| 金属粉末注射成形喂料在振动力场下的流变行为 |
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| 引用本文： | 潘映雪,瞿金平,晋刚,王权.金属粉末注射成形喂料在振动力场下的流变行为[J].粉末冶金工业,2006,16(4):5-9. |
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| 作者姓名： | 潘映雪 瞿金平 晋刚 王权 |
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| 作者单位： | 华南理工大学聚合物新型成型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室,广东,广州,510641 |
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| 基金项目： | 高比容电子铝箔的研究开发与应用项目;国家高技术研究发展计划(863计划) |
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| 摘 要： | 脉动压力诱导金属注射成形技术将振动力场引入到金属粉末注射成形全过程中,振动力场对金属粉末喂料熔体的流变行为产生影响,从而提高注射型坯的质量。本研究采用毛细管脉动流变仪对石蜡-油-聚丙烯粘结剂体系的316L不锈钢粉末喂料动态流变行为进行测量和表征,并分析了振动频率和振幅对喂料的平均动态表观黏度的影响。结果表明振动力场的引入能改善喂料的流动性能,与相应的稳态条件相比,喂料的表观黏度显著下降。
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| 关 键 词： | 振动力场 金属粉末注射喂料 流变行为 |
| 文章编号： | 1006-6543(2006)04-0005-05 |
| 修稿时间： | 2006年3月2日 |
THE RHEOLOGICAL BEHAVIOR OF METAL POWDER INJECTION MOLDING FEEDSTOCK UNDER THE VIBRATION FORCE FIELD |
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| PAN Ying-xue,QU Jin-ping,JIN Gang,WANG Quan.THE RHEOLOGICAL BEHAVIOR OF METAL POWDER INJECTION MOLDING FEEDSTOCK UNDER THE VIBRATION FORCE FIELD[J].Powder Metallurgy Industry,2006,16(4):5-9. |
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| Authors: | PAN Ying-xue QU Jin-ping JIN Gang WANG Quan |
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| Abstract: | Metal dynamic injection molding is a novel metal injection molding process carrying out in vibration force field.The vibration force field effects on the rheological behavior of feedstock and improves the properties of green parts.The rheological property of injection molding feedstock made of 316L stainless steel powders and wax-oil-Polypropylene binder was evaluated using self-made capillary dynamic rheometer,and the effects of vibration frequency and amplitude on the average dynamic apparent viscosity of feedstock were described and analyzed.The results showed that the flowability of the feedstock is improved in vibration force field.Compared with the steady condition,the apparent viscosity of the feedstock is decreased remarkably. |
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| Keywords: | vibration force field metal powder injection molding feedstock rheological behavior |
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