CN104190945A - Method for preparing amorphous metal soft magnetic powder core - Google Patents
Method for preparing amorphous metal soft magnetic powder core Download PDFInfo
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- CN104190945A CN104190945A CN201410394382.0A CN201410394382A CN104190945A CN 104190945 A CN104190945 A CN 104190945A CN 201410394382 A CN201410394382 A CN 201410394382A CN 104190945 A CN104190945 A CN 104190945A
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Abstract
The invention discloses a method for preparing an amorphous metal soft magnetic powder core. First powder passing through -100 to 200 meshes and second powder passing through -200 to +300 meshes are obtained by screening amorphous metal soft magnetic powder; the first powder and the second powder are mixed to obtain powder, the weight percentage of the first powder in the powder is 60-90 percent, and the weight percentage of the second powder in the powder is 10-40 percent; after an amorphous metal soft magnetic powder core blank is obtained by pressing the powder, isostatic pressing processing is conducted on the amorphous metal soft magnetic powder core blank, the amorphous metal soft magnetic powder core blank obtained after the isostatic pressing processing is put into a heat treatment furnace, and stress relief annealing processing is conducted in the air or nitrogen or inert gas atmosphere. The method has the advantages that the acting force on the amorphous metal soft magnetic powder core in all directions is large and good in evenness under the isostatic pressing condition, the density of the amorphous metal soft magnetic powder core is greatly improved, the distribution evenness is good, and therefore the amorphous metal soft magnetic powder core has the high effective magnetic conductivity, the high inductance and the high quality coefficient.
Description
Technical field
The present invention relates to a kind of powder core technology of preparing, especially relate to a kind of preparation method of amorphous metal soft magnetic-powder core.
Background technology
Powder core, as a kind of important magnetic functional material, has application prospect very widely in the fields such as various inductance components, power transformer.Traditional powder core mainly contains ferrocart core, Fe-Si-Al magnetic core, iron nickel powder core and molybdenum permalloy (MPP) powder core etc.Ferrocart core low price, but its high frequency characteristics is poor; Fe-Si-Al magnetic core has low-down core loss, and frequency characteristic is better, but the direct current biasing ability of Fe-Si-Al magnetic core under larger electric current is poor, in larger current field, uses and is limited by very large; Iron nickel powder core has splendid frequency characteristic in the frequency range of 1MHz left and right, and loss is lower, and in existing metal magnetic powder core, iron nickel powder core has higher direct current biasing ability, product combination property is better, but in iron nickel powder core, contain the high metallic element nickel of price, production cost is too high; MPP powder core has equally splendid frequency characteristic in the frequency range of 1MHz left and right, that in existing various metal magnetic powder core, core loss is minimum, but the direct current biasing ability of MPP powder core is general, MPP powder core also contains the precious metal such as nickel, molybdenum element, price comparison costliness simultaneously.Thus, traditional powder core, due to the impact of its performance or cost, is limited by very large when use.
Amorphous metal soft magnetic-powder core is as the novel powder core of one, and with respect to traditional powder core, its good combination property and cost are lower, receive increasing concern.The preparation method of traditional amorphous metal soft magnetic-powder core generally includes following steps: (1) prepares amorphous powder; (2) amorphous powder is sieved, obtain powder; (3) powder is carried out to insulating wrapped granulation; (4) compressing; (5) heat treatment.
