CN102306526B - Fe-Ni-Mo alloy soft magnetic material and manufacturing method thereof - Google Patents
Fe-Ni-Mo alloy soft magnetic material and manufacturing method thereof Download PDFInfo
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- CN102306526B CN102306526B CN201110131124XA CN201110131124A CN102306526B CN 102306526 B CN102306526 B CN 102306526B CN 201110131124X A CN201110131124X A CN 201110131124XA CN 201110131124 A CN201110131124 A CN 201110131124A CN 102306526 B CN102306526 B CN 102306526B
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Abstract
The invention relates to a manufacturing method for a magnetic object, in particular to a Fe-Ni-Mo alloy soft magnetic material and a manufacturing method thereof. The Fe-Ni-Mo alloy soft magnetic material is molded by the following components through compression: Fe-Ni-Mo powder which consists of 75 to 85 weight percent of Ni, 1 to 4 weight percent of Mo and the balance of Fe, phosphoric acid in an amount which is 0.6 to 3.2 percent based on the weight of the Fe-Ni-Mo powder and phenolic resin in an amount which is 0.2 to 1.1 percent based on the weight of the Fe-Ni-Mo powder, wherein the phosphoric acid is used for surface treatment for the Fe-Ni-Mo powder. The invention has the advantages that: 1, the manufacturing process and use equipment are simple; 2, due to the adoption of Fe-Ni-Mo 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-Mo alloy has high soft magnetic performance.
Description
Technical field
The present invention relates to the manufacturing approach of magnetic bodies, relate in particular to kind of a kind of iron nickel-molybdenum alloy soft magnetic material and manufacturing approach thereof.
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 molybdenum 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 molybdenum product.
Summary of the invention
An object of the present invention is to provide a kind of iron nickel-molybdenum alloy soft magnetic material, another object of the present invention provides the manufacturing approach of above-mentioned a kind of iron nickel-molybdenum alloy soft magnetic material.
In order to realize first above-mentioned purpose, the technical scheme below the present invention has adopted:
A kind of iron nickel-molybdenum alloy soft magnetic material, this iron nickel-molybdenum alloy magnetic material are by following component compression moulding:
(1) iron nickel molybdenum powder, wherein the content of nickel is 75%～85%, and the content of molybdenum is 1%～4%, and surplus is Fe;
(2) to iron nickel molybdenum powder surface-treated phosphoric acid, be 0.6%～3.2% of iron nickel-molybdenum alloy powder weight;
(3) phenolic resins is 0.2%～1.1% of iron nickel-molybdenum alloy powder weight.
As preferably, the content of nickel is 81% in the above-mentioned iron nickel molybdenum powder, and the content of molybdenum is 2%.。
As preferably, the weight of above-mentioned phosphoric acid is 0.9%～1.1% of iron nickel-molybdenum alloy powder weight.
As preferably, the addition of above-mentioned phenolic resins is 0.6%～0.8%.
In order to realize second above-mentioned purpose, the technical scheme below the present invention has adopted:
A kind of preparation method who prepares above-mentioned a kind of iron nickel-molybdenum alloy soft magnetic material, this method comprises the steps:
A) join powder: get an amount of iron nickel molybdenum powder, wherein the content of nickel is 75%～85%, and the content of molybdenum is 1%～4%, and surplus is Fe;
B) fry powder: the iron nickel molybdenum 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 0.6%～3.2% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.2%～1.1% 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-molybdenum alloy soft magnetic material.
As preferably, the weight percent concentration of above-mentioned phosphoric acid dilution is 0.6%～3.2%.
Adopt preparation method of the present invention can process the iron nickel molybdenum of μ=125; 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 molybdenum 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, the iron nickel-molybdenum alloy still can keep excellent soft magnet performance.Soft magnet nickel-molybdenum alloy of the present invention mainly is applicable to the Active PFC of Switching Power Supply, improves the utilance of exchange power with this.
Embodiment
Embodiment 1
Get 1000g iron nickel molybdenum powder; Wherein the content of nickel is 81%, and the content of molybdenum is 2%, and surplus is Fe; The roasting of the iron nickel molybdenum powder that makes fried when temperature reaches 100 ℃, to add 1000ml concentration be that 2.8% phosphoric acid diluent liquid is carried out surface treatment; Roasting is fried to drying, adds 6g phenolic resins (dilution adds), continues roasting again and fries 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 iron nickel-molybdenum alloy product at last and gets final product.Obtain 2 iron nickel molybdenum products (magnetic permeability μ=26) 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 iron nickel-molybdenum alloy powder weight according to the processing step of instance 1 is put in the iron nickel-molybdenum 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 molybdenum products (magnetic permeability μ=26) 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
Embodiment 3
Get 1000g iron nickel molybdenum powder; Wherein the content of nickel is 81%, and the content of molybdenum is 2%, and surplus is Fe; The roasting of the iron nickel molybdenum powder that makes fried when temperature reaches 120 ℃, to add 1000ml concentration be that 1.5% phosphoric acid diluent liquid is carried out surface treatment; Roasting is fried to drying, adds 4g phenolic resins (dilution adds), continues roasting again and fries 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 iron nickel-molybdenum alloy product at last and gets final product.Obtain 2 iron nickel molybdenum products (magnetic permeability μ=60) 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.
