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    • 1. 发明申请
    • INJECTION MOLDING APPARATUS AND METHOD OF MAKING FOAMED INJECTION MOLDED PRODUCT
    • 注射成型设备和制造泡沫注射成型产品的方法
    • WO2013112783A1
    • 2013-08-01
    • PCT/US2013/023053
    • 2013-01-25
    • AINE, Kevin Bradley
    • AINE, Kevin BradleyVEREECKEN, David
    • B29C45/17B29C44/10
    • B29C45/1703B29C44/105B29C45/77B29K2023/00
    • A method and apparatus for injection molding a foamed product. A short shot of formable resin is injected into a cavity (124) defined by respective inner surfaces (134,136) of a plurality of molding plates (120,122) at an amount less than a volume of the cavity (124), the resin comprising a chemical foaming agent. The injected resin is allowed to foam for a predetermined period of time, during which the injected foamable resin foams and expands to substantially fill the cavity (124) and a portion of an outer surface of the foamable resin contacts the respective inner surfaces (134,136) of the molding plates (120,122). Pressurized gas is injected into the cavity (124) after the predetermined time has elapsed to urge the skinned outer surface of the foamed resin against the inner surfaces (134,136) of the molding plates (120,122).
    • 一种用于注射成型发泡产品的方法和装置。 将可成形树脂的短射程注入到以小于空腔(124)的体积的量的多个模板(120,122)的相应内表面(134,136)限定的空腔(124)中,所述树脂包含化学 发泡剂。 允许注入的树脂泡沫预定的时间,在此期间,注射的可发泡树脂发泡并膨胀以基本上填充空腔(124),并且可发泡树脂的外表面的一部分与相应的内表面(134,136)接触, 的模板(120,122)。 在经过预定时间之后,将加压气体注入空腔(124),以将发泡树脂的表皮外表面推压在模制板(120,122)的内表面(134,136)上。