【作者】 余万华； 杜雁冰； 卿俊峰； 王琨； 王绍斌； 刘勇；

【Author】 YU Wan-hua DU Yan-bin QING Jun-feng WANG Kun WANG Shao-bin LIU Yong(1.School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.High Speed Rod Production Mill,Chongqing Iron & Steel Co Lid,Chongqing 400081,China)

【机构】 北京科技大学材料科学与工程学院； 重庆钢铁股份有限公司高线厂；

【摘要】 研究开发成功了高速线材斯太尔摩冷却线风冷段温度及性能预报综合新模型,对该模型的相变模拟的基本原理进行介绍。该模型在重钢高线厂得到应用.现场实测的温度数据证明了模型的可靠性。预测温度与实测沮度的偏差不超过20℃,模型预测了φ8mm 70钢线材在三台风机全开条件下相变在第二台风机附近发生,相变持续了约6s。基于开发的新模型,分析表明不同工艺参数如线材的直径和辊道速度对风冷段线材的冷却速度和相变区同有直接的影响。更多还原

【Abstract】 A comprehensive new temperature and quality prediction model for the Stelmor llne was developed sucessfully.This paper is focus on the key part of the temperature and phase transformation coupled model for the fan cooling stage.This model has been applied in the Chongqin high speed rod mill,the real measurement proves that the predicted rod Surface temperature with this model is in good agreement with no more than 20℃ deviation,the model predicts that phase transformation occurs st the second fan stage which lasts for about 6 seconds for φ8mm rod when three fan machines are full openning.With this model,it is found that the rod diameter and roller transport speed have direct effect on the rod’s cooling rate and range of phase transformation.更多还原