NANO-STRUCTURED WC-CO POWDERS FOR THERMAL SPRAY COATING, METHOD FOR MANUFACTUING THE SAME, AND NANO-STRUCTURED THERMAL SPRAY COATING USING THE SAME

摘要

The invention nanostructure tungsten carbide for spray coating - relates to a cobalt-based powder, and a method of manufacturing nanostructured spray coating using the same. Nanostructured tungsten carbide for the thermal spray coating according to the invention to this method of preparing a cobalt-based powder, tungsten carbide-cobalt mixture, partial agglomeration by adding a binder and a plasticizer in the stage, the mixture to prepare a mixture of the dispersant and the solvent the step of preparing a slurry, spray drying the slurry by heating a portion of the aggregated phase, and spherical granules for producing spherical granules includes the step of removing the organic matter contained in the spherical granules. Through this invention can greatly improve the wear resistance of the sprayed coating. ; Spray coating, tungsten carbide, cobalt, slurry, partial cohesive