Method for manufacturing thermoplastic resin racks

Details Method for manufacturing thermoplastic resin racks Method for manufacturing thermoplastic resin racks

1988-12-27

1990-08-21

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264293, B29D 1500, B29C 5904

Patent

active

049504428

ABSTRACT:
A rack of a thermoplastic resin is produced by heating a rod of a thermoplastic resin so that the temperature of at least the surface of said rod reaches a level within a range expressed by the equation, ##EQU1## (wherein T is a melting point of a resin forming a matrix for said rod), and thereafter forming a rack in one or both surfaces of said rod by a toothed roller and a grooved guide roller which are paired with each other, or a pair of opposed toothed rollers.

REFERENCES:
patent: 3519517 (1970-07-01), Dench
patent: 4261940 (1981-04-01), Bussey, Jr.
patent: 4395298 (1983-07-01), Wetzel et al.
patent: 4788021 (1988-11-01), Griffith

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