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Rubber type high-temperature metal particle generator

A metal particle and generating agent technology, applied in the production of compressed gas, explosives, attack equipment, etc., can solve the problems of equipment and facilities damage, not yet seen, etc., to achieve the effect of short production cycle, elimination of hidden dangers, and high reliability

Active Publication Date: 2019-01-18
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once an explosion occurs, it will cause damage to the equipment and facilities of the launch site, causing great economic losses and social impact
[0003] The current video data show that the Atlantis space shuttle and the Dragon spacecraft in the United States used high-temperature particles to ignite combustible gases before launch. The related technology has not been reported in the literature at home and abroad; the European Space Agency and Japan used an eternal flame to ignite combustible gases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high-temperature and high-speed metal particle generating agent, its formula composition (calculated by mass percentage) is as follows:

[0037] Binder: F rubber, 1%; butadiene rubber, 1%

[0038] Oxidant: AP, 20%; KP, 40%; where, d 50 The AP content of 298μm is 20%, d 50 The KP content of 288μm is 20%, d 50 The KP content of 55μm is 20%;

[0039] Fuel: magnesium aluminum alloy, 5%; Al powder, 15%; Ti powder, 10%;

[0040] Desensitizer: polyethylene wax, 2%;

[0041] Plasticizer: DOS, 0.5%;

[0042] Combustion temperature regulator: OMA: 4%;

[0043] Performance modifier: Fe 2 o 3 , 0.5%; GFP, 1.0%;

[0044] The performance of the generating agent is as follows:

[0045] Theoretical density: 2.277g / cm 3 ;

[0046] Compression performance: when the specific pressure is 220MPa, the density of the generator grain (Ф40mm) is 2.243g / cm 3

[0047] The temperature of the metal particles generated by the generating agent is 2150K;

[0048] The friction sensitiv...

Embodiment 2

[0050] Binder: acrylate rubber, 4%;

[0051] Oxidant: KP, 20%; barium nitrate, 25%; d 50 The KP content of 55μm is 15%, d 50 The KP content of 288μm is 5%, d 50 298 μm BaNO 3 The content is 20%;

[0052] Fuel: Al powder, 20%; silicon powder, 5%; nickel powder, 15%;

[0053] Desensitizer: polyethylene wax, 0.5%; graphite, 0.5%;

[0054] Plasticizer: DOS, 1%;

[0055] Combustion temperature regulator: DHG: 5%; ammonium oxalate, 3%;

[0056] Performance modifier: Fe 2 o 3 , 0.5%; zinc oxide (ZnO), 0.5%;

[0057] The performance of the generating agent is as follows:

[0058] Theoretical density: 2.310g / cm 3 ;

[0059] Compression performance: when the specific pressure is 200MPa, the density of the generator grain (Ф40mm) is 2.275g / cm 3 ;

[0060] The temperature of the metal particles generated by the generating agent is 1950K;

[0061] The friction sensitivity is 12%, and the impact sensitivity is 0.

Embodiment 3

[0063] Binder: F rubber, 4%; EPDM rubber, 2%;

[0064] Oxidant: AP, 10%; KP, 15%; Barium nitrate: 20%; d 50 The KP content of 55μm is 15%, d 50 AP content of 298μm is 10%, d 50 298 μm BaNO 3 The content is 20%;

[0065] Fuel: magnesium alloy, 21%; titanium powder, 14%;

[0066] Desensitizer: polypropylene wax, 1%; graphene, 1%;

[0067] Plasticizer: BDNPF / A, 1%

[0068] Combustion temperature regulator: DHG: 10%;

[0069] Performance modifier: Fe 2 o 3 , 0.5%; Cr 2 o 3 , 0.5%.

[0070] The performance of the generating agent is as follows:

[0071] Theoretical density: 2.463g / cm 3 ;

[0072] Compression performance: when the specific pressure is 160MPa, the density of the generator grain (Ф40mm) is 2.426g / cm 3 ;

[0073] The temperature of the metal particles generated by the generating agent is 1810K;

[0074] The friction sensitivity is 0%, and the impact sensitivity is 0.

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Abstract

A rubber type high-temperature metal particle generator is prepared from components in weight ratio as follows: 1%-6% of an adhesive, 45%-60% of an oxidizing agent, 30%-40% of fuel, 1%-4% of a desensitizing agent, 0%-2% of a plasticizer, 4%-10% of a burning temperature regulator and 0.5%-2% of a property modifier. The generator needs no curing crosslinking and has short production cycle and low cost. Compression molding property of the generator is good, room-temperature one-way compression is performed, and density of a generator grain is 98.5% (phi 40 mm) of the theoretical density when specific pressure is lower than 240 MPa. Metal particles generated by the generator are at the temperature of about 1800-2200 K and have density higher than 2.0 g / cm<3>, friction sensitivity lower than 20% and shock sensitivity of 0.

Description

technical field [0001] The invention relates to a rubber-type high-temperature metal particle generating agent, which belongs to the field of propellant formula development. Background technique [0002] Over the years, in the field of aerospace, cryogenic liquid propellants have been widely used in the United States, Russia and other countries. The fuels of liquid generators mainly include alcohols (methanol, ethanol and isopropanol, etc.), hydrazines (hydrazine, monomethyl Hydrazine, etc.), hydrocarbons (kerosene, methane, ethane, etc.) and hydrogen (liquid hydrogen), etc. Before the launch, a certain concentration of flammable gas will gather near the launch pad, and if it accumulates to a certain extent, there will be a possibility of explosion, which will become a source of danger during rocket launch. Once an explosion occurs, it will cause damage to the equipment and facilities of the launch site, bringing great economic losses and social impact. [0003] The curren...

Claims

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Application Information

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IPC IPC(8): C06B33/12C06B33/14C06D5/06
CPCC06B33/12C06B33/14C06D5/06
Inventor 王亚邓康清朱雯娟余小波向进王相宇王鹍鹏熊伟强杨育文田献林罗国芳姚卫东
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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