▎ 摘　　要

NOVELTY - Preparing far-infrared nano ceramic powder, comprises (1) mixing magnesium chloride, titanium tetrachloride, aluminum chloride, zirconium tetrachloride, yttrium chloride, palladium dichloride and deionized water to obtain mixed salt solution, and atomizing; (2) vacuum drying the far infrared nano ceramic powder, mixing coupling agent KH570, deionized water and ethanol to obtain coupling agent KH570 mixed system, adding oxalic acid, stirring, adding far infrared nano ceramic powder, and heating; (3) dispersing the coupling agent modified far infrared nano ceramic powder in deionized water to obtain coupling agent modified far infrared nano ceramic powder dispersion, and mixing with graphene slurry to obtain far infrared nano ceramic/graphene mixed solution; (4) freezing and drying to obtain dry far infrared nano ceramic/graphene composite sponge, and thermally pressing and sintering to obtain far infrared nano ceramic/graphene radiating fin; and (5) grinding to obtain product. USE - The method is useful for preparing far-infrared nano ceramic powder used in far-infrared nano-ceramic heat-dissipating coatings (claimed). ADVANTAGE - The method has better heat dissipation effect of the heat dissipation paint than that of most heat dissipation paints. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for hot-pressing sintering device for far-infrared nano-ceramic/graphene composite sponge.