Method for rapid cooling molten alumina abrasives

Details Method for rapid cooling molten alumina abrasives Method for rapid cooling molten alumina abrasives

1977-10-21

1979-02-20

Arnold, Donald J.

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

264 8, 264 14, 264298, C04B 3116, B24D 304

Patent

active

041404947

ABSTRACT:
Molten aluminous oxide abrasive, particularly molten mixtures of alumina and zirconia, are rapidly cooled and solidified by pouring into an agitated molten metal bath, having a boiling point above the temperature of said molten abrasive, such as molten tin, while being protected from oxidation. The solidified abrasive particles float to the top of the metal bath, are removed and separated from adhering metal, as by centrifuging, and crushed to abrasive grit-sized particles.

REFERENCES:
patent: 3660544 (1972-05-01), Young et al.
patent: 3928515 (1975-12-01), Richmond
patent: 4059417 (1977-11-01), Ilmaier et al.
patent: 4063942 (1977-12-01), Lundgren

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