Influences of Atomizing Pressure on Preparation Processing of Lead-free Solder Powder
An investigation on the melt delivery tube tip pressure and the effective atomizing efficiency of atomizing powder was carried out. The results show that all of melt delivery tube tip pressures are negative value in the atomization gas pressure range of 0.4~0.9 MPa,and they monotonously increase with increasing the atomizing pressure;when the atomizing pressure is higher than 0.7 MPa,the negative pressure of the melt delivery tube tip is slowly increasing with continuously increasing the atomizing pressure;the atomized powder possesses higher effective atomizing efficiency,more uniform size distribution,better sphericity and smoother surface at the atomizing pressure of 0.7 MPa and the pressure of the melt delivery tube tip of-39.44 kPa.
Tianhan Xu Maiqun Zhao Danghui Wang
School of Materials Science and Engineering,Xian Shiyou University,Xian 710065,PR China School of Materials Science and Engineering,Xian University of Technology,Xian 710048,PR China
国际会议
哈尔滨
英文
2091-2094
2011-03-26(万方平台首次上网日期,不代表论文的发表时间)