Method for obtaining a thin Thermoplastic polymeric Thermoplastic Polymer improved, the improved method to obtain Thin obtained a envaseplastico molded and the Molded Plastic Packaging.

摘要

You get a thin Thermoplastic Polymer or a container of this material suitable for beer or Juice, for example,That is ahumedad gas impermeability and less shrinkage during the filling and Packaging pasteurization temperatures.According to the method of obtaining the packaging, unapreforma (11), Polyethylene terephthalate (PET), which has a Cylindrical body with a lid (13),A Screw mouth and a neck with wanna (19) is heated to soften the Pet.The Preform is introduced into a Mold (26) Party, whose Walls (27, 29) are heated to a temperature of between 150 and 177u00b0C.A Stretcher rod (35) is introduced in the Preform (11) to stretch the length preformaalcanza axilmente until the final product (49).Expands and Molded Preform against the mold Walls using compressed Air.The Air is blown and injected Molded Preform of the nitrogen secodentro (47) at a temperature lower than - 50C to Purge and cool The Molded Preform, keeping the pressure kpag 520,At least.The Preform Molded against the mold is maintained for a Predetermined time during which temper the internal and external surfaces delapreforma MoldedWhich is transformed into the final product. The nitrogen supply is cut, and the final product is released from the mold.