CN107045910B - A kind of Nd-Fe-B thin strip magnet and preparation method thereof - Google Patents
A kind of Nd-Fe-B thin strip magnet and preparation method thereof Download PDFInfo
- Publication number
- CN107045910B CN107045910B CN201710189346.4A CN201710189346A CN107045910B CN 107045910 B CN107045910 B CN 107045910B CN 201710189346 A CN201710189346 A CN 201710189346A CN 107045910 B CN107045910 B CN 107045910B
- Authority
- CN
- China
- Prior art keywords
- alloy
- phase
- thin strip
- magnetic
- strip magnet
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
A kind of Nd-Fe-B thin strip magnet of the present invention and preparation method thereof, is related to rare-earth iron-based permanent-magnet alloy, and the element constituent general formula of the Nd-Fe-B thin strip magnet is NdaFebBcAldNieCofCugTihSiiNbj, by adding different amounts of Alnico alloy in Nd-Fe-B composition of alloy, regularly multiple elements design addition Alnico composition of alloy element is equivalent in Nd-Fe-B alloy, preparing element constituent general formula is NdaFebBcAldNieCofCugTihSiiNbjNd-Fe-B thin strip magnet, after overcoming prior art addition single-element, improving magnet material one kind or limited several performances simultaneously, it will lead to other reduced performances or variation, to make performance differ greatly compared with theoretical value, it when adding multiple element simultaneously, and can be followed without rule, study the defect made troubles to be subsequent.
Description
Technical field
Technical solution of the present invention is related to rare-earth iron-based permanent-magnet alloy, specifically a kind of Nd-Fe-B thin strip magnet and
Preparation method.
Background technique
Nd-Fe-B system alloy is a kind of rare-earth iron-based serial permanent-magnet material, has the characteristics such as cheap, magnetic property is high.
In recent years, the application field of neodymium iron boron is constantly expanded, in particular with using information industry as the knowledge economy development of representative, in addition to
Computer, printer, mobile phone, household electrical appliance, in terms of be widely applied outer, starting in automobile is mechanical, electrical
The application of motivation and sound system is also especially extensive.
In order to further increase the magnetic property of Nd-Fe-B permanent magnet material, scientific research personnel is used in Nd-Fe-B permanent magnet magnetic at present
Property material in reasonably add micro-structure and magnetic of a kind of or the various other elements of compound addition the methods as improvement material
A kind of very effective means of performance.Zhang et al. (Zhang S Y, Xu H, Ni J S, et al.Microstructure
refinement and magnetic property enhancement for nanocomposite Nd2Fe14B/α-Fe
alloys by Co and Zr additions,Physical B Condensed Matter.2007,393(1):153-
157) to alloy Nd9.5Fe84B6.5And Nd9.5Fe79Co5B6.5The addition of comparative study Co element to neodymium iron boron strip magnetic property and
The effect of micro-structure, the results showed that the Co element of addition is evenly distributed between soft hard magnetic phase, passes through refinement crystal grain and raising
Exchange-coupling interaction between soft/hard magnetic improves the coercivity and remanent magnetism of alloy thin band.Wherein, Nd9.5Fe84B6.5Magnetism
It can are as follows: Br=0.87T, Hc=318kA/m, (BH)max=77kJ/m3, add Nd after Co9.5Fe79Co5B6.5Magnetic property are as follows: Br
=0.8-1T, Hc=445kA/m, (BH)max=104kJ/m3.Ma et al. (Ma Y G, Li R S, Yang Z, et
al.Effects of additive elements(Cu,Zr,Al)on morphological and magnetic
properties of NdFeB thin films with perpendicular magnetic anisotropy,
Materials Science and Engineering B, 2005,117:287-290) using the alloy of three kinds of ingredients
Nd16.2Fe71.8B12.0、Nd16.2Fe70.8B12.0Cu1.0、Nd16.2Fe66.8B12.0Al5.0Cu or Al element is had studied to neodymium iron boron strip
Influence, the results showed that on the one hand the diffusion of Nd, Fe and B element in hard magnetic phase can be accelerated by adding suitable Cu, increase soft
The nucleation mass point of magnetic phase, while crystal grain can be refined, Hc is improved, but obviously crystal grain is made to become larger after excessive Cu is added；It is added
Al element can significantly improve the crystallite dimension of strip.Wherein, Nd16.2Fe71.8B12.0Magnetic property are as follows: Br=521 ±
36kA/m, Hc=380kA/m, (BH)max=77kJ/m3, add Nd after Cu16.2Fe70.8B12.0Cu1.0Magnetic property are as follows: Ms=
582 ± 41kA/m, Hc=487kA/m add Nd after Al16.2Fe66.8B12.0Al5.0Magnetic property be Ms=482 ± 34kA/m, Hc
=279kA/m.It is past while improving a kind of or limited several performances of magnet material but after adding single element
Toward the reduction or variation that will lead to other performances, so that performance be made to differ greatly compared with theoretical value.CN104240885A is disclosed
A kind of method that NdFeB prepares nanometer two-phase composite permanent-magnetic material and preparation, composition range FeaNdbBcMd, M be selected from
At least one of Co, Nb, Ti, Zr and Cu element or multiple element；A, b, c and d indicate the atomic percent of corresponding component
Number, 80≤a≤83,8≤b≤10,5≤c≤6.5,2≤d≤4, and a+b+c+d=100, although the prior art is in certain journey
Making the internal microstructure of NdFeB nanometers of two-phase composite permanent-magnetic materials on degree is improved, and internal microstructure is managed close to micro-structure
Think model, the exchange-coupling interaction between soft magnetic phase and hard magnetic phase is enhanced, and magnetic property gets a promotion, but in this method
Do not point out how could in Nd-Fe-B alloy regularly compound addition multiple element, brought not for subsequent research
Just.
