曲轴电刷镀镍-钨合金镀层的研究  

Study on Electro-brush Plating of Nickel-Tungsten Alloy Coating on Crankshaft Surface

作　　者：丁立红[1] 雷卫宁[1] 唐从顺 刘维桥[2] 谈衡[1] 

机构地区：[1]江苏理工学院机械工程学院,江苏常州213001 [2]江苏理工学院化学与环境工程学院,江苏常州213001

出　　处：《电镀与环保》2015年第5期19-22,共4页Electroplating & Pollution Control

基　　金：江苏省自然科学基金项目(No.BK2012585);常州市科技计划项目(No.CM20113005)

摘　　要：采用电刷镀方法在失效的柴油机曲轴磨损表面制备了镍-钨合金镀层,并对其性能进行了研究.结果表明：循环速率和工作电压对镀层的耐磨性有较大影响.当循环速率为6～8 m/min,工作电压为14 V时,镀层的耐磨性、硬度和抗拉强度比曲轴基体的有较大幅度的提高,镀层与基体的结合力良好,反映出修复的曲轴能够满足应用要求.Nickel-tungsten alloy coatings were prepared on failed crankshaft surface by electro- brush plating method, and the performances were studied. Results showed that circulation rate and operating voltage have significant impact on the wear resistance of nickel-tungsten alloy coatings. Moreover, the prepared alloy coatings present better abrasion resistance, higher rnicrohardness and tensile strength than that of crankshaft substrate when circulation rate was and 6 ～ 8 m/min and operating voltage was about 14 V, which indicated that the repaired crankshaft can meet application requirements.

关 键 词：电刷镀 曲轴 镍-钨合金 工艺 性能 

分 类 号：TQ153[化学工程—电化学工业]