CN109003772A - A kind of composite material magnetic core and preparation method thereof - Google Patents
A kind of composite material magnetic core and preparation method thereof Download PDFInfo
- Publication number
- CN109003772A CN109003772A CN201810821718.5A CN201810821718A CN109003772A CN 109003772 A CN109003772 A CN 109003772A CN 201810821718 A CN201810821718 A CN 201810821718A CN 109003772 A CN109003772 A CN 109003772A
- Authority
- CN
- China
- Prior art keywords
- alloy
- magnetic core
- composite material
- band
- content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14775—Fe-Si based alloys in the form of sheets
Abstract
The present invention provides a kind of composite material magnetic cores and preparation method thereof, pass through the content of regulation alloy compositions and each component, and further heat treatment process, obtain the composite material magnetic core with stable magnetic conductivity, excellent direct current biasing ability, low-coercivity and high saturated magnetic induction.The material grains size is in 30nm hereinafter, saturation induction density is 1.1-1.5T, and coercivity is lower than 6A/m, and comprehensive performance is good.Method preparation process provided by the invention is simple, at low cost and do not need high heating rate, and the temperature range and soaking time range of heat treatment are than broad, industrialized production easy to accomplish, with good economic efficiency and application prospect.
Description
Technical field
The present invention relates to field of new materials, and in particular to a kind of composite material magnetic core and preparation method thereof.
Background technique
As hyundai electronics, power equipment constantly develop to energy-saving, miniaturization, lightening and efficient direction, people
To the magnetic property of the core material in electromagnetic conversion device, more stringent requirements are proposed.
Soft magnetic materials is the magnetic material with low-coercivity and high magnetic permeability.Soft magnetic materials iron core is easy to magnetize, also easily
In demagnetization, it is widely used in electrician and electronic equipment as electromagnetic conversion device.
Since the last century, silicon steel sheet material is because of its higher saturation induction density, is widely used for always as being
Core material.But the coercivity of silicon steel material is higher, be lost it is larger, caused by energy consumption it is higher.Therefore, silicon steel sheet is general only
It can apply in power frequency occasion.In some high-frequency work occasions, performance can be caused to decline because iron core calorific value is excessive, thus seriously
Influence its service performance.
In order to solve the problems, such as silicon steel sheet excessively high loss in use, it has been developed that Fe-based amorphous alloy, it should
Alloy has extremely low loss and lower coercivity and magnetic conductivity and resistance rate is higher, has been used as high-performance soft magnetic materials
Power frequency distribution transformer iron core is used for by scale application.But Fe-based amorphous alloy is there is also magnetic hysteresis coefficient of dilatation is larger, in,
The problems such as high frequency magnetic conductivity is compared with low and high temperature flowering structure and unstable performance, these deficiencies seriously limit their use scope.
Such as CN103258612A discloses a kind of low magnetic conduction magnetic core and its manufacturing method and purposes, by regulation alloy at
Point and content, be prepared with low magnetic permeability, highly resistance saturation performance amorphous alloy.But the magnetic core magnetic of the amorphous material
Cause coefficient of dilatation higher, annealing temperature when preparation is lower, and annealing time is shorter, and cause destressing heat treatment to be not enough, into
And stress is caused not completely eliminate, affect the linearity of the magnetic conductivity of permanent magnetic conduction；In addition, due to the magnetic core magnetic conductivity compared with
Low, coercivity is higher, and core loss is larger, is not suitable in the use environment of medium, high frequency.
With new electronic industry development, more higher requirements, such as photovoltaic, wind-powered electricity generation, change are proposed to soft magnetic materials
The development of the inverters such as frequency dragging, proposes with high inductance, high anti-saturation the key components inductance of electromagnetic compatibility
The requirement such as performance, excellent frequency characteristic of MHz grade, therefore on the basis of iron-base amorphous alloy material, iron based nano crystal closes
Gold comes into being.The alloy can be initially formed a kind of amorphous material by fast solidification technology, the amorphous material using
It can get nanocrystalline crystal grain main phase after crystallization and thermal treatment, while also retaining a small amount of amorphous residual phase.Iron based nano crystal material has
The comprehensive magnetics energy such as higher saturation induction density, high initial magnetoconductivity and low-coercivity, magnetic core made of nanocrystalline material
There is very low core loss under high frequency, high magnetic strength, and with minimum magnetostriction coefficient and it is extremely strong induct it is each
Anisotropy constant Ku, can be in different frequency condition in the magnetic core for after magnetic field is handled, obtaining different residual magnetic flux density values
Lower use.Nanocrystalline material magnetic core be widely used in high power switching power supply, inverter, magnetic amplifier, high frequency transformer,
High-frequency converter, high frequency choke coil, current transformer, earth leakage circuit-breaker and common mode inductance and radio energy transmission system
In.