In short, existing literature it can be shown that currently existing technology in order to further increase the magnetic property of Nd-Fe-B alloy,
Often using the method at least adding a kind of or compound addition multiple element, the optimization of micro-structure and the improvement of performance are carried out,
But after adding single element, while improving a kind of or limited several performances of magnet material, it frequently can lead to
The reduction or variation of his performance, so that performance be made to differ greatly compared with theoretical value, while when adding multiple element, and without rule
It can follow, make troubles for subsequent research, so far still without finding document report how regularly compound addition multiple element.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of Nd-Fe-B thin strip magnet and preparation method thereof, the Nd-
The element constituent general formula of Fe-B thin strip magnet is NdaFebBcAldNieCofCugTihSiiNbj, by Nd-Fe-B alloy group
At the middle different amounts of Alnico alloy of addition, it is equivalent in Nd-Fe-B alloy regularly multiple elements design addition Alnico and closes
Golden component, preparing element constituent general formula is NdaFebBcAldNieCofCugTihSiiNbjNd-Fe-B strip magnetic
Body overcomes after the prior art adds single element, while improving a kind of or limited several performances of magnet material,
The reduction or variation that frequently can lead to other performances, so that performance be made to differ greatly compared with theoretical value, while adding multiple element
When, and can be followed without rule, the defect made troubles is studied to be subsequent.
The present invention solves technical solution used by the technical problem: a kind of Nd-Fe-B thin strip magnet, constituent
General formula be NdaFebBcAldNieCofCugTihSiiNbj, wherein a, b, c, d, e, f, g, h, i and j indicate corresponding component
Atomic percentage, satisfaction 10.45≤a≤11.36,76.77≤b≤82.16,5.24≤c≤9.7,0.09≤d≤1.65,
0.07≤e≤1.31,0.12≤f≤3.62,0.01≤g≤0.28,0.01≤h≤0.03,0.01≤i≤0.4,0.01≤j
≤ 0.62, and a+b+c+d+e+f+g+h+i+j=100；The magnetic property of the strip are as follows: coercivity is 52.1~996kA/m, remanent magnetism
For for 0.21~1.34T, magnetic energy product is 10.2~160kJ/m3；The strip with a thickness of 20~80 μm；The principal crystalline phase of the strip
Average grain size be 20~150nm.
A kind of preparation method of above-mentioned Nd-Fe-B thin strip magnet, it is different amounts of by being added in Nd-Fe-B composition of alloy
Alnico alloy is equivalent in Nd-Fe-B alloy regularly multiple elements design addition Alnico composition of alloy element, prepares
Element constituent general formula is NdaFebBcAldNieCofCugTihSiiNbjNd-Fe-B thin strip magnet, the specific steps are as follows:
The first step, raw material are prepared:
According to the content of each element after the different amounts of Alnico alloy added in Nd-Fe-B alloy, alloy is calculated
In each element atomic percentage content, with general formula NdaFebBcAldNieCofCugTihSiiNbjIt is indicated, then according to original
Sub- percentage composition calculates NdaFebBcAldNieCofCugTihSiiNbjThe mass percent of component, claims by mass percentage
The pure Nd of component raw material, pure Fe, pure Al, pure Ni, pure Co, pure Cu, pure Ti, pure Si, Fe-B alloy and Fe-Nb alloy are taken, it is thus complete
It is prepared at raw material, in general formula NdaFebBcAldNieCofCugTihSiiNbjIn, a, b, c, d, e, f, g, h, i and j indicate respective sets
At the atomic percentage of element, meet 10.45≤a≤11.36,76.77≤b≤82.16,5.24≤c≤9.7,0.09≤d≤
1.65,0.07≤e≤1.31,0.12≤f≤3.62,0.01≤g≤0.28,0.01≤h≤0.03,0.01≤i≤0.4,
0.01≤j≤0.62, and a+b+c+d+e+f+g+h+i+j=100, in the raw material of above-mentioned constituent B using Fe-B alloy as
Raw material, wherein the content of B is 18~21% (mass percents), and Nb is using Fe-Nb alloy as raw material, and wherein the content of Nb is 50
~80% (mass percent)；
Second step, melt raw material prepare mother alloy ingot:
The prepared raw material of the first step is all put into the crucible of vacuum arc melting furnace or vacuum induction melting furnace, is melted
5 × 10 first are evacuated down to furnace body when refining-2Pa is hereinafter, furnace temperature is elevated above the peak melting point of raw metal, until whole raw materials
Metal Melting is uniform, obtains the uniform Nd of meltingaFebBcAldNieCofCugTihSiiNbjMelt, then by the melt in water cooling
It is cooling in copper crucible, Nd is madeaFebBcAldNieCofCugTihSiiNbjMother alloy ingot；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second stepaFebBcAldNieCofCugTihSiiNbjMother alloy ingot is fitted into fast melt-quenching furnace, weight
Fast melt-quenching is carried out on the cooling molybdenum roller or copper roller of the peripheral speed rotation with 5~50m/s after new melting, is thus made
With a thickness of 20~80 μm of NdaFebBcAldNieCofCugTihSiiNbjNd-Fe-B thin strip magnet product；The thin strip magnet produces
The magnetic property of product are as follows: coercivity is 52.1~996kA/m, and remanent magnetism is 0.21~1.34T, and magnetic energy product is 10.2~160kJ/
m3；The thin strip magnet product with a thickness of 20~80 μm；The average grain size of the principal crystalline phase of the thin strip magnet product be 20~
150nm。
A kind of preparation method of above-mentioned Nd-Fe-B thin strip magnet, used raw material is all commercially available, used
To equipment be well known chemical industry equipment, used process operation is known to those skilled in the art
's.
