Traditional electroslag remelting (ESR) technology using the slag with a high CaF₂ content is faced with a high specific power consumption and fluoride pollution. Under double pressure, it is therefore very important to have a good understanding of the ESR process. The energy utilization, η, of the ESR depends on both the electrical, η_E, and thermal efficiency, η_H. Tailoring slag composition is one of the useful techniques to enhance energy utilization, because slag is very important to generate Joule heat for melting electrodes, control horizontal heat transfer, and maintain uniform distribution of alloy elements from the bottom to top of the remelted ingots in the ESR process. Therefore, herein, the aim is to review the effects of slag composition, especially CaF₂ content, and temperature on the electrical conductivity and thermal conductivity, which further influence the heat balance during the ESR process. The volatilization mechanism of the liquid fluoride‐containing slag at an elevated temperature is introduced from the perspective of thermodynamics and kinetics. Meanwhile, some of the recent advances and technology improvements in energy utilization and productivity enhancements for the ESR process are summarized, which provide benefits to achieve sustainable development for the ESR process.

中文翻译：

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改善电渣重熔过程能源利用和减少氟污染的方法学进展：综述

使用具有高CaF ₂含量的炉渣的传统电炉渣重熔（ESR）技术面临着较高的单位能耗和氟化物污染。因此，在双重压力下，充分了解ESR过程非常重要。能量利用，η的ESR的，同时取决于电，η _È，和热效率，η _ħ。调整炉渣成分是提高能源利用率的有用技术之一，因为炉渣对于产生熔化电极的焦耳热，控制水平传热以及保持合金元素在钢锭中从底部到顶部的均匀分布非常重要。 ESR流程。因此，本文的目的是回顾炉渣成分，特别是CaF ₂的影响。含量以及温度对电导率和热导率的影响，这进一步影响了ESR过程中的热平衡。从热力学和动力学的角度介绍了液态氟化物炉渣在高温下的挥发机理。同时，总结了ESR流程在能源利用和生产率提高方面的一些最新进展和技术进步，这为实现ESR流程的可持续发展提供了好处。