Article(id=1240631744169300303, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240631729627648823, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.03.037, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1700668800000, receivedDateStr=2023-11-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773719257633, onlineDateStr=2026-03-17, pubDate=1717171200000, pubDateStr=2024-06-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773719257633, onlineIssueDateStr=2026-03-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773719257633, creator=13701087609, updateTime=1773719257633, updator=13701087609, issue=Issue{id=1240631729627648823, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='3', pageStart='1', pageEnd='181', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773719254166, creator=13701087609, updateTime=1773724083554, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1240651985603580488, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240631729627648823, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1240651985603580489, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240631729627648823, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=176, endPage=181, ext={EN=ArticleExt(id=1240631745050104236, articleId=1240631744169300303, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Experimental Study on Cracks in Welding Joints of Ultra-high Strength Steel and BS700 High Strength Steel with Different Welding Materials, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=
When ultra-high strength steel with tensile strength more than 1 600 MPa and BS700 high-strength steel with tensile strength more than 760 MPa are joined together by metal active gas welding, weld cracks are prone to occur in the seam of joint. To solve this problem, comparative welding tests were performed by using ER70-G or ER307Mo welding wire with diameter of 1.0 mm, respectively, with initial welding current of 160-180 A, voltage of 21-24 V, and final welding current of 190-210 A, voltage of 23-26 V. The comparison of process and weldability show that welding with ER307Mo can lead to the sample with bending property obviously better than that by welding with ER70-G. The sample after welding with ER70-G can be found to have micro-cracks not going through the whole cross section of welding seam, with cracking rate on the cross section of seam reaching 35.29%, but no cracks are found on the section of welding seam by using ER307Mo. It is concluded that the ER307Mo welding wire is more suitable for welding ultra-high strength steel and BS700 high strength steel. The study has solved the cracking problem in the joint of ultra-high strength steel and BS700 high strength steel, which can provide a solution for the welding of dissimilar high-strength steel with larger difference in tensile strength.
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采用熔化极活性气体保护焊对抗拉强度大于1 600 MPa的超高强钢与抗拉强度大于760 MPa的BS700高强钢进行焊接时,组合接头焊缝易出现焊接裂纹,为解决该问题,使用直径1.0 mm的ER70-G焊材或ER307Mo焊材,在打底焊接电流160~180 A、电压21~24 V,盖面焊接电流190~210 A、电压23~26 V条件下开展了焊接对比试验。工艺性和焊接性试验结果表明,使用ER307Mo焊材焊接的试样弯曲性能明显优于使用ER70-G焊材焊接的试样;使用ER70-G焊材焊接的试样焊缝存在未贯穿的微裂纹,焊缝断面裂纹率达到35.29%;使用ER307Mo焊材焊接的试样焊缝断面未发现裂纹。ER307Mo焊材更适合超高强钢与BS700高强钢的焊接。试验解决了超高强钢与BS700高强钢组合接头的开裂问题,为抗拉强度相差较大的异种高强钢的焊接提供了解决方案。
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1.Technology Center of Sanhe Intelligent Special Equipment Co Ltd, Changsha 410100, Hunan, China
