Production methods are changing day by day with the developing technology. Based on this idea, a new production logic and machine have been developed owing to polymer-supported powder injection molding (PIM). The ability of this newly designed machine ( new PIM) to mold metal or ceramic powders supported by polymer binders is discussed in this study. By taking advantage of the polymer properties such as fluidity and sticking, powders are molded with a specially developed machine with high gas pressure in certain sizes. In this study, in which many parameters are processed from feedstock (FS) production to molding; metals Mg/316L and ceramics SiC/SiO 2 powders have been used in different powder sizes and structures. In the new PIM process, polymers were included in four different recipes. Paraffin wax (PW), polyethylene glycol (PEG), polypropylene (PP), ethylene-vinyl acetate (EVA), poly-methyl methacrylate (PMMA) and low-density polyethylene (LDPE) have been employed in the FS with different combinations. From FS production to the molding stage; pressure, microstructure examination, weight loss, and density change features were investigated. The result indicated that the best FS and molding was obtained by the PEG+PMMA polymer composition formed with a spherical powder with a diameter below 40 µm. The compression force of the FS in this composition was observed at approximately 3.4k N values.

中文翻译：

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新设计的粉末注射成型系统中不同粉末和聚合物配方的适用性

随着技术的发展，生产方法正在日新月异。基于此思想，由于聚合物支持的粉末注射成型（PIM），已经开发了一种新的生产逻辑和机器。本研究讨论了这种新设计的机器（新的PIM）成型由聚合物粘合剂支撑的金属或陶瓷粉末的能力。通过利用诸如流动性和粘性之类的聚合物特性，可以使用专门开发的具有一定气压的高压气体压力机将粉末成型。在这项研究中，从原料（FS）的生产到成型，其中处理了许多参数；金属Mg / 316L和陶瓷SiC / SiO 2粉末已用于不同的粉末尺寸和结构。在新的PIM工艺中，聚合物被包含在四种不同的配方中。石蜡（PW），聚乙二醇（PEG），FS中使用了聚丙烯（PP），乙烯-乙酸乙烯酯（EVA），聚甲基丙烯酸甲酯（PMMA）和低密度聚乙烯（LDPE），它们具有不同的组合。从FS生产到成型阶段；研究了压力，微结构检查，重量减轻和密度变化的特征。结果表明，通过由直径小于40μm的球形粉末形成的PEG + PMMA聚合物组合物获得了最佳的FS和成型。观察到该组合物中FS的压缩力为约3.4k N值。和密度变化特征进行了调查。结果表明，通过由直径小于40μm的球形粉末形成的PEG + PMMA聚合物组合物获得了最佳的FS和成型。观察到该组合物中FS的压缩力为约3.4k N值。和密度变化特征进行了调查。结果表明，通过由直径小于40μm的球形粉末形成的PEG + PMMA聚合物组合物获得了最佳的FS和成型。观察到该组合物中FS的压缩力为约3.4k N值。