CAJ | 학술논문

利用真空感应炉熔炼含氮奥氏体气阀钢，多次熔炼试验结果表明，采用两次加碳脱氧可使钢液深度脱氧，氧含量可达（10～15）×10-6；炉料化清后往真空室通入60%N2+40%Ar可有效抑制N和Mn从钢液中逸出，准确控制N和Mn的含量；用含氮金属锰作N的加入剂，在还原期末钢液合金化完毕后加入，可以获得满意的Mn含量。
이용진공감응로용련함담오씨체기벌강，다차용련시험결과표명，채용량차가탄탈양가사강액심도탈양，양함량가체（10～15）×10-6；로료화청후왕진공실통입60%N2+40%Ar가유효억제N화Mn종강액중일출，준학공제N화Mn적함량；용함담금속맹작N적가입제，재환원기말강액합금화완필후가입，가이획득만의적Mn함량。
A technology of smelting nitrogen alloyed austenitic steel used for valve by vacuum induction furnace was investigated. The results of repeatedly smelting experiment show that twice carbon-adding during melting can result in the deoxidation of molten steel with oxygen content of (10-15) × 10-6. Supplying of 60%N2 and 40%Ar into vacuum chamber will suppress the escape of nitrogen and manganese from the molten steel efficiently and easy to control the content of nitrogen and manganese precisely. Being added to the molten steel at the end of reducing period after the finish of alloying, the element manganese with N containing will lead to an appropriate content of manganese in the austenitic steel.