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Ion cutter voltage and current control

Edit:Xuzhou Yahong CNC Equipment FactoryUpDate:2018-11-16

Voltage and current control and influence of CNC plasma cutting machine

CNC plasma cutting machines have the advantages of high cutting speed, small slits and wide cutting range. This is very attractive for most companies, but it will be encountered when the equipment is actually used after purchase. To a variety of problems, resulting in limited cutting speed, excessive kerf, and uneven cutting. In addition to the mechanical failure of the plasma CNC cutting machine , the user correctly sets the relevant parameters of the plasma CNC cutting machine every month during use, which is also one of the important factors affecting the actual cutting effect. CNC plasma cutting is different from traditional flame cutting. Because of the need to introduce plasma power accessories, it is especially important to control the relevant parameters of the power supply. Below Yahong CNC will talk about the voltage and current control of the CNC plasma cutting machine. Please also understand.

It is necessary for the plasma cut-off power supply to have a sufficiently high no-load voltage to simply ignite the arc and stabilize the plasma arc. The no-load voltage is generally 120-600V, and the arc column voltage is generally half of the no-load voltage. By increasing the arc column voltage, the power of the plasma arc can be significantly increased, thereby increasing the cutting speed and cutting a larger thickness of the metal sheet. The arc column voltage is often not reached by the conditioning gas flow rate and the increased electrode internal shrinkage, but the arc column voltage cannot exceed 65% of the no-load voltage, otherwise the plasma arc will be unstable.

Adding the same cutting current can improve the power of the plasma arc, but it is bound by a large allowable current, otherwise the plasma arc column will become thicker, the slit width will be added, and the electrode life will decrease.