| 492QS射流燃烧室汽油机用活塞材质试验 |
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| 引用本文： | 姜镇崧,刘友均.492QS射流燃烧室汽油机用活塞材质试验[J].天津大学学报(自然科学与工程技术版),1998,31(6):815-821. |
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| 作者姓名： | 姜镇崧 刘友均 |
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| 作者单位： | 天津大学机械工程学院 |
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| 摘 要： | 讨论了用混合稀土对Ａｌ－Ｓｉ共晶合金的变质工艺，测定了合金的热抗拉强度、线膨胀系数和活塞的尺寸稳定性。结果表明：加入混合稀土１％后，ＺＬ１０８号合金铁热抗拉强度提高了２６％，线膨胀系数降低，活塞的尺寸稳定性增加。
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| 关 键 词： | 混合稀土 汽油机 铝硅共晶合金 燃烧室 活塞 |
EXPERIMENTAL INVESTIGATION ON PISTON MATERIAL USED IN THE 492 QS FLUIDIC COMBUSTOR GASOLINE ENGINE |
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| Jiang,Zhensong,Liu,Youjun,Li,Guicheng,Cai,Huimin,Fei,Yizhong.EXPERIMENTAL INVESTIGATION ON PISTON MATERIAL USED IN THE 492 QS FLUIDIC COMBUSTOR GASOLINE ENGINE[J].Journal of Tianjin University(Science and Technology),1998,31(6):815-821. |
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| Authors: | Jiang Zhensong Liu Youjun Li Guicheng Cai Huimin Fei Yizhong |
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| Abstract: | The modified operation with a mixer of RE on the Al Si eutectic alloy is discussed.The high temperature tensile strength,linear expansion coefficent and size steadiness of a piston are measured.The results show that when a 1% mixer of RE is added,the high temperature tensile strength of the alloy increases by a factor of 26%,the linear expansion coefficient of the alloy decreases and the size steadiness of the piston is enhanced. |
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| Keywords: | mixer of RE Al Si eutertic alloy modification |
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