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With the process of desulphurization of hot metal-basic oxygen furnace-LF refing-vacuum degassing (VD) /RH treatment-continuous casting (CC), the yield is not closely related to the grade of steel, fluctuation of sulfur and oxygen content after add the rare earth, but it is strongly related to the type of processes. The effects of rare earth on denaturation of inclusions in steel are different for different steel grades. However, after add rare earth, the size of inclusions in steel decreases and their distribution becomes more dispersive so that the fatigue and impact performances are improved. The welding performance of steel plate after add rare earth is improved by delaying the formation of upper bainite and inhibiting the growth of austenite grains during welding.

, authors=Jian-guo Zhi1, 2, authorsList=Jian-guo Zhi, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319225474115555642, articleId=1319225473658376504, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=包钢稀土钢的进展及技术方向分析, columnId=1185887584006844505, journalTitle=包钢科技, columnName=专家论坛, runingTitle=null, highlight=null, articleAbstract=

采用铁水脱硫-复吹转炉-LF精炼-VD脱气/RH处理-CC连铸工艺,加入稀土后收得率与钢种、硫氧含量波动不密切,与工艺类型相关性强。不同钢种,稀土对钢中夹杂物的变性作用不同,但加稀土后,钢中夹杂物尺寸减小,更加弥散化分布,并由此提升疲劳性能与冲击性能。加入稀土通过推迟上贝氏体的形成和抑制焊接过程中奥氏体晶粒的长大,改善钢板的焊接性能。

, authors=智建国1, 2, authorsList=智建国, authorCompany=null, correspAuthors=null, authorNote=

智建国(1964-),男,内蒙古丰镇市人,博士,正高级工程师,现从事炼钢工艺技术及稀土钢生产技术研究工作。

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2.内蒙古自治区稀土钢产品研发企业重点实验室,内蒙古 包头 014010, bio={"content":"

智建国(1964-),男,内蒙古丰镇市人,博士,正高级工程师,现从事炼钢工艺技术及稀土钢生产技术研究工作。

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智建国(1964-),男,内蒙古丰镇市人,博士,正高级工程师,现从事炼钢工艺技术及稀土钢生产技术研究工作。

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包钢稀土钢的进展及技术方向分析
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包钢稀土钢的进展及技术方向分析
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智建国(1964-),男,内蒙古丰镇市人,博士,正高级工程师,现从事炼钢工艺技术及稀土钢生产技术研究工作。

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智建国1, 2
作者信息
  • 1.内蒙古包钢钢联股份有限公司总工室,内蒙古 包头 014010
  • 2.内蒙古自治区稀土钢产品研发企业重点实验室,内蒙古 包头 014010
作者简介:

智建国(1964-),男,内蒙古丰镇市人,博士,正高级工程师,现从事炼钢工艺技术及稀土钢生产技术研究工作。

Analysis on Progress and Technical Direction for Rare Earth Steel of Baotou Steel
Jian-guo Zhi1, 2
Affiliations
  • 1.Office of Chief Engineer of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research & Development, Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2019-10-25 doi: 10.13647/j.cnki.btgkj.2019.06.001
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采用铁水脱硫-复吹转炉-LF精炼-VD脱气/RH处理-CC连铸工艺,加入稀土后收得率与钢种、硫氧含量波动不密切,与工艺类型相关性强。不同钢种,稀土对钢中夹杂物的变性作用不同,但加稀土后,钢中夹杂物尺寸减小,更加弥散化分布,并由此提升疲劳性能与冲击性能。加入稀土通过推迟上贝氏体的形成和抑制焊接过程中奥氏体晶粒的长大,改善钢板的焊接性能。

稀土钢  /  连铸工艺  /  微合金化  /  氧化物冶金

With the process of desulphurization of hot metal-basic oxygen furnace-LF refing-vacuum degassing (VD) /RH treatment-continuous casting (CC), the yield is not closely related to the grade of steel, fluctuation of sulfur and oxygen content after add the rare earth, but it is strongly related to the type of processes. The effects of rare earth on denaturation of inclusions in steel are different for different steel grades. However, after add rare earth, the size of inclusions in steel decreases and their distribution becomes more dispersive so that the fatigue and impact performances are improved. The welding performance of steel plate after add rare earth is improved by delaying the formation of upper bainite and inhibiting the growth of austenite grains during welding.

rare earth steel  /  continuous casting process  /  microalloying  /  oxide metallurgy
智建国. 包钢稀土钢的进展及技术方向分析. 包钢科技, 2019 , 45 (6) : 1 -5 . DOI: 10.13647/j.cnki.btgkj.2019.06.001
Jian-guo Zhi. Analysis on Progress and Technical Direction for Rare Earth Steel of Baotou Steel[J]. Science & Technology of Baotou Steel, 2019 , 45 (6) : 1 -5 . DOI: 10.13647/j.cnki.btgkj.2019.06.001

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doi: 10.13647/j.cnki.btgkj.2019.06.001
  • 接收时间:2019-09-16
  • 首发时间:2026-10-20
  • 出版时间:2019-10-25
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  • 收稿日期:2019-09-16
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    1.内蒙古包钢钢联股份有限公司总工室,内蒙古 包头 014010
    2.内蒙古自治区稀土钢产品研发企业重点实验室,内蒙古 包头 014010
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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