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    • 29. 发明专利
    • Molding method of thermoplastic plastic foamed sheet
    • 热塑性塑料片的成型方法
    • JPS58217329A
    • 1983-12-17
    • JP9955382
    • 1982-06-10
    • Hitachi Chem Co Ltd
    • ARAI TADAAKISUZUKI TADAO
    • B29C45/00B29C51/00B29C51/04B29C51/10B29C51/18B29C51/28B29C59/00B29C67/20
    • B29C51/10B29C51/002B29C51/04B29K2105/04
    • PURPOSE:To obtain a shape, on both the surface and the back thereof die-surface form is reproduced accurately and which is excellent in size accuracy, by vacuum-forming the resin foamed sheet by using female and male dies, which each have vacuum suction holes and constitute a cavity in the form of the shape on mold clamping. CONSTITUTION:The thermoplastic plastic foamed sheet (preferably, one of independent bubble structure) 1 is heated and softened by a heater 3, said foamed sheet 1 is pushed in up to the midway of the female die 2 by the bottom of the male die 4 while being sucked under vacuum from the suction holes 5 of the female die 2, and the foamed sheet 1 is fast stuck to the surface of the female die 2. The male screw 4 is further dropped to close both dies, and the aimed shape 7 is obtained through vacuum suction from the suction holes 6 of the male die 4. EFFECT:Both the surface and the back are smooth and fine.
    • 目的:为了获得形状,通过使用具有真空吸力的阴模和阳模来真空成形树脂发泡片,在其表面和背面上均可精确地再现模具表面形状并且尺寸精度优异 并且在模具夹紧中构成形状的空腔。 构成:热塑性塑料发泡片材(优选独立气泡结构体)1被加热器3加热软化,所述发泡片材1通过阳模4的底部推到阴模2的中途 同时在阴模2的吸入孔5的真空下吸入,发泡片1紧贴在阴模2的表面。外螺纹4进一步下降以封闭两个模,目标形状7 通过从阳模4的吸孔6的真空抽吸获得。效果:表面和背面均光滑且细。