CN109604587A - A kind of high-frequency low-consumption high-speed motor core material and preparation method thereof - Google Patents

A kind of high-frequency low-consumption high-speed motor core material and preparation method thereof Download PDF

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CN109604587A
CN109604587A CN201811164429.9A CN201811164429A CN109604587A CN 109604587 A CN109604587 A CN 109604587A CN 201811164429 A CN201811164429 A CN 201811164429A CN 109604587 A CN109604587 A CN 109604587A
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temperature
alloy
core material
atmosphere
motor core
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黎超英
吴沛荣
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Liuzhou Kaitong New Material Technology Co Ltd
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Liuzhou Kaitong New Material Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C22C33/06—Making ferrous alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F2003/023—Lubricant mixed with the metal powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
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Abstract

The invention discloses a kind of high-frequency low-consumption high-speed motor core material and preparation method thereof, which is made of the raw materials such as Fe, Si, FeB alloy, FeP alloy, Cu, Nb；After material of the present invention involves acetone cleaning by using ultrasound, it is smelted into ingot under protection of argon gas, then crushed, coated, suppressed, is heat-treated and surface treatment procedure.The frequency of use and temperature stability that the ingredients such as FeP alloy that the present invention adds, Cu, Nb not only can be improved, its magnetic loss can also be reduced, make motor core material obtained that there is lower high-frequency loss rate, loss factor is lower than 1.2 × 10 under 100kHz high frequency‑6。

Description

A kind of high-frequency low-consumption high-speed motor core material and preparation method thereof
Technical field
The present invention relates to a kind of preparation methods of high-frequency low-consumption high-speed motor core material, belong to magnetic material technology neck Domain.
Background technique
Motor core material is a kind of magnetic material, it has excellent magnetic characteristic and energy conservation, section material, environment protecting, It is the incomparable high performance material of other magnetic materials.As a kind of important functional material, it has been widely used In pure electric automobile, high-speed rail, military affairs (in terms of electromagnetic launch.Since high-speed motor running speed is fast, can achieve per minute 3400 to 5 ten thousand to 10 ten thousand, 200,000,500,000,1,000,000 turns, at present domestic production motor core material during running at high speed by It is low in frequency, magnetic loss is larger, make high-speed motor behavior in service unsatisfactory in use.And JFE company, Japan (with MCK merges) manufacturing method of superpower direct current generator and battery core be using vacuum technique, it is one kilometer of vacuum sealing long, five floors are high House, big volume overall vacuum is full-automatic, and the motor core material which obtains is had excellent performance, but technology carry out it is exhausted To secrecy；Domestic certain aluminium company of southwest is copied using plasma spraying, but qualification rate is low, and the impact of performance is still undesirable.Cause This, which develops a kind of high-frequency low-consumption high speed core material, very strong practical significance.
In the motor core material now used, main material is the alloy material of silicon, iron and boron.The present invention is mainly original Substantially, frequency of use and temperature stability that the ingredients such as Nb, P, Cu not only can be improved are added, its magnetic loss can also be reduced Consumption makes motor core material obtained have lower high-frequency loss rate, under 100kHz high frequency loss factor lower than 1.2 × 10- 6；Motor core material produced by the present invention also has the characteristics such as magnetic conductivity height, saturation flux density height, high-curie temperature.
Summary of the invention
The purpose of the present invention is proposing improved technology scheme to existing motor core material and manufacturing method, by this skill Art scheme can improve frequency of use and temperature stability in the case where guaranteeing its original performance, reduce magnetic loss.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of high-frequency low-consumption high-speed motor core material, composition includes 85-86%Fe, 4-5%Si, 8- by mass percentage 9%B, 0.1-0.3%P, 0.7%Cu, 0.7%Nb, remaining is inevitable impurity.
Preferably, the B, which is by FeB alloy, P, to be added in a manner of FeP alloy.