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1.山河智能特种装备有限公司 技术中心,湖南 长沙 410100
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王德军(1970—),男,山东临沂人,高级工程师,主要研究方向为焊接制造技术及工装设计制造。E-mail:congcikaishi@163.com
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王德军(1970—),男,山东临沂人,高级工程师,主要研究方向为焊接制造技术及工装设计制造。E-mail:congcikaishi@163.com
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43(3): 151-155., articleTitle=MAG焊过程中热输入对DL510超高强钢焊接接头组织及力学性能的影响, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1240651349843570845, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, xref=1., ext=[AuthorCompanyExt(id=1240651349860348064, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, companyId=1240651349843570845, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.山河智能特种装备有限公司 技术中心,湖南 长沙 410100)]), AuthorCompany(id=1240651349990371509, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, xref=2., ext=[AuthorCompanyExt(id=1240651350002954428, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, companyId=1240651349990371509, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.湖南省岩土施工装备与控制工程技术研究中心,湖南 长沙 410100)]), AuthorCompany(id=1240651350128783553, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, xref=3., ext=[AuthorCompanyExt(id=1240651350141366466, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, companyId=1240651350128783553, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Technology Department of Hunan Fuli Technology Co Ltd, Changsha 410100, Hunan, China), AuthorCompanyExt(id=1240651350145560772, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, companyId=1240651350128783553, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.湖南福力科技有限公司 技术部,湖南 长沙 410100)])], figs=[ArticleFig(id=1240651354004320915, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=qST/K7IrnIGJnCJzQaR3hw==, figureFileBig=J5+yXdoeztLrWjl62bpSsg==, tableContent=null), ArticleFig(id=1240651354130150048, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图1, caption=
试板尺寸示意图(单位:mm)(a)力学性能检测试板尺寸及取样位置;(b)Y型坡口试板尺寸图;(c)T型接头试板尺寸图;(d)巴东试验试板尺寸图
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组合接头无损探伤检测结果(a)ER70-G焊材,相控阵检测;(b)ER70-G焊材,磁粉检测;(c)ER307Mo焊材,相控阵检测;(d)ER307Mo焊材,磁粉检测
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组合接头焊缝金相图片(a)ER70-G焊材,低倍金相;(b)ER70-G焊材,高倍金相;(c)ER307Mo焊材,低倍金相;(d)ER307Mo焊材,高倍金相
, figureFileSmall=3E61XCSA7Ai0wOncYIoZ9w==, figureFileBig=+qLbvOYBmeU9J4GuVYpHFA==, tableContent=null), ArticleFig(id=1240651354822210271, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=qOJ4m63j6FVsynTywLv2Fw==, figureFileBig=g1fa2nSOJ116i2UrGgasBw==, tableContent=null), ArticleFig(id=1240651354931262191, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图4, caption=
Y型坡口焊接裂纹宏观及断面形貌(a)ER70-G焊材,斜Y型坡口焊接;(b)ER70-G焊材,断面;(c)ER307Mo,斜Y型坡口焊接;(d)ER307Mo,断面
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T型接头焊接裂纹断面, figureFileSmall=/m5PMqwCFWyVjRMr4LE/fw==, figureFileBig=9s7WWjt9YqYV2lw4AioJ1g==, tableContent=null), ArticleFig(id=1240651355262612246, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=1fhiaBVKIJkOc8QfCbeN2Q==, figureFileBig=83C5hozTE/HWp64lmlEihQ==, tableContent=null), ArticleFig(id=1240651355363275555, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图6, caption=
