With the development of modern machinery processing industry, the requirements for the quality and precision of cutting have been continuously improved, and the requirements for improving production efficiency, reducing production costs, and having high-efficiency automatic cutting functions are also increasing. As a part of the cutting machine industry, the products we provide will be the most modern and technological. Welcome everyone to discuss cooperation. Details:/
The daily practical operation of CNC cutting machine:
In the course of daily practical operation, the stability of the arc of the CNC cutting machine directly affects the cutting quality, and the arc instability of the plasma cutting machine will lead to irregularities such as incisions, defects in the accumulation of defects, and the like. Lower, nozzles, electrodes are frequently replaced. Wuhan Pilot NC made the following answers based on this phenomenon, for the majority of users reference. The common factors are mainly the pressure is too high or too low. Here we explain why the air pressure is too low or too high and how to solve it:
1.Air pressure is too low: When the CNC cutting machine is working, if the working pressure is far below the pressure required by the specification, this means that the discharge speed of the plasma arc is weakened and the input air flow is less than the specified value, and high energy cannot be formed at this time. High-speed plasma arcs result in poor cut quality, impenetrability, and kerf accumulation. The reasons for the lack of air pressure are: lack of input air to the air compressor, low pressure adjustment of the air conditioning valve of the CNC cutting machine, oil pollution in the solenoid valve, and unobstructed gas path.
Solution: Observe the output pressure of the air compressor before use. If it does not meet the requirements, adjust the pressure or overhaul the air compressor. If the input air pressure has reached the requirements, check whether the air filter pressure reducing valve is adjusted correctly and whether the gauge pressure display meets the cutting requirements. Otherwise, perform routine maintenance on the air filter regulator to ensure that the input air is dry and free of oil. If the input air quality is poor, the CNC cutting machine will cause oil contamination in the solenoid valve. The valve core will open difficultly and the valve port will not open completely. In addition, torch nozzle gas pressure is too low, but also need to replace the solenoid valve; gas cross-section smaller will cause the air pressure is too low, according to the instructions to replace the trachea.
2. Air pressure is too high: If the input air pressure is far more than 0.45 MPa, after the plasma arc is formed, excessive airflow will blow off the concentrated arc column, which will disperse the energy of the arc column and weaken the cutting of the plasma arc cutting machine. strength. The causes of high air pressure are: improper input air adjustment, excessive air filter pressure regulator or air filter pressure regulator failure.
Solution: Check if the air compressor pressure is properly adjusted and if the pressure of the air compressor and air filter regulator is out of adjustment. After starting up, if the rotary air filter pressure reducing valve adjusts the switch, there is no change in the gauge pressure, indicating that the air filter pressure reducing valve is out of order and needs to be replaced.
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