| 摘要 |
<p>The invention disclosed hereunder is a process and a device for the preparation and formation of a plastic weld connection between a workpiece (13) and a second component to be attached thereto by heating by means of a heating device (12). If force is applied, the heating element (12) tends to deform the contact surface especially in the case of hollow, thin-walled workpieces such as plastic containers. So far, methods were disclosed for the measuring of the degree of deformation by means of a sensor, subsequently readjusting the position of the heating device according to the determined deformation. The invention disclosed here under dispenses with any measurement of deformation, instead using an elastic element which automatically readjusts the position of the heating element (12) in the case of deformation of the workpiece (13) to effect a pre-load between the heating device (12) positioned at the contact surface of the work-piece (13) and the workpiece (13).</p> |
