静态电磁软接触结晶器界面传热特性研究
Investigations of Heat-transfer of Electromagnetic Soft-contact Mold
设计并制作了内径尺寸为100mm×100mm的非均匀切缝方坯电磁软接触连铸结晶器，并进行了低熔点合金的静态凝固传热实验，揭示了不同电源功率下结晶器内部磁场分布、弯月面变形、凝固坯壳形貌、三相点位置、结晶器壁温度与热流、熔池温度和结晶器冷却水温度的变化规律。实验结果表明：随着电源功率的增大，低熔点合金自由液面的波动加剧，熔池温度升高，初始凝固点下移，形成的凝固坯壳逐渐变薄，直至发生重熔，揭示了高频磁场对结晶器内合金液加热，造成三相点下移的变化规律；同时合金液和结晶器壁中产生的焦耳热增大，并在切缝处和分瓣体会出现不均匀分布，造成坯壳厚度分布不均。
billet soft-contact Electromagnetic Continuous Casting(EMCC) mold with the size of 100 mm×100 mm with non-uniformity segment was developed. By using low melting point alloy, experiments had been done. The results show that compared with symmetry slits EMCC mold. The free surface of the low melting point alloy will fluctuate heavily with the increase of the input power; the temperature of liquid metel will increases, the initial solidification point moves downwards, and the solidification shell become thinner. The joule heat in the mold will increase at the same time. The temperature and the heat flux of the EMCC mold will increase. The resulets can give great support to the EMCC industical experiment.
张林涛、王恩刚、赫冀成、邓安元
冶金技术电工技术概论
连铸结晶器传热特性静态
continuous castingmoldcharatcar of heat transferstatic state
张林涛,王恩刚,赫冀成,邓安元.静态电磁软接触结晶器界面传热特性研究[EB/OL].(2011-02-18)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/201102-352.点此复制
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