车用节温器化学镀镍磷合金结构与性能  

Structure and Performances of Electroless Ni-P Alloy Coating on Thermostat

作　　者：廖一峰[1] 毛桂生[1] 黄元盛[2] 

机构地区：[1]韶关学院物理与机电学院,广东韶关512005 [2]江门职业技术学院材料技术系,广东江门529090

出　　处：《拖拉机与农用运输车》2010年第2期87-88,共2页Tractor & Farm Transporter

基　　金：韶关市科技计划项目(313-140379)

摘　　要：研究了在车用节温器表面进行化学镀镍工艺,利用SEM分析了镀镍层表面显微组织和相结构;采用HXZ-100显微硬度计测试了镀层的硬度;对镀镍层在10%NaCl,10%HCl,10%NaOH溶液中进行了耐蚀性的对比研究。结果表明:施镀40 min后,镀层均匀、致密、无明显缺陷;在上述溶液中浸泡48 h,无腐蚀孔出现;镀层在29.4 N压力下研磨也不会发生脱落,表明其附着力极好,达到车用节温器表面性能的要求。The craftwork of electroless nickel plating on the thermostat was studied. The microstructure and phase structure of Ni film were analyzed by SEM. The micro-hardness was measured with HXZ-100 micro-sclerometer. The corrosion were paralleled in 10% NaC1 and 10% HC1 and 10% NaOH solutions. The results show that the plating is uniformity and compact and not obvious flaw after 40 minutes ; the surface is not eroded in the above solution ; the coating doesn＇ t fall off under the pressure of 29.4 N, it shows the excellent adhesion reaches the exterior capability of thermostats.

关 键 词：节温器 化学镀镍 耐蚀性 

分 类 号：U464.138.3[机械工程—车辆工程] TG113.23[交通运输工程—载运工具运用工程]