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Weather-resistant ceramic coating material

A ceramic coating and weather-resistant technology, applied in the coating, metal material coating process, melt spraying and other directions, can solve the problem that the coating cannot completely discharge the air, chromium is toxic to the human body, and should not be used in large quantities. The effect of reducing interface residual stress, reducing structural defects and long service life

Inactive Publication Date: 2016-09-28
MAANSHAN JINSHENG IND DESIGN
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AI Technical Summary

Problems solved by technology

Although adding a certain amount of glass glaze enhances the cohesion between the powders and improves the wear resistance of the coating, the coating prepared by spraying cannot completely discharge the air, and there are a large number of pores, which cannot be achieved even after high temperature sintering. To improve, glass glaze needs to be painted many times, the construction is complicated, and chromium is toxic to the human body, so it is not suitable to use in large quantities

Method used

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Embodiment Construction

[0014] A weather-resistant ceramic coating material, prepared from the following raw materials in parts by weight (kg): glass glaze 14, zeolite 2, zirconia ceramic powder 78, aluminum sol 4, molybdenum disulfide 1.3, barium sulfate 0.5, 0.6% Aluminate coupling agent 0.4, nickel powder 1.1, fluorosilicon emulsion 2, hexagonal boron nitride 4, bismuth oxide 1, antimony trioxide 0.8, alkali-free glass powder 3, an appropriate amount of ethanol, and an appropriate amount of deionized water.

[0015] The weather-resistant ceramic coating material is prepared by the following specific steps:

[0016] (1) Add an appropriate amount of absolute ethanol to the glass frit, wet ball mill it in a planetary ball mill for 5 hours, dry it at 105°C after ball milling, and then add it to a sintering furnace and pre-fire it at 480°C for 22-32min. After cooling, add an appropriate amount of binder to make a fine powder with a particle size of 10 μm, and dry it for later use;

[0017] (2) Stir mo...

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Abstract

The invention discloses a weather-resistant ceramic coating material, which is prepared from the following raw materials (by weight): 14-18 parts of glass glaze, 2-3 parts of zeolite, 78-85 parts of zirconia ceramic powder, 4-6 parts of alumina sol, 1.3-1.5 parts of molybdenum disulfide, 0.5-0.8 part of barium sulfate, 0.4-0.6 part of 0.6% aluminate coupling agent, 1.1-1.4 parts of nickel powder, 2-3 parts of a fluoro-silicon emulsion, 4-6 parts of hexagonal boron nitride, 1-2 parts of bismuth oxide, 0.8-1 part of antimony oxide, 3-5 parts of alkali-free glass powder, a proper amount of anhydrous ethanol and a proper amount of deionized water. The ceramic coating effectively improves bonding strength of a surface ceramic material and a matrix, maintains good antifouling, heat-conducting and weather-resistant properties, has long service life, and is worth of promotion.

Description

technical field [0001] The invention relates to the technical field of ceramic coatings, in particular to a weather-resistant ceramic coating material. Background technique [0002] Exhaust equipment plays an important role in kitchens, laboratories, factories and other fields. Generally, it can be divided into exhaust hood, air duct, dust removal and purification equipment, fan, equipment shell and other parts. Among them, the materials of dust removal and purification equipment are different according to different fields. Most of them will use alloy materials. The performance of alloy materials greatly affects the use effect and life of equipment. The thermal stress generated by the ceramic coating during the friction process is relatively small, and the coating is not prone to severe fracture. It has the characteristics of low porosity, low friction coefficient, high thermal conductivity, corrosion resistance, and high hardness. It is suitable for high temperature, corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622C04B35/63C04B35/634C23C4/134C23C4/10C23C24/10
CPCC04B35/48C04B35/622C04B35/6303C04B35/634C04B2235/3215C04B2235/3294C04B2235/3298C04B2235/3472C04B2235/36C04B2235/386C04B2235/40C04B2235/446C04B2235/9607C04B2235/9669C23C4/10C23C24/103
Inventor 吴铭
Owner MAANSHAN JINSHENG IND DESIGN
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