But the nanocrystalline material being applied in above-mentioned electronic component currently on the market remains saturation induction
The problems such as intensity is lower, and coercivity is higher, and brittleness is larger after heat treatment limits its and widely applies.
Summary of the invention
In order to solve the above technical problems, passing through pairing the present invention provides a kind of composite material magnetic core and preparation method thereof
Element species and proportion in gold are designed and optimize, and are handled using subsequent heat treatment technique, have obtained having steady
Fixed magnetic conductivity, excellent direct current biasing ability, low-coercivity and high saturated magnetic induction composite material magnetic core, the material
Expect that crystallite dimension is less than 30nm, saturation induction density 1.1-1.5T, coercivity is less than 6A/m, has excellent synthesis soft magnetism
Performance；And preparation process is simple, cost of material is low, high production efficiency, can carry out scale industrial production, has good economy
Benefit and application prospect.
To reach this purpose, the invention adopts the following technical scheme:
In a first aspect, the composite material magnetic core contains following components the present invention provides a kind of composite material magnetic core:
Fe, Si, B, Nb, Cu and A, D, E and M；Wherein, the A is Co and/or Ni；The D is in C, P, Ge, As, Sn, Ga or Al
Any one or at least two combination；The E is any one or at least two in Mo, V, Cr, Ti, Zr, Hf, Ta or W
The combination of kind；M is the combination of any one or at least two in Au, Pt or Ag；
Based on atomic percentage content, the sum of the Fe and the content of A are calculated as p, and the sum of the content of described Si, B and D are calculated as x,
The sum of the content of the Nb and E is calculated as y, and the sum of the Cu and the content of M are calculated as z；
The content of each component meets following relationship: 70%≤p≤80%；20%≤x≤24%, 2.5%≤y≤3.2%；
1.2%≤z≤2.0%；P+x+y+z=100%.
The present invention is that alloy is made to have high saturation induction density, it is necessary to assure the ferromagnetic elements of enough contents (Fe,
Co or Ni), but the amorphous formation ability of alloy can be made to decline when ferromagnetic element too high levels, ferromagnetic property is not when too low
Foot, therefore present invention determine that ferromagnetic element content in 70%-80%.
Auxiliary formed amorphous element be to be formed it is Fe-based amorphous indispensable, auxiliary formed amorphous element (B, C, P, Ge,
As, Sn, Ga, Al etc.) content cannot form amorphous state if too low, and too high levels ifs, can reduce soft magnet performance, in addition, in right amount
The addition of nonmetalloid (Si, C, P etc.) can also reduce alloy melting point, improve amorphous formation ability, increase two crystallization temperature
The section of degree help to obtain purer α-Fe phase.Therefore present invention determine that auxiliary forms amorphous constituent content in 20%-
24%.
Forming core element (Cu, Ag, Pt, Au etc.) helped as the heterogeneous nucleation point of the nanocrystalline precipitation of α-Fe be it is indispensable,
It properly increases and the content of forming core element is helped to be conducive to initial alpha-Fe grain density during raising amorphous formation, in subsequent heat treatment
The nanocrystalline structure that crystallite dimension is smaller, is evenly distributed is formed in the process, and then improves the soft magnet performance of alloy；But help forming core
Low-alloyed amorphous formation ability can drop in the too high levels of element, or even cannot form amorphous band, therefore present invention determine that help
Comprehensive performance is best when the content of forming core element is 1.2%-2.0%, preferably 1.2-1.6%.
