EP 0401482 B1 19940615 - Wear resistant sintered alloy, especially for valve seats for internal combustion engines.
Title (en)
Wear resistant sintered alloy, especially for valve seats for internal combustion engines.
Title (de)
Verschleissfeste Sinterlegierung, insbesondere für Ventilsitzringe von Verbrennungskraftmaschinen.
Title (fr)
Alliage fritté résistant à l'usure, notamment pour des sièges de soupapes dans les moteurs à combustion interne.
Publication
Application
Priority
DE 3918875 A 19890609
Abstract (en)
[origin: EP0401482A2] A sintered alloy for, in particular, valve seats for use in internal combustion engines operated both with unleaded and with leaded fuels consists of a martensitic iron alloy as a matrix in which is incorporated 5 to 20 % by weight of hard intermetallic phases, and it has been found that this sintered alloy is wear-resistant and corrosion-resistant in both fuels and has a long life. The starting powder mixture is economical, has good flow and compressibility properties and can be moulded and sintered with good dimensional accuracy and thus used economically in the mass production of the workpieces. <IMAGE>
IPC 1-7
IPC 8 full level
C21D 1/18 (2006.01); C22C 33/02 (2006.01); F01L 3/02 (2006.01); F01L 3/22 (2006.01)
CPC (source: EP)
C21D 1/18 (2013.01); C22C 33/0207 (2013.01); F01L 3/22 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0401482 A2 19901212; EP 0401482 A3 19910502; EP 0401482 B1 19940615; DE 59006107 D1 19940721; ES 2055200 T3 19940816
DOCDB simple family (application)
EP 90105398 A 19900322; DE 59006107 T 19900322; ES 90105398 T 19900322