摘要
压坯强度主要来自颗粒表面不规则的机械啮合,颗粒形状是影响压坯强度的最重要因素之一。原料对粉末颗粒形状具有非常大的影响。在采用仲钨酸铵一步还原法生产高压坯强度钨粉过程中,不同特性原料在相同工艺生产的情况下,压坯强度差异非常大。通过实验总结出了生产高压坯强度钨粉的仲钨酸铵特点。
The strength of tungsten powder compacts mainly results from particles of irregular surface for particle shape is one of the most important factors affecting strength of tungsten powder compacts. Ammonium paratungstate has great influence on the tungsten powder particle shape. The compact strength varies greatly under the same process and raw materials with different properties while producing high compact performance tungsten powder using ammonium paratungstate one step reduction. The features of ammonium paratungstate for producing high compact nerformance tungsten powder are summarized by the experiments.
出处
《中国钨业》
CAS
2013年第2期38-40,共3页
China Tungsten Industry
关键词
仲钨酸铵
压坯强度
粒度分布
形貌
ammonium paratungstate
compact performance
particle size distribution
particle morphology
