Apparatus and method for forming a wear-resistant metal composit

Details Apparatus and method for forming a wear-resistant metal composit Apparatus and method for forming a wear-resistant metal composit

1985-06-28

1986-08-12

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 62, 75 68R, 75 93R, 266216, 420402, 420528, 420590, C22B 2100, C22B 2622, F27B 1300

Patent

active

046054383

ABSTRACT:
The invention described herein is an apparatus and method for forming a wear-resistant metal composition. As a specific example, aluminum oxide powder is added to a magnesium alloy to provide a wear-resistant magnesium composition. The magnesium alloy, as the base metal, is placed in a crucible and melted with a burner positioned external to the crucible. A pump having a suction side and a discharge side is mounted on the crucible, with the pump head being suspended below the surface of the molten magnesium. The pump includes a feed tube connected to the suction side, and this tube has a suction opening therein which lies partly above and partly below the surface of the molten metal. The aluminum oxide is fed into the feed tube, and the suction action of the pump causes a vortex at the molten metal surface. The vortex pulls the molten magnesium through the suction opening where it mixes with the aluminum oxide powder. The resulting blend of magnesium and aluminum oxide gives a good, wear-resistant magnesium product.

REFERENCES:
patent: 2890039 (1959-06-01), Schmidt
patent: 3272619 (1966-09-01), Sweeney et al.
patent: 3728108 (1973-04-01), Sifferlen et al.
patent: 3858640 (1975-01-01), Sifferlen
patent: 4298377 (1981-11-01), Szekely

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