| 复压对铜石墨含油材料强度的影响 |
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| 引用本文： | 丁华东 浩宏奇. 复压对铜石墨含油材料强度的影响[J]. 兵器材料科学与工程, 1997, 20(5): 17-22,,52, |
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| 作者姓名： | 丁华东 浩宏奇 |
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| 作者单位： | 西安交通大学 |
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| 摘 要： | 研究铜石墨含油材料复压前后抗弯强度、弹性模量和密度的变化并分析其机理，从工艺上提出降低复压压力的方法。通过分析断口形貌指出，复压前后材料的断裂机制是不同的；通过复压可提高含油孔隙在全部孔隙中所占的比例，并可提高材料的弹性模量、抗弯强度和密度。
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| 关 键 词： | 自润滑材料 多孔材料 粉末冶金 复压 铜石墨材料 |
EFFECT OF REPRESSING ON STRENGTH OF COPPER-GRAPHITE OIL MATERIAL |
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| Abstract: | The effect of repressing on the bend strength, elastic modulus and density of this material as well as the mechanism was investigated, and the result showed the properties above were improved greatly by repressing, the ratio of oil content to the pore increased when repressing, and the repressing pressure could be reduced just by controlling the oil content infiltrated. SEM study showed the fracture morphology was different before and after repressing. |
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| Keywords: | self-lubrication material porous material repress copper-graphite material powder metallurgy |
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