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

Category:

Wear-resistant coating for impeller blades

Petrochemicals

Coal mining industry

Hydropower and Water Resources

Key words :

碳化钨粉末涂层

机械配件磨损位喷涂

碳化钨修复

Request for quotation Phone: 020-84836251

Product Description

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, which can extend the service life of impellers by several times. We employ a supersonic thermal spraying tungsten carbide repair solution, resulting in a dense coating with high hardness and excellent wear resistance, thereby significantly prolonging the service life of the components.

Tungsten carbide powder coating:

Tungsten carbide (WC) is the primary raw material used in the manufacture of cemented carbides and boasts exceptionally high microhardness. Commonly used WC-based coatings include powders with 8% Co, 12% Co, and 17% Co content. The addition of cobalt in varying proportions to WC primarily serves as a binder, enhancing the toughness of the coating and preventing carbon burn-off during the spraying process. Chromium carbide (Cr2C3), on the other hand, exhibits high hardness and excellent resistance to high-temperature oxidation and wear, with a maximum service temperature reaching up to 800℃. Typically, Cr2C3 is used in combination with Ni-Cr alloys and is mainly applied in high-temperature wear-resistant areas.

Wear-Resistant Tungsten Carbide Repair Coating Process for Mechanical Components—Tungsten Carbide Wear-Resistant Coating Parameters:
Processing procedure: → Sandblasting → Preheating → Primer coating → Tungsten carbide spraying (thickness: 0.04–1.0 mm) → Polishing;
Processing method: Plasma/Supersonic Flame Spraying Tungsten Carbide Coating
Performance indicator: Hardness can reach: HRC70~80
Bonding strength: ≥90 MPa
High temperature resistance: Above 1200℃
Coating thickness: 0.04 mm ~ 1.0 mm
Service life: Longer than traditional methods
The processing range has been increased by 3 to 6 times: diameter—from tens of millimeters to hundreds of millimeters.
Length: Can be processed from a few millimeters to several meters.