【摘要】 为提高炸药的高能量和安全性能,对非TNT基高固含量熔铸炸药致密成型工艺进行研究。运用ANSYS软件建立熔铸炸药自然冷却温度场,构建装药壳体实体和有限元模型,对装药疵病的产生与防止进行分析。根据"组分体积形状尺寸匹配准则",运用振动、抽真空、保温冷却等工艺措施,实现高固含量熔铸炸药高致密成型。研究结果表明:该工艺使装药内部致密均匀,无气孔、缩孔、裂纹等疵病,可实现高固含量熔铸炸药高致密成型。更多还原

【Abstract】 In order to improve the energy performance and safety of the explosive, the molding process of melt-casting explosive based on non-TNT with high solid content and density was studied. The temperature field of melt-cast explosive under the condition of natural cooling was established with the ANSYS software though the construction model of the charge shell and finite element model and the analysis for generation and prevention of explosive charge flaws. The high density molding of melt-casting explosive with high solid content based on the matching criterion of the"component-volume-shape size" was realized by the application of some technological control measures such as vacuum,heat insulation and vibration. It was concluded that the quality of charge with no flaws such as stomata, shrinkage cavity and crack in the grain were achieved though the molding process mentioned in above, realizing the high density molding of melt-casting explosive with high solid content.更多还原