A process for the preparation of a vulcanizing mold with a plurality of to a circumferentially closed, the form of impeller profile segments and a vulcanizing mold

摘要

A method for the production of profile segments (1) a curing mould (6), preferably a vulcanization mold, each of which comprises a base body, on the inside of a shaped surface (3), wherein said at least one region of the forming surface (3) consisting of a porous, in a profile segment press the form of (16) is compressed and sintered material. According to the invention, there is arranged in each profile segment press the form of (16) a plurality of aligned parallel to one another, in material bima rods (9) in such a way that the longitudinal axes of the material bima rods (9), at least approximately perpendicularly to the form of surfaces surface (3) are aligned, that material bima rods (9) is used, which is made from a along the axially parallel core (10) of a filling material, while the core shroud (11) of the longitudinally axially parallel core made of metal powder is loosely connected to one another, that, to obtain a green profile segment part (1) the material bima rods (9) in the profile segment press the form of (16) is pressed, the green part that is subsequently subjected to a sintering process, by means of which the filler material is removable, so that in the roughly perpendicular to the mould surface (3) of the microchannels (4) remain arranged.