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《Chinese Journal of Explosives & Propellants》 2009-01
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Anti-Aggregation Technology of the Superfine Powder of AP

DENG Guo-dong,LIU Hong-ying(National Special Superfine Powder Engineering Research Centreof Nanjing University of Science and Technology,Nanjing 210094,China)  
In order to solve the aggregation of the superfine power of AP,the aggregating mechanism of AP superfine powder was studied.The ways of coating AP raw material by NC and then the coated AP being crushed by jet mill were researched.The experimental results showed that the superfine powder of AP made by this way reduced its hydroscopicity highly and AP after stored for 30 days in the air,has no aggregation and its particle size is about 2.5μm.This superfine powder of AP has the same burning effect for propellant as AP superfine powder by just crushing.This way of coating AP by NC can prevent the superfine powder of AP from aggregating and can make it possible for the superfine powder of AP to be used for the propellant with high burning rate after its storage in the air.
【CateGory Index】: V512
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