Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A preparation method of active metal micro-projectiles loaded with high-energy explosives

A technology of active metal and high-energy explosives, which is applied in the field of damage and ammunition engineering, and energetic materials, can solve the problems of high pressure of ballistic calculation, low probability of successful interception, and difficulty in tracking, etc., and achieves improved power, stability, and explosion. powerful effect

Active Publication Date: 2021-03-09
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a hypersonic aircraft loaded with high-energy explosives to solve the problems of extremely fast flight speed, extremely difficult to capture, difficult to track, huge pressure for ballistic calculation and trajectory prediction calculation, and extremely low probability of successful interception. Method of preparation of the projectile

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A preparation method of active metal micro-projectiles loaded with high-energy explosives
  • A preparation method of active metal micro-projectiles loaded with high-energy explosives
  • A preparation method of active metal micro-projectiles loaded with high-energy explosives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of active metal microprojectiles loaded with high-energy explosives, the specific steps are as follows:

[0028] (1) Weighing and powder mixing: the mass ratio of each component is: active metal / heavy metal / fluoropolymer=magnesium-aluminum alloy / tungsten / polytetrafluoroethylene=30 / 15 / 55, that is, weigh 15g of magnesium-aluminum alloy powder , 7.5g of tungsten powder, 27.5g of PTFE powder, placed in a planetary mixer and mixed for 20min, and mixed well;

[0029] (2) Molding: place the above-mentioned uniformly mixed powder in a mold to compress, the pressure is 50MPa, the pressurization rate is 30N / s, the pressure holding time is 5min, the pressure relief rate is 30N / s, and the mold is released after the pressure relief to obtain the molded part A;

[0030] (3) Sintering: The molded part A after demolding was placed in a sintering furnace for sintering. An argon atmosphere was used during the sintering process. The sintering temperature was 370°C and...

Embodiment 2

[0035] A preparation method of active metal microprojectiles loaded with high-energy explosives, the specific steps are as follows:

[0036] (1) Weighing and powder mixing: 50g per sample each time, the mass ratio of each component is: active metal / heavy metal / fluoropolymer=aluminum / tungsten-zirconium alloy / polytetrafluoroethylene=25 / 20 / 55, namely Take 12.5g of aluminum powder, 10g of tungsten-zirconium alloy powder, and 27.5g of polytetrafluoroethylene powder, put it in a planetary mixer and mix for 20min, and mix well;

[0037] (2) Molding: place the above-mentioned uniformly mixed powder in a mold to compress, the pressure is 50MPa, the pressurization rate is 30N / s, the pressure holding time is 5min, the pressure relief rate is 30N / s, and the mold is released after the pressure relief to obtain the molded part A;

[0038] (3) Sintering: The molded part A after demolding was placed in a sintering furnace for sintering. An argon atmosphere was used during the sintering proces...

Embodiment 3

[0043] A preparation method of active metal microprojectiles loaded with high-energy explosives, the specific steps are as follows:

[0044] (1) Weighing and powder mixing: 50g per sample each time, the mass ratio of each component is: active metal / heavy metal / fluoropolymer=magnesium / tungsten / fluororubber=25 / 15 / 60, that is, weigh 12.5% ​​of magnesium powder g, 7.5g of tungsten powder, 30g of fluororubber powder, placed in a planetary mixer and mixed for 30min, and mixed uniformly;

[0045](2) Molding: put the above-mentioned uniformly mixed powder in a mold for compression, the pressure is 40MPa, the pressurization rate is 30N / s, the pressure holding time is 5min, the pressure release rate is 30N / s, and the mold is demoulded after the pressure release to obtain the molded part A;

[0046] (3) Sintering: Place the above-mentioned molded part A after demoulding in a sintering furnace for sintering. During the sintering process, an argon atmosphere is used. The sintering temperat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing active metal micro-projectiles loaded with high-energy explosives, and belongs to the fields of energetic materials, damage and ammunition engineering. The "active metal micro-projectiles loaded with high-energy explosive charge" made by the present invention combines the advantages of both active metal energetic materials and high-energy explosives: the "active metal micro-projectile cloud" is formed by using the projectile, and only a rough solution is required. Calculate the trajectory of the incoming missile, give the approximate flight trajectory, and then explode and distribute it on the trajectory or near the important target to be protected. For hypersonic aircraft, there is no need to capture or track, which reduces the pressure of ballistic calculation and trajectory prediction calculation, and improves the probability of interception. The outer shell of the micro-projectile is made of active metal and adhesive compound; the internal charge adopts the existing polymer bonded explosive or melt-casting mixed explosive, and the technology is mature. Generally speaking, the raw materials of micro-projectiles are easy to obtain, the process is simple, the cost is low, and it is convenient for large-scale preparation, so it is feasible.

Description

technical field [0001] The invention relates to a preparation method of active metal microprojectiles loaded with high-energy explosives, belonging to the fields of energetic materials, damage and ammunition engineering. Background technique [0002] The top speed of hypersonic vehicles can reach more than 25 times the speed of sound, which cannot be captured by conventional military radar technology. The emergence of hypersonic aircraft will greatly change the existing air defense and anti-missile technology pattern, and even make the existing air defense and anti-missile system completely ineffective, and some important targets will be completely exposed to enemy fire, subject to tactical and even strategic strikes . The traditional air defense and anti-missile technology focuses on tracking the target, calculating the ballistic trajectory, and predicting the rendezvous trajectory. However, the hypersonic vehicle flies extremely fast, the traditional interception technol...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F42B33/02B22F1/00B22F3/02B22F3/10C22C21/00C22C23/00
CPCF42B33/0214B22F3/02B22F3/1007C22C21/00C22C23/00B22F1/10
Inventor 吕席卷束庆海马仙龙赵帅石艳松陈树森金韶华施瑞吴启才
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com