The present invention also provides a kind of preparation methods of motor core material comprising following steps:
(1) pure iron, silicon metal, FeB alloy, FeP alloy, red copper, niobium are subjected to ingredient by above-mentioned mass percent, then distinguished It is cleaned using ultrasonic wave and acetone；
(2) pure iron after above-mentioned cleaning, silicon metal, red copper are put into Efco-Northrup furnace and is smelted, when being passed through argon gas Heating puts into FeB alloy, FeP alloy after material whole fusing, puts into niobium rapidly again after material fusing, reaching melting It casts after keeping the temperature 30 minutes after temperature；
(3) it is quickly cooled down under isothermal after being cast into alloy pig, cooling velocity is not less than 30 DEG C/min；
(4) 25 millimeters of material blocks below are broken by alloy pig made from step (3) is rough and torn, the material block is then subjected to hot place Reason；
(5) the material block after above-mentioned heat treatment is further broken into the material block less than 5 millimeters with jaw crusher again, then used 6000-8000rpm high speed ball mill ball milling 15-25min, is ground into 100 mesh alloy powder below；
(6) alloy powder is subjected to stress annealing processing, sieved later；
(7) alloy powder after above-mentioned screening is matched according to the granularity that 100 Mu ︰ of mass ratio, 200 Mu ︰, 300 mesh is 15% ︰, 35% ︰ 50% Than being deployed, it is passivated processing 1h with 8% liquor potassic permanganate later, coating film is formed on the surface of alloy powder, with height Ridge soil insulate；
(8) by etc. quality dehydrated alcohol and ethyl acetate mix, then slowly poured into stirring and the quality such as dehydrated alcohol Magnetic powder bonding agent, until three is mutually dissolved completely up to glue；2.4% glue that will be equivalent to alloy powder quality again adds Enter in the alloy powder that step (7) obtains, is thoroughly mixed uniformly by blender, after granulation drying, is sieved into less than 40 Mesh powder, then add zinc stearate and make release agent；
(9) the pressure compression moulding in mold in 1000~1200MPa is added in the alloy powder for obtaining step (8), After keeping the temperature 15 minutes in the vacuum of 1.5 pas, 450 DEG C or so of protective atmosphere heat treatment furnace the temperature, pressure be 1000 ~1200MPa carries out secondary compacting, protects in the vacuum of 1.5 pas, 600 DEG C or so of protective atmosphere heat treatment furnace after compacting Temperature is removed the heat treatment of compacting stress for 40 minutes or so；
(10) it is finally coated in the surface for the powder core that step (9) obtain with modified form epoxy resin paint, obtains motor battery core material Material.
Preferably, the heat treatment process of step (4) is: it first is warming up to 460-520 DEG C under 80%Ar+20%CO atmosphere, Keep the temperature 1-2h；Then in 60%CO2+40%H2It is warming up to 840-880 DEG C under atmosphere, keeps the temperature 3-4h；Again in 50%N2+ 50%Ar atmosphere Under be cooled to 610-660 DEG C, then isothermal be quickly cooled down, cooling velocity be not less than 30 DEG C/min.
Preferably, the stress annealing treatment process of step (6) is: first in 50%N2+50%CO2460- is warming up under atmosphere 540 DEG C, keep the temperature 1-2h；It is warming up to 750-800 DEG C again, keeps the temperature 2-3h；Then in 60%Ar+20%H2It is warming up under+20%CO atmosphere 1050-1100 DEG C, keep the temperature 3-5h；It is cooled to 810-870 DEG C again, keeps the temperature 3-4h；Finally in 70%N2+25%CO2+5%O2Under atmosphere It is warming up to 1160-1220 DEG C, keeps the temperature 4-6h；It is cooled to 890-940 DEG C again, keeps the temperature 3-4h.
