Heat treatment method for lost foam cast materials

Details Heat treatment method for lost foam cast materials Heat treatment method for lost foam cast materials

1995-04-17

1996-08-20

Batten, Jr., J. Reed

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148542, 164 761, B22C 904, C21D 900

Patent

active

055475213

ABSTRACT:
A plurality of lost foam cast materials that are integrally connected with a controlled spacing between the cast materials are heated to a predetermined temperature for a preset time to improve through hardness of the lost foam cast materials.

REFERENCES:
patent: 2899727 (1959-08-01), Misfeldt
patent: 3659323 (1972-05-01), Hachisu et al.
patent: 3842899 (1974-10-01), Kauser-Lienhard
patent: 4631092 (1986-12-01), Ruckle et al.
patent: 4874031 (1989-10-01), Janney
Foundry Trade Journal, vol. 159, No. 3312, Sep. 1985 Clegg, "Expanded-Polystyrene Moulding--a Status Report", pp. 177-180, 183, 184, 187.
Abstract of Japanese Patent Publication 63-281757 Published Nov. 18, 1988.
Abstract of U.S.S.R. Inventor's Certificate 1,616,78 Published Dec. 30, 1990.
Metals Handbook, Ninth Edition, vol. 15-Casting, 1988, p. 263.

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