widos 7000 WM, Перевод инструкций по эксплуатации

Страница: 63 / 110

Ku nst sto ffschweißtec hni k
Foundation: 2207, 2208 DIN 16932 German association for welding
Use for:
7000 WM
1 bar on manometer: 116 N
PE 80 The value for heating element temperature is between 200° C - 220° C.
The
smaller
the pipe wall the
higher
the temperature.
PE 100 The standard value for heating element temperature is 220° C.
Increase the change-over time and the welding pressure time at PE 100 as fast as possible !
time to
change- reach full
over welding cool-down time
0,15 (PE) time pressure
pressure in
T
desired temperature
time
pipe pipe SDR bead-up circular heat-up max. time welding cool-
diameter wall pressure bead time change- to reach pressure down
OD (s) [bar] min. [s] over welding [bar] time
[mm] [mm] [mm] time pressure [min]
[s] [s]
in welding area
Table for PE
bead-up heat-up
Additional to the given bead-up force and to the welding force the moving force of the support must be added !
welding area
P (N/mm²)
800
19,6 41 63 2,5 196 10 11 63 25
800
24,5 33 78 2,5 245 12 13 78 30
800
30,6 26 96 3,0 306 14 16 96 37
800 38,1 21 118 3,5 381 16 20 118 46
800 45,3 17,6 139 3,5 453 19 23 139 55
800 47,4 17 145 3,5 474 19 24 145 57
Remaining under the cool-down time for up to 50% is allowed under the following conditions:
•
prefabrication under workshop conditions
•
low additional pressure at unclamping
•
no additional pressure during further cooling down
•
load onto the workpieces only after being completely cooled down
25.11.2011 Working instructions WIDOS 7000 WM Page 59 / 5 of 98