| 制芯压实力对覆膜砂砂芯性能的影响 |
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| 引用本文： | 谢卫东,刘方,彭晓东,李文山.制芯压实力对覆膜砂砂芯性能的影响[J].机械工程材料,2000,24(5):42-43,51. |
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| 作者姓名： | 谢卫东 刘方 彭晓东 李文山 |
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| 作者单位： | 重庆大学机械工程学院 重庆400044 |
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| 摘 要： | 系统测试了制芯压实力及镇砂预紧力实度对覆膜砂芯强度和密实度的影响。结果表明，在制芯过程中对覆膜砂施加一定的压实力及提高填砂预紧力实度均可提高砂芯的强度和密实度。应用此工艺可使覆膜砂型（芯）强度和密实度得以改善；也可在保证相同强度的前提下，使用低树脂含量和较粗的覆膜砂，以降低铸造生产成本并减小铸件气孔倾向。
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| 关 键 词： | 覆膜砂 砂芯强度 密实度 制芯压实力 铸造 |
The Influence of Pressure to Performances of Resin-Bonded Sand Cores |
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| Xie Weidong,Liu Fang,Peng Xiaodong,Li Wenshan.The Influence of Pressure to Performances of Resin-Bonded Sand Cores[J].Materials For Mechanical Engineering,2000,24(5):42-43,51. |
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| Authors: | Xie Weidong Liu Fang Peng Xiaodong Li Wenshan |
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| Abstract: | The influence of pressure to the tensile strength and density of resin-bonded sand core was measured and analyzed by the numbers. As a result, the tensile strength and density and surface quality of the sand core will be greatly improved for the pressure. |
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