| 雾化器导液管内径对无铅焊锡粉末形貌及粒度分布的影响 |
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| 引用本文： | 许天旱,王党会.雾化器导液管内径对无铅焊锡粉末形貌及粒度分布的影响[J].粉末冶金技术,2009,27(3). |
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| 作者姓名： | 许天旱 王党会 |
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| 作者单位： | 西安石油大学材料科学与工程学院,西安,710065 |
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| 基金项目： | 西安石油大学青年基金 |
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| 摘 要： | 本试验利用自行设计的超音速雾化制粉装置,研究了导液管内径对SnAgCu系无铅焊锡粉末有效雾化率、粒度分布、球形度及氧含量的影响.研究结果表明:在过热度为250℃,导液管外径为7mm,喷头突出为4 mm,雾化压力为0.7MPa,雾化介质为氮气条件下,导液管内径为3mm,雾化粉末具有最佳的球形度、表面光滑度及粒度分布,同时具有较高的有效雾化率和较低的氧含量;随着导液管内径减小,粉末明显细化,有效雾化率升高,但粒度分布的离散度变大;随着导液管内径增大,粉末有效雾化率急剧降低,粒度分布变差,且表面更粗糙,形状更不规则.
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| 关 键 词： | SnAgCu系无铅焊锡粉末 导液管内径 有效雾化率 粒度分布 微观形貌 |
Effect of inner diameter of delivery tube end of atomizer on morphology and size distribution of free-lead solder powder |
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| Xu Tianhan,Wang Danghui.Effect of inner diameter of delivery tube end of atomizer on morphology and size distribution of free-lead solder powder[J].Powder Metallurgy Technology,2009,27(3). |
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| Authors: | Xu Tianhan Wang Danghui |
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| Abstract: | The effects of inner diameter of delivery tube end on the properties such as efficient atomization efficiency,size distribution,sphericity of free-lead solder powder in Sn-Ag-Cu system were investigated.The results show: when inner diameter of delivery tube end is 3.0mm size distribution,surface smoothness and sphericity of free-lead solder power are optimal,the efficient atomization efficiency is higher,and the oxygen content is lower.With the inner diameter of delivery tube end decreasing,the powder is si... |
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| Keywords: | free-lead solder power of Sn-Ag-Cu system inner diameter of delivery tube end efficient atomization efficiency size distribution morphology |
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