| 30MnSi PC钢棒拉拔断裂原因分析 |
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| 引用本文： | 岳好明,薛俊峰.30MnSi PC钢棒拉拔断裂原因分析[J].重型机械科技,2013(3):40-41. |
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| 作者姓名： | 岳好明 薛俊峰 |
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| 作者单位： | 日照钢铁有限公司,山东276806 |
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| 摘 要： | 30MnSi在拉拔刻槽过程中出现断裂现象，通过宏观形貌观察、化学成分、金相分析以及扫描电镜微区分析，得出：连铸坯皮下卷渣及局部增碳造成热轧母材表面结疤，在后期拉拔过程中以结疤缺陷为裂纹源产生断裂。
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| 关 键 词： | 30MnSi 拉拔断裂 卷渣 局部增碳 结疤 |
Cause Analysis of Drawing Fracture for 30MnSi PC Steel Bar |
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| Yue Haoming,Xue Junfeng.Cause Analysis of Drawing Fracture for 30MnSi PC Steel Bar[J].Heavy Machinery Science and Technology,2013(3):40-41. |
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| Authors: | Yue Haoming Xue Junfeng |
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| Affiliation: | Yue Haoming, Xue Junfeng |
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| Abstract: | PC steel bar made from 30MnSi occurred breakup phenomenon during drawing and grooving process. By adopting a succession of macro appearance observation, chemical composition, metallurgical analysis and scanning e- lectron microscope microzone analysis, it was concluded that entrapped slag under the surface and local carburetion of continuous casting blank resulted in surface scar of hot rolled base material, further the scar defect was the crack origin to form fracture in later drawing process. |
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| Keywords: | 30MnSi drawing fracture entrapped slag local carburetion scar |
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