Ceramic coating material for exhaust equipment

A technology of ceramic coating and exhaust equipment, applied in coating, metal material coating process, fusion spraying, etc., can solve the problems that the coating cannot completely discharge the air, chromium is toxic to the human body, and should not be used in large quantities. , to achieve the effect of reducing the residual stress of the interface, excellent anti-fouling performance 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 ceramic coating material for exhaust equipment, prepared from the following raw materials in parts by weight (kg): glass glaze 13, polysiloxane 1, silicon nitride ceramic powder 75, water glass 1.5, carbon nanotube 3 , titanate coupling agent 0.4, nano-zinc aluminum oxide 1, polytetrafluoroethylene 0.6, iron oxide 1.2, chromium oxide 8, water-based acrylic emulsion 3, zircon sand 0.8, deionized water amount.

[0015] A ceramic coating material for exhaust equipment according to claim 1, characterized in that it 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 505-525°C for 20 minutes. 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) Add appropriate amount ...

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Abstract

The invention discloses a ceramic coating material for exhaust equipment. The material is prepared from the following raw materials (by weight): 13-15 parts of glass glaze, 1-2 parts of polysiloxane, 75-80 parts of silicon nitride ceramic powder, 1.5-2 parts of water glass, 2-3 parts of carbon nanotube, 0.2-0.4 part of a titanate coupling agent, 1-1.3 parts of nano-aluminum zinc oxide, 0.6-1 part of teflon, 1.2-1.4 parts of ferric oxide, 6-8 parts of chromic oxide, 3-4 parts of a waterborne acrylic emulsion, 0.8-1 part of zircon sand and a proper amount of deionized water. The prepared composite ceramic coating has high toughness, high wear resistance, fire resistance and the like, has strong surface adhesion with a base material, has long service life, has excellent antifouling property, and is worth of promotion.

Description

technical field [0001] The invention relates to the technical field of ceramic coatings, in particular to a ceramic coating material for exhaust equipment. 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, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/584C04B35/622C04B35/63C04B35/634C04B35/632C23C4/134C23C4/10C23C24/10
CPCC04B35/584C04B35/622C04B35/6303C04B35/632C04B35/63424C04B2235/3217C04B2235/3241C04B2235/3272C04B2235/3284C04B2235/3427C04B2235/36C04B2235/483C04B2235/5288C04B2235/9607C04B2235/9669C23C4/10C23C24/10
Inventor 吴铭
Owner MAANSHAN JINSHENG IND DESIGN
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