How to adjust the current of argon arc welding machine
The generation and turn-off of high frequency and high voltage current are controlled by relay. When the manual switch is fully opened, the switch S2 is closed. At this time, the circuit works, outputting a DC voltage of about 56 volts, making the relay act, making the high-frequency and high-voltage circuit work, producing high-frequency and high-voltage current output, causing an arc, and a large current appears in the output circuit, which flows through the reactor.
Due to the residual current of the inductor, the positive terminal voltage of the reactor can be reduced to a very low potential. At this time, the relay is disconnected and the high-frequency and high-voltage generator stops working, thus completing the control of high-frequency and high-voltage current.
Extended data
Matters needing attention in operation of argon arc welding machine:
1, argon arc welding switch must be operated by special personnel.
2. Check whether the equipment and tools are in good condition before work.
3. Check whether the high-frequency arc ignition system and welding system are normal and whether the wire and cable joints are reliable. For automatic TIG welding, check whether the adjusting mechanism and wire feeding mechanism are in good condition.
4. Select the polarity according to the workpiece material and connect the welding circuit. General materials are directly connected by DC, and aluminum and aluminum alloys are connected by reverse connection or AC power supply.
5, are not allowed to be naked and naked in other parts near the arc, are not allowed to smoke and eat near the arc, so as not to inhale ozone and smoke.
6, argon arc welding in the container, should wear a special mask, in order to reduce the inhalation of harmful smoke. Outside the container, there should be a person to supervise and cooperate.
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