Gas shielded welding machines generally have two
one (no
separate wire feeder)
I don't think you will ask questions, such as current and voltage knob. Do you want to find the current and voltage regulation ratio after welding? The current controls the wire feeding speed, and the voltage is the burning speed of the welding wire. If the wire feeding speed is fast, the burning speed should also be fast, so the current and voltage should be increased.
If the voltage is too high, the solution depth becomes shallow, the Rong width increases, the reinforcement decreases, and the weld toe is smooth! On the contrary, if the current is large, the fusion is good. In the case of small splash, try to use large current.
When the current is less than 300A, the welding voltage = (0.04 × welding current + 16) ± 1.5
for example, the current you choose is 200A. Calculation method welding voltage = (0,04 × 200 + 16) ± 1,5 = 24 ± 1,5 (V)
when the current is greater than 300A. Welding voltage = (0.04 × welding current + 20) ± 1.5
for example, the current you choose is 400A. Calculation method: welding voltage = (0,04 × 400 + 20) ± 1,5 = 36 ± 1,5 (V) generally, a little deviation of current and voltage will not have a great impact. Everyone's use is different, and they feel that the weld formed well and the weld color is good. And in the welding process, the current and voltage are constantly changing, and can not be fixed in a position, so there is no 100% ratio.
Well, back to what we just said, how about CO2 gas shielded weldingAdjust the current and voltage:
the oxygen dioxide welding machine is a kind of welding machine which can protect the bath by carbon dioxide gas and prevent air from entering the bath and producing pores.
So to adjust its current and voltage, the general machine is separately adjusted, we said before: the current is generally mainly to adjust the speed of wire feeding, the role of voltage is to melt the welding wire. Therefore, when the voltage is low, the welding wire can't melt easily, and the welding line is very high and sharp; when the voltage is high, the wire melting speed is fast, and the voltage is too high, the forming is not good, and the solution pool is easy to collapse and not swimming pool current machine bright and full.
Then, when you don't know the current and voltage, you can first set one to adjust the other. You can first fix the current to adjust the voltage, and first adjust to the small. If the voltage is not well controlled, it is easy to burn off the conductive nozzle if the voltage increases suddenly. If the splash is too large, turn to the large one.
The voltage can also be fixed line current, if the spatter is large, you can adjust the voltage to small or high. If you adjust the welding wire back to a smaller one, you can turn it to a larger one or lower the voltage
this method is very easy to learn and Endless Swimming Pool is very simple. When you adjust it until the sound is smooth, it is almost the same.
There are other types of machines which are unified adjustment,
that is, the current potentiometer adjusts the current and voltage, and the voltage potentiometer adjusts the voltage. be the same in essentials while differing in minor points.
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