Sintered metal articles and their manufacture

Details Sintered metal articles and their manufacture Sintered metal articles and their manufacture

1981-11-12

1983-11-01

Sheehan, John P.

Metal treatment

Compositions

Heat treating

148 166, 419 27, 4273839, 427437, C21D 148

Patent

active

044128738

ABSTRACT:
Sintered metal articles especially sealing rings of less than 25 mm diameter are formed by plating sintered metal skeletons with a metal of lower melting point than the metal of the skeletons, for example, copper. The plated skeletons are then heated, preferably in a stack, to melt the plated metal, which infiltrates the skeletons. The articles so produced are stronger than and have greater elasticity than the skeletons themselves due to the presence of the plated metal in the skeletons.

REFERENCES:
patent: 2409295 (1946-10-01), Marvin et al.
patent: 2456779 (1948-12-01), Goetzel
patent: 2489839 (1949-11-01), Whitney
patent: 2653377 (1953-09-01), Seelig
patent: 4261745 (1981-04-01), Watanabe et al.
A Dictionary of Metallurgy, A. D. Merriam, 1958, p. 249.
Treatise on Powder Metallurgy--Goetzer--vol. II, pp. 533; 535.

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