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Ni-Zn soft magnetic ferrite material for transformer iron core

A soft ferrite, transformer core technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve the problem that the transformer core cannot guarantee the stable formability and performance, achieve excellent mixing uniformity, reduce the magnetic core The effect of excellent loss and dispersion performance

Inactive Publication Date: 2017-02-08
ANHUI HUALIN MAGNETIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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. However, the transformer cores currently used cannot guarantee good formability. And the performance is stable, and the resistivity needs to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of Ni-Zn soft magnetic ferrite material that the present invention proposes is used for transformer iron core, and its raw material comprises main material, auxiliary material and modified wood pulp; Main material comprises: iron oxide 40 parts, manganese oxide 40 parts, 20 parts of zinc oxide, 25 parts of nickel oxide; based on the total mass of main materials, auxiliary materials include: 500 ppm silicon dioxide, 500 ppm tantalum boride, 220 ppm molybdenum trioxide, 360 ppm cobalt oxide, 200 ppm bismuth oxide, five Vanadium oxide 380ppm, tantalum oxide 240ppm, calcium oxide 260ppm, niobium oxide 200ppm, calcium carbonate 240ppm, manganese carbonate 200ppm, barium carbonate 280ppm; the weight ratio of main material and modified wood pulp is 100:5.

Embodiment 2

[0017] A kind of Ni-Zn soft magnetic ferrite material that the present invention proposes is used for transformer core, and its raw material comprises main material, auxiliary material and modified wood pulp; Main material comprises: iron oxide 50 parts, manganese oxide 30 parts, 30 parts of zinc oxide, 15 parts of nickel oxide; based on the total mass of main materials, auxiliary materials include: silicon dioxide 700ppm, tantalum boride 300ppm, molybdenum trioxide 280ppm, cobalt oxide 300ppm, bismuth oxide 220ppm, five Vanadium oxide 300ppm, tantalum oxide 360ppm, calcium oxide 200ppm, niobium oxide 280ppm, calcium carbonate 160ppm, manganese carbonate 300ppm, barium carbonate 200ppm; the weight ratio of main material and modified wood pulp is 100:7.

[0018] The modified wood pulp is prepared by the following process: mix absolute ethanol, toluene, fatty alcohol polyoxyethylene ether, and wood pulp evenly, add sodium hydroxide, propylene oxide, and methyl chloride, mix and s...

Embodiment 3

[0020] A kind of Ni-Zn soft magnetic ferrite material that the present invention proposes is used for transformer core, and its raw material comprises main material, auxiliary material and modified wood pulp; Main material comprises: iron oxide 42 parts, manganese oxide 37 parts, 24 parts of zinc oxide, 22 parts of nickel oxide; based on the total mass of main materials, auxiliary materials include: silicon dioxide 550ppm, tantalum boride 450ppm, molybdenum trioxide 240ppm, cobalt oxide 340ppm, bismuth oxide 210ppm, five Vanadium oxide 320ppm, tantalum oxide 320ppm, calcium oxide 220ppm, niobium oxide 260ppm, calcium carbonate 180ppm, manganese carbonate 280ppm, barium carbonate 220ppm; the weight ratio of main material and modified wood pulp is 100:6.5.

[0021] The modified wood pulp is prepared by the following process: by weight, 5 parts of absolute ethanol, 40 parts of toluene, 2 parts of fatty alcohol polyoxyethylene ether, and 18 parts of wood pulp are evenly mixed, and ...

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Abstract

The invention discloses a Ni-Zn soft magnetic ferrite material for transformer iron core. Raw materials of the Ni-Zn soft magnetic ferrite material contain main materials, auxiliary materials and modified wood pulp. The main materials contain, by molar weight, 40-50 parts of iron oxide, 30-40 parts of manganese oxide, 20-30 parts of zinc oxide and 15-25 parts of nickel oxide. With total mass of the main materials as the reference, the auxiliary materials contain 500-700 ppm of silica, 300-500 ppm of tantalum boride, 220-280 ppm of molybdenum trioxide, 300-360 ppm of cobalt oxide, 200-220 ppm of bismuth oxide, 300-380 ppm of vanadic anhydride, 240-360 ppm of tantalum oxide, 200-260 ppm of calcium oxide, 200-280 ppm of niobium oxide, 160-240 ppm of calcium carbonate, 200-300 ppm of manganese carbonate and 200-280 ppm of barium carbonate. Weight ratio of the main materials to the modified wood pulp is 100: 5-7.

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 iron cores. 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. However, the transformer c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/38C04B35/632H01F1/37
CPCC04B35/2666C04B35/632C04B2235/3208C04B2235/3215C04B2235/3239C04B2235/3251C04B2235/3256C04B2235/3262C04B2235/3275C04B2235/3279C04B2235/3284C04B2235/3298C04B2235/3418C04B2235/3813H01F1/344H01F1/37
Inventor 董鸿梅张学舟牟大兵
Owner ANHUI HUALIN MAGNETIC TECH
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