A nickel-based ferrite core material for transformers

Abstract

The invention discloses a nickel-based ferrite magnetic core material for a transformer, which includes main materials and additives, and the main materials include: 57-63.6mol of Fe2O3, 17.0-22mol of manganese oxide, 10.2-16 mol of zinc oxide, 0.01-0.03 mol of stainless steel powder, 0.2-0.3 mol of barium sulfate, 0.01-0.02 mol of rare earth composite magnetically permeable powder; the additives include according to the weight ratio of the ferrite core material : Molybdenum powder of 80-90ppm, lithium nitride of 40-60ppm, magnesium hydroxide of 70-90ppm, the magnetic energy product of the rare earth composite magnetic conductive powder added to the ferrite magnetic core material of the present invention is high, magnetically stable, and the preparation method is simple , The finished product has the characteristics of high grain boundary resistivity, low porosity, large and uniform grains.

Description

technical field [0001] The invention mainly relates to the field of manufacture of oxide magnetic materials, in particular to a nickel-based ferrite core material for transformers. Background technique [0002] With the development of communication technology and digitalization of electronic products, new requirements are put forward for soft ferrite and components. High-performance and high-permeability magnetic cores are widely used in various basic materials for telecommunications and information, such as common-mode filters, Saturated inductors, current transformers, leakage protectors, insulation transformers, signal and pulse transformers and other fields have been widely used. Now the electronic communication industry needs ferrite cores with low core loss and high magnetic permeability to meet the miniaturization and high efficiency requirements of electrical equipment. The existing magnetic cores are difficult to meet the above requirements; [0003] The magnetic e...

AI Technical Summary

Problems solved by technology

Now the electronic communication industry needs ferrite cores with low core loss and high magnetic permeability to meet the miniaturization and high efficiency requirements of current electrical equipment, and the existing magnetic cores are difficult to meet the above requirements;