| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a welding method of resin pipes capable of laser beam-welding a laser beam-transmittable material and a laser beam-absorbable material without a restriction of an arrangement of both. <P>SOLUTION: When a resin tube 4 of the laser beam-absorbable resin is outward mated with a resin joint 5 of the laser beam-transmittable resin to laser-weld both, a flexible laser beam irradiation nozzle 3 is inserted in the inside of the resin tube 4 and the resin joint 5, the tip end is bent, and the resin tube 4 is irradiated from the inside of the resin joint 5 with the laser beam L with the tip end facing the inner circumference of the resin joint 5. <P>COPYRIGHT: (C)2009,JPO&INPIT |
