CN106128747B - A kind of heat treatment method and system preparing high-performance iron Based Nanocrystalline Alloys magnetic core - Google Patents
A kind of heat treatment method and system preparing high-performance iron Based Nanocrystalline Alloys magnetic core Download PDFInfo
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- CN106128747B CN106128747B CN201610740055.5A CN201610740055A CN106128747B CN 106128747 B CN106128747 B CN 106128747B CN 201610740055 A CN201610740055 A CN 201610740055A CN 106128747 B CN106128747 B CN 106128747B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
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Abstract
The embodiment of the invention discloses a kind of heat treatment methods and system for preparing high-performance iron Based Nanocrystalline Alloys magnetic core, by improving charging temperature and heating rate, so as to shorten heat treatment time, the magnetic order inside magnetic core can be effectively controlled to a certain extent, reduce magnetocrystalline anisotropy, improves the performance of magnetic core.A kind of heat treatment method preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention, comprising: starting heating system;Predetermined temperature T0 is arranged in heating system, and predetermined temperature information is sent to heat-treatment furnace;Heat-treatment furnace controls furnace chamber and is heated to predetermined temperature T0 from room temperature;It is put into the furnace chamber of heat-treatment furnace around the magnetic core made;Heating system starting pumping program;Furnace chamber air is drawn to vacuum shape by heat-treatment furnace;Heating system starting injection gas program;Heat-treatment furnace injects gas into furnace chamber;Heating system starts the first heating and accelerates program, setting the first heating rate v1, heating first object temperature T1 and the first soaking time t1.
Description
Technical field
The present invention relates at material processing field more particularly to a kind of heat for preparing high-performance iron Based Nanocrystalline Alloys magnetic core
Manage method and system.
Background technique
Nanocrystalline magnet core be by a series of links processing such as base material melting, band spray, coiling cyclization, heat treatments and
At in the case where not considering band ingredient, magnetic core size and shape, heat treatment is most important to high-performance magnetic core is obtained
's.
Traditional heat treatment method is typically all to begin to warm up during heat treatment from room temperature, bent according to scheduled heating
Line is heated up and is kept the temperature, and is finally cooled to room temperature with the furnace and is come out of the stove again.But because of the mistake that heating rate is slow and begins to warm up from room temperature
Time spent by journey is long and causes production cycle length, batch processing effect low to cause to take time and effort.And at heat
The reason time is long, and magnetocrystalline is also easy to produce anisotropy within the longer uncontrollable time inside magnetic core, so that obtained magnetic core has
It is low to imitate magnetic conductivity, is unfavorable for magnetic core and obtains high performance.Therefore it is badly in need of studying suitable heat treatment method, come when shortening heat treatment
Between, and performance of the magnetic core within the scope of certain frequency is stablized, removal adverse effect improves the Effective permeability of magnetic core and resists
Interference performance reduces the wasting of resources.
Summary of the invention
The present invention provides a kind of heat treatment methods and system for preparing high-performance iron Based Nanocrystalline Alloys magnetic core, by mentioning
High charging temperature and heating rate can be controlled effectively inside magnetic core to a certain extent so as to shorten heat treatment time
Magnetic order, reduce magnetocrystalline anisotropy, improve the performance of magnetic core.
A kind of heat treatment method preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention, comprising:
Start heating system;
Predetermined temperature T0 is arranged in heating system, and predetermined temperature information is sent to heat-treatment furnace;
Heat-treatment furnace controls furnace chamber and is heated to predetermined temperature T0 from room temperature;
It is put into the furnace chamber of heat-treatment furnace around the magnetic core made, closes furnace chamber door;
Heating system starting pumping program;
Furnace chamber air is drawn to vacuum shape by heat-treatment furnace;
Heating system starting injection gas program;
Heat-treatment furnace injects gas into furnace chamber;
Heating system start the first heating accelerate program, setting the first heating rate v1, heating first object temperature T1 and
First soaking time t1;
Heat-treatment furnace is heated to first object temperature T1 to magnetic core with uniform the first heating rate v1, and keeps the temperature t1 points
Clock;
Heating system starting second heating accelerate program, setting the second heating rate v2, heating the second target temperature T2 and
Second soaking time t2;
Heat-treatment furnace is heated to the second target temperature T2 to magnetic core with uniform second heating rate v2, and keeps the temperature t2 points
Clock;
Heating system starts cooling process, and third target temperature T3 is arranged;
Heat-treatment furnace cools to the magnetic core in furnace chamber with the furnace third target temperature T3;
Magnetic core is taken out in the furnace chamber of heat-treatment furnace, and is cooled to room temperature in air.
