| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a metal pipe free from any excessive stress concentration in a restriction part such as a flange fitting part, even when the metal pipe with both ends thereof restricted is deformed. SOLUTION: In the metal pipe 10 which is fitted with both ends thereof restricted by members, and deformed by the displacement between the members to generate the stress, the wall thickness in the vicinity of a center part in the longitudinal direction of the metal pipe 10 is thinner than that of the other portions, a thin-walled portion 12 is elastically deformed, and a bellows 15 is formed in this thin-walled portion.</p> |
