摘要
采用CO2+冰晶石粉-KOH溶液为模拟研究体系,证实了铝液喷粉净化 时粉剂在气泡表面形成固态膜,熔化后以液态盐膜的形式包围着整个气泡, 吸附和溶解气泡表面的氧化膜,使熔池中的氢顺利扩散进入气泡中,从而强 化气泡去氢效果这一理性推测.试验结果还表明:粉剂强化气泡的去氢效果 受供粉量、气流量和旋转喷头转速三因素的影响.旋转喷头喷粉能大大改善 气泡去氢的动力学条件.这一研究结果,为将旋转喷头引入到喷射技术中提 供了科学的试验依据.
By means of C02-Na3A1F6-KOH aqueous solution as the simulant system ,the authors have proved that solid powder has hardening constituent function on the removal of H by gas bubbles. The experimental results show that spinning-injecting can greatly improve the dynamics of the removal of H by gas bubbles. All these provide theoretical and experimental bases for combining spinning blow head with injecting technology.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1993年第4期414-419,共6页
Journal of Dalian University of Technology
基金
国家教委博士点专项研基资助项目
关键词
喷射冶金
净化
粉剂
气泡
氢
jet metallurgy
purification/water simulation