In the preparation method of above-mentioned amorphous metal soft magnetic-powder core, powder is as the core material of amorphous metal soft magnetic-powder core, the quality of its performance directly affects the performance of amorphous metal powder core, and the quality of properties of powder is closely related with powder particulate component, size, distribution and manufacturing process etc.Powder adopts traditional compressing technique, although compacting initial stage pressure is larger, amorphous metal powder core density is higher, its magnetic conductivity also increases thereupon, but, in the time that pressing pressure acquires a certain degree, because amorphous metal powder core powder has very high hardness, amorphous metal powder core density will can not raise again, in the time that pressing pressure is too high, can there is damage to a certain degree to pressing die, and can damage the insulating wrapped of amorphous metal powder core, cause breaking of its insulating barrier, thereby reduce insulation effect.In addition, poor through the amorphous metal soft magnetic-powder core compactness that tradition is compressing, and also larger to the density gradient at center from amorphous metal powder core outside.Hence one can see that, the preparation method of existing amorphous metal soft magnetic-powder core is owing to being subject to the restriction of compressing technique, lower and the skewness of the density of the amorphous metal powder core preparing, finally cause the Effective permeability of amorphous metal powder core lower, inductance value L is on the low side and quality factor q is less.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of amorphous metal soft magnetic-powder core, in this preparation method, amorphous metal soft magnetic powder is obtained to the particle diameter two kinds of different powder that distribute after the screening of the sieve by different sieve meshes and be mixed to get powder, after amorphous metal soft magnetic-powder core green compact, wait static pressure processing compressing obtaining, and be to carry out stress relief annealing processing under 300-450 DEG C of condition in temperature, obtain the amorphous metal soft magnetic-powder core that density is high and be evenly distributed.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of preparation method of amorphous metal soft magnetic-powder core, comprises the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement;
2. the amorphous alloy ribbon of embrittlement is carried out to fragmentation, obtain amorphous metal soft magnetic powder;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in described powder, the weight percent content of the first powder is 60-90%, and the weight percent content of the second powder is 10-40%;
5. powder is carried out to passivation insulation processing;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 300-450 DEG C, and temperature retention time is 0.5-3h.
Described passivation insulation processing is specially: the phosphoric acid solution that is 1-5% with mass concentration by powder mixes, and the part by weight of phosphoric acid solution and powder is: 1:20～1:5, obtains the powder after passivation insulation processing after oven dry.
Described coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein said organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of described organic binder bond is the 0.2-10% of the powder quality after passivation insulation processing; Described inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of described inorganic binder is the 0.5-10% of the powder quality after passivation insulation processing; Described lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of described lubricant is the 0.1-5% of the powder quality after passivation insulation processing.
Described compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1600-2000MPa, pressurize 1-10s.
The described static pressure processing procedure that waits is specially: be that the inferior static pressure of 200MPa condition is processed 5-10s by amorphous metal soft magnetic-powder core green compact at pressure.
Compared with prior art, the invention has the advantages that by amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes, the first powder and the second powder are mixed to get to powder, and in powder, the weight percent content of the first powder is 60-90%, and the weight percent content of the second powder is 10-40%, after powder pressing moulding is obtained to amorphous metal soft magnetic-powder core green compact, amorphous metal soft magnetic-powder core green compact are waited to static pressure processing, isostatic pressing process is that amorphous metal soft magnetic-powder core green compact are positioned in the closed container of filling medium, progressively each surface of amorphous metal soft magnetic-powder core green compact is applied to equal pressure by compression system, thereby make its density that increases amorphous metal soft magnetic-powder core green compact in the situation that not changing face shaping improve its performance, subsequently green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 300-450 DEG C, temperature retention time is 0.5-3h, owing to waiting under hydrostatic pressure condition and good uniformity large to the active force of amorphous metal soft magnetic-powder core all directions, the density of amorphous metal soft magnetic-powder core is greatly improved and distributing homogeneity good, thereby amorphous metal soft magnetic-powder core has higher Effective permeability, inductance value and quality factor, the amorphous metal soft magnetic-powder core of preparing with respect to existing method, density has improved 2.5% left and right, inductance value has improved 12.4% left and right, quality factor have improved 20.0% left and right, Effective permeability improves 15.5% left and right, combination property is greatly improved,
When passivation insulation processing is specially: the phosphoric acid solution that is 1-5% with mass concentration by powder mixes, the part by weight of phosphoric acid solution and powder is: 1:20～1:5, while obtaining the powder after passivation insulation processing after oven dry, be conducive to powder particle surface and form the good insulating barrier of insulation effect;
When coated granulation is specially: add successively organic binder bond, inorganic binder and lubricant to be coated granulation in the powder after passivation insulation processing, wherein organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of organic binder bond is the 0.2-10% of the powder quality after passivation insulation processing; Inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of inorganic binder is the 0.5-10% of the powder quality after passivation insulation processing; Lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, when the addition of lubricant is the 0.1-5% of the powder quality after passivation insulation processing, frictional force between powder particle reduces, thereby has increased the mobility of powder;
When compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1600-2000MPa, when pressurize 1-10s, can tentatively prepare the amorphous metal soft magnetic-powder core green compact with certain density, meet the requirement that waits static pressure processing;
When waiting static pressure processing procedure to be specially: be that the inferior static pressure of 200MPa condition is while processing 5-10s by amorphous metal soft magnetic-powder core green compact at pressure, further significantly increase the density of amorphous metal soft magnetic-powder core green compact, ensured that preparation has the primary condition of higher magnetic permcability, inductance value and quality factor amorphous metal soft magnetic-powder core.
