Abstract This paper considers one of the current trends in powder metallurgy, the technology of forming powder–polymer mixtures by injection molding. For a powder–polymer mixture (feedstock) with a wax–polypropylene binder of the solution-thermal type of removal, the dependence of the PVT state parameters was studied by volume dilatometry. For each component of the polymer binder, the dependence of the phase transition temperature on pressure was determined. As a result of processing and analysis of PVT data for the feedstock of the type under study, we proposed a technological window of parameters that allow for injection molding of composite semifinished products with minimal volume shrinkage. Comparative analysis of the compactibility of feedstocks with a polymer binder of the catalytic and solution-thermal types of removal is carried out.

中文翻译：

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用蜡-聚丙烯粘合剂成型粉末-聚合物混合物时的比容和压实特性

摘要 本文考虑了粉末冶金的当前趋势之一，即通过注射成型形成粉末-聚合物混合物的技术。对于粉末-聚合物混合物（原料）和蜡-聚丙烯粘合剂的溶液-热去除类型，通过体积膨胀法研究了 PVT 状态参数的相关性。对于聚合物粘合剂的每个组分，确定了相变温度对压力的依赖性。作为对所研究类型原料的 PVT 数据的处理和分析的结果，我们提出了一个参数技术窗口，允许以最小的体积收缩注塑复合半成品。进行了具有催化和溶液热类型去除的聚合物粘合剂的原料的可压缩性的比较分析。