Metal surface high-temperature-resistant coating structure and applications thereof

A technology of high temperature resistance and coating, applied in coatings, layered products, epoxy coatings, etc., can solve the problems of no relevant reports on the launch pad, inability to move the launch pad, heavy weight, etc., and achieve good heat insulation Performance, back temperature reduction, effect of reducing thermal ablation and thermal shock

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

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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
[0003] The rocket launch pad can be thermally protected by using special high-temperature-resistant coating materials and structures, but at present, there are no relevant reports on the technology for thermal protection of the launch pad

Method used

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  • Metal surface high-temperature-resistant coating structure and applications thereof
  • Metal surface high-temperature-resistant coating structure and applications thereof
  • Metal surface high-temperature-resistant coating structure and applications thereof

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Embodiment 1

[0018] The preparation of embodiment 1 high temperature resistant coating structure

[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 2 mm.

[0020] 2. Preparation of inorganic surface layer: firstly, mix 6-35M and 100-325M burnt gemstones evenly according to the mass ratio of 1:1, and then mix the mixed burnt gemstones with cordierite, aluminate cement and silica fume according to the mass ratio Mixed ratio 12:3:4:1. After mixing evenly, add water and stir for 3 minutes. The amount of water added is 16% (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 8 mm is coated on the bottom layer with a thickness...

Embodiment 2

[0024] Preparation of high temperature resistant coating structure

[0025] 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.

[0026] 2. Preparation of inorganic surface layer: firstly, mix 6-35M and 100-325M burnt gemstones evenly according to the mass ratio of 1:1, and then mix the mixed burnt gemstones with cordierite, aluminate cement and silica fume according to the mass ratio Mixed ratio 12:3:4:1. After mixing evenly, add water and stir for 3 minutes. The amount of water added is 16% (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 11 mm is coated on the bottom layer with a thickness of 4 mm to prep...

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Abstract

The invention discloses a metal surface high-temperature-resistant coating structure and applications thereof. The high-temperature-resistant coating material is composed of two layers namely an organic bottom layer and an inorganic surface layer; wherein the organic bottom layer is composed of epoxy resin, a polyamide curing agent, and a toughening agent (liquid rubber); and the inorganic surface layer is composed of flint clay, cordierite, aluminate cement and silica fume. The adhesion force of the provided high-temperature-resistant coating material is strong, which can sustain the washing of rocket imitated combustion-gas stream. The metal backside temperature does not exceed 120 DEG C, and the coating has an excellent performance on resisting high-temperature combustion-gas stream brushing and thermal insulation property.

Description

technical field [0001] The invention relates to a high-temperature-resistant coating structure on a metal surface, in particular to a high-temperature-resistant coating structure for coating the surface of a rocket launcher to reduce the back temperature of the launcher and protect the surface of the steel structure of the rocket launcher and its application , belonging to the field of high temperature 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 fracture of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B32B27/06B32B13/12C09D163/00C09D7/12
Inventor 张巍马磊王国鹏臧红张涛
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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