Brief description of the drawings
The SEM shape appearance figure of the Fe base amorphous metal soft magnetic powder that in Fig. 1 the present invention, employing machinery mill and airflow milling composite breaking method obtain;
The comparison diagram of Fig. 2 embodiments of the invention one and amorphous metal soft magnetic-powder core density of the prior art;
The comparison diagram of Fig. 3 embodiments of the invention one and amorphous metal soft magnetic-powder core magnetic conductivity of the prior art;
The comparison diagram of Fig. 4 embodiments of the invention one and amorphous metal soft magnetic-powder core inductance value of the prior art;
The comparison diagram of Fig. 5 embodiments of the invention one and amorphous metal soft magnetic-powder core quality factor of the prior art.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment mono-: a kind of preparation method of amorphous metal soft magnetic-powder core, comprises the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement; Amorphous alloy ribbon is chosen the Fe base noncrystal alloy strip that single-roller rapid quenching with quenching makes, and the composition of Fe base noncrystal alloy strip is Fe
78si
9b
13(at%);
2. the Fe base noncrystal alloy strip of embrittlement is adopted machinery mill and airflow milling composite breaking method to carry out fragmentation, obtain Fe base amorphous metal soft magnetic powder, the SEM shape appearance figure of Fe base amorphous metal soft magnetic powder as shown in Figure 1;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in powder, the weight percent content of the first powder is that the weight percent content of 90%, the second powder is 10%;
5. powder is carried out in phosphoric acid solution to passivation insulation processing, detailed process is: the phosphoric acid solution that is 5% with mass concentration by powder mixes, and the part by weight of phosphoric acid solution and powder is: 1:10, obtains the powder after passivation insulation processing after drying at 55 DEG C;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 430 DEG C, and temperature retention time is 1h.
In the present embodiment, coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of organic binder bond is 3% of powder quality after passivation insulation processing; Inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of inorganic binder is 5% of powder quality after passivation insulation processing; Lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of lubricant is 0.5% of powder quality after passivation insulation processing.
In the present embodiment, compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1800MPa, pressurize 6s.
In the present embodiment, wait static pressure processing procedure to be specially: to be that the inferior static pressure of 200MPa condition is processed 10s by amorphous metal soft magnetic-powder core green compact at pressure.
The amorphous metal soft magnetic-powder core that the method for the present embodiment is prepared carries out performance test under room temperature, 100kHz condition, and contrast with the performance of amorphous metal soft magnetic-powder core of the prior art, wherein as shown in Figure 2, the magnetic conductivity comparison diagram of the present embodiment and amorphous metal soft magnetic-powder core of the prior art as shown in Figure 3 for the density comparison diagram of the present embodiment and amorphous metal soft magnetic-powder core of the prior art; The inductance value comparison diagram of the present embodiment and amorphous metal soft magnetic-powder core of the prior art as shown in Figure 4; The quality factor comparison diagram of the present embodiment and amorphous metal soft magnetic-powder core of the prior art as shown in Figure 5.
From Fig. 2 to Fig. 5, can find out, the amorphous metal soft magnetic-powder core that the amorphous metal soft magnetic-powder core that adopts the method for the present embodiment to prepare prepares with respect to prior art, its density, Effective permeability, inductance value and quality factor are all greatly improved, and combination property is better.