The non-of alloy can be improved in the addition of the appropriate element (Mo, V, Cr, Ti, Zr, Hf, Ta, W etc.) for inhibiting crystal grain to grow up
Brilliant Forming ability, and effectively inhibit that α-Fe is nanocrystalline grows up, but low-alloyed soft magnet performance and increasing can drop in too high levels
The cost of raw material is added, therefore, the constituent content for inhibiting crystal grain to grow up is 2.5%-3.2%.
According to the present invention, the D be C, P, Ge, As, Sn, Ga or Al in any one or at least two combination, example
Such as can be any one in C, P, Ge, As, Sn, Ga or Al, typical but infinite combination are as follows: C and P, Ge and As, Sn and
Ga, C and Al, C, As and Sn, P, Ga and Al etc., as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the E be Mo, V, Cr, Ti, Zr, Hf, Ta or W in any one or at least two combination,
Such as can be any one in Mo, V, Cr, Ti, Zr, Hf, Ta or W, typical but infinite combination are as follows: Mo and V, Cr and
Ti, Zr and Hf, Ta and W, Mo, V and Ti, Zr, Hf and W, Mo, V, Cr and Zr etc., as space is limited and for concise consideration, originally
Invention no longer exclusive list.
According to the present invention, the M be Au, Pt or Ag in any one or at least two combination, such as can be Au,
Any one in Pt or Ag, typical but non-limiting combination are as follows: Au and Pt, Au and Ag, Pt and Ag, Au, Pt and Ag.
According to the present invention, the range of the sum of content of the Fe and A p is 70-80%, for example, can be 70%, 71%,
72%, the specific point value between 73%, 74%, 75%, 76%, 77%, 78%, 79% or 80% and above-mentioned numerical value, is limited to
Length and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the range of the sum of content of described Si, B and D x is 20-24%, such as can be 20%,
20.5%, the specific point value between 21%, 21.5%, 22%, 22.5%, 23%, 23.5% or 24% and above-mentioned numerical value,
As space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the range of the sum of content of the Nb and E y is 2.5-3.2%, such as can be 2.5%,
2.6%, the specific point value between 2.7%, 2.8%, 2.9%, 3%, 3.1% or 3.2% and above-mentioned numerical value, as space is limited
And for concise consideration, the present invention no longer exclusive list.
According to the present invention, the range of the sum of content of the Cu and M z is 1.2-2.0%, such as can be 1.2%,
1.3%, the specific point value between 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9% or 2% and above-mentioned numerical value, limit
In length and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the sum of above-mentioned each component p+x+y+z=100%.
As a preferred technical solution, based on atomic percentage content, the content of the alloy each component meets following relationship:
70%≤p≤78%；21%≤x≤23%；2.6%≤y≤3.0%；1.2%≤z≤1.8%；P+x+y+z=100%.
Second aspect, it is described the present invention provides a kind of preparation method of composite material magnetic core as described in relation to the first aspect
Method the following steps are included:
(1) ingredient is carried out to each alloy compositions by formula ratio, raw material is placed in vacuum intermediate-frequency induction melting furnace, is being protected
Alloy melting is carried out under atmosphere, and master alloy is obtained after the completion of melting；
(2) master alloy that step (1) obtains is prepared as band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, is then heat-treated, obtain composite material magnetic core.
According to the present invention, the purity of step (1) each alloy compositions for ingredient is greater than 99.9%.
According to the present invention, the time of step (1) described alloy melting be 2-3h, such as can be 2h, 2.1h, 2.2h,
Specific point value between 2.3h, 2.4h, 2.5h, 2.6h, 2.7h, 2.8h, 2.9h or 3h and above-mentioned numerical value, as space is limited and
For concise consideration, the present invention no longer exclusive list.
According to the present invention, protective atmosphere described in step (1) is argon gas.
According to the present invention, step (2) prepares the band-like alloy using single roller belt making process.
According to the present invention, the speed of step (2) band processed is 25-35m/s, such as can be 25m/s, 26m/s, 27m/
S, specific between 28m/s, 29m/s, 30m/s, 31m/s, 32m/s, 33m/s, 34m/s or 35m/s and above-mentioned numerical value
Value, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the width for the band-like alloy that step (2) is prepared be 5-70mm, such as can be 5mm,
Specific point value between 10mm, 20mm, 30mm, 40mm, 50mm, 60mm or 70mm and above-mentioned numerical value, as space is limited and for
Concise consideration, the present invention no longer exclusive list.
