CN1905091A - Nano-crystal soft magnetic iron core, heat treatment method and application thereof - Google Patents
Nano-crystal soft magnetic iron core, heat treatment method and application thereof Download PDFInfo
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- CN1905091A CN1905091A CN 200510036133 CN200510036133A CN1905091A CN 1905091 A CN1905091 A CN 1905091A CN 200510036133 CN200510036133 CN 200510036133 CN 200510036133 A CN200510036133 A CN 200510036133A CN 1905091 A CN1905091 A CN 1905091A
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Abstract
The invention relates to nanometer crystal soft magnet core. It includes the cyclic magnet core with 0.027-0.03mm thickness. Its magnet core alloy constituent atom percentages are as follows: Fe 67-80, Ni or Co or Ni and Co 0.1-0.6, Nb 2-4, Cu 0.5-1.5, Si 10-17, and B 6-10. It replaces Ni or Co by Fe to process better initial permeability and 0.5-0.85 magnetic performance ratio. The heat treatment can make the magnet core reach optimal efficiency which can be used in electromagnetic residual current protective circuit breaker and current voltage transformer.
Description
Technology
The invention relates to a soft magnetic material of the core, in particular to a nano-crystalline soft magnetic core and
Heat treatment methods and applications.
BACKGROUND
Nanocrystalline soft magnetic materials is the use of amorphous strip process first obtain amorphous material, the heat
After the formation of the microstructure of microcrystalline 20nm, so called ultrafine-grained materials or nanocrystalline soft magnetic materials,
In nanocrystalline soft magnetic material found previously, the widespread use of soft magnetic material is silicon steel, permalloy, ferrite
And amorphous alloys. Its used in switching power supplies, electrical, electronic equipment, instrumentation industry, in playing an important
The role, but also the existence of its own disadvantages, such as silicon steel having a high saturation magnetic induction, but its effective
Permeability value is low, especially in the high frequency range; Another example ferrite high-frequency loss characteristics, but the saturation magnetization
Flu and magnetic permeability of low value; another example, permalloy with high initial permeability, low coercive force, magnetic
Stable performance, but not high enough saturation magnetic induction, frequency greater than 10KHz, its loss and permeability values are not effective
Ideal, and expensive; further cobalt-based amorphous alloy, although having a high magnetic permeability and the frequency range
Have low loss, but there are also a low value of Bs and expensive issue. The nanocrystalline alloy is known for its self-
Excellent overall magnetic body, i.e., high permeability, high saturation magnetic induction, low loss, and more and more
In the industry, especially electrical, electronics manufacturing can be applied.
...
For now, NbCuFeSiB typical magnetic properties of nanocrystalline alloys under different heat treatment processes
Divided into three categories: A. longitudinal magnetic field heat treatment: μi = 8000, μm = 800000; B. ordinary heat treatment without magnetic field:
μi = 100000, μm = 400000; C. transverse magnetic heat treatment: μi = 30000, μm = 40000. This
Greatly limits the application of materials, such as electromagnetic residual current circuit breaker, with the device to small
Type of direction, requires reduced in size while the core has a high magnetic permeability. Especially for Type A
Electromagnetic residual current circuit breaker, required core can detect AC leakage current, and can detect a pulsation
DC leakage current. On the magnetic properties of the core requirements are: μi = 100000, and μi / μm = 0.5-0.85. To
Current transformer, the traditional view is correct NbCuFeSiB magnetic alloy with no heat treatment method to improve
Initial permeability. However, the actual application, because the core is easy to magnetic saturation, the linear error increases for electrically
Current transformers, angle difference and ratio spreads are below standard; common mode inductance, causing increased core loss and iron
Magnetic saturation of the core, the device is expected to reach requirements. Around these problems, the industry technician
Also conducted a number of tests in order to seek solutions, such as the Chinese Patent Publication No. 1313615A and
Chinese Patent Publication No. 1621552A discloses were "high-permeability treatment of the annular core,"
"Containing traces of Fe-based nanocrystalline alloys of rare earth elements", the former is carried on from the heat treating process improvement,
While the latter is from the material component is added to solve the above formulated specific problems, and achieved
Certain effects. To date, no reports have NbCuFeSiB alloy by heat treatment to obtain
Maximum permeability μm> 1100000 and μi> 40000, μi / μm core is 0.5 to 0.85. It should be noted
Is specific to the nanocrystalline soft magnetic core of its products and its overall performance is inextricably carrier applications
Relationship, in other words, its application to what it needs the support performance parameters are different, which need
Throughout the manufacturing process to be targeted from the material components and the heat treatment process on a number of sets for each
Carrier class technology solutions applied to ensure that its performance reflected.
