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01
2021
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04
How to adjust the current of a rotor automatic spot welding machine? Are there any methods?
Before the rotor automatic line spot welding machine, AC controllers and AC spot welding machines were mainly used. However, due to the unstable current of AC spot welding machines and various reasons such as virtual welding, they have gradually been replaced by medium-frequency inverter DC controllers and medium-frequency inverter spot welding machines. Today, let's talk about how to adjust the current of the old rotor automatic line spot welding machine and what methods are available!
Rotor automatic line Previously, AC controllers and AC spot welders were mainly used for spot welders. However, due to the unstable current of AC spot welders and various reasons such as virtual welding, they have gradually been replaced by medium-frequency inverter DC controllers and medium-frequency inverter spot welders. Today, let's talk about how to adjust the current of the rotor automatic line spot welder, an old brand, and what methods are available!
1. Use constant power mode control: Constant power mode Q=UI can avoid the phenomenon of electrode temperature increase and resistivity increase when controlling in constant current mode, thereby avoiding the phenomenon of heat Q=I2Rt increase. Through a certain power mode Q=UI, the heat tends to be balanced.
2. Two wires used to measure voltage Rotor automatic line as close as possible to the positive and negative electrodes. We mainly control not the voltage of the entire circuit, but the voltage between the positive and negative electrodes.
3. Change the 1-pulse discharge to 2-pulse discharge or 3-pulse discharge (keeping the total discharge time unchanged), and reduce the power value (actually the current as low as possible) to the minimum. If pulse discharge is used, the power value needs to be increased to achieve the required welding heat. By using double-pulse discharge (when setting parameters, set the first pulse discharge value low and the second pulse discharge value high), the set power value (value) can be significantly reduced for welding. Achieve the same required heat energy. With the power value (current) reduced, electrode wear is reduced, and welding stability is improved. As Q=I2Rt indicates, the increase in current has a greater impact on heat accumulation, so when setting parameters, please reduce the current value (power value) to the minimum.
4. Change the tungsten electrode on the lower hook of the spot welder to the negative electrode. The current flows from the hook to the tungsten electrode, and the "electron movement" reduces the flow of metal atoms to the tungsten electrode, causing the electrode to become dirty and the electrode to be depleted. "Electron movement" refers to the phenomenon of movement caused by the flow of metal valence electrons. At this time, the moving object contains metal atoms, so it is also called metal movement.
The above is Rotor automatic line a relevant introduction to how to adjust the current of the spot welder. I hope that after reading the editor's introduction, everyone will have a certain understanding of the rotor automatic line spot welder, be able to use it better, improve production efficiency, and achieve energy saving. At the same time, the editor would like to remind you that if you pay more attention to daily maintenance during the use of the rotor automatic line, you can extend its lifespan, and the operation of the rotor automatic line will be more accurate.
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