Preparation method of foam resin grinding wheel

The invention provides a preparation method of a foam resin grinding wheel, and relates to the technical field of grinding wheel preparation. The foam resin grinding wheel which is light in weight, is non-toxic, saves cost and is superior to ordinary resin grinding wheels on the aspects of hydrolytic resistance, abrasion resistance, heat conducting performance and the like can be manufactured. The method comprises the steps of S1, preparation of modified silicon carbide packing, wherein silane coupling agents and absolute ethyl alcohol are mixed evenly in a container, silicon carbide micro powder is added, stirred evenly in a water bath and then dried, and the modified silicon carbide packing is obtained; S2, preparation of the foam resin grinding wheel, wherein epoxy resin and solvents are added into the container and are stirred evenly at the water bath temperature of 60 DEG C, the modified silicon carbide packing is added, surface active agents are dripped, the mixture is stirred evenly, foaming agents, blowing promoter and curing agent components A are sequentially added, curing agent components B are added under the stirring condition, the mixture is stirred evenly and then is injected into a mould, then the mould is put into an oven to be subject to foaming, curing and demoulding, and the foam resin grinding wheel is obtained.