Tungsten Carbide Sprayed Roller Shaft and Cylinder

We offer a wide range of thermal spray coating services, providing coatings with high bonding strength and exceptional density—guaranteed high-quality coatings. We process various types of rollers, including cooling rollers, stretching rollers, preheating rollers, coating rollers, guide rollers, and other components for carton machinery.

Blade Wear-Resistant Coating: Supersonic Spraying Tungsten Carbide Repair Solution

The supersonic spraying tungsten carbide repair solution produces a dense coating with high hardness and excellent wear resistance, thereby extending the service life of various blade workpieces.

Wear-resistant metal coatings, wear-resistant metal spraying services, and High-Velocity Oxygen-Fuel (HVOF) thermal spray process

Our company employs the High-Velocity Oxygen-Fuel (HVOF) thermal spraying process, specifically designed to provide wear- and corrosion-resistant coatings on screw conveyor surfaces. This process can be used both for pre-protection of new components and for refurbishing existing ones. The coating hardness can reach above HRC70, with a typical thickness ranging from 0.15 to 0.20 mm. The coating exhibits a uniform and consistent appearance, free of porosity, and boasts high bonding strength. Moreover, during spraying, the temperature is precisely controllable, ensuring that the workpiece remains completely free from any deformation. This technology is ideally suited for applications involving particle abrasion, such as turbine impellers in power plants, pump impellers, helical blades, and screw conveyors.

Electrical insulation bearings with specially coated inner and outer rings, offering excellent corrosion resistance and long service life—motor insulation bearings.

A key feature of insulated bearings is the presence of an extremely thin (on the order of micrometers) coating on their surface, which provides electrical insulation and can withstand electrical arcing caused by voltages exceeding 500V. A thicker coating can even resist high-voltage discharges up to 1,000V, thereby effectively preventing defects such as arcing induced by induced currents on the spindle and bearing, which could lead to corrosion on the bearing surface, the formation of shrinkage cavities on metal surfaces, and the creation of grooves on the bearing’s rolling elements. Here, a special note: At high frequencies, the induced shaft current can become substantial. If insulated bearings are not used, the circulating currents that flow through the bearing can easily cause overheating or severe electrochemical corrosion, ultimately leading to bearing damage.

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