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Soft magnetic powder used for high frequency mould pressing inductor as well as preparation method thereof

A soft magnetic powder and high-frequency technology, which is applied in the manufacture of inductors/transformers/magnets, magnetic materials, circuits, etc., can solve the problems of lower saturation magnetization of amorphous soft magnetic materials and poor anti-DC bias characteristics, etc., and achieve improved saturation Magnetization characteristics, uniform distributed air gap, and the effect of increasing the current used

Inactive Publication Date: 2019-05-14
NINGBO YUNSHENG ELECTRONIC COMPONENTS TECHNOLOGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The soft magnetic powder prepared by amorphous soft magnetic material has a high resistivity as an inductor body, but a large amount of amorphous forming elements are added to its formula, which reduces the saturation magnetization of the amorphous soft magnetic material, and its anti-DC bias performance is average. bad

Method used

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  • Soft magnetic powder used for high frequency mould pressing inductor as well as preparation method thereof
  • Soft magnetic powder used for high frequency mould pressing inductor as well as preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] Embodiment 1: A soft magnetic powder material for high-frequency molded inductors, which is obtained by configuring the first main material, the second main material, and the auxiliary material. The first main material is the first metal soft magnetic alloy with a particle size of 1 μm to 10 μm Powder, the second main material is the second metal soft magnetic alloy powder with a particle size of 10 μm to 15 μm, the weight of the first metal soft magnetic alloy powder is 60% to 99% of the weight of the soft magnetic powder, and the second metal soft magnetic alloy The weight of the powder is 0%-40% of the weight of the soft magnetic powder, and the weight of the auxiliary material is 1%-20% of the weight of the soft magnetic powder.

[0029] In this embodiment, the auxiliary materials include a passivating agent, an insulating agent, a binder and a lubricant, the weight of the passivating agent is 1.5% to 90% of the weight of the auxiliary material, and the weight of the...

Embodiment 2

[0033] Embodiment 2: A soft magnetic powder material for high-frequency molded inductors, which is obtained by configuring the first main material, the second main material, and the auxiliary material. The first main material is the first metal soft magnetic alloy with a particle size of 1 μm to 10 μm Powder, the second main material is the second metal soft magnetic alloy powder with a particle size of 10 μm to 15 μm, the weight of the first metal soft magnetic alloy powder is 60% to 99% of the weight of the soft magnetic powder, and the second metal soft magnetic alloy The weight of the powder is 0%-40% of the weight of the soft magnetic powder, and the weight of the auxiliary material is 1%-20% of the weight of the soft magnetic powder.

[0034] In this embodiment, the auxiliary materials include a passivating agent, an insulating agent, a binder and a lubricant, the weight of the passivating agent is 1.5% to 90% of the weight of the auxiliary material, and the weight of the...

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Abstract

The invention discloses soft magnetic powder used for a high frequency mould pressing inductor as well as a preparation method thereof. The soft magnetic powder is prepared from a first main material,a second main material and an auxiliary material, the first main material is first metal soft magnetic alloy powder with the particle diameter of 1-10[mu]m, the second main material is second metal soft magnetic alloy powder with the particle diameter of 10-15[mu]m, the weight of the first metal soft magnetic alloy powder accounts for 60-99% of the weight of the soft magnetic powder, the weight of the second metal soft magnetic alloy powder accounts for 0-40% of the weight of the soft magnetic powder, and the weight of the auxiliary material accounts for 1-20% of the weight of the soft magnetic powder; and the soft material powder has the advantages of relatively high resistivity and relatively high saturation magnetization intensity, and usage frequency of the mould pressing inductor canbe improved.

Description

technical field [0001] The invention relates to a soft magnetic powder material for high-frequency molded inductors, in particular to a soft magnetic powder material for high-frequency molded inductors and a preparation method thereof. Background technique [0002] The main materials of the molded inductor include soft magnetic powder, coil and electrode pins. The coil and electrode pins are placed in the soft magnetic powder for compression molding, and then cured to obtain a molded inductor. The coil is located in the inductor body formed by the soft magnetic powder. Inside, the electrode pins are drawn from the inductor body to the outside. Molded inductors have the advantages of magnetic circuit closure, anti-electromagnetic interference, high installation density, and are especially suitable for SMT processes. They are mainly used as energy storage or filter devices in electronic circuits. At present, molded inductors have been widely used in electronic industries such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147H01F41/00B22F1/00C22C38/34C22C38/02C22C38/18C22C38/06C22C38/08C22C19/03
Inventor 梁金坤蔡平平徐文正
Owner NINGBO YUNSHENG ELECTRONIC COMPONENTS TECHNOLOGY CO LTD
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