Acta Metall Sin  1997, Vol. 33 Issue (9): 971-975    DOI:

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MOTION OF MELT IN CONTINUOUS CASTING MOLD AND SURFACE QUALITY OF INGOT UNDER INTERMITTENT HIGH FREQUENCY MAGNETIC FIELD II. Character of the Motion of Melt

LI Tingju(Dalian University of Technologr; Dalian 116023); SASSA Kensuke; ASAI Shigeo (Nagoya University; Nagoya 464-01; Japan)

LI Tingju(Dalian University of Technologr; Dalian 116023); SASSA Kensuke; ASAI Shigeo (Nagoya University; Nagoya 464-01; Japan). MOTION OF MELT IN CONTINUOUS CASTING MOLD AND SURFACE QUALITY OF INGOT UNDER INTERMITTENT HIGH FREQUENCY MAGNETIC FIELD II. Character of the Motion of Melt. Acta Metall Sin, 1997, 33(9): 971-975.

Abstract References Related Articles Recommended Metrics Download:  PDF(399KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Surface quality of continuously cast metals can be improved by imposing an intermittent high frequency magnetic field from the outside of a mold. The contacting state between a molten gallium, adopted as a simulator of a molten steel, and the mold was visualized by use of an optical fiberscope camera, the relationship between the intermittent contacting distance (representing contacting state), d, and intermittent frequency,f1 was investigated and the theoretical analysis of the melt motion under the intermittent magnetic field was conducted. Moreover, the molten tin was continuously cast under the conditions imposing intermittent and continuous magnetic field. It was found that when f1 is close to the intrinsic frequency of the experimental system, the intermittent contacting distance increases due to resonance motion of the molten metal. Under the condition of imposing intermittent magnetic fieId, the meniscus motion generated by mold oscillation can be effectively suppressed and electric current required to get the same surface quality is equal to 30%-50% of that of imposing continuous magnetic field. Key words:  continuous casting      oscillation mark      surface quality of cast metal      electromagnetic field      Received:  18 September 1997      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1997/V33/I9/971 1濑濑昌文,原田宽,藤健彦,竹内荣一,谷雅弘.材料1992;5:1229 2鹫见郁宏,佐佐健介,浅井滋生.铁钢,1992;78:447 3佐佐健介,李廷举,浅井滋生.铁钢,1993;79:1075 4LI Tingiu,SASSA Kensuke,ASAI Shigeo Metall Trans,1995;26B:353 5李廷举,佐佐健介,浅井滋生.金属学报,1997;33:524 6藤健彦,竹内荣一,梅泽一诚,和岛洁,藤崎敬介,泽田健三材料,1995;8:21 [1] PENG Zhiqiang, LIU Qian, GUO Dongwei, ZENG Zihang, CAO Jianghai, HOU Zibing. Independent Change Law of Mold Heat Transfer in Continuous Casting Based on Big Data Mining[J]. 金属学报, 2023, 59(10): 1389-1400. [2] GUO Dongwei, GUO Kunhui, ZHANG Fuli, ZHANG Fei, CAO Jianghai, HOU Zibing. A New Method for CET Position Determination of Continuous Casting Billet Based on the Variation Characteristics of Secondary Dendrite Arm Spacing[J]. 金属学报, 2022, 58(6): 827-836. [3] LIU Zhongqiu, LI Baokuan, XIAO Lijun, GAN Yong. Modeling Progress of High-Temperature Melt Multiphase Flow in Continuous Casting Mold[J]. 金属学报, 2022, 58(10): 1236-1252. [4] GUO Zhongao, PENG Zhiqiang, LIU Qian, HOU Zibing. Nonuniformity of Carbon Element Distribution of Large Area in High Carbon Steel Continuous Casting Billet[J]. 金属学报, 2021, 57(12): 1595-1606. [5] TANG Haiyan, LIU Jinwen, WANG Kaimin, XIAO Hong, LI Aiwu, ZHANG Jiaquan. Progress and Perspective of Functioned Continuous Casting Tundish Through Heating and Temperature Control[J]. 金属学报, 2021, 57(10): 1229-1245. [6] CAI Laiqiang, WANG Xudong, YAO Man, LIU Yu. Meshless Method for Non-Uniform Heat Transfer/Solidification Behavior of Continuous Casting Round Billet[J]. 金属学报, 2020, 56(8): 1165-1174. [7] REN Zhongming,LEI Zuosheng,LI Chuanjun,XUAN Weidong,ZHONG Yunbo,LI Xi. New Study and Development on Electromagnetic Field Technology in Metallurgical Processes[J]. 金属学报, 2020, 56(4): 583-600. [8] LI Yaqiang, LIU Jianhua, DENG Zhenqiang, QIU Shengtao, ZHANG Pei, ZHENG Guiyun. Peritectic Solidification Characteristics and Mechanism of 15CrMoG Steel[J]. 金属学报, 2020, 56(10): 1335-1342. [9] Chunlei WU,Dewei LI,Xiaowei ZHU,Qiang WANG. Influence of Electromagnetic Swirling Flow in Nozzle on Solidification Structure and Macrosegregation of Continuous Casting Square Billet[J]. 金属学报, 2019, 55(7): 875-884. [10] GUO Junli, WEN Guanghua, FU Jiaojiao, TANG Ping, HOU Zibing, GU Shaopeng. Influence of Cooling Rate on the Contraction of Peritectic Transformation During Solidification of Peritectic Steels[J]. 金属学报, 2019, 55(10): 1311-1318. [11] Ran TAO, Yutao ZHAO, Gang CHEN, Xizhou KAI. Microstructure and Properties of In-Situ ZrB2 np/AA6111 Composites Synthesized Under an Electromagnetic Field[J]. 金属学报, 2019, 55(1): 160-170. [12] Zibing HOU, Rui XU, Yi CHANG, Jianghai CAO, Guanghua WEN, Ping TANG. Time-Series Fluctuation Characteristics of Segregation Carbon Element Distribution Along Casting Direction in High Carbon Continuous Casting Billet[J]. 金属学报, 2018, 54(6): 851-858. [13] Yongyong GONG, Shumin CHENG, Yuyi ZHONG, Yunhu ZHANG, Qijie ZHAI. The Solidification Technology of Pulsed Magneto Oscillation[J]. 金属学报, 2018, 54(5): 757-765. [14] Xinhua LIU, Huadong FU, Xingqun HE, Xintong FU, Yanqing JIANG, Jianxin XIE. Numerical Simulation Analysis of Continuous Casting Cladding Forming for Cu-Al Composites[J]. 金属学报, 2018, 54(3): 470-484. [15] Miaoyong ZHU, Wentao LOU, Weiling WANG. Research Progress of Numerical Simulation in Steelmaking and Continuous Casting Processes[J]. 金属学报, 2018, 54(2): 131-150. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed