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    • 6. 发明专利
    • Preparation of hollow formed body
    • 中空形成体的制备
    • JPS59178225A
    • 1984-10-09
    • JP5450883
    • 1983-03-30
    • Kyoraku Co Ltd
    • KOIKE YOSHIOHIGO SHIYUUJI
    • B29C65/00B29B11/10B29C49/00B29C49/04B29C49/36B29C49/42B29C49/48B29C49/50B29C49/72B29C57/10
    • B29C57/10B29C49/4817B29C49/72
    • PURPOSE:To smooth the surface of a blocked portion by a method wherein fluid is supplied into a parison, the inlet portion is blocked to make a hollow body and the blocked portion is compressed by a compression member. CONSTITUTION:A parison 12 of thermoplastic synthetic resin is brought into the centers of split molds 11, 11, part of a periphery containing both open parts of the parison is engaged and melted to make an expanded part 14. Then, the point of a fluid injecting nozzle 16 is attached close to an unhardened expanded part 14, the fluid is brought into the parison 12 melted by a mold 11 through a joint part 15 from said expanded part 14 to form a synthetic resin hollow body 1. Then, the expanded part 14 is separated from the hollow body 1 and the joint part 15 is blocked. The blocked part 5 of the blocked hollow formed body 1 is heated by a gas burner 22 and then the blocked part 5 is compressed by a compression member 23 and smoothed to obtain a closed hollow body.
    • 目的:通过将流体供应到型坯中的方法使堵塞部分的表面平滑化,使得入口部分被阻塞以形成中空体,并且阻塞部分被压缩构件压缩。 构成:将热塑性合成树脂的型坯12带入分割模具11,11的中心,将包含型坯的两个开放部分的周边的一部分接合并熔融以制成膨胀部分14.然后,流体点 注射喷嘴16靠近未硬化的膨胀部分14附近,流体通过来自所述膨胀部分14的接合部分15被模具11熔化的型坯12中,以形成合成树脂中空体1.然后,扩张部分 14与中空体1分离,接合部15被堵塞。 被堵塞的中空成形体1的被阻塞部5被气体燃烧器22加热,然后被压缩部件23压缩,并使其平滑化,得到封闭的中空体。