Title:
HIGH HARDNESS SINTERED ALLOY EXCELLENT IN CORROSION RESISTANCE AND MACHINABILITY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH0610084
Kind Code:
A
Abstract:
PURPOSE: To improve the machinability of the sintered compact of a Co base high strength sintered alloy without deteriorating its corrosion resistance.
CONSTITUTION: Co base alloy powder contg., by weight, 25 to 30% Cr, 3 to 9% W, ≤1.0% Mn and 1.2 to 2.0% C and furthermore contg. one or ≥ two kinds selected from 0.02 to 0.30% S, 0.01 to 0.30% Se and 0.01 to 0.30% Te is mixed with a binder, and this mixture is compacted. After that, the binder in the compact is removed by heating it in a nonoxidizing atmosphere, and furthermore, the compact is sintered in a nonoxidizing atmosphere.
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Inventors:
MARUTA KEIICHI
MAKIISHI YUKIO
SUZUKI HIDEO
MAKIISHI YUKIO
SUZUKI HIDEO
Application Number:
JP17089392A
Publication Date:
January 18, 1994
Filing Date:
June 29, 1992
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
C22C19/07; (IPC1-7): C22C19/07
Domestic Patent References:
| JPH03281747A | 1991-12-12 | |||
| JPS5285905A | 1977-07-16 | |||
| JPS5619391A | 1981-02-24 |
Attorney, Agent or Firm:
Yoshio Kosugi (1 person outside)
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