在真空脱气器中，氮的解吸和脱碳反应速率的控制取决于钢水中参加化学反应（N＋N＝N。，LC＋0＝CO）的氮、碳和氧的质量传递过程。认为熔池表面、吹入的灯气泡表面和熔池内部形成WJCO气泡表面是反应的场所。该原理已被计算结果与试验结果的吻合所证实。用此原理分析大生产中的 In a vacuum degasser, the control of the rate of nitrogen desorption and decarburization depends on the mass transfer of the nitrogen, carbon and oxygen participating in the chemical reaction (N + N = N., LC + 0 = CO) in the molten steel. It is considered that the surface of the molten pool, the surface of the bubble of the blown-in lamp and the surface of the molten pool formed by the WJCO bubble are the reaction sites. The principle has been confirmed by the calculated results and experimental results. Use this principle to analyze the big production