...
For now, NbCuFeSiB typical magnetic properties of nanocrystalline alloys under different heat treatment processes
Divided into three categories: A. longitudinal magnetic field heat treatment: μi = 8000, μm = 800000; B. ordinary heat treatment without magnetic field:
μi = 100000, μm = 400000; C. transverse magnetic heat treatment: μi = 30000, μm = 40000. This
Greatly limits the application of materials, such as electromagnetic residual current circuit breaker, with the device to small
Type of direction, requires reduced in size while the core has a high magnetic permeability. Especially for Type A
Electromagnetic residual current circuit breaker, required core can detect AC leakage current, and can detect a pulsation
DC leakage current. On the magnetic properties of the core requirements are: μi = 100000, and μi / μm = 0.5-0.85. To
Current transformer, the traditional view is correct NbCuFeSiB magnetic alloy with no heat treatment method to improve
Initial permeability. However, the actual application, because the core is easy to magnetic saturation, the linear error increases for electrically
Current transformers, angle difference and ratio spreads are below standard; common mode inductance, causing increased core loss and iron
Magnetic saturation of the core, the device is expected to reach requirements. Around these problems, the industry technician
Also conducted a number of tests in order to seek solutions, such as the Chinese Patent Publication No. 1313615A and
Chinese Patent Publication No. 1621552A discloses were "high-permeability treatment of the annular core,"
"Containing traces of Fe-based nanocrystalline alloys of rare earth elements", the former is carried on from the heat treating process improvement,
While the latter is from the material component is added to solve the above formulated specific problems, and achieved
Certain effects. To date, no reports have NbCuFeSiB alloy by heat treatment to obtain
Maximum permeability μm> 1100000 and μi> 40000, μi / μm core is 0.5 to 0.85. It should be noted
Is specific to the nanocrystalline soft magnetic core of its products and its overall performance is inextricably carrier applications
Relationship, in other words, its application to what it needs the support performance parameters are different, which need
Throughout the manufacturing process to be targeted from the material components and the heat treatment process on a number of sets for each
Carrier class technology solutions applied to ensure that its performance reflected.
...
The present invention is required to solve the technical problem is to provide a preparation by different components than can be obtained
High initial permeability, and to the initial permeability ratio of the maximum permeability in the range of application fields of the sodium
M crystalline soft magnetic cores.
Further object of the present invention based on the above, to provide a nanocrystalline soft magnetic core according should
Different carrier nanocrystalline soft magnetic core used in a heat treatment method.
Further object of the present invention is to provide a use of the above components and heat treatment method for producing a sodium
M Nanocrystalline Soft Magnetic core new fields of application.
The technical scheme of the present invention are: a nano-crystalline soft magnetic core, comprising a preparation of a thickness of
0.027-0.03mm strip made of an annular core after the coil, wherein the core component of the alloy
Press the atomic percentage of Fe 67-80; Ni or Co or Ni and Co 0.1-0.6; Nb 2-4; Cu0.5-1.5; Si 10-17; B 6-10; via longitudinal magnetic core body heat treated the maximum magnetic permeability μm
> 1100000; transverse magnetic heat treatment after the initial permeability μi> 40000, the initial permeability and maximum magnetic permeability
The ratio of μi / μm is 0.5 to 0.85.
The present invention further technical program are: nanocrystalline soft magnetic core heat treatment method, including the following work
Process steps:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) to cool and the cooling process is applied to a magnetic field;
(3) 250 ℃ baked,
The present invention further technical solutions are: nanocrystalline soft magnetic core in electromagnetic residual current protection
Circuit Breaker or nanocrystalline soft magnetic core and the common mode filter inductor current and voltage transformers in
Application.
As a result of the present invention, the nanocrystalline soft magnetic core component in order to replace part of the Ni or Co
Fe its corresponding adjustment of other components of the content, the core not only has a high initial permeability, and
Initial permeability can be obtained and the maximum magnetic permeability of between 0.5 to 0.85 of the preferred ratio of the magnetic properties can be compared.
