CN102314983A - Ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 and manufacturing method thereof - Google Patents
Ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 and manufacturing method thereof Download PDFInfo
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- CN102314983A CN102314983A CN201110130154A CN201110130154A CN102314983A CN 102314983 A CN102314983 A CN 102314983A CN 201110130154 A CN201110130154 A CN 201110130154A CN 201110130154 A CN201110130154 A CN 201110130154A CN 102314983 A CN102314983 A CN 102314983A
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Abstract
The invention relates to a manufacturing method of a magnetic object, in particular to a ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 and a manufacturing method thereof. The ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 is press-formed by the following components: ferrum-silicon powder, phosphoric acid for processing the surface of the ferrum-silicon powder and phenolic resin, wherein the ferrum-silicon powder contains 2-8% by weight of Si and the balance of Fe; the phosphoric acid is 0.8-1.2% of the ferrum-silicon alloy powder by weight; and the phenolic resin is 0.6-1.0% of the ferrum-silicon alloy powder by weight. The invention has the following advantages: 1. the manufacturing process is simple, and the used equipment is simple; 2. the ferrum-silicon powder with low price is adopted, thus greatly lowering the production cost; 3. the product manufactured by the method has good inductance, higher quality factor and lower power loss value; and 4. the ferrum-silicon alloy can still maintain excellent soft magnetic performance at higher temperature.
Description
Technical field
The present invention relates to the manufacturing approach of magnetic bodies, relate in particular to the ferro-silicium soft magnetic material and the manufacturing approach thereof of kind of magnetic permeability μ=90.
Background technology
At present, along with the reform of energy technology, various switch power converters; Inverters etc. are in the extensive application of energy industry; The utilance of its exchange power more and more obtains people's attention, and they press for a core material that can improve the exchange power utilization, particularly apply to high-power; In the electronic product of big electric current, low-loss core material more and more receives the welcome of energy industry.The iron silicon soft magnetic material of high resistivity high magnetic permeability will have huge application potential in energy industry, at present domestic and international soft magnetism producer is all at a kind of high resistivity of active development, high magnetic permeability, low-loss iron silicon product.
Summary of the invention
An object of the present invention is to provide the ferro-silicium soft magnetic material of a kind of magnetic permeability μ=90, another object of the present invention provides the manufacturing approach of the ferro-silicium soft magnetic material of above-mentioned magnetic permeability μ=90.
In order to realize first above-mentioned purpose, the technical scheme below the present invention has adopted:
The ferro-silicium soft magnetic material of magnetic permeability μ=90, this ferro-silicium soft magnetic material are by following component compression moulding:
(1) iron Si powder, wherein the weight content of Si is 2%～8%, surplus is Fe;
(2) to iron Si powder surface-treated phosphoric acid, be 0.8%～1.2% of ferro-silicium powder weight;
(3) phenolic resins is 0.6%～1.0% of ferro-silicium powder weight.
As preferably, the content of Si is 6.5% in the above-mentioned iron Si powder.
As preferably, the weight of above-mentioned phosphoric acid is 0.9%～1.1% of ferro-silicium powder weight.
As preferably, the addition of above-mentioned phenolic resins is 0.7%～0.9%.
In order to realize second above-mentioned purpose, the technical scheme below the present invention has adopted:
A kind of preparation method who prepares the ferro-silicium soft magnetic material of above-mentioned magnetic permeability μ=90, this method comprises the steps:
A) join powder: get an amount of iron Si powder, wherein the weight content of Si is 2%～8%, and surplus is Fe;
B) fry powder: the iron silica flour roasting that makes is fried when temperature reaches 50 ℃～150 ℃, add the phosphoric acid dilution and carry out surface treatment; The weight of phosphoric acid is 0.8%～1.2% of ferro-silicium powder weight; Roasting is fried to drying; Add again with respect to ferro-silicium powder weight 0.6%～1.0% phenolic resins, continue roasting again and fry to dry;
C) compression moulding: pressure is 15～26 tons/cm
2
D) heat treatment: feed hydrogen or nitrogen in the heat treated stove, temperature is controlled between 600 ℃～900 ℃, and the time of heat-treating is 60～150 minutes;
E) face coat: adopt epoxy resin paint to be coated in the surface of ferro-silicium soft magnetic material.
