CN102306529B - Fe-Ni alloy soft magnetic material with magnetic permeability mu of 26 and manufacturing method for Fe-Ni alloy soft magnetic material - Google Patents
Fe-Ni alloy soft magnetic material with magnetic permeability mu of 26 and manufacturing method for Fe-Ni alloy soft magnetic material Download PDFInfo
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- CN102306529B CN102306529B CN2011101337733A CN201110133773A CN102306529B CN 102306529 B CN102306529 B CN 102306529B CN 2011101337733 A CN2011101337733 A CN 2011101337733A CN 201110133773 A CN201110133773 A CN 201110133773A CN 102306529 B CN102306529 B CN 102306529B
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Abstract
The invention relates to a manufacturing method for a magnetic object, in particular to a Fe-Ni alloy soft magnetic material with magnetic permeability mu of 26 and a manufacturing method for the Fe-Ni alloy soft magnetic material. The Fe-Ni alloy soft magnetic material with magnetic permeability mu of 26 is molded by the following components through compression: Fe-Ni powder which consists of 40 to 60 weight percent of Ni and the balance of Fe, phosphoric acid in an amount which is 3.0 to 3.2 percent based on the weight of the Fe-Ni powder and phenolic resin in an amount which is 0.3 to 0.8 percent based on the weight of Fe-Ni powder, wherein the phosphoric acid is used for surface treatment for the Fe-Ni powder. The invention has the advantages that: 1, the manufacturing process and use equipment are simple; 2, due to the adoption of Fe-Ni powder with low price, the production cost is greatly reduced; 3, products manufactured by the method have high inductance, relative high quality factors and low power loss value; and 4, under the condition of relative high temperature, Fe-Ni alloy has high soft magnetic performance.
Description
Technical field
The present invention relates to the manufacturing approach of magnetic bodies, relate in particular to the iron-nickel alloy soft magnetic material and the manufacturing approach thereof of kind of magnetic permeability μ=26.
Background technology
At present, along with the reform of information technology, various switch power converters; Inverters etc. are in the extensive application of communications 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 communication, military industry.The iron nickel soft magnetic material of high resistivity high magnetic permeability will have huge application potential in these electronic products, 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 nickel product.
Summary of the invention
An object of the present invention is to provide the iron-nickel alloy soft magnetic material of a kind of magnetic permeability μ=26, another object of the present invention provides the manufacturing approach of the iron-nickel alloy soft magnetic material of above-mentioned magnetic permeability μ=26.
In order to realize first above-mentioned purpose, the technical scheme below the present invention has adopted:
The iron-nickel alloy soft magnetic material of magnetic permeability μ=26, this iron-nickel alloy soft magnetic material are by following component compression moulding:
(1) iron nickel by powder, wherein the content of nickel is 40～60%, surplus is Fe;
(2) to iron nickel by powder surface-treated phosphoric acid, be 3.0%～3.2% of Fe-Ni Alloy Powder weight;
(3) phenolic resins is 0.3%～0.8% of Fe-Ni Alloy Powder weight.
As preferably, the content of nickel is 50% in the above-mentioned iron nickel by powder.
As preferably, the weight of above-mentioned phosphoric acid is 3.1% of Fe-Ni Alloy Powder weight.。
As preferably, the addition of above-mentioned phenolic resins is 0.5%～0.7%.
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 iron-nickel alloy soft magnetic material of above-mentioned magnetic permeability μ=26, this method comprises the steps:
A) join powder: get an amount of iron nickel by powder, wherein the weight content of nickel is 40%～60%, and surplus is Fe;
B) fry powder: the iron nickel powder 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 3.0%～3.2% of Fe-Ni Alloy Powder weight; Roasting is fried to drying; Add again with respect to Fe-Ni Alloy Powder weight 0.3%～0.8% 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 iron-nickel alloy soft magnetic material.
As preferably, the weight percent concentration of above-mentioned phosphoric acid dilution is 3.0%～3.2%.
