齿轮用45钢锰系磷化膜和锰系复合磷化膜的性能比较  

Comparison of Properties of Manganese Phosphating Film and Manganese Composite Phosphating Film on 45 Steel for Gear

作　　者：赵利民[1] 王树凤 ZHAO Limin;WANG Shufeng(Yangzhou Polytechnic Institute,Yangzhou 225017,China;Yangzhou Super Machine Tool Co.Ltd.,Yangzhou 225017,China)

机构地区：[1]扬州工业职业技术学院,江苏扬州225017 [2]扬州力创机床有限公司,江苏扬州225017

出　　处：《电镀与精饰》2020年第8期13-17,共5页Plating & Finishing

基　　金：国家高等职业教育创新发展行动计划机械设计与制造骨干专业建设项目(SM1)。

摘　　要：在含有聚四氟乙烯(PTFE)颗粒的磷化液中,通过共沉积在齿轮用45钢表面制备了锰系复合磷化膜,比较了锰系磷化膜和锰系复合磷化膜的微观形貌、成分、膜重、结合力、硬度、耐磨性能和耐腐蚀性能。结果表明,锰系复合磷化膜中含有Mn、P、Fe、O、C和F六种元素,与锰系磷化膜相比多了F元素,证实了一定量的PTFE颗粒通过共沉积进入磷化膜中。锰系磷化膜和锰系复合磷化膜的膜重接近,均为16 g/m2左右,且锰系磷化膜和锰系复合磷化膜均与基体结合良好。与锰系磷化膜相比,锰系复合磷化膜的硬度略有提高,硬度值约为253.4 HV,耐磨性能和耐腐蚀性能都明显改善。PTFE颗粒主要填充在磷化膜晶粒间隙处,形成固体润滑膜起到减轻摩擦的作用,同时有效阻止了腐蚀溶液的渗透,故锰系复合磷化膜表现出相对较高的硬度以及更好的耐磨性能和耐腐蚀性能。The manganese composite phosphating film was prepared by co-deposition on the surface of45 steel for gear from the phosphating solution containing poly tetra fluoroethylene(PTFE)particles.The microstructure,composition,weight,adhesion,hardness,wear resistance and corrosion resistance of manganese phosphating film and manganese composite phosphating film were compared.The results showed that manganese composite phosphating film was composed of Mn,P,Fe,O,C and F elements.Compared with manganese phosphating film,F element was detected in manganese composite phosphating film,which proved that a certain amount of PTFE particles entered the phosphating film by co-deposition.The weight of manganese phosphating film and manganese composite phosphating film were close,and the values were all about 16 g/m2.Both of manganese phosphating film and manganese composite phosphating film had better adhesion with the substrate.Compared with manganese phosphating film,the hardness of manganese composite phosphating film was slightly increased,which was about253.4 HV,and the wear resistance and corrosion resistance were obviously improved.PTFE particles were mainly filled in the grain gap of phosphating film to form a solid lubricating film to reduce friction and effectively prevent the penetration of corrosion solution.Therefore,manganese composite phosphating film showed relatively high hardness,better wear resistance and corrosion resistance.

关 键 词：锰系磷化膜 锰系复合磷化膜 齿轮用45钢 耐腐蚀性能 耐磨性能 

分 类 号：TB43[一般工业技术]