EFFICIENCY AND INFLUENCING FACTORS OF ELECTROMAGNETIC STEEL-TEEMING TECHNOLOGY
GAO Ao1); WANG Qiang1); LI Dejun1); JIN Baigang1; 2); WANG Kai1); HE Jicheng1)
1) Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education); Northeastern University; Shenyang 110819
2) Bayuquan Iron and Steel Subsidiary; Angang Steel Company Limited; Yingkou 115007
Cite this article:
GAO Ao WANG Qiang LI Dejun JIN Baigang WANG Kai HE Jicheng. EFFICIENCY AND INFLUENCING FACTORS OF ELECTROMAGNETIC STEEL-TEEMING TECHNOLOGY. Acta Metall Sin, 2010, 46(5): 634-640.
A new method (electromagnetic steel-teeming method) using electromagnetic induction heating in slide-gate was proposed to overcome the disadvantage of the pollution of the traditional nozzle sand on the molten steel. The basic idea of this new process is to melt part of or the whole of the new ladle well-packing materials (i.e. Fe-C alloy with similar composition of the molten steel), which became the substitute of the traditional nozzle sand, and achieved smoothly molten steel-teeming. Experimental and numerical simulation methods were employed to investigate the surface temperature of the upper nozzle where the Fe-C alloy was used to replace the traditional nozzle sand. The calculated temperature is consistent with the experimental results. In addition, the effects of the induction parameters such as current intensity, frequency and diameter of the coil on teeming time were investigated. The results showed that the teeming time was decreased with the increases of current intensity and frequency, but with the decrease of coil diameter. The order of the factors affecting the teeming time is current intensity, frequency and diameter of the coil. The best parameters were found under the conditions of this research. The experimental results indicated that automatically teeming of the ladle would be achieved by using the electromagnetic steel-teeming technology.
Supported by the Science and Technology Program of Liaoning Province (No.2008221015), Liaoning Bai Qian Wan Talents program, and the {\footnotesize\it 111} Project (No.B07015)
[1] Wunnenberg K. Rev Metall, 2005; 102: 687
[2] International Iron and Steel Institute. IISI Study on Clean Steel. Beijing: Metallurgial Industry Press, 2006: 4
(国际钢铁协会. 洁净钢-洁净钢生产工艺技术. 北京: 冶金工业出版社, 2006: 4)
[3] Zhang J M, Li S X, Yang Z G, Li G Y, Hui W J, Weng Y Q. Int J Fatigue, 2007; 29: 765
[4] Suito H, Inoue R. ISIJ Int, 1996; 36: 528
[5] Tomita Y. Mater Sci Technol, 1995; 11: 508
[6] Brooksbank D, Andrews K W. J Iron Steel Inst, 1972; 210: 246
[7] Pleschiutschnigg F P, Parschat L, Rahmfeld W, Schrewe H F. Iron Steel Eng, 1987; 64(1): 51
[8] Tanaka H, Nishihara R, Kitagawa I, Tsujino R. ISIJ Int, 1993; 33: 1238
[9] Tanaka H, Nishihara R, Miura R, Tsujino R, Kimura T, Nishi T, Imoto T. ISIJ Int, 1994; 34: 868
[10] Gao A,Wang Q,Wang C J, Liu T, Zhang C, He J C. Acta Phys Sin, 2008; 57: 767
(高翱, 王强, 王春江, 刘铁, 张 超, 赫冀成. 物理学报, 2008; 57: 767)
[11] Wang Q, Jin B G, Gao A, Yang J F, He J C. Acta Metall Sin, 2008; 44: 883
(王 强, 金百刚, 高 翱, 杨景烽, 赫冀成. 金属学报, 2008; 44: 883)
[12] Zhang C, Wang Q, Gao A, Liu T, Lou C S, He J C. Acta Metall Sin, 2008; 44: 713
(张 超, 王强, 高 翱, 刘 铁, 娄长胜, 赫冀成. 金属学报, 2008; 44: 713)
[13] Wang Q, Liu T, Gao A, Zhang C, Wang C J, He J C. Scr Mater, 2007; 56: 1087
[14] Liu T , Wang Q, Gao A, Zhang C, Wang C J, He J C. Scr Mater, 2007; 57: 992
[15] He J C, Marukawa K, Wang Q. China Pat, ZL1810417, 2006
({z , z|w, x . yy , ZL1810417, 2006)
[16] Gao A, Wang Q, He J C. J Northeast Univ (Nat Sci), 2010; 31: 515
(高翱, 王强, 赫冀成. 东北大学学报 (自然科学版), 2010; 31: 515)
[17] Stcker H, translated by Wu X Z, Li Z X, Chen S P. Handbook of Physics. Beijing: Peking University Press, 2004: 182
(Stcker H, 吴锡真, 李祝霞, 陈师平译. 物理手册. 北京: 北京大学出版社, 2004: 182)
[18] Yang S M, Tao W Q. Heat Transfer. Beijing: Higher Education Press, 1998: 5
(杨世铭, 陶文铨. 传热学. 北京: 高等教育出版社, 1998: 5)
[19] Pan Y H, Grip C E, Bjorkman B. Scand J Metall, 2003; 32: 71
[20] Sadeghipour K, Dopkin J A, Li K. Comput Ind, 1996; 28: 195
[21] Jang J Y, Chiu Y W. Appl Therm Eng, 2007; 27: 1883
[22] Li E Q, Yin J X, ZhangWC. Casting Induction Furnace. Beijing: Machinery Industry Press, 1997: 7
(李恩琪, 殷经星, 张武城. 铸造用感应电炉. 北京: 机械工业出版社, 1997: 7)
