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    • 6. 发明授权
    • Process for heating a blow molding preform
    • 用于加热吹塑成型预制件的方法
    • US5312572A
    • 1994-05-17
    • US913583
    • 1992-07-14
    • Claus Horwege
    • Claus Horwege
    • B29B11/06B29B11/14B29C49/06B29C49/64B29L22/00B29C35/08
    • B29C45/372B29C49/6445B29C49/06B29K2105/253
    • A preform of a thermoplastic material, especially a material which is orientable during blow forming, has an opening region, a closed bottom as well as walls connecting the bottom with the opening region. In the region of at least a part of the surface demarcating the preform a texturing enlarging the surface is provided, which has a low profile depth relative to the wall thickness of the preform. A process for heating a preform of a thermoplastic material is also disclosed which includes texturing a portion of the surface of the preform to enlarge the surface area thereof whereby the time required to heat the preform to a desired temperature suitable for blow molding is reduced. The preform is also rotated as it is moved past a heating device and the heating device is controlled such that the heating device combination with the texturing provides a desired temperature profile rendering the preform suitable for blow molding.
    • 热塑性材料的预制件,特别是在吹塑成形期间可取向的材料,具有开口区域,封闭底部以及连接底部与开口区域的壁。 在至少部分表面划定预成型件的区域中,提供了增加表面的纹理化,其相对于预成型件的壁厚具有低的轮廓深度。 还公开了一种用于加热热塑性材料的预成型件的方法,其包括使预成型件的表面的一部分变形以扩大其表面积,由此减少将预成型件加热到适合于吹塑成型的期望温度所需的时间。 预成型件在其移动通过加热装置时也旋转,并且加热装置被控制,使得加热装置与纹理组合提供期望的温度分布,使预成型件适合于吹塑成型。