP 11007891 A 20110928; CN 201110315889 A 20110930; JP 2011211843 A 20110928; KR 20110099927 A 20110930