仲钨酸按(APT)是生产钨粉、碳化 钨粉、钨丝等制品的主要原料,而钨制品的 质量很大程度上取决于APT的质量——化 学纯度、颗粒大小与粒度分布等。从国内各 生产厂家的APT质量标准来看,化学纯度 都相差无几,而粒度范围都较宽。目前,国 内外均以Fsss粒度作为APT产品粒度的典 型分析,并且国外用户根据最终制品的不 同,规定了APT较窄的粒度范围。因此, 为了满足不同用户的要求,笔者在生产过程 中对如何控制APT的粒度作了一些研究工 作。本文主要以数理统计的方法,对影响 Paratungstate (APT) is the main raw material for the production of tungsten powder, tungsten carbide powder, tungsten filament and other products, and the quality of tungsten products depends largely on the quality of APT - chemical purity, particle size and particle size distribution. APT from the domestic manufacturers of quality standards point of view, chemical purity are almost the same, but the wide range of particle size. At present, Fsss granularity is used as a typical analysis of APT product granularity at home and abroad, and foreign users specify a narrower particle size range of APT according to the final product. Therefore, in order to meet the requirements of different users, I made some research on how to control the granularity of APT in the production process. This article mainly mathematical statistics method, the impact