摘要
对断面180 mm×755 mm的板坯进行1∶1物理模拟研究,以及建立fluent数学模型的方法,对结晶器钢液的表面流速、流场等进行分析研究。结果表明:相同拉速下,当倾角为15°、20°、25°时,倾角每增加5°,平均表面流速下降40%左右;相同水口倾角下,当拉速为0.8、0.9、1.0、1.1 m/min时,拉速每增加0.1 m/min,平均表面流速上升30%左右;相同拉速下,当水口浸入深度为100、120、135、150 mm时,浸入深度增加10 mm,平均表面流速上升40%左右。
A 1:1 physical model and mathematical model was established on the cross-section slab of 180 mm×755 mm to analyze and research surface flow rate and flow field of the steel in mould. The experimental results show that, at the same speed, when the dip is 15°, 20°, 25°, the average surface flow rate is decreased by 40% at dip angleof each increasing 5°. At the same dip, when the casting speed is 0.8, 0.9, 1.0 and 1.1 m/min, for each increase of 0.1 m/rain, the mean surface flow rate is increased by about 30%. At the same casting speed, when the immersion depth of the nozzle is 100, 120, 135, 150 mm, for each increase of 10 mm, and the mean surface velocity is increased by about 40%.
出处
《铸造技术》
北大核心
2017年第8期1944-1948,共5页
Foundry Technology
关键词
表面流速
流场
拉速
倾角
浸入深度
surface speed
flow field
casting speed
dip angle
depth of immersion