Optionally,
Predetermined temperature T0 >=200 DEG C.
Optionally,
The gas injected in the furnace chamber of heat-treatment furnace is inert gas.
Optionally,
The first heating rate v1 >=10 DEG C/min;
First object temperature T1 is 510 DEG C;
First soaking time t1 is 15min.
Optionally,
Second heating rate v2 >=1 DEG C/min;
Second target temperature T2 is 560 DEG C;
Second soaking time t2 is 60min.
Optionally,
Third target temperature is 300 DEG C.
Optionally,
Magnetic core includes high-frequency low-consumption Fe-Nb-Cu-Si-B fast quenching soft magnetism iron-base nanometer crystal alloy.
Optionally,
The magnetic core prepared in the frequency range of 1KHz-100KHz, the numerical value of Effective permeability 40000 with
On.
A kind of heat treatment system preparing high-performance iron Based Nanocrystalline Alloys magnetic core, comprising:
Heating system and heat-treatment furnace;
Heating system includes:
First start unit, for starting heating schedule;
First control unit, for predetermined temperature T0 to be arranged;
Second start unit, for starting pumping program;
Third start unit, for starting injection gas program;
4th start unit accelerates program for starting the first heating;
5th start unit accelerates program for starting heating;
6th start unit, for starting cooling process;
Heat-treatment furnace includes:
First thermostat units, for furnace chamber to be heated to predetermined temperature T0 from room temperature;
Placement unit, for magnetic core to be put into furnace chamber;
Pumping cells, for furnace chamber air to be drawn to vacuum;
Air injection unit, for injecting gas into furnace chamber;
Second thermostat units, for the magnetic core in furnace chamber to be warming up to first object temperature T1 with the first heating rate v1,
And keep first object temperature T1 constant within the t1 time;
Third thermostat units, for the magnetic core in furnace chamber to be warming up to the second target temperature T2 with the second heating rate v2,
And keep the second target temperature T2 constant within the t2 time;
4th thermostat units, the magnetic core for furnace chamber to be connected in furnace chamber are cooled to third target temperature T3 together;
Retrieval unit, for taking out magnetic core out of furnace chamber.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
A kind of heat treatment method preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention, comprising: starting heating system
System;Predetermined temperature T0 is arranged in heating system, and predetermined temperature information is sent to heat-treatment furnace;Heat-treatment furnace controls furnace chamber from room
Temperature is heated to predetermined temperature T0;It is put into the furnace chamber of heat-treatment furnace around the magnetic core made, closes furnace chamber door;Heating system starting is taken out
Gas program;Furnace chamber air is drawn to vacuum shape by heat-treatment furnace;Heating system starting injection gas program;Heat-treatment furnace is to furnace
Intracavitary injection gas;Heating system starts the first heating and accelerates program, setting the first heating rate v1, heating first object temperature
T1 and the first soaking time t1;Heat-treatment furnace is heated to first object temperature T1 to magnetic core with uniform the first heating rate v1,
And keep the temperature t1 minutes;The second heating of heating system starting accelerates program, the second heating rate v2 of setting, the second target temperature of heating
T2 and the second soaking time t2;Heat-treatment furnace is heated to the second target temperature T2 to magnetic core with uniform second heating rate v2,
And keep the temperature t2 minutes;Heating system starts cooling process, setting cooling target temperature T3;Heat-treatment furnace by the magnetic core in furnace chamber with
Furnace is cooled to target temperature T3;Magnetic core is taken out in the furnace chamber of heat-treatment furnace, and is cooled to room temperature in air.Heating system control
The factors such as temperature, the rate of heating and cooling, the soaking time of the heating and cooling of heat-treatment furnace, after starting heating system, heat-treatment furnace liter
Temperature arrives predetermined temperature T0, improves charging temperature;After being put into magnetic core in the heat treatment furnace, take first be pumped to vacuum reinject it is lazy
Property gas energy effective protection magnetic core in temperature-rise period free from admixture interfere, to protect positive product purity;It sets in two times different
Heating rate, target temperature and soaking time inhibit entire heat treatment process effectively inside magnetic core to a certain extent
Magnetic order reduces magnetocrystalline anisotropy, improves the soft magnet performance of material;Temperature-fall period is taken and is first down to target temperature T3, then
The temperature of magnetic core can be quickly greatly reduced in cooling method in air, to reduce heat treatment time and heat treatment cost.Effectively
It solves the length of time spent by prior heat treatment method and causes production cycle length, batch processing effect low to cause time-consuming
The problem of effort.