According to the present invention, the band-like alloy that step (2) is prepared with a thickness of 15-25 μm, such as can be 15 μm, 16
μm, 17 μm, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, 23 μm, 24 μm or the specific point value between 25 μm and above-mentioned numerical value,
As space is limited and for concise consideration, the present invention no longer exclusive list.
The mode of step (3) the of the present invention heat treatment as a preferred technical solution, are as follows: the band for obtaining step (2)
Shape alloy is wound into magnetic core, is directly warming up to 250-350 DEG C, then proceedes to heat up, and the operation for alternately heating up and keeping the temperature reaches
To the subsequent continuation of insurance temperature of outlet temperature, cooling obtains composite material magnetic core after heat preservation.
According to the present invention, the operation for alternately heating up and keeping the temperature are as follows: 20-50 DEG C of heat preservation 20-40min of every raising, such as
20 DEG C of heat preservation 30min can be increased with every, every to increase 30 DEG C of heat preservation 35min, every to increase 50 DEG C of heat preservation 40min, 25 DEG C of every raising is protected
Warm 20min etc., as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the outlet temperature of the heat treatment is 400-560 DEG C, such as can be 400 DEG C, 410 DEG C, 420
℃、430℃、440℃、450℃、460℃、470℃、480℃、490℃、500℃、510℃、520℃、530℃、540℃、
Specific point value between 550 DEG C or 560 DEG C and above-mentioned numerical value, as space is limited and for concise consideration, the present invention is no longer poor
It enumerates to the greatest extent.
According to the present invention, described be heat-treated to up to the soaking time after outlet temperature is 45-90min, such as be can be
Between 45min, 50min, 55min, 60min, 65min, 70min, 75min, 80min, 85min or 90min and above-mentioned numerical value
Specific point value, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, the rate of the heating of step (3) described heat treatment be 2-10 DEG C/min, such as can be 2 DEG C/
Min, 3 DEG C/min, 4 DEG C/min, 5 DEG C/min, 6 DEG C/min, 7 DEG C/min, 8 DEG C/min, 9 DEG C/min or 10 DEG C/min, Yi Jishang
The specific point value between numerical value is stated, as space is limited and for concise consideration, the present invention no longer exclusive list.
According to the present invention, step (3) heat treatment carries out under nitrogen and/or hydrogen atmosphere.
As a preferred technical solution, the method for the present invention for preparing composite material magnetic core the following steps are included:
(1) each alloy compositions by formula ratio using purity greater than 99.9% carry out ingredient, and raw material is placed in vacuum intermediate-frequency
In induction melting furnace, alloy melting 2-3h is carried out under an argon atmosphere, master alloy is obtained after the completion of melting；
(2) master alloy that step (1) obtains is fitted into the melting packet in quick solidification equipment, using single roller system band work
Skill, with the speed band of 25-35m/s, obtaining width is 5-70mm, with a thickness of 15-25 μm of band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, heat is carried out to it under nitrogen and/or hydrogen atmosphere
Processing, control heating rate are 2-10 DEG C/min, the band-like alloy that step (2) obtains directly are warming up to 250-350 DEG C, then
Continue to heat up, alternately heat up and keep the temperature operation, 20-50 DEG C of heat preservation 20-40min of every raising, reach 400-560 DEG C it is subsequent
Continue insurance temperature 45-90min, and cooling obtains composite material magnetic core after heat preservation.
Compared with prior art, the present invention at least has the advantages that
(1) the composite material magnetic core that the present invention obtains mutually is uniformly distributed in the organizational composition of residual amorphous phase by α-Fe, brilliant
Particle size is less than 30nm, which has excellent synthesis soft magnet performance, saturation induction density 1.1-
1.5T, coercivity are less than 6A/m.
