关键词: 光敏炸药, 精密喷涂, 喷雾沉积分布, 喷涂距离

Abstract: To enhance the precision of loading impact loads with light-initiated explosives, an investigation is conducted into the spray deposition distribution patterns of light-initiated explosives using a specially designed spray coating system. The relationships between spray deposition efficiency, width, areal density distribution, and spray distance are obtained at different spray distances (10 cm, 15 cm, and 20 cm). An equation describing the spray deposition distribution pattern of light-initiated explosives is fitted. Based on the spray distribution model and spray superposition principle, experimental studies on uniform spray coating on flat surfaces and synchronous detonation verification are carried out. The research results indicate that the spray distribution follows a pattern of higher concentration in the middle and lower on both sides. As the spray distance increases, the effective spray width gradually widens, while the deposition efficiency decreases. By rationally planning the spray coating path, uniform spray coating on flat surfaces can be achieved. The maximum deviation between the measured areal density of the light-initiated explosive coating and the design value is 3%. The maximum detonation difference time of the light-initiated explosives is 8.52 microseconds. This research lays a foundation for the future application of precise loading techniques for light-initiated explosives.

Key words: light-initiated explosive, high precision spraying, spray deposition distribution, spray distance