Ensure that the magnetic properties of the core, and the core according to different uses of the heat-treatment method, the iron
Core products in different play the best performance, the use of the technical scheme applies not only to the core manufacturing
High-frequency transformers, current transformers and other products, but also to electromagnetic circuit breakers and residual current protection
Common mode filter.
...
As a result of the present invention, the nanocrystalline soft magnetic core component in order to replace part of the Ni or Co
Fe its corresponding adjustment of other components of the content, the core not only has a high initial permeability, and
Initial permeability can be obtained and the maximum magnetic permeability of between 0.5 to 0.85 of the preferred ratio of the magnetic properties can be compared.
Ensure that the magnetic properties of the core, and the core according to different uses of the heat-treatment method, the iron
Core products in different play the best performance, the use of the technical scheme applies not only to the core manufacturing
High-frequency transformers, current transformers and other products, but also to electromagnetic circuit breakers and residual current protection
Common mode filter.
...
One kind of nanocrystalline soft magnetic core, including a preparation to a thickness of 0.027-0.03mm strip after rolling
Into the annular core, wherein the core of the alloy composition in atomic percentage of Fe67-80; Ni or Co, or Ni and Co 0.1-0.6; Nb 2-4; Cu 0.5-1.5; Si 10 -17;
B 6-10; via longitudinal magnetic core body heat after its maximum permeability μm> 1100000; through transverse magnetic heat
After processing the initial permeability μi> 40000, the initial permeability and the ratio of the maximum permeability μi / μm is
0.5 to 0.85.
The nanocrystalline soft magnetic alloy of Ni in the core component is 0.15. The nanocrystalline soft magnetic iron core
Alloy composition of Co 0.35. Co and Ni of the iron core in the alloy composition was Co 0.5, Ni0.1.
A nano-crystalline soft magnetic core of the heat treatment method, comprising the steps of:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) cooling, and during cooling the strip parallel to the direction of a longitudinal magnetic field is applied to:
(3) 250 ℃ baked,
Magnetic obtained by the above process parameters:
μi＝5000-15000，μm＝1200000-1800000。
Another heat nanocrystalline soft magnetic core, comprising the steps of:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 250-400
Oe transverse magnetic field to:
(3) 250 ℃ baked,
Magnetic obtained by the above process parameters:
μi＝120000-180000，μm＝200000-300000；
μi/μm＝0.5～0.65。
A nano-crystalline soft magnetic core and then heat treatment method, comprising the steps of:
(1) the core is heated to 540-570 ℃, heat for 15 minutes, then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 350-500
Oe transverse magnetic field to:
(3) 250 ℃ baked,
Magnetic obtained by the above process parameters:
μi＝80000-120000，μm＝130000-180000；
μi/μm＝0.6～0.7。
There is a nanocrystalline soft magnetic core heat treatment method, comprising the steps of:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 500 -
600Gs transverse magnetic field to:
(3) 250 ℃ baked,
Its magnetic parameters μi = 40000-80000,
μm＝55000-100000；μi/μm＝0.65～0.85。
One kind of nanocrystalline soft magnetic core in electromagnetic residual current circuit breaker application.
One kind of nanocrystalline soft magnetic core inductor common mode filter in the application.
