2024-T3铝合金环境友好型脱氧工艺研究  

Experimental study of environmental protection deoxidation process for 2024-T3 aluminum alloy

作　　者：刘泽恩 马建强 王梅丰[1] 童子航 张昊 Liu Ze’en;Ma Jianqiang;Wang Meifeng;Tong Zihang;Zhang Hao(School of Materials Science and Engineering,Nanchang Hangkong University,Nanchang 330063,China;Jiangxi Changelight Semiconductor Technology Co.,Ltd.,Nanchang 330100,China)

机构地区：[1]南昌航空大学材料科学与工程学院,江西南昌330063 [2]江西乾照半导体科技有限公司,江西南昌330100

出　　处：《电镀与精饰》2025年第1期73-80,共8页Plating & Finishing

摘　　要：针对2024-T3铝合金传统三酸脱氧液中Cr~(6+)存在严重危害环境问题,研究开发了2024-T3铝合金环保碱性脱氧工艺。通过正交试验对该工艺脱氧处理后的铝合金表面形貌、粗糙度进行分析,得到最佳碱性脱氧工艺参数为:碳酸钠80 g/L、表面活性剂0.2 g/L、缓蚀剂15 g/L、整平剂10 g/L、温度60℃、脱氧时间2 min。对该工艺处理后的铝合金进行阳极氧化及沸水封闭处理,膜层电化学交流阻抗测试容抗弧的容抗直径为120 306?·cm^(2),中性盐雾试验超过500 h。An environmentally friendly alkaline deoxidation process for 2024-T3 aluminum alloy has been developed to address the serious environmental hazards of Cr6+in the traditional tri-acid deoxidation solution.The surface morphology and roughness of aluminum alloy after deoxidation treatment were analyzed using orthogonal experiments.The optimum alkaline deoxidation process parameters are as follows:sodium carbonate 80 g/L,surfactant 0.2 g/L,corrosion inhibitor 15 g/L,leveling agent 10 g/L,temperature of 60,and deoxidation time of 2 min.The aluminum alloy treated by this process was℃subjected to anodizing and boiling water sealing treatment.The capacitance radius of the electrochemical impedance test for the film layer was 120306Ω·cm^(2),and the neutral salt spray test exceeded 500 h.

关 键 词：环保 无铬脱氧 2024-T3铝合金 盐雾实验 

分 类 号：TG174.4[金属学及工艺—金属表面处理]