Method for injection molding

Details Method for injection molding Method for injection molding

B - Operations, Transporting

29

C

B29C 45/00 (2006.01) B29C 45/72 (2006.01)

Patent

CA 2042947

METHOD FOR INJECTION MOLDING Abstract of the Disclosure A process for producing an injection molded product includes the step of introducing an amount of a molten thermoplastic sufficient for the preparation of the injection molded product into a mold cavity. A quantity of heated gas is introduced into the mold cavity, the molten thermoplastic in the mold cavity thereby forming a gas cavity in the molten thermoplastic. The heated gas is then vented from the gas cavity and a cooling gas is introduced into the gas cavity. The injection molded product is cooled and then the cooling gas is vented from the gas cavity.

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