High-strength precision casting wax and preparation method thereof

The invention discloses high-strength precision casting wax and a preparation method thereof. The precision casting wax is prepared from the following raw materials in parts by mass: 20 to 40 parts of microcrystalline wax, 20 to 40 parts of paraffin, 30 to 80 parts of hydrogenated rosin glyceride, 2 to 20 parts of carnauba wax, 2 to 20 parts of polyethylene grafted maleic anhydride, 5 to 30 parts of hydroxyethyl cellulose, 5 to 30 parts of starch and 1 to 3 parts of antioxidant. The precision casting wax provided by the invention has the characteristic that the performance of a wax mold is improved by compounding a high-molecular polymer and a plurality of fillers. The precision casting wax has extremely high bending strength and is not easy to deform; the hardness is high, and damage is not prone to occurring; the ash content is low, and the pollution to the environment is reduced; the surface is flat and smooth and easy to demould; the coating property and the flowability are relatively good. 本发明公开了一种高强度精密铸