| 废线路板电子元器件高效拆解熔焊效率影响因素研究 |
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| 引用本文： | 刘国勇,张少军,朱冬梅,油红科,尹凤福.废线路板电子元器件高效拆解熔焊效率影响因素研究[J].北京工业大学学报,2012,38(4):596-601. |
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| 作者姓名： | 刘国勇 张少军 朱冬梅 油红科 尹凤福 |
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| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083
2. 海尔集团技术研发中心,青岛,266101 |
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| 基金项目： | 基金项目:国家自然科学基金资助项目 |
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| 摘 要： | 针对废线路板资源化处理,采用结合拆卸元器件的回收方式,以空气作为熔焊加热介质,采用数值模拟的方式,以流体分析软件FLUENT为工具,研究了熔焊时热风温度、速度和喷嘴(即热风出口)的结构尺寸对加热效率和焊点附近温度场分布的影响.研究发现,最佳热风温度范围为200～230℃,最佳热风速度在7 m/s左右;喷嘴结构尺寸对加热效率和焊点附近的温度场分布产生影响;喷嘴距线路板30 mm时,合理的喷嘴尺寸为喷嘴上底直径D在9 mm左右,喷嘴α角在20°～30°之间,喷嘴高度h在4 mm左右.
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| 关 键 词： | 线路板 回收再利用 熔焊 电子元器件 |
Efficiency of Influencing Factors on Dismantling Electronic Components of Waste PCBs |
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| LIU Guo-yong,ZHANG Shao-jun,ZHU Dong-mei,YOU Hong-ke,YIN Feng-fu.Efficiency of Influencing Factors on Dismantling Electronic Components of Waste PCBs[J].Journal of Beijing Polytechnic University,2012,38(4):596-601. |
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| Authors: | LIU Guo-yong ZHANG Shao-jun ZHU Dong-mei YOU Hong-ke YIN Feng-fu |
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| Affiliation: | 1.School of Mechanical Engineering,Beijing University of Science and Technology,Beijing 100083,China 2.Haier Group’s R&D Center,Haier Group,Qingdao 266101,China) |
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| Abstract: | A method of dismantling electronic components in waste PCBs resource treatment process is proposed.Air is used as the desoldering heating medium,and the process of desoldering is simulated by fluid software-Fluent.The factors of hot blast temperature and speed and the structure of nozzle are analyzed.Results show that the optimum hot blast temperature is 473-503 K and speed is about 7 m/s.Meanwhile,the structure of nozzle not only influences the heating efficiency,but also the temperature field distribution.Reasonable sizes of the nozzle are 9 mm in diameter,20°-30° in angle of α,and 4 mm in height,when the distance from the nozzle to PCB is 30 mm. |
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| Keywords: | PCBs resource reuse desoldering electronic components |
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