T型结晶器电渣重熔复合轧辊渣池热电场的数值模拟

doi:10.13228/j.boyuan.issn1006-9356.20200226

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (3534 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要针对自耗电极环形焊接、T型结晶器抽锭电渣重熔制备复合轧辊的过程,利用ANSYS软件,建立了三维有限元模型,对渣池中的电位、电流密度和温度场的分布,以及电极位置变化的影响进行了数值模拟。计算过程采用热电耦合法,并考虑了电场的集肤效应。模拟结果表明,集肤效应的最强位置和最大电流都集中在自耗电极的表面;高温区在自耗电极和辊芯之间;电极位置的变化对渣池的电流密度分布影响比较大,当自耗电极与辊芯的距离增加10 mm时,渣池内最高温度降低20 K,上层渣池的平均温度有所提高。最后对数值模拟结果进行试验验证。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	作者相关文章
	邓鑫
	崔阳

关键词 ： T型结晶器, 电渣重熔, 复合轧辊, 热电场, 数值模拟

Abstract：According to the process of making composite roll by electroslag remelting with T-mold, consumable electrode ring welding and drawing, a three-dimensional finite element model is established by using ANSYS software. The distribution of potential, current density and temperature field in slag pool and the influence of electrode position change are numerically simulated. The method of thermoelectric coupling is used in the calculation, and the skin effect in the electric field model is considered. The results show that the strongest position of skin effect and the maximum current are concentrated on the surface of the consumable electrode. The high temperature zone is between the consumable electrode and the roll core. The change of electrode position has great influence on the current density distribution of slag pool. When the distance between the electrode and the roll core is increased by 10 mm, the maximum temperature in the slag pool is decreased by 20 K, and the average temperature in the upper slag pool is increased. Finally, the numerical simulation results are verified by experiments.

Key words： T-mold electroslag remelting composite roll thermoelectricity field numerical simulation

收稿日期: 2020-04-24

基金资助:国家自然科学基金资助项目(51674140;61903169); 辽宁省自然科学基金资助项目(2019-MS-173;2019-BS-126); 辽宁科技大学人才基金资助项目(601011507-21)

作者简介: 邓鑫(1980—), 男, 博士, 副教授; E-mail: kddengxin@126.com

引用本文:

邓鑫, 崔阳. T型结晶器电渣重熔复合轧辊渣池热电场的数值模拟[J]. 中国冶金, 2020, 30(11): 35-40. DENG Xin, CUI Yang. Numerical simulation of thermoelectricity field in slag pool of electroslag remelting composite roll with T-mold[J]. China Metallurgy, 2020, 30(11): 35-40.

链接本文:

http://www.zgyj.ac.cn/CN/10.13228/j.boyuan.issn1006-9356.20200226 或 http://www.zgyj.ac.cn/CN/Y2020/V30/I11/35

[1]	符定梅, 符寒光. 复合轧辊制造技术的研究进展[J]. 大型铸锻件,2006,5(2):48.
[2]	俞誓达,陈菡. 我国轧辊业现状及发展中应重视的问题[J]. 钢铁,2007,7(1):1.
[3]	董艳伍, 姜周华, 李正邦, 等. 高速钢复合轧辊的生产技术及其应用现状[J]. 东北大学学报:自然科学版,2006,27(增刊2):23.
[4]	韩翔. 高速钢复合轧辊材料及制造技术的研究进展[J]. 热加工工艺,2013,42(18):10.
[5]	Pellizzari M, Molinari A, Straffelini G. Tribological behaviour of hot rolling rolls[J]. Wear,2005,259(7):1281.
[6]	李秀青,宋延沛. 双金属复合轧辊铸造工艺的研究现状与展望[J]. 材料研究与应用,2010,4(3):164.
[7]	姜周华, 董艳伍, 李花兵, 等. 特殊钢特种冶金技术的新发展[J]. 中国冶金,2011,21(12):1.
[8]	王贵明.铸造复合轧辊的几种新方法[J].特种铸造及有色合金,1999(4):14.
[9]	JIA Y U, JIANG Z, LIU F, et al. Effects of metal droplets on electromagnetic field, fluid flow and temperature field in electroslag remelting process[J]. ISIJ International, 2017, 57(7):1205.
[10]	罗丽萍, 耿茂鹏, 徐万里, 等. 基于ANSYS轧辊表面电渣加热渣池热电场模拟研究[J].铸造,2009,58(4):353.
[11]	吴春京, 沈定钊, 杨国明, 等. 电渣工艺复合轧辊制造装置数值模拟辅助设计[J]. 钢铁,1999,34(4):61.
[12]	文甜洁, 张立峰. 电渣重熔中夹杂物穿越渣/熔滴界面行为[J]. 中国冶金,2018,28(增刊1):34.
[13]	曲敬龙, 杨树峰, 陈正阳, 等. 真空自耗冶炼过程数值仿真研究进展[J]. 中国冶金,2020,30(1):1.
[14]	CAO Yu-long, JIANG Zhou-hua, DONG Yan-wu, et al. Research on the bimetallic composite roll produced by an improved electroslag cladding method mathematical simulation of the power supply circuits [J]. ISIJ International, 2018, 58(6): 1052.
[15]	薛瑞, 张燕超, 张彩军, 等. 转炉底吹供气方式对熔池混匀效果的数值模拟[J]. 中国冶金,2020,30(3):13.
[16]	Li Bao-kuan, Wang F, Tsukihashi F. Current magnetic field and joule heating in electroslag remelting processes[J]. ISIJ International, 2012, 52(7):1289.