High-temperature-resistant coating structure and application thereof to rocket launching pad

A technology of high temperature resistance and coating, applied in the field of high temperature resistance and thermal insulation protection, can solve the problems of inability to move the launch pad, thick thickness, heavy weight, etc., achieve good high temperature resistance to gas flow scouring performance, reduce thermal ablation and thermal shock , the effect of reducing the back temperature

Active Publication Date: 2016-02-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Description
  • Claims
  • Application Information

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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 type of launch platform constructed of inorganic non-metallic materials has better gas purging and ablation resistance than organic ablation coatings, but the disadvantage is that it is thick. , heavy, and the launch pad cannot be moved

Method used

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  • High-temperature-resistant coating structure and application thereof to rocket launching pad
  • High-temperature-resistant coating structure and application thereof to rocket launching pad
  • High-temperature-resistant coating structure and application thereof to rocket launching pad

Examples

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Embodiment 1

[0018] Embodiment 1 Preparation of high temperature resistant coating for rocket launch pad

[0019] 1. Preparation of organic bottom layer: mix epoxy resin SM828, curing agent polyamide 650, and toughening agent liquid rubber according to the mass ratio of 7:2:1, and then coat the rust-removed 190×120×5mm steel plate On the side surfaces, the coating thickness was 3 mm.

[0020] 2. Preparation of inorganic surface layer: first mix mullite of 5-3mm and less than 3-1mm evenly according to the mass ratio of 1:1, and then mix the mixed mullite with cordierite, aluminate cement, silica The ash is mixed according to the mass ratio of 11:5:4:1. After mixing evenly, add water and stir for 3 minutes, and the amount of water added is 13% (mass fraction) of the surface layer ingredients. Before the organic bottom layer is fully cured, the surface layer material is coated on the bottom layer material. A surface layer with a thickness of 12 mm is coated on the bottom layer with a thick...

Embodiment 2

[0023] Embodiment 2 Preparation of high temperature resistant coating for rocket launch pad

[0024] 1. Preparation of organic bottom layer: mix epoxy resin SM828, curing agent polyamide 650, and toughening agent liquid rubber according to the mass ratio of 7:2:1, and then coat the rust-removed 190×120×5mm steel plate On the side surfaces, the coating thickness was 4 mm.

[0025] 2. Preparation of inorganic surface layer: first mix mullite of 5-3mm and less than 3-1mm evenly according to the mass ratio of 1:1, and then mix the mixed mullite with cordierite, aluminate cement, silica The ash is mixed according to the mass ratio of 11:5:4:1. After mixing evenly, add water and stir for 3 minutes, and the amount of water added is 13% (mass fraction) of the surface layer ingredients. Before the organic bottom layer is fully cured, the surface layer material is coated on the bottom layer material. A surface layer with a thickness of 16 mm is coated on the bottom layer with a thick...

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Abstract

The invention discloses a high-temperature-resistant coating material for a rocket launching pad. The high-temperature-resistant coating material comprises two material layers, namely an organic bottom layer and an inorganic surface layer, wherein the organic bottom layer comprises epoxy resin, the curing agent of polyamide, and the toughening agent of liquid rubber; the inorganic surface layer comprises mullite, dichroite, aluminate cement and silica ash. The high-temperature-resistant coating material is high in adhesive force, and can bear rocket simulation gas stream impact; the temperature of metal back is lower than 100 DEG C, and the coating has excellent high-temperature gas stream impact resistance and heat-insulating performance.

Description

technical field [0001] The invention relates to a high-temperature-resistant coating for a rocket launch pad and a preparation method thereof, in particular to a high-temperature-resistant coating for coating the surface of a rocket launch pad to reduce the back temperature of the launch pad and protect the steel structure surface of the rocket launch pad. It belongs to the field of high temperature resistance and heat insulation protection. Background technique [0002] With the development of aerospace and aerospace industry, high temperature resistant coatings have opened up new application fields. In addition to the thermal protection of 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 high-temperature resistant coatings, it can insulate the metal surface, reduce thermal ablation and thermal shock, and prevent thermal fatigue, thermal cracking and thermal frac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06
Inventor 张巍马磊王国鹏张涛平仕良赵海潘玉竹徐铮任晓伟吴梦强冯磊黎定仕
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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