How to adjust the nozzle height of the gantry CNC cutting machine?

　　 Speaking of 'gantry cutting machineAdapt to more environments and more cutting situations, so it is loved by consumers, so how to adjust the height of the nozzle of the gantry CNC cutting machine?

　　Plasma cutting gun The nozzle height control is directly related to the quality of the workpiece processing. Generally, the nozzle height refers to the distance between the nozzle end surface and the cutting surface, which constitutes a part of the entire arc length. Since plasma arc cutting generally uses a power supply with constant current or steep drop characteristics, when the nozzle height increases, the current does not change much, but it will increase the arc length and cause the arc voltage to increase, so the CNC cutting machine can increase the arc power; but with this At the same time, the arc length exposed to the environment will increase, and the energy lost by the arc column will increase.

　　Under the combined action of two factors:

　　1

. The effect of the former is often completely offset by the latter, on the contrary, the effective cutting energy will be reduced, resulting in a reduction in cutting ability. The usual performance is that the blowing force of the cutting jet is weakened, the residual slag in the lower part of the incision increases, and the upper edge is excessively melted and rounded.

　　2. Considering the shape of the plasma jet, the diameter of the jet expands outward after leaving the muzzle. The increase in the height of the nozzle of the cutting machine will inevitably lead to an increase in the width of the cut. Therefore, choosing the smallest possible nozzle height is conducive to improving the cutting speed and cutting quality, but if the nozzle height is too low, it may cause a double arc phenomenon. Using ceramic outer nozzles can set the nozzle height to zero, that is, the nozzle end surface directly contacts the cutting surface, and good results can be obtained.

　　How to adjust the height of the nozzle of the gantry CNC cutting machine? The above is all the answers to this question. I wonder if it can help you? Development in recent years In, the laser cutting machine is widely used in industrial operations, if you want to learn more about the laser cutting machine, you can pay more attention to our website.

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