东北大学学报（自然科学版）

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (4): 509-516.DOI: 10.12068/j.issn.1005-3026.2022.04.008

• 材料与冶金 • 上一篇    下一篇

镀锡板无铬钝化液喷射特性数值模拟

李树贤， 牛文勇， 黄钰迪， 李建平   

  1. (东北大学 轧制技术及连轧自动化国家重点实验室， 辽宁 沈阳110819)
  • 修回日期:2021-06-18 接受日期:2021-06-18 发布日期:2022-05-18
  • 通讯作者: 李树贤
  • 作者简介:李树贤(1996-)，男，山西霍州人，东北大学硕士研究生； 李建平(1958-)，男，吉林长春人，东北大学教授，博士生导师.
  • 基金资助:
    国家重点研发计划项目(2017YFB0304100).

Numerical Simulation of Spray Characteristics of Chromium-Free Passivation Solution for Tin Plate

LI Shu-xian， NIU Wen-yong， HUANG Yu-di， LI Jian-ping   

  1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China.
  • Revised:2021-06-18 Accepted:2021-06-18 Published:2022-05-18
  • Contact: LI Jian-ping
  • About author:-
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摘要： 通过计算流体力学软件数值模拟和物理实验相结合的方式，研究了喷涂时喷盘的转速、间距、喷盘与带钢之间的距离及喷盘数量对粒度分布和雾化效果的影响.研究表明:喷盘转速越高，雾化出的液滴速度越快，液滴直径越小，雾化效果越好，选取喷盘转速为6000r/min;喷盘与带钢之间的距离为100mm时，带钢宽度范围内液滴粒度分布效果最佳;喷盘之间的间距变化时，液滴干涉区域和液滴之间的碰撞随之变化，间距80mm效果最佳.采用获得的参数制得的无铬钝化产品优于原钝化产品，表明了参数选取的合理性.

关键词: 无铬钝化;喷盘雾化;干涉现象;液滴破碎;液滴分布

Abstract: Combining numerical simulation with computational fluid dynamics software and physical experiment， the effects of spray disc rotation speed， spacing between discs， distance between spray disc and steel strip and the number of spray discs on the particle size distribution and atomization result of spraying for steel passivation were studied. The results show that， the faster the disc speed is， the faster is the atomized droplet speed， the smaller is the size of the droplets， and the better is the atomization effect. The disc speed is selected as 6000r/min. When the distance between spray disc and steel strip is 100mm， the droplets size distribution on strip is the best. When the spacing between spraying discs changes， the droplets interference area and collision between droplets will change accordingly， and 80mm is the best spacing. The chromium-free passivation product prepared by using the selected parameters is better than the original passivation product， showing the rationality of the parameter selection.

Key words: chromium-free passivation; spray disc atomization; interference phenomenon; droplet breaking; droplet distribution

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