Preparation method of high-permeability magnetic glue

The invention discloses a preparation method of high-permeability magnetic glue, and relates to the technical field of magnetic permeability glue.The preparation method comprises the following steps that S1, iron, chromium and silicon of iron-silicon-chromium-gallium-indium-nitrogen alloy magnetic powder raw materials are sequentially added into a medium-frequency induction furnace, and alloy liquid is obtained through protection smelting of vacuumizing and nitrogen injection; the preparation method comprises the following steps: sequentially adding iron, chromium and silicon into a medium-frequency induction furnace, sealing a furnace body, heating a crucible of the medium-frequency induction furnace, vacuumizing the furnace body to 1-100Pa, filling nitrogen to 100-102KPa, adding gallium and indium when the raw materials in the induction furnace are completely molten and the temperature reaches 1640-1660 DEG C, standing and deslagging to obtain alloy liquid, and carrying out heat treatment on the alloy liqui