Cutting gas is to ensure that the formation of plasma jet, and to ensure that remove the molten metal oxides and incision.
切割气体既要保证等离子射流的形成，又要保证去除切口中的熔融金属和氧化物。
2
If in the enthalpy increases, reduce the diameter of the jet and increase the gas flow, can often gain faster cutting speed and better cutting quality.
如果在焓值提高的同时，减小射流的直径并加大气体的流速，往往可以获得更快的切割速度和更好的切割质量。
3
Because the hydrogen can significantly improve the arc voltage, make hydrogen plasma jet has high enthalpy, when mixed with argon plasma jet, the use of cutting ability is greatly increased.