| 改进型蜡基粘结剂的喂料流变性能 |
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| 引用本文： | 李笃信,黄伯云,曲选辉,李益民,唐嵘.改进型蜡基粘结剂的喂料流变性能[J].中南大学学报(自然科学版),2001,32(1):70-73. |
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| 作者姓名： | 李笃信 黄伯云 曲选辉 李益民 唐嵘 |
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| 作者单位： | 李笃信（中南大学粉末冶金国家重点实验室，湖南长沙
410083）
黄伯云（中南大学粉末冶金国家重点实验室，湖南长沙
410083）
曲选辉（中南大学粉末冶金国家重点实验室，湖南长沙
410083）
李益民（中南大学粉末冶金国家重点实验室，湖南长沙
410083）
唐嵘（中南大学粉末冶金国家重点实验室，湖南长沙
410083） |
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| 基金项目： | 国家“863”高技术计划资助项目(715-090-090) |
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| 摘 要： | 研究了改进型蜡基粘结剂体系和Fe-2Ni粉混合制备的喂料的流变性能.结果表明，喂料是一种假塑性流体，其非牛顿指数n较大，150℃时n为0.52，恒剪切速率粘流活化能△Eη=53.8Kj·mol
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| 关 键 词： | 金属注射成形 粘结剂 喂料 流变性能 |
| 文章编号： | 1005-9792(2001)01-0070-04 |
| 修稿时间： | 2000年3月20日 |
Rheological properties of
metal injection molding feedstock using the improved wax-based binder |
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| LI Du-xin,HUANG Bai-yun,QU Xuan-hui,LI Yi-min,TANG Rong.Rheological properties of
metal injection molding feedstock using the improved wax-based binder[J].Journal of Central South University:Science and Technology,2001,32(1):70-73. |
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| Authors: | LI Du-xin HUANG Bai-yun QU Xuan-hui LI Yi-min TANG Rong |
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| Abstract: | Metal injection molding (MIM) feedstock is a fully filled multiphase flow system, which exhibits complicated flow behaviour, and its rheological properties have significant influence on the MIM process. The rheological properties of MIM feedstock using the improved wax-based binder were studied in this paper. The results show that the feedstock exhibits good rhelogical properties. The feedstock possesses pseudo plasticity, the power law exponent and the activating energy for viscous flow were suitable for MIM. The content of oil and modifer in the binder had obvious influence on the rheological properties of feedstock. After adding oil, the viscosity, the pseudo plasticity, and the flow activation energy viscosity of feedstock decrease. Modifer increases the viscosity of feedstock and decreases the sensitivity of viscosity to temperature change. |
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| Keywords: | metal injection molding binder feedstock rhelogical properties |
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