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Method and device for determining the heating condition of a part made of thermoplastic material and connecting piece for welding plastic parts
Method and device for determining the heating condition of a part made of thermoplastic material and connecting piece for welding plastic parts
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机译:确定热塑性材料制成的零件的加热条件的方法和装置以及用于焊接塑料零件的连接件
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摘要
The invention relates to a connection component equipped with an electrical resistor for the welding of elements made of heat-fusing plastic. According to the invention, the resistor takes the form of a single wire coated with an electrically insulating layer and having points of intersection, the coating layer fusing at a temperature between the fusion temperature of the components to be joined together and their temperature of thermal damage, so that short-circuits are generated on the wire and so that the stopping of the supply of current to the latter is commanded. The invention is used particularly for the thermal welding of polyethylene pipes used in the gas industry.
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