Embodiment bis-: a kind of preparation method of amorphous metal soft magnetic-powder core, comprises the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement; Amorphous alloy ribbon is chosen the Fe base noncrystal alloy strip that single-roller rapid quenching with quenching makes, and the composition of Fe base noncrystal alloy strip is Fe
78si
9b
13(at%);
2. the Fe base noncrystal alloy strip of embrittlement is adopted machinery mill and airflow milling composite breaking method to carry out fragmentation, obtain Fe base amorphous metal soft magnetic powder, the SEM shape appearance figure of Fe base amorphous metal soft magnetic powder as shown in Figure 1;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in powder, the weight percent content of the first powder is that the weight percent content of 80%, the second powder is 20%;
5. powder is carried out in phosphoric acid solution to passivation insulation processing, detailed process is: the phosphoric acid solution that is 5% with mass concentration by powder mixes, and the part by weight of phosphoric acid solution and powder is: 1:10, obtains the powder after passivation insulation processing after drying at 55 DEG C;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 420 DEG C, and temperature retention time is 1.5h.
In the present embodiment, coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of organic binder bond is 3% of powder quality after passivation insulation processing; Inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of inorganic binder is 5% of powder quality after passivation insulation processing; Lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of lubricant is 0.5% of powder quality after passivation insulation processing.
In the present embodiment, compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1800MPa, pressurize 6s.
In the present embodiment, wait static pressure processing procedure to be specially: to be that the inferior static pressure of 200MPa condition is processed 10s by amorphous metal soft magnetic-powder core green compact at pressure.
Embodiment tri-: a kind of preparation method of amorphous metal soft magnetic-powder core, comprises the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement; Amorphous alloy ribbon is chosen the Fe base noncrystal alloy strip that single-roller rapid quenching with quenching makes, and the composition of Fe base noncrystal alloy strip is Fe
78si
9b
13(at%);
2. the Fe base noncrystal alloy strip of embrittlement is adopted machinery mill and airflow milling composite breaking method to carry out fragmentation, obtain Fe base amorphous metal soft magnetic powder, the SEM shape appearance figure of Fe base amorphous metal soft magnetic powder as shown in Figure 1;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in powder, the weight percent content of the first powder is that the weight percent content of 70%, the second powder is 30%;
5. powder is carried out in phosphoric acid solution to passivation insulation processing, detailed process is: the phosphoric acid solution that is 5% with mass concentration by powder mixes, and the part by weight of phosphoric acid solution and powder is: 1:15, obtains the powder after passivation insulation processing after drying at 55 DEG C;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 400 DEG C, and temperature retention time is 1.5h.
In the present embodiment, coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of organic binder bond is 4% of powder quality after passivation insulation processing; Inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of inorganic binder is 5% of powder quality after passivation insulation processing; Lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of lubricant is 0.5% of powder quality after passivation insulation processing.
In the present embodiment, compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1800MPa, pressurize 6s.
In the present embodiment, wait static pressure processing procedure to be specially: to be that the inferior static pressure of 200MPa condition is processed 10s by amorphous metal soft magnetic-powder core green compact at pressure.
Embodiment tetra-: a kind of preparation method of amorphous metal soft magnetic-powder core, comprises the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement; Amorphous alloy ribbon is chosen the Fe base noncrystal alloy strip that single-roller rapid quenching with quenching makes, and the composition of Fe base noncrystal alloy strip is Fe
78si
9b
13(at%);
2. the Fe base noncrystal alloy strip of embrittlement is adopted machinery mill and airflow milling composite breaking method to carry out fragmentation, obtain Fe base amorphous metal soft magnetic powder, the SEM shape appearance figure of Fe base amorphous metal soft magnetic powder as shown in Figure 1;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in powder, the weight percent content of the first powder is that the weight percent content of 60%, the second powder is 40%;
5. powder is carried out in phosphoric acid solution to passivation insulation processing, detailed process is: the phosphoric acid solution that is 5% with mass concentration by powder mixes, and the part by weight of phosphoric acid solution and powder is: 1:15, obtains the powder after passivation insulation processing after drying at 55 DEG C;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 430 DEG C, and temperature retention time is 1h.
In the present embodiment, coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of organic binder bond is 5% of powder quality after passivation insulation processing; Inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of inorganic binder is 6% of powder quality after passivation insulation processing; Lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of lubricant is 0.5% of powder quality after passivation insulation processing.
