| 高强度灰铸铁新型孕育剂的研究 |
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| 引用本文： | 子澍,吴国蔚,张国臣,白波. 高强度灰铸铁新型孕育剂的研究[J]. 铸造技术, 2007, 28(6): 745-750 |
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| 作者姓名： | 子澍 吴国蔚 张国臣 白波 |
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| 作者单位： | 1. 北京工业大学材料科学与工程学院,北京,100022
2. 北京第一机床厂,北京,100021 |
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| 基金项目： | 鸣谢：本研究中承蒙北京工业大学焊接原理科研组对铸铁中含气量进入了定量分析,在此致谢. |
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| 摘 要： | 研究75SiFe和FeSiRE27合金的不同加入量对高强度灰铸铁性能的影响。结果表明：含稀土元素的孕育剂可以降低铸铁的过冷度及形成白口的倾向性,能降低硬度及形成气孔的倾向性,可以提高铸铁的抗拉强度。根据研究成果,熔制了新型Fe-Si-RE合金,用它做孕育剂处理铁液,生产了机床铸件,取得了良好的预期效果。
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| 关 键 词： | Fe-Si-RE孕育剂 过冷度 白口宽度 硬度 |
| 文章编号： | 1000-8365（2007）06-0745-06 |
| 修稿时间： | 2007-01-312007-04-20 |
Research on a New Type of Inoculant of High Strength Gray Iron |
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| ZI Shu,WU Guo-wei,ZHANG Guo-chen,BAI Bo. Research on a New Type of Inoculant of High Strength Gray Iron[J]. Foundry Technology, 2007, 28(6): 745-750 |
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| Authors: | ZI Shu WU Guo-wei ZHANG Guo-chen BAI Bo |
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| Affiliation: | 1. College of Materials Science and Engineering, Beijing Palytechnic University, Beijing 100022, China; 2. No. 1 Machine Tool Plant of Beijing, Beijing 100021 ,China |
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| Abstract: | The effect of adding different contents of 75SiFe and FeSiRe27 alloy into molten iron on the properties of high strength gray iron is studied. a inoculant containing rare earth element could The experimental results show that the addition of reduce the undercooling, the chilling tendency, hardness and blowhole formation tendency of the cast iron, and increase its tensile strength. Based on the research findings, a new type Fe-Si-Re alloy inoculant is prepared for molten iron. The machine tool castings treated with such inoculant obtain predicted effect. |
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| Keywords: | Fe-Si-Re alloy inoculant Undercooling The chilling width Hardness |
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