High pressure gas impact-loading safety performance test method for energetic material

A high-pressure gas, safety performance technology, applied in the field of safety testing, can solve the problems of insufficient attention, complicated operation, lack of evaluation methods, etc., and achieve the effects of reliable testing data, good test repeatability, and wide application range.

Active Publication Date: 2018-02-02
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of production and use of energetic materials, there is often the danger of being ignited and detonated by high-pressure gas impact loading. , people have insufficient awareness of its dangers, insufficient attention, and lack of evaluation methods, and there is still a lack of relevant characterization techniques and testing methods for the safety performance of energetic materials in the process of being impacted by high-pressure gas
[0003] In the existing technology, to carry out the safety performance appraisal test of high-pressure gas impact loading, first of all, it must be able to provide normal temperature, clean and stable high-pressure gas. In the industry, air compressors are often used to achieve this. However, domestic air compressors cannot meet the test requirements for high-pressure gas. Pressure value requirements, large imported high-pressu...

Method used

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  • High pressure gas impact-loading safety performance test method for energetic material
  • High pressure gas impact-loading safety performance test method for energetic material
  • High pressure gas impact-loading safety performance test method for energetic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: The minimum burst gas pressure value test of Yu-2 liquid fuel.

[0017] Step 1, sample preparation.

[0018] For each test, accurately weigh 100㎎ of the fish-2 liquid fuel test sample (2), add it into a ceramic crucible and put it into the bottom of the sealed sample pool (1), and the low-temperature gas generating agent used in the test is stored in a water bath oven at 40°C before use. Dry for 4h.

[0019] Step two, condition selection.

[0020] In the condition selection process, the equipment conditions are: high-pressure gas generating device, high-pressure gas release device and gas pressure detection device. The high-pressure gas generating device uses a low-temperature gas generating agent⑽, which is a non-azide gas generating agent that can generate a large amount of gas when it is excited by the ignition electrode⑾ and burns rapidly in a closed combustion chamber⑼. Its chemical reaction is rapid and the effective gas production capacity Large, le...

Embodiment 2

[0029] Example 2: Gas pressure value test of 50% explosion probability of HTPE-103 polyether composite solid propellant.

[0030] Step 1, sample preparation.

[0031] HTPE-103 polyether composite solid propellant is made into φ10mm×3mm tablets for test sample ⑵, and each test is to place a piece of test sample ⑵ horizontally on the bottom of the sealed sample pool ⑴, and the low-temperature gas generating agent used in the test is Dry in a water-bath oven at 40°C for 4 hours before use.

[0032] Step two, condition selection.

[0033] In the condition selection process, the equipment conditions are: high-pressure gas generating device, high-pressure gas release device and gas pressure detection device. The high-pressure gas generating device uses a low-temperature gas generating agent⑽, which is a non-azide gas generating agent that can generate a large amount of gas when it is excited by the ignition electrode⑾ and burns rapidly in a closed combustion chamber⑼. Its chemical r...

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Abstract

The invention relates to a high pressure gas impact-loading safety performance test method for an energetic material in the field of technical detection of explosives and powders, a pyrotechnic composition and a solid-liquid propellant. The method comprises the following test steps: sample preparation, condition selection, detection implementation and data processing. During sample preparation, dosage of liquid and powder samples is 100 mg, and a solid sample is made into a tablet of phi 10 mm*3 mm. Selected equipment includes a high pressure gas generator, a high pressure gas release device and a gas pressure detector. According to the high pressure gas generator, a low-temperature gas generant is adopted for fast combustion so as to provide high pressure gas for the test. The maximum pressure deviation of gas generated by the testing device is +/- 0.25 Mpa. During detection implementation, gas pressure value of a tested sample with 50% explosive probability or the minimum explosive gas pressure value of the tested sample is measured. During data processing, critical explosive gas pressure value is calculated according to the mathematical statistics method. The invention has advantages of simple method, reliable data and good test reproducibility.

Description

technical field [0001] The invention relates to a safety detection technology in the process of production and use of explosives, pyrotechnics, solid-liquid propellants and other energetic materials, specifically a high-pressure gas impact loading safety performance for energetic materials testing method. Background technique [0002] In the process of production and use of energetic materials, there is often the risk of being ignited and detonated by high-pressure gas shock loading. , people have insufficient awareness of its dangers, insufficient attention, and lack of evaluation methods. The safety performance of energetic materials in the process of high-pressure gas shock loading is still lacking in relevant characterization techniques and testing methods. [0003] In the existing technology, to carry out the safety performance appraisal test of high-pressure gas impact loading, first of all, it must be able to provide clean and stable high-pressure gas at room tempera...

Claims

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Application Information

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IPC IPC(8): G01N33/22
CPCG01N33/22
Inventor 关红波李军苏晶程立国秦超邹敏兰慧田军徐波李朝阳吕样杨展
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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