Method of manufacturing a brake disc, particularly a shaft or wheel brake disc for railway vehicles

摘要

The method involves casting a support body from light metal alloy in a mould (1). The support body has an annular layer (11,12) of metal ceramic compound material on one or both sides, which has a friction surface for a brake caliper. The molten masses of the support body material and the layer material are cast one on the other in the mould on a time-delayed basis. The first cast molten mass, or at least its upper surface area, is hot enough on hardening to form a gradient structure in the transition area of the two materials. - The first cast molten mass is cooled to a temperature between the casting temperature and 100 deg. C. The inlay is prefabricated from the material of the annular layer. The inlay is placed in the mould and is cast around by the molten mass of the support body material. At least the area of the inlay coming into contact with the molten mass of the support body material is heated so that a gradient structure is formed in the transition area of the materials.