Article(id=1198265199766631168, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198265193424847582, articleNumber=1009-5438(2023)04-0063-05, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1682179200000, receivedDateStr=2023-04-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763618286315, onlineDateStr=2025-11-20, pubDate=1692892800000, pubDateStr=2023-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763618286315, onlineIssueDateStr=2025-11-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763618286315, creator=13701087609, updateTime=1763618286315, updator=13701087609, issue=Issue{id=1198265193424847582, tenantId=1146029695717560320, journalId=1185652524569653253, year='2023', volume='49', issue='4', 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=1763618284803, creator=13701087609, updateTime=1763621606301, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1198279124902047995, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198265193424847582, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1198279124902047996, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198265193424847582, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=63, endPage=67, ext={EN=ArticleExt(id=1198265199980540673, articleId=1198265199766631168, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Influences of Straightening Process on Residual Stress of Heat-treated Rails, columnId=1198265195702354688, journalTitle=Science & Technology of Baotou Steel, columnName=Varieties and Quality and Experimental Study, runingTitle=null, highlight=null, articleAbstract=
In order to study the relations between straightening process and residual stress of rails, the stress-strain situation of rails during straightening process is simulated combining with the ABAQUS software of finite element analysis. Various straightening process plans of rails are with simulation analysis to determine the optimal one and are researched combining with the results of on-site process debugging. The results showed that the minimum elastic core of each straightening plan was within deformation zoneⅡ, so the residual stress of rails could be effectively reduced by reducing the rolling reduction of 2# and 4# straightening rolls as well as straightening speed of rails.
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为了研究钢轨矫直工艺与残余应力的关系,结合ABAQUS有限元分析软件,模拟钢轨矫直过程中钢轨应力应变情况。对多种钢轨矫直工艺方案进行模拟分析,确定最优矫直工艺方案,并结合现场工艺调试的结果进行研究。结果表明: 各矫直方案的最小弹性芯均处于第Ⅱ变形区内,所以降低2#、4#矫直辊压下量能有效降低钢轨残余应力,并且降低钢轨矫直速度也能有效降低钢轨残余应力。
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苏 航(1988-),男,内蒙古包头市人,硕士,高级工程师,现从事钢轨新产品研发相关工作。
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密度ρ /(kg·m-3) | 弹性模量E /GPa | 泊松比 | 切向 模量 | 屈服强度 /MPa |
| 7.8×103 | 210 | 0.29 | 6×1010 | 1 200 |
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某热处理钢轨材料参数
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密度ρ /(kg·m-3) | 弹性模量E /GPa | 泊松比 | 切向 模量 | 屈服强度 /MPa |
| 7.8×103 | 210 | 0.29 | 6×1010 | 1 200 |
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辊径D /mm | 辊距p /mm | 辊身长L /mm | 矫直速度 /(m·s-1) |
| 950~1 050 | 2 000 | 200 | 1 |
), ArticleFig(id=1198277413303058454, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表2, caption=
八辊矫直机水平辊基本参数
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辊径D /mm | 辊距p /mm | 辊身长L /mm | 矫直速度 /(m·s-1) |
| 950~1 050 | 2 000 | 200 | 1 |
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| 方案 | 2#矫直辊 | 4#矫直辊 | 6#矫直辊 | 8#矫直辊 |
| 1# | 19 | 16 | 10.5 | 3 |
| 2# | 22 | 12 | 9 | 7 |
| 3# | 22 | 10 | 9 | 7 |
), ArticleFig(id=1198277413458247705, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表3, caption=
