| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve exact shutout without using a packing on a joint part of two pipes 1, 1, by fastening a tapered face 3 and a projecting line of an angular edge 4 by an annular band 5 and the like on opposite ends 2', 2' of flange parts 2, 2 of both pipes 1, 1. <P>SOLUTION: The flanges 2, 2 are respectively formed on outer peripheries of opposite ends of two pipes 1, 1 placed on a common central line c, the tapered face 3 is formed along an inner circumferential cycle of the opposite ends 1', 1', the angular edge 4 kept into contact with the tapered face 3 is formed along the inner circumferential circle, a press bonding means is mounted to circularly press bond the tapered face 3 and the angular edge 4, and seal the opposite ends along a circular press bonding line, and the tapered face 3 or the angular edge 4 is projected or recessed to the opposite ends of one side or the other side. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
