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Magnetic functional material

A technology of magnetic function and raw materials, applied in the field of magnetic functional materials, can solve the problems of low performance, and achieve the effects of reducing porosity, reducing hysteresis loss, and reducing magnetic domain rotation resistance

Inactive Publication Date: 2018-12-25
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a magnetic functional material, which solves the problem of low performance in traditional soft ferrite core materials

Method used

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preparation example Construction

[0027] Preparation of material A: C, Nd, Cd, Mn, S and Fe are compounded according to weight percentage, and C, Cd, Mn, Nd and Fe are pure substances (element content greater than 99.9%). S is added in the form of sulfur-iron master alloy. The S content of the sulfur-iron master alloy is 50%, and the rest is iron; first put the raw materials into the induction furnace, heat up and melt, and when the melting temperature reaches 1575°C, keep it for 20 minutes Then inject the alloy liquid into the tundish located above the atomizing nozzle, the alloy liquid flows out from the leak hole at the bottom of the tundish, and is atomized into fine droplets when it meets the high-speed airflow through the nozzle, and the atomized droplets are in the closed fog The alloy powder is rapidly solidified in the cylinder, the average particle size of the alloy powder is 9μm, the atomization gas pressure is 6.5MPa, the liquid metal fluid flow rate is 3kg / min, the alloy liquid injection temperatur...

Embodiment 1

[0033] Carry out the preparation of magnetic function material according to above-mentioned method, wherein, material A comprises following raw material composition by weight: C0.28%, Nd 3%, Cd 0.01%, Mn 21%, S 2.3% and balance Fe; Material B comprises following Raw material components in parts by weight: Fe 1%, Cd 0.01%, Nd 3%, Si 0.02%, Sb 11% and balance Sn; material C includes the following raw material components in parts by weight: PbO 2 0.1%, Al 2 o 3 0.1%, CaO 0.1%, CdO 0.1%, K 2 O 8% and balance SiO 2 ; Material D includes the following raw material components in parts by weight: PbO 2 0.1%, Mn 2 o 3 16%, CdO 0.1%, Nd 2 o 3 0.1% and balance Fe 2 o 3 ; The weight ratio of material A, material B, material C and material D is 0.1:0.005:0.005:10; the weight ratio of material B and material C is 1:1.

Embodiment 2

[0035] Carry out the preparation of magnetic function material according to the above-mentioned method, wherein, material A comprises following raw material composition by weight: C0.32%, Nd 4%, Cd 0.04%, Mn 23%, S 2.5% and balance Fe; Material B comprises following Raw material components in parts by weight: Fe 3%, Cd 0.03%, Nd 5%, Si 0.05%, Sb 13% and balance Sn; material C includes the following raw material components in parts by weight: PbO 2 0.2%, Al 2 o 3 0.3%, CaO 0.3%, CdO 0.3%, K 2 O 10% and balance SiO 2 ; Material D includes the following raw material components in parts by weight: PbO 2 0.3%, Mn 2 o 3 17%, CdO 0.3%, Nd 2 o 3 0.3% and balance Fe 2 o 3 ; The weight ratio of material A, material B, material C and material D is 0.3:0.015:0.015:10; the weight ratio of material B and material C is 1:1.

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Abstract

A magnetic functional material comprises a material A, a material B, a material C and a material D; The raw materials of the material A include C, Nd, Cd, Mn, S and Fe. The raw materials of the material B include Fe, Cd, Nd, Si, Sb and Sn. The raw materials of the material C include: PbO2, Al2O3, CaO, CdO, K2O and SiO2; The raw materials of the material D include PbO2, Mn2O3, CdO, Nd2O3 and Fe2O3.The problem of low performance of traditional soft ferrite core material is solved.

Description

technical field [0001] The invention relates to the field of electronic materials, in particular to a magnetic functional material. Background technique [0002] As an important basic functional material, soft ferrite materials are widely used in electronic industries such as communications, sensors, audio-visual equipment, filters, transformers, etc., opening up a broad market for the application of soft ferrites; the patent number is CN201510839838.4 discloses a preparation method of high-performance and high-power soft ferrite core material, the soft ferrite core material is made of Fe 2 o 3 , NiO, ZnO, CuO, Co 2 o 3 , Mn 3 o 4 、GeO 2 、Eu 2 o 3 , GaAs, CaB 2 o 4 、Mo 2 o 3 , PbO, Bi 2 o 3 , V 2 o 3 、LaFeO 3 , SrCO 3 and other raw materials; the material of the present invention is made through steps such as primary batching, primary ball milling, primary sintering, secondary batching, secondary ball milling, compression molding, and secondary sintering. ...

Claims

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Application Information

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IPC IPC(8): H01F1/36C04B35/36
Inventor 赵浩峰张椿英郑建华柴知章苗思忠申学成
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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