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    • 47. 发明专利
    • Method for solid phase extrusion of synthetic resin
    • 固相萃取合成树脂的方法
    • JPS61143112A
    • 1986-06-30
    • JP26451784
    • 1984-12-17
    • Agency Of Ind Science & TechnolSekisui Chem Co Ltd
    • NAKAYAMA KAZUOKANETSUNA HISAAKINAKAMURA EIKISANNOMIYA YOSHINARI
    • B29C45/00B29C47/10B29C47/54B29C47/80B29C47/82B29C55/30
    • B29C55/30B29C45/0003B29C47/0021B29C47/1027B29C47/1063B29C47/54B29C47/82B29C47/825B29C47/864
    • PURPOSE:To mold a continuous product, by pressing a melted resin into a space defined by a cylinder section, a ram forward end and a billet rear end, and cooling the melted resin on the die section side thereby solidifying it. CONSTITUTION:With a part 40a of a billet 40 that has been solid-phase-molded in preceding step left in a die section 20, a ram 30 is retracted. A melted resin is pressed into a space formed by a cylinder section 10, the forward end of the ram 30 and the rear end of the billet 40. Cooling water is flowed into a passage 13 to cool the melted resin in the cylinder section 10 so that the forward part of the melted resin becomes a solid state. During this cooling stage, the melted resin is pressed by the ram 30. As a result, the molded product can be prevented from cracking in the extrusion and also the dimensional accuracy can be prevented from lowering when the size decreases. The ram 30 is moved forward to extrude the part 40a of the billet 40. The ram 30 is stopped with part of the billet 50 left in the die section 20 and is then retracted again. This procedure is repeated to obtain a continuous product.
    • 目的:通过将熔融树脂压入由圆筒部,冲头前端和坯料后端所限定的空间中,使模具部侧的熔融树脂冷却,使其固化,来成型连续制品。 构成:通过在模具部20中留下的前一步骤中已经固相成型的坯料40的一部分40a,压头30缩回。 将熔融的树脂压入由缸部10,冲头30的前端和坯料40的后端形成的空间中。冷却水流入通道13以冷却缸部10中的熔融树脂,从而 熔融树脂的前部成为固态。 在该冷却阶段期间,熔融树脂被压头30挤压。结果,可以防止模制产品在挤出中破裂,并且当尺寸减小时可以防止尺寸精度降低。 柱塞30向前移动以挤出坯料40的部分40a。冲压机30停止,其中一部分坯料50留在模具部分20中,然后再次缩回。 重复该过程以获得连续的产物。