| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lined pipe in which stress concentration is prevented even if two opposite sides are not welded to absorb a dimensional tolerance when the bore is greater than a certain extent. <P>SOLUTION: In a lined pipe having a lining covering the inner circumferential face of a pipe and a cylindrical porous body embedded in this lining, two opposing sides of a rectangular porous plate that is to serve as a member of the porous body are formed in a comb shape and, when the cylindrical porous body is to be formed by rolling the rectangular porous plate, the teeth parts of the comb shaped part are so formed as to engage with each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
