LINING JIG AND LINING METHOD FOR BRANCH PIPE

摘要

PURPOSE:To improve the working efficiency by heat curing rapidly an inner lining material inverted into a branch pipe. CONSTITUTION:A branc pipe lining jig 1 provided with a seal tube 2 and an expansion tube 3 with embedded heat developing body 9 connected with the rear end of the seal tube 2 is used. The rear end of the inner lining material 4 is connected with the opening of the seal tube 2 by a bonding agent of low softening point, and inverted and inserted into a branch pipe. The expansion tube 3 is expanded by a pressurized fluid and the inner lining material 4 is bonded with the inner face of the branch pipe. Power is applied to the heat developing body 9 in the expansion tube 3 to heat cure the thermosetting resin containing the inner lining material 4. After that, the lining jig is drawn out of the branch pipe.