The beneficial effects of the present invention are: compared with prior art, the present invention has substantive distinguishing features outstanding as follows:
(1) present invention provides a kind of Nd-Fe-B thin strip magnet and preparation method thereof, adds in Nd-Fe-B alloy different
The Alnico alloy of amount is equivalent to the regular multiple elements design addition Alnico composition of alloy element in Nd-Fe-B alloy.?
It is found after multiple elements design addition Alnico composition of alloy element in Nd-Fe-B alloy, Alnico composition of alloy element is in alloy-based
Spinodal decomposition has occurred in body, it is mutually equal multiple with weak magnetic or nonmagnetic rich (Al, Ni) to generate ferromagnetic rich (Fe, Co)
Object phase, while the component of multiple elements design addition Alnico alloy, facilitate the amorphous phase that certain content is formed in strip.
It is collectively constituted to be obtained in the present invention by hard magnetic phase, soft magnetism phase, weak magnetic phase or non-magnetic phase and part amorphous phase
Alloy system promote Nd-Fe-B thin strip magnet that there is good Hard Magnetic by the collective effect of coupling mechanism, pinning mechanism
Performance.
(2) Alnico alloy is a kind of good alloy of magnetic stability, and component is: Al, Ni, Co, Cu, Fe, Ti,
Si,Nb.Hao et al. (Hao S M, Takayama T, Ishida K, et al.Miscibility gap in Fe-Ni-Al
and Fe-Ni-Al-Co systems.Metallurgical and Materials Transactions A,1984,15
) and Chu et al. (Chu W G, Fei W D, Yang D Z.Microstructural evolution (10): 1819-1828
and magnetic properties of the Alnico8alloy thermomagnetically treated at
High temperature, Materials Letters, 2000,44 (6): 325-329) find that Alnico alloy can occur
Spinodal decomposition, generate ferromagnetic rich (Fe, Co) mutually with weak magnetic or nonmagnetic rich (Al, Ni) phase.Fingers et al.
(Fingers,R T,Rubertus,C S.Application of high temperature magnetic materials,
IEEE Transactions on Magnetics, 2000,36, (5): 3373-3375) discovery is using Fe and Co as major components
Magnetically soft alloy is a kind of alloying component that performance is very excellent.Sun et al. (Sun Y, Han G B, Liu M, et
al.Intergranular phase dependence of anisotropy and coercivity in nanoscaled
Permanent magnets, Materials Letters, 2007,61 (21): 4294-4296) have studied it is non magnetic between crystal boundary
It is found after the effect of phase, intergranular non-magnetic phase appropriate can not only improve the coercivity of material, additionally it is possible to improve the comprehensive of material
Close magnetic property.By the spin-exchange-coupled length formula L of nanometer crystal phaseex=π (A/K)1/2(wherein, A is exchange strength constant, and K is crystalline substance
Grain magnetocrystalline anisotropy constant) as can be seen that soft/hard magnetic phase between spin-exchange-coupled range than the friendship between hard magnetic phase
Changing coupling range will greatly, so the intergranular non-magnetic phase that grain boundaries form suitable thickness can both have substantially no effect on soft/Hard Magnetic
Property while be exchanged coupling, additionally it is possible to effectively weaken the coupling between hard magnetic phase, to both can guarantee nanometer
The remanence curve of composite permanent-magnetic material, and the coercivity of material can be effectively improved.As it can be seen that 1. Alnico alloy be by Fe, Al,
The elements such as Ni, Co, Cu, Ti, Nb composition.Wherein Fe, Co, Ni are the pure elements with highest magnetic moment, and the Fe- of its composition
Co phase has highest magnetic moment, and Fe and Ni are the main components with the permalloy of high saturation and magnetic intensity, in addition,
The addition of the elements such as Al, Cu, Ti, Nb has great importance to the micro-structure and magnetic property of optimization Nd-Fe-B alloy；2. due to
A degree of spinodal decomposition occurs during the preparation process for meeting for Alnico composition of alloy element composition, generates ferromagnetic richness
(Fe, Co) mutually with weak magnetic or nonmagnetic rich (Al, Ni) equal multiple object phases, while multiple elements design addition Alnico alloy
Component facilitates the amorphous phase that certain content is formed in strip.
