[1]刘路华.doi: 10.3969/j.issn.1001-3849.2025.11.007铝合金耐高温导电化学氧化工艺研究[J].电镀与精饰,2025,(11):54-59.
　Liu Luhua*.Research on high-temperature resistant conductive chemical oxidation of aluminum alloys[J].Plating & Finishing,2025,(11):54-59.
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doi: 10.3969/j.issn.1001-3849.2025.11.007铝合金耐高温导电化学氧化工艺研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年11
页码:
54-59
栏目:
出版日期:
2025-11-30

文章信息/Info

Title:
Research on high-temperature resistant conductive chemical oxidation of aluminum alloys
作者:
刘路华
(西南磁学应用研究所,四川 绵阳 621000)
Author(s):
Liu Luhua*
(Southwest Institute of Applied Magnetics, Mianyang 621000, China)
关键词:
铝合金; 导电氧化; 高温烘烤; 工艺优化
Keywords:
aluminum alloy;  conductive oxidation;  high-temperature baking;  process optimization
分类号:
TQ153.2
文献标志码:
A
摘要:
传统导电氧化工艺制备的膜层在高温烘烤后经常出现花斑、脱落、色差等问题，限制了工艺的使用范围，为解决导电氧化膜的耐高温问题，采用控制变量法和正交试验，最终确定了最佳工艺条件：三氧化铬4 g/L，铁氰化钾0.5 g/L，氟化钠1 g/L，pH值为3，槽液温度为10 ℃，氧化时间为150 s。研究结果表明，优化后的导电氧化膜在150 ℃烘烤24 h后未出现色差、花斑、镀层脱落等质量问题且表现出良好的稳定性和耐腐蚀性，适用于高温环境中的铝合金零部件应用。通过机理与显微结构分析工艺参数对膜层结构和膜层耐高温性能影响，讨论了工艺优化的机制和未来的应用潜力。
Abstract:
The coating layers prepared by the traditional anodizing process often exhibit defects such as spotting, peeling, and color differences after high-temperature baking, which limits the application range of the process. To solve the issue of high-temperature resistance of the anodic oxide film, the variable control method and orthogonal experiment were employed. The optimal process conditions were finally determined as follows: chromium trioxide 4 g/L, potassium ferrocyanide 0.5 g/L, sodium fluoride 1 g/L, pH value 3, bath temperature 10 ℃, and anodizing time 150 s. The research results show that the optimized anodic oxide film did not exhibit color difference, spotting, or peeling after baking at 150 ℃ for 24 h, demonstrating good stability and corrosion resistance, making it suitable for the application of aluminum alloy components in high-temperature environments. The effects of process parameters on the structural evolution of oxide layers and their high-temperature performance degradation mechanisms were elucidated through integrated mechanism analysis and microstructural characterization, while the optimization methodology and prospective application scenarios were critically examined with industrial implementation considerations

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更新日期/Last Update: 2025-11-20