| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin piping hole making method, heating jig and piping repairing method which leads to reduction in time and cost in work without damage to cables and the like inserted into the piping when making a hole to a piping. SOLUTION: A marking 42 is applied on the surface of a resin piping 12. An electric heating plate 14, a heat insulator 16 and a metallic plate 18 are laminated in such a way as to cover the marking 42, which are fastened on the resin piping 12 with a belt. The resin piping 12 is heated by the electric heating plate 14 to be softened, thereafter releasing the belt fastening and separating the electric heating plate 14 from the resin piping 12. In this manner, after softening the range of the marking 42 by the application of heat, the range of marking 42 is cut out to make a hole.</p> |