In the present embodiment, compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1800MPa, pressurize 6s.
In the present embodiment, wait static pressure processing procedure to be specially: to be that the inferior static pressure of 200MPa condition is processed 10s by amorphous metal soft magnetic-powder core green compact at pressure.
The amorphous metal soft magnetic-powder core that the method for embodiment bis-to embodiment tetra-prepares carries out performance test under room temperature, 100kHz condition, and the performance boost effect that its performance boost effect and embodiment mono-reflect is basic identical.In sum, preparation method of the present invention compared with prior art, has greatly improved the performance of product, has improved the quality of product, has significantly strengthened the competitiveness of product.
Claims (5)
1. a preparation method for amorphous metal soft magnetic-powder core, is characterized in that comprising the following steps:
1. amorphous alloy ribbon is heat-treated, make its embrittlement;
2. the amorphous alloy ribbon of embrittlement is carried out to fragmentation, obtain amorphous metal soft magnetic powder;
3. amorphous metal soft magnetic powder is sieved, passed through the first powder of-100～+ 200 sieve meshes and pass through the second powder of-200～+ 300 sieve meshes;
4. the first powder and the second powder are mixed to get to powder, in described powder, the weight percent content of the first powder is 60-90%, and the weight percent content of the second powder is 10-40%;
5. powder is carried out to passivation insulation processing;
6. the powder after passivation insulation processing is coated to granulation;
7. the powder pressing after coated granulation is shaped to amorphous metal soft magnetic-powder core green compact;
8. amorphous metal soft magnetic-powder core green compact are waited to static pressure processing;
9. green compact such as amorphous metal soft magnetic-powder core after treatment such as static pressure such as grade are put into heat-treatment furnace, in air or nitrogen or inert gas atmosphere, carry out stress relief annealing processing, temperature is 300-450 DEG C, and temperature retention time is 0.5-3h.
2. the preparation method of a kind of amorphous metal soft magnetic-powder core according to claim 1, it is characterized in that described passivation insulation processing is specially: the phosphoric acid solution that is 1-5% with mass concentration by powder mixes, the part by weight of phosphoric acid solution and powder is: 1:20～1:5, obtains the powder after passivation insulation processing after oven dry.
3. the preparation method of a kind of amorphous metal soft magnetic-powder core according to claim 1, it is characterized in that described coated granulation is specially: in the powder after passivation insulation processing, add successively organic binder bond, inorganic binder and lubricant to be coated granulation, wherein said organic binder bond is selected from any one or a few the mixture in epoxy resin, phenolic resins and polyimides, and the addition of described organic binder bond is the 0.2-10% of the powder quality after passivation insulation processing; Described inorganic binder is selected from SiO
2, B
2o
3and P
2o
5in any one or a few mixture, the addition of described inorganic binder is the 0.5-10% of the powder quality after passivation insulation processing; Described lubricant is selected from any one or a few the mixture in zinc stearate, dolomol and calcium stearate, and the addition of described lubricant is the 0.1-5% of the powder quality after passivation insulation processing.
4. the preparation method of a kind of amorphous metal soft magnetic-powder core according to claim 1, is characterized in that described compressing process is specially: by room temperature compressing the powder after coated granulation, pressing pressure is 1600-2000MPa, pressurize 1-10s.
5. the preparation method of a kind of amorphous metal soft magnetic-powder core according to claim 1, is characterized in that the described static pressure processing procedure that waits is specially: be that the inferior static pressure of 200MPa condition is processed 5-10s by amorphous metal soft magnetic-powder core green compact at pressure.
