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Structure of thermal protective coating material for metal surface and use thereof

A technology for coating materials and metal surfaces, which is applied to the structure of thermal protective coating materials and the structure of thermal protective coating materials for metal surfaces, which can solve the problems of inability to move the launch pad, thick thickness, and heavy weight.

Inactive Publication Date: 2017-08-22
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 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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  • Structure of thermal protective coating material for metal surface and use thereof
  • Structure of thermal protective coating material for metal surface and use thereof
  • Structure of thermal protective coating material for metal surface and use thereof

Examples

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Embodiment 1

[0029] The preparation of embodiment 1 thermal protection coating material

[0030] 1. Preparation of organic bottom layer: mix epoxy resin SM828, curing agent polyamide 650, and toughening agent liquid rubber according to the ratio of 7:2:1, and then coat it on the 190×120×5mm surface after removing rust and paint. On the steel plate, the coating thickness is 2mm.

[0031] 2. Preparation of the middle layer of refractory lightweight aggregate: Evenly spread and paste refractory lightweight aggregate of 6-35 mesh on the organic bottom layer, the mass ratio of the refractory lightweight aggregate to the organic bottom layer is 1:0.3.

[0032] 3. Preparation of the inorganic surface layer: firstly mix the filler sand and cement uniformly according to the mass ratio of 2:1, and then add to the mixed solution of water glass (M=3) and curing agent sodium fluorosilicate according to the mass ratio of 10:1 , filler sand and cement: the mass ratio of water glass containing curing age...

Embodiment 2

[0036] The preparation of embodiment 2 thermal protection coating material

[0037] 1. Preparation of organic bottom layer: mix epoxy resin SM828, curing agent polyamide 650, and toughening agent liquid rubber according to the ratio of 7:2:1, and then coat it on the 190×120×5mm surface after removing rust and paint. On the steel plate, the coating thickness is 4mm.

[0038]2. Preparation of the middle layer of refractory lightweight aggregate: Evenly spread and paste refractory lightweight aggregate of 6-35 mesh on the organic bottom layer, the mass ratio of the refractory lightweight aggregate to the organic bottom layer is 1:0.4.

[0039] 3. Preparation of the inorganic surface layer: First, mix the filler sand and cement evenly in a mass ratio of 2.5:1, and then add it to the mixed solution of water glass (M=3) and curing agent sodium fluorosilicate in a mass ratio of 10:1 , filler sand and cement: the mass ratio of water glass containing curing agent=1:1. The surface lay...

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Abstract

The invention discloses a structure of a thermal protective coating material for a metal surface and a use thereof. The structure of the thermal protective coating material is composed of an organic base layer, a fire refractory light aggregate and an inorganic surface layer. A part of the fire refractory light aggregate is embedded in the organic base layer and a part of the fire refractory light aggregate is embedded in the inorganic surface layer. The organic base layer is composed of epoxy resin, a curing agent polyamide and a toughening agent liquid rubber. The inorganic surface layer is composed of water glass, a curing agent sodium fluorosilicate, sand and cement. The thermal protective coating material can resist rocker simulated gas flow erosion, the metal backside temperature does not exceed 150 DEG C, and the coating has good heat insulation performances.

Description

technical field [0001] The invention relates to a structure of a heat protection coating material for a metal surface, in particular to a structure and application of a heat protection coating material used for coating the surface of a rocket launch pad to reduce the back temperature of a rocket launch pad, and belongs to the High temperature insulation protection field. Background technique [0002] With the development of aerospace and aerospace industry, thermal protective coating materials 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 rocket launch pad is coated with a thermal protective coating material, it can insulate the metal surface, reduce thermal ablation and thermal shock, and prevent the rocket launch pad from thermal fatigue, thermal cracking and thermal shock under the action of multiple ther...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B3/14B32B7/12B32B37/12C09D163/00C09D7/12
CPCB32B15/04B32B3/14B32B7/12B32B37/12B32B2255/06B32B2255/20B32B2255/26B32B2307/304B32B2307/3065C09D7/40C09D163/00
Inventor 马磊张巍王国鹏王晓东张涛
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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