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Q215钢棒材热轧后湍流冷却过程温度场数值模拟 总被引:1,自引:0,他引:1
利用湍流管式冷却系统可以提高棒材热轧后冷却效率,使棒材表面形成回火马氏体,提高其力学性能。运用有限元分析软件MSC.Marc分析了Φ25 mm Q215钢棒材热轧后湍流冷却过程的温度场。结果表明,棒材离开湍流式冷却系统1 s时,棒材表面由950.0℃(终轧温度)降至768.0℃,芯部温度降至861.2℃;棒材离开湍流式冷却系统后,空冷3 s时表面温度升至792.6℃。生产应用结果表明,棒材进行普通冷却后的强度极限为310 MPa,用湍流式3段冷却后棒材的强度极限达410 MPa。 相似文献
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Two-Dimensional Transient Temperature Field of Finish Rolling Section in Hot Tandem Rolling 总被引:12,自引:0,他引:12
YANGLi-po PENGYan LIUHong-min 《钢铁研究学报(英文版)》2004,11(4):29-33
Comprehensively considering the factors such as descaling cooling, air cooling, watercooling, frictional heat and deformation heat in gap of every stand, heat conduction betweenwork roll and strip etc, a model of two-dimensional transient temperature field of finish rollingsection in hot tandem rolling was built with finite difference method to calculate the temperaturefields of strip and work roll. So two-dimensional accurate analysis and calculation of strip tem-perature were realized, and the theoretical basis for predicting and controlling strip temperaturewas provided. The simulated results show that the model is practical and reliable. 相似文献
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