The following combination of specific embodiments of the invention and further heat treatment and application instructions:
Example 1 uses a percentage of the atomic composition Fe73.15 Co0.35 Nb3 Cu1
Si13.5 B9, Click composition ratio smelted alloys, production of single roll strip thickness is 0.028mm,
The strip wound in a Φ21 × φ14 × 18 of the core, using different heat treatment process, the corresponding magnetic
As follows:
| μi | μm | μi/μm | Use | |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled Applied axial magnetic field 250 ℃ Baked | 6000 | 1350000 | 30mA and 10mA AC-type electromagnetic Residual current circuit breaker |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled Cross was applied 330Oe Magnetic 250 ℃ baked | 120000 | 220000 | 0.54 | A type 30mA, A type 10mA, AC Electromagnetic type residual current 100mA Current and voltage protection circuit breaker and mutual Sensor. |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied 420Oe Transverse magnetic 250 ℃ baked | 85000 | 135000 | 0.63 | A type 300mA, AC type 300mA Electromagnetic residual current protection circuit And its common mode filter |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled Cross was applied 560Oe Magnetic 250 ℃ baked | 50000 | 60000 | 0.83 | A type 500mA, AC type 500Ma Electromagnetic residual current protection circuit And its common mode filter |
Example 2 uses a percentage of the atomic composition Fe72.9 Co0.5 Ni0.1 Nb3 Cu1
Si13.5 B9, Click composition ratio smelted alloys, production of single roll strip thickness is 0.028mm,
The strip wound in a Φ21 × φ14 × 18 of the core, using different heat treatment process, the corresponding magnetic
As follows:
| μi | μm | μi/μm | Use | |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied axial magnetic field 250 ℃ baked | 5000 | 1500000 | 30mA and 10mA AC-type electromagnetic Residual current circuit breaker | |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied 330Oe Transverse magnetic 250 ℃ baked | 130000 | 220000 | 0.59 | A type 30mA, A type 10mA, AC Electromagnetic type residual current 100mA Current and voltage protection circuit breaker and mutual Sensor. |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied 560Oe Transverse magnetic 250 ℃ baked | 55000 | 70000 | 0.78 | A type 500mA, AC type 500Ma Electromagnetic residual current protection circuit And the common mode filter |
Example 3 uses a percentage of the atomic composition Fe73.5 Ni0.15 Nb3 Cu1
Si13.5 B9, Click composition ratio smelted alloys, production of single roll strip thickness is 0.028mm,
The strip wound in a Φ21 × φ14 × 18 of the core, using different heat treatment process, the corresponding magnetic
As follows:
| μi | μm | μi/μm | Use | |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied axial magnetic field 250 ℃ baked | 8000 | 1800000 | 30mA and 10mA AC-type electromagnetic Residual current circuit breaker | |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled Cross was applied 330Oe Magnetic 250 ℃ baked | 150000 | 255000 | 0.59 | A type 30mA, A type 10mA, AC Electromagnetic type residual current 100mA Current and voltage protection circuit breaker and mutual Sensor. |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied 420Oe Transverse magnetic 250 ℃ baked | 115000 | 177000 | 0.65 | A type 300mA, AC type 300mA Electromagnetic residual current protection circuit And the common mode filter |
| Core is heated to 560 ℃ Incubated for 15 ', then cooled But applied 560Oe Transverse magnetic 250 ℃ baked | 650000 | 80000 | 0.81 | A type 500mA, AC type 500Ma Electromagnetic residual current protection circuit And the common mode filter |
Claims (10)
1, a nano-crystalline soft magnetic core, comprising a preparation having a thickness of 0.027-0.03mm Tape
After the material roll core made of a ring-shaped, wherein the core of the alloy composition in atomic percent
Ratio of Fe 67-80; Ni or Co, or Ni and Co 0.1-0.6; Nb 2-4; Cu 0.5-1.5;
Si 10-17; B 6-10; via longitudinal magnetic core body heat after its maximum permeability μm>
1100000; transverse magnetic heat treatment after the initial permeability μi> 40000, initial and maximum magnetic permeability
Conductivity ratio μi / μm is 0.5 to 0.85.
2, according to claim 1, wherein the nanocrystalline soft magnetic core, wherein said core
Ni in the alloy composition of 0.15.
3, according to claim 1, wherein the nanocrystalline soft magnetic core, wherein the core component of the Co alloy is 0.35.
4, according to claim 1, wherein the nanocrystalline soft magnetic core, wherein said core
Co and Ni in the alloy composition was Co 0.5, Ni 0.1.
