AN ANTICORROSION LINING METHOD FOR THE INSIDE OF THE WELDED PIPE BY INJECTION OF ANTICORROSION EPOXY PAINT

摘要

The invention uses a method of injecting the epoxy resin solution in the non-coating portion of the weld joint inside the tube after the welding joining the inner and outer steel pipe when connecting the pipe to the chapter lodging steel pipe for water works as a method for the anti-corrosive lining. More specifically, the water works lodging section, when a steel pipe connecting pipe plane end commonly used (plain end), the bevel end (bevel end), the bell end (bell end) steel pipe the inside and outside of the steel pipe by welding the bonding method, after a connection welding pipe US coating (未 塗裝) release (離 形) that the anti-corrosive lining of the portion not attached to the epoxy resin in the lining by injection of solventless epoxy coating fluid within the rubber ring (hereinafter referred to as a rubber ring) inside the tube It is secured in close contact with the method of filling the injection solvent-free epoxy anticorrosive paint in a space created after the steel pipe and the weld joint area and to separate off a rubber ring is then cured epoxy coating liquid to form a complete anti-corrosive lining film.; Water works lodging section steel tube for one length method, precise construction of the conventional 6m degree or anti-corrosive paint job builder hand (手 作業) of the tube a duct inside the weld joint to the steel tubes welded to a dark and narrow as Cave junction this is not suitable environment the disadvantage of shortening the life of the pipe due to corrosion of the pipe inside the water flow after the pipe occurs.; The present invention is by implanting process solvent-free epoxy coating liquid was capable of removing the defective factor according to the causes of defects and the tube inside of the working environment due to the hand of the builder in a liquid state completely eliminate the gap that may lead to corrosion containment and will therefore allow a separation to thereby separate rubber ring can be made completely the way of the steel pipe weld joint according to maximize the life of the water works field Uniform steel pipe after full cure.