Article(id=1188049580823294572, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049574255018819, articleNumber=1009-5438(2024)01-0028-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1701446400000, receivedDateStr=2023-12-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761182692961, onlineDateStr=2025-10-23, pubDate=1708790400000, pubDateStr=2024-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761182692961, onlineIssueDateStr=2025-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761182692961, creator=13701087609, updateTime=1761182692961, updator=13701087609, issue=Issue{id=1188049574255018819, tenantId=1146029695717560320, journalId=1185652524569653253, year='2024', volume='50', issue='1', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761182691396, creator=13701087609, updateTime=1761290996781, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1188503840023265810, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049574255018819, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1188503840023265811, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049574255018819, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=28, endPage=31, ext={EN=ArticleExt(id=1188049581091730032, articleId=1188049580823294572, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research and Practices on Scale Production of Rare Earth Steel Products, columnId=1187100781414069182, journalTitle=Science & Technology of Baotou Steel, columnName=Production Practices and Management, runingTitle=null, highlight=null, articleAbstract=
There is often flocculent flow at nozzle during casting rare earth steel products with continuous casting machine so that the casting with normal casting speed could not be met. In severe case, the flocculation at tundish nozzle causes interruption of production so that continuous casting production is seriously affected. The steelmaking technologies of rare earth steel are optimized by studying the reaction mechanisms after adding rare earth elements into molten steel as well as analyzing the effects of oxygen content of molten steel, oxidizability of slag, protective casting of continuous casting machine and casting temperature on yield of rare earth Ce. As a result, the yield and castability of rare earth elements in molten steel are improved as well as the number of continuous casting heats for rare earth steel products reaches 25 so that scale production of rare earth steel products is ultimately achieved.
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稀土钢产品在连铸机浇注时经常发生水口絮流,无法满足正常拉速的浇注作业,严重时中间包水口絮死,造成生产中断,严重影响连铸生产。通过研究稀土元素加入钢水后的反应机理,分析钢水的氧含量、炉渣的氧化性、连铸机的保护浇注及浇注温度等对稀土Ce元素收得率的影响,优化稀土钢炼钢工艺,提高了稀土在钢水的收得率和可浇性,稀土钢产品的连浇炉数达到25炉,最终实现稀土钢产品规模化生产。
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张嘉华(1979-),男,内蒙古乌兰察布市人,高级工程师,现从事炼钢工艺研究工作。
, authorsList=张嘉华, 王皓, 魏晓东, 张建, 陈冰晶)}, authors=[Author(id=1188503401487810642, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049580823294572, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1188503401538142292, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049580823294572, authorId=1188503401487810642, language=EN, stringName=Jia-hua Zhang, firstName=Jia-hua, middleName=null, lastName=Zhang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1188503401601056855, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049580823294572, authorId=1188503401487810642, language=CN, stringName=张嘉华, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio={"content":"
张嘉华(1979-),男,内蒙古乌兰察布市人,高级工程师,现从事炼钢工艺研究工作。
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张嘉华(1979-),男,内蒙古乌兰察布市人,高级工程师,现从事炼钢工艺研究工作。
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| 序号 | 稀土加入量 | 加稀土前氧含量 | 钢水铈含量 | 收得率 |
| 1# | 0.003 0 | 0.000 3 | 0.001 1 | 35.64 |
| 2# | 0.003 0 | 0.000 4 | 0.001 2 | 39.96 |
| 3# | 0.003 0 | 0.000 3 | 0.001 2 | 39.98 |
| 4# | 0.003 0 | 0.000 4 | 0.001 1 | 36.68 |
| 5# | 0.003 0 | 0.000 3 | 0.001 2 | 40.22 |
| 6# | 0.003 0 | 0.000 4 | 0.001 0 | 33.02 |
| 7# | 0.003 0 | 0.000 4 | 0.001 2 | 39.94 |
| 8# | 0.003 0 | 0.000 3 | 0.001 0 | 33.29 |
| 9# | 0.003 0 | 0.000 4 | 0.000 5 | 18.21 |
| 10# | 0.003 0 | 0.000 4 | 0.000 8 | 27.10 |
), ArticleFig(id=1188503403928895648, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049580823294572, language=CN, label=表1, caption=
加入稀土前钢水氧含量与收得率(质量分数) %
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| 序号 | 稀土加入量 | 加稀土前氧含量 | 钢水铈含量 | 收得率 |
| 1# | 0.003 0 | 0.000 3 | 0.001 1 | 35.64 |
| 2# | 0.003 0 | 0.000 4 | 0.001 2 | 39.96 |
| 3# | 0.003 0 | 0.000 3 | 0.001 2 | 39.98 |
| 4# | 0.003 0 | 0.000 4 | 0.001 1 | 36.68 |
| 5# | 0.003 0 | 0.000 3 | 0.001 2 | 40.22 |
| 6# | 0.003 0 | 0.000 4 | 0.001 0 | 33.02 |
| 7# | 0.003 0 | 0.000 4 | 0.001 2 | 39.94 |
| 8# | 0.003 0 | 0.000 3 | 0.001 0 | 33.29 |
| 9# | 0.003 0 | 0.000 4 | 0.000 5 | 18.21 |
| 10# | 0.003 0 | 0.000 4 | 0.000 8 | 27.10 |
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| 序号 | 稀土 加入量 | 钢水铈 含量 | 炉渣FeO 含量 | 收得率 |
| 1# | 0.003 0 | 0.000 5 | 1.08 | 33.02 |
| 2# | 0.003 0 | 0.000 7 | 1.26 | 25.86 |
| 3# | 0.003 0 | 0.000 7 | 1.05 | 36.60 |
| 4# | 0.003 0 | 0.000 6 | 1.08 | 39.94 |
| 5# | 0.003 0 | 0.000 7 | 1.35 | 28.87 |
| 6# | 0.003 0 | 0.000 8 | 1.26 | 28.42 |
| 7# | 0.003 0 | 0.000 7 | 1.08 | 25.60 |
| 8# | 0.003 0 | 0.000 6 | 1.00 | 18.21 |
| 9# | 0.003 0 | 0.000 6 | 2.24 | 20.28 |
| 10# | 0.003 0 | 0.000 6 | 0.99 | 40.72 |
), ArticleFig(id=1188503404994248870, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049580823294572, language=CN, label=表2, caption=
加入稀土前炉渣的氧化性与收得率(质量分数) %
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 稀土 加入量 | 钢水铈 含量 | 炉渣FeO 含量 | 收得率 |
| 1# | 0.003 0 | 0.000 5 | 1.08 | 33.02 |
| 2# | 0.003 0 | 0.000 7 | 1.26 | 25.86 |
| 3# | 0.003 0 | 0.000 7 | 1.05 | 36.60 |
| 4# | 0.003 0 | 0.000 6 | 1.08 | 39.94 |
| 5# | 0.003 0 | 0.000 7 | 1.35 | 28.87 |
| 6# | 0.003 0 | 0.000 8 | 1.26 | 28.42 |
| 7# | 0.003 0 | 0.000 7 | 1.08 | 25.60 |
| 8# | 0.003 0 | 0.000 6 | 1.00 | 18.21 |
| 9# | 0.003 0 | 0.000 6 | 2.24 | 20.28 |
| 10# | 0.003 0 | 0.000 6 | 0.99 | 40.72 |
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