widos 4900 - Page 34

Ku nst sto ffschwei ß tec hni k
Table for PVDF
Foundation: 2208, 2207 Part 15 German association for welding
Use for:
4900
1 bar on manometer:
59
N
time to
reach full
bead-up welding cool-down time
0,10 (PVDF) pressure pressure in
welding area
T desired
temperature
time
pipe
pipe
bead-up
circular
heat-up
time
welding
cool-
diameter
wall
pressure
bead
time
to reach
pressure
down
OD
(s)
[bar]
min.
[s]
welding
[bar]
time
[mm]
[mm]
[mm]
pressure
[min]
[s]
90
2,8 2 0,5 68 4 2 5,5
90
4,3 2 0,5 83 4 2 7,0
90
5,4 3 0,5 94 5 3 8,5
110
3,4 2 0,5 74 4 2 6,0
110
5,3 3 0,5 93 5 3 8,5
110
6,6 4 0,6 106 5 4 10,0
125
3,9 3 0,5 79 4 3 6,5
125
6,0 4 0,6 100 5 4 9,0
140
4,3 4 0,5 83 4 4 7,0
140
6,7 5 0,6 107 6 5 10,0
160
4,9 5 0,5 89 5 5 8,0
160
7,7 7 0,7 117 6 7 11,0
180
5,5 6 0,5 95 5 6 8,5
180
8,6 8 0,8 126 6 8 12,5
200
6,2 7 0,6 102 5 7 9,5
200
9,6 10 1,0 136 7 10 13,5
225
6,9 9 0,7 109 6 9 10,5
225
10,8 13 1,0 148 7 13 15,0
250
7,7 10 0,7 117 6 10 11,0
250
11,9 16 1,1 159 8 16 16,5
280
8,6 13 0,8 126 6 13 12,5
315
9,7 16 1,0 137 7 16 13,5
The standard value for heating element temperature is 240° C +/- 8° C.
The
smaller
the pipe wall the
higher
the temperature.
Additional to the given bead-up force and to the welding force the moving force of the support must be added !
P (N/mm²) change-
4
4
4
3
4
3
4
in welding area
heat-up over
time
max.
change-
over
4
3
3
3
3
4
3
4
time
[s]
4
4
4
4
4
4
3
02.11.2011 Working instructions WIDOS 4900 Page 27 von 46