The process of aluminum powder nitrogen atomizing and classifying is a complex industrial process. It includes many physical and chemical reactions and some dynamics processes, and it has characteristics of strong nonlinear, strong coupling, large lag, uncertainty and so on. 铝粉氮气雾化和分级工艺过程是一个复杂的工业过程,包括很多物理变化、化学反应以及一些动力学过程,具有强烈的非线性、强耦合、大滞后和不确定性等特点。