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3-3. Choose a welding speed
1. Select welding speed affects the quality and productivity of welding.
2. When increasing welding speed, weakening the effectiveness of the shielding gas
and the temperature falls, so the weld is not optimal training. If the speed is too
low, the workpiece may be damaged suture training is not ideal. In practice, the
welding speed should not exceed the 30m/ht.
3-4.
Set the length of wire overhang
1. Long wire proper nozzle need to stretch out. If that is the length of a woman, in
-
crease productivity, but if it is too long, increases the spatter.
2. Usually this length is ten times the diameter of the welding wire must be.
3-5. Adjusting the flow rate of CO
2
The primary efficacy criterion of protection. The small slope of welding protection,
better performance than large slope.
Primary parameters:
Welding mode
Thin wired CO
2
weld
-
ing
Thick wired CO
2
weld
-
ing
Thick wired power CO
2
welding
CO
2
(l/min)
5~15
15~25
25~50
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