5 A process according to claim 1 nanocrystalline soft magnetic core heat treatment method, including, for example
The following process steps:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) cooling, and during cooling the strip parallel to the direction of a longitudinal magnetic field is applied to:
(3) 250 ℃ baked,
Magnetic properties obtained by the above process parameters are:
μi＝5000-15000，μm＝1200000-1800000。
6 A process according to claim 1 nanocrystalline soft magnetic core heat treatment method, including, for example
The following process steps:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 250
-400Oe transverse magnetic field to:
(3) 250 ℃ baked,
Magnetic properties obtained by the above process parameters are:
μi＝120000-180000，μm＝200000-300000；
μi/μm＝0.5～0.65。
7 A process according to claim 1 nanocrystalline soft magnetic core heat treatment method, including, for example
The following process steps:
(1) the core is heated to 540-570 ℃, heat for 15 minutes, then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 350
-5000e transverse magnetic field to:
(3) 250 ℃ baked,
Magnetic properties obtained by the above process parameters are:
μi＝80000-120000，μm＝130000-180000；
μi/μm＝0.6～0.7。
8 A process according to claim 1 nanocrystalline soft magnetic core heat treatment method, including, for example
The following process steps:
(1) the core is heated to 540-570 ℃, heat for 15 minutes and then
(2) to cool and the cooling process along the direction perpendicular to the strip to apply a size of 500
-600Gs transverse magnetic field to:
(3) 250 ℃ baked,
Its magnetic parameters μi = 40000-80000,
μm＝55000-100000；μi/μm＝0.65～0.85。
9, A method of claim 1, wherein the nanocrystalline soft magnetic core in electromagnetic residual current protection
Circuit Breaker.
10 A process according to claim 1, wherein the nanocrystalline soft magnetic core of the common-mode inductance in the filter
Application.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408325A (en) * | 2013-07-04 | 2013-11-27 | 南通冠优达磁业有限公司 | Heat treatment process of ferrite magnetic parts |
| 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 |
| CN105074843A (en) * | 2013-02-15 | 2015-11-18 | 日立金属株式会社 | Annular magnetic core using Fe iron-based nanocrystalline soft-magnetic alloy and magnetic component using said annular magnetic core |
| CN105428053A (en) * | 2015-12-30 | 2016-03-23 | 佛山市中研非晶科技股份有限公司 | Method for precisely preparing nanocrystalline magnetic core with high magnetic permeability |
| CN107464649A (en) * | 2017-08-03 | 2017-12-12 | 江苏奥玛德新材料科技有限公司 | A kind of magnetic core with linear hysteresis curve |
| CN109754975A (en) * | 2019-03-14 | 2019-05-14 | 安徽智磁新材料科技有限公司 | Nanometer crystal alloy and preparation method thereof with excellent toughness |
| CN111383836A (en) * | 2020-05-07 | 2020-07-07 | 安徽大学 | Method for reducing hysteresis loss of soft magnetic composite material |
| CN111411199A (en) * | 2020-03-20 | 2020-07-14 | 杭州曼德新材料有限公司 | Heat treatment method of magnetic core of mutual inductor suitable for B-type leakage protection |
| CN112164541A (en) * | 2020-10-15 | 2021-01-01 | 太原理工大学 | Anti-direct-current iron-based nanocrystalline alloy and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074843A (en) * | 2013-02-15 | 2015-11-18 | 日立金属株式会社 | Annular magnetic core using Fe iron-based nanocrystalline soft-magnetic alloy and magnetic component using said annular magnetic core |
| CN103408325A (en) * | 2013-07-04 | 2013-11-27 | 南通冠优达磁业有限公司 | Heat treatment process of ferrite magnetic parts |
| 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 |
| CN104952583B (en) * | 2015-04-22 | 2017-04-05 | 横店集团东磁股份有限公司 | A kind of preparation method of amorphous metal soft-magnetic powder core |
| CN105428053A (en) * | 2015-12-30 | 2016-03-23 | 佛山市中研非晶科技股份有限公司 | Method for precisely preparing nanocrystalline magnetic core with high magnetic permeability |
| CN107464649A (en) * | 2017-08-03 | 2017-12-12 | 江苏奥玛德新材料科技有限公司 | A kind of magnetic core with linear hysteresis curve |
| CN109754975A (en) * | 2019-03-14 | 2019-05-14 | 安徽智磁新材料科技有限公司 | Nanometer crystal alloy and preparation method thereof with excellent toughness |
| CN111411199A (en) * | 2020-03-20 | 2020-07-14 | 杭州曼德新材料有限公司 | Heat treatment method of magnetic core of mutual inductor suitable for B-type leakage protection |
| CN111383836A (en) * | 2020-05-07 | 2020-07-07 | 安徽大学 | Method for reducing hysteresis loss of soft magnetic composite material |
| CN112164541A (en) * | 2020-10-15 | 2021-01-01 | 太原理工大学 | Anti-direct-current iron-based nanocrystalline alloy and preparation method thereof |
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