The beneficial effects of the present invention are:
A small amount of Cu element that the present invention adds etc. and part Si is replaced with P, main function is the heat treatment later In the process since the cluster of Cu atom promotes nanocrystalline formation, a kind of nanocrystal Dispersed precipitate with bcc structure is formed Alloy on noncrystal substrate has excellent soft magnetic characteristic, can be improved magnetic field strength, reduces magnetic loss.Nb element can be with The frequency of use and temperature stability that the ingredients such as the thermal stability of amorphous microstructure not only can be improved are improved, can also be reduced Its magnetic loss makes soft magnetism motor core material obtained have lower high-frequency loss rate, the loss factor under 100kHz high frequency Lower than 1.2 × 10- 6；Motor core material produced by the present invention also has magnetic conductivity height, saturation flux density height, is in inner temperature The characteristics such as degree.
Specific embodiment
Pass through the technical solution for implementing to go come the present invention will be described in detail in detail below.
Embodiment 1
By pure iron, silicon metal, FeB alloy, FeP alloy, red copper, niobium by mass percentage 85%Fe, 4.8%Si, 8.5%B, 0.3%P alloy, 0.7%Cu, 0.7%Nb carry out ingredient, and ultrasonic wave is then respectively adopted and acetone is cleaned；
(2) the pure iron after above-mentioned cleaning, silicon metal, red copper are put into Efco-Northrup furnace and smelted, risen when being passed through argon gas Temperature puts into FeB alloy, FeP alloy after material whole fusing, puts into niobium rapidly again after material fusing, reaching melting temperature It casts after keeping the temperature 30 minutes after degree；
(3) it is quickly cooled down under isothermal after ingot of casting, cooling velocity is not less than 30 DEG C/min；
By step it is (3) obtained alloy pig is rough and torn is broken into 25 millimeters of material blocks below, then by the material block first in 80%Ar+ It is warming up to 460 DEG C under 20%CO atmosphere, keeps the temperature 1h；Then in 60%CO2+40%H2It is warming up to 840 DEG C under atmosphere, keeps the temperature 3h；Exist again 50%N2610 DEG C are cooled under+50%Ar atmosphere, then isothermal is quickly cooled down, and cooling velocity is not less than 30 DEG C/min.Jaw is used again Formula crusher is broken into the material block less than 5 millimeters, then with 7000rpm high speed ball mill ball milling 15min, is ground into 100 mesh Alloy powder below；
(5) by the alloy powder first in 50%N2+50%CO2It is warming up to 460 DEG C under atmosphere, keeps the temperature 1h；It is warming up to 750 DEG C again, heat preservation 2h；Then in 60%Ar+20%H2It is warming up to 1050 DEG C under+20%CO atmosphere, keeps the temperature 3h；It is cooled to 810 DEG C again, keeps the temperature 3h；Finally In 70%N2+25%CO2+5%O2It is warming up to 1160 DEG C under atmosphere, keeps the temperature 4h；It is cooled to 890 DEG C again, keeps the temperature 3h, carries out stress annealing Processing, is sieved later；
(6) the alloy powder after above-mentioned screening is matched according to the granularity that 100 Mu ︰ of mass ratio, 200 Mu ︰, 300 mesh is 15% ︰, 35% ︰ 50% Than being deployed, it is passivated processing 1h with 8% liquor potassic permanganate later, coating film is formed on the surface of alloy powder, with height Ridge soil insulate；
By etc. quality dehydrated alcohol and ethyl acetate mix, then slowly poured into stirring and the quality such as dehydrated alcohol Magnetic powder bonding agent, until three is mutually dissolved completely up to glue；2.4% glue that will be equivalent to alloy powder quality again is added It in the alloy powder that step (7) obtains, is thoroughly mixed uniformly by blender, after granulation drying, is sieved into less than 40 mesh Powder, then add zinc stearate and make release agent；
(8) the pressure compression moulding in mold in 1000 MPa is added in the alloy powder (7) step obtained, in 1.5 pas After keeping the temperature 15 minutes in vacuum, 450 DEG C or so of protective atmosphere heat treatment furnace the temperature, pressure be 1000 MPa carry out Secondary compacting, kept the temperature in the vacuum of 1.5 pas, 600 DEG C or so of protective atmosphere heat treatment furnace after compacting 40 minutes or so into The heat treatment of row removal compacting stress；
(9) it is finally coated in the surface of (8) powder core that step obtains with modified form epoxy resin paint, obtains motor core material.
