面向零件修复的感应熔覆法制备涂层的工艺试验  

Study of Preparing Coating Layers by Induction Cladding Process For Mechanical Component Repairing

作　　者：孙德勤[1,2] 戴国洪 徐正亚 

机构地区：[1]常熟理工学院化学与材料工程学院,江苏常熟215500 [2]江苏省机电产品循环利用技术重点建设实验室,江苏常熟215500

出　　处：《铸造技术》2017年第1期88-91,共4页Foundry Technology

基　　金：常熟理工学院科研基金(自然科学):汽车零部件的熔覆修复技术研究(QZ1304)

摘　　要：表面涂层技术可以用来修复零件尺寸与形状偏差,同时可以获得材料表面耐磨、耐蚀、耐热等性能,使零件恢复应有的功能。开展了利用感应熔覆工艺制备镍基ZrO_2涂层的工艺试验,通过优化粘结剂、涂层成分、表面预处理以及加热机制等工艺参数,获得了实现良好冶金结合的ZrO_2涂层,微观组织均匀;涂层厚度达到750μm,表面硬度为736.8 HV,可以满足零件表面修复的要求。The surface coating technology can be used to repair size and shape deviation of mechanical components, and improve surface properties of materials, such as surface wear resistance, corrosion resistance, heat resistance and so on, so as to recover the mechanical properties of disabled components. The preparation method of the nickel based zirconia coating was developed by induction heating cladding process, and the ZrO2 layers with good quality and metallurgical combination with the base were achieved by optimizing the process parameters, such as agglomerants, coating materials, surface pre-treatment, et al. The achieved ZrO2 coating can reach the thickness of 750 μm and the hardness of 736.8 HV.

关 键 词：感应熔覆 ZrO2涂层 冶金结合 表面修复 

分 类 号：TG174.4[金属学及工艺—金属表面处理]