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    Method for heating and blow molding plaster parisons
    1.
    发明授权
    Method for heating and blow molding plaster parisons 失效
    用于加热和吹塑塑料浆的方法

    公开(公告)号：US4117050A

    公开(公告)日：1978-09-26

    申请号：US728828

    申请日：1976-10-01

    申请人： Adolf Appel ,  Claus Horwege ,  Wolfgang Reymann ,  Otto Rosenkranz

    发明人： Adolf Appel ,  Claus Horwege ,  Wolfgang Reymann ,  Otto Rosenkranz

    IPC分类号： B29C35/08 ,  B29C49/08 ,  B29C49/64 ,  B29C49/68 ,  B29C65/00 ,  B29C17/07

    CPC分类号： B29C49/6418 ,  B29K2067/00

    摘要： A method for blow molding containers and the like articles from thermoplastic parisons. The parisons are heated in two stages, i.e., in a pre-heating oven to a uniform temperature less than the blow molding temperature and by infra red radiation to a final blow molding temperature which, preferably, is non-uniform along the length of the parison. The non-uniform heating is accomplished by moving the parison axially through an annular infra red radiator at varying rates of speed. Since the degree of heating is directly proportional to the time of exposure to the radiation, a variable temperature profile can be imparted to the parison by means of a simple speed program. Such a variable temperature profile results in controlled wall thickness distribution during blow molding, and the final container is of enhanced strength and of lower weight.

    Process for heating a blow molding preform
    2.
    发明授权
    Process for heating a blow molding preform 失效
    用于加热吹塑成型预制件的方法

    公开(公告)号：US5312572A

    公开(公告)日：1994-05-17

    申请号：US913583

    申请日：1992-07-14

    申请人： Claus Horwege

    发明人： Claus Horwege

    IPC分类号： B29B11/06 ,  B29B11/14 ,  B29C49/06 ,  B29C49/64 ,  B29L22/00 ,  B29C35/08

    CPC分类号： B29C45/372 ,  B29C49/6445 ,  B29C49/06 ,  B29K2105/253

    摘要： 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.

    摘要翻译： 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。

    Process for producing hollow bodies from thermoplastic material
    3.
    发明授权
    Process for producing hollow bodies from thermoplastic material 失效
    从热塑性材料制造中空体的方法

    公开(公告)号：US4847032A

    公开(公告)日：1989-07-11

    申请号：US246889

    申请日：1988-09-15

    申请人： Peter Albrecht ,  Adolf Appel ,  Karl-Heinz Balkau ,  Edward Clar ,  Claus Horwege ,  Wolfgang Reymann ,  Klaus Vogel ,  Walter Wiedenfeld

    发明人： Peter Albrecht ,  Adolf Appel ,  Karl-Heinz Balkau ,  Edward Clar ,  Claus Horwege ,  Wolfgang Reymann ,  Klaus Vogel ,  Walter Wiedenfeld

    IPC分类号： B29C51/08 ,  B29C51/00 ,  B29C55/00 ,  B29C55/30 ,  B29L22/00

    CPC分类号： B29C55/30

    摘要： A process for producing hollow bodies from oriented thermoplastic material wherein a cylindrical portion of a heated hollow preform which has a bottom thereon is subjected to stretching at a starting temperature which is below the vitreous transition temperature of the thermoplastic material, with the wall thickness of the preform being reduced in the stretching operation. Prior to the stretching operation the preform is heated in the portion in which the stretching effect begins, to a temperature higher than in the portion adjoining same. Stretching is preferably effected along the axis of the preform at different rates such that in the portion of the preform at which stretching begins, stretching is effected at a lower rate than in the portion adjoining same in the stretching direction.

    摘要翻译： 一种从取向热塑性材料制造中空体的方法，其中具有底部的加热中空预成型件的圆柱形部分在低于热塑性材料的玻璃化转变温度的起始温度下进行拉伸，其中壁厚度 预成型件在拉伸操作中减少。 在拉伸操作之前，预成型件在拉伸效果开始的部分被加热至高于相邻部分的温度。 拉伸优选以不同的速度沿着预成型体的轴线进行，使得在预成型件开始拉伸的部分中，以比在拉伸方向相邻的部分更低的速率进行拉伸。