| 摘要 |
A compression molding process incorporates a reciprocating screw plasticator to reduce or eliminate problems associated with variations in the amount of time that a thermoplastic material is maintained in a plasticated state. The process includes providing a thermally controlled mold having a first section and a second section which together define a mold cavity, plasticating thermoplastic material in a reciprocating screw extruder, depositing a mass of plasticated thermoplastic material from a nozzle at the discharge end of the plasticator onto one of the sections of the mold, closing the mold sections together to shape the plasticated mass of material, cooling the thermoplastic material in the mold cavity to solidify a thermoplastic article, and removing the shaped article from the mold.
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