| 摘要 |
This method consists first of all in superposing, over a certain length, back to back, the ends to be joined of the two strips 34a, 34b, in transversely welding (heat-sealing) them using ultrasound, in transversely cutting the two strip ends in the central portion of the weld and, finally, in bringing the joined ends of the two strips back into their mutual extension. Application to the joining of foam strips made from heat-meltable material. <IMAGE> |
