Molding process and apparatus utilizing memory metal alloy sprin

Details Molding process and apparatus utilizing memory metal alloy sprin Molding process and apparatus utilizing memory metal alloy sprin

1985-09-24

1987-10-20

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

100 93P, 264320, 264324, 264325, 264334, 425384, 425395, 425398, 425407, 425419, B29C 3302, B30B 100, B31F 100, D21J 312

Patent

active

047012935

ABSTRACT:
A number of distributed springs, fabricated from memory metal alloy, are connected to a die in a molding assembly. When heat is applied to the springs, they expand with sufficient force to mold a resin-impregnated composite material over a contoured mold form. The heat may be simultaneously applied to the composite material for achieving curing while molding occurs. Upon removal of the heat, the springs contract thereby allowing removal of a finished molded product.

REFERENCES:
patent: 2585818 (1952-02-01), Moravec
patent: 2874751 (1959-02-01), Norton
patent: 2907937 (1959-10-01), Apgar et al.
patent: 2990583 (1961-07-01), Barbera
patent: 3287486 (1966-11-01), Jurgeleit et al.
patent: 3748108 (1973-07-01), Rothwarf et al.

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