CN102314981B - Ferrum-nickel-molybdenum alloy soft magnetic material with magnetic permeability mu being 125 and manufacturing method thereof - Google Patents
Ferrum-nickel-molybdenum alloy soft magnetic material with magnetic permeability mu being 125 and manufacturing method thereof Download PDFInfo
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- CN102314981B CN102314981B CN2011101300457A CN201110130045A CN102314981B CN 102314981 B CN102314981 B CN 102314981B CN 2011101300457 A CN2011101300457 A CN 2011101300457A CN 201110130045 A CN201110130045 A CN 201110130045A CN 102314981 B CN102314981 B CN 102314981B
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Abstract
The invention relates to a manufacturing method of a magnetic object, in particular to a ferrum-nickel-molybdenum alloy soft magnetic material with magnetic permeability mu being 125 and a manufacturing method thereof. The ferrum-nickel-molybdenum alloy soft magnetic material with magnetic permeability mu being 125 is press-formed by the following components: ferrum-nickel-molybdenum powder, phosphoric acid for processing the surface of the ferrum-nickel-molybdenum powder and phenolic resin, wherein the ferrum-nickel-molybdenum powder contains 75-85% of nickel, 1-4% of molybdenum and the balance of Fe; the phosphoric acid is 0.8-1.15% of the ferrum-nickel-molybdenum alloy powder by weight; and the phenolic resin is 0.5-1.0% of the ferrum-nickel-molybdenum 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-nickel-molybdenum 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-nickel-molybdenum 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 iron nickel-molybdenum alloy soft magnetic material and the manufacturing approach thereof of kind of magnetic permeability μ=125.
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 the iron nickel-molybdenum alloy soft magnetic material of a kind of magnetic permeability μ=125, another object of the present invention provides the manufacturing approach of the iron nickel-molybdenum alloy soft magnetic material of above-mentioned magnetic permeability μ=125.
In order to realize first above-mentioned purpose, the technical scheme below the present invention has adopted:
The iron nickel-molybdenum alloy soft magnetic material of magnetic permeability μ=125, 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 0.8%～1.15% of iron nickel-molybdenum alloy powder weight;
(3) phenolic resins is 0.5%～1.0% 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 the iron nickel-molybdenum alloy soft magnetic material of above-mentioned magnetic permeability μ=125, 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 0.8%～1.15% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.5%～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 iron nickel-molybdenum alloy soft magnetic material.
As preferably, the weight percent concentration of above-mentioned phosphoric acid dilution is 0.8%～1.15%.
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.
Provided the soft magnet performance result of iron nickel-molybdenum alloy in the following table, shown that it has excellent soft magnet performance.
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 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 N
2Buchholz protection is handled, and 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 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 table 1
Table 1
(2) power loss test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as table 2
Table 2
(3) magnetism testing
Copper wire adopts Φ 0.8mm, and coil turn is 30 circles, and frequency is 100kHz, its magnetic parameter such as table 3
Table 3
Embodiment 2
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 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 table 4
Table 4
(2) power loss test
Copper wire adopts Φ 0.5mm, and coil turn is 26 circles, its magnetic parameter such as table 5
Table 5
(3) magnetism testing
Copper wire adopts Φ 0.8mm, and coil turn is 30 circles, and frequency is 100kHz, its magnetic parameter such as table 6
Table 6
Claims (6)
1. the iron nickel-molybdenum alloy soft magnetic material of magnetic permeability μ=125 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 0.8%～1.15% of iron nickel-molybdenum alloy powder weight;
(3) phenolic resins is 0.5%～1.0% of iron nickel-molybdenum alloy powder weight;
The preparation method of above-mentioned iron nickel-molybdenum alloy soft magnetic material 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 0.8%～1.15% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.5%～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 iron nickel-molybdenum alloy soft magnetic material.
2. according to the iron nickel-molybdenum alloy soft magnetic material of the described magnetic permeability μ of claim 1=125, 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. according to the iron nickel-molybdenum alloy soft magnetic material of the described magnetic permeability μ of claim 1=125, it is characterized in that: the weight of phosphoric acid is 0.9%～1.1% of iron nickel-molybdenum alloy powder weight.
4. according to the iron nickel-molybdenum alloy soft magnetic material of the described magnetic permeability μ of claim 1=125, it is characterized in that: the addition of phenolic resins is 0.6%～0.8%.
5. a preparation method who prepares the iron nickel-molybdenum alloy soft magnetic material of the described magnetic permeability μ of any claim of claim 1～4=125 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 0.8%～1.15% of iron nickel-molybdenum alloy powder weight; Roasting is fried to drying; Add again with respect to iron nickel-molybdenum alloy powder weight 0.5%～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 iron nickel-molybdenum alloy soft magnetic material.
6. according to the preparation method of the iron nickel-molybdenum alloy soft magnetic material of the described magnetic permeability μ of claim 5=125, it is characterized in that: the weight percent concentration of phosphoric acid dilution is 0.8%～1.15%.
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| CN102982991B (en) * | 2012-03-05 | 2015-04-22 | 宁波市普盛磁电科技有限公司 | Preparation method for silicone iron cores with magnetic conductivity of 125 |
| CN105280321B (en) * | 2014-07-22 | 2017-08-29 | 德清森腾电子科技有限公司 | A kind of magnetic material |
| CN106169363A (en) * | 2016-08-24 | 2016-11-30 | 宁波华众和创工业设计有限公司 | A kind of common mode inductance applying high stability molybdenum perm magnetic core and manufacture method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002502118A (en) * | 1998-01-30 | 2002-01-22 | クルップ ファオ デー エム ゲゼルシャフト ミット ベシュレンテル ハフツング | Soft magnetic material with low coercivity, high permeability and improved corrosion resistance |
| CN101579737A (en) * | 2008-12-15 | 2009-11-18 | 杨振龙 | Preparation method of organic coated iron-dust core |
| CN101886192A (en) * | 2010-06-23 | 2010-11-17 | 北京科技大学 | Method for preparing high-performance iron nickel magnetically soft alloy by using powder metallurgy process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002502118A (en) * | 1998-01-30 | 2002-01-22 | クルップ ファオ デー エム ゲゼルシャフト ミット ベシュレンテル ハフツング | Soft magnetic material with low coercivity, high permeability and improved corrosion resistance |
| CN101579737A (en) * | 2008-12-15 | 2009-11-18 | 杨振龙 | Preparation method of organic coated iron-dust core |
| CN101886192A (en) * | 2010-06-23 | 2010-11-17 | 北京科技大学 | Method for preparing high-performance iron nickel magnetically soft alloy by using powder metallurgy process |
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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. |