Detailed description of the invention
Fig. 1 is a kind of process for the heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core in the present invention
Figure;
Fig. 2 is a kind of process for the heat treatment system embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core in the present invention
Figure;
Fig. 3 is a kind of process curve for the heat treatment method for preparing high-performance iron Based Nanocrystalline Alloys magnetic core in the present invention
Figure.
Specific embodiment
The object of the present invention is to provide a kind of heat treatment method and system for preparing high-performance iron Based Nanocrystalline Alloys magnetic core,
Magnetic can be effectively controlled to a certain extent by improving charging temperature and heating rate so as to shorten heat treatment time
The magnetic order of core inner reduces magnetocrystalline anisotropy, improves the performance of magnetic core.
Referring next to Fig. 1-Fig. 2, the heat treatment of high-performance iron Based Nanocrystalline Alloys magnetic core is prepared to one of present invention
Method and be that embodiment is illustrated:
A kind of heat treatment method embodiment preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention, comprising:
101, start heating system;
102, predetermined temperature T0 is arranged in heating system, and predetermined temperature information is sent to heat-treatment furnace;
103, heat-treatment furnace controls furnace chamber and is heated to predetermined temperature T0 from room temperature;
104, it is put into the furnace chamber of heat-treatment furnace around the magnetic core made, closes furnace chamber door;
105, heating system starting pumping program;
106, furnace chamber air is drawn to vacuum shape by heat-treatment furnace;
107, heating system starting injection gas program;
108, heat-treatment furnace injects gas into furnace chamber;
109, heating system starting the first heating accelerates program, setting the first heating rate v1, heating first object temperature
T1 and the first soaking time t1;
110, heat-treatment furnace is heated to first object temperature T1 to magnetic core with uniform the first heating rate v1, and keeps the temperature t1
Minute;
111, the second heating of heating system starting accelerates program, the second heating rate v2 of setting, the second target temperature of heating
T2 and the second soaking time t2;
112, heat-treatment furnace is heated to the second target temperature T2 to magnetic core with uniform second heating rate v2, and keeps the temperature t2
Minute;
113, heating system starts cooling process, setting cooling target temperature T3;
114, heat-treatment furnace cools to the magnetic core in furnace chamber with the furnace target temperature T3;
115, magnetic core is taken out in the furnace chamber of heat-treatment furnace, and is cooled to room temperature in air.
In the present embodiment, such as Fig. 1, heating system controls the temperature, the rate of heating and cooling, heat preservation of the heating and cooling of heat-treatment furnace
The factors such as time, after starting heating system, heat-treatment furnace is warming up to predetermined temperature T0, improves charging temperature;In heat-treatment furnace
After being inside put into magnetic core, take first being pumped to vacuum to reinject inert gas energy effective protection magnetic core free from admixture in temperature-rise period dry
It disturbs, to protect positive product purity;Different heating rates, target temperature and soaking time are set in two times, make entirely to be heat-treated
Process effectively inhibits the magnetic order inside magnetic core to a certain extent, reduces magnetocrystalline anisotropy, improves the soft magnetism of material
Energy;Temperature-fall period, which is taken, is first down to target temperature T3, then the temperature of magnetic core can be quickly greatly reduced in method cooling in air,
To reduce heat treatment time and heat treatment cost.It efficiently solves the length of time spent by prior heat treatment method and causes to give birth to
It is low to cause the problem of taking time and effort to produce period length, batch processing effect.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, predetermined temperature T0 >=200 DEG C.
