端面粘贴包覆火药界面粘结强度研究

包覆火药装药控制燃气生成速率，降低弹性温度系数，提高弹丸初速的效果部分来自于包覆层的作用，对预制包覆层端粘包覆火药，其包覆层的厚度，密度，强度等性能已根据弹道和装药表确控制，包覆层与基药的界面粘结度就决定了包覆层控制燃气生成速率的有效性和可靠性，它是检验端面粘贴包覆火药工艺质量的关键指标，本文采用落锤实实验检包覆火药的界面结强度，研究了粘结工艺条件对端面粘贴包覆火药界面粘结强度的影响，通过实验选择出了合适的粘结剂及粘结工艺条件，制备了界面粘结强度良好的端面粘贴包覆火药。

Study on the Interfacial Binding Strength of the End-surface-b inding Coated Propellant

The effect of the coated propellant charge controlling gas producing rate, lowing ballistic temperature coefficient and improving the muzzle velocity is partly came from the effect of the coating layer. To the coated propellant of grain end surface binding the prefabricated coating layer (GESBPCL), the properties of the coating layer such as thickness, density, strength, etc., have been controlled exactly according to the requirement of ballistic design and propellant charge design, and the effectiveness and reliability of the effect of the coating layer controlling the gas producing rate of charge rely on the interfacial binding strength (IBS) between the coating layer and base grain. Hence, the IBS of the GEBSPCL propellant was tested by the fall hammer test, and the influences of the binding technique conditions to the IBS of the GEBSPCL propellant was studied. The good adhesive and binding technique conditions were selected by the tests. The GEBSPCL propellant grains of high IBS was prepared.