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    • 3. 发明授权
    • Molding apparatus for producing molded resin products
    • 用于生产模制树脂产品的成型设备
    • US5948446A
    • 1999-09-07
    • US229192
    • 1999-01-13
    • Yasunori Hori
    • Yasunori Hori
    • B29C44/10B29C45/17B29C45/16
    • B29C44/105B29C45/1704B29C45/1732
    • A molded resin product can be produced without shrinkage on the surface by providing a hollow part and foam cells therein. Before molten resin containing a foaming gas is introduced into a cavity between molds, the cavity is preliminarily filled with a gas with pressure high enough to prevent the foaming gas from beginning to foam or expand. While the molten resin is injected into the cavity or after its injection is over, another high-pressure gas is injected through at least one gas injection nozzles into the resin where a hollow part is desired. As the nozzle is retracted from the cavity, the high-pressure gas is removed from the cavity, allowing the foaming gas to begin to foam and expand, forming a hollow part and foam cells inside the molded product.
    • 通过在其中提供中空部分和泡沫细胞,可以在表面上产生不收缩的模制树脂产品。 在将含有发泡气体的熔融树脂引入模具之间的空腔之前,预先填充压力足够高的气体,以防止发泡气体开始发泡或膨胀。 当熔融树脂注入空腔中或注入结束之后,另外一个高压气体通过至少一个气体注入喷嘴注入到需要中空部分的树脂中。 当喷嘴从腔体缩回时,高压气体从空腔中移出,允许发泡气体开始发泡和膨胀,在模制产品内形成中空部分和泡沫细胞。
    • 4. 发明授权
    • Method of producing molded resin product
    • 生产模制树脂产品的方法
    • US5900198A
    • 1999-05-04
    • US966881
    • 1997-11-10
    • Yasunori Hori
    • Yasunori Hori
    • B29C44/10B29C45/17B29C44/02
    • B29C44/105B29C45/1704B29C45/1732
    • A molded resin product can be produced without shrinkage on the surface by providing a hollow part and foam cells therein. Before molten resin containing a foaming gas is introduced into a cavity between molds, the cavity is preliminarily filled with a gas with pressure high enough to prevent the foaming gas from beginning to foam or expand. While the molten resin is injected into the cavity or after its injection is over, another high-pressure gas is injected through at least one gas injection nozzles into the resin where a hollow part is desired. As the nozzle is retracted from the cavity, the high-pressure gas is removed from the cavity, allowing the foaming gas to begin to foam and expand, forming a hollow part and foam cells inside the molded product.
    • 通过在其中提供中空部分和泡沫细胞,可以在表面上产生不收缩的模制树脂产品。 在将含有发泡气体的熔融树脂引入模具之间的空腔之前,预先填充压力足够高的气体,以防止发泡气体开始发泡或膨胀。 当熔融树脂注入空腔中或注入结束之后,另外一个高压气体通过至少一个气体注入喷嘴注入到需要中空部分的树脂中。 当喷嘴从腔体缩回时,高压气体从空腔中移出,允许发泡气体开始发泡和膨胀,在模制产品内形成中空部分和泡沫细胞。