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钢液中夹杂物大多以凝聚态形式存在,通过建立凝聚态夹杂物粘附模型,研究了凝聚态夹杂物之间及其与耐材表面之间的粘附机理。结果表明:凝聚态夹杂物间粘附力数量级在10-5N,且粘附力随夹杂物与弯月面接触角、钢液表面张力增大而增大。不同尺寸凝聚态夹杂物粘附时,粘附力随夹杂物间距增大而减小,随两夹杂物半径差的增大而增大;同尺寸凝聚态夹杂物发生粘附时,粘附力比同条件下不同尺寸夹杂物间粘附力显著减小,最大值为不同尺寸夹杂物间粘附力的0.56倍。凝聚态夹杂物与耐材表面间的粘附力随液桥与耐材表面接触角、夹杂物与壁面间距增大而减小,随凝聚态夹杂物动力半径与弯月面弧所在圆的半径之差、钢液表面张力增大而增大。分析结果对研究钢液中夹杂物物理吸附过程具有一定指导作用。
Most of the inclusions in the molten steel exist in the form of condensed state. Through the establishment of the adhesion model of condensed matter inclusions, the adhesion mechanism between the condensed state inclusions and the surface of the refractory is studied. The results show that the adhesion between condensed matter inclusions is on the order of 10-5N, and the adhesion force increases with the contact angle of inclusions and meniscus and the surface tension of molten steel. When different sizes of condensed state inclusions adhere, the adhesion decreases with the increase of the inclusion spacing and increases with the increase of the difference of the two inclusions. When the same size condensate inclusions adhere, the adhesion Compared with different conditions under different conditions, the adhesion between inclusions significantly reduced, the maximum value of 0.56 times the adhesion between different sizes of inclusions. With the contact angle of liquid bridge and refractory surface, the cohesion between condensed matter inclusion and refractory material surface decreases with the increase of the distance between inclusions and wall surface. With the radius of the radius of the dynamic radius of condensate inclusions and the circle of meniscus arc The difference between the liquid steel surface tension increases and increases. The results of the analysis have certain guiding significance for studying the physical adsorption process of inclusions in molten steel.