scope:

Scope of application

In this technical code, the processors of semi-finished products and the machine manufacturers are given an overview of the requirements which must be set on devices and machines for the heated tool welding and sleeve welding with an incorporated electric heating element of thermoplastics. On the basis of the highlighted characteristics, the processor can check with which devices or machines his welding tasks can be performed in a safe way suitable for the material.

The technical code relates to the processes and the various execution types of heated tool welding in which the joining faces are heated by direct contact with the heated tools as are described, for example, in DVS 2207-1, DVS 2207-11 and DVS 2207-15. In the case of heater spiral fittings, the heated tool is already integrated into the component in the form of an electrical conductor and remains there after the joining process.

The content of the technical code relates, in particular, to devices for the welding of polyolefins (PE, PE-X, PP and PB) as well as of PVDF, PVC-U and PVC-C.

In the case of devices for the welding of other thermoplastics, it must be checked in each individual case whether the material or the process necessitates the consideration of any requirements deviating from those stipulated in this technical code.

This technical code does not deal with special machines, the whole field of film and sealing sheet welding, the infrared welding technology or devices for high-frequency, vibration or friction welding etc.