Process for preparing rare earth containing hard alloy

Details Process for preparing rare earth containing hard alloy Process for preparing rare earth containing hard alloy

1991-07-16

1993-09-28

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

75359, 419 18, 423 211, 423440, C22C 2908

Patent

active

052483282

ABSTRACT:
This invention discloses a process for preparing rare earth containing hard alloy, comprising preparing metal carbide powder containing rare earth metals or cobalt powder containing rare earth metals by using wet coprecipitating method; according to the composition of alloy, at least one kind of the metal carbide powder containing rare earth metal and cobalt powder containing rare metals being mixed homogeneously with other raw materials, shaping and finally sintering under high temperature. The process of the invention is simple technologically. The properties of the products produced by the process of the invention are good, stable and repeatable.

REFERENCES:
patent: 3515540 (1970-06-01), Meadows
patent: 4872904 (1989-10-01), Dorfman
patent: 4902471 (1990-02-01), Penkunas et al.
patent: 4923512 (1990-05-01), Timm et al.
patent: 4965044 (1990-10-01), Miyamoto et al.

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