Abstract: The invention relates to a process for the impregnation of air core reactors or parts of air core reactors and impregnated air core reactors or parts thereof obtainable by said process.

Abstract: The invention relates to a process for the impregnation of air core reactors or parts of air core reactors and impregnated air core reactors or parts thereof obtainable by said process.

Abstract: The method of manufacturing a sheet stack for electromagnetic assemblies, consisting of ferromagnetic material, includes forming the sheet stack from raw magnetic steel sheets in a shaping tool without the use of spacers, if necessary with the help of positioning aids, and simultaneously introducing a hardenable mixture into the shaping tool in order to totally surround the sheet stack and to form an anti-corrosion layer and hardening or hardening out this casting compound according to the pressure-gelating method to connect the sheets together and to form the finished sheet stack in one single working step.

Abstract: The invention relates to a method of manufacturing a sheet stack (8) consisting of ferromagnetic material, and/or an assembly including such a sheet stack (8) and at least one further component (12, 13, 14). According to the invention, the sheet stack (8) is assembled from raw magnetic steel sheets, and is positioned in a shaping tool. Thereafter, by means of introducing a mixture into the tool and hardening or hardening out of the mixture, the sheets are surrounded by the mixture and connected together to form the finished sheet stack (8) in a single working step. In order to manufacture the assembly, the sheet stack (8) can be connected in the same working step with the components (12,13,14), and the assembly as a whole can be provided with its final electrical, magnetic, mechanical and/or geometric properties (FIG. 2).