CAJ | 학술논문

为了计算非金属夹杂物在中间包和铸锭模等冶金容器内的上浮速度，根据夹杂物的阻力系数与雷诺数的关系，可将极限上浮速度分为斯托克斯区、过渡区和牛顿定律区等。通过分别计算在不同夹杂物密度、钢水密度、钢水粘度和夹杂物形状情况下夹杂物极限上浮速度与夹杂物当量直径的关系，为计算夹杂物的上浮距离和判断夹杂物能否去除提供理论依据。
위료계산비금속협잡물재중간포화주정모등야금용기내적상부속도，근거협잡물적조력계수여뢰낙수적관계，가장겁한상부속도분위사탁극사구、과도구화우돈정률구등。통과분별계산재불동협잡물밀도、강수밀도、강수점도화협잡물형상정황하협잡물겁한상부속도여협잡물당량직경적관계，위계산협잡물적상부거리화판단협잡물능부거제제공이론의거。
For calculation of rising speed of non-metallic inclusion in metallurgic container such as tundish and casting mould, the rising limit speed is divided into Stokes zone, transition zone and Newton's law zone according to the relationship of resistance coefficient and Reynolds number. By respective calculation of relationship of rising speed and equivalent diameter under various conditions of different inclusion density, molten steel density, and viscosity and inclusion profile, the paper proposes theoretical basis for calculation of rising distance and judgment of inclusion removal.