A High Temperature Resistant Coating Structure and Its Application on Rocket Launch Pad

A technology of high temperature resistance and coating, which is applied in the field of high temperature resistance and heat insulation protection, can solve the problems of heavy weight, thick thickness, and the inability of the launch platform to move, etc., to achieve lower back temperature, reduce thermal ablation and thermal shock, and good high temperature resistance Effect of gas flow scour performance

Active Publication Date: 2017-11-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Abstract
  • 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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  • A High Temperature Resistant Coating Structure and Its Application on Rocket Launch Pad
  • A High Temperature Resistant Coating Structure and Its Application on Rocket Launch Pad
  • A High Temperature Resistant Coating Structure and Its Application on Rocket Launch Pad

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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 launch platform. The high temperature resistant coating material of the invention is composed of two layers of materials, an organic bottom layer and an inorganic surface layer. Among them, the organic bottom layer is composed of epoxy resin, curing agent polyamide and toughening agent liquid rubber. The inorganic surface layer consists of mullite, cordierite, aluminate cement and silica fume. The high-temperature-resistant coating material of the invention has strong adhesion, can withstand the scouring of simulated rocket gas flow, the temperature of the metal back does not exceed 100°C, and the coating has good high-temperature gas-flow-resistant scouring performance and heat insulation 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 Patents(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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