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本文通过金相、硬度、耐磨、抗咬合、电子探针等方法,研究了高速钢离子氮化后,在离子氮化炉内通入适量氩气或空气,进行不同温度、不同时间轰击处理,对渗层深度、氮浓度分布和性能的影响。试验结果表明,经离子氮化—离子轰击复合处理后,渗层深度增加,渗层硬度梯度变得平缓,最高硬度峰值向里推移,耐磨及抗咬合性能提高。高速钢冲头采用此工艺处理后显著地提高了使用寿命,是一个提高离子氮化质量的有效途径。
In this paper, after the ion nitriding of high-speed steel by means of metallography, hardness, wear-resisting, anti-bite and electron probe, the appropriate amount of argon or air is passed into the ion nitriding furnace to conduct bombardment treatment at different temperatures and different times , On the depth of infiltration layer, the distribution of nitrogen concentration and performance. The results show that the depth of the layer increases, the hardness gradient of the layer becomes gentle, and the peak of the highest hardness moves inwards after the ion-nitriding-ion bombardment compound treatment, and the wear resistance and seizure resistance improve. High speed steel punch after using this process significantly improve the service life, is an effective way to improve the quality of ion nitriding.