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    • 5. 发明专利
    • PROCESS FOR LINING INSIDE SURFACE OF COMPLICATED PIPE LINE WITH BALL
    • JPH01171681A
    • 1989-07-06
    • JP32954687
    • 1987-12-28
    • KAMIYA AKIRA
    • KAMIYA AKIRA
    • B05C7/08B05D7/22
    • PURPOSE:To simplify and facilitate lining work by inserting plural numbers of ball wherein the diameter of each ball is made smaller by a specified value than an inside diameter of a pipe having an each different inside diameter. CONSTITUTION:An epoxy resin paint P is injected from a starting end part 1a of a large diameter pipe 1 and air pressurized to a necessary pressure is introduced. The paint P is penetrated to a certain degree and transported to the inside of the large diameter pipe 1. Then, plural numbers of small diameter ball 4 for coating the inside of the small diameter pipe are inserted into the large diameter pipe 1, and plural numbers of ball 3 having a larger diam. and having appropriate grooves 5 in random directions on the surface for coating the large diameter pipe, are inserted into the pipe. Injection of air from the starting end part 1a of the pipe is enabled by stopping the supply of air, and the air in the pipe is sucked with a specified pressure from a terminal opening 2a. Then, jet streams are formed in a space of the inside surface of the pipe wall between each outside diameter of the large diameter balls 3 and the large diameter pipe 1, and adhered paint P is flung up along the inside of the pipe, forming a paint layer P1. Thus, lining is performed securely.