Title:
VALVE AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2003207059
Kind Code:
A
Abstract:
To provide a valve having superior wear resistance and seizure resistance without containing cobalt.
Valve seats 4, 5 of a valve element 2 and a valve box 3 are formed of a nickel group alloy in which small-size silicide particles or boronide particles are finely dispersed. Liquid phase diffusion bonding is applied between the valve seat and the valve element or the valve box via an insert material formed of a low-melting-point nickel group alloy.
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Inventors:
CHIKAZAKI MITSUO
MATSUSHITA SHIZUO
KUNIYA JIRO
KIYOTOKI YOSHIHISA
TAKESHIMA KIKUO
SAKAMOTO AKIRA
CHIBA YOSHITERU
MATSUSHITA SHIZUO
KUNIYA JIRO
KIYOTOKI YOSHIHISA
TAKESHIMA KIKUO
SAKAMOTO AKIRA
CHIBA YOSHITERU
Application Number:
JP2002004034A
Publication Date:
July 25, 2003
Filing Date:
January 11, 2002
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G21D1/00; B22F5/00; B22F7/06; C22C1/05; C22C19/05; C22C38/12; C22C38/32; C22C38/34; F16K3/12; F16K25/00; (IPC1-7): F16K3/12; C22C1/05; C22C19/05; F16K25/00; G21D1/00
Attorney, Agent or Firm:
Sakuta Yasuo