| 摘要 |
PURPOSE:To eliminate work for previously stripping off the skin of a pipe and improve workability in terms of an electrofusion joint which contains a fusing heat means for fusing the end of the pipe by providing in addition a means for removing the outer periphery of the pipe by a preset thickness at the inside end of the pipe in which a resin pipe is to be inserted. CONSTITUTION:A pipe (P) has one end pressed into the inner frange 11 of a joint 10 to the extent of contact with it, At this time if a heater 19 for removing an oxidized layer is set ON, the pipe (P) is heated at the end to fuse and remove a skin (S) by a preset depth delta. In case that the pipe (P) is completely inserted into the joint 10, a pipe portion located in the joint has a beautiful face exposed and electrification of a fusing heater 15 allows the pipe (P) to be firmly stuck to the inner face of the joint 10. It is thus possible to perform prompt treatment at a field in laying and repairing gas pipes, etc. |
