液相等离子体电解渗碳、渗氮及其碳氮共渗技术

液相等离子体电解渗透、渗氮及其碳氮共渗技术是一种新兴的表面技术,与传统的离子渗碳、渗氮及其碳氮共渗技术相比有工件处理时间短、整体工件受热轻微、处理完成可以即时淬火等优点。分析了液相等离子体渗碳、渗氮和碳氮共渗技术的实验机理,从电解液体系、试验装置和工艺流程3个方面介绍了该技术的工艺特点。通过SEM照片讨论了液相等离子体电解渗透层的结构。测试了液相等离子体电解渗透层的性能。结果表明,经过渗透处理的试样具有好的耐磨性、耐蚀性,最大硬度为770HV。

Liquid phase plasma electrolytic carburizing, nitriding, carbonitriding technique

Plasma electrolytic carburizing,nitriding and carbonitriding technique in solution is a novel surface modification technique,which has many advantages such as: short treating time,low heat influence and immediate quenching effect etc.The process mechanism of the plasma electrolytic carburizing,nitriding and carbonitriding in solution was analysed.The process characteristics of the technics were introduced from aspects of electrolytic solution system,experiment equipment and process flow.The structure of the plasma electrolytic osmotic layer was discussed based on SEM photo.The performance of the plasma electrolytic osmotic layer was tested.The results show that the samples after osmotic treatment have better wear resistance and corrosion resistance,and the highest hardness is 770 HV.