Infrared radiation coating suitable for metal matrix and preparation method

A technology for infrared radiation coatings and metal substrates, which is applied in the field of infrared radiation coatings and its preparation, and can solve the problems of poor bonding between infrared radiation coatings and metal substrates, thermal expansion mismatch between metal substrates and coating materials, and problems between coatings and metal substrates. Solve problems such as poor bonding of the substrate to achieve the effects of improving energy utilization efficiency, improving corrosion resistance, and reducing high-temperature oxidation

Inactive Publication Date: 2012-11-21
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The reasons for the poor bonding performance between the infrared radiation coating and the metal substrate are: on the one hand, the metal substrate undergoes chemical changes (such as oxidation, chemical gas corrosion, etc.) during the heating process, which easily causes the overall coating to fall off; on the other hand, The combination of the coating and the metal substrate is not strong, and the thermal expansion properties of the metal substrate and the coating material do not match, and the coating is easy to fall off during use.

Method used

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  • Infrared radiation coating suitable for metal matrix and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to the formula that the mass ratio of component A and component B is 100%: 100%, the two components are weighed according to the proportion, stirred and mixed to obtain a viscous suspension fluid infrared radiation coating,

[0042] The mass ratio of each component in component A is: 70% transition metal oxide system infrared radiation powder, 10% inorganic bonding agent, 10% silicon carbide, 6% Zn powder, 1% carbon powder and 3% fluosilicic acid Sodium, the particle size of the silicon carbide is 100 mesh, the ingredients are ball milled, mixed, and packaged to obtain component A;

[0043] Among them, the mass ratio of each component in the transition metal oxide system infrared radiation powder is: 35%Fe 2 o 3 , 35%MnO 2 , 10%CuO, 10%Co 2 o 3 , 3%Mo 2 o 3 , 2%NiO, 2%TiO 2 , 2%V 2 o 5 and 1% WO 3 , mixed in a ball mill, and then heat-preserved at 1000°C for 8 hours using ceramic processing technology, and then crushed and sieved.

[0044] The mass ...

Embodiment 2

[0049] According to the formula that the mass ratio of component A and component B is 100%:80%, the above two components are weighed according to the proportion, stirred and mixed to obtain a viscous suspension fluid infrared radiation coating.

[0050] The mass ratio of each component in component A is: 50% transition metal oxide system infrared radiation powder, 20% inorganic bonding agent, 10% corundum, 5% zirconia, 10% Ni powder, 4% Al powder, 0.5 % carbon powder and 0.5% sodium fluorosilicate, the particle diameter of described corundum and zirconia is 50 orders, and this batching is carried out ball milling, mixing, sub-package promptly gets component A;

[0051] Among them, the mass ratio of each composition in the transition metal oxide system infrared radiation powder is: 70% Fe 2 o 3 , 15%CuO, 5%Co 2 o 3 , 6%Mo 2 o 3 , 1%TiO 2 , 1%V 2 o 5 and 2% WO 3 , mixed in a ball mill, and then heat-preserved at 1000°C for 8 hours using ceramic processing technology, an...

Embodiment 3

[0056] According to the formula that the mass ratio of component A and component B is 100%:120%, the above two components are weighed according to the proportion, stirred and mixed to obtain a viscous suspension fluid infrared radiation coating,

[0057] The mass ratio of each composition in component A is: 90% transition metal oxide system infrared radiation powder, 2% inorganic bonding aid, 2% Ni powder, 1% carbon powder and 5% sodium fluorosilicate, for this ingredient Perform ball milling, mixing, and packaging to obtain component A;

[0058] Among them, the mass ratio of each composition in the transition metal oxide system infrared radiation powder is: 30%Fe 2 o 3 , 25%MnO 2 , 30%CuO, 6%NiO, 5%V 2 o 5 and 4% WO 3 , mixed by a ball mill, and then heat-preserved at 1100°C for 6 hours using ceramic processing technology, and then crushed and sieved.

[0059] The mass ratio of each component in the inorganic bonding aid is: 20%Al 2 o 3 , 55%SiO2 2 , 6%MgO, 2%TiO 2 ...

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Abstract

The invention discloses an infrared radiation coating suitable for a metal matrix and a preparation method, a mass ratio of a component A to a component B is 80-120%, wherein the component A comprises the following raw materials by mass percentage: 30-90% of transitional metal oxides infrared radiation powder, 2-20% of inorganic bind additive, 0-30% of silicon carbide, 0-30% of corundum, 0-20% of zirconia, 0-20% of Ni powder, 0-20% of Zn powder, 0-20% of Al powder, 0-1% of carbon powder and 0-10% of sodium fluosilicate; the component B comprises the following raw materials by mass percentage: 60-95% of sodium silicate, 0-35% of water, 0-3% of dispersant, 0-1% of thickener, 0-1% of defoamer and 0-1% of leveling agent. After drying and solidifying the coating, the surface of the formed coating is compact, the infrared radiation coating has excellent infrared radiation performance and high temperature stability, and can firmly bonded with the metal matrix.

Description

technical field [0001] The invention relates to the field of infrared radiation energy-saving materials, in particular to an infrared radiation coating suitable for metal substrates and a preparation method thereof. Background technique [0002] Infrared radiation coating is a functional material that can improve the energy utilization efficiency of industrial furnaces such as boilers and heating furnaces, and play a role in energy saving and consumption reduction. Coating the infrared radiation coating on the heating body of the industrial furnace and the inner wall surface of the industrial furnace can take advantage of the excellent infrared radiation performance of the formed coating to enhance the radiation heat transfer efficiency in the furnace, improve the temperature uniformity in the furnace, and speed up the processing of the workpiece. The speed and quality of heating improves energy efficiency. Coating the infrared radiation coating on the surface of the heat e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor 黄端平徐庆张枫
Owner WUHAN UNIV OF TECH
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