【摘要】 对80t单嘴真空精炼炉的冶金功能进行了生产实验分析,结果表明,单嘴精炼炉具有脱氢、脱氮、脱碳、脱氧、脱硫、化学升温、去除钢中夹杂物和合金成分调整等冶金功能。利用80t单嘴精炼炉精炼钢水,实验合结钢中氢含量可达（0.9～1.2）×10^-6、氧含量（9～12）×10^-6,超低碳钢中碳含量为（10～20）×10^-6、氮含量（29～37）×10^-6、钢水中硫含量为（10～30）×10^-6;单嘴精炼炉具有较好的化学升温效果、去除夹杂物效果同RH精炼炉相当;采用单嘴精炼炉进行20炉超低碳钢合金成分调整结果表明,合金收得率高,硅、锰、铝的收得率分别为93%～96%、93%～95%、64%～67%。更多还原

【Abstract】 A primary test analysis on metallurgical functions of an 80 t single snorkel vacuum refining furnace has been carried out.Results show that the single snorkel vacuum refining furnace has the metallurgical functions including dehydrogenation, denitriding,decarburizing,deoxidation,desulphurization,liquid heating by chemical reaction,removing inclusions in liquid and adjusting alloy component.By using the 80 t single snorkel vacuum refining furnace to refine liquid, the hydrogen and oxygen content in alloy constructional steels are respectively reduced to（0.9～1.2）×10^-6 and （9～12）×10^-6,in ultra-low carbon steels,the carbon content is（10～20）×10^-6,the nitrogen content is（29～37）×10^-6 and the sulphur content is（10～30）×10^-6;the single snorkel refining furnace has better heating function by chemical exothermic reaction and its inclusions removing effect is equal to that of RH refining unit;the results of 20 heats ultralow carbon steel alloy-compound-adjusting in single snorkel refining furnace show that the yield of alloy elements is high, the yields of silicon,manganese and aluminum are respectively 93%～96%,93%～95%and 64%～67%.更多还原