Acoustic resonance in-situ charging method suitable for pouring PBX

An acoustic resonance and charging technology, which is applied to explosives, explosives composite components, explosives processing equipment, etc., can solve the problems of inefficient process flow, on-site personnel, and difficulty in ensuring quality consistency, so as to improve charging efficiency and ensure consistent quality Sexuality and wide adaptability

Active Publication Date: 2022-06-07
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of mixing effect and safety of high-viscosity explosives by the kneader mixing process has always been the bottleneck that limits the further improvement of the solid content of explosives. The pouring process is restricted by the fluidity, leveling and proficiency of the operator, and it is difficult to ensure consistent quality. At the same time, the sub-process of kneading and pouring also brings low efficiency of process flow and high number of on-site personnel. The pouring process has become a bottleneck for improving the efficiency of pouring PBX charge

Method used

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  • Acoustic resonance in-situ charging method suitable for pouring PBX
  • Acoustic resonance in-situ charging method suitable for pouring PBX

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]According to the characteristics of the warhead shell, the capacity expansion design is carried out, and the capacity expansion part is firmly connected with the shell as a whole to load the raw materials. The RATED explosives are RDX 90g, the binder is pentaerythrityl acrolein resin 9.7g, the curing agent is DES 0.3g, the explosive formula composition is a total of 100g, and then the styrene 6g is called as a diluent. Explosive formulations and diluents are precisely weighed and placed in a housing, where the elemental explosive powder is placed on the bottom layer and the adhesive, curing agent and diluent are covered on the upper surface of the explosive powder. Fix the capacity-expanding housing on the surface of the acoustic resonance device and start the acoustic resonance device. Mix at a frequency of 30Hz, an acceleration of 30g, and a temperature (40~60)°C for 5min; Stop, scrape off the powder of explosives attached to the inner wall of the housing and the top cover...

Embodiment 2

[0024] According to the characteristics of the warhead shell, the capacity expansion design is carried out, and the capacity expansion part is firmly connected with the shell as a whole to load the raw materials. The RATED explosives were RDX 92g, the binder was pentaerythrityl acrolein resin 7.7g, the curing agent was DES 0.3g, the explosive formula composition totaled 100g, and then styrene 9g was called as a diluent. Explosive formulations and diluents are precisely weighed and placed in a housing, where the elemental explosive powder is placed on the bottom layer and the adhesive, curing agent and diluent are covered on the upper surface of the explosive powder. Fix the capacity-expanding housing on the surface of the acoustic resonance device and start the acoustic resonance device. Mix at a frequency of 30Hz, an acceleration of 30g, and a temperature (40~60)°C for 5min; Stop, scrape off the powder of explosives attached to the inner wall of the housing and the top cover; Pow...

Embodiment 3

[0026]According to the characteristics of the warhead shell, the capacity expansion design is carried out, and the capacity expansion part is firmly connected with the shell as a whole to load the raw materials. The RATED elemental explosives are RDX 65g, the metal burner is 5μm aluminum powder 25g, the adhesive is terminal hydroxy polybutadiene 5g, the group function additive is 4.46g, the curing agent is TDI 0.54g, and the explosive formula composition is a total of 100g. No diluent is required. The metal burner and adhesive are precisely weighed and placed in the housing, where the metal burner powder is placed on the bottom layer, the adhesive is covered on the upper surface of the metal incendiary agent powder, and the housing with the expanded capacity is fixed on the surface of the acoustic resonance equipment, and the acoustic resonance device is started. Mix at a frequency of 30Hz, an acceleration of 30g, and a temperature (40~60)°C for 3min. Stop, scrape off the explosiv...

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Abstract

The invention discloses an acoustic resonance in-situ charging method suitable for pouring PBX, which comprises the following steps: expanding the capacity of a warhead shell, adding an explosive and a binder into the warhead shell after the capacity is expanded, then adding a solvent for wetting, fixing the warhead shell filled with the material as a whole on an acoustic resonance table board, and finally, carrying out in-situ charging on the surface of the acoustic resonance table board. Acoustic resonance equipment is started, materials are sequentially subjected to the processes of wetting, pellet forming, pellet growing and shear thinning, after the materials are fully and evenly mixed, solvent in the materials is removed through vacuum treatment in a vibration state, a shell expansion part is removed through cutting a dead head after the acoustic resonance mixed charging process, and the charging piece filled completely is obtained. According to the method, an acoustic resonance technology is used for achieving in-situ charging forming in the shell while explosive mixing is achieved, the two working procedures of mixing and pouring can be replaced with one working procedure, and one-time mixing charging forming of the special-shaped warhead shell is achieved.

Description

Technical field [0001] The present invention belongs to the field of explosives manufacturing, specifically relates to a method suitable for pouring PBX acoustic resonance in situ charging. Background [0002] With the development of science and technology and the need for new weapons such as missiles, polymers as binders are more and more widely used in mixed explosives, made of poured polymer bonding explosives (PBX), which is a kind of mixed explosives based on polymer bonding system, the main components include elemental explosives, oxidants, metal incendiary agents, adhesives and functional auxiliaries, etc., is a high viscosity multi-component composite energy-containing material, widely used in the field of explosives, is the most important type of charge in the development of weapons and ammunition in the future, It is also an upgraded product for TNT-based melt-cast explosives. However, the poured PBX is not currently widely used in the batch charge of China's warhead, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B21/00
CPCC06B21/0033C06B21/0008
Inventor 汤滢兰昌义张津李尚斌
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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