Wide frequency high magnetic conductive ratio low loss manganese zincium soft magnetic ferrite material and preparation thereof

Abstract

The invention relates to a soft magnet ferrite material, in particular to a broad-frequency high-magnet conductive rate low-wastage Mn-Zn soft magnet ferrite material as well as a preparation method for the material. The material consists of the main components of Mn-Zn series ferrite powder and the auxiliary components; the main components of the Mn-Zn series ferrite powder comprise Fe2O3, MnO and ZnO; wherein, Fe2O3 accounts for 68.8 to 70.2 percent of the total weight percentage, MnO accounts for 15 to 16.2 percent of the total weight percentage and ZnO accounts for 14.5 to 15.2 percent of the total weight percentage. The auxiliary components comprise Bi2O3, MoO, V2O5, CaCO3 and SnO2; the auxiliary components account for 0.8 to 1.8 percent of the total weight percentage. The preparation method of the material comprises the three steps of pre-processing, connecting multilevel sand milling in series and thermal processing, and can obtain the Mn-Zn soft magnet ferrite material which has the characteristics of broad frequency, high magnet conductive rate and low wastage.

Description

technical field [0001] The invention relates to a soft ferrite material, in particular to a manganese-zinc soft ferrite material with wide frequency, high magnetic permeability and low loss. The invention also relates to a preparation method of the soft ferrite material. Background technique [0002] Ferrite, also known as ferrite or magnetic porcelain, is a kind of non-metallic magnetic material, which is prepared from the composite oxide or orthoferrite of magnetic ferric oxide and one or more other metal oxides . Ferrite is magnetic, and it will have a higher magnetic permeability at high frequencies. Its resistivity is much larger than that of metal magnetic materials, and it also has higher dielectric properties. Magnetite FeO Fe 2 o 3 is the simplest ferrite. Generally, ferrite is limited to those elements that have d-layer or f-layer unpaired electrons, especially divalent metal ions that are close to the radius of divalent iron ions, such as manganese, zinc, copp...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a manganese-zinc soft magnetic ferrite material with high magnetic permeability and low loss in the wide frequency range of 10KHz to 200KHz, and to overcome the high energy consumption and low yield of the traditional grinding process The present invention also provides a method for preparing a manganese-zinc soft magnetic ferrite material that can improve the yield of ultrafine powder, save energy, and improve product quality

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