CN1185056C - 冷轧带肋钢筋母材和冷轧带肋钢筋的生产工艺及产品 - Google Patents
冷轧带肋钢筋母材和冷轧带肋钢筋的生产工艺及产品 Download PDFInfo
- Publication number
- CN1185056C CN1185056C CNB011270128A CN01127012A CN1185056C CN 1185056 C CN1185056 C CN 1185056C CN B011270128 A CNB011270128 A CN B011270128A CN 01127012 A CN01127012 A CN 01127012A CN 1185056 C CN1185056 C CN 1185056C
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- China
- Prior art keywords
- steel bar
- mother metal
- cold rolled
- rolling
- crb800
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
Abstract
Description
级别代号 | 钢种 | 化学成份(%) | |||||
C | Si | Mn | Ti | P | S | ||
CRB800 | 24MnTi | 0.19~0.27 | 0.17~0.37 | 1.20~1.60 | 0.01~0.05 | ≤0.045 | ≤0.045 |
20MnSi | 0.17~0.25 | 0.40~0.80 | 1.20~1.60 | ≤0.045 | ≤0.045 |
钢种 | 开轧温度℃ | BGV入口温度℃ | 吐丝温度℃ | 斯太尔摩冷却线风机 | 辊道速度rmp |
CRB800母材 | 1100±30 | ≤980 | 960±20 | 1-2#开85% | 70 |
钢种 | 抗拉强度σbMPa | 伸长率δ5% | 冷弯试验180°d=3ad=弯心直径a=试样直径 |
CRB800母材 | ≥650 | ≥22 | 无裂纹 |
元素 | C | Mn | P | S | Si | Nb | Ceq |
含量(%) | 0.18~0.22 | 1.3~1.51 | 0.018~0.032 | 0.018~0.030 | 0.49~0.62 | 0.018~0.025 | 0.4~0.48 |
项目 | σs(N/mm2) | σb(N/mm2) | δ5(%) |
母材的力学性能 | 485~555 | 670~755 | 24~30 |
项目 | σ0.2(N/mm2) | σb(N/mm2) | δ100(%) | 冷弯试验180°,d=3ad=弯心直径a=试样直径 |
抽检的产品性能 | 645~740 | 810~865 | 6~7 | 无裂纹 |
国家标准 | ≥640 | ≥800 | ≥4 | 无裂纹 |
来样编号/试样编号 | 276-1/OW1395 | 276-20/OW1396 | 277/OW1397 | |
松弛性能 | 标准值 | 实测值 | ||
10h测定时间内松弛率% | ≤5 | 3.6 | 3.9 | |
100h测定时间内松弛率% | 4.8 | 5.0 | 3.6 | |
1000h松弛率% | ≤8 | 5.9* | 5.8 | |
备注 | *:5.9为推算1000h松弛率。 | |||
初负荷为相邻试样最大负荷的70%,其中试样编号为OW1397试样的初负荷为相邻试样最大负荷的72.8%。 |
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB011270128A CN1185056C (zh) | 2001-07-23 | 2001-07-23 | 冷轧带肋钢筋母材和冷轧带肋钢筋的生产工艺及产品 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB011270128A CN1185056C (zh) | 2001-07-23 | 2001-07-23 | 冷轧带肋钢筋母材和冷轧带肋钢筋的生产工艺及产品 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1332045A CN1332045A (zh) | 2002-01-23 |
CN1185056C true CN1185056C (zh) | 2005-01-19 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB011270128A Expired - Fee Related CN1185056C (zh) | 2001-07-23 | 2001-07-23 | 冷轧带肋钢筋母材和冷轧带肋钢筋的生产工艺及产品 |
Country Status (1)
Country | Link |
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CN (1) | CN1185056C (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100406602C (zh) * | 2004-10-12 | 2008-07-30 | 昆明钢铁股份有限公司 | 低合金冷轧带肋钢筋专用母材的制备方法 |
CN100406603C (zh) * | 2004-10-12 | 2008-07-30 | 昆明钢铁股份有限公司 | 冷轧带肋钢筋专用母材的制备方法 |
CN100406604C (zh) * | 2004-10-12 | 2008-07-30 | 昆明钢铁股份有限公司 | 制钉及冷轧带肋钢筋专用母材的制备方法 |
CN100395368C (zh) * | 2005-10-17 | 2008-06-18 | 马鞍山钢铁股份有限公司 | 铌钛复合微合金化控冷钢筋用钢及其生产方法 |
CN100465321C (zh) * | 2005-10-17 | 2009-03-04 | 马鞍山钢铁股份有限公司 | 含微量铌控冷钢筋用钢及其生产方法 |
CN105132656A (zh) * | 2015-09-08 | 2015-12-09 | 南京钢铁股份有限公司 | 冷轧螺纹钢母材的坯料选取及生产工艺控制方法 |
CN110681697A (zh) * | 2019-09-20 | 2020-01-14 | 中冶赛迪工程技术股份有限公司 | 一种适应直接轧制的长材生产线工艺设备 |
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2001
- 2001-07-23 CN CNB011270128A patent/CN1185056C/zh not_active Expired - Fee Related
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CN1332045A (zh) | 2002-01-23 |
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Owner name: NANJING IRON AND STEEL UNION CO., LTD. Free format text: FORMER OWNER: NANJING IRON AND STEEL GROUP CO., LTD. Effective date: 20040806 |
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Effective date of registration: 20040806 Address after: 210035 Nanjing iron and steel works, Dachang Town, Jiangsu, Nanjing Applicant after: Nanjing Iron & Steel United Co., Ltd. Address before: 210035 Nanjing iron and steel works, Dachang Town, Jiangsu, Nanjing Applicant before: Nanjing Iron &. Steel Group Co., Ltd. |
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Owner name: NANJING NANGANG INDUSTRY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: NANJING UNITE STEEL CO., LTD. Effective date: 20091120 |
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Effective date of registration: 20091120 Address after: Liuhe District of Nanjing City, Jiangsu Province, xiejiadian Patentee after: Nanjing Iron & Steel United Co., Ltd. Address before: Nanjing steel factory of Dachang Town Nanjing city Jiangsu Province Patentee before: Nanjing Iron & Steel United Co., Ltd. |
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Granted publication date: 20050119 Termination date: 20120723 |