14.带钢厚度对纵向磁通感应加热影响研究*

 黄艳丽1，2，王军2，麻永林2，邢淑清2，蔡淼2

( 1．包头钢铁职业技术学院，内蒙古包头014010; 2．内蒙古科技大学材料与冶金学院内蒙古包头014010)

关键词: 感应加热; 纵向磁通; 数值模拟; 带钢厚度

中图分类号: TG162． 86 文献标识码: A

摘要: 采用电磁-热耦合数值分析方法在物理参数相同的条件下，分别对2，4，6 mm 带钢进行纵向磁通感应加热数值模拟．计算结果显示: 带钢厚度越大，加热的最终温度越高，带钢与边部温差越大．但是在加热初始阶段，厚度较薄的带钢升温较快．而通过与透入深度的对比，不同深度下采用变频率加热，即可实现变频加热．

The Effect of strip thickness on longitudinal magnetic flux induction heating

HUANG Yang-li1，2，WANG Jun2，MA Yong-lin2，XING Shu-qing2，CAI Miao2

( 1． Baotou Iron and Steel Vocational Technical College，Baotou 014010 China． 2． Materials and Metallurgy School，Inner Mongolia University of Science and Technology ，Baotou 014010，China)

Key words: induction heating; longitudinal magnetic flux; numerical simulation; Strip thickness

Abstract: Using the numerical analysis and electromagnetic-thermal coupling method under the condition of same physical parameters，the numerical simulation of the strip steel of 2 mm ， 4 mm ， 6 mm in thickness was carried out for magnetic flux induction heating in longitudinal direction ．Calculation results show that the bigger the thickness of the strip steel is，the higher the final heating temperature is，and the greater is the difference in temperature between strip steel and edge．But in the initial phase of the heating process，thinner strip steel was heated up faster． And with the depth of penetration compared，the frequency heating will be realized through heating by changing the frequency under different depth．