High-temperature infrared radiation glaze and preparation method thereof

A high-temperature infrared and glaze technology, which is applied in the field of high-temperature infrared radiation glaze and its preparation, can solve the problems of reduced mechanical strength and thermal shock resistance, poor suspension, poor opacification performance, and lack of high radiation function. Good thermal stability, improved uniformity and coating toughness, and broad market prospects

Inactive Publication Date: 2012-03-28
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In recent years, various low and medium temperature infrared radiation glaze materials have been developed rapidly, such as the patent CN 1463940A, but its use temperature is below 850 ° C, and the high infrared radiation area is limited to the 8-25 μm far infrared band, which is not conducive to high temperature. radiation heat transfer
The high-temperature enamel coating technology introduced by the Ministry of Aviation Industry of my country from the former Soviet Union has finalized three products such as W-2, T-1 and B-1000 after years of experimental research by the Aeronautical Materials Research Institute, but the substrate can only be nickel-cobalt alloy, and the preparation process is strict, and must be prepared in special equipment; it cannot be applied to civilian products
The high-temperature glazes announced by the United States, Japan, South Korea and other countries, such as NBSA-19, etc., although the use temperature reaches 10

Method used

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  • High-temperature infrared radiation glaze and preparation method thereof
  • High-temperature infrared radiation glaze and preparation method thereof
  • High-temperature infrared radiation glaze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of high-temperature infrared radiation glaze. Wet ball mill RD 90-01 enamel bottom glaze powder, cordierite, and high-emissivity materials produced by Changzhou Bailong Porcelain Glaze Factory for 2.5 hours, filter out the balls, and stand for 1 hour , remove the ball mill liquid, then dry the ball mill wet material at 130°C, grind and sieve to obtain a fine powder of 280-320 mesh; evenly disperse the nano-alumina powder with a particle size of 50nm in the aqueous solution, stir evenly, and prepare 15-25% emulsion by weight; then they are sieved with 200 mesh sieved calcium fluoride, 200 mesh sieved glass flakes, 200 mesh sieved glass frit and 325 mesh sieve Chromium trioxide is calculated by weight percentage: glass flake 20%, glass frit 15%, enamel primer 15%, chromium trioxide 27%, calcium fluoride 1%, cordierite 10%, high emissivity material 10% , milky nano-alumina 2%; select raw materials, mix and make high-temperature infrared radiation glaze...

Embodiment 2

[0050] A kind of high-temperature infrared radiation glaze for heat-resistant steel and other metal surfaces. Wet enamel bottom glaze, cordierite, and high-emissivity materials are ball-milled for 2.5 hours, filtered out the balls, and left to stand for 1 hour to remove the ball-milling fluid. Dry the ball-milled wet material at 130°C, grind and sieve to obtain a fine powder of 280-320 mesh; disperse the nano-alumina powder with a particle size of 50nm in the aqueous solution, stir evenly, and make a weight percentage of 15-25 % emulsion; then they are sieved with 200 mesh calcium fluoride, 200 mesh sieved glass flakes, 200 mesh sieved glass frit and 325 mesh chromium trioxide by weight The percentages are: glass flakes 25%, glass frit 13%, enamel primer 21%, chromium trioxide 22%, calcium fluoride 1.5%, cordierite 8%, high emissivity material 8%, milky nano-dioxide Aluminum 1.5%; select raw materials and mix them to make high-temperature infrared radiation glaze.

[0051] Sp...

Embodiment 3

[0053] A kind of high-temperature infrared radiation glaze for heat-resistant steel and other metal surfaces. Wet enamel bottom glaze, cordierite, and high-emissivity materials are ball-milled for 2.5 hours, filtered out the balls, and left to stand for 1 hour to remove the ball-milling fluid. Dry the ball-milled wet material at 130°C, grind and sieve to obtain a fine powder of 280-320 mesh; disperse the nano-alumina powder with a particle size of 50nm in the aqueous solution, stir evenly, and make a weight percentage of 15-25 % emulsion; Then they are 200 order calcium fluoride with particle size, 200 order sieve glass flakes, 200 order sieve glass frit and 325 order chromium trioxide with particle size, calculated as: Glass flakes 33%, glass frit 10%, enamel primer 23%, chromium trioxide fine powder 17%, calcium fluoride 2%, cordierite 7%, high emissivity material 7%, milky nano aluminum oxide 1 %; Select raw materials and mix them uniformly to prepare high-temperature infra...

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Abstract

The invention relates to a high-temperature infrared radiation glaze and a preparation method thereof. The high-temperature infrared radiation glaze is characterized by comprising the following main constituent components in percentage by weight: 5-40% of glass flake, 10-17% of frit, 17-30% of chromium sesquioxide, 1-2% of calcium fluoride, 6-23% of base enamel, 7-12% of cordierite, 5-10% of high-emissivity material, and 0.4-2.0% of emulsus nanometer aluminium sesquioxide, wherein the sum of the glass flake and the frit is 22-50%. The high-temperature infrared radiation glaze disclosed by theinvention has a good suspension property and a good opacifying effect, a glaze layer with the advantages of smooth surface, high uniformity, high mechanical strength and good thermal-shock resistancecan be formed on the surface of a matrix by only spraying or coating the glaze once, and the formed glaze layer is easy to sinter and difficult in falling; and the high-temperature infrared radiationglaze has the long-term use temperature capable of reaching 1050 DEG C and the normal total emissivity of 0.87-0.92 in a total infrared band of 2.5-20mum, can be applied to metal heating substrates such as heat-resistant steel and the like in various heating and drying equipment, and has a wide application range.

Description

technical field [0001] The invention relates to a high-temperature infrared radiation glaze and a preparation method thereof. Background technique [0002] In recent years, various low and medium temperature infrared radiation glaze materials have been developed rapidly, such as the patent CN 1463940A, but its use temperature is below 850 ° C, and the high infrared radiation area is limited to the 8-25 μm far infrared band, which is not conducive to high temperature. Radiative heat transfer. The high-temperature enamel coating technology introduced by the Ministry of Aviation Industry of my country from the former Soviet Union has finalized three products such as W-2, T-1 and B-1000 after years of experimental research by the Aeronautical Materials Research Institute, but the substrate can only be nickel-cobalt alloy, and the preparation process is strict, it must be prepared in special equipment; it cannot be applied to civilian products yet. The high-temperature glazes re...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 朱小平蒋扬虎欧阳德刚陈建康吴杰丁翠娇
Owner 武汉钢铁有限公司
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