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    Apparatus employing integral dielectric heater for roll forming thermoplastic material
    1.
    发明授权
    Apparatus employing integral dielectric heater for roll forming thermoplastic material 失效
    采用整体电介质加热器的成型热塑性材料的装置

    公开(公告)号：US4943224A

    公开(公告)日：1990-07-24

    申请号：US308495

    申请日：1989-02-10

    申请人： Herman F. Nied ,  Louis P. Inzinna

    发明人： Herman F. Nied ,  Louis P. Inzinna

    IPC分类号： B29C33/08 ,  B29C35/12 ,  B29C53/04 ,  B29C65/04 ,  H05B6/56

    CPC分类号： B29C66/83413 ,  B29C33/085 ,  B29C53/043 ,  B29C65/04 ,  B29C66/81871 ,  H05B6/56 ,  B29C35/12

    摘要： An apparatus for roll forming of thermoplastic material is provided which employs a pair of rollers having forming surfaces thereon, the pair of rollers defining a gap through which the thermoplastic material is to be passed during the forming operation, the thermoplastic material being dielectrically heated to a softening temperature as it passes between the rollers by a radio frequency electromagnetic field produced between the rollers by activating a radio frequency generator or oscillator which is electrically connected to one of the rollers, the rollers each having conductive portions between which the electromagnetic field is produced.

    摘要翻译： 提供了一种用于热塑性材料的辊轧成型的设备，其采用一对在其上具有成形表面的辊，该对辊在成形操作期间限定出热塑性材料将通过的间隙，热塑性材料被介电加热到 软化温度在辊之间通过在辊之间产生的射频电磁场通过激活与其中一个辊电连接的射频发生器或振荡器而在辊之间通过，每个辊具有产生电磁场的导电部分。