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图示为我厂K11系列卡盘的重要部件卡爪,材质为45钢。卡瓜粗加工完毕后需淬火、磨两大平面,因淬火时操作者素质的差别或温度、冷却液使用不当等原因,磨削后的卡爪大面会产生极微细的裂纹,对卡爪使用寿命有一定的影响,因而需对卡爪探伤。 探伤有专用的磁粉探伤机,同时我们也发现一种用煤油探伤的方法效果较佳,极为方便。方法是:将磨削后的卡爪浸在煤油中5～10min后取出,用干布迅速擦
The picture shows the key part claw of K11 series chuck of our factory, the material is 45 steel. Cigar roughing after the need to quench and grind two planes, due to differences in the quality of the operator or quenching temperature, improper use of coolant and other reasons, the jaws after grinding will produce very fine cracks, the use of the jaws Life expectancy has a certain impact, and therefore need to claw test. Flaw detection with a dedicated magnetic particle inspection machine, at the same time we also found a kerosene flaw detection method is better, very convenient. Method is: After grinding the jaws immersed in kerosene 5 ~ 10min after the removal, with a quick dry cloth