CAJ | 학술논문

利用自制的超音速雾化制粉装置,探索了无铅焊锡粉末制备过程中影响粉末质量的因素,并提出解决问题的方法.结果表明:改变熔化室气氛和减少保温时间均能显著提高无铅焊锡雾化粉末的质量;在提高有效雾化率和降低氧含量方面,改变熔化室气氛比减少保温时间效果更显著,且同时改变熔化室气氛和减少保温时间超过其单独作用的效果;通过同时改变熔化室气氛和减少保温时间,能够明显改善雾化粉末的粒度分布、球形度和表面光滑度.
이용자제적초음속무화제분장치,탐색료무연한석분말제비과정중영향분말질량적인소,병제출해결문제적방법.결과표명:개변용화실기분화감소보온시간균능현저제고무연한석무화분말적질량;재제고유효무화솔화강저양함량방면,개변용화실기분비감소보온시간효과경현저,차동시개변용화실기분화감소보온시간초과기단독작용적효과;통과동시개변용화실기분화감소보온시간,능구명현개선무화분말적립도분포、구형도화표면광활도.
The factors which affected powder quality in the process of lead-free solder powder preparation were explored by supersonic atomization designed by ourselves,and some measures which can resolve me quality problems were found.The results show that it Can significantly improve powder quality through changing melt chamber gas and reducing holding time;changing the melt chamber gas possesses has mole significant effectiveness than reducing holding time for improving the efficient atomization efficiency of powder and decreasing the oxygen content of powder;the effectiveness of changing both melt chamber gas and holding time is better than either of their effectiveness,it can notably improve surface smoothness of powder through changing both the melt chamber gas and the holding time.