| 喷嘴与钢轨间距离对喷风冷却效果的影响 |
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| 引用本文： | 周剑华,任安超,吉玉,康皓. 喷嘴与钢轨间距离对喷风冷却效果的影响[J]. 武钢技术, 2012, 50(5): 14-16 |
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| 作者姓名： | 周剑华 任安超 吉玉 康皓 |
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| 作者单位： | 1. 武钢研究院,湖北武汉,430080
2. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110004 |
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| 摘 要： | 通过采用ANSYS FLOTRAN流体软件模拟钢轨喷风冷却热处理过程中流场的速度分布,以及钢轨热处理实验,分析了喷嘴与钢轨之间的距离对钢轨热处理后硬度的影响。喷嘴与钢轨之间的距离在15～20 mm范围时,钢轨热处理后硬度分布最好,热处理效果最佳,为钢轨在线热处理生产线的建设提供了理论基础。该流场模型模拟结果与试验结果完全一致,为钢轨喷风冷却热处理工艺的优化提供了一定的指导作用。
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| 关 键 词： | 钢轨 喷风冷却 ANSYS FLOTRAN 流场 |
The influences of distance between nozzles and rail on the effect of cooling with compressed air |
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| ZHOU Jian-hua,REN An-chao,JI Yu,KANG Hao. The influences of distance between nozzles and rail on the effect of cooling with compressed air[J]. Wisco Technology, 2012, 50(5): 14-16 |
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| Authors: | ZHOU Jian-hua REN An-chao JI Yu KANG Hao |
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| Affiliation: | 1.R & D Center of WISCO,Wuhan 430080,China;2.The state key lab of Rolling & Automation Northeastern University,Shenyang 110004,China) |
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| Abstract: | The influence of distance between nozzles and rail on the rail hardness after heat treatment is analyzed by simulating the velocity distribution of the flow field in the process of cooling with compressed air and heat treatment using the fluid software ANSYS FLOTRAN as well as by steel rail heat treatment experiments. When the distance between the nozzle and rails is in the range of 15 to 20 mm, the rail hardness distribution is best after heat treatment and thus the results of heat treatment is the best. It provides the theoretical basis for construc- tion of the rail on-line heat treatment line. The simulation results agree with the experimental results perfectly. It provides some guidance for the technology optimization of the rail heat treatment with compressed air as well. |
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| Keywords: | rail cooling with compressed air ANSYS FLOTRAN flow field |
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