In the present embodiment, magnetic core enters stokehold, and the furnace chamber predetermined temperature T0 of heat-treatment furnace, which is set as 200 DEG C or more, effectively to contract
Short heat treatment time, the use scope setting for the magnetic core that actual temp can be prepared as needed.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, the interior gas injected of the furnace chamber of heat-treatment furnace is inert gas.
In the present embodiment, pumping original air in heat-treatment furnace, to vacuum state, reinjecting inert gas can effectively be protected
Shield magnetic core is not influenced during heating up preparation by other impurity, the purity of energy effective protection and control magnetic core.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, the first heating rate v1 >=10 DEG C/min;First object temperature T1 is 510 DEG C;First soaking time t1 is
15min。
In the present embodiment, heating rate v1 is set according to the gap of predetermined temperature T0 and first object temperature T1, it can
Effective control reaches the time of first object temperature T1, this temperature is kept within the t1 time after reaching first object temperature T1,
It realizes and effectively and quickly promotes temperature.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, the second heating rate v2 >=1 DEG C/min;Second target temperature T2 is 560 DEG C;Second soaking time t2 is 60min.
In the present embodiment, heating rate v2 is set according to the gap of predetermined temperature T1 and the second target temperature T2, it can
Effective control reaches the time of the second target temperature T2, this temperature is kept within the t2 time after reaching the second target temperature T2,
It realizes and effectively and quickly promotes temperature.Method that is this gradually to heat up, improving heat treatment rate, makes entire heat treatment process
Effectively inhibit the magnetic order inside magnetic core to a certain extent, reduces magnetocrystalline anisotropy, improve the soft magnet performance of material.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, cooling target temperature are 300 DEG C.
It in the present embodiment, takes considerable time if the magnetic core being prepared into directly is put into cooling requirement at room temperature, effectively solves
Time spent by prior heat treatment of having determined method is long and causes production cycle length, batch processing effect low to cause time-consuming consumption
The problem of power.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, magnetic core includes high-frequency low-consumption Fe-Nb-Cu-Si-B fast quenching soft magnetism iron-base nanometer crystal alloy.
In the present embodiment, high-frequency low-consumption Fe-Nb-Cu-Si-B fast quenching soft magnetism iron-base nanometer crystal alloy has good temperature
Spend stability.
Below to a kind of heat treatment method embodiment for preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention do into
One step explanation, the magnetic core prepared in the frequency range of 1KHz-100KHz, the numerical value of Effective permeability 40000 with
On.
In the present embodiment, the Effective permeability in 1KHz-100KHz frequency range of prepared magnetic core is disclosed hair
The highest of table, and under 1KHz test frequency, numerical value is 100000 or more;Under 100KHz test frequency, numerical value exists
40000 or more.Such magnetic core has high magnetic permeability, low-coercivity, low-loss, stability high, applied widely, as mutual inductor,
Reactor, inductor, power switch power source, inverter, magnetic amplifier, high frequency transformer, high-frequency converter, high frequency choke
Circle, earth leakage circuit-breaker, common mode inductance etc. can be applied.
