| 摘要 |
Pipes of a weldable polymer material are welded with a muff of a weldable polymer material. The method includes placing the muff with an overlap over the ends of the pipes, welding the muff to the ends of the pipes through placement of an electrically conducting band that is permeable to molten plastic between the pipe and the muff, connecting a power supply to the band through feed cables, and supplying an electrical current in order to heat the band and the surrounding polymer material such that they melt together around the band in order to form a weld. The temperature of the weld is calculated through adding the initial ambient temperature of the weld and the increase in temperature of the band. |
