FASTENING STRUCTURE AND FASTENING METHOD OF PIPE AND FLANGE MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a fastening structure and a fastening method of a pipe and a flange member which secures sealing performance, moreover, does not cause distortion or the like, can minimize a space necessary when performing an operation and also can reduce a cost.;SOLUTION: A fastening structure of a pipe 10 and a flange member 20 is a structure for fastening the flange member 20 on a top end part 12 of the pipe 10. The flange member 20 has an opening part 22 communicated with a passage 11 of the pipe 10, and an annular first holding part 24 and an annular second holding part 25 protrusively formed toward the inner side from a peripheral part 23 of the opening part 22. The top end part 12 of the pipe 10 is formed between the first holding part 24 and the second holding part 25 while the diameter is enlarged to the outer side, and by being held between the first holding part 24 and the second holding part 25, the top end part 12 of the pipe 10 is fastened to the peripheral part 23 of the opening part 22 of the flange member 20.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT