News
Tungsten Carbide Coating Process
Release Date:
2025-07-31
Tungsten carbide spraying process is a commonly used surface treatment technique to enhance the hardness, wear resistance, and erosion resistance of materials.
Tungsten carbide spraying process is a commonly used surface treatment technology to enhance the hardness, wear resistance, and erosion resistance of materials.
1. Principle
Tungsten carbide spraying uses high-temperature plasma spraying technology to form a tungsten carbide layer on the substrate surface. During the spraying process, the carbide powder is heated and melted, then sprayed onto the substrate surface by the spraying gun, forming an even and dense tungsten carbide coating. This coating has high hardness, wear resistance, and erosion resistance, which can greatly extend the service life of the substrate.
2. Application Fields
The tungsten carbide spraying process is widely used in various fields such as manufacturing, aerospace, energy, and automotive industries.
Detailed applications include:
Cutting tools and machining tools: Tungsten carbide coatings can improve the hardness and wear resistance of tools, extend tool life, and enhance processing efficiency.
Molds and mold parts: Tungsten carbide spraying can increase the hardness and wear resistance of mold surfaces, reducing mold wear and damage.
Aerospace components: Tungsten carbide coatings provide corrosion resistance and high-temperature oxidation resistance for aerospace components, improving their service life and reliability.
Hydraulic and pneumatic components: Tungsten carbide spraying can reduce friction losses in hydraulic and pneumatic components, improving their operational efficiency and reliability.
Burners and heat exchangers: Tungsten carbide coatings can enhance the high-temperature performance and erosion resistance of burners and heat exchangers, extending their service life.
3. Process Flow
The process flow of tungsten carbide spraying includes the following main steps:
Surface preparation: Clean the substrate surface, remove impurities and oxides, and ensure surface smoothness.
Spraying equipment preparation: Place tungsten carbide powder into the spraying equipment and heat it to the melting point.
Spraying operation: Use the spraying gun to spray the melted tungsten carbide onto the substrate surface, forming an even coating.
Cooling and curing: After spraying is completed, perform cooling and curing treatment to harden the coating and bond it with the substrate.
Inspection and finishing: Conduct quality inspection of the sprayed coating and perform finishing and grinding as needed.
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