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Spray coating processing SPRAY PROCESSING

Tungsten carbide spraying on valve plates

Our company provides supersonic WC coating services for valve balls and valve discs year-round to valve manufacturers with high-quality requirements.

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Valve and Ball Valve Thermal Spraying Tungsten Carbide Coating

Our company provides supersonic WC coating services for valve balls and valve discs year-round to valve manufacturers with high-quality requirements.

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Ball valves, ash valves, and valve plates coated with tungsten carbide.

Spherical hardening treatment, wear-resistant coating for valve internal cavities, hard-sealed ball valves, coal ash valves, and tungsten carbide valve discs—our company employs advanced supersonic flame spraying technology to apply ultra-wear-resistant tungsten carbide coatings to various components.

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We specialize in thermal spray coating services for various industries.

If your products have high requirements for surface finish and dimensional accuracy, or if they will be in long-term contact with liquids and thus demand enhanced wear resistance and corrosion protection, you should choose our company’s tungsten carbide coating applied using the American Praxair JP8000 equipment. From materials to equipment, processes to solutions—we’ve got it all covered in coatings.

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Supersonic Spraying of WC Tungsten Carbide on Ball Valve Disc

Our company employs an advanced supersonic flame spraying process to apply ultra-wear-resistant tungsten carbide coatings onto various components. The wear resistance of these coatings is 2 to 4 times higher than that achieved by other surface treatment processes and tens of times greater than that of ordinary stainless steel. The superiority of the supersonic process stems from its exceptionally high jet velocity and relatively low temperature at the workpiece surface—typically ranging from 120 to 200 degrees Celsius—which results in an extremely dense coating microstructure with excellent bonding strength. Moreover, the process causes minimal carbon loss and phase transformation in the substrate material. When comparing processes using the same materials, the hardness of supersonic coatings is significantly higher than that of other thermal spray coatings, reaching a hardness of HV1300. As a result, these coatings provide outstanding protection for a wide range of highly wear-prone components.

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