Process of making injection moldings and injection mold for carr

Details Process of making injection moldings and injection mold for carr Process of making injection moldings and injection mold for carr

1985-03-07

1988-03-22

Silbaugh, Jan H.

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

264 405, 264255, 264273, 2643288, 2643289, 26432811, 26432815, 26432816, B29C 4522

Patent

active

047327243

ABSTRACT:
An injection mold comprises two or more mold sections, which enclose a cavity for molding an injection-molded part. The mold cavity is adapted to be supplied with the molding material through at least one entrance opening. The injection mold is maintained at a temperature at which the molding material is set. Said molding material is injected in a liquid state at a greatly differing temperature. To simplify the injection molding operation, to avoid damage by the removal of sprues, and to accelerate the manufacture,the molding material is injected through the entrance opening directly into the cavity by means of at least one injection nozzle. The injection mold comprises an injection nozzle having a nozzle tip which fits the entrance opening.

REFERENCES:
patent: 3052925 (1962-09-01), Bronnenkant et al.
patent: 3270115 (1966-08-01), Novel
patent: 3707265 (1972-12-01), Seres
patent: 3840312 (1974-10-01), Paulson et al.
patent: 4442055 (1984-04-01), Oelsch et al.

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