铝板在双面喷流加热和辊底摆动过程中的温度均匀性

doi:10.13251/j.issn.0254-6051.2022.01.030

金属热处理 ›› 2022, Vol. 47 ›› Issue (1): 178-184.DOI: 10.13251/j.issn.0254-6051.2022.01.030

铝板在双面喷流加热和辊底摆动过程中的温度均匀性

赵延涛¹, 姜泽毅^1,2, 张欣茹^1,3, 王帝杰¹

1.北京科技大学能源与环境工程学院, 北京 100083;
2.冶金工业节能减排北京市重点实验室, 北京 100083;
3.北京高校节能与环保工程研究中心, 北京 100083

收稿日期:2021-09-27 修回日期:2021-11-22 出版日期:2022-01-25 发布日期:2022-02-18
通讯作者: 姜泽毅,教授,E-mail:zyjiang@ustb.edu.cn
作者简介:赵延涛(1996—),男,硕士研究生,主要研究方向为工业热过程数值模拟,E-mail:2569316146@qq.com。
基金资助:
国家重点研发计划(2018YFB0605904)

Temperature uniformity of aluminum plate during double-sided jet heating and roller swing

Zhao Yantao¹, Jiang Zeyi^1,2, Zhang Xinru^1,3, Wang Dijie¹

1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Beijing Key Laboratory for Energy Saving and Emission Reduction of Metallurgical Industry, Beijing 100083, China;
3. Beijing Engineering Research Center for Energy Saving and Environmental Protection, Beijing 100083, China

Received:2021-09-27 Revised:2021-11-22 Online:2022-01-25 Published:2022-02-18

摘要/Abstract

摘要： 基于辊底式铝板淬火炉加热工艺,针对板材双面多喷口气体喷流换热与内部导热的耦合问题,建立了板材喷流加热过程数理模型,研究了喷口排布、热风流量、铝板厚度和辊底摆动周期对板材表面换热及板温均匀性的影响。结果表明,喷口垂直喷流的换热效果优于倾斜喷流;垂直喷流时喷口以1/4间距错排布置时,铝板表面温度均匀性最好;喷流造成的铝板表面温度不均匀主要集中在加热前期,易造成板材的变形,且对于薄板更加显著;可采用较小的热风流量及较短的辊底摆动周期以改善铝板表面温度均匀性,减小材料的应力和应变。

关键词: 辊底炉, 铝板, 喷流加热, 喷口排布, 温度均匀性

Abstract: Based on the heating process of aluminum plates in a roller-hearth quenching furnace, in view of the coupling problem of the double-sided multi-nozzle gas jet heat transfer and internal heat conduction of the plate, a mathematical model of jet heating process of the plate was established, and the influence of nozzle arrangement, hot air flow, aluminum plate thickness, and swinging period of roller-hearth on the surface heat transfer and the temperature uniformity of the plate was studied. The results show that the heat transfer effect of vertical jet of the nozzle is better than that of the inclined jet. When the nozzles at the vertical jet are staggered with 1/4 pitch, the surface temperature uniformity of the aluminum plate is the best. The uneven surface temperature of the aluminum plate caused by the jet flow is mainly concentrated in the early stage of heating, which is easy to cause deformation of the plate, and especially significant for the thin plate. A smaller hot air flow and a shorter swing period of roller-hearth can be used to improve the uniformity of surface temperature of the aluminum plate and reduce stress and strain of the material.

Key words: roller-hearth furnace, aluminum plate, jet heating, nozzle arrangement, temperature uniformity

中图分类号:

TK124

赵延涛, 姜泽毅, 张欣茹, 王帝杰. 铝板在双面喷流加热和辊底摆动过程中的温度均匀性[J]. 金属热处理, 2022, 47(1): 178-184.

Zhao Yantao, Jiang Zeyi, Zhang Xinru, Wang Dijie. Temperature uniformity of aluminum plate during double-sided jet heating and roller swing[J]. Heat Treatment of Metals, 2022, 47(1): 178-184.

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铝板在双面喷流加热和辊底摆动过程中的温度均匀性

Temperature uniformity of aluminum plate during double-sided jet heating and roller swing

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