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High temperature resistant and erosion resistant inorganic protective coating

A protective coating, anti-scour technology, applied in the direction of coating, etc., can solve the problems of complex working environment and difficult to meet protection requirements.

Active Publication Date: 2011-04-13
中昊北方涂料工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The working environment of aircraft engines, automobile engines, and gas turbines is complex, requiring coatings not only to be resistant to high temperature and erosion, but also to have properties such as resistance to humidity and heat, salt spray, lubricating oil, fuel oil, and certain specific synthetic oils. It is difficult for high-temperature resistant coatings to meet the protection requirements of engine parts under the environment of high temperature (600°C), humidity and heat, and salt spray. Resistance to fuel oil and some specific synthetic oils can meet the needs of the engine working environment

Method used

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  • High temperature resistant and erosion resistant inorganic protective coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] First add 1.0g of phosphoric acid into the reaction flask, then add 60.0g of deionized water while stirring, then add 4.0g of chromium trioxide and 24.0g of dihydrogen phosphate and continue stirring for 2 hours to form a mixed solution 1, and add After 2.0g of alumina, 3.0g of silicon oxide and 2.5g of iron trioxide, disperse at high speed for 2 hours, and filter through a 300-mesh copper mesh to prepare component A; add 3.0g of copper acetate and 97.0 g of ethylene glycol ethyl ether acetate to the reaction bottle g After stirring evenly, use 300-mesh copper mesh to filter to prepare component B; before use, mix components A and B uniformly at a ratio of 100:1 and then spray to make a board.

[0016] High temperature resistance (600°C) 1000h intact, damp heat resistance 1000h is grade 1, salt spray resistance 2000h intact, erosion resistance 354L / Mil

Embodiment 2

[0018] First add 2.0g of phosphoric acid into the reaction flask, then add 60.0g of deionized water while stirring, then add 3.0g of chromium trioxide and 22.0g of dihydrogen phosphate and continue stirring for 2 hours to form a mixed solution 1, and add Alumina 2.0g, silicon oxide 3.0g, ferric oxide 1.5g, disperse at high speed for 2h, use 300-mesh copper mesh to filter to prepare component A; add copper acetate 3.0g and ethylene glycol ethyl ether acetate 97.0 g After stirring evenly, use 300-mesh copper mesh to filter to prepare component B; before use, mix components A and B uniformly at a ratio of 100:1 and then spray to make a board.

[0019] High temperature resistance (600°C) 1000h intact, damp heat resistance 1000h is grade 1, salt spray resistance 2000h intact, erosion resistance 356L / Mil

Embodiment 3

[0021] Add 60.0 g of deionized water into the reaction flask, then add 5.0 g of chromium trioxide and 24.0 g of dihydrogen phosphate and continue to stir for 2 hours to form a mixed solution 1, and add 2.0 g of aluminum oxide, 3.0 g of silicon oxide, After 2.5g of iron trioxide, disperse at high speed for 2h, filter with 300-mesh copper mesh, and prepare component A; add 3.0g of copper acetate and 97.0g of ethylene glycol ethyl ether acetate into the reaction bottle, stir evenly, and filter with 300-mesh copper mesh , Prepared as component B; before use, mix the components A and B uniformly at a ratio of 100:1 and then spray the board.

[0022] High temperature resistance (600°C) 1000h intact, damp heat resistance 1000h is grade 1, salt spray resistance 2000h intact, erosion resistance 350L / Mil

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Abstract

The invention discloses a high temperature resistant and erosion resistant inorganic protective coating, which comprises components A and B. The component A comprises 1 to 10 weight percent of silicon oxide, 1 to 10 weight percent of aluminum oxide, 1 to 5 weight percent of ferric oxide, 3 to 8 weight percent of chromium trioxide, 0 to 5 weight percent of phosphoric acid and 80 to 95 weight percent of solution of dihydric phosphate, wherein the particle sizes of the silicon oxide and the aluminum oxide are smaller than 300 nanometer; and the ratio of the silicon oxide to the aluminum oxide is3:1-1:3. The component B contains 1 to 10 weight percent of copper acetate and 90 to 99 percent of ethylene glycol monoethyl ether acetate. The ratio of the component A to the component B is 100:0.5-2.0.

Description

technical field [0001] The invention relates to a high-temperature-resistant and erosion-resistant inorganic protective paint. It is mainly used for the protection of related components of aircraft engines, and can also be used as high temperature and anti-scouring protection for other engines and gas turbine components. Background technique [0002] In the aviation industry, with the increasing flight speed of aircraft, the requirements for aircraft engines are getting higher and higher, and the temperature of aircraft engines is getting higher and higher during operation. The exhaust gas has a strong erosion and corrosion effect on some components of aircraft engines. In order to enhance the high temperature and erosion resistance of aircraft engine components, many countries and companies have adopted high temperature and erosion resistant coatings for protection. [0003] In the automobile industry, the power of the engine needs to be greatly increased with the increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/00
Inventor 王志强孟军锋王国炜王亚文胡进奔
Owner 中昊北方涂料工业研究设计院有限公司
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