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在水平粉尘爆轰管上分别对２μｍ、５μｍ和１３μｍ三种粒径的铝粉－空气混合物进行了弱点火条件下燃烧转爆轰的实验研究。实验分别考察了粉尘浓度、颗粒尺度及扬尘方法等因素对爆轰特性（如爆轰速度、最大压力等）的影响。结果表明，２μｍ球形铝粉最大爆轰压力达７．８ＭＰａ、稳态爆速达１．９５ｋｍ／ｓ；５μｍ铝粉亦有爆轰特征，但状态较弱；１３μｍ的铝粉达不到爆轰。混合物的浓度对爆轰参数有影响，并存在最优浓度，在此浓度下，爆轰参数取得最大值，而且最优浓度的值随粉尘颗粒直径增加而增大。扬尘方法对爆轰特性有影响，预混粉尘与激波卷扬粉尘对比实验表明，其压力与速度的典型差别分别高达３００％与７４％。
The experiment of detonation to detonation under weak ignition condition was carried out on the horizontal dust detonation tubes with aluminum powder-air mixture of 3μm, 2μm, 5μm and 13μm respectively. The effects of dust concentration, particle size and dusting method on detonation properties (such as detonation velocity and maximum pressure) were investigated experimentally. The results show that the maximum detonation pressure of 2μm spherical aluminum powder reaches 7.8MPa, and the steady state detonation velocity reaches 1.95km / s. The 5μm aluminum powder also has detonation characteristics, but the state is weak; the 13μm aluminum powder can not reach detonation. The concentration of the mixture has an impact on the detonation parameters, and there is an optimal concentration at which the detonation parameters reach the maximum, and the optimum concentration increases with the increase of the dust particle diameter. The dusting method has an impact on the detonation characteristics. The comparative experiments of premixed dust and shock-wound dust show that the typical differences in pressure and speed are as high as 300% and 74% respectively.