Forming mould for radiation rubber case

The utility model relates to a forming mould for radiation rubber cases. The utility model has the advantages that the insulativity is good, the manufacture is convenient, and the cost is low. The utility model is composed of a lower mould set, wherein, the bottom of the lower mould set is provided with an upper mould which is provided with a central column groove, and the top of the lower mould set is provided with a boss which is provided with blind holes. The size of the surface of the periphery of the boss is smaller than the size of the inner circle surface of the groove, the diameters of the blind holes are larger than the diameter of the central column, and gaps are formed by casting when the blind holes and the central column are matched. The ends of the four corners of the boss are respectively provided with a double-stage shore, the top and the bottom stage surfaces of the shore are respectively larger and smaller than the tangent planes of the four corners of a radiation plate for a metal plate, and the gaps are formed by casting between the top stage plane and the tangent planes of the four corners.