| 摘要 |
PURPOSE: To attain jointing in a short time by installing a heat-welding type resin tube at a peripheral surface near a jointing part between fluororesin tubes, bringing a heat-resisting tubular body into close contact with the peripheral surface of the resin tube before covering, and carrying out welding with conduction heat from a conductive heat generating element, in heating and welding the jointing part. CONSTITUTION: In jointing fluororesin tubes 1, 1 with a heat-welding type resin tube 2, the heat-welding type resin tube 2 is first applied over a peripheral surface near a jointing part 1a between the fluororesin tubes 1, 1, and a heat- resisting tubular body 3 is brought into close contact with the peripheral surface before covering. A conductive heat generating element 4 is closely-disposed at the peripheral surface of the heat-resisting tubular body 3 so as to be attached and removed, and an opening and closing electromagnetic coupling coil L provided with a hinge box L4 pivoted by a hinge L3 is disposed so as to surround its periphery. The heat-welding type resin tube 2 is fused by the heat which the conductive heat generating element 4 generates through an alternating magnetic field from the electromagnetic coupling coil L to joint the fluororesin tubes 1, 1 each other. |
