Injection orientation blow molding method

Details Injection orientation blow molding method Injection orientation blow molding method

B - Operations, Transporting

29

C

18/531

B29C 49/64 (2006.01)

Patent

CA 2039488

A molding method for continuously carrying out the steps from injection molding of a synthetic resin preform to orientation blow molding thereof into a thin-wall hollow molded article, characterized in that releasing of the preform from the injection mold is carried out during the state where the shape thereof can be maintained by a skin layer produced in the surface by quick cooling and the state where internal cooling is not yet finished and the temperature is high, and orientation blow molding of the preform is carried out within a time till a surface temperature of the preform which rises by its own internal temperature reaches a peak temperature.

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