This paper analyses the usage of lgk series of air plasma arc cutting machine , and enumerates the causes and solutions of striking arc , main circuit , gas path and cutting torch breakdown 摘要分析了lgk系列空气等离子弧切割机的使用方法，例举了其引弧故障、主电路故障、气路故障、割枪故障产生的原因和解决方法。
