| 轧钢加热炉炉底管开裂原因分析 |
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| 引用本文： | 陈利涛.轧钢加热炉炉底管开裂原因分析[J].理化检验(物理分册),2012(5):342-344. |
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| 作者姓名： | 陈利涛 |
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| 作者单位： | 河北钢铁集团金鼎重工股份有限公司 |
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| 摘 要： | 采用宏观检验、化学成分分析、力学性能测试、金相检验等方法对轧钢加热炉炉底管产生开裂的原因进行了分析。结果表明：炉底管的开裂是由于原材料本身热处理不当产生魏氏组织和晶粒粗大，降低了钢的韧性和伸长率，在应力的作用下发生开裂。
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| 关 键 词： | 轧钢 加热炉 炉底管 开裂 魏氏组织 热处理 |
Analysis on Cracking Reason of Bottom Tube of Heating Furnace for Steel Rolling |
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| CHEN Li-tao.Analysis on Cracking Reason of Bottom Tube of Heating Furnace for Steel Rolling[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2012(5):342-344. |
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| Authors: | CHEN Li-tao |
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| Affiliation: | CHEN Li-tao(Jinding Heavy Industry Stock Co.,Ltd.,Hebei Iron and Steel Group,Wuan Hebei 056300,China) |
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| Abstract: | By means of macroscopic inspection,chemical composition analysis,mechanical property testing,metallographic examination and so on,the cracking resason of bottom tube of heating furnace for steel rolling was analyzed.The results showed that the cracking reason was due to widmanstatten structure and coarse grain produced by inappropricate heat treatment for raw materials,the toughness and elongation of steel were reduced,under the effect of stress,the cracking occurred in the steel tube at last. |
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| Keywords: | steel rolling heating furnace bottom tube cracking widmanstatten structure heat treatment |
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