用于静电喷涂的金属粉体气力输送研究  

Study on Pneumatic Conveying of Metal Powder for Electrostatic Spraying

作　　者：张葆青[1] 王华[1] ZHANG Baoqing;WANG Hua(Institute of Fluid Physics,Chinese Academy of Engineering Physics,Mianyang 621000)

机构地区：[1]中国工程物理研究院流体物理研究所,绵阳621000

出　　处：《现代制造技术与装备》2021年第6期133-134,共2页Modern Manufacturing Technology and Equipment

摘　　要：利用气力输送技术,设计用于金属粉末喷涂的气力输送方案,以实现Sn微粒的气力输送。分析脉冲吐粉现象的原因,通过调节气压大小,解决喷涂稳定性问题,实现10μm的Sn颗粒在Φ124 mm×190 mm不锈钢内圆柱表面的喷涂,喷涂表面的面密度误差在±20%以内。Using pneumatic conveying technology,a pneumatic conveying scheme for metal powder spraying was designed to realize the pneumatic conveying of Sn particles,and the reason of pulse powder spraying was analyzed.By adjusting the air pressure,the problem of spraying stability was solved,and 10μm Sn particles were sprayed on the inner cylindrical surface ofΦ124 mm×190 mm stainless steel,and the area density error of the sprayed surface was less than 20%.

关 键 词：气力输送 脉冲吐粉现象 喷涂稳定性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]