Global Patent Index - EP 1619263 A1

EP 1619263 A1 20060125 - Sintered valve guide and manufacturing method thereof

Title (en)

Sintered valve guide and manufacturing method thereof

Title (de)

Gesinterte Ventilschaftführung und Verfahren zur Herstellung davon

Title (fr)

Guide de soupape fritté et procédé de sa fabrication

Publication

EP 1619263 A1 20060125 (EN)

Application

EP 05015445 A 20050715

Priority

JP 2004209064 A 20040715

Abstract (en)

Disclosed is a sintered valve guide guide formed of a sintered alloy consisting essentially of 3.5 to 5 % copper, 0.3 to 0.6 % tin, 0.04 to 0.15 % phosphorus, 1.5 to 2.5 % carbon and the balance iron, by mass, and as occasion needs, further containing 0.46 to 1.41 % metal oxide, and MnS and/or magnesium silicate. The metallographic structure has: a matrix containing a pearlite phase, a Fe-P-C compound phase and a Cu-Sn alloy phase; pores; and a graphite of 1.2 to 1.7 % by mass of the sintered alloy. In the cross section, the ratio of the pearlite phase to the matrix is 90 area% or more, the ratio of the Fe-P-C com

IPC 8 full level

C22C 33/02 (2006.01); B22F 1/00 (2006.01); C22C 9/02 (2006.01); C22C 32/00 (2006.01); C22C 38/00 (2006.01); C22C 38/16 (2006.01); F01L 3/08 (2006.01); F16C 33/12 (2006.01)

CPC (source: EP KR US)

B22F 3/10 (2013.01 - KR); C22C 1/04 (2013.01 - KR); C22C 9/02 (2013.01 - EP KR US); C22C 33/0214 (2013.01 - EP KR US); C22C 33/0228 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP KR US); C22C 38/008 (2013.01 - EP KR US); C22C 38/16 (2013.01 - EP KR US); F01L 3/02 (2013.01 - EP US); F01L 3/08 (2013.01 - EP KR US); B22F 2998/00 (2013.01 - EP KR US); B22F 2999/00 (2013.01 - EP KR US); F01L 2301/00 (2020.05 - EP KR US)

Citation (applicant)

Citation (search report)

  • [X] US 2002023518 A1 20020228 - CHIKAHATA KATSUNAO [JP], et al
  • [XA] EP 0481763 A1 19920422 - HITACHI POWDERED METALS [JP]
  • [A] EP 0420309 A1 19910403 - BRICO ENG [GB]
  • [A] US 6012703 A 20000111 - HAYASHI KOICHIRO [JP], et al
  • [A] EP 0621347 A1 19941026 - MITSUBISHI MATERIALS CORP [JP], et al
  • [A] US 4344795 A 19820817 - ENDO HIROYUKI, et al
  • [A] PATENT ABSTRACTS OF JAPAN vol. 001, no. 005 (M - 004) 11 March 1977 (1977-03-11)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 110 (M - 0943) 28 February 1990 (1990-02-28)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 265 (C - 0726) 8 June 1990 (1990-06-08)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 018, no. 271 (C - 1203) 24 May 1994 (1994-05-24) & "IC engine valve guide - is sintered ferrous alloy contg. controlled amts. of carbon, copper, tin and phosphorus", DERWENT, 1980, XP002274790

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1619263 A1 20060125; EP 1619263 B1 20190424; CN 100516271 C 20090722; CN 1721566 A 20060118; KR 20060050208 A 20060519; US 2006032328 A1 20060216

DOCDB simple family (application)

EP 05015445 A 20050715; CN 200510084201 A 20050715; KR 20050064172 A 20050715; US 18263805 A 20050714