小模数齿轮离子渗氮层深均匀性研究  

Study on deep uniformity of ion nitriding layer of small modulus gear

作　　者：马青龙 徐宁 刘爱军[2] 陈浩 MA Qinglong;XU Ning;LIU Aijun;CHEN Hao(CRRC Qishuyan Locomotive and Vehicle Technology Research Institute Co.,Ltd.,Changzhou 213011,Jiangsu,China;School of Materials,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所股份有限公司,江苏常州213011 [2]合肥工业大学材料学院,安徽合肥230009

出　　处：《金属加工（热加工）》2024年第4期5-8,13,共5页MW Metal Forming

基　　金：国家自然科学基金青年项目(12305301)。

摘　　要：探讨了炉压对小模数齿轮离子渗氮齿根层深均匀性的影响。结果表明:低炉压时,齿根渗氮层较浅,不能形成连续的渗氮白亮层,采用饱和硫酸铜溶液侵蚀会出现铜色沉积。随着炉压提高,齿根渗氮层深提高,表面渗氮白亮层连续,当炉压提高到680Pa时,齿根渗氮层深达到节圆层深的87%,渗氮层均匀。The effect of furnace pressure on the depth uniformity of small modulus gear root was studied during ionic nitriding.The results show that at low furnace pressure,the nitriding layer of tooth root is shallow,and continuous nitriding white layer can not be formed,and copper color deposition will occur when saturated copper sulfate solution is used to erode it.With the increase of furnace pressure,the depth of tooth root nitriding layer increased,and the surface nitriding white layer was continuous.When the furnace pressure increased to 680Pa,the depth of tooth root nitriding layer reached 87%of the depth of pitch layer,and the nitriding layer was uniform.

关 键 词：离子渗氮 34CrNiMo6钢 小模数齿轮 渗氮均匀性 

分 类 号：TG162.73[金属学及工艺—热处理]