摘要
对细长窄深槽类带钩零件进行电镀,需在槽内壁表面获得完整的电镀覆盖层的同时要求细钩不烧焦,难度相当大,已经成为这类零件生产中长期存在的“瓶颈”环节。针对这一问题,本文以细长窄深槽类带钩零件为基体,制备了环保电镀铬层,并对镀层进行热处理。采用超景深显微镜、扫描电子显微镜(SEM)考察了镀层的外观质量和微观形貌;用能谱仪(EDS)、X射线衍射仪(XRD)分析了镀层的元素组成和相结构;用显微硬度计测试了镀层的显微硬度,并采用划格法检测了镀层与基体的结合力。结果表明:槽内壁表面获得了完整的电镀覆盖层,细钩不烧焦,镀层光亮平滑;镀层与基体结合良好;镀层经热处理后,显微硬度略高于传统工艺制备的镀层硬度。
For the plating of slim narrow and deep groove parts with hook,it is necessary to obtain a complete plating coating on the inner wall surface of the part while the slender hooks do not scorch,which is quite difficult and has become a"bottleneck"in the production of such parts for a long time.In this paper,the slim narrow and deep groove parts with hook were used as the substrate to prepare the environmentally friendly chromium plating layer and heat-treated plating layer.The super deep scene microscope and scanning electron microscope(SEM)were used to investigate the appearance quality and micro-morphology of the coating.The elemental composition and phase structure of the coating were analyzed with an energy spectrometer(EDS)and X-ray diffraction(XRD).The microhardness of the coating was tested by micro-hardness tester,and the bonding force between the coating and the substrate was detected by a cross-cut method.The results show that the plating coating on the inner wall surface of the part is complete.The slender hooks do not scorch,and the coating is bright and smooth.The coating is well combined with the substrate,and the micro-hardness of the coating after heat treatment is slightly higher than that of the traditional coating.
作者
洪子康
骆祎岚
罗晗
朱巧莲
朱世根
Hong Zikang;Luo Yilan;Luo Han;Zhu Qiaolian;Zhu Shigen(Engineering Research Center of Advanced Textile Machinery of the Ministry of Education,College of Mechanical Engineering,Donghua University,Shanghai 201620,China;Yiwu Yunxi New Material Technology Co.,Ltd.,Yiwu 322000,China)
出处
《电镀与精饰》
CAS
北大核心
2023年第2期61-64,共4页
Plating & Finishing
关键词
细长窄深槽类带钩零件
镀铬
环保
热处理
slim narrow and deep groove parts with hook
electroplating chromium
environmentally friendly
heat treatment
