| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To simplify operation process and to reduce application cost in the case that an uncured resin is applied on a pipe line formed by connecting large sized pipe to a small sized pipe. <P>SOLUTION: In a method for lining the inside of a pipe to apply the uncured resin 2 on the inside surface of the pipe by moving a pig 3 for lining moved by a fluid pressure along the pile line D formed by concentrically connecting the large-sized pipe A to the mall-sized pipe B, the pig for lining which is formed by separably connecting a large sized pig body 4 capable of applying the uncured resin 2 on the large sized pipe to a small sized pig body 5 capable of applying on the small sized pipe is fitted to the inside of the large sized pipe so that the small sized pig body is positioned in the small-sized pipe side, is moved from the large-sized pipe side toward the small-sized pipe to apply the uncured resin on the large sized pipe, and when the large sized pig body is stopped at the connecting part C of the large-sized pipe to the small-sized pipe, the small-sized pig body is separated from the large-sized pig body by the fluid pressure in a state of the stoppage of the large sized pig body and the fluid pressure is introduced between the large-sized pig body and the small- sized pig body to apply the uncured resin on the small-sized pipe with the small sized pig body. <P>COPYRIGHT: (C)2003,JPO</p> |