As preferably, the weight percent concentration of above-mentioned phosphoric acid dilution is 0.8%～1.2%.
Adopt preparation method of the present invention can process the iron silicon of μ=90; Its ring-like specification has (Φ are an external diameter, and unit is mm) such as Φ 6.99, Φ 7.24, Φ 8.51, Φ 10.29, Φ 10.29, Φ 10.80, Φ 11.89, Φ 13.46, Φ 17.40, Φ 18.03, Φ 21.10, Φ 23.62, Φ 24.30, Φ 27.70, Φ 33.83, Φ 35.10, Φ 36.63, Φ 40.72, Φ 44.00, Φ 47.63, Φ 51.69, Φ 58.00, Φ 78.90.
The present invention has the following advantages: 1, manufacture craft is simple, and use equipment is simple; 2, the iron Si powder that the employing valency is low, production cost reduces greatly; 3, the product that adopts this kind method to make has good inductance value, higher quality factor, lower power loss value; 4, under higher temperature conditions, ferro-silicium still can keep excellent soft magnet performance.Soft magnet silicon alloy of the present invention mainly is applicable to the Active PFC of Switching Power Supply, improves the utilance of exchange power with this.
Provided the soft magnet performance result of ferro-silicium in the following table, shown that it has excellent soft magnet performance.
Embodiment
Embodiment 1
Get 1000g iron Si powder; Wherein the content of Si is 6.5%; Surplus is Fe, the roasting of the iron silica flour that makes is fried when temperature reaches 100 ℃, to add 1000ml concentration be that 1.0% phosphoric acid diluent liquid is carried out surface treatment, and roasting is fried to drying; Add 8g phenolic resins (dilution adds), continue roasting again and fry to dry; Alloy powder is put into (this instance 1 adopts the moulds of external diameter Φ=26.6 specifications) in the mould of required specification, with 20 tons/cm
2Pressure compression moulding, 850 ± 3 ℃ of soaking zone temperature controls, and carry out the N2 Buchholz protection and handle, the time is 150 minutes, paints the surface that is coated in the ferro-silicium product at last and gets final product.Obtain 2 iron silicon products of Φ 26.6/ Φ 14.8 * 10.6 (being that external diameter is that 26.6mm, internal diameter are 14.8mm, height 10.6mm) specification.
(1) f, L, Q test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as following table
(2) power loss test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as following table
(3) magnetism testing
Copper wire adopts Φ 0.8mm, and coil turn is 30 circles, and frequency is 100kHz, its magnetic parameter such as following table
Embodiment 2
0.85% phenolic resins that will be equivalent to the ferro-silicium powder weight according to the processing step of instance 1 is put in the ferro-silicium powder, and the compacting specification is Φ 50.8 (Φ is an external diameter, and unit is mm), and all the other conditions are constant.Obtain 2 iron silicon products of Φ 50.8/ Φ 31.5 * 13.5 (being that external diameter is that 50.8mm, internal diameter are 31.5mm, height 13.5mm) specification.
(1) f, L, Q test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as following table
(2) power loss test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as following table
(3) magnetism testing
Copper wire adopts Φ 0.8mm, and coil turn is 30 circles, and frequency is 100kHz, its magnetic parameter such as following table following table
Claims (6)
1. the ferro-silicium soft magnetic material of magnetic permeability μ=90 is characterized in that this ferro-silicium soft magnetic material is by following component compression moulding:
(1) iron Si powder, wherein the weight content of Si is 2%～8%, surplus is Fe;
(2) to iron Si powder surface-treated phosphoric acid, be 0.8%～1.2% of ferro-silicium powder weight;
(3) phenolic resins is 0.6%～1.0% of ferro-silicium powder weight.
2. the ferro-silicium soft magnetic material of magnetic permeability μ according to claim 1=90 is characterized in that: the content of Si is 6.5% in the iron Si powder.
3. the ferro-silicium soft magnetic material of magnetic permeability μ according to claim 1=90 is characterized in that: the weight of phosphoric acid is 0.9%～1.1% of ferro-silicium powder weight.
4. the ferro-silicium soft magnetic material of magnetic permeability μ according to claim 1=90 is characterized in that: the addition of phenolic resins is 0.7%～0.9%.
