| 硅钡处理对轴承钢大型球状夹杂(Ds)的影响 |
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| 引用本文： | 杜佳美,王日红,许加陆,刘宪民. 硅钡处理对轴承钢大型球状夹杂(Ds)的影响[J]. 河南冶金, 2012, 20(5): 17-18,29 |
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| 作者姓名： | 杜佳美 王日红 许加陆 刘宪民 |
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| 作者单位： | 中天钢铁集团有限公司 |
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| 摘 要： | 为防止轴承钢产生大型球状夹杂,所以对轴承对钢中的钙含量有严格的控制要求。为解决轴承钢连铸过程的水口堵塞问题,不少钢厂采用真空后喂硅钡线对钢水进行夹杂物变性处理。但通过两种工艺条件下(有硅钡和无硅钡处理)形成的大型球状夹杂的电镜分析发现,硅钡处理对大型球状夹杂的形成有促进作用,在喂线后的软吹过程中钡夹杂上浮并不充分。
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| 关 键 词： | 轴承钢 硅钡处理 大型球状夹杂 |
INFLUENCE OF SI-BA TREATMENT ON LARGE GLOBULAR INCLUSIONS ( DS ) IN BEARING STEEL |
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| Du Jiamei , Wang Rihong , Xu Jialu , Liu Xinmin. INFLUENCE OF SI-BA TREATMENT ON LARGE GLOBULAR INCLUSIONS ( DS ) IN BEARING STEEL[J]. Henan Metallurgy, 2012, 20(5): 17-18,29 |
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| Authors: | Du Jiamei Wang Rihong Xu Jialu Liu Xinmin |
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| Affiliation: | Du Jiamei Wang Rihong Xu Jialu Liu Xinmin(Technology Center of Zenith Steel Group Co.,Ltd) |
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| Abstract: | To prevent formation of large globular inclusions in bearing steel,calcium content in molten steel was strictly limited.In order to resolve nozzle clogging in continual casting process,many steel plants used Si-Ba wire feeding inclusion modification for molten steel after vacuum treatment,Through analyzing large globular inclusions by SEM in two kinds of process,Si-Ba treatment and Non Si-Ba treatment,we found that Si-Ba treatment could promote the formation of large globular inclusions,and the floating of Ba-inclusions was insufficiency during soft stirring after wire feeding. |
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| Keywords: | bearing steel Si-Ba treatment large globular inclusions |
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