High temperature heat radiation coating and preparing method thereof

A technology of heat radiation and high temperature, applied in the direction of coating, etc., can solve the problems of poor mechanical properties of fiber cotton, low heat radiation rate of fiber cotton, short service life of fiber cotton, etc., achieve uniform heating, uniform radiation field, and prolong service life Effect

Inactive Publication Date: 2007-12-12
北京北科威斯迈技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The mechanical properties of fiber cotton are far worse than those of refractory bricks and casting materials. The hot air and thermal shock in the high-temperature furnace make the fiber cotton pulverized and fall off, so the service life of fiber cotton is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: The components of the high-temperature heat radiation coating are as follows, in parts by weight:

[0037] High temperature calcined alumina 50 parts

[0038] Zirconia 50 parts

[0039] Chromium oxide 80 parts

[0040] clinker 20 parts

[0041] Bentonite 30 parts

[0042] Carboxymethylcellulose 30 parts

[0043] Silicon carbide 100 parts

[0044] Copper oxide 50 parts

[0045] Brown fused alumina 200 parts

[0046] Silica sol 80 parts

[0047] Sodium silicate 200 parts

[0048] The particle size of each solid component above is not less than 360 mesh.

[0049] The preparation method is as follows:

[0050] Carboxymethyl cellulose is first made into a colloidal fluid, and then other solids are mixed and added according to the proportion to make a viscous paint product.

Embodiment 2

[0051] Embodiment 2: The components of the high-temperature heat radiation coating are as follows, in parts by weight:

[0052] High temperature calcined alumina 150 parts

[0053] Zirconia 80 parts

[0054] Chromium oxide 80 parts

[0055] clinker 20 parts

[0056] Bentonite 30 parts

[0057] Carboxymethylcellulose 30 parts

[0058] Silicon carbide 110 parts

[0059] Silica sol 90 parts

[0060] Sodium silicate 210 parts

[0061] The particle size of each solid component above is not less than 360 mesh.

[0062] The preparation method is as follows:

[0063] Carboxymethyl cellulose is first made into a colloidal fluid, and then other solids are mixed and added according to the proportion to make a viscous paint product.

Embodiment 3

[0064] Embodiment 3: The components of the high-temperature heat radiation coating are as follows, in parts by weight:

[0065] Zirconia 50 parts

[0066] Chromium oxide 90 parts

[0067] clinker 80 parts

[0068] Bentonite 50 parts

[0069] Carboxymethylcellulose 40 parts

[0070] Silicon carbide 80 parts

[0071] High temperature calcined alumina 180 parts

[0072] Sodium hexametaphosphate 100 parts

[0073] The particle size of each solid component above is not less than 360 mesh.

[0074] The preparation method is as follows:

[0075] Carboxymethyl cellulose is first made into a colloidal fluid, and then other solids are mixed and added according to the proportion to make a viscous paint product.

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PUM

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Abstract

The invention belongs to inorganic fire resistive material field, especially relates to a fire and irradiation resistive coating material and the preparation method. It is characterized in that the comprised materials and their proportion are as follows: aluminium oxide calcined at high temperature 2- 400 units, zirconium oxide 2- 100 units, chromium oxide 5- 100 untis, clinker 1- 100 units, alta-mud 1- 80 uints, hexametaphosphate 0- 100 units, carboxymethyl cellulose 1- 50 uints, silicon carbide 20- 100 units, iron oxide black 0- 60 units, aluminum hydroxide 0- 100 units, cobalt oxide 0- 50 untis, copper oxide 0- 50 units, brown fused alumina 10 -200 uints, silicasol 0- 100 uints, sodium silicate 0- 400uints, the grain size of each components is not less than 360 order. The coating mateiral is calcinated at high temperature and there is one calcination shell on fiber cotton, and the bearing force of calcination layer and fiber cotton are equal. The coating material employs high- emission material and so it can save energy.

Description

Technical field: [0001] The invention belongs to the field of inorganic refractory materials, in particular to a high-temperature radiation-resistant coating and a preparation method thereof. Background technique: [0002] It is an important state policy of our country's national economy to develop energy, rationally utilize and save energy. Energy conservation is one of the easiest and most effective ways to realize this national policy. In the furnace bodies of industrial furnaces such as heating furnaces, hot blast furnaces, oil refining furnaces, and cracking furnaces used in metallurgy, machinery, and petrochemical industries, the refractory materials used are mostly silicon and aluminum refractory bricks and amorphous castables. Due to the ratio of refractory fiber to cotton Refractory bricks have better heat insulation effect, so more kilns with higher requirements on temperature uniformity use refractory fiber cotton as furnace lining. However, refractory fiber cot...

Claims

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Application Information

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IPC IPC(8): C09D101/26C09D5/00
Inventor 向永清
Owner 北京北科威斯迈技术发展有限公司
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