Method for preheating molds for aluminum castings

Details Method for preheating molds for aluminum castings Method for preheating molds for aluminum castings

1996-10-28

1999-07-20

Batten, Jr., J. Reed

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164121, 164122, 1641514, 1641556, 164457, B22D 2704, B22D 3700, B22D 4600

Patent

active

059244704

ABSTRACT:
Aluminum parts are cast in a plurality of permanent-type or semi-permanent-type molds, the molds being preheated to a predetermined temperature before starting the casting operation, and being provided with temperature sensors and a logic device which produces a blocking signal for the casting system when the temperature of the mold is below a predetermined casting temperature in order to minimize the number of scrap castings due to uneven or low mold temperature. Hot gases are created and flowed through the interior of the mold, by a burner and hood shaped to fit over at least some mold openings.

REFERENCES:
patent: 361198 (1887-04-01), Wheeler
patent: 1336234 (1920-04-01), Jamison
patent: 2892224 (1959-06-01), Bauer
patent: 3620294 (1971-11-01), Hetzel et al.
patent: 3633648 (1972-01-01), Barrow et al.
patent: 4574867 (1986-03-01), Thompson
patent: 5125448 (1992-06-01), Jensen
Foundry Technology, American Society for Metals, pp. 42, 44, 45, 1982.
Metals Handbook, 9th Edition, vol. 15 Casting, pp. 280-283, 1988.
Abstract of Japanese Patent Publication 56-19967 Published Feb. 25, 1981.
Abstract of Japanese Patent Publication 57-124566 Published Aug. 3, 1982.
Abstract of Japanese Patent Publication 2-160159 Published Jun. 20, 1990.

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