| 摘要 |
<p>PURPOSE:To extremely quickly and precisely realize the heat settings such as bending and the like and the joining of a branch pipe with a synthetic resin pipe by a method wherein the mounting of the branch pipe and, at the same time, bending work are applied by irradiating a synthetic resin pipe for bending work having high frequency dielectric heating element with high frequency fields. CONSTITUTION:A synthetic resin pipe 10 having high frequency dielectric heating element consists of pipe body 1 made of thermoplastic resin and heating layer 2, which is formed by kneading short fiber or powdered or granular material made of the same material as that of the pipe body 1 and high frequency dielectric heating material. In order to mount a branch pipe 20 or another synthetic resin part to the synthetic resin pipe 10, the heating layer 2 is exposed by machining the wall part 40 at the desired site of the pipe body 1 in the synthetic resin pipe 10 so as to be formed in a mate joining part and held in order to be heated and melted with a high frequency electric field generating device, resulting in cooling the pipe and the mate joining part when both of them are fully melted together.</p> |