不同矫直方案矫直辊压下量 mm
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| 方案 | 2#矫直辊 | 4#矫直辊 | 6#矫直辊 | 8#矫直辊 |
| 1# | 19 | 16 | 10.5 | 3 |
| 2# | 22 | 12 | 9 | 7 |
| 3# | 22 | 10 | 9 | 7 |
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| 方案 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Ⅶ |
| 1# | 0.63 | 0.23 | 0.35 | 0.43 | 0.64 | 0.94 | 1.00 |
| 2# | 0.59 | 0.30 | 0.38 | 0.55 | 0.73 | 1.00 | 1.00 |
| 3# | 0.59 | 0.30 | 0.54 | 0.73 | 0.84 | 0.87 | 1.00 |
), ArticleFig(id=1198277413588271132, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表4, caption=
模拟计算的各方案各变形区内的弹性芯
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| 方案 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Ⅶ |
| 1# | 0.63 | 0.23 | 0.35 | 0.43 | 0.64 | 0.94 | 1.00 |
| 2# | 0.59 | 0.30 | 0.38 | 0.55 | 0.73 | 1.00 | 1.00 |
| 3# | 0.59 | 0.30 | 0.54 | 0.73 | 0.84 | 0.87 | 1.00 |
), ArticleFig(id=1198277413646991390, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 矫直速度 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Ⅶ |
| 0.5 m/s | 906 | 1 095 | 1 183 | 1 179 | 1 193 | 1 193 | 1 193 |
| 1.0 m/s | 906 | 1 139 | 1 238 | 1 228 | 1 213 | 1 213 | 1 213 |
| 2.5 m/s | 906 | 1 186 | 1 285 | 1 263 | 1 256 | 1 256 | 1 256 |
), ArticleFig(id=1198277413709905952, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表5, caption=
不同矫直速度下各变形区内屈服极限 MPa
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| 矫直速度 | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | Ⅶ |
| 0.5 m/s | 906 | 1 095 | 1 183 | 1 179 | 1 193 | 1 193 | 1 193 |
| 1.0 m/s | 906 | 1 139 | 1 238 | 1 228 | 1 213 | 1 213 | 1 213 |
| 2.5 m/s | 906 | 1 186 | 1 285 | 1 263 | 1 256 | 1 256 | 1 256 |
), ArticleFig(id=1198277413789597730, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 2#矫直 辊/mm | 4#矫直 辊/mm | 6#矫直 辊/mm | 8#矫直 辊/mm | 残余应 力/MPa |
| 1# | 23 | 15 | 9 | 5 | +238 |
| 2# | 25 | 15 | 10 | 5 | +282 |
| 3# | 22 | 15 | 9 | 1 | +210 |
| 4# | 22 | 14 | 9 | 3.5 | +125 |
| 5# | 25 | 15 | 10 | 7 | +290 |
| 6# | 23 | 15 | 10 | 4 | +245 |
), ArticleFig(id=1198277413860900899, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表6, caption=
不同钢轨矫直模拟方案及残余应力
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| 方案 | 2#矫直 辊/mm | 4#矫直 辊/mm | 6#矫直 辊/mm | 8#矫直 辊/mm | 残余应 力/MPa |
| 1# | 23 | 15 | 9 | 5 | +238 |
| 2# | 25 | 15 | 10 | 5 | +282 |
| 3# | 22 | 15 | 9 | 1 | +210 |
| 4# | 22 | 14 | 9 | 3.5 | +125 |
| 5# | 25 | 15 | 10 | 7 | +290 |
| 6# | 23 | 15 | 10 | 4 | +245 |
), ArticleFig(id=1198277413936398372, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 矫直速度 /(m·s-1) | 2#矫直 辊/mm | 4#矫直 辊/mm | 6#矫直 辊/mm | 8#矫直 辊/mm |
| 模拟计算 | 1.5 | 22 | 14 | 9 | 3.5 |
| 1# | 1.5 | 20 | 15 | 10 | 3 |
| 2# | 1.5 | 23 | 15 | 10 | 0 |
), ArticleFig(id=1198277414011895845, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表7, caption=
生产调试稀土热处理钢轨矫直方案参数
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| 方案 | 矫直速度 /(m·s-1) | 2#矫直 辊/mm | 4#矫直 辊/mm | 6#矫直 辊/mm | 8#矫直 辊/mm |
| 模拟计算 | 1.5 | 22 | 14 | 9 | 3.5 |
| 1# | 1.5 | 20 | 15 | 10 | 3 |
| 2# | 1.5 | 23 | 15 | 10 | 0 |
), ArticleFig(id=1198277414070616102, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 轨底残余应力/MPa |
| 1-1 | +156 |
| 1-2 | +161 |
| 1-3 | +157 |
| 2-1 | +217 |
| 2-2 | +213 |
| 2-3 | +220 |
), ArticleFig(id=1198277414133530663, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198265199766631168, language=CN, label=表8, caption=
某热处理钢轨残余应力检测结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 轨底残余应力/MPa |
| 1-1 | +156 |
| 1-2 | +161 |
| 1-3 | +157 |
| 2-1 | +217 |
| 2-2 | +213 |
| 2-3 | +220 |
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