CAJ | 학술논문

利用自行设计的超音速雾化制粉装置,探索了无铅焊锡粉末雾化过程中存在的问题,并提出解决方法.结果表明:随着雾化合金量的增加,粉末有效雾化率急剧下降;通过改造设备,发现雾化合金量为5kg时,水平喷气法提高粉末有效雾化率效果最好,有效雾化率达到74%,且粘结现象明显减少,片状粉末增加不显著;综合增加高度法、水平喷气法和添加不锈钢衬垫法,有效雾化率为78%,且雾化粉末具有良好的综合性能.
이용자행설계적초음속무화제분장치,탐색료무연한석분말무화과정중존재적문제,병제출해결방법.결과표명:수착무화합금량적증가,분말유효무화솔급극하강;통과개조설비,발현무화합금량위5kg시,수평분기법제고분말유효무화솔효과최호,유효무화솔체도74%,차점결현상명현감소,편상분말증가불현저;종합증가고도법、수평분기법화첨가불수강츤점법,유효무화솔위78%,차무화분말구유량호적종합성능.
The problems which were found in lead-free solder powder atomizing process were explored with supersomc atomization designed by ourselves,and the measures were put forward to resolve the problem.The results show that the powder efficient atomization efficiency rapidly reduces with the increase of the alloy mass;through modifying eqmpment,it is found that level spraying gas method is optimal in all methods,its efficient atomization efficiency is 74% when atomizing alloy mass is 5kg,and binding phenomenon significantly reduces,the flake powder does not increases obviously;the efficient atomization efficiency of the synthetical method including adding height,level spraying gas,stainless steel laying is 78%,and the atomizing powder has better combination property.