2015年9月16日星期三

Cutting hose fittings quality directly affects the stability

Plasma arc cutting hose fittings quality directly affects the stability of the plasma arc instability will lead to cuts uneven buildup and other defects, can lead to
The control system related to reduced life components, nozzles, frequent replacement of the electrode. For this phenomenon, analyze and propose solutions.
1 pressure is too low
Plasma cutting machine work, such as working pressure is far below the required specification pressure, which means that the ejection velocity plasma arc weakened, input air flow
Is less than the predetermined value, this time can not form a high energy, high speed plasma arc, resulting in poor cut quality, not cut through, cut buildup phenomenon. Insufficient air pressure of the original
Due to: lack of input air compressor, air regulator valve regulator cutting hydraulic machines is too low, the solenoid valve within the oil, gas path is not smooth and so on.
The workaround is to use the former to observe compressor output pressure display, if not met, adjust the pressure or compressor overhaul. If the input air pressure has reached the required, You should check the air filter regulator adjusted correctly, gauge display can meet the cutting requirements. Otherwise deal with air filter regulator routine maintenance, indeed Paul input air dry, no oil. If you enter the air quality is poor, it will cause the solenoid valve to generate oil, valve open difficulties valve port can not be fully opened. Furthermore,Torch nozzle pressure is too low, the need to replace the solenoid valve; pneumatic smaller cross-section can also cause pressure is too low, according to the specification requirements replace the trachea.
2 pressure is too high



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