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文章总结了作者1975年以来研制和使用钢液固体电解质浓差定氧电池的经验。通过对比试验,指出了提高其测成率和信号稳定性的一些关键。对测定结果的可靠性亦用多种方法进行过鉴定。用浓差定氧对电炉冶炼工艺进行研究得知:出钢终脱氧前熔池中的氧活度与钢材的氧化物夹杂评级密切有关,降低终脱氧前的钢中氧活度对提高钢材的洁净度有利。当采用铝预脱氧工艺时,电炉还原期可以大大缩短。用浓差电池定氧还研究了氧气底吹转炉冶炼过程中熔池含氧量的变化规律。判明了在吹炼终点使用锰铁预脱氧无明显效果。而鼓入氮气可以使钢中含氧量降低约50％。浓差定氧还可用于判断和控制钢锭上涨及皮下气泡的发生。
The article summarizes the experience of the author in developing and using the liquid steel solid electrolyte concentration constant oxygen cell since 1975. Through the comparison test, some key points to improve the measurement accuracy and signal stability are pointed out. The reliability of the determination results have also been identified using a variety of methods. Concentration oxygen concentration of the electric furnace smelting process was studied that: the final tapping before deoxidation molten pool oxygen activity and steel oxide inclusions are closely related to the reduction of final deoxidation before the steel oxygen activity to improve the steel Cleanliness is favorable. When using aluminum pre-deoxidation process, the furnace reduction period can be greatly reduced. The concentration of oxygen in the concentrated battery was also studied. The variation of oxygen content in the molten pool during the oxygen bottom blowing converter smelting process was studied. It was determined that there was no obvious effect of using ferromanganese pre-deoxidation at the end of blowing. Boosting nitrogen can reduce oxygen in the steel by about 50%. Concentration differential oxygen can also be used to determine and control ingot inflation and subcutaneous bubbles.