METHOD OF PRODUCING MAGNETIC AND ELECTROMAGNETIC SCREEN Russian patent published in 2017 - IPC G12B17/02 

FIELD: technological processes.

SUBSTANCE: tapes are laid between two polymer dielectric films heated to a temperature sufficient for double-sided adhesion of a polymer dielectric film with a metal tape, and subjected to joint moulding. The metal strip is subjected to a preliminary heat treatment at temperatures of 300-380°C for 5 to 90 minutes to create a positive saturation magnetostriction state due to the formation of a nanocrystalline structure, while during moulding a tensile stress of 1-100 MPa is applied to the strip, and immediately after moulding, the metal-polymeric material is cooled from the moulding temperature down to a temperature of 10-20°C below room temperature, held for 10-60 minutes and after holding the external tensile stress, applied to the tape, is simultaneously relieved and the material is heated up to room temperature.

EFFECT: increase in the magnetic permeability of the material and the screening coefficient.

2 cl, 1 tbl