5. a preparation method who prepares the ferro-silicium soft magnetic material of the described magnetic permeability μ of any claim of claim 1～4=90 is characterized in that this method comprises the steps:
A) join powder: get an amount of iron Si powder, wherein the weight content of Si is 2%～8%, and surplus is Fe;
B) fry powder: the iron silica flour roasting that makes is fried when temperature reaches 50 ℃～150 ℃, add the phosphoric acid dilution and carry out surface treatment; The weight of phosphoric acid is 0.8%～1.2% of ferro-silicium powder weight; Roasting is fried to drying; Add again with respect to ferro-silicium powder weight 0.6%～1.0% phenolic resins, continue roasting again and fry to dry;
C) compression moulding: pressure is 15～26 tons/cm
2
D) heat treatment: feed hydrogen or nitrogen in the heat treated stove, temperature is controlled between 600 ℃～900 ℃, and the time of heat-treating is 60～150 minutes;
E) face coat: adopt epoxy resin paint to be coated in the surface of ferro-silicium soft magnetic material.
6. the preparation method of the ferro-silicium soft magnetic material of magnetic permeability μ according to claim 5=90 is characterized in that: the weight percent concentration of phosphoric acid dilution is 0.9%～1.1%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110130154A CN102314983A (en) | 2011-05-19 | 2011-05-19 | Ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 and manufacturing method thereof |
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| CN201110130154A CN102314983A (en) | 2011-05-19 | 2011-05-19 | Ferrum-silicon alloy soft magnetic material with magnetic permeability mu being 90 and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623121A (en) * | 2012-04-05 | 2012-08-01 | 天通控股股份有限公司 | Method for manufacturing iron-silicon material and Mu-90 iron-silicon magnetic powder core |
| CN109065316A (en) * | 2018-08-08 | 2018-12-21 | 德清鑫晨粉末科技有限公司 | A kind of iron silicon magnetic core of high magnetic permeability and preparation method thereof |
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| JP2000030924A (en) * | 1998-07-10 | 2000-01-28 | Daido Steel Co Ltd | Soft magnetic alloy powder dust core |
| CN1414577A (en) * | 2002-11-19 | 2003-04-30 | 李延军 | Soft magnetic iron core press formed from powdered iron in automobile ignition coil and its manufacturing method |
| CN101226806A (en) * | 2007-11-29 | 2008-07-23 | 祁峰 | Method of preparing iron silicon aluminum magnetic powder core with magnetic-conductivity [Mu] of 26 |
| CN101572151A (en) * | 2009-02-19 | 2009-11-04 | 祁峰 | Method for manufacturing iron-silicon alloy composite magnetic powder core with magnetic conductivity mu being equal to 60 |
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2011
- 2011-05-19 CN CN201110130154A patent/CN102314983A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000030924A (en) * | 1998-07-10 | 2000-01-28 | Daido Steel Co Ltd | Soft magnetic alloy powder dust core |
| CN1414577A (en) * | 2002-11-19 | 2003-04-30 | 李延军 | Soft magnetic iron core press formed from powdered iron in automobile ignition coil and its manufacturing method |
| CN101226806A (en) * | 2007-11-29 | 2008-07-23 | 祁峰 | Method of preparing iron silicon aluminum magnetic powder core with magnetic-conductivity [Mu] of 26 |
| CN101572151A (en) * | 2009-02-19 | 2009-11-04 | 祁峰 | Method for manufacturing iron-silicon alloy composite magnetic powder core with magnetic conductivity mu being equal to 60 |
Non-Patent Citations (1)
| Title |
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| 邹联隆等: "纯铁磁粉芯的磁特性研究", 《磁性材料及器件》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623121A (en) * | 2012-04-05 | 2012-08-01 | 天通控股股份有限公司 | Method for manufacturing iron-silicon material and Mu-90 iron-silicon magnetic powder core |
| CN102623121B (en) * | 2012-04-05 | 2015-01-07 | 天通控股股份有限公司 | Method for manufacturing iron-silicon material and Mu-90 iron-silicon magnetic powder core |
| CN109065316A (en) * | 2018-08-08 | 2018-12-21 | 德清鑫晨粉末科技有限公司 | A kind of iron silicon magnetic core of high magnetic permeability and preparation method thereof |
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Application publication date: 20120111 |