Process for shrink-fitting a cylindrical ceramic part in a ferrous metallic flange, and the ceramic-metal composite body produced

摘要

The tensile stress of a ceramic-metal compound by non-positive shrinking a cylindrical ceramic part (1) in a flange (2) can be improved in the axial direction of the ceramic part characterized in that d at room temperature, the diameter D of the bore of the flange relative to the diameter of the form-locking with having the flange in contact passing portion of the ceramic part an under-dimensioning of 13-27 microns, the form-fitting coming into contact with the flange cylindrical surface of the ceramic part to a roughness Ra of 0.05-0.2 micrometers, the bore surface of the flange a roughness Ra of 0.4-0.8 microns is processed and carried out, the heating of the flange to a temperature which is below the SN temperature of the ceramic material and by joining the ceramic member of the group consisting of (1) and the flange (2) on cooling to room temperature, the ferrous material not past its yield point R _po.2 claimed.