Gel casting mold and process for preparing aluminum oxide double-hole guide rail green body

The invention belongs to the technical field of ceramic forming, and particularly relates to a gel casting mold and a process for preparing an aluminum oxide double-hole guide rail green body. The gel casting mold comprises an outer mold, a bottom plate and an inner mold, filter membranes are arranged on the inner side of the outer mold and the outer side of the inner mold, a drainage channel and a flat sheet membrane are arranged on the bottom plate, the filter membranes are arranged on the flat sheet membrane and coated with lubricating layers, a sealing layer is arranged at the contact position of the outer mold and the bottom plate, and a filling area is formed among the outer mold, the bottom plate and the inner mold. And a fixing clamp is arranged on the outer mold. The invention also provides a process thereof. According to the gel casting mold and the process for preparing the aluminum oxide double-hole guide rail green body, the problems of bending, deformation and cracking occurring in the gel casti