| R9 m连铸机小方坯结晶器流场和温度场的数值模拟 |
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| 引用本文： | 徐永斌,马春武,幸伟,徐海伦.R9 m连铸机小方坯结晶器流场和温度场的数值模拟[J].山东冶金,2012(3):25-28. |
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| 作者姓名： | 徐永斌 马春武 幸伟 徐海伦 |
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| 作者单位： | 中冶南方工程技术有限公司 技术研究院,湖北 武汉 430223 |
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| 摘 要： | 采用ANSYS CFX 12.1软件,对结晶器浸入式水口的尺寸和浸入深度进行建模,研究了相应的流场和温度场分布情况,分析了不同条件下的结晶器内流场、液面波动、温度分布及坯壳厚度.结果表明,在较小尺寸和浸入深度的水口作用下,钢液对外弧壁面的冲刷作用明显,易降低结晶器寿命.随着水口内径和浸入深度的增大,钢液面扰动减弱,易于防止卷渣.试验条件下,采用30 mm内径水口、100 mm浸入深度较为合理.
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| 关 键 词： | 小方坯结晶器 浸入式水口 流场 温度场 数值模拟 |
Study on Rolling Process of Promoting 410S Stainless Steel Recrystallization |
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| Affiliation: | CHEN Pei-dun, WANG Hong-xia, LI Zhi-ping, MA Zheng-wei, ZHANG Zheng-fa ( Shandong Taishan Iron and Steel Group Co., Ltd., Laiwu 271100, China) |
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| Abstract: | The metallographic structure, tension test properties and fractngraphy of 410S hot rolled strips produced in laboratory and of industrial production were analyzed and cnmpared. The results showed that through changing the rolling process, that is, decreasing the rolling temperature of last passes and increasing the reduction in pass for promoting the strip recrystallization, the recrystallized structure increased the properties of the strip markedly and softening the strip. The structure of the strip produced by improved process was most recrystallized ferrite and part granule carbide separated along the grain boundary. |
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| Keywords: | 410S stainless steel hot-wiling recrystallization finishing temperature reduction in pass |
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