| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe branching structure between a perforated pipe and each of branch pipes to be connected to holes of the perforated pipe. <P>SOLUTION: The pipe branching structure comprises the perforated pipe 1A having two holes 10b, 10c partitioned with a partition wall 1a and the plurality of branch pipes 2, 2 connected to the holes 10b, 10c, respectively, of the perforated pipe 1A with air tightness. An end 10 of the perforated pipe 1A is shaped corresponding to the outside shape of each of the branch pipes 2, 2 by plastically deforming work. The branch pipes 2 are inserted into the holes 10b, 10c, respectively, formed by plastically deforming work, and brazing is applied between the perforated pipe 1A and each of the branch pipes 2, 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
