A ferrosilicon magnetic core with high permeability and a preparation method thereof

A high magnetic permeability, iron-silicon technology, applied in the direction of inductance/transformer/magnet manufacturing, magnetic materials, magnetic objects, etc., can solve the problem of unsatisfactory exchange power utilization and achieve low power loss and high energy storage capacity , the effect of high quality factor

Inactive Publication Date: 2018-12-21
德清鑫晨粉末科技有限公司
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Problems solved by technology

Although there are iron-silicon alloy soft magnetic materials on the market, they are still not ideal in terms of adapting to the high demand for exchange power utilization. However, the high saturation magnetic induction of the magnetic core, high DC bias capability, high energy storage capacity and comparative High magnetic permeability, low loss and other characteristics put forward higher requirements

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  • A ferrosilicon magnetic core with high permeability and a preparation method thereof

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the examples, the following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0019] Using 96% iron and 4% silicon to make iron-silicon powder through traditional gas atomization powder making method. Take 1000g of the above-mentioned iron-silicon powder and roast until the temperature reaches 100°C, add 0.4% phosphoric acid dilution solution with a weight of 0.4% of the iron-silicon alloy powder weight for surface treatment, mix well and then continue roasting until dry; press the iron-silicon powder , the molding pressure is 20 tons / cm 2 Carry out heat treatment on the molded magnetic core, control the temperature at about 750 ℃, and pass nitrogen gas into the furnace as a protection, and the time is 120 minutes; finally, apply epoxy resin paint on the surface of the material to obtain an outer diameter of 26.9 mm,...

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Abstract

The invention provides a ferrosilicon magnetic core with high permeability and a preparation method thereof. The ferrosilicon alloy soft magnetic material is composed of ferrosilicon powder, wherein the weight content of Si is 2% to 6% and the balance Fe. The ferrosilicon magnetic core of the invention has high permeability, high quality factor, low power loss value, high energy storage capacity,high DC bias capacity and high saturation magnetic induction strength.

Description

technical field [0001] The invention relates to a soft magnetic material and a preparation method thereof, in particular to a high-permeability iron-silicon magnetic core and a preparation method thereof. Background technique [0002] Nowadays, people pay more and more attention to the utilization of energy, and the power exchange between various power appliances is also gradually paid attention to. In particular, iron-silicon alloy soft magnetic materials with high magnetic permeability and low loss are actively researched and developed by domestic and foreign soft magnetic enterprises because of their great application potential. Although there are iron-silicon alloy soft magnetic materials currently on the market, they are still not ideal in terms of adapting to the high demand for exchange power utilization. However, for the high saturation magnetic induction of the magnetic core, high DC bias capability, high energy storage capacity and comparative High magnetic permea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147H01F41/02
Inventor 沈晨懂聂军武姚国忠
Owner 德清鑫晨粉末科技有限公司
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