METHOD FOR BUTT WELDING CROSS-LINKED POLYETHYLENE PIPES (PE-X PIPES)
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机译:对接焊接交联聚乙烯管材(PE-X管材)的方法
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摘要
The invention relates to a method for butt welding cross-linked polyethylene pipes in order to use these pipes in industrial and underground pipeline construction. The pipe faces are spatially melted on using a serrated heating element at a temperature 420° C. but 450° C. with a warming up time of greater than sixty seconds such that enlarged and serrated pipe faces are produced whose integral melt layers join during the joining process while under a welding pressure of 0.1 to 0.4 N/mm2.
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机译:本发明涉及一种对接交联聚乙烯管以便在工业和地下管道施工中使用这些管的方法。使用锯齿状加热元件在> 420°C但<450°C的温度下对管子表面进行空间熔化,预热时间大于六十秒,从而产生扩大的和锯齿状的管子表面,它们的整体熔体层结合在一起在连接过程中,焊接压力为0.1到0.4 N / mm2。
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