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Magnetic core material with high Curie temperature

A technology of magnetic core material and Curie temperature, applied in the direction of magnetic materials, inorganic materials, magnetic objects, etc., can solve the problem of reducing the saturation magnetization of materials, and achieve the effect of reducing the molding pressure, high saturation magnetic induction, and magnetic enhancement.

Inactive Publication Date: 2017-01-04
ANHUI DEXIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the general organic or inorganic coating layer has non-magnetic characteristics. After compounding with metal magnetic particles, it will also reduce the saturation magnetization of the material to a certain extent. Loss while maintaining high density and saturation magnetization is the focus of current research

Method used

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Effect test

Embodiment Construction

[0013] A magnetic core material with a high Curie temperature, prepared from the following raw materials in parts by weight: hydroxyl iron powder 60, ferric oxide 10, manganese oxide 25, zinc oxide 21, silane coupling agent kh5704, silicone resin 5 , polyvinyl alcohol 1, sodium silicate 7, zirconia 0.4, potassium feldspar powder 1, magnesium carbide 0.5, appropriate amount of water;

[0014] The magnetic core material with a high Curie temperature is prepared by the following specific steps:

[0015] (1) Mix and ball-mill hydroxy iron powder, ferric oxide, manganese oxide, zinc oxide and silane coupling agent kh570 for 0.5h, then dissolve the silicone resin with 4 times the amount of acetone, and then add the above coupling magnetic powder to Stir in the organosilicon solution for 0.6h, then dry at 40°C for 1h and pulverize for later use;

[0016] (2) Mix the remaining materials except polyvinyl alcohol and sodium silicate, grind and disperse evenly, then anneal in vacuum at ...

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Abstract

The invention discloses a magnetic core material with a high Curie temperature. The magnetic core material is prepared from the following raw materials based on parts by weight: 60-65 parts of carbonyl iron powder, 10-15 parts of Fe2O3, 25-27 parts of manganese oxide, 21-23 parts of zinc oxide, 4-5 parts of silane coupling agent kh570, 5-7 parts of organic silicon resin, 1-2 parts of polyvinyl alcohol, 7-9 parts of sodium silicate, 0.4-0.5 part of zirconia, 1-1.1 part of potassium feldspar powder. 0.5-0.6 part of magnesium carbide and appropriate amount of water. The magnetic core material prepared according to the method has the characteristics of favorable low loss, high magnetic conductivity, high superposition, high Curie temperature and the like, heat generation is reduced, and the reliability is improved.

Description

technical field [0001] The invention relates to the technical field of ferrite materials, in particular to a magnetic core material with a high Curie temperature. Background technique [0002] Soft magnetic material is a kind of magnetic material with low coercive force and high magnetic permeability. Under the action of external magnetic field, soft magnetic material shows the characteristics of easy magnetization and easy demagnetization. Soft magnetic material is used as magnetoelectric conversion It is one of the important functional materials in the field, and has a wide range of applications in the fields of electronic equipment, communications and electrical appliances. With the popularization of digital TV sets and notebook computers, electronic equipment is becoming lighter, thinner, and miniaturized. This will inevitably reduce the size of the power supply, and put forward higher and stricter requirements for the power supply. Due to the characteristics of high sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/34H01F41/02
CPCH01F1/344H01F41/0246
Inventor 李马林
Owner ANHUI DEXIN ELECTRIC
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