Explosive detonation velocity test method

Abstract

An explosive detonation velocity test method accurately measures the explosive detonation velocity by using a detonating module, a time measurement module, a signal conversion device, a detonating component, a detonation transmission cap and detonating tubes. The explosive detonation velocity test method is characterized in that the detonating module, the time measurement module and the signal conversion device are sequentially connected with one another, and the detonating module denotes the first detonating tube and the second detonating tube simultaneously, wherein an explosive volume to be tested connects the second detonating tube and the third detonating tube through the detonating component and the detonation transmission cap; the time measurement module records time, and the explosive detonation velocity can be obtained according to the length of the explosive volume and a time difference. The explosive detonation velocity test method has the advantages that the operation is simple and convenient, the measurement accuracy is high, and the explosive detonation velocity test method is capable of being applied to measuring the detonation velocity at a construction site and making up for defects of an existing method.

Description

technical field [0001] The invention relates to a new test method, in particular to a test method for explosive detonation velocity. Background technique [0002] In order to meet the needs of social production and residents' life, our country is currently in the stage of great development of infrastructure construction, and industrial explosives have been widely used in various construction units. The problem of accurate measurement of explosive detonation velocity at the construction site needs to be solved urgently. [0003] At present, the determination methods for the detonation velocity of industrial explosives in the civil explosive industry mainly include high-speed photography, continuous oscilloscope method, tester method (electrical measurement method), Dawtry method (detonating cord method), and detonation method commonly used in construction sites. management method. [0004] The high-speed photography method and the continuous oscilloscope method have high pr...

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Problems solved by technology

[0004] The high-speed photography method and the continuous oscilloscope method have high precision, but the equipment is expensive, and they are mostly used for laboratory detonation velocity determination, which is not economical and practical

[0005] The electrical measurement method has high precision, but the operation is cumbersome, so it is not suitable for construction site use

[0006] The detonating cord method requires a lead plate with a thickness of 3-5mm, a width of 40mm, and a length of 400mm, which is not operable on site, and the lead plate may be blown away, resulting in test failure or even injury.

[0007] The nonel method to measure the detonation velocity of explosives is simple and highly operable on site. However, due to factors such as charge and production technology, the detonation velocity of the detonator cannot be equal to the standard detonation velocity of 1800m / s. The measured detonation velocity The error is about 10%, and the measurement accuracy is not high