Method and apparatus for injection molding

Details Method and apparatus for injection molding Method and apparatus for injection molding

B - Operations, Transporting

29

C

18/680

B29C 45/00 (2006.01) B29C 45/27 (2006.01) B29C 45/34 (2006.01) B29C 45/36 (2006.01)

Patent

CA 2015172

ABSTRACT OF THE DISCLOSURE The method and apparatus includes an injection molding assembly including a mold, a core and a mold cavity therebetween wherein said mold cavity has a base, a peripheral area of said base and a central area of said base, at least two injection gates for injecting plastic material into said mold cavity situated adjacent the peripheral area of the mold cavity in a substantially balanced fashion, means for injecting plastic material through the injection gates whereby molten plastic advances from the injection gates in the mold cavity to force gas in advance of the plastic and to stabilize the core, and means for venting the gas from the mold cavity.

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