| 摘要 |
<P>PROBLEM TO BE SOLVED: To manufacture a high-quality pipe-lining material by a simple method by uniformly and efficiently heat-fusing a tube to a tubular resin absorbent material. <P>SOLUTION: The tubular resin absorbent material 10 is inserted into the tube 11, expanded in a columnar shape, and brought into close contact with the internal peripheral surface of the tube. A heater 20 is wound in close contact with the external peripheral surface of the tube thus expanded and the tubular resin absorbent material. The tube and the tubular resin absorbent material are heated by energizing the heater, and the tube is thereby heat-fused to the tubular resin absorbent material. By such a method, a mechanism for moving the tube and the tubular resin absorbent material is not required. In addition, since the non-uniformity of heating does not occur, the tube can be uniformly heat-fused to the tubular resin absorbent material, thereby enabling a high-quality pipe-lining material to be manufactured. <P>COPYRIGHT: (C)2010,JPO&INPIT |
