Ni-Zn soft magnetic ferrite used for transformer U-type part

Abstract

The invention discloses a Ni-Zn soft magnetic ferrite used for a transformer U-type part. The Ni-Zn soft magnetic ferrite is prepared from main materials and auxiliary materials; the main materials comprise, by mole, 25-35 parts of ferric oxide, 15-28 parts of manganese oxide, 10-20 parts of zinc oxide, 8-16 parts of nickel protoxide; based on the total mass of the raw materials, the auxiliary materials comprise 200-500 ppm of silicon dioxide, 100-300 ppm of lanthanum oxide, 100-180 ppm of lead dioxide, 200-300 ppm of niobium carbide, 100-150 ppm of tungsten trioxide, 150-250 ppm of vanadium pentoxide, 150-250 parts of tantalum oxide, 100-180 ppm of zirconium oxide, 120-200 ppm of bismuth trioxide, 50-200 ppm of calcium carbonate, 120-250 ppm of lithium carbonate and 140-250 ppm of barium carbonate. The Ni-Zn soft magnetic ferrite is small in grain size, high in resistivity, high in initial permeability and low in magnetic core loss.

Description

technical field [0001] The invention relates to the technical field of soft ferrite, in particular to a Ni-Zn soft ferrite material used for transformer U-shaped parts. Background technique [0002] The application of soft magnetic materials in industry began at the end of the 19th century, with the rise of electric power and telecommunication technology, and its application range is extremely wide. Soft magnetic materials are not only used in the fields of home appliances, information technology, automobiles and other supporting fields, but more importantly, soft magnetic materials, as the main raw materials for the production of electronic components, have brought a steady stream of demand for them. With the development of the electronics industry and the expansion of application fields, the requirements for magnetic materials are getting higher and higher, and the classification requirements for material properties are more detailed and specialized. At present, the magnet...

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Problems solved by technology

With the development of the electronics industry and the expansion of application fields, the requirements for magnetic materials are getting higher and higher, and the classification requirements for material properties are more detailed and specialized. At present, the magnetic core materials used for transformer U-shaped parts Good formability and poor stability, and the resistivity needs to be improved urgently