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首页> 外文期刊>Journal of nano research >Characterization of Fabricated Feedstock Using Nano powders and a Water-soluble Binder in Micro Metal Injection Molding
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Characterization of Fabricated Feedstock Using Nano powders and a Water-soluble Binder in Micro Metal Injection Molding

机译：微金属注射成型中使用纳米粉和水溶性粘合剂的加工原料的表征

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摘要

Micro metal injection molding has become the promising method in powder metallurgy research in order to fabricate small-scale intricate parts in an influential process and competitive cost of mass production. Stainless steel 316 L powders with powder size of 150 nm and 5 um were mixed with a binder with a water soluble component which consisted of a major fraction of water soluble Polyethylene Glycol (PEG), a minor fraction of polymethyl-methacrylate (PMMA) and some stearic acid has been used as a surfactant. This work aims to investigate the rheological properties of a feedstock which are efficiently characterised by capillary Rheometry to measure apparent viscosities at different temperatures and shear rates. Results obtained by the varying feedstock characteristics, when viscosity decreases by increasing of shear rate at certain temperature feedstock should have a pseudoplastic behaviour. Melt viscosity of the feedstock was decreased by adding Nano-scale powders. The reduced (n) values at high temperature with addition of nanoparticles indicated a possible increase in the shear-thinning behavior.
机译：微金属注射成型已成为粉末冶金研究中有希望的方法，以便以有影响力的工艺和具有竞争力的批量生产成本来制造小规模的复杂零件。将粉末尺寸为150 nm和5 um的316 L不锈钢粉末与具有水溶性成分的粘合剂混合，该粘合剂由主要成分的水溶性聚乙二醇（PEG），次要成分的聚甲基丙烯酸甲酯（PMMA）和一些硬脂酸已被用作表面活性剂。这项工作旨在研究原料的流变特性，该特性可以通过毛细管流变仪有效地表征，以测量在不同温度和剪切速率下的表观粘度。通过改变原料特性而获得的结果，当在一定温度下通过增加剪切速率使粘度降低时，原料应具有假塑性行为。通过添加纳米级粉末降低了原料的熔体粘度。添加纳米颗粒在高温下降低的（n）值表明剪切稀化行为可能增加。

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  • 来源
    《Journal of nano research》 |2013年第2013期|36-42|共7页
  • 作者

    Javad Rajabi; Norhamidi Muhamad; Abu Bakar Sulong; Hasyimah Aziz; Abdolali Fayyaz; Hafizawati Zakaria;

  • 作者单位

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;

    Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,School of Mechatronic Engineering, Universiti Malaysia Perlis, Kampus Ulu Tetap Pauh, Jalan ArauChanglun, 02600 Arau, Perlis, Malaysia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Micro metal injection molding; Water-soluble binder; Nano powder; viscosity;

    机译：微金属注射成型;水溶性粘合剂;纳米粉;黏度;

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