CAJ | 학술논문

从理论上分析了钢液增氮的热力学、动力学影响因素，进行了BOF+RH双联吹氮冶炼钒氮钢试验。结果表明，转炉底吹、RH喷吹均能有效增加钢液氮含量。 RH真空度两段式控制既能满足控氢要求又能实现钢液搬出时较高的氮含量。 BOF+RH双联吹氮气工艺可以不加含氮合金冶炼钒氮微合金钢。
종이론상분석료강액증담적열역학、동역학영향인소，진행료BOF+RH쌍련취담야련범담강시험。결과표명，전로저취、RH분취균능유효증가강액담함량。 RH진공도량단식공제기능만족공경요구우능실현강액반출시교고적담함량。 BOF+RH쌍련취담기공예가이불가함담합금야련범담미합금강。
The thermodynamic and dynamic influence factors for increasing the content of ni-trogen in molten steel are theoretically analyzed and the experiment for the smelting V-N contain-ing steel by blowing nitrogen into both BOF and RH is carried out. The results show that the con-tent of nitrogen in molten steel can be effectively increased by converter bottom blowing and RH blowing. With its characteristics of the RH blowing the two-stage control technology for RH vacu-um degree can meet the requirement for controlling the content of hydrogen and also the molten steel with relative high content of nitrogen can be available when tapping. V-N micro-alloyed steel can be smelted without adding the nitrogen-containing alloy by using BOF and RH duplex nitro-gen-blowing process.