Convergent hot cone process for thermoset molding

Details Convergent hot cone process for thermoset molding Convergent hot cone process for thermoset molding

1983-02-01

1984-10-23

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643286, 425543, 425549, B29F 100

Patent

active

044787804

ABSTRACT:
An inverted cone is disposed in a housing having a complementarily-shaped conical portion into which the cone is introduced. Means are provided for introducing thermoset plastic material to be heated, into the housing at the base end of the cone so that the material flows through the region defined between the cone and the housing. Means are provided for heating the region between the cone and the housing and for removing the heated plastic material from near the tip of the cone. There is also preferably provided a mixing chamber near the tip of the cone to ensure uniform thermal and mechanical mixture of the plastic material. The present invention provides uniform heating of the material being processed.

REFERENCES:
patent: 2658237 (1953-11-01), Cuppett
patent: 4370115 (1983-01-01), Miura

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