Title:
焼結バルブガイドおよびその製造方法
Document Type and Number:
Japanese Patent JP5525986
Kind Code:
B2
Abstract:
A sintered valve guide exhibits a metallic structure having a mixed structure and a hard phase in which hard particles are dispersed in an alloy matrix. The mixed structure consists of pearlite, an Fe—P—C ternary eutectic phase, a ferrite phase, a copper phase, and pores, and the mixed structure consists of, by mass %, 0.075 to 0.525% of P, 3.0 to 10.0% of Cu, 1.0 to 3.0% of C, and the balance of Fe and inevitable impurities. The hard phase is dispersed at 2 to 15 mass % in the mixed structure.
Inventors:
Hiroki Fujitsuka
Hideaki Kawada
Hideaki Kawada
Application Number:
JP2010221578A
Publication Date:
June 18, 2014
Filing Date:
September 30, 2010
Export Citation:
Assignee:
Hitachi Powdered Metals Co., Ltd.
International Classes:
C22C38/00; B22F1/00; B22F5/00; C22C9/02; C22C13/00; C22C19/07; C22C27/04; C22C33/02; C22C38/56; F01L3/08
Domestic Patent References:
| JP61243156A | ||||
| JP953421A | ||||
| JP200269598A | ||||
| JP200652468A | ||||
| JP2006299404A | ||||
| JP2000144351A | ||||
| JP6306409A |
Attorney, Agent or Firm:
Suenari Mikio
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