| 摘要 |
<p>PURPOSE:To perform easily lining of the inside of a pipe by economical facilities, by a method wherein a conductive and expandable hollow body is pierced through within a thermal recovery tube and the thermal recovery tube is recovered through heating by heating the conductive and expandable hollow body through electrification so that an external circumferential part of the thermal recovery tube abuts against the inside of a pipe. CONSTITUTION:A conductive and expandable hollow body is pressurized and expanded by injecting, for example, air through a pressure control instrument 7 and pressure supply device connected with the pressure control instrument 7, and the conductive and expandable hollow body 4 is electrified and heated through an electrification terminal 5 and electric power source connected with electrification terminal 5. When the conductive and expandable hollow body 4 is pressurized and expanded, it becomes that an adhesive layer 3 of an external circumferential part of a thermal recovery tube 2 is caused to adhere to the inside of a pipe 1. The thermal recovery tube 2 is thermally recovered through electrification and heating of the conductive and expandable hollow body 4. In this instance, pressure and a temperature of the conductive and expandable hollow body 4 are set up appropriately and held for a necessary period of time so that the thermal recovery tube 2 adheres strongly to the inside of the pipe 1 with uniform force, the inside of the pipe 1 is lined with the thermal recovery tube 2.</p> |
