| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve a technique capable of easily rapidly jointing resin-made tubular materials in a construction spot using neither a disposable electric heating wire nor a dangerous solvent. <P>SOLUTION: The method of jointing the first tubular material 12 and the second tubular material 14 each being made of a laser-transmissive resin material via a joint 10 comprises attaching a laser absorber 18 to the outer circumferential surface of each of the tubular materials 12 and 14, inserting the end of each of the tubular materials 12 and 14 in the opening portion of the joint 10, irradiating a laser beam L from the outer circumferential side of the joint 10, heating the laser absorber 18 mounted between the joint 10 and the tubular material 12 and 14, and welding the inner circumferential surface of the joint 10 and the outer circumferential surfaces of the tubular material 12 and 14 by the conduction heat. In this case the laser absorber 18 to be used is the substance which has a melting point higher than that of at least one of the resin materials of the tubular material 12 and 14 and the joint 10, and the laser beam to be used is a fiber laser. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