(2) preparation process of the present invention is simple, and cost of material is low, high production efficiency, and heating rate is not higher than 10 DEG C/min, drop
The low requirement to Equipment for Heating Processing, while wider heat treatment temperature section and longer heat treatment time make the functional material
Large-scale production, with good economic efficiency and application prospect may be implemented.
Specific embodiment
Of the invention for ease of understanding, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is only to aid in the understanding present invention, should not be regarded as a specific limitation of the invention.
Embodiment 1
Composite material magnetic core manufactured in the present embodiment is composed of the following components: Fe 73.8%, B 8.5%, Si 12.5%,
C 0.5%, Cu 1.7%, Nb 2.5%, Mo 0.5%.
It is prepared in accordance with the following methods:
(1) it uses Fe, B, Si, C, Cu, Nb and the Mo of purity higher than 99.9% for raw material, carries out weighing by formula ratio and match
Material, the raw material prepared is placed in vacuum intermediate-frequency induction melting furnace, small using electromagnetic agitation melt back 2.5 under an argon atmosphere
When, obtain the uniform master alloy of ingredient；
(2) master alloy that step (1) obtains is fitted into the melting packet in quick solidification equipment, using single roller system band work
Skill, with the speed band of 30m/s, obtaining width is 60mm, with a thickness of 20 μm of band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, be placed in Equipment for Heating Processing, in a nitrogen atmosphere, with
The heating rate of 8 DEG C/min is directly warming up to 300 DEG C, then continues to heat up with the heating rate of 6 DEG C/min, alternately heat up
With the operation of heat preservation, 30 DEG C of heat preservation 30min of every raising after reaching 540 DEG C of outlet temperature, keep the temperature 75min, cool to room with the furnace
Temperature obtains composite material magnetic core.
Embodiment 2
Composite material magnetic core manufactured in the present embodiment is composed of the following components: Fe 71.5%, Co 2.5%, B 10%, Si
10%, P 1%, Cu 2.0%, Nb 2.5%, Ti 0.5%.
It is prepared in accordance with the following methods:
(1) it uses Fe, Co, B, Si, P, Cu, Nb and the Ti of purity higher than 99.9% for raw material, weighs by formula ratio
The raw material prepared is placed in vacuum intermediate-frequency induction melting furnace by ingredient, small using electromagnetic agitation melt back 3 under an argon atmosphere
When, obtain the uniform master alloy of ingredient；
(2) master alloy that step (1) obtains is fitted into the melting packet in quick solidification equipment, using single roller system band work
Skill, with the speed band of 35m/s, obtaining width is 50mm, with a thickness of 15 μm of band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, be placed in Equipment for Heating Processing, in a hydrogen atmosphere, with
The heating rate of 8 DEG C/min is directly warming up to 300 DEG C, continues to heat up with identical heating rate, alternately heats up and keeps the temperature
Operation, 40 DEG C of heat preservation 25min of every raising, after reaching 540 DEG C of outlet temperature, keep the temperature 80min, cool to room temperature with the furnace, obtain
Composite material magnetic core.
Embodiment 3
Composite material magnetic core manufactured in the present embodiment is composed of the following components: Fe 70.3%, Co 3.7%, B 10%, Si
10%, C 0.5%, Al 0.5%, Cu 1.0%, Nb 3%, Mo 0.5%, Ag 0.5%.
It is prepared in accordance with the following methods:
(1) use purity higher than 99.9% Fe, Co, B, Si, C, Al, Cu, Nb, Mo and Ag for raw material, by formula ratio into
The raw material prepared is placed in vacuum intermediate-frequency induction melting furnace by row weighing and burden, under an argon atmosphere repeatedly using electromagnetic agitation
Melting 3 hours, obtain the uniform master alloy of ingredient；
(2) master alloy that step (1) obtains is fitted into the melting packet in quick solidification equipment, using single roller system band work
Skill, with the speed band of 33m/s, obtaining width is 5mm, with a thickness of 20 μm of band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, be placed in Equipment for Heating Processing, in nitrogen and hydrogen
Under mixed atmosphere, be directly warming up to 280 DEG C with the heating rate of 7 DEG C/min, continue to heat up with identical heating rate, alternately into
The operation of row heating and heat preservation, 30 DEG C of heat preservation 20min of every raising after reaching 480 DEG C of outlet temperature, keep the temperature 60min, furnace cooling
To room temperature, composite material magnetic core is obtained.
