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Wear-resistant and corrosion-resistant carbide ceramic coating and preparation method thereof

A ceramic coating and carbide technology, applied in the field of wear-resistant and corrosion-resistant carbide ceramic coating and its preparation, can solve the complex preparation method of SiC coating, poor bonding between coating and substrate, and large shrinkage of SiC coating and other problems, to achieve the effect of low size range requirements, increased compactness and good compactness

Pending Publication Date: 2021-10-19
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a wear-resistant and anti-corrosion carbide ceramic coating and its preparation method, which solves the problem of the complexity and high cost of the SiC coating preparation method and the preparation of SiC by the existing dipping method. The problem of large shrinkage of the coating, thereby avoiding the problem of poor bonding between the coating and the substrate prepared by the existing dipping method

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  • Wear-resistant and corrosion-resistant carbide ceramic coating and preparation method thereof
  • Wear-resistant and corrosion-resistant carbide ceramic coating and preparation method thereof
  • Wear-resistant and corrosion-resistant carbide ceramic coating and preparation method thereof

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preparation example Construction

[0035] The invention discloses a preparation method of a wear-resistant and anti-corrosion carbide ceramic coating, which specifically comprises the following steps.

[0036] Step 1: Pretreatment of the substrate

[0037] Sand the surface of the substrate first to remove the oxide skin, and then use finer sandpaper to polish it until the surface of the substrate is flat and the roughness is consistent. Put the polished substrate in anhydrous ethanol for 10-15 minutes to sonicate to remove the remaining abrasive grains and other pollution stains on the surface of the substrate. Put the ultrasonic substrate in an oven at 60°C to dry for 10-30 minutes, so as to completely volatilize the absolute ethanol on the surface of the substrate and ensure that the surface of the substrate is clean and pollution-free; complete the pretreatment of the substrate according to the above requirements to obtain a clean substrate.

[0038] Step 2: Preparation of impregnation solution and impregna...

Embodiment 1

[0058] A method for preparing a wear-resistant and anti-corrosion carbide ceramic coating, specifically comprising the following steps:

[0059] Step 1: Pretreatment of the substrate

[0060] The Q235 steel was first polished off the scale on the surface with No.320 sandpaper, and then polished successively with No.600 and No.800 sandpaper until the surface of the metal substrate was flat and the roughness was consistent. Put the polished metal substrate in anhydrous ethanol for 10 minutes and ultrasonically remove the remaining abrasive grains and other pollution stains on the surface of the metal substrate. Put the ultrasonic metal substrate in an oven at 60°C for 15 minutes to dry the anhydrous ethanol on the surface of the metal substrate and ensure that the metal surface is clean and free from contamination. Complete the pretreatment of the substrate according to the above requirements to obtain a clean substrate.

[0061] Step 2: Preparation of impregnation solution and...

Embodiment 2

[0067] A method for preparing a wear-resistant and anti-corrosion carbide ceramic coating, specifically comprising the following steps:

[0068] Step 1: Pretreatment of Metal Substrate

[0069] The Q235 steel was first polished off the scale on the surface with No.320 sandpaper, and then polished successively with No.600 and No.800 sandpaper until the surface of the metal substrate was flat and the roughness was consistent. Put the polished metal substrate in anhydrous ethanol for 15 minutes and ultrasonically remove the remaining abrasive grains and other pollution stains on the surface of the metal substrate. Put the ultrasonic metal substrate in an oven at 60°C for 30 minutes to dry the anhydrous ethanol on the surface of the metal substrate and ensure that the metal surface is clean and free from contamination. Complete the pretreatment of the substrate according to the above requirements to obtain a clean substrate.

[0070] Step 2: Preparation of impregnation solution a...

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Abstract

The invention discloses a wear-resistant and corrosion-resistant carbide ceramic coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method disclosed by the invention comprises the following steps: carrying out dipping treatment on a matrix in a dipping solution by adopting a dip-coating method to obtain a dipped matrix; and sequentially carrying out crosslinking treatment and pyrolysis treatment on the impregnated matrix to prepare the wear-resistant and corrosion-resistant carbide ceramic coating on the matrix. According to the wear-resistant and corrosion-resistant carbide ceramic coating prepared by the preparation method, the problems of complex preparation and high cost of the existing SiC ceramic coating and the problem of high contractibility of the SiC ceramic coating prepared by the existing impregnation process are solved; and good bonding property, compactness, continuity and effective corrosion resistance of the wear-resistant and corrosion-resistant carbide ceramic coating and a matrix are ensured.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to a wear-resistant and anti-corrosion carbide ceramic coating and a preparation method thereof. Background technique [0002] Steel is one of the pillar industries of our country's economy. Although its annual output ranks among the top in the world, its annual waste is also staggering. For example, metal components exposed to highly reactive or corrosive environments for a long time are easily corroded and damaged by oxidation. However, the cost of maintaining and replacing these materials is high, resulting in a serious waste of resources. Coatings can effectively protect steel from oxidation and corrosion, so coatings with corrosion resistance can be used as an effective method to solve this problem. Carbide has the characteristics of high stability, high hardness, and excellent wear resistance. Among them, silicon carbide has excellent characteristics such as high temperature s...

Claims

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Application Information

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IPC IPC(8): C04B35/80C04B35/565C04B35/571C04B35/622C23C18/12
CPCC04B35/565C04B35/571C04B35/62222C23C18/1204C23C18/127C04B2235/3418C04B2235/5224C04B2235/5244C04B2235/5236C04B2235/96
Inventor 李福平王月党薇赵康汤玉斐
Owner XIAN UNIV OF TECH
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