Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
W. Dommer Söhne GmbH
website: www.widos.de Email: info@widos.de
17.02.14 Working Instructions WIDOS 5500 Page 15 of 48
3. Functional description
Basically, the international and national process guidelines are to be followed!
The plastic pipes are clamped in the clamping devices. Then the front sides of the pipes are
cut plane and parallel by means of the planer and the misalignment 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 process is called "adjusting".
After the prescribed bead height being 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 under prescribed welding pressure and then cool down under pressure
(cooling time).
The welded joint can be unclamped, the welding process is finished.
Heating element heats the pipes
up to welding temperature
Finished welding with
internal and external bead
To Next Page
Loading...
