Preparation of wear-resistant and corrosion-resistant coating with coarse titanium carbide

The hard particles used in wear-resistant corrosion resistant coating materials are mainly TiC and other compounds, TiC has the advantages of low density, high hardness (HW400 3800), small friction coefficient, etc., is a common high hardness wear-resistant material in industry, even to high temperature 1100°C will not decompose, good thermal stability. Due to the fine particle size of TiC powder and relatively poor wear resistance, the solution is to use coarse granular TiC powder, and the only way to manufacture coarse granular TiC powder is self-propagating high-temperature synthesis technology. Self-propagating high-temperature synthesis technology is a new technology that uses the self-exothermic heat of chemical reaction to prepare materials, making full use of the high-energy exothermic reaction between elements when forming compounds. In addition to the small amount of external energy necessary to trigger the synthesis reaction, the whole reaction process mainly relies on the heat release of the material itself to maintain. It has the characteristics of very short synthesis time, fine grain of the synthesized product, controllable particle size of the powder by controlling the subsequent crushing process.