| R9m方坯连铸二次冷却工艺的优化 |
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| 引用本文： | 刘欣,张洪来,李洪勇. R9m方坯连铸二次冷却工艺的优化[J]. 山东冶金, 2005, 27(3): 14-15 |
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| 作者姓名： | 刘欣 张洪来 李洪勇 |
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| 作者单位： | 山东石横特钢集团有限公司,山东,泰安,271612;山东石横特钢集团有限公司,山东,泰安,271612;山东石横特钢集团有限公司,山东,泰安,271612 |
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| 摘 要： | 为提高优钢铸坯质量，石横特钢厂对R9m方坯连铸二次冷却工艺进行了优化。依据拉速一定时，二冷配水冷却水量沿铸坯方向从上到下逐渐减少的配水原则，制定了不同钢种、不同拉速的配水丁艺模型。应用表明，铸坯低倍组织明显改善，杜绝了中间裂纹、鼓肚等现象，减少了铸坯脱方、疏松、缩孔等缺陷。
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| 关 键 词： | 方坯连铸 二次冷却 工艺优化 配水模型 |
| 文章编号： | 1004-4620(2005)03-0014-02 |
| 收稿时间： | 2004-11-19 |
| 修稿时间： | 2004-11-19 |
Process Optimization for Secondary Cooling of R9m Billet CC |
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| LIU Xin,ZHANG Hong-lai,LI Hong-yong. Process Optimization for Secondary Cooling of R9m Billet CC[J]. Shandong Metallurgy, 2005, 27(3): 14-15 |
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| Authors: | LIU Xin ZHANG Hong-lai LI Hong-yong |
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| Abstract: | tn order to improve the quality of superior billet, the secondary cooling process of R9m Billet CC is optimized in Shiheng Special Steel Plant. Basing on the distributing principle that the water volume of secondary cooling along the caster direction from top to bottom gradually reduce when casting speed is certain, the water volume and water distribution model for the different kinds of steel and different casting speed are constituted. Applications show that macroscopic structure of billet was improved, middle crack and bulge arc ceased, the off-square, shrinkage porosity, shrink hole and so on of billet arc reduced. |
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| Keywords: | billet CC secondary cooling process optimization water distribution model |
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