| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a piping joint, capable of constructing more rationally. <P>SOLUTION: In this piping joint, a block 120 is provided at the end part 111 of a pipe 110, and the block and the other pipe side are jointed to connect the pipes to each other. The block is formed of a casting 120a provided with a joint surface 122 joinected to the otehr pipe side and a pipe passing hole 123 for passing the pipe 110. In casting the casting, when the casting is released from a metal mold 400, a knock-out pin 420 is abutted on the joint surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
