| 铜基体镀金层大气变色机理分析及对策 |
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| 引用本文： | 张勇强.铜基体镀金层大气变色机理分析及对策[J].机电元件,2011,31(2):12-19. |
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| 作者姓名： | 张勇强 |
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| 作者单位： | 四川华丰企业集团有限公司,四川绵阳,621000 |
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| 摘 要： | 本文对电连接器镀金接触体可能经常发生的表面红(黑)斑点现象进行了描述,结合现代的微观分析手段,从化学热力学和动力学两个层面进行了分析,为业界提供解决该类问题的思路及一般方法,减少制造业不必要的损失,希冀对社会可持续发展有所贡献.
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| 关 键 词： | 镀金层变色 红斑(红点) 黑斑(黑点) 电化学腐蚀 能谱仪 电解质 湿度 腐蚀动力学 |
An Analysis on Mechanism of Atmospheric Discoloring of Gold- Plated Copper Substrate and Its Countermeasures |
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| ZHANG Yong-qiang.An Analysis on Mechanism of Atmospheric Discoloring of Gold- Plated Copper Substrate and Its Countermeasures[J].Electromechanical Components,2011,31(2):12-19. |
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| Authors: | ZHANG Yong-qiang |
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| Affiliation: | ZHANG Yong-qiang(By Zhang Yongqiang,Sichuan Huafeng Enterprise Group Co.,Ltd.) |
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| Abstract: | The paper describes the phenomenon of discoloring,that is red（black） macula on the surface of gold-plated contact of electrical connectors,and combined with modern micro-analytical tools,analyzes them from two levels of chemical thermodynamics and kinetics,for the purpose to offer the industry with an idea and general ways to solve such the problem,and to reduce the unnecessary loss of the manufacturing industry,hoping to contribute to the sustainable development of the electronic industry. |
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| Keywords: | discoloring of gold layer red macula（red dots） black macula（black spots） electrochemical corrosion energy dispersive spectrometer（EDS） electrolyte humidity corrosion kinetics |
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