The problems of burning plasma torch nozzle of CNC plasma cutting machine are mainly caused by improper operation, insufficient equipment maintenance and environmental factors. Here are some solutions:

Check the air pressure: Make sure the working air pressure meets the requirements of the manual, and avoid too low or too high air pressure. Insufficient air pressure will lead to poor incision quality, incomplete cutting, and incision accumulation, while too high air pressure may damage the cutting torch nozzle. The solution includes adjusting the output pressure of the air compressor, checking whether the adjustment of the air filter pressure reducing valve is correct, and ensuring that the input air is dry and oil-free.

Check the ground wire contact: Make sure the ground wire contact is good to avoid the arc voltage from being intermittent due to poor contact, thereby burning the cutting head of CNC plasma cutting machine.

Replace the wearing parts in time: such as electrodes and swirl rings. If these parts are not replaced in time, it is easy to cause the cutting head to burn. These wearing parts should be checked regularly and replaced in time.

Adjust the cutting parameters: including cutting current, arc voltage value and speed. Improper setting of these parameters may also cause damage to the cutting gun head. These parameters should be adjusted according to the cutting material and sheet thickness to avoid overly large or undersized settings.

Keep the cutting torch clean: When installing the consumable parts of the CNC plasma cutting machine, pay attention to keep it clean to avoid impurities entering the inside of the cutting torch, causing the cutting nozzle hole to deform or expand.

Check the cable and water cooling system: Make sure that the square number of the cable used is sufficient, the circulating coolant of the water cooling system is clean and the return water volume is sufficient. These factors may affect the cutting effect and the service life of the cutting torch nozzle.

Through the above measures, the problem of burning the cutting torch nozzle of the CNC plasma cutting machine can be effectively reduced, and the cutting quality and the service life of the equipment can be improved.