| 高强度包晶钢S690保护渣性能对超宽板铸坯裂纹的影响 |
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| 引用本文： | 曹树卫,高新军,贺瑞飞.高强度包晶钢S690保护渣性能对超宽板铸坯裂纹的影响[J].特殊钢,2021,42(1):25-28. |
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| 作者姓名： | 曹树卫 高新军 贺瑞飞 |
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| 作者单位： | 1. 安阳钢铁股份有限公司
2. 安阳钢铁股份有限公司第二炼轧厂
3. 安阳钢铁集团公司技术中心 |
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| 摘 要： | 设计了超宽板坯高强包晶钢S690的A、B两种保护渣,配方A(/％):28～32SiO2,38～40CaO,4.8～6.0TC,2.3～4.3Al2O3,6.7～9.7F;B(/％):25.2～26.4SiO2,41～43CaO,4.8～6.0TC,2.3～4.3Al2O3,10.5～11.8F.保护渣在生产现场试验后,...
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| 关 键 词： | 超宽板坯 高强包晶钢 保护渣 性能 |
Effect of Properties of Mould Powder for High StrengthPeritectic Steel S690 on Crack of Jumbo-wide Cast Slab |
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| Cao Shuwei,Gao Xinjun,Ruifei.Effect of Properties of Mould Powder for High StrengthPeritectic Steel S690 on Crack of Jumbo-wide Cast Slab[J].Special Steel,2021,42(1):25-28. |
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| Authors: | Cao Shuwei Gao Xinjun Ruifei |
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| Affiliation: | 1 Anyang Iron & Steel Co. Ltd. , Anyang 455004； 2 The No 2 Steel Making & Rolling Plant, Anyang Iron & Steel Co. Ltd. , Anyang 455004 ； 3 The Technology Center, Anyang Iron & Steel Co. Ltd. , Anyang 455004 |
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| Abstract: | Two kinds of A and B mould powder, A(/% ) ：28 -32SiO2,38 ~40CaO,4. 8-6. 0TC,2. 3 ~4. 3A12O3, 6.7~9. 7F； B(/% ) ：25. 2 ~26. 4SiO2,41 ~ 43CaO,4. 8 ~ 6. 0TC ,2. 3 ~ 4.3A12O3 10. 5 ~11. 8F for high strength peritectic steel S690 jumbo-wide slab are designed. After mould powders are used in situ, theirs heat transfer properties and films are analyzed. The results show that the properties of powder A with basicity 1. 25 ~ 1. 35, viscosity at 1 300 ℃ 0. 11 ~ 0. 16 Pa ? s, solidification temperature 1 170 - 1 200 °C are optimum. As compared with powder B (basicity 1.58 ~ 1.64, 1 300 °C vicosity 0. 07 ~0. 10 Pa ? s, solidification temperature 1 220 ~ 1 250 ℃ ), the cast slab crack rate decrease from 0. 69% to 0. 30%. |
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