| 船用锚链钢M20Mn冷弯断裂原因分析 |
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| 引用本文： | 王立君,余德河,孙永喜,毕咏梅.船用锚链钢M20Mn冷弯断裂原因分析[J].山东冶金,2004,26(1):49-51. |
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| 作者姓名： | 王立君 余德河 孙永喜 毕咏梅 |
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| 作者单位： | 莱芜钢铁股份有限公司,特殊钢厂,山东,莱芜,271105 |
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| 摘 要： | 通过化学成分测试和金相组织分析，认为M20Mn试样冷弯断裂的主要原因是圆钢存在严重的热轧带状组织和表面增碳。采取选择合适的浇注温度和注速、在浇注过程中避免保护渣污染钢液、控制终轧温度等预防措施，消除了M20Mn冷弯断裂缺陷。
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| 关 键 词： | 锚链钢 冷弯 断裂 带状组织 表面增碳 船舶 |
| 文章编号： | 1004-4620(2004)01-0049-02 |
| 修稿时间： | 2003年6月6日 |
Analysis of Cold Bending Fracture of M20Mn Anchor Chain Steel for Ship |
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| WANG Li-jun,YU De-he,SUN Yong-xi,BI Yong-mei.Analysis of Cold Bending Fracture of M20Mn Anchor Chain Steel for Ship[J].Shandong Metallurgy,2004,26(1):49-51. |
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| Authors: | WANG Li-jun YU De-he SUN Yong-xi BI Yong-mei |
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| Abstract: | The main cause of cold bending fracture of M20Mn sample is caused by severe hot rolling strip structure and surface carbon pickup existed in round steel by means of chemical and microstructure analysis. Through adopting some measures, such as selecting suitably pouring temperature and speed, avoiding protecting slag to pollution liquid steel in pouring process, controlling finish rolling temperature and so on, the cold bending fracture of M20Mn steel can be eliminated. |
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| Keywords: | anchor chain steel cold bending fracture strip structure surface carbon pickup |
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