摘要
通过物理模拟对结晶器保护渣的卷渣情况进行了分析研究,得出:低粘度保护渣发生卷渣的临界表面流速为87.7 mm/s,保护渣浸入结晶器液面的临界深度为22 mm;高粘度保护渣发生卷渣的临界表面流速为101.2 mm/s,保护渣的临界浸入深度为25 mm。当表面流速大于对应的临界值,从而使得保护渣的浸入深度超过临界深度时,才可能发生卷渣现象;结晶器卷渣一般发生在距结晶器窄面1/3的位置处。
Wrap slag situation of crystallizer＇s slag powder was analyzed through physical simulation.The results show that the critical surface speed of low viscosity slag powder at which wrap slag occurs is 87.7 mm/s,the critical depth of slag powder below the liquid level of crystallizer is 22 mm.The critical surface speed of high viscosity slag powder at which wrap slag occurs is 101.2 mm/s,the critical depth of slag powder below the liquid level of crystallizer is 25 mm.When the surface speed is greater than the corresponding critical value,and the immersion depth of slag powder exceeds the critical depth,wrap slag phenomenon may occur.The wrap slag of crystallizer generally occur in the position from the crystallizer narrow side a third.
出处
《铸造技术》
CAS
北大核心
2016年第10期2173-2176,2179,共5页
Foundry Technology
关键词
保护渣
表面流速
粘度
slag powder
surface speed
viscosity
