| 高强度管线钢精炼渣系的开发与实践 |
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| 引用本文： | 焦兴利,王泉.高强度管线钢精炼渣系的开发与实践[J].特殊钢,2010,31(3):27-29. |
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| 作者姓名： | 焦兴利 王泉 |
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| 作者单位： | 马鞍山钢铁股份有限公司第四钢轧总厂，马鞍山204302 |
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| 摘 要： | 根据马钢生产高强度管线钢的需求,结合CaO-Al2O3-SiO2相图12CaO·7Al2O3生成区域,开发了管线钢用钢包精炼渣系(%:55～60CaO、7～12SiO2、25～30Al2O3、4～8MgO)。300 t LF精炼实践表明,该精炼渣的平均脱硫率为73.2%,钢中终点硫含量可控制在0.002%以下;而且该渣系具有较好的吸收夹杂物的能力,精炼后钢中Alt-Als含量较低,为0.002%～0.013%。
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| 关 键 词： | 管线钢 精炼渣 脱硫率 夹杂物 |
| 收稿时间： | 2009-11-13 |
Development and Practice of Refining Slag Series for High Strength Pipe Line Steels |
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| Jiao Xingli,Wang Quan.Development and Practice of Refining Slag Series for High Strength Pipe Line Steels[J].Special Steel,2010,31(3):27-29. |
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| Authors: | Jiao Xingli Wang Quan |
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| Affiliation: | No4 Steelmaking and Rolling General Works, Maanshan Iron & Steel Co Ltd, Maanshan 204302 |
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| Abstract: | According to the requirement of production for high strength pipe line steels at Masteel and combined with the forming region of 12CaO , 7 Al2O3 of CaO-Al2O3-SiO2 phase diagram, the ladle refining slag series ( % ： 55 - 60CaO, 7 ?12SiO2, 25 ~ 30Al2O3,4 ?8MgO) for pipe line tube has been developed and applied. 300 t LF refining practice shows that with using the refining slag series, the average desulphurization rate is 73. 2% , the end sulphur content in steel is controlled less than 0. 002% ； and the slag series has nice capability to absorb inclusions, the Alt - Als content in steel is lower, i.e, 0. 002% -0.013%. |
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| Keywords: | Pipe Line Steel Refining Slag Desulphurization Rate Inclusions |
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