Article(id=1188049104908206340, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, articleNumber=1009-5438(2024)02-0069-05, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1705075200000, receivedDateStr=2024-01-13, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761182579495, onlineDateStr=2025-10-23, pubDate=1713974400000, pubDateStr=2024-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761182579495, onlineIssueDateStr=2025-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761182579495, creator=13701087609, updateTime=1761182579495, updator=13701087609, issue=Issue{id=1188049099627574244, tenantId=1146029695717560320, journalId=1185652524569653253, year='2024', volume='50', issue='2', 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=1761182578236, creator=13701087609, updateTime=1761291001661, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1188503860504052243, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1188503860504052244, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=69, endPage=73, ext={EN=ArticleExt(id=1188049105226973455, articleId=1188049104908206340, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research on Key Technologies of 380HBW Grade LH High Strength Heat Treated Rail Satisfied American Standard, columnId=1187095652984042303, journalTitle=Science & Technology of Baotou Steel, columnName=Variety Quality and Experimental Study, runingTitle=null, highlight=null, articleAbstract=
In the paper, the general situations of production processes for 380HBW grade LH on line heat treated rail exported to Mexico are introduced. Its batch production is successful by microalloying component design, control of high cleanliness for smelting process as well as accurately regulating and controlling the on line heat treatment process of rail. All its performances could satisfy the technical requirements of users and requirements of AREMA standard as well as pass the SGS international testing and certification so that it could satisfy the operating requirements of freight train with great axle load on heavy haul railway abroad. It has been exported to such countries as Mexico, Australia and America.
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文章介绍了出口墨西哥380HBW级别LH在线热处理钢轨的生产工艺概况,通过对钢轨微合金化成分设计、冶炼工艺高洁净度控制和精准在线热处理工艺调控,成功批量生产LH在线热处理钢轨。钢轨各项性能满足用户技术要求和AREMA标准要求,通过SGS国际检测认证,满足国外重载铁路大轴重货运列车的运行要求,钢轨已出口至墨西哥、澳大利亚、美国等国家。
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王嘉伟(1988-),男,内蒙古包头市人,高级工程师,现从事钢轨产品研发工作。
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2000., articleTitle=null, refAbstract=null), Reference(id=1188503203072061622, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, doi=null, pmid=null, pmcid=null, year=2000, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[4], rfOrder=3, authorNames=余永宁, journalName=金属学原理, refType=null, unstructuredReference=余永宁.
金属学原理[M]. 北京: 冶金工业出版社,
2000., articleTitle=null, refAbstract=null), Reference(id=1188503203130781879, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, doi=null, pmid=null, pmcid=null, year=2020, volume=46, issue=2, pageStart=59, pageEnd=63, url=null, language=null, rfNumber=[5], rfOrder=4, authorNames=王嘉伟, journalName=包钢科技, refType=null, unstructuredReference=王嘉伟. 包钢百米75 kg/m U75V在线热处理钢轨研发[J].
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2020,
46(2):59-63., articleTitle=包钢百米75 kg/m U75V在线热处理钢轨研发, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1188503198126977137, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, xref=1, ext=[AuthorCompanyExt(id=1188503198135365746, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, companyId=1188503198126977137, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1188503198290555001, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, companyId=1188503198273777783, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 内蒙古包钢钢联股份有限公司轨梁厂,内蒙古 包头 014010)])], figs=[ArticleFig(id=1188503200459010207, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=EN, label=null, caption=null, figureFileSmall=O3cVNk/Z75+EJPU7J+G7XA==, figureFileBig=5E2ud9SV5rmW4dcgvFxCBw==, tableContent=null), ArticleFig(id=1188503200538701984, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=CN, label=图1, caption=
