[1]张宇超,邓名姣.doi: 10.3969/j.issn.1001-3849.2026.03.007新能源汽车Cu-Ni-Cr3+电镀对ABS塑料件耐腐蚀性能的影响[J].电镀与精饰,2026,(03):52-61.
　ZHANG Yuchao,DENG Mingjiao.Effects of Cu-Ni-Cr3+ electroplating on corrosion resistance of ABS plastic parts in new energy vehicles[J].Plating & Finishing,2026,(03):52-61.
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doi: 10.3969/j.issn.1001-3849.2026.03.007新能源汽车Cu-Ni-Cr3+电镀对ABS塑料件耐腐蚀性能的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年03
页码:
52-61
栏目:
出版日期:
2026-03-31

文章信息/Info

Title:
Effects of Cu-Ni-Cr3+ electroplating on corrosion resistance of ABS plastic parts in new energy vehicles
作者:
张宇超1; 邓名姣2
(1. 保定开放大学 产业学院,河北 保定 071000 ;2. 保定职业技术学院 机电工程系,河北 保定 071000)
Author(s):
ZHANG Yuchao1;  DENG Mingjiao2
(1. Industry College, Baoding open University, Baoding 071000, China; 2. Department of Mechanical and Electrical Engineering Baoding Vocational and Technical College, Baoding 071000, China)
关键词:
新能源汽车; 塑料电镀; 自然环境腐蚀; 电化学腐蚀
Keywords:
new energy vehicles;  plastic electroplating;  natural environmental corrosion;  electrochemical corrosion
分类号:
TQ153.3
文献标志码:
A
摘要:
为深入分析环保型三价铬电镀体系在新能源汽车塑料件上的耐腐蚀性能，以Cu-Ni-Cr3+电镀体系为研究对象，采用铜加速乙酸盐雾试验、自然环境暴露测试、电化学极化与阻抗谱分析等方法，系统考察了不同Ni镀层厚度、电位差和微孔数对电镀材料耐腐蚀能力的影响。72 h铜加速乙酸盐雾试验结果表明，随着Ni层厚度从12.7 μm增至25.7 μm，样品腐蚀等级由R3改善至R1。自然暴露90 d后样品斑点密度由9.4 个/cm2降至1.2 个/cm2，且样品电荷转移电阻值由5.2 kΩ?cm2提高至14.8 kΩ?cm2，电化学稳定性显著提升。此外，适当控制电位差与微孔密度可进一步增强牺牲阳极效应，有效延缓腐蚀传播。研究结果为Cu-Ni-Cr3+塑料电镀体系在新能源汽车零部件中的结构优化与耐蚀性能提升提供了理论依据与工艺参考，也为推广绿色环保电镀技术奠定了实践基础。
Abstract:
To deeply analyze the corrosion resistance of the environmentally friendly trivalent chromium electroplating system on plastic parts of new energy vehicles, the Cu-Ni-Cr3+ electroplating system is used as the research object, such as copper-accelerated acetic acid salt spray test, natural environment exposure test, electrochemical polarization and impedance spectroscopy were analyzed. The effects of different Ni coating thicknesses, potential differences and the number of micropores on the corrosion resistance of electroplating materials were systematically investigated. 72 h copper-accelerated acetic acid salt spray test results show that the corrosion grade of the sample improves from R3 to R1, while the Ni layer thickness increases from 12.7 to 25.7 μm. After 90 days of natural exposure, the spot density of the sample decreased from 9.4 to 1.2 piece/cm2, and the charge transfer resistance value of the sample increased from 5.2 to 14.8 kΩ?cm2, enhancing the electrochemical significantly stability. In addition, appropriately controlling the potential difference and micropore density can furtherly enhance the sacrificial anode effect and effectively delay the spread of corrosion. The research results provide a theoretical basis and process reference for the structural optimization and corrosion resistance improvement of the Cu-Ni-Cr 3+ plastic electroplating system in new energy vehicle parts, and also lay a practical foundation for the promotion of green and environmentally friendly electroplating technology

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更新日期/Last Update: 2026-03-11