| 电磁振动对金属粉末注射型坯结构均匀性的影响 |
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| 引用本文： | 何亮,刘斌,瞿金平.电磁振动对金属粉末注射型坯结构均匀性的影响[J].广东轻工职业技术学院学报,2006,5(1):1-5. |
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| 作者姓名： | 何亮 刘斌 瞿金平 |
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| 作者单位： | 1. 广东轻工职业技术学院,轻化工程系,广东,广州,510300
2. 华南理工大学,聚合物新型成型装备国家工程研究中心,广东,广州,510640 |
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| 摘 要： | 把电磁振动技术引入到金属粉末注射成型中，在一定的工艺条件下，逐步调节振动频率和振幅，制备出不同振动条件的注射型坯，并通过SEM等实验手段对型坯的物料分散状态和微观结构进行研究，以探讨振动频率和振幅对型坯微观结构的影响。结果表明：施加振动后，型坯微观结构均散程度大大提高，且随着振动频率或振幅的不断增大，均散程度逐渐达到最好后，均匀和完善程度有所降低，但仍然好于稳态成型时的状态。
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| 关 键 词： | 电磁振动 金属粉末注射 微观结构 电镜扫描 |
| 文章编号： | 1672-1950（2006）01-0001-05 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2005年12月30 |
The Influence of Electromagnetic Vibration in MIM on Green Part's Density |
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| HE Liang,LIU Bin,QU Jinping.The Influence of Electromagnetic Vibration in MIM on Green Part''''s Density[J].Journal of Guangdong Industry Technical College,2006,5(1):1-5. |
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| Authors: | HE Liang LIU Bin QU Jinping |
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| Institution: | 1. Chemical Engineering Department, Guangdong Industry Technical College, Guangzhou 510300, China ; 2. The National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou 510640 , China |
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| Abstract: | In this paper, electromagnetic dynamic injection molding machine is adopted in Metal Powder Injection Molding ( MIM) , and these green parts' microstructures are tested to explore the influence of vibration frequency and amplitude on the microstructure of products. The results show that the perfection degree of microstructure can be improved after electromagnetic vibration is pressed on injection. Under the continuous increase of vibration frequency or amplitude about a given amplitude or frequency respectively, the test samples' perfection degrees can reach to the most. After that, the degree will appear a slow-drop tendency. |
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| Keywords: | electromagnetic vibration metal powder injection molding (MIM) microstructure SEM |
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