气流粉碎硅粉在硅系延期药中的应用?

文章对气流粉碎硅粉、球磨硅粉和高纯硅粉进行性能对比。选择气流粉碎硅粉,研究其配方、粒度、混药时间等参数对延期药性能的影响。结果表明:气流粉碎硅粉纯度较高,粒度分布最集中,延期精度最高,可以较好地满足硅系延期药的要求;不同粒度的气流粉碎硅粉可以用于不同燃速的延期药;在快燃速硅系延期药中,不加三硫化二锑能显著提高产品的延期精度。

Application of Air Milling Silicon Powder in the Manufacture of Si-series Delay Composition

[ ABSTRACT] Performances of air milling silicon powder, ball milling silicon powder and high purity silica fume were analyzed. Air milling silicon powder was selected to examine the effect of its formulation, particle size and mixing time on the performances of delay composition. Experiment results indicate that, for air milling silicon powder, the purity is moderate, the size distribution is the most concentrated and the delay accuracy is the highest, which are better meet requirements of the manufacture of Si-series delay composition. Air milling silicon powder with different particle size can be used for Si-series delay composition of different burning rate. In the absence of antimony trisulfide the delay accuracy of the high-latency Si-series delay composition can be remarkably improved.