Embodiment 2
(1) by pure iron, silicon metal, FeB alloy, FeP alloy, red copper, niobium 85.5%Fe, 4.4 %Si, 8.45% by mass percentage B, 0.25%P alloy, 0.7%Cu, 0.7%Nb carry out ingredient, and ultrasonic wave is then respectively adopted and acetone is cleaned；
(2) the pure iron after above-mentioned cleaning, silicon metal, red copper are put into Efco-Northrup furnace and smelted, risen when being passed through argon gas Temperature puts into FeB alloy, FeP alloy after material whole fusing, puts into niobium rapidly again after material fusing, reaching melting temperature It casts after keeping the temperature 30 minutes after degree；
(3) it is quickly cooled down under isothermal after ingot of casting, cooling velocity is not less than 30 DEG C/min；
By step it is (3) obtained alloy pig is rough and torn is broken into 25 millimeters of material blocks below, then by the material block first in 80%Ar+ It is warming up to 490 DEG C under 20%CO atmosphere, keeps the temperature 1.5h；Then in 60%CO2+40%H2840-880 DEG C is warming up under atmosphere, heat preservation 3.5h；Again in 50%N2635 DEG C are cooled under+50%Ar atmosphere, then isothermal is quickly cooled down, and cooling velocity is not less than 30 DEG C/minute Clock.The material block less than 5 millimeters is broken into jaw crusher again, then with 7000rpm high speed ball mill ball milling 20min, is crushed At 100 mesh alloy powder below；
(5) by the alloy powder first in 50%N2+50%CO2It is warming up to 500 DEG C under atmosphere, keeps the temperature 1.5h；It is warming up to 770 DEG C again, Keep the temperature 2.5h；Then in 60%Ar+20%H2It is warming up to 1100 DEG C under+20%CO atmosphere, keeps the temperature 4h；It is cooled to 840 DEG C again, heat preservation 3.5h；Finally in 70%N2+25%CO2+5%O2It is warming up to 1190 DEG C under atmosphere, keeps the temperature 5h；It is cooled to 920 DEG C again, keeps the temperature 3.5h, Stress annealing processing is carried out, is sieved later；
(6) alloy powder after above-mentioned screening is matched according to the granularity that 100 Mu ︰ of mass ratio, 200 Mu ︰, 300 mesh is 15% ︰, 35% ︰ 50% Than being deployed, it is passivated processing 1h with 8% liquor potassic permanganate later, coating film is formed on the surface of alloy powder, with height Ridge soil insulate；
(7) by etc. quality dehydrated alcohol and ethyl acetate mix, then slowly poured into stirring and the quality such as dehydrated alcohol Magnetic powder bonding agent, until three is mutually dissolved completely up to glue；2.4% glue that will be equivalent to alloy powder quality again adds Enter in the alloy powder that step (7) obtains, is thoroughly mixed uniformly by blender, after granulation drying, is sieved into less than 40 Mesh powder, then add zinc stearate and make release agent；
(8) the pressure compression moulding in mold in 1100MPa is added in the alloy powder for obtaining step (7), in 1.5 pas Two are carried out for 1100MPa in the temperature, pressure after keeping the temperature 15 minutes in vacuum, 450 DEG C or so of protective atmosphere heat treatment furnace Secondary compacting keeps the temperature 40 minutes or so in the vacuum of 1.5 pas, 600 DEG C or so of protective atmosphere heat treatment furnace after compacting and carries out The heat treatment of removal compacting stress；
(9) it is finally coated in the surface for the powder core that step (9) obtain with modified form epoxy resin paint, obtains motor battery core material Material.
