WC-10Co4Cr HVOF/HVAF thermal spray powder Excellent abrasion resistance

The chemical composition of DG.WC-10Co4Cr is 9.5% carbon, 10% cobalt, 4% chromium and the balance tungsten. This combination not only improves the hardness of the coating, but also enhances its wear and corrosion resistance. The powder is produced using agglomeration sintering process, which ensures its uniformity and stability. Its Vickers hardness ranges between 1200 and 1400 HV, showing its excellent hardness characteristics.

In terms of thermal spraying process, DG.WC-10Co4Cr is suitable for a variety of processes such as high temperature flame spraying (HVOF), high pressure air flame spraying (HVAF) and plasma spraying (APS). These processes can effectively deposit the powder coating onto the substrate surface to form a strong coating. The bonding strength exceeds 70MPa, the porosity is less than 0.8%, and the deposition rate is between 48% and 55%, showing its excellent coating quality.

In terms of spraying technology, the spray gun model of DG.WC-10Co4Cr is Lijia kerosene supersonic spray gun, and the powder particle size is 15-45um. During the spraying process, the kerosene consumption is 23L/h, the oxygen flow rate is 900L/min, the carrier gas flow rate is 8.0L/min, the powder feeding speed is 70-80g/min, and the spraying distance is between 320-360mm. It should be noted that the above parameters are for reference only, and the specific spraying parameters may be adjusted depending on the equipment.