Embodiment 4
Composite material magnetic core manufactured in the present embodiment is composed of the following components: Fe 73.8%, B 8.5%, Si 12.5%,
C 1%, Cu 1.0%, Nb 2%, Mo 0.5%, Hf 0.2%, Ag 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 1
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 65.8%, B 16.5%, Si
12.5%, C 0.5%, Cu 1.7%, Nb 2.5%, Mo 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 2
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 83.8%, B 5.5%, Si 5.5%, C
0.5%, Cu 1.7%, Nb 2.5%, Mo 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 3
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 74.8%, B 8.5%, Si 12.5%,
C 0.5%, Cu 0.7%, Nb 2.5%, Mo 0.5%.The preparation method is the same as that of Example 1.
The preparation method is the same as that of Example 1.
Comparative example 4
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 72.8%, B 8.5%, Si 12.5%,
C 0.5%, Cu 2.7%, Nb 2.5%, Mo 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 5
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 74.8%, B 8.5%, Si 12.5%,
C 0.5%, Cu 1.7%, Nb 1.5%, Mo 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 6
The composite material magnetic core of this comparative example preparation is composed of the following components: Fe 72.8%, B 8.5%, Si 12.5%,
C 0.5%, Cu 1.7%, Nb 3.5%, Mo 0.5%.
The preparation method is the same as that of Example 1.
Comparative example 7
Composite material magnetic core group manufactured in the present embodiment is grouped as same embodiment 1.
It is prepared in accordance with the following methods:
(1) with 1 step of embodiment (1)；
(2) with 1 step of embodiment (2)；
(3) the band-like alloy that step (2) obtains is placed in Equipment for Heating Processing, in a nitrogen atmosphere, with the liter of 8 DEG C/min
When warm rate is warming up to 540 DEG C, 75min is kept the temperature, room temperature is cooled to the furnace, obtains composite material.
The performance and crystallite dimension for the composite material that testing example 1-4 and comparative example 1-7 are obtained, acquired results are such as
Shown in table 1:
Table 1
The Applicant declares that the present invention is explained by the above embodiments detailed process equipment and process flow of the invention,
But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely on
Process equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention,
Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within of the invention
Within protection scope and the open scope.
Claims (10)
1. a kind of composite material magnetic core, which is characterized in that the composite material magnetic core contains following components: Fe, Si, B, Nb, Cu
And A, D, E and M；Wherein, the A is Co and/or Ni；The D is for any one in C, P, Ge, As, Sn, Ga or Al or extremely
Few two kinds of combination；The E is the combination of any one or at least two in Mo, V, Cr, Ti, Zr, Hf, Ta or W；M be Au,
In Pt or Ag any one or at least two combination；
Based on atomic percentage content, the sum of the Fe and the content of A are calculated as p, and the sum of the content of described Si, B and D are calculated as x, described
The sum of the content of Nb and E is calculated as y, and the sum of the Cu and the content of M are calculated as z；
The content of each component meets following relationship: 70%≤p≤80%；20%≤x≤24%, 2.5%≤y≤3.2%；
1.2%≤z≤2.0%；P+x+y+z=100%.
2. composite material magnetic core as described in claim 1, which is characterized in that based on atomic percentage content, each component
Content meets following relationship: 70%≤p≤78%；21%≤x≤23%；2.6%≤y≤3.0%；1.2%≤z≤1.8%；
P+x+y+z=100%.
3. the preparation method of composite material magnetic core as claimed in claim 1 or 2, which is characterized in that the method includes following
Step:
(1) ingredient is carried out to each alloy compositions by formula ratio, raw material is placed in vacuum intermediate-frequency induction melting furnace, in protective atmosphere
Lower carry out alloy melting obtains master alloy after the completion of melting；
(2) master alloy that step (1) obtains is prepared as band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, is then heat-treated, obtain composite material magnetic core.
4. method as claimed in claim 3, which is characterized in that the purity of step (1) each alloy compositions for ingredient
Greater than 99.9%.
