| 莱钢连铸20CrMnTiH钢非金属夹杂物研究 |
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| 引用本文： | 季春生,刘美,管庆刚,符浩,陈才.莱钢连铸20CrMnTiH钢非金属夹杂物研究[J].山东冶金,2005,27(1):40-42. |
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| 作者姓名： | 季春生 刘美 管庆刚 符浩 陈才 |
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| 作者单位： | 莱芜钢铁股份有限公司,山东,莱芜,271104;莱芜钢铁股份有限公司,山东,莱芜,271104;莱芜钢铁股份有限公司,山东,莱芜,271104;莱芜钢铁股份有限公司,山东,莱芜,271104;莱芜钢铁股份有限公司,山东,莱芜,271104 |
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| 摘 要： | 利用大样电解法、LEO-1450型能谱分析仪和NEOPHOT-32型金相显微镜对连铸生产的20CrMnTiH钢中非金属夹杂物的种类、含量、来源、形状、尺寸及分布等进行了研究。结果表明，精炼前夹杂物数量多，颗粒较大，类型主要为硅钙、硅锰酸盐等；中间包中主要为硅酸盐类型的球形和玻璃状夹杂物；铸坯中主要为硅铝酸盐球形夹杂物。经LF精炼后，非金属夹杂物去除率可达99％以上。
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| 关 键 词： | 电炉 连铸坯 非金属夹杂物 精炼 |
| 文章编号： | 1004-4620(2005)01-0040-03 |
| 修稿时间： | 2004年8月23日 |
Study on Non-Metallic Inclusion in 20CrMnTiH Steel by Continuous casting at Laiwu Steel |
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| JI Chun-sheng,LIU Mei,GUAN Qing-gang,FU Hao,CHEN Cai.Study on Non-Metallic Inclusion in 20CrMnTiH Steel by Continuous casting at Laiwu Steel[J].Shandong Metallurgy,2005,27(1):40-42. |
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| Authors: | JI Chun-sheng LIU Mei GUAN Qing-gang FU Hao CHEN Cai |
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| Abstract: | The type, content, origin, shape, dimension and distribution of the non-metallic inclusion in 20CrMnTiH steel by continuous casting are studied by means of the electrolytic separation technique, LEO-1450 spectrometer and NEOPHOT-32 microscope. The results show that the account of inclusion is more and the size of inclusion is larger before refinement, the type is mainly Si-Ca?Si-Mn inclusion, etc; inclusion in the tundish is mainly spherical and vitreous silicate type; inclusion in slab is mainly spherical silico aluminate inclusion type. Through refinement of LF, the rate of wiping away the non-metallic inclusion can reach to 99% above. |
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| Keywords: | electric arc furnace continuous casting slab non-metallic inclusion refinement |
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