过冷度对珠光体组织形成的影响示意图, figureFileSmall=O3cVNk/Z75+EJPU7J+G7XA==, figureFileBig=5E2ud9SV5rmW4dcgvFxCBw==, tableContent=null), ArticleFig(id=1188503200597422241, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=EN, label=null, caption=null, figureFileSmall=4MZxzcgbbAfOz8usm2FFQg==, figureFileBig=O22Ej437wT8ScPE/4RaWXQ==, tableContent=null), ArticleFig(id=1188503200677114018, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=CN, label=图2, caption=
LH钢轨CCT曲线, figureFileSmall=4MZxzcgbbAfOz8usm2FFQg==, figureFileBig=O22Ej437wT8ScPE/4RaWXQ==, tableContent=null), ArticleFig(id=1188503200735834275, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=EN, label=null, caption=null, figureFileSmall=OHYfHIu+ZAoV/Eu4eub63g==, figureFileBig=pTAVlRCz2V+HTE5yvRKAaw==, tableContent=null), ArticleFig(id=1188503200811331748, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=CN, label=图3, caption=
LH钢轨TTT曲线, figureFileSmall=OHYfHIu+ZAoV/Eu4eub63g==, figureFileBig=pTAVlRCz2V+HTE5yvRKAaw==, tableContent=null), ArticleFig(id=1188503201801187493, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=EN, label=null, caption=null, figureFileSmall=6wgKEApc+P6u7x4zwiUTdA==, figureFileBig=FiZLt4m+K+vugXc1B++VIA==, tableContent=null), ArticleFig(id=1188503201859907750, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049104908206340, language=CN, label=图4, caption=
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| 项目 | C+Si+Mn+Cr | P | S |
| 标准要求 | 1.92~3.77 | ≤0.020 | ≤0.020 |
| 最小值 | 2.86 | 0.012 | 0.001 |
| 最大值 | 3.05 | 0.018 | 0.007 |
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LH在线热处理钢轨化学成分(质量分数) %
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| 项目 | C+Si+Mn+Cr | P | S |
| 标准要求 | 1.92~3.77 | ≤0.020 | ≤0.020 |
| 最小值 | 2.86 | 0.012 | 0.001 |
| 最大值 | 3.05 | 0.018 | 0.007 |
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| 项目 | H | O | N |
| 平均 | 0.000 106 | 0.000 7 | 0.004 1 |
| 最小值 | 0.000 071 | 0.000 3 | 0.003 2 |
| 最大值 | 0.000 174 | 0.001 2 | 0.004 9 |
| 标准要求 | ≤0.000 25 | ≤0.003 | ≤0.009 |
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LH在线热处理钢轨气体含量(质量分数) %
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| 项目 | H | O | N |
| 平均 | 0.000 106 | 0.000 7 | 0.004 1 |
| 最小值 | 0.000 071 | 0.000 3 | 0.003 2 |
| 最大值 | 0.000 174 | 0.001 2 | 0.004 9 |
| 标准要求 | ≤0.000 25 | ≤0.003 | ≤0.009 |
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| 屈服强度 Rp0.2/MPa | 抗拉强度 Rm/MPa | 延伸率A /% | 轨顶面硬度 (HBW) |
| 最小值 | 891 | 1 300 | 11.5 | 383 |
| 最大值 | 943 | 1 343 | 16.0 | 403 |
| 平均值 | 917 | 1 326 | 14.0 | 393 |
| AREMA标准 | ≥820 | ≥1 180 | ≥10 | ≥370 |
| 用户技术协议 | ≥830 | ≥1 280 | ≥10 | ≥380 |
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LH在线热处理钢轨的力学性能检验结果
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| 屈服强度 Rp0.2/MPa | 抗拉强度 Rm/MPa | 延伸率A /% | 轨顶面硬度 (HBW) |
| 最小值 | 891 | 1 300 | 11.5 | 383 |
| 最大值 | 943 | 1 343 | 16.0 | 403 |
| 平均值 | 917 | 1 326 | 14.0 | 393 |
| AREMA标准 | ≥820 | ≥1 180 | ≥10 | ≥370 |
| 用户技术协议 | ≥830 | ≥1 280 | ≥10 | ≥380 |
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| 样品编号 | 轨底残余应力/MPa |
| 1#-1 | +185 |
| 1#-2 | +182 |
| 2#-1 | +175 |
| 2#-2 | +170 |
| 3#-1 | +181 |
| 3#-2 | +178 |
| TB/T 2344.1—2020要求 | ≤250 |
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LH热处理钢轨轨底残余应力
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| 样品编号 | 轨底残余应力/MPa |
| 1#-1 | +185 |
| 1#-2 | +182 |
| 2#-1 | +175 |
| 2#-2 | +170 |
| 3#-1 | +181 |
| 3#-2 | +178 |
| TB/T 2344.1—2020要求 | ≤250 |
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