High-power double-wire pulse MIG welding low-frequency modulation type double-pulse control system
A technology of low-frequency modulation and control system, which is applied in the direction of manufacturing tools, welding equipment, welding accessories, etc., and can solve problems such as the inability to reflect the advantages of high-power twin-wire welding, the inability to realize high-efficiency welding processes, and the increase in the interaction force of double arcs , to reduce the occurrence probability of porosity defects, improve welding speed and deposition efficiency, and reduce heat output
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[0036] Such as figure 1As shown, a high-power dual-wire pulse MIG welding low-frequency modulation dual-pulse control system includes a host power supply and a slave power supply with the same structure, and the host power supply and the slave power supply are connected through the CAN bus. The master power supply is responsible for providing current for the front wire and coordinatingly controlling the entire system. The slave power supply is responsible for providing current for the rear wire. There is no electrical connection between the two welding wires. In terms of software, the slave power supply receives the control of the master power supply, and the master and slave power supplies pass through CAN bus communicates and exchanges data.
[0037] The connection is as follows: the host power supply and the slave power supply both include two main circuits and a control circuit, one end of the two main circuits is connected to a three-phase AC, and the other end is connect...
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