HARD TAPE MAGNETIC CONDUCTOR FOR TRANSFORMER AND METHOD OF MAKING SAME Russian patent published in 2014 - IPC H01F27/25 H01F3/04 H01F41/02 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, magnetic conductors of electrical transformers, having a multilayer structure made of amorphous or nanocrystalline tape, and methods for production thereof. The hard tape magnetic conductor for a transformer is in form of a multilayer structure, each layer of which is formed from a predefined number of magnetic amorphous strips with an off-set gap in between, on the length of the magnetic conductor. The magnetic amorphous layer has a given geometric shape and has one lock-on connection formed by the beginning and the end of said layer. The lock-on connection is in form of a finger joint, e.g. dovetail. The method of making a hard tape magnetic conductor from an amorphous magnetic alloy involves cutting strips, treatment thereof with an adhesive compound and layering while offsetting the strips relative each other on the length of the magnetic conductor. The strips are cut by passing amorphous tape, for example through scissors, for example treated with a carbon-containing adhesive material and placed on an assembly table. A magnetic conductor with a winding is formed and the fold line and the lock-on connection are exposed to pulsed and/or high-speed heating. The amorphous magnetic strips are coated with a carbon-containing adhesive material by spraying in liquid form and/or superimposing an adhesive tape.

EFFECT: high quality of the magnetic conductor by reducing magnetic losses and increasing induction therein and easy manufacture.

3 cl, 4 dwg, 1 tbl