摘要
横磁感应加热较其他传统感应加热在对薄带钢以及居里点以上带钢加热时具有更高的效率。但横磁感应加热装置在加热带钢时,由于"边部效应"导致带钢温度分布不均。针对此问题,提出了在带钢两侧增加磁屏蔽板的方式,降低带钢边部涡流密度,使其表面温度分布更均匀。以800 mm宽的45钢带材为加热对象,采用COMSOL仿真软件分别对横磁感应加热装置在"有/无"磁屏蔽板的两种工况下带钢表面的涡流场和温度场进行了耦合计算,并将带钢在感应加热装置出口处沿宽度方向的温度值进行对比,分析了磁屏蔽板对加热过程的影响,得出磁屏蔽板的最佳安装位置。
Compared with other traditional induction heating methods,transverse flux induction heating(TFIH)has higher efficiency during the heating of thin strips and strips above the Curie point.However,when a TFIH device is used for the heating of strip steel,the temperature distribution of strip is non-uniform due to the‘edge effect’.Aiming to solve the problem,the addition of electromagnetic screens on both sides of strip steel was proposed in this paper to reduce the eddy density at the edge of strip.45 strip steel with width of 800 mm was used as heating objective in this study.The coupling calculation of eddy field and thermal field on strip surface for TFIH device was conducted using COMSOL simulation software under two conditions,i.e.,with and without electromagnetic screen.The temperature of strip steel at induction heating device outlet was compared along the width direction.The influence of electromagnetic screen on heating process was analyzed and the optimal installation position of electromagnetic screen was obtained.
作者
赵鼎诚
马淑梅
ZHAO Ding-cheng;MA Shu-mei(School of Mechanical and Power Engineering Tongji University,Shanghai 200092,China)
出处
《物理测试》
CAS
2020年第1期1-6,共6页
Physics Examination and Testing
关键词
带钢
横磁加热
磁屏蔽板
边部效应
温度均匀性
strip steel
transverse flux induction heating(TFIH)
electromagnetic screen
edge effect
temperature uniformity
作者简介
赵鼎诚(1989—),男,大学本科,工程师,E-mail:chickented@163.com
