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| 超低温高韧性球墨铸铁QT400-18AL的研究及应用 | |
| 引用本文： | 马敬仲,丁建中,尤其光,曾艺成.超低温高韧性球墨铸铁QT400-18AL的研究及应用[J].铸造,2012,61(8):856-861,864. |
| 作者姓名： | 马敬仲 丁建中 尤其光 曾艺成 |
| 作者单位： | 1. 北京第一机床厂,北京,101300 2. 常州华德机械有限公司,江苏常州,213234 3. 机械科学研究总院,北京,100044 |
| 摘 要： | 转向架轴箱为CRH300型高速列车核心部件,要求采用QT400-18AL(-40℃)球铁制造。在分析了生产这种球铁的技术难度及影响因素后,采用高纯生铁及综合技术措施研制成功全铁素体球铁转向架轴箱,其缺口冲击值分别为:20.8 J(20℃)、19.4 J(0℃)、19.2 J(-20℃)、16.8 J(-40℃)、13.6 J(-50℃),并首次给出这种铸铁的韧性、塑性转变曲线。 |
| 关 键 词： | 转向架轴箱 铁素体球墨铸铁 低温冲击值 高纯生铁 质量控制 |
Research and Application of 400-18AL Ferrite Ductile Iron with High Toughness at Low Temperature |
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| MA Jing-zhong , DING Jian-zhong , YOU Qi-guang , ZENG Yi-cheng.Research and Application of 400-18AL Ferrite Ductile Iron with High Toughness at Low Temperature[J].Foundry,2012,61(8):856-861,864. | |
| Authors: | MA Jing-zhong DING Jian-zhong YOU Qi-guang ZENG Yi-cheng |
| Affiliation: | 1.Beijing No.1 Machine Tool Plant,Beijing 101300,China;2.Changzhou Huade Machinery Co.,Ltd.,Changzhou 213234,Jiangsu,China;3.China Academy of Machinery Science & Technology,Beijing 100044,China) |
| Abstract: | The bogie bearing housing is one of the key parts for CRH300 high speed train,and is manufactured with QT400-18AL(-40 ℃) ferrite ductile iron.According to the demands of mechanical properties,high purity pig iron was used as metal charge.The foundry process,the chemical composition and microstructure are strictly controlled.The impact strength in different temperature are as follows:20.8 J(20 ℃),19.4 J(0 ℃),19.2 J(-20 ℃),16.8 J(-40 ℃),13.6 J(-50 ℃).The bogie bearing housing has been manufactured with this full ferrite ductile iron on batch production. |
| Keywords: | bogie bearing housing ferrite ductile iron low temperature impact value high purity pig iron quality control |
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