Adopt preparation method of the present invention can process the iron nickel of μ=26; 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 nickel by 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, iron-nickel alloy still can keep excellent soft magnet performance.Soft magnet nickel 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 iron-nickel alloy in the following table, shown that it has excellent soft magnet performance.
Embodiment
Embodiment 1
Get 1000g iron nickel by powder; Wherein the content of nickel is 50%; Surplus is Fe, the roasting of the iron nickel powder that makes is fried when temperature reaches 100 ℃, to add 1000ml concentration be that 3.1% phosphoric acid diluent liquid is carried out surface treatment, and roasting is fried to drying; Add 6g 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 N
2Buchholz protection is handled, and the time is 150 minutes, paints the surface that is coated in the iron-nickel alloy product at last and gets final product.Obtain 2 iron nickel 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
0.65% phenolic resins that will be equivalent to Fe-Ni Alloy Powder weight according to the processing step of instance 1 is put in the Fe-Ni Alloy 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 nickel 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
Claims (6)
1. the iron-nickel alloy soft magnetic material of magnetic permeability μ=26 is characterized in that this iron-nickel alloy soft magnetic material is by following component compression moulding:
(1) iron nickel by powder, wherein the content of nickel is 40%～60%, surplus is Fe;
(2) to iron nickel by powder surface-treated phosphoric acid, be 3.0%～3.2% of Fe-Ni Alloy Powder weight;
(3) phenolic resins is 0.3%～0.8% of Fe-Ni Alloy Powder weight;
The preparation method of above-mentioned iron-nickel alloy soft magnetic material comprises the steps:
A) join powder: get an amount of iron nickel by powder, wherein the weight content of nickel is 40%～60%, and surplus is Fe;
B) fry powder: the iron nickel powder 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 3.0%～3.2% of Fe-Ni Alloy Powder weight; Roasting is fried to drying; Add again with respect to Fe-Ni Alloy Powder weight 0.3%～0.8% 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 iron-nickel alloy soft magnetic material.
2. according to the iron-nickel alloy soft magnetic material of the described magnetic permeability μ of claim 1=26, it is characterized in that: the content of nickel is 50% in the iron nickel by powder.
3. according to the iron-nickel alloy soft magnetic material of the described magnetic permeability μ of claim 1=26, it is characterized in that: the weight of phosphoric acid is 3.1% of Fe-Ni Alloy Powder weight.
4. according to the iron-nickel alloy soft magnetic material of the described magnetic permeability μ of claim 1=26, it is characterized in that: the addition of phenolic resins is 0.5%～0.7%.
5. a preparation method who prepares the iron-nickel alloy soft magnetic material of the described magnetic permeability μ of any claim of claim 1～4=26 is characterized in that this method comprises the steps:
A) join powder: get an amount of iron nickel by powder, wherein the weight content of nickel is 40%～60%, and surplus is Fe;
B) fry powder: the iron nickel powder 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 3.0%～3.2% of Fe-Ni Alloy Powder weight; Roasting is fried to drying; Add again with respect to Fe-Ni Alloy Powder weight 0.3%～0.8% 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 iron-nickel alloy soft magnetic material.
6. according to the preparation method of the iron-nickel alloy soft magnetic material of the described magnetic permeability μ of claim 5=26, it is characterized in that: the weight percent concentration of phosphoric acid dilution is 3.0%～3.2%.
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| CN2011101337733A CN102306529B (en) | 2011-05-23 | 2011-05-23 | Fe-Ni alloy soft magnetic material with magnetic permeability mu of 26 and manufacturing method for Fe-Ni alloy soft magnetic material |
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| CN86101368B (en) * | 1986-03-03 | 1988-07-27 | 东北工学院 | A kind of processing method of raising 55% Ni-Fe magneticalloy performance |
| DE19803598C1 (en) * | 1998-01-30 | 1999-04-29 | Krupp Vdm Gmbh | Soft magnetic iron-nickel alloy for relay armatures and yokes |
| CN101579737A (en) * | 2008-12-15 | 2009-11-18 | 杨振龙 | Preparation method of organic coated iron-dust core |
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