| 摘要 |
PURPOSE:To join the flexible synthetic resin pipes which curve by leaving them wound linearly mutually, also without the generation of a head and strongly, by heating the end parts of the pipes to be joined beforehand and correcting them linearly. CONSTITUTION:When the synthetic resin made pipes which curve by winding them on the drums, etc. are joined mutually, the end parts of the pipes are heated and their shapes are corrected linearly, then the pipes are served to joining. As said heating temperature, when the composing material of the pipe is a thermoplastic resin, the temperature rang of (m.p. of the resin -60 deg.C)-(m.p. of the resin) is preferable and when the composing material of the pipe is a crosslinking or curable resin, the temperature range of (m.p. which the resin has before a crosslinking or a cure -60 deg.C)-(the deterioration beginning temperature of the resin) is preferable. |
