| 钢包喂CaSi线对钢中夹杂物变性的影响 |
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| 引用本文： | 张建,姜钧普,高喆,周国平.钢包喂CaSi线对钢中夹杂物变性的影响[J].炼钢,2000,16(2):26-30. |
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| 作者姓名： | 张建 姜钧普 高喆 周国平 |
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| 作者单位： | 1. 北京科技大学
2. 天津钢管公司 |
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| 摘 要： | 在生产铝镇静钢的工艺条件下，研究了钢包喂Ｃａｓｉ线处理后钢中夹杂物的组成、形态、尺寸和分布等的变化规律。结果表明，喂线后钢中钙铝比达到０．０９以上时，钢中的Ａｌ２Ｏ３类夹杂物能获得较好的变性；夹杂物中的钙铝比随喂线后钢中钙铝比的增大呈线笥增加趋势；较高的钢中钙铝比有利于连铸坯中大颗粒夹杂物的去除，有利于钢中夹杂物球化率的提高。
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| 关 键 词： | 钢包喂线 夹杂物变性 钙铝比 铝镇静钢 |
| 修稿时间： | 1999-03-26 |
Influence of CaSi Wire Feeding in Ladle Upon Inclusion Modification in Steel |
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| Zhang Jian,Jiang Junpu,Gao Zhe,Zhou Guoping.Influence of CaSi Wire Feeding in Ladle Upon Inclusion Modification in Steel[J].Steelmaking,2000,16(2):26-30. |
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| Authors: | Zhang Jian Jiang Junpu Gao Zhe Zhou Guoping |
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| Abstract: | This paper investigated the steelmaking process of Al-killed steel on the industrial scale and minutely researched into the modification tendency of the composition, morphology and dimension of inclusions in steel during CaSi wire feeding in ladle. The results of study show that alumina (Al 2O 3) inclusions in steel can expectably be modified into low melting point calcium aluminate phases with the Ca/Al ratio in liquid steel of no less than 0.09 after wire feeding. Moreover, with the increasing of Ca/Al ratio in liquid steel, the Ca/Al ratio in calcium aluminate inclusions will linearly increases. In addition, the high value of Ca/Al ratio in steel shall be favourable to the removing of the inclusions with big size in slabs and the increasing of the ratio of spheroidal inclusions in steel. |
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| Keywords: | CaSi wire feeding in ladle inclusion modification ratio of Ca/Al |
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