Embodiment 3
By pure iron, silicon metal, FeB alloy, FeP alloy, red copper, niobium by mass percentage 86%Fe, 4.1 %Si, 8.2%B, 0.3%P alloy, 0.7%Cu, 0.7%Nb carry out ingredient, and ultrasonic wave is then respectively adopted and acetone is cleaned；
(2) the pure iron after above-mentioned cleaning, silicon metal, red copper are put into Efco-Northrup furnace and smelted, risen when being passed through argon gas Temperature puts into FeB alloy, FeP alloy after material whole fusing, puts into niobium rapidly again after material fusing, reaching melting temperature It casts after keeping the temperature 30 minutes after degree；
(3) it is quickly cooled down under isothermal after ingot of casting, cooling velocity is not less than 30 DEG C/min；
By step it is (3) obtained alloy pig is rough and torn is broken into 25 millimeters of material blocks below, then by the material block first in 80%Ar+ It is warming up to 520 DEG C under 20%CO atmosphere, keeps the temperature 2h；Then in 60%CO2+40%H2It is warming up to 880 DEG C under atmosphere, keeps the temperature 4h；Exist again 50%N2660 DEG C are cooled under+50%Ar atmosphere, then isothermal is quickly cooled down, and cooling velocity is not less than 30 DEG C/min.Jaw is used again Formula crusher is broken into the material block less than 5 millimeters, then with 8000rpm high speed ball mill ball milling 25min, is ground into 100 mesh Alloy powder below；
(5) by the alloy powder first in 50%N2+50%CO2It is warming up to 540 DEG C under atmosphere, keeps the temperature 1-2h；It is warming up to 800 DEG C again, protects Warm 3h；Then in 60%Ar+20%H2It is warming up to 1100 DEG C under+20%CO atmosphere, keeps the temperature 5h；It is cooled to 870 DEG C again, keeps the temperature 4h；Most Afterwards in 70%N2+25%CO2+5%O2It is warming up to 1220 DEG C under atmosphere, keeps the temperature 6h；It is cooled to 940 DEG C again, keeps the temperature 3-4h, carries out stress Annealing, is sieved later；
(6) the alloy powder after above-mentioned screening is matched according to the granularity that 100 Mu ︰ of mass ratio, 200 Mu ︰, 300 mesh is 15% ︰, 35% ︰ 50% Than being deployed, it is passivated processing 1h with 8% liquor potassic permanganate later, coating film is formed on the surface of alloy powder, with height Ridge soil insulate；
By etc. quality dehydrated alcohol and ethyl acetate mix, then slowly poured into stirring and the quality such as dehydrated alcohol Magnetic powder bonding agent, until three is mutually dissolved completely up to glue；2.4% glue that will be equivalent to alloy powder quality again is added It in the alloy powder that step (7) obtains, is thoroughly mixed uniformly by blender, after granulation drying, is sieved into less than 40 mesh Powder, then add zinc stearate and make release agent；
(8) the pressure compression moulding in mold in 1200MPa is added in the alloy powder (7) step obtained, in the true of 1.5 pas It is secondary for 1200MPa progress in the temperature, pressure after keeping the temperature 15 minutes in sky, 450 DEG C or so of protective atmosphere heat treatment furnace Compacting, keeps the temperature 40 minutes or so in the vacuum of 1.5 pas, 600 DEG C or so of protective atmosphere heat treatment furnace after compacting and is gone Except the heat treatment of compacting stress；
(9) it is finally coated in the surface of (8) powder core that step obtains with modified form epoxy resin paint, obtains motor core material.
Comparative example:
The elements such as this comparative example no added Nb, Cu, P prepare high-frequency low-consumption motor core material case as a comparison.It will 86%Fe, 5 %Si, 9%B carry out ingredient by mass percentage by pure iron, silicon metal, FeB, other process conditions are in the same manner as in Example 3.
High-frequency electric machines core material performance detection made from above-mentioned comparative example and embodiment 1-3 is as follows:
As can be seen from the above table, the high-speed motor core material of embodiment 1-3 preparation, the equal > 25000 of magnetic permeability μ i are saturated magnetic Flux density Bs(mT) > 450 mT, the equal < 330KA/m of coercivity H, equal 1.2 × 10-6tan of the < δ/μ i of loss factor, 100kHz；
The elements such as comparative example no added Nb, Cu, P prepare high-frequency low-consumption motor core material maximum permeability μ i, saturation Magnetic flux density Bs(mT) etc. performance indicators significantly lower than 1-3 is implemented, and coercivity H, the performance indicators such as loss factor are apparently higher than Implement 1-3.