使用ER70-G焊材焊接试样焊接影响区金相组织, figureFileSmall=1fhiaBVKIJkOc8QfCbeN2Q==, figureFileBig=83C5hozTE/HWp64lmlEihQ==, tableContent=null), ArticleFig(id=1240651355510076208, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=VQDWT30zbz6mkCCSSO8qtQ==, figureFileBig=YMfVrVJj9n0jG3IPORziww==, tableContent=null), ArticleFig(id=1240651355665265469, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图7, caption=
使用ER70-G焊材焊接的试样, figureFileSmall=VQDWT30zbz6mkCCSSO8qtQ==, figureFileBig=YMfVrVJj9n0jG3IPORziww==, tableContent=null), ArticleFig(id=1240651355791094596, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=Iz0JAOHkTaO29949HWz1wg==, figureFileBig=zQ7RDzYcqZDtrPv7hjWPTw==, tableContent=null), ArticleFig(id=1240651355937895250, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图8, caption=
使用ER307Mo焊材焊接的试样, figureFileSmall=Iz0JAOHkTaO29949HWz1wg==, figureFileBig=zQ7RDzYcqZDtrPv7hjWPTw==, tableContent=null), ArticleFig(id=1240651356101473121, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=Qx2eWW7/OqmjRtigKiGyvQ==, figureFileBig=ZAQ2zUdKUiJaxejpcFmKEw==, tableContent=null), ArticleFig(id=1240651356214719342, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图9, caption=
试板6等分截取的两组试样, figureFileSmall=Qx2eWW7/OqmjRtigKiGyvQ==, figureFileBig=ZAQ2zUdKUiJaxejpcFmKEw==, tableContent=null), ArticleFig(id=1240651356306994041, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=lPOr98/9RGpFuyNogU1NEQ==, figureFileBig=quBoUybL89QzBn5ZIrVqAA==, tableContent=null), ArticleFig(id=1240651356428628867, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图10, caption=
刚性拘束试验焊缝截面低倍宏观形貌, figureFileSmall=lPOr98/9RGpFuyNogU1NEQ==, figureFileBig=quBoUybL89QzBn5ZIrVqAA==, tableContent=null), ArticleFig(id=1240651356617372570, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=vamXDQr8mBJ0TZZm6ypG5w==, figureFileBig=CPHNGnVuiMwyBe7iW8BIkA==, tableContent=null), ArticleFig(id=1240651356793533351, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图11, caption=
巴东试验结果在焊接结构产品上的再现实验(a)试制产品骨架焊接;(b)试制骨架蒙皮焊接
, figureFileSmall=vamXDQr8mBJ0TZZm6ypG5w==, figureFileBig=CPHNGnVuiMwyBe7iW8BIkA==, tableContent=null), ArticleFig(id=1240651356910973874, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=jwodzPMSmuomDjrzqQJ5uQ==, figureFileBig=2dKr8UuvAarSwv1pFfy3Xw==, tableContent=null), ArticleFig(id=1240651357057774536, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=图12, caption=
两种焊材所得焊接产品的射线检测结果(a)ER70-G焊材,横向裂纹;(b)ER70-G焊材,纵向裂纹;(c)ER307Mo焊材,直焊缝;(d)ER307Mo焊材,圆形焊缝
, figureFileSmall=jwodzPMSmuomDjrzqQJ5uQ==, figureFileBig=2dKr8UuvAarSwv1pFfy3Xw==, tableContent=null), ArticleFig(id=1240651357380735969, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | C | Si | Mn | P | S | Cr | Ti | Mo | V | Nb | Ni |
|---|
| 超高强钢(J钢) | 0.40~0.45 | ≤0.30 | 1.30~1.60 | ≤0.015 | ≤0.005 | 0.70~1.10 | 0.05~0.10 | 0.25~0.35 | / | / | / |
| BS700高强钢 | ≤0.12 | ≤0.60 | ≤1.75 | ≤0.025 | ≤0.015 | / | ≤0.22 | ≤0.50 | ≤0.20 | ≤0.09 | / |
| ER70-G | ≤0.08 | ≤0.58 | ≤1.58 | ≤0.007 | ≤0.005 | / | / | ≤0.38 | / | / | ≤0.85 |
| ER307Mo | ≤0.10 | ≤0.80 | 3.5~5.5 | ≤0.030 | ≤0.025 | 16.0~19.0 | ≤0.25 | 0.50~2.0 | / | ≤0.20 | 6.0~9.0 |
), ArticleFig(id=1240651357502370799, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=表1, caption=
试板母材、焊材化学成分(质量分数)
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| 材料名称 | C | Si | Mn | P | S | Cr | Ti | Mo | V | Nb | Ni |
|---|
| 超高强钢(J钢) | 0.40~0.45 | ≤0.30 | 1.30~1.60 | ≤0.015 | ≤0.005 | 0.70~1.10 | 0.05~0.10 | 0.25~0.35 | / | / | / |
| BS700高强钢 | ≤0.12 | ≤0.60 | ≤1.75 | ≤0.025 | ≤0.015 | / | ≤0.22 | ≤0.50 | ≤0.20 | ≤0.09 | / |
