化学复合镀Ni-P-PTFE的镀速及镀层摩擦学性能研究

PTFE

化学复合镀Ni-P—PTFE的镀速及镀层摩擦学性能研究
王柳斌 赵永武江南大学机械工程学院,江苏无锡214122

摘　要:在45#钢上化学镀Ni—P-PTFE复合镀层，其工艺流程主要包括化学机械抛光、碱性除油、活化、化学镀和干燥。研究了主盐和还原剂质量浓度、pH、温度以及PTFE体积分数对镀速的影响。观察了Ni—P-PTFE镀层的表面形貌，测试了镀层的摩擦学性能。结果表明：当工艺条件为25g/L硫酸镍、30g/L次磷酸钠、10mL／LPTFE、pH4．6和温度（92±2）℃时，镀速最佳，镀层的摩擦因数在0．16～0．20之间，具有优良的耐磨性能。[著者文摘]

关键词:镍—磷合金 聚四氟乙烯 化学复合镀 镀速 摩擦因数 耐磨性
分类号:　TQ153[著者标引]文献标识码：A文章编号：1004-227X（2009）03-0017-04栏目信息：化学镀
相关文献:主题相关 全文快照　　　

Study on deposition rate and tribological properties of electrolessly plated Ni-P-PTFE composite coatingWANG Liu-bin, ZHAO Yong-wuSchool of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaAbstract:A Ni-P-PTFE composite coating was prepared on 45 steel. The process flow includes chemo-mechanical polishing, alkaline degreasing, activating, electroless plating, and drying. The effects of the mass concentrations of main salt and reducing agent, pH, temperature and PTFE volume fraction on deposition rate were studied. The surface morphology of the Ni-P-PTFE composite coating was observed and its tribological properties were tested. The results showed that the optimal deposition rate was obtained ± 2） ℃ and pH 4.6. The composite coating has a friction factor ranging from 0.16 to 0.26, showing good wear resistance.[著者文摘]

Key words:nickel-phosphorus alloy; polytetrafluoroethylene; electroless composite plating; deposition rate; friction factor; wear resistance