| 消失模铸造灰铸铁石墨形态的研究 |
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| 引用本文： | 解明国,胡志君,程和法,孙洪超,金何,刘伟.消失模铸造灰铸铁石墨形态的研究[J].合肥工业大学学报(自然科学版),2011(9):1313-1316. |
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| 作者姓名： | 解明国 胡志君 程和法 孙洪超 金何 刘伟 |
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| 作者单位： | 中国科学技术大学工程科学学院;合肥工业大学材料科学与工程学院;安徽合力股份有限公司合肥铸锻厂; |
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| 摘 要： | 在消失模铸造条件下,文章研究了冷却速度、碳当量、硫质量分数及孕育方法对亚共晶灰铸铁石墨形态的影响.结果表明:当铸铁的碳当量降低时,在铸件的薄壁处极易出现过冷石墨,E型石墨数量增多；通过瞬时孕育,可显著改善石墨形核的条件,控制过冷石墨的形成；灰铸铁中,含硫量对石墨组织也具有很重要的影响,当灰铸铁的含硫量为0.08％～0....
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| 关 键 词： | 消失模铸造 灰铸铁 石墨形态 |
Research on graphite morphology of gray cast iron produced via lost foam casting |
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| XIE Ming-guo,HU Zhi-jun,CHENG He-fa,SUN Hong-chao,JIN He,LIU Wei.Research on graphite morphology of gray cast iron produced via lost foam casting[J].Journal of Hefei University of Technology(Natural Science),2011(9):1313-1316. |
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| Authors: | XIE Ming-guo HU Zhi-jun CHENG He-fa SUN Hong-chao JIN He LIU Wei |
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| Institution: | XIE Ming-guo1,HU Zhi-jun2,CHENG He-fa2,SUN Hong-chao3,JIN He3,LIU Wei3(1.School of Engineering Science,University of Science and Technology of China,Hefei 230027,China,2.School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,3.Hefei Casting and Forging Works,Anhui Heli Co.,Ltd.,Hefei 230022,China) |
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| Abstract: | This paper studies the effects of cooling rate,carbon equivalent,sulfur content,and inoculation method on the distribution of graphite morphology of hypoeutectic gray cast iron produced via lost foam casting.The results show that the undercooled graphite is easily generated in the thin-walled part of casting and the amount of type-E graphite of gray cast iron increases with the decrease of carbon equivalent.Instant inoculation can improve the nucleation condition of graphite greatly.Accordingly,the amount o... |
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| Keywords: | lost foam casting gray cast iron graphite morphology |
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