High-temperature glaze coating, preparation method thereof, binder and using method of coating

A technology of surface coating and high-temperature glaze, applied in the field of coatings, can solve the problems of low emissivity and absorption rate, poor high temperature resistance, easy attenuation, etc., and achieve the effects of long service life, reduced surface energy, and not easy to be stained

Active Publication Date: 2013-03-27
四川科达节能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing far-infrared energy-saving coatings all belong to the traditional black body technology, which has poor high temperature resistance, low emissivity and absorptivity in high temperature areas, and is unstable and easy to attenuate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Preparation of coating

[0034] Weigh 10kg silicon carbide (CSi), 1.5kg silicon dioxide, 0.8kg ferric oxide, 2.5kg brown corundum, 2.2kg chromium oxide (Cr 2 o 3 ), 1kg manganese trioxide, 1.5kg titanium dioxide (TiO 2 ), 0.8kg cobalt oxide (CoO), 0.8kg cerium oxide (CeH 4 o 4 ), 5kg zirconia (ZrO 2 ), 22kg zirconium silicate (ZrSiO 4 ), 0.9kg kaolin, 1kg talc. Put all components except kaolin and talc into a ball mill, mix and grind them into powder. Put the ground powder into a sintering furnace for sintering at a temperature of 1200° C. for 2 hours, and cool to room temperature. Put the sintered material into the ball mill again for secondary grinding until the particle size of the material becomes 200nm. Then add kaolin and talc to the material after secondary grinding, and stir for 0.6h at a stirring speed of 1000 rpm to make the components evenly mixed. Finally, put the stirred material into a grinder and grind for 10 minutes to obtain the product.

...

Embodiment 2

[0046] 1. Preparation of coating

[0047] Weigh 35kg silicon carbide, 8.4kg silicon dioxide, 4.2kg ferric oxide, 11.2kg brown corundum, 14kg chromium oxide, 5.6kg manganese trioxide, 7kg titanium dioxide, 3kg cobalt oxide, 7kg cerium oxide, 12.4kg oxide Zirconium, 25.2kg zirconium silicate, 4.2kg kaolin, 2.8kg talc. Put all components except kaolin and talc into a ball mill, mix and grind them into powder. Put the ground powder into a sintering furnace for sintering at a temperature of 1300° C. for 3 hours, and cool to room temperature. Put the sintered material into the ball mill again for secondary grinding until the particle size of the material becomes 300nm. Then add kaolin and talc to the material after secondary grinding, and stir for 1.8 hours at a stirring speed of 1200 rpm, so that all components are mixed evenly. Finally, put the stirred material into a grinder and grind for 15 minutes to obtain the product.

[0048] 2. Use of coatings, apply the coatings of thi...

Embodiment 3

[0055] 1. Preparation of coating

[0056] Weigh 21.5kg silicon carbide, 8kg silicon dioxide, 1.5kg ferric oxide, 7kg brown corundum, 10kg chromium oxide, 5.5kg manganese trioxide, 3kg titanium dioxide, 2kg cobalt oxide, 3.5kg cerium oxide, 12kg zirconia , 22.5kg zirconium silicate, 2kg kaolin, 1.5kg talc. The fineness of each component raw material is as follows: the fineness of silicon carbide, silicon dioxide, ferric oxide, brown corundum, chromium oxide and manganese trioxide is 800-1000 mesh respectively, titanium dioxide, cobalt oxide, cerium oxide, oxide The fineness of zirconium, zirconium silicate, kaolin and talc are 600-800 mesh respectively.

[0057] Put all components except kaolin and talc into a ball mill, mix and grind them into powder. Put the ground powder into a sintering furnace for sintering at a temperature of 1250° C. for 3 hours, and cool to room temperature. Put the sintered material into the ball mill again for secondary grinding until the particle ...

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Abstract

The invention discloses a high-temperature glaze coating, a preparation method thereof, a binder and a using method of the coating, and aims at solving the problems of poor high-temperature resistance, low emissivity and absorptivity in a high-temperature zone, instability, and easiness of attenuation of the existing far-infrared energy-saving coating. The high-temperature glaze coating has the characteristics of good radiation heat transfer effect, high external blackness (the emissivity is greater than 0.95) and the like, and has the advantages of stable emissivity and absorptivity, non-attenuation performance and long service life in a long-term use process. Meanwhile, the coating can be tightly combined with a basal body by matching with the binder disclosed by the invention; the adhesive force is increased; a glazed ceramic polymer can be formed on the basal body after high-temperature sintering; the high-temperature glaze coating has the advantages of hardness, abrasive resistance, and long service life, and does not fall off; and the coating disclosed by the invention can also evenly coat the surface which cannot be covered by general coatings.

Description

technical field [0001] The invention relates to the field of coatings, especially the field of coatings with high temperature resistance, oxidation resistance, wear resistance, ceramization and high emissivity, specifically a high-temperature glaze coating, its preparation method, binder and application method. Background technique [0002] Most of the existing industrial heating furnaces are built with refractory bricks, castables and refractory fibers. The inner wall of the heating furnace is scoured and corroded by the high-temperature air flow, resulting in a shorter service life of the heating furnace. At the same time, materials such as refractory bricks, castables, and refractory fibers used to construct heating furnaces have low emission efficiency, high energy consumption, and low heating efficiency. In order to increase the heat obtained by the heated workpiece, it is necessary to increase the radiation heat transfer in the furnace and increase the emissivity of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 潘亚莉杨柯
Owner 四川科达节能技术有限公司
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