(3) cooling velocity of fast melt-quenching is up to 104~106DEG C/s, it is a kind of material preparation means that cooling rate is exceedingly fast.It is right
In NdaFebBcAldNieCofCugTihSiiNbjAlloy, after fast melt-quenching, since melt cooling velocity is fast, strip is along roller
The direction cooling velocity of wheel radial is most fast, and then along the thickness direction of strip, crystal grain is perpendicular to strip plane preferentially long great achievement
The column crystal of larger volume ratio.After rapid quenching, alloy thin band is by hard magnetic phase, soft magnetism phase, weak magnetic phase, non-magnetic phase
And part amorphous phase composition, these phases it is common exist form novel nanocomposite micro-structure, wherein hard magnetic phase
There is more preferably exchange-coupling interaction between soft magnetism phase, the remanent magnetism of strip can be improved；Weak magnetic phase or non-magnetic phase pair
The movement of the neticdomain wall of main phase plays pinning effect, and the coercivity of strip can be improved；And permitted in crystalline phases and noncrystal substrate
The intercoupling of more nanoclusters, the interaction between crystalline phases and Amorphous Phase promote material to have better hard magnetic property.
By the multiple elements design addition Alnico composition of alloy element in Nd-Fe-B alloy in the present invention, while controlling mother
Tape speed is got rid of when alloy sprays band, equal to the crystallization process of alloy is controlled, to make to be formd in strip by multiple object phase structures
At Modern Nanocrystalline composite microstructure, be finally obtained excellent hard magnetic property.
Compared with prior art, the marked improvement that the present invention has is as follows:
(1) after adding single element the present invention overcomes the prior art, improving a kind of or limited several of material
While performance, the reduction or variation that frequently can lead to other performances add simultaneously so that performance be made to differ greatly compared with theoretical value
It when adding multiple element, and can be followed without rule, study the defect made troubles to be subsequent.
(2) Nd-Fe-B thin strip magnet product of the invention has excellent hard magnetic property, the magnetic property of the strip product
Maximum value are as follows: coercivity 996kA/m, remanent magnetism 1.34T, magnetic energy product 160kJ/m3；It has been more than the Nd- of prior art preparation
The maximum value of the magnetic property of Fe-B strip: coercivity 900kA/m, remanent magnetism 1.2T, magnetic energy product 140kJ/m3。
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is Nd obtained in embodiment 111.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01's
The X-ray diffractogram of Nd-Fe-B thin strip magnet product.
Fig. 2 is Nd obtained in embodiment 111.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01's
The hysteresis loop of Nd-Fe-B thin strip magnet product.
Fig. 3 is Nd obtained in embodiment 111.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01's
The transmission electron microscope picture of Nd-Fe-B thin strip magnet product, in which:
Fig. 3 (a) is low power transmission image.
Fig. 3 (b) is high power transmission image.
Fig. 3 (c) is high power transmission image.
Fig. 4 is Nd obtained in embodiment 611.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Nd-
The X-ray diffractogram of Fe-B thin strip magnet product.
Fig. 5 is Nd obtained in embodiment 611.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Nd-
The hysteresis loop of Fe-B thin strip magnet product.
Fig. 6 is Nd obtained in embodiment 711.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22's
The X-ray diffractogram of Nd-Fe-B thin strip magnet product.
Fig. 7 is Nd obtained in embodiment 711.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22's
The hysteresis loop of Nd-Fe-B thin strip magnet product.
Fig. 8 is Nd obtained in embodiment 810.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62's
The X-ray diffractogram of Nd-Fe-B thin strip magnet product.
Fig. 9 is Nd obtained in embodiment 810.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62's
The hysteresis loop of Nd-Fe-B thin strip magnet product.
Specific embodiment
Embodiment 1
The first step, raw material are prepared:
According to the content of each element after the addition Alnico alloy in Nd-Fe-B alloy, each element in alloy is calculated
Atomic percentage content, use Nd11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01It is indicated, then
Nd is calculated according to atomic percentage content11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Middle composition member
The mass percent of element weighs the pure Nd of component raw material, pure Fe, pure Al, pure Ni, pure Co, pure Cu, pure Ti, pure by mass percentage
Thus Si, Fe-B alloy and Fe-Nb alloy are completed raw material and are prepared, B is using Fe-B alloy as original in the raw material of above-mentioned constituent
Material, wherein the content of B is 18~21% (mass percents), Nb using Fe-Nb alloy as raw material, wherein the content of Nb for 50~
80% (mass percent)；
Second step, melt raw material prepare mother alloy ingot:
The prepared raw material of the first step is all put into the crucible of vacuum arc melting furnace, first furnace body is taken out when melting true
Sky is to 5 × 10-2Pa until whole raw metal meltings are uniform, is obtained hereinafter, furnace temperature is elevated above the peak melting point of raw metal
The uniform Nd of melting11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Then melt exists the melt
It is cooling in water jacketed copper crucible, as cast condition Nd is made11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Mother closes
Golden ingot casting；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second step11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 40m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 906kA/m, remanent magnetism are as follows: 0.84T, magnetic energy product
Are as follows: 105.2kJ/m3, the thin strip magnet product with a thickness of 30 μm, the average grain size of the principal crystalline phase of the thin strip magnet product
For 35nm.
