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Testing method for gas production volume and gas production rate of electric fusehead

A technology of igniting powder and testing method, which is applied in fuzes, weapon accessories, offensive equipment, etc., can solve the problems of different burning speeds at ignition time and affect the delay accuracy of delay electric detonators, and achieve light weight, small friction and reduced quality Effect

Active Publication Date: 2017-04-05
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of gas produced during the ignition of the electric ignition powder and the rate of gas production will make the ignition time of the delay charge, the pressure of the combustion environment and the burning speed different, thus affecting the delay accuracy of the delay electric detonator

Method used

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  • Testing method for gas production volume and gas production rate of electric fusehead
  • Testing method for gas production volume and gas production rate of electric fusehead
  • Testing method for gas production volume and gas production rate of electric fusehead

Examples

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Embodiment 1

[0034] Reference figure 1 , The test tube 1 is a hollow transparent quartz tube with a length of 550mm, an inner diameter of 10mm, and a wall thickness of 1.50mm. There is a scale line with a range of 550mm on it, and the adjacent scale value is 1mm.

[0035] Reference figure 2 , Piston 2 has a circular bottom surface and a "concave" structure in the center longitudinal section. The material is colored high-strength quartz, the bottom diameter is 9.96mm, the thickness is 1mm, and the sidewall is 2mm long and 0.50mm thick. The color piston makes the piston movement state captured by the high-speed camera more clearly, which is beneficial to the improvement of measurement accuracy.

[0036] Reference image 3 , The fixed plug 4 has an outer diameter of 10mm, and the shaft is provided with a hole with a hole diameter of 8mm. Pass the wire 3 of the bridge wire type electric propellant head through the hole of the fixed plug 4 to the plastic plug of the electric propellant head and the ...

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Abstract

The invention provides a testing method for the gas production volume and the gas production rate of an electric fusehead. According to the testing method, the gas production volume and the gas production rate of the electric fusehead are expressed through the measurement of the volume of a gas product and the volume increase rate. The testing method comprises the steps that under the vacuum condition, a flyer in contact with the electric fusehead is designed, the movement path of the flyer in a test tube in the ignition process of the electric fusehead is shot through a high-speed camera, the movement path is simplified into a physical model, relevant data of the movement model of the flyer are processed by the adoption of mathematic means, and then the gas production volume and the gas production rate of the electric fusehead and the dynamic change of the gas production volume and the gas production rate are obtained. The testing method for the gas production volume and the gas production rate of the electric fusehead solves the problem of dynamic measurement of the gas production volume and the gas production rate of the electric fusehead, a reliable theoretical basis is provided, operation is convenient, and the measurement result is accurate.

Description

Technical field [0001] The invention relates to the testing technology of pyrotechnic devices, in particular to the testing of the gas production volume and gas production rate of an electric propellant tip. Background technique [0002] The commonly used delayed electric detonator, the ignition method of the delayed charge is that the electric propellant tip is heated and burned to ignite. At present, the commonly used electric propellant heads in our country are mostly bridge wire type and steel sheet type, and a certain amount of ignition powder is coated on it. After power on, the bridge wire or steel sheet heats up to ignite the ignition powder and provide initial energy for the delayed charge. The amount of gas generated during the ignition process of the electric propellant and the rate of gas generation will cause the ignition time, combustion environment pressure and combustion speed of the delayed charge to be different, thereby affecting the delay accuracy of the delay...

Claims

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Application Information

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IPC IPC(8): F42C21/00
CPCF42C21/00
Inventor 朱帅刘锋张涵吴红波杜明燃黄文尧
Owner ANHUI UNIV OF SCI & TECH
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