| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe material repairing method capable of saving time and trouble for adhering a seal member and moving a repairing frame material, improving work efficiency in repairing a pipe material, and smoothly moving the repairing frame material even if a stepped portion is provided on an inner wall surface of the pipe material. <P>SOLUTION: In this pipe material repairing method, a seal material is adhered to a repairing frame material capable of self-traveling. The repairing frame material is moved to a part to be repaired on an inner surface of the pipe material while being contracted, and the repairing frame material is expanded at that position to add the seal material on the part to be repaired on the inner surface of the pipe material. The seal material is adhered to a surface of the repairing frame material having a mount at al lower end, and the repairing frame material adhered with the seal material is moved to the part to be repaired on the inner surface of the pipe material while being contracted, the repairing frame material is expanded at that position to add the seal material on the part to be repaired on the inner surface of the pipe material. <P>COPYRIGHT: (C)2003,JPO</p> |
