What is hard wear-resistant composite powder？

       It is a composite powder material with different components and proportions of ceramic and cermet powder particles as the hard phase, metal or alloy powder as the binder phase or in the form of coating. The coating structure is the particles of the hard phase dispersed in the base phase of the strong and tough metal or alloy coating, so it has excellent wear resistance, erosion resistance, fretting wear resistance and other functions. The properties of the matrix phase and the dispersed phase material, the wettability between the matrix phase and the dispersed phase particles, the number of the dispersed hard phase particles, the particle size, shape and distribution of the particles directly affect the hard wear-resistant composite powder coating. performance. Structural forms include coating type, agglomeration type and sintering type.



The powder varieties include cobalt-coated tungsten carbide, sintered cobalt-tungsten carbide, self-bonding tungsten carbide, nickel-coated carbide, nickel-chromium-chromium carbide high temperature wear resistance, high temperature impact wear resistance nickel-based tungsten carbide and other composite powder materials. Plasma spraying, plasma spraying welding, vacuum plasma spraying, explosive spraying and high-speed powder flame spraying are usually used to prepare anti-abrasive wear, erosion wear, fretting wear and high temperature wear resistant coatings.