Method for finish forming thermoplastic surfaces

Details Method for finish forming thermoplastic surfaces Method for finish forming thermoplastic surfaces

1981-05-11

1983-03-22

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264319, 264338, B29C 1300

Patent

active

043775497

ABSTRACT:
A method of finish forming thermoplastic surfaces wherein a die having a finishing surface complementary in contour to and conforming in surface finish to the selected contour and surface finish of the thermoplastic surface is heated to a temperature between the softening and melting temperatures of the thermoplastic. The finishing surface of the die is pressed against the thermoplastic surface so that the thermoplastic is softened and flows to conform precisely to the contour and surface finish of the finishing surface of the die.

REFERENCES:
patent: 3481755 (1969-12-01), Gould
patent: 3947539 (1976-03-01), Lane
patent: 4073853 (1978-02-01), Chestnov
patent: 4102975 (1978-07-01), Doerer
patent: 4175106 (1979-11-01), Clarke et al.
patent: 4304751 (1981-12-01), Li et al.
patent: 4312672 (1982-01-01), Blahak et al.

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