Nano corundum grinding liquid for processing flange sealing surface of pump body

The invention discloses nano corundum grinding liquid for processing a flange sealing surface of a pump body, and relates to the technical field of casting grinding. The nano corundum grinding liquid is prepared from the following components in parts by mass: 90-100 parts of nano corundum powder, 15-18 parts of cubic boron nitride micropowder, 12-15 parts of microlite powder, 8-12 parts of a composite adhesive, 6-10 parts of chlorinated paraffin, 5-8 parts of a compound corrosion inhibitor, 3-5 parts of sodium citrate, 2-3 parts of zinc sulfate, 1-2 parts of concentrated nitric acid, 15-20 parts of glycerol and 200-250 parts of water. According to the nano corundum grinding liquid, the nano corundum is taken as a main grinding material, and other grinding materials and assistants are supplemented, so that the grinding performance of the grinding liquid is comprehensively improved; and a preparation method for the grinding liquid is simple, feasible, relatively low in device requirement, low in energy consumption and suitable for industrialized production.