| Cu、Mn元素对发动机球铁曲轴组织和性能的影响 |
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| 引用本文： | 朱先勇,刘耀辉,宋雨来,于思荣,张英波,杜军.Cu、Mn元素对发动机球铁曲轴组织和性能的影响[J].金属热处理,2006,31(10):51-54. |
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| 作者姓名： | 朱先勇 刘耀辉 宋雨来 于思荣 张英波 杜军 |
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| 作者单位： | 吉林大学,材料科学与工程学院,吉林长春,130025 |
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| 基金项目： | 吉林省长春市科技局科研项目 |
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| 摘 要： | 研究了不同含量的Cu、Mn对球铁曲轴组织和性能的影响规律，同时对比分析了普通砂型和壳型填铁丸两种工艺条件下球铁曲轴的组织和性能。结果表明，当0．6wt％Cu与0．4wt％Mn配合时，可以获得抗拉强度较高的珠光体球铁，其强度与伸长率均满足QT600—3的要求。与普通砂型相比，壳型填铁丸工艺条件有利于球铁中总石墨球增多、圆整度提高及珠光体含量的提高，使性能得到改善。
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| 关 键 词： | 球墨铸铁 曲轴 壳型填铁丸 显微组织 性能 |
| 文章编号： | 0254-6051（2006）10-0051-04 |
| 收稿时间： | 2006-05-18 |
| 修稿时间： | 2006-05-18 |
Effect of Cu and Mn on Structures and Properties of Nodular Cast Iron Crankshaft in Engine |
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| ZHU Xian-yong,LIU Yao-hui,SONG Yu-lai,YU Si-rong,ZHANG Ying-bo,DU Jun.Effect of Cu and Mn on Structures and Properties of Nodular Cast Iron Crankshaft in Engine[J].Heat Treatment of Metals,2006,31(10):51-54. |
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| Authors: | ZHU Xian-yong LIU Yao-hui SONG Yu-lai YU Si-rong ZHANG Ying-bo DU Jun |
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| Affiliation: | College of Materials Science and Engineering,Jilin University,Changchun Jilin 130025 ,China |
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| Abstract: | The effects of Cu and Mn on the structures and properties of nodular cast iron crankshaft were studied, and the structures and properties of the crankshafts under two different processes of green sand casting and shell with iron pellet casting were compared and analyzed. The results show that when the content of Cu is 0. 6wt% and Mn is 0. 4wt%, pearlite nodular iron with higher tensile strength can be obtained,both the strength and elongation can meet the specifications of ite QT600 -3. Comparing with the green sand casting process, shell casting process has advantages in obtaining finer graphite and high content of pearlite structures and improving properties of nodular cast irons. |
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| Keywords: | nodular cast iron crankshaft shell with iron pellet casting process microstructure property |
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