轴系零件表面划伤的修复工艺研究
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摘要
将化学镀技术应用于轴系零件表面划伤的修复。介绍了实验仪器、检测设备及修复工艺流程,分析了修复镀层的剖面形貌和微观结构,并测试了修复镀层的显微硬度和耐磨性。结果表明:修复镀层与基体结合良好,界面处没有明显的缺陷,结合力约为38 N;修复镀层的显微硬度和耐磨性满足要求。轴系零件修复后经过磨削加工,恢复到设计尺寸精度,同时表面质量也达到设计要求。
Electroless plating technology was applied to repair the surface scratch of shaft typed part. The experimental instruments and testing equipments for repairation and technological process were introduced. The section morphology and microstructure of the repairation coating were analyzed, and the microhardness and wear resistance of the repairation coating were also tested. The results showed that the repairation coating was combined closely with the substrate, the binding force was about 38 N, and the interface zone was compact without obvious defects. The microhardness and wear resistance of repairation coating meet the requirements. After repairation, the shaft typed part restore the design size via grinding, and its surface quality also meet the design requirements.
Electroless plating technology was applied to repair the surface scratch of shaft typed part. The experimental instruments and testing equipments for repairation and technological process were introduced. The section morphology and microstructure of the repairation coating were analyzed, and the microhardness and wear resistance of the repairation coating were also tested. The results showed that the repairation coating was combined closely with the substrate, the binding force was about 38 N, and the interface zone was compact without obvious defects. The microhardness and wear resistance of repairation coating meet the requirements. After repairation, the shaft typed part restore the design size via grinding, and its surface quality also meet the design requirements.
引文
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[4] 孙增伟,赵晓春,刘晓明,等.电刷镀在轴类修复中的应用[J].电镀与精饰,2010,32(7):30-31.
[5] 汪玉祥,胡涛,韩虹.电机磨损轴镍磷化学镀修复技术及效果[J].材料保护,2009,42(7):63.
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