Nd made from the present embodiment11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-
The X-ray diffractogram of B thin strip magnet product as shown in Figure 1, hysteresis loop as shown in Fig. 2, images of transmissive electron microscope is as shown in Figure 3.
As shown in Figure 1, Nd made from the present embodiment11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01
Nb0.01Nd-Fe-B thin strip magnet product diffraction maximum feature it is obvious, show that there are crystalline phases in fast quenching thin strap, and pass through
Its composition of diffraction maximum calibration discovery is mutually hard magnetic phase Nd2Fe14B, soft magnetic phase Fe7Co3And weak magnetic phase or non-magnetic phase Al3Ni。
As shown in Figure 2, Nd made from the present embodiment11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01
Nb0.01The hysteresis loop of Nd-Fe-B thin strip magnet product show as the smooth demagnetizing curve of single Hard Magnetic phase character, illustrate fast
Stronger exchange-coupling interaction is produced in quenched alloy strip between soft magnetic phase and hard magnetic phase, so that the ingredient fast quenching thin strap be made to have
There is excellent magnetic property are as follows: Hcj=906kA/m, Br=0.84T, Br/Bs=0.67, (BH) max=105.2kJ/m3。
As Fig. 3 (a) it is found that Nd made from the present embodiment11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.0 1Nb0.01Nd-Fe-B thin strip magnet product, the crystallite dimension fine uniform of phase, average-size between 20~35nm, and
There is the presence of a small amount of amorphous phase between crystal grain, the presence of amorphous phase, which has, inhibits growing up and crystal grain being promoted to be uniformly distributed for crystal grain
Effect.It is found after analyzing the diffraction fringe of Fig. 3 (b) He Fig. 3 (c) sum, the fast quenching thin strap is by Nd2Fe14B phase, Fe7Co3
Phase and Al3Ni phase composition.
Embodiment 2
The first step, raw material are prepared:
With embodiment 1；
Second step, melt raw material prepare mother alloy ingot:
With embodiment 1；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second step11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 5m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.36Fe81.1.7B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-
B thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 52.1kA/m, remanent magnetism are as follows: 0.21T, magnetic energy
Product are as follows: 10.2kJ/m3, the thin strip magnet product with a thickness of 78 μm, the average crystal grain ruler of the principal crystalline phase of the thin strip magnet product
Very little is 150nm.
Embodiment 3
The first step, raw material are prepared:
With embodiment 1；
Second step, melt raw material prepare mother alloy ingot:
With embodiment 1；
Third step, the preparation of Nd-Fe-B thin strip magnet:
By Nd made from second step11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 20m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 296.6kA/m, remanent magnetism are as follows: 0.42T, magnetic energy
Product are as follows: 26.0kJ/m3, the thin strip magnet product with a thickness of 52 μm, the average crystal grain ruler of the principal crystalline phase of the thin strip magnet product
Very little is 120nm.
Embodiment 4
The first step, raw material are prepared:
With embodiment 1；
Second step, melt raw material prepare mother alloy ingot:
With embodiment 1；
Third step, the preparation of Nd-Fe-B thin strip magnet:
By Nd made from second step11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 30m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 356.1kA/m, remanent magnetism are as follows: 0.68T, magnetic energy
Product are as follows: 33.4kJ/m3, the thin strip magnet product with a thickness of 48 μm, the average crystal grain ruler of the principal crystalline phase of the thin strip magnet product
Very little is 60nm.
Embodiment 5
The first step, raw material are prepared:
With embodiment 1；
Second step, melt raw material prepare mother alloy ingot:
With embodiment 1；
Third step, the preparation of Nd-Fe-B thin strip magnet:
By Nd made from second step11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 50m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 684.4kA/m, remanent magnetism are as follows: 0.28T, magnetic energy
Product are as follows: 36.8kJ/m3, the thin strip magnet product with a thickness of 20 μm, the average crystal grain ruler of the principal crystalline phase of the thin strip magnet product
Very little is 25nm.
Obtained Nd in Examples 1 to 511.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01Nb0.01's
The average grain size parameter of the magnetic property of Nd-Fe-B thin strip magnet product, thickness and principal crystalline phase is shown in Table 1.
The Nd obtained under different FFR'S fuel assemblies of table 1.11.36Fe81.17B5.67Al0.54Ni0.40Co0.74Cu0.09Ti0.01Si0.01
Nb0.01The magnetic property of Nd-Fe-B thin strip magnet product, thickness and principal crystalline phase average grain size
Embodiment 6
The first step, raw material are prepared:
According to the content of each element after the addition Alnico alloy in Nd-Fe-B alloy, each element in alloy is calculated
Atomic percentage content, use Nd11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Be indicated, then according to
Atomic percentage content calculates Nd11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4The quality of middle component
Percentage weighs the pure Nd of component raw material, pure Fe, pure Al, pure Ni, pure Co, pure Cu, pure Ti, pure Si, Fe-B conjunction by mass percentage
Thus gold and Fe-Nb alloy are completed raw material and are prepared, B is using Fe-B alloy as raw material in the raw material of above-mentioned constituent, wherein B
Content be 18~21% (mass percents), Nb using Fe-Nb alloy as raw material, wherein the content of Nb be 50~80% (matter
Measure percentage)；
Second step, melt raw material prepare mother alloy ingot:
The prepared raw material of the first step is all put into the crucible of vacuum arc melting furnace, first furnace body is taken out when melting true
Sky is to 5 × 10-2Pa until whole raw metal meltings are uniform, is obtained hereinafter, furnace temperature is elevated above the peak melting point of raw metal
The uniform Nd of melting11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Melt, then by the melt in water-cooled copper
It is cooling in crucible, as cast condition Nd is made11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Mother alloy ingot；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second step11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Mother alloy ingot dress
Enter in fast melt-quenching furnace, carries out fast melt-quenching on the cooling molybdenum roller of the peripheral speed rotation with 40m/s after re-melting, make
Obtaining element constituent is Nd11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Nd-Fe-B thin strip magnet produce
Product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 996kA/m, remanent magnetism are as follows: 0.82T, magnetic energy product are as follows: 95.2kJ/
m3；The strip with a thickness of 30 μm；The average grain size of the principal crystalline phase of the strip is 20nm.
