PBX炸药共振声混合实验研究Ⅱ

通过共振声混合实验样机,对固含量为90%的PBX炸药进行了共振声混合的均匀性实验研究和机理分析,实验量级为300 g。实验结果表明,振动强度是影响PBX炸药混合的重要因素,振动强度过小或过大都不能实现被混物料内部的质量交换,并且在混合的不同阶段,由于物料性状不同,所需要的最佳振动强度也不同,90%固含量的PBX炸药所需的最佳振动强度在30~55左右,最佳混合方式是在一定范围内采用交变振动强度进行混合。

Experimental Study on Resonance Acoustic Mixing of PBX Explosive Ⅱ

Experimental study and mechanism analysis on the uniformity of resonance acoustic mixing(RAM) of PBX explosive with 90% solid mass fraction was conducted by RAM experimental prototype at a sample scale of 300 g. Experimental results show that the vibration intensity is an important factor determining the effectiveness of PBX explosive mixing, and a vibration intensity too higher or too lower will not enable the mass transfer in the mixed materials. Moreover, various optimal mixing intensity is needed due to the difference in mixing stage and in the properties of materials mixed. For PBX explosive with 90% solid mass fraction, the optimal vibration intensity is around 30-55. Alternate vibration intensity in a certain range is the optimal mixing strategy for highly solid content PBX explosive.