| HRB400带肋钢筋盘条脆断原因分析 |
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| 引用本文： | 孟庆德,覃业军.HRB400带肋钢筋盘条脆断原因分析[J].轧钢,2014,31(5):68-70. |
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| 作者姓名： | 孟庆德 覃业军 |
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| 作者单位： | 中天钢铁集团有限公司技术中心，江苏 常州 213011 |
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| 摘 要： | 通过对HRB400带肋钢筋盘条脆断试样进行金相组织、晶粒度、微区成分偏析、非金属夹杂物的检测分析，找出了盘条脆断的原因，即盘条在斯太尔摩辊道上的风机开启区域“打爬行”，冷却时间过长，产生了脆性组织，使盘条局部塑性降低，产生脆性断裂。
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| 关 键 词： | 脆断 螺纹钢盘条 金相组织 成分偏析 打爬行 |
| 收稿时间： | 2014-02-25 |
Brittle fracture cause analysis of HRB400 ribbed bar coil |
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| MENG Qing-de,QIN Ye-jun.Brittle fracture cause analysis of HRB400 ribbed bar coil[J].Steel Rolling,2014,31(5):68-70. |
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| Authors: | MENG Qing-de QIN Ye-jun |
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| Affiliation: | （Technology Center, Zenith Steel Group Co., Ltd., Changzhou 213011, China） |
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| Abstract: | The brittle fracture cause of HRB400 ribbed bar coil was found out based on detection and analysis of the micro- structure, grain size , micro-zone segregation and non-metallic inclusions of the fracture samples. As the ribbed bar coil slipped along the fan-open area of the Stelmor roller, its cooling time was too long to form brittle microstructure, so that lo- cal plasticity reduction was induced, and lead to the brittle fracture of the ribbed bar. |
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| Keywords: | ribbed bar coil brittle fracture microstructure composition segregation |
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