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Standard substance for calibrating pressure of thermal explosion system

A standard substance, thermal explosion technology, applied in the direction of material explosiveness, can solve the problem of no unification, and achieve the effects of high pressure sensitivity, good stability and convenient use

Inactive Publication Date: 2015-08-19
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few studies on explosive standard materials used for calibration of thermal explosion temperature measurement systems at home and abroad, and there is no unified standard material at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] This embodiment is carried out with reference to the following mass percentage composition: 95% AP, 5% polytetrafluoroethylene.

[0012] Preparation of this example: Add 5 g of polytetrafluoroethylene into 50 ml of ethyl acetate and stir to obtain a suspension, which is ready for use. Add 95gAP to the suspension and mix, then stir at 60°C-65°C, vacuumize for 20min, lower to 40°C-45°C, pass the semi-dry slurry through an 8-mesh copper sieve, and discharge. Obtain the gunpowder particles coated with insensitivity, and cool down to room temperature naturally. The obtained granules were dried at room temperature for 8 hours, and discharged to obtain the standard drug of the present invention.

Embodiment 2

[0014] This embodiment is carried out with reference to the following mass percentage composition: 97% AP, 3% polytetrafluoroethylene.

[0015] The preparation method of this embodiment refers to embodiment 1.

Embodiment 3

[0017] This embodiment is carried out with reference to the following mass percentage composition: 98% AP, 2% polytetrafluoroethylene.

[0018] The preparation method of this embodiment refers to embodiment 1.

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Abstract

The invention discloses a standard substance for calibrating the pressure of a thermal explosion system, which is used for solving the problem that no uniform reference standard sample is provided for the thermal explosion pressure measuring system. The standard substance consists of ammonium perchlorate and polytetrafluoroethylene. The standard substance is good in stability, convenient to use, safe and reliable. The formula of a plurality of standard substances is determined by measuring the critical pressure of the thermal explosion of the standard substance chemical.

Description

technical field [0001] The invention belongs to the technical field of explosives, and relates to an explosive standard substance used for calibrating thermal explosion pressure measuring systems, which is used for calibrating the pressure systems of various thermal explosion measuring devices. Background technique [0002] The thermal explosion pressure measurement system is used to measure the critical pressure of self-accelerating decomposition, combustion and explosion of explosives and other energetic materials, to determine its high pressure resistance and the law of thermal explosion, and also to help study the thermal explosion process mechanism of explosives. Therefore, the pressure system of the system must have high accuracy. With the development of modern thermal explosion critical temperature testing technology, the test accuracy requirements for thermal explosion systems are constantly increasing. Therefore, the research on explosive reference materials for cal...

Claims

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Application Information

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IPC IPC(8): G01N25/54
Inventor 王晓峰封雪松冯晓军田轩徐洪涛赵娟冯博
Owner XIAN MODERN CHEM RES INST
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