| 摘要 |
PROBLEM TO BE SOLVED: To provide a bend pipe capable of suppressing generation of pinholes caused by collision of powdery and granular materials and elongating the service life. SOLUTION: This bend pipe 31 comprises a pipe main body 33, a first auxiliary pipe 32 closely contacts with the inner peripheral face of the pipe main body 33, and a second auxiliary pipe 34 closely contacts with the outer peripheral face of the pipe main body 33. The pipe main body 33 is formed of a polymeric material (synthetic resin, rubber, etc.). Thus, impact due to collision of waste metal flowed inside the bend pipe 31 is absorbed and is weakened by the pipe main body 33. COPYRIGHT: (C)2007,JPO&INPIT
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