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In order to improve product quality, the steel-making process of 70 high carbon steel is optimized and improved by Baotou Steel. The results showed that the slab quality was significantly improved, levels of centre burst, center porosity and defect of non-metallic inclusions were all not over grade 0.5, proportion of columnar crystal was smaller and its texture was dense; the enrichment and segregation of carbon element in the center of casting blank of 70 steel were effectively reduced, central carbon segregation index decreased from 1.10 to 1.03 and no large-grained non-metallic inclusions were found in casting blank after the process optimization; the drawing fracture of wire rod was effectively suppressed and drawing property was significantly improved after the improvement.

, authors=Zhi-jun Yin1, Wen-yi Wang1, Xiao-min Zhao2, Shun Zhang1, authorsList=Zhi-jun Yin, Wen-yi Wang, Xiao-min Zhao, Shun Zhang, 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=1319241382364033795, articleId=1319241381948797697, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=包钢70高碳钢炼钢工艺优化及铸坯质量分析, columnId=1185887584472417142, journalTitle=包钢科技, columnName=品种质量与试验研究, runingTitle=null, highlight=null, articleAbstract=

为改善产品质量,包钢对70高碳钢炼钢工艺进行了优化改进,结果表明:工艺优化后,铸坯质量显著改善,中心裂纹、中心疏松、非金属夹杂物缺陷级别均不超过0.5级,柱状晶比例较小,组织结构致密;有效地降低了70钢铸坯中心碳元素的富集和偏析,中心碳偏析指数由1.10降至1.03,铸坯未见大颗粒非金属夹杂物;改善后,盘条拉拔断裂得到有效抑制,拉拔性能显著改善。

, authors=银志军1, 王文义1, 赵晓敏2, 张顺1, authorsList=银志军, 王文义, 赵晓敏, 张顺, authorCompany=null, correspAuthors=null, authorNote=

银志军(1987-),男,内蒙古乌兰察布市人,助理工程师,现从事钢铁新产品及炼钢新工艺研发工作。

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银志军(1987-),男,内蒙古乌兰察布市人,助理工程师,现从事钢铁新产品及炼钢新工艺研发工作。

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银志军(1987-),男,内蒙古乌兰察布市人,助理工程师,现从事钢铁新产品及炼钢新工艺研发工作。

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包钢70高碳钢炼钢工艺优化及铸坯质量分析
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银志军 1 , 王文义 1 , 赵晓敏 2 , 张顺 1
包钢科技 | 品种质量与试验研究 2020,46(4): 37-40
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包钢科技 |品种质量与试验研究 2020 , 46 (4) : 37 -40
包钢70高碳钢炼钢工艺优化及铸坯质量分析
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银志军1, 王文义1, 赵晓敏2, 张顺1
作者信息
  • 1.内蒙古包钢钢联股份有限公司炼钢厂,内蒙古 包头 014010
  • 2.内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
作者简介:

银志军(1987-),男,内蒙古乌兰察布市人,助理工程师,现从事钢铁新产品及炼钢新工艺研发工作。

Optimization for Steel-making Process and Analysis on Slab Quality of 70 High Carbon Steel of Baotou Steel
Zhi-jun Yin1, Wen-yi Wang1, Xiao-min Zhao2, Shun Zhang1
Affiliations
  • 1.Steel-making Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2020-08-25 doi: 10.13647/j.cnki.btgkj.2020.04.010
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为改善产品质量,包钢对70高碳钢炼钢工艺进行了优化改进,结果表明:工艺优化后,铸坯质量显著改善,中心裂纹、中心疏松、非金属夹杂物缺陷级别均不超过0.5级,柱状晶比例较小,组织结构致密;有效地降低了70钢铸坯中心碳元素的富集和偏析,中心碳偏析指数由1.10降至1.03,铸坯未见大颗粒非金属夹杂物;改善后,盘条拉拔断裂得到有效抑制,拉拔性能显著改善。

70高碳钢  /  铸坯  /  中心碳偏析  /  夹杂物

In order to improve product quality, the steel-making process of 70 high carbon steel is optimized and improved by Baotou Steel. The results showed that the slab quality was significantly improved, levels of centre burst, center porosity and defect of non-metallic inclusions were all not over grade 0.5, proportion of columnar crystal was smaller and its texture was dense; the enrichment and segregation of carbon element in the center of casting blank of 70 steel were effectively reduced, central carbon segregation index decreased from 1.10 to 1.03 and no large-grained non-metallic inclusions were found in casting blank after the process optimization; the drawing fracture of wire rod was effectively suppressed and drawing property was significantly improved after the improvement.

70 high carbon steel  /  casting blank  /  central carbon segregation  /  inclusion
银志军, 王文义, 赵晓敏, 张顺. 包钢70高碳钢炼钢工艺优化及铸坯质量分析. 包钢科技, 2020 , 46 (4) : 37 -40 . DOI: 10.13647/j.cnki.btgkj.2020.04.010
Zhi-jun Yin, Wen-yi Wang, Xiao-min Zhao, Shun Zhang. Optimization for Steel-making Process and Analysis on Slab Quality of 70 High Carbon Steel of Baotou Steel[J]. Science & Technology of Baotou Steel, 2020 , 46 (4) : 37 -40 . DOI: 10.13647/j.cnki.btgkj.2020.04.010

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doi: 10.13647/j.cnki.btgkj.2020.04.010
  • 接收时间:2020-06-28
  • 首发时间:2026-10-20
  • 出版时间:2020-08-25
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出版历史
  • 收稿日期:2020-06-28
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作者信息
    1.内蒙古包钢钢联股份有限公司炼钢厂,内蒙古 包头 014010
    2.内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
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https://castjournals.cast.org.cn/joweb/xtg/CN/10.13647/j.cnki.btgkj.2020.04.010
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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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