What are the welding current characteristics of the best and cheapest TIG welding torch
Mar 08,2024
When the best and cheapest TIG welding torch is welding, due to the low current density used and the low thermal conductivity of argon gas, the arc is basically not compressed, and the static characteristics of the arc are horizontal. According to the requirements of the best and cheapest TIG welding torchharc static characteristics on the external characteristics of the power supply, whether an AC power supply or a DC power supply is used, a power supply with reduced external characteristics should be used.best and cheapest TIG welding torchDue to the welding of the best and cheapest TIG welding torch, small changes in arc length will cause great fluctuations in the welding power source. Therefore, when using a TIG torch, it is ideal to use a power supply with vertical dip characteristics (such as a magnetic amplifier type silicon arc welding rectifier), which can also eliminate current fluctuations caused by changes in arc length.
The best and cheapest TIG welding torch also have positive connection and reverse connection methods when welding with DC power supply. Usually, the positive connection method is used, and the reverse connection method is only used when welding aluminum, magnesium and their alloys. However, due to the very limited current allowed by the best and cheapest TIG welding torch, AC power is generally used when TIG is used to weld aluminum, magnesium and its alloys.
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