连铸恒温出坯电磁感应加热温度场分布与演变

doi:10.13228/j.boyuan.issn1005-4006.20210030

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (20628 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Constant temperature billet of continuous casting is an effective means to realize direct rolling process. In order to achieve the purpose of constant temperature casting of round billet, a method of constant temperature casting by variable power induction heating in the cutting section of continuous casting billet was put forward according to the principle of induction heating. Feasibility study on the method was performed by numerical simulations. The numerical results showed that magnetic flux density and induced electric current are induced inside the billet by applying alternating current into coils. Magnetic flux density and induced electric current are assembled in the vicinity of the billet surface. In addition, Joule heating induced by induced electric current is beneficial to a uniform distribution of temperature in round billet. The effect of induction heating on constant temperature round billet first increases and then decreases with the increase of frequency or the velocity of billet. It indicated that a constant temperature round billet can be obtained by induction heating with a variable power. In order to optimize induction heating power, a theoretical model on induction heating power was established. According to the theoretical model, induction heating power achieving constant temperature billet is related to geometric dimensions, material properties, initial temperature and velocity of billet and the length of coils.

Key words： direct rolling constant temperature billet induction heating numerical simulation temperature field

Received: 08 March 2021

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	XU Yan-yi
	ZHANG Yun-hu
	LI Qing-ping
	ZHENG Tian-qing
	ZHAI Qi-jie

Cite this article:

XU Yan-yi,ZHANG Yun-hu,LI Qing-ping等. Distribution and evolution of temperature in constant temperature billet of continuous casting process by induction heating[J]. CONTINUOUS CASTING, 2021, 40(4): 43-58.

URL:

http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20210030 OR http://www.chinamet.cn/Jweb_lz/EN/Y2021/V40/I4/43

[1]	干勇,倪满森,余志祥. 现代连续铸钢实用手册[M].北京:冶金工业出版社,2010.
[2]	肖宏,余超,刘剑,等. 板坯连铸直轧感应补热有限元分析与试验[J].钢铁,2017,52(2):44.
[3]	韩占光. 连铸方坯直接轧制表面温度控制探究[J].连铸,2020(2):23.
[4]	郭茂先,顾根华. 连铸连轧温度补偿感应加热装置的研制[J].工业加热,1995(1):3.
[5]	张文旭,李沈毅,沈铁成,等. 提高连铸直轧工艺连铸坯温度的途径探讨[J].山东冶金,2020,42(5):4.
[6]	范越,李胜利,艾新港,等. 窄窗口控制及大数据在直轧的应用现状与展望[J].中国冶金,2018,28(9):8.
[7]	王学兵,张兴中,仇圣桃,等. 高速连铸直轧工艺的恒温出坯工艺参数研究[J].热加工工艺,2017,46(7):128.
[8]	金辉. 电磁感应加热技术与应用[J].连铸,2019(2):62.
[9]	Cho K H. Coupled electro-magneto-thermal model for induction heating process of a moving billet[J].International Journal of Thermal Sciences,2012,60:195.
[10]	肖宏,刘剑,余超. 板坯直轧感应加热的有限元模拟[J].钢铁研究学报,2016,28(8):44.
[11]	何浩,王强,肖红,等. 方坯轧制在线感应加热数值模拟与设计优化[J].连铸,2021(1):15.
[12]	王学兵,张兴中,仇圣桃,等. 直轧过程中铸坯感应补热技术的研究[J].热加工工艺,2019,48(9):105.
[13]	陈庆安,张建宇,王艳辉,等. 方坯直轧工艺中头尾温差消除过程数值模拟[J].中国冶金,2019,29(9):23.
[14]	张云虎,徐燕祎,叶春洋,等. 一种基于电磁感应加热连铸恒温出坯的装置及方法: 中国,CN201910182915.1[P].2020-08-04.
[15]	郭硕鸿. 电动力学[M].3版. 北京:高等教育出版社,2008.
[16]	陶文铨. 数值传热学[M].2版. 西安:西安交通大学出版社,2001.
[17]	付正博. 感应加热与节能[M].北京:机械工业出版社,2008.