As it can be seen that Fe-Si-B base magnetic material, is added the elements such as Nd, P, Cu by supplement, can make by simple technique A kind of standby high-frequency low-consumption motor core material.
Above-described embodiment is only further described the purpose of the present invention, technical scheme and beneficial effects specific A example, present invention is not limited to this.All any modification, equivalent substitution and improvement done within the scope of disclosed by the invention Deng being all included in the scope of protection of the present invention.

Claims (5)

1. a kind of high-frequency low-consumption high-speed motor core material, it is characterised in that: its composition includes 85- by mass percentage 86%Fe, 4-5%Si, 8-9%B, 0.1-0.3%P, 0.7%Cu, 0.7%Nb, remaining is inevitable impurity.
2. the motor core material according to claim 1, it is characterised in that: it is with FeP that the B, which is with FeB alloy, P, The mode of alloy is added.
3. a kind of preparation method of motor core material as claimed in claim 1 or 2, it is characterised in that the following steps are included:
(1) pure iron, silicon metal, FeB alloy, FeP alloy, red copper, niobium are subjected to ingredient by above-mentioned mass percent, then distinguished It is cleaned using ultrasonic wave and acetone；
(2) pure iron after above-mentioned cleaning, silicon metal, red copper are put into Efco-Northrup furnace and is smelted, when being passed through argon gas Heating puts into FeB alloy, FeP alloy after material whole fusing, puts into niobium rapidly again after material fusing, reaching melting It casts after keeping the temperature 30 minutes after temperature；
(3) it is quickly cooled down under isothermal after being cast into alloy pig, cooling velocity is not less than 30 DEG C/min；
(4) 25 millimeters of material blocks below are broken by alloy pig made from step (3) is rough and torn, the material block is then subjected to hot place Reason；
(5) the material block after above-mentioned heat treatment is further broken into the material block less than 5 millimeters with jaw crusher again, then used 6000-8000rpm high speed ball mill ball milling 15-25min, is ground into 100 mesh alloy powder below；
(6) alloy powder is subjected to stress annealing processing, sieved later；
(7) alloy powder after above-mentioned screening is matched according to the granularity that 100 Mu ︰ of mass ratio, 200 Mu ︰, 300 mesh is 15% ︰, 35% ︰ 50% Than being deployed, it is passivated processing 1h with 8% liquor potassic permanganate later, coating film is formed on the surface of alloy powder, with height Ridge soil insulate；
(8) by etc. quality dehydrated alcohol and ethyl acetate mix, then slowly poured into stirring and the quality such as dehydrated alcohol Magnetic powder bonding agent, until three is mutually dissolved completely up to glue；2.4% glue that will be equivalent to alloy powder quality again adds Enter in the alloy powder that step (7) obtains, is thoroughly mixed uniformly by blender, after granulation drying, is sieved into less than 40 Mesh powder, then add zinc stearate and make release agent；
(9) the pressure compression moulding in mold in 1000~1200MPa is added in the alloy powder for obtaining step (8), After keeping the temperature 15 minutes in the vacuum of 1.5 pas, 450 DEG C or so of protective atmosphere heat treatment furnace the temperature, pressure be 1000 ~1200MPa carries out secondary compacting, protects in the vacuum of 1.5 pas, 600 DEG C or so of protective atmosphere heat treatment furnace after compacting Temperature is removed the heat treatment of compacting stress for 40 minutes or so；
(10) it is finally coated in the surface for the powder core that step (9) obtain with modified form epoxy resin paint, obtains motor battery core material Material.
