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
www.widos.de
23.07.14 Working
instructions WIDOS WELD IT 315 Steel
Page 15 of 45
3. Functional
description
B a s i c a l l y t h e i n t e r n a t i o n a l a n d n a t i o n a l s t a n d a r d s p e c i f i c a t i o n s a r e t o b e
f u l f i l l e d .
The plastic pipes are clamped by means of the clamping tools.
Then the foreparts are planed parallel by means of the
planer
, and mismatch is checked.
Now the WI HEAT
®
heating element is inserted and the pipes are pressed against the WI
HEAT
®
heating element with the defined adjusting pressure. This operation is called
"adjusting"
.
After the prescribed bead height is reached, the pressure is relieved and the
heat-up time
is
starting. Now the pipes are heated up to welding temperature.
After expiration of the heat-up time, the slide has to be opened, the WI HEAT
®
heating element
is removed quickly and the pipes are rejoined. The time between removing the WI HEAT
®
heating element and rejoining 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.
WI HEAT
®
heating element
heats the pipes up to welding
temperature
Finished weld joint with
internal and external bead