5. the method as claimed in claim 3 or 4, which is characterized in that the time of step (1) described alloy melting is 2-3h；
Preferably, protective atmosphere described in step (1) is argon gas.
6. such as the described in any item methods of claim 3-5, which is characterized in that step (2) prepares institute using single roller belt making process
State band-like alloy；
Preferably, the speed of step (2) band processed is 25-35m/s；
Preferably, the width for the band-like alloy that step (2) is prepared is 5-70mm, with a thickness of 15-25 μm.
7. such as the described in any item methods of claim 3-6, which is characterized in that the mode of step (3) described heat treatment are as follows: will walk
Suddenly the band-like alloy that (2) obtain is wound into magnetic core, is directly warming up to 250-350 DEG C, then proceedes to heat up, alternately heating and
The operation of heat preservation reaches the subsequent continuation of insurance temperature of outlet temperature, and cooling obtains composite material magnetic core after heat preservation.
8. the method for claim 7, which is characterized in that the operation for alternately heating up and keeping the temperature are as follows: every raising 20-50
DEG C heat preservation 20-40min；
Preferably, the outlet temperature of the heat treatment is 400-560 DEG C；
Preferably, described be heat-treated to up to the soaking time after outlet temperature is 45-90min.
9. such as the described in any item methods of claim 3-8, which is characterized in that the rate of the heating of step (3) described heat treatment
For 2-10 DEG C/min；
Preferably, step (3) heat treatment carries out under nitrogen and/or hydrogen atmosphere.
10. such as the described in any item methods of claim 3-9, which is characterized in that the described method comprises the following steps:
(1) each alloy compositions by formula ratio using purity greater than 99.9% carry out ingredient, and raw material is placed in vacuum intermediate-frequency induction
In smelting furnace, alloy melting 2-3h is carried out under an argon atmosphere, master alloy is obtained after the completion of melting；
(2) master alloy that step (1) obtains is fitted into the melting packet in quick solidification equipment, using single roller belt making process, with
The speed band of 25-35m/s, obtaining width is 5-70mm, with a thickness of 15-25 μm of band-like alloy；
(3) the band-like alloy that step (2) obtains is wound into magnetic core, it is heat-treated under nitrogen and/or hydrogen atmosphere,
Control heating rate is 2-10 DEG C/min, is directly warming up to 250-350 DEG C, then proceedes to heat up, and alternately heats up and keeps the temperature
Operation, 20-50 DEG C of heat preservation 20-40min of every raising reaches 400-560 DEG C of subsequent continuation of insurance temperature 45-90min, cold after heat preservation
But composite material magnetic core is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821718.5A CN109003772A (en) | 2018-07-24 | 2018-07-24 | A kind of composite material magnetic core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821718.5A CN109003772A (en) | 2018-07-24 | 2018-07-24 | A kind of composite material magnetic core and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109003772A true CN109003772A (en) | 2018-12-14 |
Family
ID=64597289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810821718.5A Pending CN109003772A (en) | 2018-07-24 | 2018-07-24 | A kind of composite material magnetic core and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109003772A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475018A (en) * | 2000-09-15 | 2004-02-11 | ���ڻ� | Magnetic amplifier choke with magnetic core, use of magnetic amplifier choke and method for producing magnetic core for magnetic amplifier choke |
| CN100378875C (en) * | 2003-04-02 | 2008-04-02 | 真空融化两合公司 | Magnet core, method for the production of such a magnet core, uses of such a magnet core especially in current transformers and current-compensated inductors, and alloys and bands used for producing s |
| CN106917042A (en) * | 2017-01-22 | 2017-07-04 | 中国科学院宁波材料技术与工程研究所 | A kind of high frequency high magnetic flux density Fe-based nanocrystalline magnetically soft alloy and preparation method thereof |
| CN107365950A (en) * | 2017-07-24 | 2017-11-21 | 广东咏旺新材料科技有限公司 | Fe Si B Nb Cu are Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and Technology for Heating Processing |
