摘要
系统地研究了三维圆坯连铸结晶器内磁场分布,分别考察了结晶器切缝长度、切缝宽度、切缝数和结晶器壁厚等结构参数,钢液液面高度、电流强度等操作参数对结晶器内磁场分布的影响.切缝长度从130mm增加到220 mm,磁感应强度最大值从0.056 T增加到0.071 T;切缝宽度从0.3 mm增加到1.1 mm,磁感应强度最大值从0.058 T增加到0.089 T;切缝数从8增加到32,磁感应强度增加明显,32后不再明显;结晶器壁厚从10 mm增加到19 mm,磁感应强度最大值降低近50%;钢液液面应该位于线圈中心位置从而获得最大磁感应强度;磁感应强度最大值随电流强度线性增加.
Continuously from part Ⅰ, three dimensional distributions of magnetic field in softcontacting electromagnetic continuous casting （EMCC） mold are systematically investigated numerically. Influences of structural parameters such as slit length/width, number of slit and wall thickness of mold, and the operating parameters such as free surface heights of liquid steel, electrical current densities, on magnetic flux density in mold were investigated separately. The max magnetic induction increases from 0. 056T to 0. 071T when slit length goes up to 220 mm from 130 ram; and increases from 0. 058T to 0. 089T when slit width goes up to 1.1 mm from 0.3 ram. The magnetic induction increases remarkably when the number of slit increases from 8 to 32, and the increase trend becomes smooth after 32. The max magnetic induction decreases about 50 % when the mold wall thickness increases from 10 mm to 19 mm. The free surface of liquid steel should locate at the center position of inductor coil to obtain the largest magnetic induction. The max magnetic induction increases linearly against electrical density.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第10期1397-1400,1405,共5页
Journal of Northeastern University(Natural Science)
基金
国家高技术研究发展计划项目(2001AA337040)
关键词
软接触
电磁连铸
结晶器
电磁场
磁感应强度
数值模拟
soft-contacting
electromagnetic continuous casting
mold
electromagnetic field
magnetic flux density
numerical simulation