A kind of heat treatment system embodiment preparing high-performance iron Based Nanocrystalline Alloys magnetic core of the invention, comprising:
Heating system 201 and heat-treatment furnace 202;
Heating system 201 includes:
First start unit 2011, for starting heating schedule;
First control unit 2012, for predetermined temperature T0 to be arranged;
Second start unit 2013, for starting pumping program;
Third start unit 2014, for starting injection gas program;
4th start unit 2015 accelerates program for starting the first heating;
5th start unit 2016 accelerates program for starting heating;
6th start unit 2017, for starting cooling process;
Heat-treatment furnace 202 includes:
First thermostat units 2021, for furnace chamber to be heated to predetermined temperature T0 from room temperature;
Placement unit 2022, for magnetic core to be put into furnace chamber;
Pumping cells 2023, for furnace chamber air to be drawn to vacuum;
Air injection unit 2024, for injecting gas into furnace chamber;
Second thermostat units 2025, for the magnetic core in furnace chamber to be warming up to first object temperature with the first heating rate v1
T1, and keep first object temperature T1 constant within the t1 time;
Third thermostat units 2026, for the magnetic core in furnace chamber to be warming up to the second target temperature with the second heating rate v2
T2, and keep the second target temperature T2 constant within the t2 time;
4th thermostat units 2027, the magnetic core for furnace chamber to be connected in furnace chamber are cooled to target temperature T3 together;
Retrieval unit 2028, for taking out magnetic core out of furnace chamber.
In the present embodiment, such as Fig. 2, the first start unit 2011 of heating system 201 starts heating schedule, and the first control is single
Predetermined temperature T0 is arranged in member 2012;Furnace chamber is heated to predetermined temperature from room temperature by the first thermostat units 2021 of heat-treatment furnace 202
Magnetic core is put into furnace chamber by T0, placement unit 2022;The second start unit 2013 starting pumping program of heating system 201, heat
Furnace chamber air is drawn to vacuum by the pumping cells 2023 for the treatment of furnace 202;The third start unit 2014 of heating system 201 opens
Dynamic injection gas program, the air injection unit 2024 of heat-treatment furnace 202 inject gas into furnace chamber;The 4th of heating system 201 opens
Moving cell 2015 starts the first heating and accelerates program, the second thermostat units 2025 of heat-treatment furnace 202 by the magnetic core in furnace chamber with
The first heating rate v1 is warming up to first object temperature T1, and keeps first object temperature T1 constant within the t1 time;Heating system
The 5th start unit 2016 starting heating of system 201 accelerates program, and the third thermostat units 2026 of heat-treatment furnace 202 will be in furnace chamber
Magnetic core the second target temperature T2 is warming up to the second heating rate v2, and keep the second target temperature T2 not within the t2 time
Become;6th start unit 2017 of heating system 201 starts cooling process;4th thermostat units 2027 of heat-treatment furnace 202 will
Magnetic core in furnace chamber connection furnace chamber is cooled to target temperature T3 together, and retrieval unit 2028 takes out magnetic core out of furnace chamber.Heating
System 201 controls the factors such as temperature, the rate of heating and cooling, the soaking time of heating and cooling of heat-treatment furnace 202, steps up furnace chamber
Temperature first cools down after magnetic core is made and cools down again, and whole system controllability is strong, preparation process is completely orderly, shortens heat treatment week
Phase effect is obvious.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored, or do not handle.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features;And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of heat treatment method for preparing high-performance iron Based Nanocrystalline Alloys magnetic core characterized by comprising
Start heating system;
Predetermined temperature T0 is arranged in the heating system, and predetermined temperature information is sent to heat-treatment furnace;
The heat-treatment furnace control furnace chamber is heated to predetermined temperature T0 from room temperature;
It is put into the furnace chamber of the heat-treatment furnace around the magnetic core made, closes furnace chamber door;
The heating system starting pumping program;
Furnace chamber air is drawn to vacuum shape by the heat-treatment furnace;
The heating system starting injection gas program;
The heat-treatment furnace injects gas into furnace chamber;
Heating system starting the first heating accelerates program, setting the first heating rate v1, heating first object temperature T1 and
First soaking time t1;
The heat-treatment furnace is heated to the first object temperature T1 to magnetic core with the uniform the first heating rate v1, and protects
It is t1 minutes warm;
The second heating of heating system starting accelerates program, the second heating rate v2 of setting, the second target temperature T2 of heating and
Second soaking time t2;
The heat-treatment furnace is heated to the second target temperature T2 to magnetic core with the uniform second heating rate v2, and protects
It is t2 minutes warm;
The heating system starts cooling process, and third target temperature T3 is arranged;
The heat-treatment furnace cools to the magnetic core in furnace chamber with the furnace target temperature T3;
Magnetic core is taken out out of the heat-treatment furnace furnace chamber, and is cooled to room temperature in air;
Predetermined temperature T0 >=200 DEG C;
The first heating rate v1 >=10 DEG C/min;
The first object temperature T1 is 510 DEG C;
The first soaking time t1 is 15min;
Second heating rate v2 >=1 DEG C/min;
The second target temperature T2 is 560 DEG C;
The second soaking time t2 is 60min;
The third target temperature is 300 DEG C.