(2) 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 4
0.45% phenolic resins that will be equivalent to iron nickel-molybdenum alloy powder weight according to the processing step of instance 1 is put in the iron nickel-molybdenum 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 molybdenum products (magnetic permeability μ=60) of Φ 50.8/ Φ 31.8 * 13.5 (being that external diameter is that 50.8mm, internal diameter are 31.8mm, 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
Embodiment 5
Get 1000g iron nickel molybdenum powder; Wherein the content of nickel is 81%, and the content of molybdenum is 2%, and surplus is Fe; The roasting of the iron nickel molybdenum powder that makes fried when temperature reaches 120 ℃, to add 1000ml concentration be that 1.0% phosphoric acid diluent liquid is carried out surface treatment; Roasting is fried to drying, adds 7g phenolic resins (dilution adds), continues roasting again and fries 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 iron nickel-molybdenum alloy product at last and gets final product.Obtain 2 iron nickel molybdenum products (magnetic permeability μ=125) 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.
(3) 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 6
0.75% phenolic resins that will be equivalent to iron nickel-molybdenum alloy powder weight according to the processing step of instance 1 is put in the iron nickel-molybdenum 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 molybdenum products (magnetic permeability μ=125) 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 (4)
1. iron nickel-molybdenum alloy soft magnetic material is characterized in that this iron nickel-molybdenum alloy magnetic material is by following component compression moulding:
(1) iron nickel molybdenum powder, wherein the content of nickel is 75%～85%, and the content of molybdenum is 1%～4%, and surplus is Fe;
(2) to iron nickel molybdenum powder surface-treated phosphoric acid, be 0.6%～3.2% of iron nickel-molybdenum alloy powder weight;
(3) phenolic resins is 0.2%～1.1% of iron nickel-molybdenum alloy powder weight;
Above-mentioned iron nickel-molybdenum alloy magnetic preparation methods comprises the steps:
A) join powder: get an amount of iron nickel molybdenum powder, wherein the content of nickel is 75%～85%, and the content of molybdenum is 1%～4%, and surplus is Fe;
B) fry powder: the iron nickel molybdenum 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 0.6%～3.2% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.2%～1.1% 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-molybdenum alloy soft magnetic material.
2. according to the described a kind of iron nickel-molybdenum alloy soft magnetic material of claim 1, it is characterized in that: the content of nickel is 81% in the iron nickel molybdenum powder, and the content of molybdenum is 2%.
3. a preparation method who prepares claim 1 or 2 described a kind of iron nickel-molybdenum alloy soft magnetic materials is characterized in that this method comprises the steps:
A) join powder: get an amount of iron nickel molybdenum powder, wherein the content of nickel is 75%～85%, and the content of molybdenum is 1%～4%, and surplus is Fe;
B) fry powder: the iron nickel molybdenum 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 0.6%～3.2% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.2%～1.1% 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-molybdenum alloy soft magnetic material.
4. according to the preparation method of the described a kind of iron nickel-molybdenum alloy soft magnetic material of claim 3, it is characterized in that: the weight percent concentration of phosphoric acid dilution is 0.6%～3.2%.
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| CN201110131124XA CN102306526B (en) | 2011-05-19 | 2011-05-19 | Fe-Ni-Mo alloy soft magnetic material and manufacturing method thereof |
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| DE19803598C1 (en) * | 1998-01-30 | 1999-04-29 | Krupp Vdm Gmbh | Soft magnetic iron-nickel alloy for relay armatures and yokes |
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Owner name: ZHEJIANG KDM MAGNETIC POWER CORES CO., LTD. Free format text: FORMER NAME: ZHEJIANG KEDA MAGNETOELECTRICITY CO., LTD. |
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Address after: 313200 Zhejiang city of Huzhou province Deqing County Wukang Qu Yuan Road No. 525 Patentee after: Zhejiang east east Keda magnetoelectric Co., Ltd. Address before: 313200 Zhejiang city of Huzhou province Deqing County Wukang Qu Yuan Road No. 525 Patentee before: Zhejiang Keda Magnetoelectricity Co., Ltd. |