| 摘要 |
<p>PURPOSE:To apply corrosion preventive treatment to an inner wall of a pipe, by a method wherein the inner wall of a main duct is coated with a synthetic resin tube into which a synthetic resin short pipe with a flange to which an adhesive is applied is inserted through an opening end of a branched duct and stuck to an inner wall surface of the duct. CONSTITUTION:An inner wall of a main duct 1 is coated with a tube 3 made of synthetic resin, a branched duct 2 is opened in the vicinity of a branch point and the tube 3 of a connecting opening part between the main duct 1 and the branch duct 2 is cut off by inserting a cutter through an opening end. A short pipe 50 having a flange 52, to which an adhesive is applied is inserted into the branched duct through the opening end of the branched duct, the flange is stuck to an inner surface side of the tube 3 of a branched part through a pressing unbrella type jig 80 and a cylindrical pipe part 51 is stuck to an inner wall surface of the branched duct.</p> |
