多孔药型B-KNO3点火药在点火发动机中的应用

摘要

According to the structure characteristics of medium ignition engine used for solid rocket motor,a method of using B-KNO3 ignition powder with porous grain configuration as the main charge of ignition engine is studied, which is aimed to increase burning area of the main charge and improve the packing fraction. Through the application ignition engine of rocket motor of some type air-to-ground missile, the porous B-KNO3 ignition powder is validated, which provide a new approach for the charge design of medium-sized igniting engine.%针对中型固体火箭发动机中点火发动机的结构特点，提出了采用多孔药型B-KNO3点火药作为点火发动机主装药，以增加装药燃面、提高装填系数。通过在某型空地导弹发动机用点火发动机的应用，验证了多孔药型B-KNO3点火药点火性能满足要求，为中型点火发动机的装药设计提供一种新途径。