| 可伐合金与玻璃润湿规律及引线断腿问题的研究 |
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| 引用本文： | 罗大为,沈卓身,李雪. 可伐合金与玻璃润湿规律及引线断腿问题的研究[J]. 金属热处理, 2012, 0(2): 74-77 |
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| 作者姓名： | 罗大为 沈卓身 李雪 |
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| 作者单位： | 深圳职业技术学院化生学院;北京科技大学材料学院;深圳光启高等理工研究院 |
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| 基金项目： | 深圳市科技局项目资助(项目编号JC201006020768A) |
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| 摘 要： | 采用座滴法研究了BH-G/K玻坯和含有15wt%的Al2O3的改性玻坯在具有氧化膜的可伐合金表面的润湿规律,用数码显微镜观察了玻璃在可伐合金表面的铺展形貌。研究结果表明,BH-G/K玻坯在可伐合金表面润湿后会在玻璃基体外延产生晕圈,这是导致金属外壳引线根部上方存在玻璃亮带的原因。改性玻坯在可伐合金表面润湿后几乎没有晕圈产生,因而不会在引线根部产生玻璃亮带。现场试验结果表明,采用改性玻璃代替BH-G/K玻坯的方法,可以解决引线根部锈蚀断腿的问题。
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| 关 键 词： | 可伐合金 玻璃 锈蚀 润湿 |
Wetting behavior of glass on Kovar alloy and corrosion problem of lead root |
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| LUO Da-wei,SHEN Zhuo-shen,LI Xue. Wetting behavior of glass on Kovar alloy and corrosion problem of lead root[J]. Heat Treatment of Metals, 2012, 0(2): 74-77 |
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| Authors: | LUO Da-wei SHEN Zhuo-shen LI Xue |
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| Affiliation: | 1.School of Applied Chemistry and Biotechnology,Shenzhen Polytechnic,Shenzhen Guangdong 518055,China; 2.School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China; 3.Shenzhen Kuang-Chi Institute of Advanced Technology,Shenzhen 518055,China) |
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| Abstract: | The wetting behavior of BH-G/K glass bead and the improved glass bead with 15wt% Al2O3on Kovar alloy with oxides was investigated by the sessile drop method.The spreading pattern was observed by the VHX-100K digital microscopy.The results show that halos are created around the glass base when the BH-G/K glass bead is wetted on the Kovar alloy,and it is the key reason of glass bright band occurring at the upper side of lead roots.But it is not the case when the BH-G/K glass bead is exchanged with the improved glass bead,in this case,the glass do not spread on the Kovar alloy and the halos are not created.The results of the field experiment show that the corrosion problem of lead root is not present forever,when the BH-G/K glass bead is exchanged with the improved glass bead. |
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| Keywords: | Kovar alloy glass corrosion wetting |
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