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| CN111640570A (en) * | 2020-06-12 | 2020-09-08 | 安徽昭田电子科技有限公司 | Preparation method of iron-based soft magnetic core with high temperature resistance and high surface resistance |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050028889A1 (en) * | 2003-08-06 | 2005-02-10 | Song Yong Sul | Method for making Fe-based amorphous metal powders and method for making soft magnetic core using the same |
| CN103219119A (en) * | 2013-04-18 | 2013-07-24 | 安泰科技股份有限公司 | Preparation method of mu90 high-permeability Fe-based amorphous magnetic powder core |
| CN103500643A (en) * | 2013-09-29 | 2014-01-08 | 青岛云路新能源科技有限公司 | Method for modified silicon iron boron soft magnetic powder core with magnetic conductivity of 90 |
| CN103730224A (en) * | 2013-12-27 | 2014-04-16 | 青岛云路新能源科技有限公司 | Preparation method for iron-based amorphous magnetic powder core with ultrahigh magnetic conductivity |
| CN103730225A (en) * | 2014-01-10 | 2014-04-16 | 广东工业大学 | Method for preparing amorphous soft magnetic powder core |
| CN103745790A (en) * | 2014-01-15 | 2014-04-23 | 中国计量学院 | Mixed soft magnetic powder for metal magnetic powder core |
-
2014
- 2014-08-12 CN CN201410394382.0A patent/CN104190945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050028889A1 (en) * | 2003-08-06 | 2005-02-10 | Song Yong Sul | Method for making Fe-based amorphous metal powders and method for making soft magnetic core using the same |
| CN103219119A (en) * | 2013-04-18 | 2013-07-24 | 安泰科技股份有限公司 | Preparation method of mu90 high-permeability Fe-based amorphous magnetic powder core |
| CN103500643A (en) * | 2013-09-29 | 2014-01-08 | 青岛云路新能源科技有限公司 | Method for modified silicon iron boron soft magnetic powder core with magnetic conductivity of 90 |
| CN103730224A (en) * | 2013-12-27 | 2014-04-16 | 青岛云路新能源科技有限公司 | Preparation method for iron-based amorphous magnetic powder core with ultrahigh magnetic conductivity |
| CN103730225A (en) * | 2014-01-10 | 2014-04-16 | 广东工业大学 | Method for preparing amorphous soft magnetic powder core |
| CN103745790A (en) * | 2014-01-15 | 2014-04-23 | 中国计量学院 | Mixed soft magnetic powder for metal magnetic powder core |
Cited By (11)
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|---|---|---|---|---|
| CN106158216A (en) * | 2015-03-26 | 2016-11-23 | 南通华兴磁性材料有限公司 | The formula of a kind of permanent magnetism material and preparation technology thereof |
| CN104952583A (en) * | 2015-04-22 | 2015-09-30 | 横店集团东磁股份有限公司 | Preparing method of amorphous meal soft magnetic powder core |
| CN105206369A (en) * | 2015-10-12 | 2015-12-30 | 北京工业大学 | High-temperature-resistant anisotropy bonding NdFeB magnet and preparation method thereof |
| CN105206369B (en) * | 2015-10-12 | 2017-11-14 | 北京工业大学 | A kind of high temperature resistant anisotropic bonded NdFeB magnet and preparation method thereof |
| CN106890999A (en) * | 2015-12-21 | 2017-06-27 | 北京中科三环高技术股份有限公司 | A kind of preparation method of amorphous or nano-crystal soft-magnetic powder core |
| CN106890999B (en) * | 2015-12-21 | 2019-06-28 | 北京中科三环高技术股份有限公司 | A kind of preparation method of amorphous or nano-crystal soft-magnetic powder core |
| CN107610873A (en) * | 2017-10-31 | 2018-01-19 | 国网江苏省电力公司电力科学研究院 | A kind of preparation method of composite soft-magnetic powder core of the magnetic conductivity towards PFC inductance equal to 125 |
| WO2019153309A1 (en) * | 2018-02-11 | 2019-08-15 | 深圳市铂科新材料股份有限公司 | Preparation method for novel spherical fe-based amorphous alloy powder and amorphous magnetic powder core |
| WO2019153310A1 (en) * | 2018-02-11 | 2019-08-15 | 深圳市铂科新材料股份有限公司 | Preparation method for iron-based amorphous-state soft magnet powder core and use thereof |
| CN111640570A (en) * | 2020-06-12 | 2020-09-08 | 安徽昭田电子科技有限公司 | Preparation method of iron-based soft magnetic core with high temperature resistance and high surface resistance |
| CN113000847A (en) * | 2021-05-07 | 2021-06-22 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of metal chromium powder for fuel cell bipolar plate |
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