| 挤压铸造条件下铝基复合材料铸造流动性研究 |
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| 引用本文： | 黄永攀,黄永根,李道火,黄伟. 挤压铸造条件下铝基复合材料铸造流动性研究[J]. 铸造技术, 2004, 25(8): 626-627,630 |
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| 作者姓名： | 黄永攀 黄永根 李道火 黄伟 |
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| 作者单位： | 1. 中科院安徽光学精密机械研究所,安徽,合肥,230031
2. 陕西省第十二建筑工程公司,陕西,咸阳,713000 |
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| 摘 要： | 研究SiCp/A356铝基复合材料在铸造压力、碳化硅含量、金属模温和铸件尺寸厚度(代表凝固冷却速率)等不同工艺参数下的铸造流动性.结果表明,随着SiC颗粒添加量的增加,铝基复合材料的流动性呈现降低的趋势.而随着铸造压力的升高,复合材料的流动性呈现显著增加的情况.但当压力超过10 MPa以上时,其流动性并未有显著增加,仅是微幅增加而已.其次,增加模具的温度也可以增加铝基复合材料的流动性,尤其对薄件(厚2 mm)更为明显.
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| 关 键 词： | 挤压铸造 铝基复合材料 流动性 |
| 文章编号： | 1000-8365(2004)08-0626-02 |
Influence on the Fluidity of SiCp/AI Composites by Squeezing Casting |
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| HUANG Yong-pan,HUANG Yong-gen,LI Dao-huo,HUANG Wei. Influence on the Fluidity of SiCp/AI Composites by Squeezing Casting[J]. Foundry Technology, 2004, 25(8): 626-627,630 |
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| Authors: | HUANG Yong-pan HUANG Yong-gen LI Dao-huo HUANG Wei |
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| Affiliation: | HUANG Yong-pan~1,HUANG Yong-gen~2,LI Dao-huo~1,HUANG Wei~1 |
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| Abstract: | The aim of this study was to investigate the influence of pressure process parameters, e.g., SiC_p content, metal mold temperature, squeezing pressure and casting thickness(representing cooling rate)on the fluidity of SiC_p/A356 Al-matrix composites. The experimental results indicate that the fluidity of SiC_p/A356 composites tend to increase with the increase of squeezing pressure. However, the pressure affecting on fluidity for SiC_p/A356.Above threshold limit value, the fluidity is not clearly increased. When the SiC_p content added is more than 5% for the SiC_p/A356 composite, the fluidity will decrease. In addition, the fluidity of composites is also increased with the increase of casting thickness for SiC_p/A356 composites (containing 2 mm casting). |
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| Keywords: | SiC |
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