Magnetic core material to which rare earth element is added

A technology of magnetic core materials and rare earth elements, applied in the direction of inorganic material magnetism, electrical components, transformer/inductor parts, etc. The effect of material properties

Inactive Publication Date: 2015-11-25
TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECH
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  • Abstract
  • Description
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  • 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 th

Method used

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Embodiment Construction

[0013] A magnetic core material added with rare earth elements, prepared from the following raw materials in parts by weight: 60 parts by weight of iron hydroxide powder, 10 parts of ferric oxide, 25 parts of manganese oxide, 21 parts of zinc oxide, silane coupling agent kh5704, 5 parts of silicone resin, Polyvinyl alcohol 1, sodium silicate 7, carbon-coated lanthanum oxide 0.6, barium sulfate 0.5, bentonite 0.5, appropriate amount of water;

[0014] The magnetic core material added with rare earth elements 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 s...

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Abstract

The invention discloses a magnetic core material to which a rare earth element is added. The magnetic core material is prepared from, by weight, 60-65 parts of hydroxy iron powder, 10-15 parts of iron trioxide, 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, 0.6-0.7 part of carbon-coated lanthanum oxide, 0.5-0.6 part of barium sulfate, 0.5-0.6 part of bentonite and a proper amount of water. The prepared magnetic core material has the high initial permeability, good temperature stability, small magnetic hystersis losses, and is good in applicability in various fields and worthy of being popularized.

Description

technical field [0001] The invention relates to the technical field of ferrite materials, in particular to a magnetic core material added with rare earth elements. 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 s...

Claims

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Application Information

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IPC IPC(8): H01F1/33H01F27/255B22F1/02
Inventor 徐杰周福林朱志强张文军张文献张德金曾性儒王玉志祝开峰董文龙
Owner TIANCHANG CITY ZHAOTIAN MAGNETOELECTRICITY TECH
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