Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone +49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax +49 7152 9939 - 40
info @ widos.de
http://www.widos.de
30.06.11 Working Instructions WIDOS 5100 Page 16 of 45
3. Functional description
Basically, the international and national standard specifications are to be
fulfilled.
The plastic pipes are clamped in the clamping devices.
Then the front side of the pipes are cut plane and parallel by means of the planer, and
missalignment of the pipes is checked.
The cleaned and heated heating element is inserted and the pipes are pressed against the
heating element under defined adjusting pressure. This operation is called "adjusting".
After the prescribed bead height is reached, pressure is reduced, the heating time
begins. The function of this time is to heat up the pipe ends..
After expiration of the heating time, the slides are opened, the heating element is
removed quickly and the pipes are driven together again. The time gap from the removal of
the heating element to joining the pipes is called change-over time.
The pipes are joined with the prescribed welding pressure and then cool down under
pressure (cooling time).
The weld joint can be unclamped, the welding process is finished.
Heating element heats the pipes
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