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    许天旱, 王党会. 过热度对Sn3Ag2.8Cu合金雾化粉体颗粒形貌的影响[J]. 机械工程材料, 2010, 34(1): 24-27.
    引用本文: 许天旱, 王党会. 过热度对Sn3Ag2.8Cu合金雾化粉体颗粒形貌的影响[J]. 机械工程材料, 2010, 34(1): 24-27.
    shu
    XU Tian-han, WANG Dang-hui. Effect of Superheat on Particle Morphology of Atomized Sn3Ag2.8Cu Alloy Powders[J]. Materials and Mechanical Engineering, 2010, 34(1): 24-27.
    Citation: XU Tian-han, WANG Dang-hui. Effect of Superheat on Particle Morphology of Atomized Sn3Ag2.8Cu Alloy Powders[J]. Materials and Mechanical Engineering, 2010, 34(1): 24-27.
    shu

    过热度对Sn3Ag2.8Cu合金雾化粉体颗粒形貌的影响

    Effect of Superheat on Particle Morphology of Atomized Sn3Ag2.8Cu Alloy Powders

      摘要
    • 摘要: 为了加速我国电子行业无铅化进程,利用自行设计的超音速雾化制粉试验装置,研究了过热度对Sn3Ag2.8Cu合金无铅焊锡雾化粉体颗粒形貌的影响.结果表明:通过调整合金的过热度,能够控制雾化粉体中卫星颗粒及异形颗粒的比例;当合金过热度为150 ℃时,雾化粉体中卫星颗粒和异形颗粒最少,颗粒球形度最好;当合金过热度为100 ℃时,雾化粉体颗粒球形度较差;当合金过热度为250 ℃时,雾化粉体卫星颗粒和片状颗粒较多.

       

      Abstract: To accelerate the lead-free process in the electronic industry in our country,the effect of superheat condition on morphology of the Sn3Ag2.8Cu alloy lead-free solder powder particles was studied by using self-designed supersonic atomization device.The results show that the proportion of the satellite particles and special shaped particles could be controlled through adjusting the superheat condition for the alloy.Under 150 ℃ superheat condition,the proportion of the satellite particles and special shaped particles were the least,and the sphericity of the particles was optimal.And the sphericity of the particles was worse under 100 ℃ superheat condition.There were more satellite particles and flake particles in the atomized powders under 250 ℃ superheat condition.

       

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