| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe joined body which can be joined to the side face of a metallic pipe while suppressing the axial thrust of a coupling pipe as much as possible. <P>SOLUTION: The pipe joined body is formed by performing the friction-welding of one end face 7 of the coupling pipe 4 having the diameter smaller than that of a metallic pipe 1 to a chamfered coupling joining face on a part of the side face of the metallic pipe 1 while pipe holes communicate with each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
