Method for producing amalgamable alloy

Details Method for producing amalgamable alloy Method for producing amalgamable alloy

1985-11-12

1987-05-12

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By impinging plural liquid masses

75 05C, 264 12, 420502, B29B 900

Patent

active

046648550

ABSTRACT:
A process for manufacturing an atomized amalgamable alloy having mold adaptation characteristics superior to other atomized alloys and comparable or better than those for ad-mixed type alloys (alloys which are mixtures of spherical and irregularly shaped particles), and physical properties comparable to ad-mixed alloys. The process includes the steps of: producing a melt of an amalgamable alloy; atomizing the alloy so as to form particles which are primarily irregular in shape; collecting the particles; drying the particles; mechanically working the particles so as to fracture and change their shape; classifying the particles to finer than 53 microns; heat treating the particles; and reducing oxides from the surface of the particles.

REFERENCES:
patent: 3305356 (1967-02-01), Youdelis
patent: 3588951 (1971-06-01), Hegmann
patent: 3871876 (1975-03-01), Asgar et al.
patent: 3997329 (1976-12-01), Aliotta
patent: 4374085 (1983-02-01), Asgar et al.
patent: 4479823 (1984-10-01), Hohmann
"Marginal Leakage of Dental Amalgam" by F. Fanian, F. Hadavi and K. Asgar--Aug. 11, 1983, Operative Dentistry.
"Creep and Corrosion of Amalgam" by D. B. Mahler, J. E. Adey and M. Marek, Journal of Dental Research, 61:33, Jan. 1982.
"Corrosion Test for Dental Amalgam" by M. Marek, Journal of Dental Research, 59:63, Jan. 1980.

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