2. a kind of heat treatment method for preparing high-performance iron Based Nanocrystalline Alloys magnetic core according to claim 1, feature
It is,
The gas injected in the furnace chamber of the heat-treatment furnace is inert gas.
3. a kind of heat treatment method for preparing high-performance iron Based Nanocrystalline Alloys magnetic core according to claim 1, feature
It is,
The magnetic core includes high-frequency low-consumption Fe-Nb-Cu-Si-B fast quenching soft magnetism iron-base nanometer crystal alloy.
4. a kind of heat treatment method for preparing high-performance iron Based Nanocrystalline Alloys magnetic core according to claim 1, feature
It is,
The magnetic core prepared is in the frequency range of 1KHz-100KHz, and the numerical value of Effective permeability is 40000 or more.
5. a kind of heat treatment system for preparing high-performance iron Based Nanocrystalline Alloys magnetic core, which is characterized in that
It include: heating system and heat-treatment furnace;
The heating system includes:
First start unit, for starting heating schedule;
First control unit, for predetermined temperature T0 to be arranged;
Second start unit, for starting pumping program;
Third start unit, for starting injection gas program;
4th start unit accelerates program for starting the first heating;
5th start unit accelerates program for starting heating;
6th start unit, for starting cooling process;
The heat-treatment furnace includes:
First thermostat units, for furnace chamber to be heated to predetermined temperature T0 from room temperature;
Placement unit, for magnetic core to be put into furnace chamber;
Pumping cells, for furnace chamber air to be drawn to vacuum;
Air injection unit, for injecting gas into furnace chamber;
Second thermostat units, for the magnetic core in furnace chamber to be warming up to first object temperature T1 with the first heating rate v1, and
Keep first object temperature T1 constant in the t1 time;
Third thermostat units, for the magnetic core in furnace chamber to be warming up to the second target temperature T2 with the second heating rate v2, and
Keep the second target temperature T2 constant in the t2 time;
4th thermostat units, the magnetic core for furnace chamber to be connected in furnace chamber are cooled to third target temperature T3 together;
Retrieval unit, for taking out magnetic core out of furnace chamber;
Wherein, predetermined temperature T0 >=200 DEG C;
The first heating rate v1 >=10 DEG C/min;
First object temperature T1 is 510 DEG C;
First soaking time t1 is 15min;
Second heating rate v2 >=1 DEG C/min;
Second target temperature T2 is 560 DEG C;
Second soaking time t2 is 60min;
Third target temperature is 300 DEG C.
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CN106555047A (en) * | 2016-11-23 | 2017-04-05 | 宜春学院 | The heat treatment method of iron-base nanometer crystal alloy soft magnetic ribbon |
CN107365950B (en) * | 2017-07-24 | 2019-03-19 | 广东咏旺新材料科技有限公司 | Fe-Si-B-Nb-Cu is Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and heat treatment process |
CN109735688A (en) * | 2018-12-24 | 2019-05-10 | 广东工业大学 | A kind of magnetic field heat treatment process improving iron based nano crystal high-gradient magnetism energy |
CN109666787A (en) * | 2019-02-20 | 2019-04-23 | 中山市董泽粉末涂料有限公司 | A kind of preceding heat treatment method of ferrous alloy band solidification |
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CN114959213A (en) * | 2022-04-13 | 2022-08-30 | 宁波中科毕普拉斯新材料科技有限公司 | Heat treatment method of high-frequency low-loss iron-based nanocrystalline magnetic core |
CN117079965A (en) * | 2023-09-19 | 2023-11-17 | 东莞市昱懋纳米科技有限公司 | Heat treatment method for improving high-frequency magnetic permeability of nanocrystalline magnetic core |
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