It is Nd that element constituent, which is made, in the present embodiment11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4
Nd-Fe-B thin strip magnet product X-ray diffractogram as shown in figure 4, hysteresis loop is as shown in Figure 5.
Fig. 4 shows, Nd made from the present embodiment11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Nd-
The diffraction maximum feature of Fe-B thin strip magnet product is obvious, shows that there are crystalline phases in fast quenching thin strap, and is demarcated by diffraction maximum
It was found that its composition is mutually hard magnetic phase Nd2Fe14B, soft magnetic phase Fe7Co3And weak magnetic phase or non-magnetic phase Al3Ni。
Fig. 5 shows, Nd made from the present embodiment11.0Fe76.8B9.7Al0.48Ni0.4Co0.7Cu0.1Ti0.02Si0.4Nb0.4Nd-
The hysteresis loop of Fe-B thin strip magnet product shows as the smooth demagnetizing curve of single Hard Magnetic phase character, illustrates melt spun alloy strip
Stronger exchange-coupling interaction is produced between interior soft magnetic phase and hard magnetic phase, to make the ingredient fast quenching thin strap that there is excellent magnetic
Performance are as follows: Hcj=996kA/m, Br=0.82T, Br/Bs=0.67, (BH) max=95.2kJ/m3。
Embodiment 7
The first step, raw material are prepared:
According to the content of each element after the addition Alnico alloy in Nd-Fe-B alloy, each element in alloy is calculated
Atomic percentage content, use Nd11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22It is indicated, then
Nd is calculated according to atomic percentage content11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22Middle composition member
The mass percent of element weighs the pure Nd of component raw material, pure Fe, pure Al, pure Ni, pure Co, pure Cu, pure Ti, pure by mass percentage
Thus Si, Fe-B alloy and Fe-Nb alloy are completed raw material and are prepared, B is using Fe-B alloy as original in the raw material of above-mentioned constituent
Material, wherein the content of B is 18~21% (mass percents), Nb using Fe-Nb alloy as raw material, wherein the content of Nb for 50~
80% (mass percent)；
Second step, melt raw material prepare mother alloy ingot:
The prepared raw material of the first step is all put into the crucible of vacuum induction melting furnace, first furnace body is taken out when melting true
Sky is to 5 × 10-2Pa until whole raw metal meltings are uniform, is obtained hereinafter, furnace temperature is elevated above the peak melting point of raw metal
The uniform Nd of melting11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22Melt, then by the melt in water
It is cooling in cold copper crucible, as cast condition Nd is made11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22Master alloy casting
Ingot；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second step11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling copper roller of the peripheral speed rotation with 40m/s after re-melting
It quenches, it is Nd that element constituent, which is made,11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 958kA/m, remanent magnetism are as follows: 0.92T, magnetic energy product
Are as follows: 143.4kJ/m3；The strip with a thickness of 40 μm；The average grain size of the principal crystalline phase of the strip is 30nm.
It is Nd that element constituent, which is made, in the present embodiment11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3
Nb0.22Nd-Fe-B thin strip magnet product X-ray diffractogram as shown in fig. 6, hysteresis loop is as shown in Figure 7.
