| 无铅波峰焊钎料氧化渣动态形成特点 |
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| 引用本文： | 王修利,史建卫,钱乙余,谢军.无铅波峰焊钎料氧化渣动态形成特点[J].电子工业专用设备,2007,36(8):36-44. |
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| 作者姓名： | 王修利 史建卫 钱乙余 谢军 |
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| 作者单位： | 1. 哈尔滨工业大学现代焊接生产技术国家重点试验室,黑龙江,哈尔滨,150001
2. 日东电子科技(深圳)有限公司,广东,深圳,518103 |
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| 摘 要： | 按照分布规律,将锡炉熔融钎料表面氧化物分为A～E5个氧化物区,分析了各区域氧化物的特点,研究了A、B2个区氧化渣的动态形成过程。A区氧化渣是波峰的瀑布效应引起的,主要在前喷嘴与前方炉壁之间的区域形成,其形成原因有剪切成渣、氧化物夹带钎料运动堆积成渣和负压吸氧3种。B区氧化渣由氧化膜包裹钎料堆积而成,是两喷嘴间液面波动和钎料定向流动共同作用的结果。
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| 关 键 词： | 无铅波峰焊 氧化渣 瀑布效应 |
| 文章编号： | 1004-4507（2007）08-0036-09 |
| 修稿时间： | 2007-07-19 |
Dynamic Characteristic of the Solder Dross Form During Lead-free Wave Soldering |
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| WANG Xiu-li,SHIhi Jian-wei,QIAN Yi-yu,XIE Jun.Dynamic Characteristic of the Solder Dross Form During Lead-free Wave Soldering[J].Equipment for Electronic Products Marufacturing,2007,36(8):36-44. |
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| Authors: | WANG Xiu-li SHIhi Jian-wei QIAN Yi-yu XIE Jun |
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| Institution: | 1 .Harbin Institute of Technology, Harbin, 150001, China; 2.Sun East Electronic Technology Company Lt.d, Shenzhen, 518103 China |
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| Abstract: | In this paper, according to the distribution rules, the oxide area on the surface of fusing solder in the pot is divided into five oxide area A-E. The characteristic of each area of oxide is analyzed. The dynamic establishment of dross in both A and B areas is analyzed. The dross in A area is caused by Waterfall Effect of wave, and is mainly generated in the area between the nozzle and pot wall. The resons to cause this dross include shearing of the interface of oxide and solder, the movement of oxide included solder, and negative pressure inhaling of oxygen. Dross in B area is generated during oxide film moving, stacking and covering the solder, and this is the result of both the fluctuation of the liquid level between two nozzles and the directional fluxion of the solder. |
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| Keywords: | Lead-free wave soldering Dross Waterfall effect |
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