Wear-resistant coating repair for fan impeller blades

Our company provides repair services for worn areas on fan impellers in cement plants, power plants, and other facilities, as well as surface reinforcement coatings for new impellers, which can extend the service life of impellers by several times.

The induced-draft fan is one of the boiler’s primary auxiliary devices, responsible for continuously conveying gases. The main failure mode of the induced-draft fan is erosive wear caused by solid particles in the flue gas impacting and eroding its blades. Failure of the fan blades can lead to reduced operational efficiency or even complete shutdown.

Offer metal powder coating, wear-resistant metal spraying, and wear-resistant metal coatings.

We can restore scrapped and out-of-tolerance mechanical parts, bringing them “back to life.” Additionally, we can pre-protect the surfaces of new workpieces with wear-resistant and corrosion-proof coatings, effectively “extending their lifespan.”

Tungsten carbide wear-repair machining for impeller blade coating

Description: Our company provides repair services for worn areas on fan impellers in cement plants, power plants, and other facilities, as well as surface reinforcement coatings for new impellers. These services can extend the service life of impellers by several times. We employ a supersonic thermal spraying tungsten carbide repair solution, which produces a dense coating with high hardness and excellent wear resistance, thereby significantly prolonging the service life of the components. Carbon

Spray-on repair for worn areas of fan impeller blades

Our company provides repair services for worn areas on fan impellers in cement plants, power plants, and other facilities, as well as surface enhancement coatings for new impellers, which can extend the service life of impellers by several times. We employ a supersonic thermal spraying technique using tungsten carbide coatings, resulting in dense coatings with high hardness and excellent wear resistance, thereby significantly prolonging the service life of components. Tungsten carbide powder coatings—Tungsten carbide (WC) is the primary raw material used in the production of cemented carbides and boasts exceptionally high microhardness. Commonly used WC-based powder coatings include WC 8% Co, WC 12% Co, and WC 17% Co. The addition of cobalt in varying proportions to WC primarily serves as a binder, enhancing the toughness of the coating while preventing excessive carbon burn-off during the spraying process. Chromium carbide (Cr2C3) features high hardness and exhibits excellent resistance to high-temperature oxidation and wear, with a maximum operating temperature of up to 800°C. Typically, Cr2C3 is mixed with Ni-Cr alloys and is mainly applied to high-temperature wear-prone areas. Mechanical component wear-repair coating process using tungsten carbide—tungsten carbide wear-resistant coating parameters: Processing steps: → Sandblasting → Preheating → Primer application → Tungsten carbide spraying (thickness: 0.04–1.0 mm) → Grinding; Processing methods: Plasma or supersonic flame spraying. Tungsten carbide coating performance indicators: Hardness: Up to HRC 70–80; Bonding strength: ≥90 MPa; High-temperature resistance: Above 1200°C; Coating thickness: 0.04 mm–1.0 mm; Service life: 3–6 times longer than that achieved by conventional methods. Processing range: Diameter—from tens of millimeters to hundreds of millimeters; Length—from several millimeters to several meters.

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.

Tungsten Carbide Spraying and Processing

In the new-energy lithium-battery industry, various types of equipment—such as screw shafts, screw conveyors, battery raw-material crushers, mixers, conical hoppers, powder feeders, and feeding machines—are coated with wear-resistant tungsten carbide coatings on their surfaces.

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