Complex cutting seam cartridge and general cartridge blasting study
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Abstract:
Through similar simulation studying, by using micro-and macro-observation method, analyzing the blasting effect of complex slotted cartridge and conventional slotted cartridge, obtain compound slotted cartridge better directional blasting effect and higher energy efficiency, and less damage to the surrounding rock, more suitable for smooth wall blasting.Keywords:
Cartridge
Cartridge
Residue (chemistry)
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Mechanism of blasting effect is specified,and mechanism of directional breaking controlled blasting effect of cutting seam cartridge is analyzed and discussed and dynamic strain for dandification of rock is tested and analyzed.
Cartridge
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The Accelerator® cartridge is unique in that the bullet has no barrel markings after it is fired. The plastic sabot does have barrel markings and can produce distinctive wound patterns. The .30-′06 Accelerator cartridge was fired into poster board, gelatin blocks, and pigs. The results of these studies are presented.
Cartridge
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A nozzle plate cartridge for the extraction section and a mixed plate cartridge containing both stainless steel and fluorothene sieve plates for the scrub section were developed. In 3- and 4-in.-diameter glass columns, these cartridges have a urnnium-extraction efficiency as good as, or better than, the present cartridge; they have a scrubbing efficiency, based on the transfer of chloride ion, which is about the same as the present cartridge. (auth)
Cartridge
Data scrubbing
Sieve (category theory)
Inert
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Aluminum cartridge case has long been considered as the alternative material for brass cartridge. It can efficiently reduce the weight carried by soldiers, help soldiers carry more ammunition with the same cartridge case, and thus improve the combat effectiveness. However, Aluminum cartridge case can be broken off during the course of use, which is a common phenomenon. By using the finite-element method, the paper is intended to analyze the effects on the deformation of cartridge case, the position and magnitude of maximum strain with the headspace variation law ;the maximum headspace of aluminum cartridge; the simulation result that maximum headspace indeed causes break is also verified by the firing experiment.
Cartridge
Ammunition
Brass
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In order to improve cartridge valve response speed,Working principle of cartridge valve is introduced,and the model of cartridge valve is simulated by AMESim software,drawing conclusions to improve cartridge valve response speed.The results show that stroke of main cartridge valve and the damping between main cartridge calve and pilot-operated valve effect hard to dynamic properties of cartridge valve;and closure time of main cartridge valve has been shorten from 0.341 s to 0.087 s,the effect of optimization is evidential,and have some guidance to improve response speed of cartridge valve.
Cartridge
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Through similar simulation studying, by using micro-and macro-observation method, analyzing the blasting effect of complex slotted cartridge and conventional slotted cartridge, obtain compound slotted cartridge better directional blasting effect and higher energy efficiency, and less damage to the surrounding rock, more suitable for smooth wall blasting.
Cartridge
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