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High-temperature infrared energy-saving coating based on boride ceramics and preparation method thereof

A technology of high-temperature infrared and energy-saving coatings, applied in coatings and other directions, can solve the problems of polluting products in the furnace, easy oxidation of coatings, fast decay of energy-saving effects, etc., and achieve the effect of less dosage

Inactive Publication Date: 2014-07-23
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing similar coatings have achieved a certain energy-saving effect, they have the following problems to varying degrees: 1. The coating is volatile at high temperature and pollutes the products in the furnace; 2. The coating is easily oxidized at high temperature, and the energy-saving effect decays quickly

Method used

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  • High-temperature infrared energy-saving coating based on boride ceramics and preparation method thereof
  • High-temperature infrared energy-saving coating based on boride ceramics and preparation method thereof
  • High-temperature infrared energy-saving coating based on boride ceramics and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics is composed of the following components by weight, based on the weight of silicon boride:

[0016]

[0017]

[0018] The particle size of the solid components in the above components is at least 320 mesh, and the particle size of the particles in the silica sol is less than 100 nanometers.

[0019] The preparation method is as follows:

[0020] The above-mentioned components are weighed according to the proportion, mixed, then put into a dispersing and grinding machine, and stirred at a high speed to make a viscous suspension fluid, and a high-temperature infrared energy-saving coating product based on high-emissivity boride ceramics is obtained.

[0021] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics was tested with a dual-band emissivity tester, and the infrared emissivity at room temperature was 0.89.

Embodiment 2

[0023] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics is composed of the following components by weight, based on the weight of silicon boride:

[0024]

[0025]

[0026] The particle size of the solid component in the above components is at least 320 mesh, and the particle size of the particles in the silica sol and aluminum sol are both lower than 100 nanometers.

[0027] The preparation method is as follows:

[0028] The above-mentioned components are weighed according to the proportion, mixed, then put into a dispersing and grinding machine, and stirred at a high speed to make a viscous suspension fluid, and then a high-temperature infrared energy-saving coating product based on high-emissivity boride ceramics can be obtained.

[0029] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics was tested with a dual-band emissivity tester, and the infrared emissivity at room temperature w...

Embodiment 3

[0031] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics is composed of the following components by weight, based on the weight of silicon boride:

[0032]

[0033] The particle size of the solid component in the above components is at least 320 mesh, and the particle size of the particles in the silica sol and aluminum sol are both lower than 100 nanometers.

[0034] The preparation method is as follows:

[0035] The above-mentioned components are weighed according to the proportion, mixed, then put into a dispersing and grinding machine, and stirred at a high speed to make a viscous suspension fluid, and then a high-temperature infrared energy-saving coating product based on high-emissivity boride ceramics can be obtained.

[0036] The high-temperature infrared energy-saving coating based on high-emissivity boride ceramics was tested with a dual-band emissivity tester, and the infrared emissivity at room temperature was 0.87.

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Abstract

The invention belongs to energy-saving coating for high-temperature thermotechnical kiln equipment, and particularly relates to high-temperature infrared energy-saving coating based on high-emissivity boride ceramics. A preparation method of the high-temperature infrared energy-saving coating based on the high-emissivity boride ceramics comprises the following steps: mixing aluminium oxide, silicon oxide, silicon boride, silicon carbide, silicon nitride, boron carbide, cordierite, bentonite, kaolin, zirconium boride, zircon sand, silica sol and alumina sol, then putting in a dispersion grinding all-in-one machine, stirring at a high speed so as to prepare viscous suspension fluid, thus obtaining the high-temperature infrared energy-saving coating based on the boride ceramics. The high-temperature infrared energy-saving coating based on the high-emissivity boride ceramics can be stored for a long term and does not go bad. The high infrared emissivity of the high-temperature infrared energy-saving coating can be kept at the temperature of 1300 DEG C, the infrared emissivity of the high-temperature infrared energy-saving coating is 0.87-0.94 at a room temperature, the attenuation of the infrared emissivity of the high-temperature infrared energy-saving coating is less than 3% within two years, and the using amount of the high-temperature infrared energy-saving coating per unit area is little.

Description

technical field [0001] The invention belongs to high-temperature thermal kiln equipment energy-saving coatings, in particular to high-temperature infrared energy-saving coatings based on high-emissivity boride ceramics. Background technique [0002] As a new energy-saving coating for industrial thermal kiln equipment, high-temperature infrared energy-saving coatings can not only save fuel, reduce energy consumption, and save costs, but also protect the lining materials, prolong the service life of the kiln, and reduce the pressure of the kiln. maintenance work. In addition, it can also strengthen the radiation heat transfer in the furnace, improve the uniformity of heating, improve the thermal efficiency of the furnace and the heating quality of the product. [0003] Internationally, developed countries have done a lot of work on the research and development of high-temperature infrared energy-saving coatings and their application in thermal furnaces. For example, many Jap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor 李江涛钱学强王峰韩召陈义祥
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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