Article(id=1202984229194916235, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, articleNumber=1009-5438(2022)03-0055-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1647446400000, receivedDateStr=2022-03-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764743390605, onlineDateStr=2025-12-03, pubDate=1656086400000, pubDateStr=2022-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764743390605, onlineIssueDateStr=2025-12-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764743390605, creator=13701087609, updateTime=1764743390605, updator=13701087609, issue=Issue{id=1202984226762219866, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='3', 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=1764743390026, creator=13701087609, updateTime=1764744768237, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202990007461049256, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202990007461049257, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=55, endPage=58, ext={EN=ArticleExt(id=1202984229459157397, articleId=1202984229194916235, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Analysis on Material Characteristics of Pipe for 850 MPa Drill Pipe of Rotary Drilling Rig, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=
The material characteristics of seamless pipe for 850 MPa drill pipe of rotary drilling rig manufactured by Baotou Steel Tube Co., Ltd. such as mechanical properties, microstructure, ductile-brittle transition temperature, torsional strength and bending fatigue are tested and analyzed. The results showed that its such technical indexes as the mechanical properties, content of nonmetallic inclusions, grades of grain size and banded segregation could all satisfy the requirements of applying 850 MPa high strength and high toughness drill pipe of rotary drilling rig. Moreover, it is with such advantages as low ductile-brittle transition temperature, high torsional strength and good resistance to bending fatigue.
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通过对包钢钢管有限公司生产的850 MPa旋挖机钻杆用无缝管进行力学性能、显微组织、韧脆转变温度、扭转强度、弯曲疲劳等材料特性的测试分析,结果表明:产品的力学性能、非金属夹杂物含量、晶粒度尺寸级别、带状偏析级别等技术指标均能满足850 MPa高强高韧旋挖机钻杆用管的使用要求。同时,材料还具有韧脆转变温度低、抗扭强度大、抗弯曲疲劳性好等优点。
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董 珍(1969-),女,内蒙古呼和浩特市人,硕士,正高级工程师,现从事无缝管产品研发工作。
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董 珍(1969-),女,内蒙古呼和浩特市人,硕士,正高级工程师,现从事无缝管产品研发工作。
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董 珍(1969-),女,内蒙古呼和浩特市人,硕士,正高级工程师,现从事无缝管产品研发工作。
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| C | Si | Mn | P | S | Al | Cr | Mo |
| <0.35 | <0.40 | <1.70 | ≤0.015 | ≤0.015 | <0.10 | <0.40 | <0.25 |
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试样的化学成分(质量分数)%
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| C | Si | Mn | P | S | Al | Cr | Mo |
| <0.35 | <0.40 | <1.70 | ≤0.015 | ≤0.015 | <0.10 | <0.40 | <0.25 |
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| 项目 | 晶粒度 | 带状组织 | 非金属夹杂物 |
| A粗 | A细 | B粗 | B细 | C粗 | C细 | D粗 | D细 | Ds |
| 检验结果 | 9 | 0.5 | 0 | 0.5 | 0 | 0.5 | 0 | 0 | 0 | 0.5 | 0 |
| 协议要求 | ≥6 | ≤4 | 1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤2.0 |
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| 项目 | 晶粒度 | 带状组织 | 非金属夹杂物 |
| A粗 | A细 | B粗 | B细 | C粗 | C细 | D粗 | D细 | Ds |
| 检验结果 | 9 | 0.5 | 0 | 0.5 | 0 | 0.5 | 0 | 0 | 0 | 0.5 | 0 |
| 协议要求 | ≥6 | ≤4 | 1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤1.5 | ≤2.0 | ≤2.0 |
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| 项目 | 屈服强度
/MPa | 抗拉强度
/MPa | 断后伸长率
/% | 断面收缩率
/% | -20 ℃纵向全尺寸
冲击功/J | 平均布
氏硬度 |
| 检验结果 | 942 | 1 029 | 29.5 | 59 | 90 | 92 | 90 | 299 |
| 协议要求 | ≥835 | ≥980 | ≥12 | ≥45 | ≥34 | 260~360 |
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钢管的力学性能
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| 项目 | 屈服强度
/MPa | 抗拉强度
/MPa | 断后伸长率
/% | 断面收缩率
/% | -20 ℃纵向全尺寸
冲击功/J | 平均布
氏硬度 |
| 检验结果 | 942 | 1 029 | 29.5 | 59 | 90 | 92 | 90 | 299 |
| 协议要求 | ≥835 | ≥980 | ≥12 | ≥45 | ≥34 | 260~360 |
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| 试样编号 | 规定非比例扭矩/(N·mm) | 规定非比例扭转强度/MPa | 最大扭矩/(N·mm) | 抗扭强度/MPa |
| 1 | 135.28 | 701 | 167.73 | 865 |
| 2 | 132.76 | 688 | 165.72 | 859 |
| 3 | 134.46 | 697 | 166.39 | 863 |
| 4 | 137.92 | 715 | 171.83 | 886 |
| 5 | 134.88 | 699 | 168.33 | 873 |
| 平均值 | 135.06 | 700 | 168.00 | 869 |
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钢种的扭转试验结果
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| 试样编号 | 规定非比例扭矩/(N·mm) | 规定非比例扭转强度/MPa | 最大扭矩/(N·mm) | 抗扭强度/MPa |
| 1 | 135.28 | 701 | 167.73 | 865 |
| 2 | 132.76 | 688 | 165.72 | 859 |
| 3 | 134.46 | 697 | 166.39 | 863 |
| 4 | 137.92 | 715 | 171.83 | 886 |
| 5 | 134.88 | 699 | 168.33 | 873 |
| 平均值 | 135.06 | 700 | 168.00 | 869 |
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