INTERNAL LINING METHOD OF STEEL PIPE

摘要

PURPOSE:To form quickly and continuously a lining layer on the inside surface of a pipe by positioning and moving a feed pipe which drops a lining material from the top end into the heated pipe. CONSTITUTION:A pipe 1 to be lined is preliminarily heated to a substantial temp. A feed pipe 6 which drops a lining material at a uniform feed rate is inserted into the pipe 1 from the top end thereof and positioned therein. While the pipe 1 is rotated, the pipe 6 is moved from one end to th other end of the pipe to be lined 1. The inside surface of the pipe is thus quickly and continuously lined.