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Flint clay based unshaped refractory material for rocket launching stand

A technology for rocket launch and refractory materials, which is applied in the field of coke-based amorphous refractory materials for rocket launch pads and amorphous refractory materials for rocket launch pads. It can solve the problems of heavy weight, inability to move the launch pad, and thick thickness. Achieve the effects of reducing porosity, good resistance to rocket plume gas flow erosion, and increasing bulk density

Active Publication Date: 2015-09-23
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In foreign countries, the Ariane rocket launch platform of the European Space Agency in Guyana, South America is a concrete launch platform. This kind of launch platform constructed entirely of inorganic non-metallic materials has better gas purging and ablation resistance than organic ablation coatings, but the disadvantage is the thickness. Thick, heavy, and the launch pad cannot be moved

Method used

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  • Flint clay based unshaped refractory material for rocket launching stand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] According to the weight ratio, take 30 parts of burnt gemstone with a particle size of 6-35M; 30 parts of burnt gemstone powder with a particle size of 100-325M; 15 parts of cordierite particles with a particle size of 0.5-1mm; high alumina cement, 20 parts ; Silica fume, 5 parts; Water, 18 parts (additional).

[0012] The preparation method is as follows: weighing various raw materials according to the above-mentioned weight ratio, firstly adding particles with a size of 0.5-1mm or more and mixing evenly, stirring in a mixer for 2-3 minutes, and then adding other powder materials and stirring for 10-15 minutes. Finally, add water and stir for 3-5 minutes.

[0013] The coke gem-based amorphous refractory materials for rocket launch pads prepared by adopting the above raw material weight ratio and production method, the main aggregate uses raw materials of different particle size grades, wherein the raw materials with larger particle sizes play the role of skeleton, and ...

Embodiment 2

[0015] According to the weight ratio, take 32 parts of burnt gemstone with a particle size of 6-35M; 32 parts of burnt gemstone powder with a particle size of 100-325M; 10 parts of cordierite particles with a particle size of 0.5-1mm; high alumina cement, 19 parts parts; silica fume, 7 parts; water, 17 parts (additional). The production process and effect are the same as above.

Embodiment 3

[0017] According to the weight ratio, take 28 parts of burnt gemstone with a particle size of 6-35M; 29 parts of burnt gemstone powder with a particle size of 100-325M; 17 parts of cordierite particles with a particle size of 0.5-1mm; high alumina cement, 22 parts parts; silica fume, 4 parts; water, 17.5 parts (additional). The production process and effect are the same as above.

[0018] The following table shows the physical properties of the coke gem-based monolithic refractory materials used in the rocket launch pads prepared in the above examples.

[0019]

[0020] The physical and chemical performance parameters in the table were measured according to the following standards:

[0021] Bulk density is measured according to YB / T5200-1993 dense refractory castable apparent porosity and bulk density test method;

[0022] The room temperature flexural strength is determined according to GB / T3001-2007 test method for room temperature flexural strength of refractory materi...

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Abstract

A flint clay based unshaped refractory material for rocket launching stand is mainly composed of aggregate, refractory fine powder, and high aluminum cement, and is prepared from the following raw materials in percentage by weight: 20 to 35% of flint clay with a particle size of 6-35 M, 20 to 35% of flint clay fine powder with a particle size not more than 100 M, 5 to 25% of cordierite with a particle size of 0-1 mm, 10 to 30% of high aluminum cement, and 2 to 10% of silica fume. The prepared flint clay based unshaped refractory material has the characteristics of good thermal shock resistant property, good weatherability, high strength, environment-friendliness, and energy saving, and can tolerate the flushing of tail flame gas flow of rocket.

Description

technical field [0001] The invention relates to an amorphous refractory material for a rocket launch pad, in particular to a coke gem-based amorphous refractory material for a rocket launch pad, which belongs to the field of high temperature resistance and heat insulation protection. Background technique [0002] With the development of spaceflight and aerospace industry, in addition to thermal protection for the aircraft itself, thermal protection measures have also been added to ground facilities such as rocket launch pads in China. If the launch pad is coated with thermal protective coatings, it can insulate the metal surface, reduce thermal ablation and thermal shock, and prevent the launch pad from thermal fatigue, thermal cracking and thermal fracture under multiple thermal shock loads, thereby ensuring The reliability of the launch pad works and prolongs the service life of the launch pad. In foreign countries, the Ariane rocket launch platform of the European Space ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 张巍马磊侯宝林王国鹏张涛
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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