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

Propellant with high energy and low temperature sensitive coefficient of burning

A technology of temperature sensitivity coefficient and propellant, which is applied to explosives and other directions to achieve the effect of increasing the range

Active Publication Date: 2015-12-09
HUBEI INST OF AEROSPACE CHEMOTECH
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high-energy propellant currently developed has a high energy level, the temperature sensitivity coefficient of the burning rate is generally 0.35%K -1 The above cannot meet the complex ambient temperature requirements of tactical weapon models

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
  • Propellant with high energy and low temperature sensitive coefficient of burning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Propellant composition

[0034] components gaps TEGDN AP HMX Al Content (%wt) 13.5 10 15 50 10 components TPB MNA BAG-78C LM-100 TDI Content (%wt) 0.1 0.3 0.3 0.5 0.3

[0035] (2) Propellant performance

[0036] Measured specific impulse: 2451N.s / kg (6.86MPa, measured specific impulse efficiency 0.944)

[0037] Density: 1.76g / cm 3

[0038] Burning rate temperature sensitivity coefficient: 0.13%K -1 (-30°C~40°C).

Embodiment 2

[0040] (1) Propellant composition

[0041] components gaps TEGDN AP HMX Al Content (%wt) 12 12 18 38 18 components TPB MNA BAG-78C LM-100

Content (%wt) 0.1 0.2 0.4 1.3

[0042] (2) Propellant performance

[0043] Measured specific impulse: 2480N.s / kg (6.86MPa, measured specific impulse efficiency 0.938)

[0044] Density: 1.79g / cm 3

[0045] Burning rate temperature sensitivity coefficient: 0.15%K -1 (-30°C~40°C).

Embodiment 3

[0047] (1) Propellant composition

[0048] components gaps TEGDN AP HMX Al Content (%wt) 13 13 16 42.3 14 components TPB MNA BAG-78C LM-100

Content (%wt) 0.1 0.3 0.4 0.9

[0049] (2) Propellant performance

[0050] Measured specific impulse: 2474N.s / kg (6.86MPa, measured specific impulse efficiency 0.940)

[0051] Density: 1.77g / cm 3

[0052] Burning rate temperature sensitivity coefficient: 0.14%K -1 (-30°C~40°C).

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
Densityaaaaaaaaaa
Login to View More

Abstract

A propellant with high energy and low temperature sensitive coefficient of burning comprises 12-15% of an adhesive, 10-13% of a plasticizer, 15-18% of an oxidant, 38-50% of an energetic explosive, 10-18% of a metal fuel and 1.5-2.0% of a small group, wherein the adhesive is glycidyl azide polymer; the plasticizer is triethylene glycol dinitrate or 2,4-dinitro-2,4-diazaalkane; the oxidant is ammonium perchlorate; the energetic explosive is octogen; and the metal fuel is aluminum powder. The propellant has the characteristics of high energy (standard measured specific impulse is greater than 2450N.s / kg) and low temperature sensitive coefficient of burning (not greater than 0.15%K<-1>), and is suitable for tactical missile engines with far required range, strong penetration ability, high reliability and accurate guidance.

Description

technical field [0001] The invention relates to a GAP high-energy low-burning-velocity temperature-sensitivity coefficient propellant suitable for tactical missiles requiring long firing range, strong penetration capability, high reliability and precise guidance. Background technique [0002] The temperature sensitivity coefficient of burning rate is one of the very important performance indicators of solid propellants, which characterizes the influence of changes in the initial temperature of the propellant on the burning rate or the pressure of the combustion chamber. Under certain pressure conditions, the relative change in burning rate caused by a change in propellant temperature of 1K within a certain initial temperature range is expressed as: [0003] [0004] The development and progress of military technology has put forward higher requirements for the performance of missile weapons. The information revolution urgently needs to improve the long-distance precision ...

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
IPC IPC(8): C06B33/06
Inventor 徐海元唐根周立罗传志倪凤翔冯勇吴芳包玺李伟徐星星王伟
Owner HUBEI INST OF AEROSPACE CHEMOTECH
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