Graphite-powder casting coating

The invention discloses a graphite-powder casting coating, which is prepared from the following raw materials in parts by weight: 44 parts of graphite powder, 8 to 12 parts of diatomite, 9 to 11 parts of lauryl sodium sulfates, 1 to 4 parts of titanium dioxide, 6 to 8 parts of bonding agents, 5 to 10 parts of acrylic resin, 8 to 10 parts of stearic amides and 16 to 20 parts of ethyl alcohol, wherein the graphite powder and the titanium dioxide are enabled to pass through a 220-mesh screen. According to the graphite-powder casting coating, the graphite powder is mainly used as the main raw material; various additive materials are reasonably formulated by quantifying the graphite powder; the heat insulation effect is good; the diatomite, the lauryl sodium sulfates, the titanium dioxide, the biding agents, the acrylic resin and the stearic amides are added; various components interact; the adhesive force of the coating is improved; further, the coating is good in chemical stability; the occurrence rate of scour troughs in a production process is decreased; the sand fusion phenomenon of a cast part is avoided.