| 摘要 |
<p>PURPOSE:To provide an anti-corrosive flexible pipe fitting with which the sealing and flexibility can be held for a long time even though it serves being embedded underground by forming it from a resilient substance as a reaction object of a hardening agent and a main material containing liquid rubber which has a specific hardness and compressive elongativeness. CONSTITUTION:Longitudinally stretching, recesses and projections are formed alternately on the internal and external surfaces of a cylindrical body 2 of pipe fitting made of metal. This body 2 of fitting is deformable in the longitudinal direction and is covered with an anti-corrosive covering layer 4, which is in turn covered with an elastic subatance 5A. The substance 5A having a thickness over 5mm even in its thinnest part, consists of a reaction object of a hardening agent and a main material containing liquid rubber, and has a hardness between 5-60 by A-type hardness meter according to JIS-K-6301. Further, the flexible fitting can be compressed to a length below 70 when its original length is 100, and is capable of elongating to 130 or more.</p> |
