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Title:
WEAR RESISTANT MEMBER
Document Type and Number:
Japanese Patent JP2004115897
Kind Code:
A
Abstract:

To solve the problem that the conventional material obtained by incorporating sintered hard particles into a hard material is insufficient in wear resistance though the upper limit of the content of the sintered hard particles is 20 vol.%.

The sintered compact comprises sintered hard particles and a hard material. Then, the content of the sintered hard particles in the sintered compact is 20 to 50 vol.%, and, among them, the fine particles having a particle size of 3 to <20 μm are contained in A% by volume, and the coarse particles having a particle size of 20 to 100 μm are contained in B% by volume . The respective sintered hard particles are independent each other, and the relation of 1≤B÷A≤10 is satisfied between the values of A and B. Further, the sintered compact can have a double layer structure with the one whose thermal expansion coefficient lies in the middle between that of the wear resistant member and that of steel.


Inventors:
TSUZUKI KATSUNORI
MORIGUCHI HIDEKI
Application Number:
JP2002284389A
Publication Date:
April 15, 2004
Filing Date:
September 27, 2002
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
C22C29/08; B22F1/02; B22F3/10; B22F3/105; B22F5/00; B22F7/02; (IPC1-7): B22F3/10; B22F1/02; B22F3/105; B22F7/02; C22C29/08
Attorney, Agent or Firm:
Hiroshi Yamano
Hidemi Aoki