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    Process and device for hot gas welding of plastic sheets with electrically heated tubular gas flow conduit
    69.
    发明授权
    Process and device for hot gas welding of plastic sheets with electrically heated tubular gas flow conduit 失效
    具有电加热管状气流导管的塑料片热气焊接工艺和装置

    公开(公告)号：US6134387A

    公开(公告)日：2000-10-17

    申请号：US644162

    申请日：1996-05-10

    申请人： Ramon Toss

    发明人： Ramon Toss

    IPC分类号： B29C65/00 ,  B29C65/10 ,  F24H1/10 ,  F24H3/04

    CPC分类号： B29C66/80 ,  B29C65/10 ,  B29C66/40 ,  B29C66/91213 ,  B29C66/91231 ,  B29C66/91315 ,  B29C66/91317 ,  B29C66/91421 ,  B29C66/91431 ,  B29C66/91655 ,  F24H3/0405 ,  B29C66/81821 ,  B29C66/961 ,  F24H1/105

    摘要： A process and device are used to weld plastic sheets with hot gas. Conventionally for welding with hot gas, the gas was conveyed over an electrically heated body. However, temperature fluctuations occurred that were difficult to correct and the result was a relatively high power consumption. In order to make a precise temperature guidance with a favorable efficiency possible, the gas is blown through a tubular heat conductor (10) with outlet openings (16) in its circumference wall and against a plastic sheet, and the tube body (10) is heated by an electrical current that is controlled by at least one temperature sensor exposed to the temperature of the tube body and/or the hot gas. Preferably, the tube body (10) itself is used as a temperature sensor, while its resistance, which changes with the temperature, is used to control the current intensity.

    摘要翻译： 一种工艺和装置用于用热气焊接塑料片。 通常用于用热气体焊接，气体被输送到电加热体上。 然而，发生难以纠正的温度波动，结果是相对较高的功耗。 为了以可能的效率进行精确的温度引导，气体通过其周围壁上的出口（16）并与塑料片一起吹过管状导热体（10），管体（10）为 由暴露于管体和/或热气体的温度的至少一个温度传感器控制的电流加热。 优选地，管体（10）本身用作温度传感器，而其温度变化的电阻用于控制电流强度。