Injection molding method and apparatus

Details Injection molding method and apparatus Injection molding method and apparatus

1976-09-20

1978-05-16

Husar, Francis S.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

264329, 425543, 425547, B29F 108

Patent

active

040899268

ABSTRACT:
An improved injection molding method and apparatus for use with a press that is movable between open and closed positions is disclosed which involves the utilization of a mechanical temperature control assembly which includes a laminated plate assembly comprising a plurality of plates movable into and out of the contact with the usual cavity containing mold sections and which includes heating and insulation components so that when the plate assembly is interposed in contact with the cavity containing molds within the bite of the press, the material supply source is insulated from the high molding temperature, thereby avoiding pre-mature cure of the material contained in the supply source while insuring complete cure of the cavity material.

REFERENCES:
patent: 2300759 (1942-11-01), Amigo
patent: 3671624 (1972-06-01), Antalek
patent: 3748075 (1973-07-01), Taylor
patent: 3776998 (1973-12-01), Church
patent: 3819312 (1974-06-01), Arpajian
patent: 3836306 (1974-09-01), Pasch et al.
patent: 3859024 (1975-01-01), Pasch et al.
patent: 3876356 (1975-04-01), Fazekas
patent: 3961014 (1976-06-01), Pasch

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