Swagelok CWS-D100-1B, Руководство пользователя

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2005 Swagelok Company., all rights reserved
September 2005
D-1
Appendix D
Weld Head Information
Weld
Head
Series
Shield Gas Flow Rates
std ft3/hr
(std L/min)
Prepurge and
Postpurge
minimum time
in seconds
Start Power
Maximum
Recommended
Average Amps
4
8 to 10
(4,7 to 4,7)
Continuous Low 30 A
8
15 to 20
(7,1 to 9,4)
Continuous Low 38 A
NOTE 4
5
10 to 15
(4,7 to 7,1)
20
NOTE 2
Normal
NOTE 3
50 A
10
10 to 20
NOTE 1
(4,7 to 9,4)
20
NOTE 2
Normal
NOTE 3
100 A
20-A
10 to 20
NOTE 1
(4,7 to 9,4)
30
NOTE 2
Normal 100 A
20 − B
20 to 40
NOTE 1
(9,4 to 18,8)
30
NOTE 2
Normal 100 A
NOTE
1
Set flow to higher rates when welding at high current rates.
2 Flow should be continuous for cooling when welding at high
current rates.
3 When welding wall thickness of 0.020 in. (0,5 mm) or less, use
low start power and an arc gap of 0.035 in. (0,89 mm) or less.
4 When welding 1/2 in. or 12 mm OD with a Series 8 weld head,
use the single pass (one revolution) weld procedure only.