| ER70-G | ≤0.08 | ≤0.58 | ≤1.58 | ≤0.007 | ≤0.005 | / | / | ≤0.38 | / | / | ≤0.85 |
| ER307Mo | ≤0.10 | ≤0.80 | 3.5~5.5 | ≤0.030 | ≤0.025 | 16.0~19.0 | ≤0.25 | 0.50~2.0 | / | ≤0.20 | 6.0~9.0 |
), ArticleFig(id=1240651357611422717, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料名称 | 抗拉强度Rm/MPa | 屈服强度Re/MPa | 伸长率A/% |
|---|
| 超高强钢 | ≥1 600 | ≥1 350 | ≥8 |
| BS700高强钢 | ≥760 | ≥730 | ≥25 |
| ER70-G | ≥690 | ≥600 | ≥14 |
| ER307Mo | ≥550 | ≥500 | ≥25 |
), ArticleFig(id=1240651357766610955, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=表2, caption=
试板母材和焊材的机械力学性能
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| 材料名称 | 抗拉强度Rm/MPa | 屈服强度Re/MPa | 伸长率A/% |
|---|
| 超高强钢 | ≥1 600 | ≥1 350 | ≥8 |
| BS700高强钢 | ≥760 | ≥730 | ≥25 |
| ER70-G | ≥690 | ≥600 | ≥14 |
| ER307Mo | ≥550 | ≥500 | ≥25 |
), ArticleFig(id=1240651357921800216, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 层级 | 道次 | 焊丝直径D/mm | 电流I/A | 电压U/V | 焊接速度v/(cm·min-1) | 气体流量Q/(L·min-1) | 热输入E/(kJ·cm-1) |
|---|
| 打底焊接 | 1 | 1.0 | 160~180 | 21~24 | 30~40 | 20~25 | 4.7 |
| 盖面焊接 | 2 | 1.0 | 190~210 | 23~26 | 20~30 | 20~25 | 8.1 |
), ArticleFig(id=1240651358068600877, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=表3, caption=
主要焊接参数
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| 层级 | 道次 | 焊丝直径D/mm | 电流I/A | 电压U/V | 焊接速度v/(cm·min-1) | 气体流量Q/(L·min-1) | 热输入E/(kJ·cm-1) |
|---|
| 打底焊接 | 1 | 1.0 | 160~180 | 21~24 | 30~40 | 20~25 | 4.7 |
| 盖面焊接 | 2 | 1.0 | 190~210 | 23~26 | 20~30 | 20~25 | 8.1 |
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| 检验总项目 | 检验分项目 | 计量单位 | 标准值 | 检验结果 | 单项判定 | 备注 |
|---|
| 拉伸试验 | 抗拉强度Rm | MPa | ≥550 | 675~750 | 合格 | 拉伸接头 |
| 断裂位置 | / | 断焊缝 | 断焊缝 | 合格 |
| 冲击功(KV2,-40 ℃) | / | J | ≥4 | 10~34 | 合格 | 热影响区 |
| 17~18 | 合格 | 焊缝区 |
| 弯曲试验 | 正弯 | / | 按标准规定(d≤8a,α=90°~180°) | 180°完好 | 合格 | a为试板厚度,α为弯曲角度 |
| 正弯 | 180°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
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使用ER307Mo焊丝的力学性能试验结果
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| 检验总项目 | 检验分项目 | 计量单位 | 标准值 | 检验结果 | 单项判定 | 备注 |
|---|
| 拉伸试验 | 抗拉强度Rm | MPa | ≥550 | 675~750 | 合格 | 拉伸接头 |
| 断裂位置 | / | 断焊缝 | 断焊缝 | 合格 |
| 冲击功(KV2,-40 ℃) | / | J | ≥4 | 10~34 | 合格 | 热影响区 |
| 17~18 | 合格 | 焊缝区 |
| 弯曲试验 | 正弯 | / | 按标准规定(d≤8a,α=90°~180°) | 180°完好 | 合格 | a为试板厚度,α为弯曲角度 |
| 正弯 | 180°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
), ArticleFig(id=1240651358525780055, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | 检验分项目 | 计量单位 | 标准值 | 检验结果 | 单项判定 | 备注 |
|---|
| 拉伸试验 | 抗拉强度Rm | MPa | ≥690 | 787~828 | 合格 | 拉伸接头 |
| 断裂位置 | / | 断焊缝 | 断焊缝 | 合格 |
| 冲击功(KV2,-40 ℃) | / | J | ≥4 | 18~32 | 合格 | 热影响区 |
| 13~19 | 合格 | 焊缝区 |
| 弯曲试验 | 正弯 | / | 按标准规定(d≤8a,α=90°~180°) | 120°完好 | 合格 | a为试板厚度,α为弯曲角度 |
| 正弯 | 180°完好 | 合格 |
| 背弯 | 120°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
), ArticleFig(id=1240651358659997798, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240631744169300303, language=CN, label=表5, caption=
使用ER70-G焊丝的力学性能试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 检验项目 | 检验分项目 | 计量单位 | 标准值 | 检验结果 | 单项判定 | 备注 |
|---|
| 拉伸试验 | 抗拉强度Rm | MPa | ≥690 | 787~828 | 合格 | 拉伸接头 |
| 断裂位置 | / | 断焊缝 | 断焊缝 | 合格 |
| 冲击功(KV2,-40 ℃) | / | J | ≥4 | 18~32 | 合格 | 热影响区 |
| 13~19 | 合格 | 焊缝区 |
| 弯曲试验 | 正弯 | / | 按标准规定(d≤8a,α=90°~180°) | 120°完好 | 合格 | a为试板厚度,α为弯曲角度 |
| 正弯 | 180°完好 | 合格 |
| 背弯 | 120°完好 | 合格 |
| 背弯 | 180°完好 | 合格 |
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