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    • 4. 发明授权
    • Method and apparatus for producing a blow molded article
    • 用于制造吹塑制品的方法和设备
    • US06303071B1
    • 2001-10-16
    • US09147294
    • 1999-04-02
    • Minoru SugawaraKatsuhiko TadaTomoyuki ObaraKoki Hirano
    • Minoru SugawaraKatsuhiko TadaTomoyuki ObaraKoki Hirano
    • B29C4960
    • B29C49/4823B29C33/10B29C49/04B29C49/041B29C49/60B29C49/62B29C49/66B29C2049/4608B29C2049/4626B29C2049/4641B29C2049/4676B29C2049/609B29C2049/6623B29C2049/6646B29K2023/12B29L2031/3058
    • Provided is a method for producing blow moldings having a relatively large size through blow molding by use of a simple facility. The method including the steps of feeding a melt parison of crystalline resin into the space between molds, clamping the molds, blowing a pressurized fluid into the interior of the parison so as to cause the parison to be into close contact with the inner surfaces of the molds and to solidify the parison, wherein, while the parison and the mold inner surfaces are in close contact, the temperature of inner surfaces of the molds is maintained at a temperature from a temperature 10° C. lower than the crystallization temperature of the crystalline resin to the melting point of the resin, and the parison is removed from the molds after the parison is cooled through introduction thereinto or discharge therefrom, during or after blowing-in of the pressurized fluid, of a cooling medium not higher than room temperature. An apparatus comprises a blow molding machine; a forming mold which is used in combination with the blow molding machine for producing a blow molding, the forming mold having degassing pores having a diameter of 100 &mgr;m or less in the surface of the mold at intervals (a pitch) of 50 mm or less; and means for introducing and discharging a cooling medium into or from a parison formed through the mold.
    • 提供了一种通过使用简单的设备通过吹塑成型生产具有相对较大尺寸的吹塑制品的方法。 该方法包括以下步骤:将晶体树脂的熔融型坯进料到模具之间的空间中,夹紧模具,将加压流体吹入型坯的内部,以使型坯与该型坯的内表面紧密接触 模制并固化型坯,其中当型坯和模具内表面紧密接触时,模具的内表面的温度保持在比结晶温度低10℃的温度 树脂到树脂的熔点,并且在型坯在不高于室温的冷却介质中,在加压流体吹入之后或之后,通过引入或冷却型坯而将型坯从模具中除去。 一种装置包括吹塑机; 与吹塑机组合使用以形成吹塑成型的成形模具,成形模具的模具表面的直径为100μm以下的脱气孔的间隔(间距)为50mm以下 ; 以及用于将冷却介质引入和排出到通过模具形成的型坯中的装置。