Fig. 6 shows, Nd made from the present embodiment11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22
Nd-Fe-B thin strip magnet product diffraction maximum feature it is obvious, show that there are crystalline phases in fast quenching thin strap, and pass through diffraction maximum
Its composition of calibration discovery is mutually hard magnetic phase Nd2Fe14B, soft magnetic phase Fe7Co3And weak magnetic phase or non-magnetic phase Al3Ni。
Fig. 7 shows, Nd made from the present embodiment11.2Fe82.16B5.81Al0.09Ni0.07Co0.12Cu0.01Ti0.01Si0.3Nb0.22
The hysteresis loop of Nd-Fe-B thin strip magnet product show as the smooth demagnetizing curve of single Hard Magnetic phase character, illustrate that fast quenching closes
Stronger exchange-coupling interaction is produced in golden strip between soft magnetic phase and hard magnetic phase, so that it is excellent to have the ingredient fast quenching thin strap
Different magnetic property are as follows: Hcj=958kA/m, Br=0.92T, Br/Bs=0.75, (BH) max=143.4kJ/m3。
Embodiment 8
The first step, raw material are prepared:
According to the content of each element after the addition Alnico alloy in Nd-Fe-B alloy, each element in alloy is calculated
Atomic percentage content, use Nd10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62It is indicated, then
Nd is calculated according to atomic percentage content10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62Middle composition member
The mass percent of element weighs the pure Nd of component raw material, pure Fe, pure Al, pure Ni, pure Co, pure Cu, pure Ti, pure by mass percentage
Thus Si, Fe-B alloy and Fe-Nb alloy are completed raw material and are prepared, B is using Fe-B alloy as original in the raw material of above-mentioned constituent
Material, wherein the content of B is 18~21% (mass percents), Nb using Fe-Nb alloy as raw material, wherein the content of Nb for 50~
80% (mass percent)；
Second step, melt raw material prepare mother alloy ingot:
The prepared raw material of the first step is all put into the crucible of vacuum induction melting furnace, first furnace body is taken out when melting true
Sky is to 5 × 10-2Pa until whole raw metal meltings are uniform, is obtained hereinafter, furnace temperature is elevated above the peak melting point of raw metal
The uniform Nd of melting10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62Then melt exists the melt
It is cooling in water jacketed copper crucible, as cast condition Nd is made10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62Mother closes
Golden ingot casting；
Third step, the preparation of Nd-Fe-B thin strip magnet product:
By Nd made from second step10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62Master alloy casting
Ingot is fitted into fast melt-quenching furnace, and it is fast to carry out melt on the cooling molybdenum roller of the peripheral speed rotation with 40m/s after re-melting
It quenches, it is Nd that element constituent, which is made,10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62Nd-Fe-B
Thin strip magnet product；The magnetic property of the thin strip magnet product are as follows: intrinsic coercivity 958kA/m, remanent magnetism are as follows: 0.92T, magnetic energy product
Are as follows: 143.4kJ/m3；The strip with a thickness of 40 μm；The average grain size of the principal crystalline phase of the strip is 30nm.
It is Nd that constituent, which is made, in the present embodiment10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62
Nd-Fe-B thin strip magnet product X-ray diffractogram as shown in figure 8, hysteresis loop is as shown in Figure 9.
Fig. 8 shows, Nd made from the present embodiment10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62
Nd-Fe-B thin strip magnet product diffraction maximum feature it is obvious, show that there are crystalline phases in fast quenching thin strap, and pass through diffraction maximum
Its composition of calibration discovery is mutually hard magnetic phase Nd2Fe14B, soft magnetic phase Fe7Co3And weak magnetic phase or non-magnetic phase Al3Ni。
Fig. 9 shows, Nd made from the present embodiment10.45Fe76.77B5.24Al1.65Ni1.31Co3.62Cu0.28Ti0.03Si0.03Nb0.62
The hysteresis loop of Nd-Fe-B thin strip magnet product show as the smooth demagnetizing curve of single Hard Magnetic phase character, illustrate that fast quenching closes
Stronger exchange-coupling interaction is produced in golden strip between soft magnetic phase and hard magnetic phase, so that it is excellent to have the ingredient fast quenching thin strap
Different magnetic property are as follows: Hcj=962kA/m, Br=0.89T, Br/Bs=0.68, (BH) max=121.8kJ/m3。
In above-described embodiment, used raw material is all commercially available, and used equipment is well knownization
Construction equipment, used process operation are known to those skilled in the art.
Claims (1)
1. a kind of Nd-Fe-B thin strip magnet, it is characterised in that: the general formula of its constituent is
NdaFebBcAldNieCofCugTihSiiNbj, wherein a, b, c, d, e, f, g, h, i and j indicate the atomic percent of corresponding component
Number, meet 10.45≤a≤11.36,76.77≤b≤82.16,5.24≤c≤9.7,0.09≤d≤1.65,0.07≤e≤
1.31,0.12≤f≤3.62,0.01≤g≤0.28,0.01≤h≤0.03,0.01≤i≤0.4,0.01≤j≤0.62, and a
+ b+c+d+e+f+g+h+i+j=100；The Nd-Fe-B thin strip magnet is that different amounts of Alnico is added in Nd-Fe-B alloy
Alloy is equivalent to the regular multiple elements design addition Alnico composition of alloy element in Nd-Fe-B alloy, closes in Nd-Fe-B
It is found after multiple elements design addition Alnico composition of alloy element in gold, Alnico composition of alloy element has occurred in alloy substrate
Spinodal decomposition generates ferromagnetic rich (Fe, Co) mutually with weak magnetic or nonmagnetic rich (Al, Ni) phase, while multiple elements design adds
