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在高频淬火过程中,若操作不小心感应圈碰到工件时,会引起打弧损坏工件或击穿感应圈。引起打弧的原因是:当工件与感应圈相碰的瞬间形成了感应圈-工件-淬火机床-地的回路,而工件与感应圈之间接触不良、电阻较大,故可产生弧光烧坏工件或感应器。一般多采用在感应圈上搪瓷或用玻璃丝带包裹感应圈。也有将整个淬火机床与地绝缘的。上述方法都较麻烦,
In the high-frequency quenching process, if the operation is not careful when the induction coil hit the workpiece, it will cause arc damage to the workpiece or breakdown induction loop. Caused by the arc because: when the workpiece and the induction coil contact the formation of the induction coil - workpiece - quenching machine - to the circuit, and the workpiece and induction loop poor contact between the larger resistance, it can produce arc burnout Workpiece or sensor. Generally used in the induction coil enamel or glass ribbon wrapped induction coil. There is also the entire quenching machine and insulation. The above methods are more troublesome,