4. the preparation method of motor core material according to claim 3, it is characterised in that: the heat treatment process of step (4) It is: is first warming up to 460-520 DEG C under 80%Ar+20%CO atmosphere, keeps the temperature 1-2h；Then in 60%CO2+40%H2It heats up under atmosphere To 840-880 DEG C, 3-4h is kept the temperature；Again in 50%N2610-660 DEG C is cooled under+50%Ar atmosphere, then isothermal is quickly cooled down, cold But speed is not less than 30 DEG C/min.
5. the preparation method of motor core material according to claim 3, it is characterised in that: at the stress annealing of step (6) Reason process is: first in 50%N2+50%CO2It is warming up to 460-540 DEG C under atmosphere, keeps the temperature 1-2h；It is warming up to 750-800 DEG C again, heat preservation 2-3h；Then in 60%Ar+20%H2It is warming up to 1050-1100 DEG C under+20%CO atmosphere, keeps the temperature 3-5h；It is cooled to 810-870 again DEG C, keep the temperature 3-4h；Finally in 70%N2+25%CO2+5%O2It is warming up to 1160-1220 DEG C under atmosphere, keeps the temperature 4-6h；It is cooled to again 890-940 DEG C, keep the temperature 3-4h.
CN201811164429.9A 2018-10-08 2018-10-08 A kind of high-frequency low-consumption high-speed motor core material and preparation method thereof Pending CN109604587A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110947956A (en) * 2019-11-21 2020-04-03 山东精创磁电产业技术研究院有限公司 Forming process of high-strength and high-permeability soft magnetic composite material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120021222A1 (en) * 2006-02-10 2012-01-26 Kun Lian Carbon-Encased Metal Nanoparticles and Sponges, Methods of Synthesis, and Methods of Use
CN103578736A (en) * 2013-10-28 2014-02-12 任静儿 Soft-magnetic inductive iron core manufacturing method
CN103924169A (en) * 2013-01-14 2014-07-16 江苏奥玛德新材料科技有限公司 Low-cost high-magnetic-conductivity Fe-based nanocrystalline alloy modified by trace rare earth yttrium
CN104934179A (en) * 2014-05-27 2015-09-23 安泰科技股份有限公司 Fe-based nanocrystalline soft magnetic alloy with strong amorphous forming ability and preparing method of Fe-based nanocrystalline soft magnetic alloy
CN105261435A (en) * 2015-10-16 2016-01-20 网为新材料（邳州）有限公司 Fe-based amorphous and nanocrystalline soft magnetic alloy ribbon and preparation method thereof
CN108461246A (en) * 2018-02-07 2018-08-28 河南中岳非晶新型材料股份有限公司 A kind of iron base amorphous magnetically-soft alloy and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120021222A1 (en) * 2006-02-10 2012-01-26 Kun Lian Carbon-Encased Metal Nanoparticles and Sponges, Methods of Synthesis, and Methods of Use
CN103924169A (en) * 2013-01-14 2014-07-16 江苏奥玛德新材料科技有限公司 Low-cost high-magnetic-conductivity Fe-based nanocrystalline alloy modified by trace rare earth yttrium
CN103578736A (en) * 2013-10-28 2014-02-12 任静儿 Soft-magnetic inductive iron core manufacturing method
CN104934179A (en) * 2014-05-27 2015-09-23 安泰科技股份有限公司 Fe-based nanocrystalline soft magnetic alloy with strong amorphous forming ability and preparing method of Fe-based nanocrystalline soft magnetic alloy
CN105261435A (en) * 2015-10-16 2016-01-20 网为新材料（邳州）有限公司 Fe-based amorphous and nanocrystalline soft magnetic alloy ribbon and preparation method thereof
CN108461246A (en) * 2018-02-07 2018-08-28 河南中岳非晶新型材料股份有限公司 A kind of iron base amorphous magnetically-soft alloy and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110947956A (en) * 2019-11-21 2020-04-03 山东精创磁电产业技术研究院有限公司 Forming process of high-strength and high-permeability soft magnetic composite material
CN110947956B (en) * 2019-11-21 2021-05-14 山东精创磁电产业技术研究院有限公司 Forming process of high-strength and high-permeability soft magnetic composite material

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Application publication date: 20190412