| 304不锈钢板坯连铸结晶器水口结构优化的数值模拟 |
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| 引用本文： | 邓南阳,金友林. 304不锈钢板坯连铸结晶器水口结构优化的数值模拟[J]. 特殊钢, 2010, 31(3): 10-13 |
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| 作者姓名： | 邓南阳 金友林 |
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| 作者单位： | 1安徽工业大学冶金与资源学院,马鞍山243002； 2马鞍山钢铁股份有限公司技术中心，马鞍山243000 |
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| 摘 要： | 通过数值模拟研究了304不锈钢200mm×1 550 mm板坯结晶器内用原水口时的钢液流场及钢-渣界面的特征。结果表明,原水口的结晶器流场的上回流过强,钢-渣界面的不稳定,结晶器窄边渣液层薄,易发生卷渣和钢液裸露;最优化水口结构为将原水口V型底部改成凹型、增加水口出口形状的锥度、向上倾角10°。
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| 关 键 词： | 304不锈钢 板坯 水口优化 连铸结晶器 数值模拟 |
| 收稿时间： | 2009-12-09 |
Numerical Simulation on Optimization of Nozzle Structure for 304 Stainless Steel Slab Concasting Mold |
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| Deng Nanyang,Jin Youlin. Numerical Simulation on Optimization of Nozzle Structure for 304 Stainless Steel Slab Concasting Mold[J]. Special Steel, 2010, 31(3): 10-13 |
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| Authors: | Deng Nanyang Jin Youlin |
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| Affiliation: | 1 School of Metallurgy and Resource, Anhui University of Technology, Maanshan 243002；2 Maanshan Iron and Steel Group Co Ltd, Maanshan 243000 |
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| Abstract: | The characteristics of liquid steel-slag interfacial profile and liquid field in mold with original nozzle for 304 stainless steel 200 mm × 1 550 mm slab have been studied by numerical simulation. Results show that in mold with original nozzle the upper returning flow is strong, led to liquid steel-slag interfacial profile unstable, thin slag layer at narrow side of mold, anil easier occurring slag entrapment and liquid exposed ； the optimum nozzle structure is to modify the V-type bottom of original nozzle to concave type, increase the taper of nozzle outlet with upward angle 10°. |
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| Keywords: | 304 Stainless Steel Slab Nozzle Optimization Casting Mold Numerical Simulation |
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