The component for adding Alnico alloy facilitates the amorphous phase that certain content is formed in strip, thus obtain by hard magnetic phase,
The alloy system that soft magnetism phase, weak magnetic phase or non-magnetic phase and part amorphous phase collectively constitute, passes through coupling mechanism, pinning
The collective effect of mechanism, promotes Nd-Fe-B thin strip magnet to have good hard magnetic property, the magnetic property of the strip: coercivity is
52.1~996kA/m, remanent magnetism are 0.21~1.34T, and magnetic energy product is 10.2~160kJ/m3；The strip with a thickness of 20~80 μ
m；The average grain size of the principal crystalline phase of the strip is 20~150nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189346.4A CN107045910B (en) | 2017-03-27 | 2017-03-27 | A kind of Nd-Fe-B thin strip magnet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189346.4A CN107045910B (en) | 2017-03-27 | 2017-03-27 | A kind of Nd-Fe-B thin strip magnet and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107045910A CN107045910A (en) | 2017-08-15 |
| CN107045910B true CN107045910B (en) | 2019-02-19 |
Family
ID=59544229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710189346.4A Expired - Fee Related CN107045910B (en) | 2017-03-27 | 2017-03-27 | A kind of Nd-Fe-B thin strip magnet and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107045910B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549291A (en) * | 2020-06-22 | 2020-08-18 | 马拉兹(江苏)电梯导轨有限公司 | Killed steel for elevator guide rail and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1338359A4 (en) * | 2000-10-06 | 2006-06-07 | Santoku Corp | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
| CN101320609A (en) * | 2008-03-21 | 2008-12-10 | 浙江大学 | Grain boundary phase-reconstructed high-corrosion resistance Sintered NdFeB magnet and preparation method thereof |
| CN103632834A (en) * | 2013-12-03 | 2014-03-12 | 江苏大学 | Preparation method of high-performance anisotropic Nd-Fe-B magnetic body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424791C (en) * | 2005-12-19 | 2008-10-08 | 锦州东方微纳科技有限公司 | High stability and high magnetism quenched R-Fe-B base permanent magnetic alloy powder |
-
2017
- 2017-03-27 CN CN201710189346.4A patent/CN107045910B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1338359A4 (en) * | 2000-10-06 | 2006-06-07 | Santoku Corp | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
| CN101320609A (en) * | 2008-03-21 | 2008-12-10 | 浙江大学 | Grain boundary phase-reconstructed high-corrosion resistance Sintered NdFeB magnet and preparation method thereof |
| CN103632834A (en) * | 2013-12-03 | 2014-03-12 | 江苏大学 | Preparation method of high-performance anisotropic Nd-Fe-B magnetic body |
Non-Patent Citations (1)
| Title |
|---|
| Nd-Fe-M-B（M=Co,Cr,Al,Zr）薄带磁体的结构与磁性能研究;韩瑞平;《中国博士学位论文全文数据库工程科技Ⅱ辑》;20120715;正文第2章、第5章 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107045910A (en) | 2017-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104485192B (en) | A kind of iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof | |
| Ni et al. | Study on magnetic properties of Ce17Fe78− xZrxB6 (x= 0–2.0) alloys | |
| JP2017531912A (en) | Quenched alloy for rare earth magnet and method for producing rare earth magnet | |
| CN105957673B (en) | A kind of isotropism rare earth permanent magnet powder and preparation method thereof | |
| CN106024244A (en) | High-heat-stability nanocrystal rare-earth permanent-magnet material and preparation method thereof | |
| CN104451465B (en) | A kind of preparation method for industrial iron-based amorphous and nanocrystalline soft magnetic alloy | |
| CN106756488B (en) | A kind of iron-based sub-nanometer magnetically soft alloy and preparation method thereof | |
| CN107424695A (en) | A kind of dual alloy nanocrystalline rare-earth permanent magnet and preparation method thereof | |
| CN101430958B (en) | Sm (Co, M)7type alloy strip magnet preparation method | |
| CN105177469A (en) | High-ferric-content amorphous magnetically soft alloy and preparing method thereof | |
| CN107564644B (en) | A kind of compound samarium ferromagnetic alloy of nanoporous two-phase and preparation method thereof | |
| Liang et al. | The effects of Co on the enhancement of magnetic properties by modifying the intergranular phase in Nd-Fe-B alloys | |
| CN104240885A (en) | NdFeB double-phase composite permanent magnet nanomaterial and preparation method | |
| Peng et al. | Significant coercivity enhancement of Ti doping in Nd–Ce–Fe–B melt spun alloys | |
| CN107045910B (en) | A kind of Nd-Fe-B thin strip magnet and preparation method thereof | |
| CN107045911B (en) | Nd-Fe-B thin strip magnet and preparation method thereof | |
| CN106710764B (en) | A kind of SmCo5Base permanent magnetism thin strip magnet and preparation method thereof | |
| CN107312982A (en) | A kind of pure τ phases MnAl base magnetically hard alloy and preparation method thereof | |
| CN103632789B (en) | A kind of high remanent magnetism Nd-Fe-Bo permanent magnet material and preparation method thereof | |
| CN106887292B (en) | SmCo5Base permanent magnetism thin strip magnet and preparation method thereof | |
| Li et al. | Glass formation and soft magnetic properties in Dy-containing Fe–Si–B alloys by adjusting B/Si mole ratio | |
| Miyoshi et al. | Effects of Nb addition on structural and magnetic properties of Fe-B/Nd/sub 2/Fe/sub 14/B-based nanocomposite magnets | |
| CN103700459A (en) | Preparation method for improving coercivity of permanent magnet material of sintered neodymium-iron-boron | |
| CN105112816A (en) | Preparation method of Si-doped low-Sm-content Sm-Co amorphous matrix magnetic alloy | |
| Yan et al. | Structure and magnetic properties of melt-spun Sm–Fe–Nb ribbons and their nitrides |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 |