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采用密闭爆发器收集NEPE推进剂在3 MPa下的燃烧残渣,研究了主要组分对铝粉凝相燃烧残渣平均粒径的影响。结果表明,影响残渣粒径的主要因素大小关系为RDX/AP相对含量>AP粒径>铝粉粒径>硝酸酯含量。低的RDX/AP相对含量和细AP有利于降低残渣粒径,但使得燃速显著升高,调节铝粉粒径和硝酸酯含量,可在对燃速影响较小情况下改善铝粉燃烧效率。
The closed explosive was used to collect the combustion residue of NEPE propellant at 3 MPa. The effect of the main components on the average particle size of the aluminum oxide agglomerated combustion residue was studied. The results showed that the main factors influencing the size of the residue were the relative content of RDX / AP> AP particle size> aluminum particle size> nitrate content. The low relative content of RDX / AP and the fine AP are beneficial to reduce the particle size of residue, but the burning rate is increased obviously. Adjusting the particle size of aluminum powder and nitrate content can improve the combustion efficiency of aluminum powder with less influence on burning rate .