High-temperature environment stability testing method of initiating explosive material

A technology of ambient temperature and test method, which is applied in the field of pyrotechnics, can solve problems such as the physical properties of pyrotechnic agents and the judgment of environmental temperature stability of explosive performance, and achieve good versatility, guidance, and comprehensive analysis effects

Active Publication Date: 2013-05-08
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

This method can only judge the thermal stability of the chemical properties of the pyrotechnic agent from the perspective of thermal decomposition reaction, and cannot yet judge the environmental temperature stability of the physical properties and explosive properties of the pyrotechnic agent

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  • High-temperature environment stability testing method of initiating explosive material

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Before adopting the present invention to carry out the test, adopt the failure mode effect analysis (FMEA) method to initially analyze the failure modes and performance influencing factors of the pyrotechnic agent at the predicted ambient temperature, and focus on finding out the significant impact on the pyrotechnic agent, according to the analysis results, And the influencing factors that may lead to the failure of pyrotechnic devices or the decline of survivability form a fault tree to theoretically predict the weak links and failure modes of pyrotechnic agents at the predicted ambient temperature, and provide theoretical guidance for subsequent test analysis.

[0021] (1) Before the test, first sample the same batch of pyrotechnic agents, and repackage according to the test requirements, including sampling and repackaging of loose agents and simulated compact...

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Abstract

The invention discloses a high-temperature environment stability testing method of an initiating explosive material. According to the high-temperature environment stability testing method of the initiating explosive material, by adopting an optical microscope observation testing method, a scanning electron microscope testing method, a vacuum stability testing method, a flame sensitivity test blasting fuse method and a pressure-time curve testing method, physical, chemical and explosion states of the initiating explosive material before and after undergoing a high-temperature environment are tested and test results are compared for analysis, the high-temperature environment stability of the initiating explosive material is comprehensively analyzed and the environment temperature stability change of the initiating explosive material is analyzed more completely and accurately, and thus the high-temperature environment stability testing method is suitable for judgment of the high-temperature environment stability of various kinds of initiating explosive materials and has better generality and guidance. The high-temperature environment stability judging method is capable of quantitatively judging physical performance, chemical forms and explosion performance change of the initiating explosive material before and after undergoing any high-temperature environment and also capable of indirectly judging the stability of an initiating explosive device after undergoing a high-temperature environment.

Description

technical field [0001] The invention relates to a method for testing the stability of pyrotechnic agents, in particular to a method for testing the stability of the environment temperature of pyrotechnic agents. The temperature stability judgment belongs to the technical field of pyrotechnics. Background technique [0002] Pyrotechnic agent is a special energetic material for pyrotechnic devices. Its function is to accept the weak stimulation energy given by the transducing element of pyrotechnic devices, undergo a rapid chemical reaction, release combustion, deflagration or explosion energy, and unlock the pyrotechnic device. , separation, expansion, drive, cutting and other predetermined functions. Compared with other types of energetic materials, pyrotechnic agents are not only the most sensitive energetic materials in the explosive sequence, but also have unique characteristics of explosion and combustion. The ambient temperature stability of pyrotechnic agents refers ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N23/22G01N7/16G01N25/54
Inventor 叶耀坤严楠李新立丁锋柴洪友
Owner BEIJING INST OF SPACECRAFT SYST ENG
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