标准抛放弹装药技术研究

【作者】 周奎军；

【导师】 王泽山； 石文科；

【作者基本信息】 南京理工大学 ， 材料学， 2004， 硕士

【摘要】 本文介绍了标准抛放弹的装药结构，标准抛放弹用发射药的类型、药型、装药量及装填密度。对发射药的能量示性数进行了计算。通过不同发射药的比较，指出标准抛放弹用三种发射药为： 园片发射药：含有少量碳酸钙的高氮量单基药。 5／1发射药：经石墨光泽的含有少量DBP和安定剂DPA、Ⅱ号中定剂的高氮量单基药。 9／7发射药：以硝化棉为主体，添加硝基胍、DBP、Ⅰ号中定剂、碳酸钙等附加成份的高氮量单基药。 结合试验分析了标准抛放弹用三种发射药的化学安定性，燃烧性能，烧蚀性，相容性，感度，火药力，吸湿性，耐高低温冲击性能。 三种发射药各组分药剂之间均具有较好的相容性，与一般发射药相比具有较高的火药力，较低的烧蚀性；优良的耐高低温冲击性能。 通过对标准抛放弹点传火系统研究，指出点传火系统应利用渐进点火原理进行可靠点火设计，渐进点火的顺序为：点火药→园片过渡发射药→5／1过渡发射药→9／7主装发射药。 通过研究标准抛放弹的特点，指出发射装药应由三种发射药按一定比例自由混装而成，薄弧厚的园片过渡发射药和5／1过渡发射药依次点燃，最后燃烧大弧厚的七孔主装药。抛放弹的药型为圆片、单孔和七孔，弧厚依次增大，具有较好的渐增燃烧性。更多还原

【Abstract】 This paper describes the charge configuration of a typical cartridge, and the type, shape, charge weight and charge density of the propellant with which a typical cartridge is charged. The indicating value of the energy produced by the propellant has been calculated. By comparing different types of propellant with one another, the paper indicates that three types of propellant with which a typical cartridge is charged are as follows:Flake propellant: single base powder with high nitrogen and low calcium carbonate.5/1 propellant: graphitized single base powder with little DBP, stabilizer DPA and gelatinized stabilizer II, and high nitrogen.9/7 propellant: high-nitrogen single-base powder with nitrocellulose as main component, and nitroguanidine, DBP, gerlatinized stabilizer I, calcium carbonate and so on as additives.Through experimentation, the paper analyzes the chemical stability, burning quality, burn-through performance, compatibility, sensitivity, strength, moisture absorption, high-or low- temperature resistance of three types of propellant.The ingredients for each of three types of modified single base propellant are well compatible with one another. Compared with ordinary propellant, it has high strength, low burn-through performance and very good high- or low-temperature resistance.By studying the ignition and transmission system of a typical cartridge, the paper indicates that when the ignition and transmission system is designed, the step-by-step ignition principle should be used for reliable ignition design. The sequence of the step-by-step ignition is: ignition powder - flake intermediate powder 5/1 intermediate powder - 9/7 main-charge powder.By studying the characteristics of a typical cartridge, the paper indicates that the powder charge should be a mixture of three types of propellant in a given proportion. The small-arc thickness flake intermediate powder and 5/1 intermediate powder are fired in sequence and the big-arc thickness 7-hole main-charge powder is finally fired. Thepowder shape of a cartridge is flake, single-hole and seven-hole powder and the arc thickness is increased in sequence, thus being good at increasing combustibility step by step.更多还原