通常表现是切割射流的吹力减弱，切口下部残留的熔渣增多，上部边缘过熔而出现圆角等。
Usually the performance is a cut of the jet blew force is abate, the lower incision of the remainder of the slag increased, the upper edge of the melt and appear a round, etc.
测试结果表明熔敷金属为过共晶组织。
The microscopic analysis results indicate that deposited metal is hypereutectic structure.
过晶的，过低熔的：有大量的小组元，而不是同种组元的共晶组合。
Having the minor component present in a larger amount than in the eutectic composition of the same components.
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