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Device for measuring critical igniting pressure of booster explosive
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A measuring device and booster technology, which is applied in the experimental field of explosive performance parameters, can solve problems such as the lack of exact data on the critical ignition pressure, the lack of critical ignition criteria for booster, and the inability to obtain the critical ignition pressure of booster, etc.
Active Publication Date: 2018-02-02
XIAN MODERN CHEM RES INST
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Problems solved by technology
[0003] (1) The critical ignition pressure of the booster cannot be obtained;
[0004] (2) Lack of critical ignition criteria for boosters
[0005] The booster charge is a relatively sensitive part in the ammunition system, and its safety is particularly important. The current test method can only give the critical pressure or the thickness of the critical diaphragm that causes the explosion of the booster charge, and there is no definite definition for the more dangerous critical ignition pressure. data, it is necessary to design a new type of test device to accurately measure the critical ignition pressure of booster explosives under the action of shock waves
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Embodiment 1
[0026] Design the processing test device, carry out the impact ignition test, collect the explosive residue, judge the reaction form, and measure the critical ignition pressure of JH-14 booster.
[0027] The device includes a base 1, a cover plate 2, a fired shell 3, a main fired shell 4, a nut 5, a washer 6, a screw 7, a partition 8, a detonator seat 9, a main explosive 10, a fired explosive 11 and a detonator 12 , the overall design of the device is a flat coaxial structure, the base 1 is square, the height of the ring boss structure on its upper surface is 23mm, the ring boss separates the upper surface of the base 1, and on the base 1 A cylindrical groove is formed on the surface, and the diameter of the cylindrical groove is 67 mm. A U-shaped groove is respectively provided at the four corners of the base 1. The central axis of the U-shaped groove and the edge where it is located Vertical, the material of the base 1 is No. 20 mild steel, the cover plate 2 is a flat plate ...
Embodiment 2
[0036] Design the processing test device, carry out the impact ignition test, collect the explosive residues, judge the reaction form, measure A-IX-I (Type II Type 2 RDX 95%, mixed desensitizer 5%), press-fit, density 1.65g· cm -3 The critical ignition pressure of the booster charge.
[0037] The device includes a base 1, a cover plate 2, a fired shell 3, a main fired shell 4, a nut 5, a washer 6, a screw 7, a partition 8, a detonator seat 9, a main explosive 10, a fired explosive 11 and a detonator 12 , the overall design of the device is a flat coaxial structure, the base 1 is square, the height of the ring boss structure on its upper surface is 23mm, the ring boss separates the upper surface of the base 1, and on the base 1 A cylindrical groove is formed on the surface, and the diameter of the cylindrical groove is 67 mm. A U-shaped groove is respectively provided at the four corners of the base 1. The central axis of the U-shaped groove and the edge where it is located V...
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Abstract
The invention discloses a device for measuring the critical igniting pressure of a booster explosive. The problem of no reliable test devices for the weak shock igniting threshold of an explosive is solved in the invention. The basic principle of the device is characterized in that detonationwaves generated by the detonation of a donor explosive are attenuated by a separator plate and then act ona receptor explosive to initiate the reaction of the receptor explosive, and the reaction form of the receptor explosive is determined according to the depth of a pit formed in a pedestal and the deformation of a receptor shell. The device has the advantages of simplicity in assembling, feasible and highly-efficient test method, effective collection of unreacted explosive particles, comprehensiveevaluation of the reaction form of the receptor explosive through quantitative data and phenomenon observation, strong versatility, high accuracy, low cost, and provision of technical support for thedevelopment of novel secondary explosives.
Description
technical field [0001] The application belongs to the technical field of performance parameter experiments of explosives, and relates to a booster charge critical ignition pressure measuring device, which is mainly used to measure the critical ignition pressure of booster charges under the action of shock waves, and provides technical support for the development of new booster charges. Background technique [0002] The research on shock initiation of non-ideal explosives includes two aspects. For the purpose of reliable use, researchers hope to obtain the lowest shock wave pressure for reliable detonation of booster explosives, that is, the critical initiation pressure. For safety considerations, researchers hope to know The minimum pressure for accidental ignition of explosives is the critical ignition pressure. Obviously, the latter value is lower than or equal to the former. At present, our country has established the SSGT test method for booster explosive shock wave sens...
Claims
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