-
2018
- 2018-07-24 CN CN201810821718.5A patent/CN109003772A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475018A (en) * | 2000-09-15 | 2004-02-11 | ���ڻ� | Magnetic amplifier choke with magnetic core, use of magnetic amplifier choke and method for producing magnetic core for magnetic amplifier choke |
| CN100378875C (en) * | 2003-04-02 | 2008-04-02 | 真空融化两合公司 | Magnet core, method for the production of such a magnet core, uses of such a magnet core especially in current transformers and current-compensated inductors, and alloys and bands used for producing s |
| CN106917042A (en) * | 2017-01-22 | 2017-07-04 | 中国科学院宁波材料技术与工程研究所 | A kind of high frequency high magnetic flux density Fe-based nanocrystalline magnetically soft alloy and preparation method thereof |
| CN107365950A (en) * | 2017-07-24 | 2017-11-21 | 广东咏旺新材料科技有限公司 | Fe Si B Nb Cu are Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and Technology for Heating Processing |
Non-Patent Citations (2)
| Title |
|---|
| 何开元: "《软磁合金研究论文选集》", 31 December 2012 * |
| 刘海顺，卢爱红等: "《非晶纳米晶合金及其软磁性能研究》", 30 November 2009 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Effects of Cobalt Addition in Nanocrystalline ${\rm Fe} _ {83.3}{\rm Si} _ {4}{\rm B} _ {8}{\rm P} _ {4}{\rm Cu} _ {0.7} $ Soft Magnetic Alloy | |
| CN110670000B (en) | Nanocrystalline magnetically soft alloy, amorphous magnetically soft alloy and preparation method thereof | |
| CN102304669B (en) | Iron-based nanocrystalline soft magnetic alloy with high saturation magnetic induction and low cost | |
| CN104934179A (en) | Fe-based nanocrystalline soft magnetic alloy with strong amorphous forming ability and preparing method of Fe-based nanocrystalline soft magnetic alloy | |
| CN108570607B (en) | Iron-cobalt-nickel series direct current resistant nanocrystalline alloy material and preparation method thereof | |
| CN103489555A (en) | Iron-based nano-crystalline soft magnetic alloy and method for manufacturing same | |
| CN106373690A (en) | Nanocrystal magnetically soft alloy with high processing property and high saturation magnetic induction strength, and preparation method therefor | |
| CN109234628B (en) | Preparation method of low-loss nanocrystalline magnetically soft alloy | |
| CN107464649A (en) | A kind of magnetic core with linear hysteresis curve | |
| CN106119739A (en) | Iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN105755404A (en) | Fe-based amorphous/nanocrystalline soft magnetic alloy thin belt and preparation method thereof | |
| CN104831169A (en) | Fe-based nano crystal soft magnetic alloy material and preparation method thereof | |
| CN103602931A (en) | Iron-based amorphous nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN109440021A (en) | A kind of iron-based amorphous and nanocrystalline soft magnetic alloy and its preparation method and application | |
| CN101787499B (en) | Iron-based nano-crystalline thin ribbon and manufacturing method thereof | |
| CN102925823A (en) | Iron cobalt-based magnetically soft alloy with high saturation magnetic flux density and preparation method of iron cobalt-based magnetically soft alloy | |
| CN110079749B (en) | Iron-based nanocrystalline-amorphous soft magnetic alloy and preparation method and application thereof | |
| CN109112434A (en) | A kind of new iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof | |
| CN102304680A (en) | Iron-based amorphous/nanocrystalline thin band with low cost and excellent soft magnetic properties and preparation method thereof | |
| CN102129907B (en) | Nanocrystalline soft magnetic alloy iron core with high initial permeability and low remanence and preparation method thereof | |
| CN101629265A (en) | Iron-based nanocrystalline soft magnetic alloy with low cost and high soft magnetic property | |
| CN101792890A (en) | Iron-based nanocrystalline strip with super-high saturated magnetic flux density | |
| Yuting et al. | Research Progress of fe-based amorphous/nanocrystalline alloys | |
| CN110093565B (en) | Iron-based nanocrystalline alloy with wide crystallization window and controllable soft magnetic performance and preparation method thereof | |
| CN108559926B (en) | A kind of preparation method of Fe-based amorphous band and preparation method thereof and high frequency high magnetic permeability nanometer crystal alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181214 |
|
| RJ01 | Rejection of invention patent application after publication |