CHOKE Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: amorphous alloys, that have high induction of saturation and positive constant of magnetostriction are used as magnetic material for core of choke. Based on iron alloys have components with following ratio: one or several components from group, that has Mn, Cr, Mo, W, V, Nb, Ta, Ti, Zr, Hf in amount of 0.1 15 at% one or several components from group, that has Si, B, C, P in amount of 15 30 at% or one or several components from group, that has Si, B, C, P in amount of 15 30 at% Co and/or Ni in amount of 0.1 30 at. one or several components from group, that has Si, B, C, P in amount of 15 30 at. Volumetric share of crystal phase in amorphous belt is not to exceed 50 Close to optimal is volumetric share of crystalline grains 0.1 10 and in the case crystals are to be distributed in surface layer of amorphous belt of magnetic alloy. During localization of crystals in surface layer of amorphous belt there are surface tensions, that in much effective way smooth curve of magnetization with preservation of high level of magnetic permeability. EFFECT: choke is effective in interference-suppressing filters. 6 cl, 1 dwg, 2 tbl