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    • 1. 发明授权
    • Process for injection molding and apparatus therefor
    • 注射成型方法及其设备
    • US5478520A
    • 1995-12-26
    • US321476
    • 1994-10-11
    • Masayoshi KasaiHideo KurodaYukio TamuraYoshio ShikaseKouji Kubota
    • Masayoshi KasaiHideo KurodaYukio TamuraYoshio ShikaseKouji Kubota
    • B29C45/17B29C45/20B29C45/56B29C45/72B29C45/77B29C45/78B29C45/23
    • B29C45/17B29C45/20B29C45/561B29C45/72B29C45/77B29C45/78B29C2045/0098B29C2045/5615
    • A process and apparatus for effecting injection molding of plastic resin products on an injection molding apparatus including a metal mold composed of a slidable mold element and a fixed mold element defining together the mold cavity, an actuator for sliding the slidable mold element and an injection nozzle for adjusting the nozzle flow path section, which comprises a first molding step of injecting a molten resin into the mold cavity which has been preset by the slidable mold element so as to include a post-compression margin to be compressed afterwards in a second molding step, to effect the injection under a reduced molding pressure, while causing a temperature elevation and, thus, a viscosity reduction of the molten resin, until the mold cavity has been filled up, and a second molding step of compressing the resin so charged in the mold cavity by operating the slidable mold element to compress the charged resin to compensate the post-compression margin, so as to allow an effective pressing force to be imposed onto the charged resin within the mold cavity also after the gate has been sealed.
    • 一种用于在塑料树脂产品上进行注射成型的方法和装置,该注射成型装置包括由可滑动的模具元件和限定模具腔的模具元件组成的金属模具,用于滑动可滑动模具元件的致动器和注射喷嘴 用于调节喷嘴流路部分,其包括将熔融树脂注入到由可滑动模具元件预设的模腔中的第一模制步骤,以便在第二模制步骤中包括后压缩边缘以被压缩 在降低的成型压力下进行注射,同时引起熔融树脂的温度升高,从而降低熔融树脂,直到模腔被填满,并且第二模制步骤将如此填充的树脂压缩 通过操作可滑动模具元件来压缩带电树脂以补偿后压缩边缘,从而允许有效的模腔 也可以在门被密封之后施加在模腔内的带电树脂上的压力。