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Coating material with high adhesion with matrix

A coating material and bonding technology, applied in the field of ceramic coatings, 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, so as to reduce the residual stress of the interface and achieve good cooling and heating. Hardness and wear resistance, low cost effect

Inactive Publication Date: 2016-09-28
MAANSHAN JINSHENG IND DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 coating material with high adhesion to the substrate, prepared from the following raw materials in parts by weight (kg): glass glaze 12, alumina ceramic powder 70, sodium carboxymethylcellulose 3, sodium silicate 4, Tin dioxide 1.6, boron glass powder 0.6, silica sol 4, copper-nickel alloy 2, cobalt oxide 0.6, sodium carbonate 1.2, titanium carbide 6, an appropriate amount of ethanol, and an appropriate amount of deionized water.

[0015] The coating material with high adhesion to the substrate is prepared by the following specific steps:

[0016] (1) Add an appropriate amount of absolute ethanol to the glass frit, wet ball mill in a planetary ball mill for 5 hours, dry at 90°C after ball milling, and then add it to a sintering furnace for pre-sintering at 350°C for 25 minutes, after cooling Then 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) Dissolve sodium carboxymethyl cellulose and s...

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Abstract

The invention discloses a coating material with high adhesion with a matrix. The coating material is prepared from the following raw materials (by weight): 12-15 parts of glass glaze, 70-80 parts of alumina ceramic powder, 3-4 parts of carboxymethylcellulose sodium, 4-5 parts of sodium silicate, 1.6-2 parts of tin dioxide, 0.6-0.8 part of boron glass powder, 4-6 parts of silica sol, 2-3 parts of copper-nickel alloy, 0.6-0.9 part of cobalt oxide, 1.2-1.5 parts of sodium carbonate, 6-8 parts of titanium carbide, a proper amount of anhydrous ethanol and a proper amount of deionized water. The ceramic coating provided by the invention has a simple preparation process, is low-cost and is convenient to coat. The prepared coating has good cold and hot hardness and wear-resistance, has high adhesion with a matrix, is not easy to fall off, and is worth of promotion.

Description

technical field [0001] The invention relates to the technical field of ceramic coatings, in particular to a coating material with high adhesion to a substrate. 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 temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622C03C8/00
CPCC03C8/00C04B35/10C04B35/62222C04B2235/3275C04B2235/3293C04B2235/36C04B2235/3843C04B2235/405C04B2235/407
Inventor 吴铭
Owner MAANSHAN JINSHENG IND DESIGN
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