CN106847453B - A kind of SmCo4B base permanent magnetism strips and preparation method thereof - Google Patents

A kind of SmCo4B base permanent magnetism strips and preparation method thereof Download PDF

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CN106847453B
CN106847453B CN201710189336.0A CN201710189336A CN106847453B CN 106847453 B CN106847453 B CN 106847453B CN 201710189336 A CN201710189336 A CN 201710189336A CN 106847453 B CN106847453 B CN 106847453B
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smco
pure
permanent magnetism
raw material
base permanent
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CN106847453A (en
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孙继兵
池祥
步绍静
殷福星
崔春翔
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Hebei University of Technology
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    • 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
    • H01F1/0551—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 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
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered

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  • Engineering & Computer Science (AREA)
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  • Metallurgy (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A kind of SmCo of the present invention4B base permanent magnetism strips and preparation method thereof are related to the magnet with the hard magnetic material of III a races element containing rare earth metal and magnetic transition metal, the SmCo4The element composition formula of B base permanent magnetism strips is SmCoxCuyFezB is prepared, thus obtained SmCo using melt spun rapid solidification4The thickness of the B base permanent magnetism strips strip is 39 μm~62 μm, its intrinsic coercivity is 38.7kOe~54.1kOe at room temperature, remanent magnetism is 23.1emu/g~28.1emu/g, saturation magnetization is 24.1emu/g~32.6emu/g, overcomes the prior art in Fe and Cu elements while the SmCo obtained by Sm Co B systems alloy is added4High hard magnetic phase is not formed in B base permanent magnetism strips, and strip magnetic property still needs the defect further increased.

Description

A kind of SmCo4B base permanent magnetism strips and preparation method thereof
Technical field
Technical scheme of the present invention is related to containing rare earth metal and magnetic transition metal and III a races element hard magnetic material Magnet, specifically a kind of SmCo4B base permanent magnetism strips and preparation method thereof.
Background technology
Rare earth permanent-magnetic material is with transiting group metal elements such as the rare earth elements such as Pr, Nd, Sm and Fe, Co, Ni using certain Preparation process be formed by permanent-magnet material, had a wide range of applications in the fields such as machinery, electronics and aviation.Rare earth element SO coupling effect is strong, and anisotropy field is high, can provide larger magnetic moment, and Curie temperature is higher.Rare earth is forever at present Magnetic material has developed SmCo5Based alloy, Sm2Co17Based alloy and Nd-Fe-B alloy three generations's permanent magnets, wherein Nd-Fe-B Series of permanent magnets has maximum magnetic energy product, and Sm-Co series then possesses the advantage of bigger under the high temperature conditions.Sm-Co systems close Jin Zhong, SmCo5Based alloy has higher magnetic energy product, highest coercivity, higher anisotropy field and excellent temperature steady It is qualitative, therefore SmCo5Based alloy first generation permanent magnet is still extensively studied and develops at present.
Oesterreicher H et al. (Oesterreicher H, Spada F, Abache C.Anisotropic and high magnetization rare earth transition metal compounds containing metalloids[J]. Materials research bulletin,1984,19(8):It 1069-1076.) the study found that will A small amount of B atoms dissolve in SmCo5In can form SmCo4B phases, it has CeCo4Type B hexagonal structure, space group P6/mmm.Cause This, SmCo4B phases are practically due to SmCo5Certain Co atoms in phase are replaced and formed by B atoms.Research shows that (Jiang X, Balamurugan B,Shield J E.Effect of Fe content on structural and magnetic properties of SmCo4-xFexB alloys[J].Journal of Alloys and Compounds, 2014,617:479-484.), SmCo4B phases possess the hard magnetic property of bigger, and anisotropy field can reach in 4.2K 120T, and SmCo5It is only mutually 71T under similarity condition, in 300K, SmCo4The coercivity of B phases can reach 44kOe.
SmCo is replaced with Fe4In B SmCo can be obtained after part Co atoms4-xFexB phases, however Fe is in SmCo4-xFexIn B There are the limitations of solid solubility, work as x<Single-phase Sm (Co, Fe) can be formed when 14B, but when x >=1, Sm can be then formed in alloy (Co,Fe)4B and Sm2(Co,Fe)17ByStructure (Jiang X, Devaraj A, the Balamurugan B, et of two-phase coexistent al.Microstructure of multistage annealed nanocrystalline SmCo2Fe2B alloy with enhanced magnetic properties[J].Journal of Applied Physics,2014,115(6): 063902.).Jiang X et al. (Jiang X, Balamurugan B, Shield J E.Effect of Fe content on structural and magnetic properties of SmCo4-xFexB alloys[J].Journal of Alloys and Compounds,2014,617:479-484.) by studying SmCo4-xFexB fast quenching thin straps find that strip passes through 800 DEG C After annealing 30min, with the increase of x, SmCo4-xFexThe coercivity and the intensity of magnetization of B all increases therewith, as x=1, coercive Power reaches maximum, and about 44kOe, when x continues to increase, coercivity can reduce therewith, and as x=2, intensity of magnetization maximum can increase About 24%.
T é llez-Blanco et al. (J.C.T é llez-Blanco, R.R.Sato Turtell i. Structure and magnetic properties of SmCo5-xCux alloys[J].Journal of Alloys and Compounds,1998,281:1-5.) by studying annealed state SmCo5-xCux(x=1,1.5,2,2.5,3,4) alloy It was found that as x increases, there is the trend of first increases and then decreases in alloy coercivity, and in x=2.5, coercivity reaches maximum value 26kOe.Zhang J et al. (Zhang J, Takahashi Y K, Gopalan R, et al.Microstructures and coercivities of SmCox and Sm(Co,Cu)5films prepared by magnetron sputtering[J]. Journal of magnetism and magnetic materials,2007,310(1):1-7.) by studying SmCo4.5/ Cu plural layers find that Cu additions appropriate can change the micro-structure of annealing thin film and its coercivity is made to improve.Because of Cu SmCo can be entered5Lattice forms Sm (Co, Cu)5Phase, it has higher magnetic anisotropy field.
Gopalan R et al. (Gopalan R, Ping D H, Hono K.Microstructural evolution and the magnetic properties of melt-spun Sm-Co-Cu-B and Sm-Co-Fe-Cu-B ribbons[J]. Journal of magnetism and magnetic materials,2004,284:321-329.) pass through research Sm12Co60Cu26B2And Sm16.7Co48.3Fe25Cu8.3B1.7Fast quenching thin strap discovery, Sm12Co60Cu26B2Fast quenching thin strap is moved back by 600 DEG C After fiery 10min, the main phase of strip is by 1:7H types, i.e. TbCu7Structure is transformed into 2:17H types, i.e. Th2Ni17Structure, coercivity reach To about 8.0kOe.Sm16.7Co48.3Fe25Cu8.3B1.7Fast quenching thin strap is by 1:5H type main phases are constituted, when FFR'S fuel assembly is 30m/s, Strip has maximum coercivity 5kOe.
In conclusion the prior art improves SmCo4The method of B base permanent magnetism strip hard magnetic properties is mainly by adding Fe members Element replaces part Co and obtains, to improve its coercitive method then mainly in SmCo5Cu elements are added in based alloy.Mesh Before, although the prior art has had Fe and Cu elements while Sm-Co-B systems alloy is added so as to improve SmCo4B base permanent magnetism strips The method of performance, but due to not forming high hard magnetic phase, strip magnetic property still needs to be further increased.
Invention content
The technical problem to be solved by the present invention is to：A kind of SmCo is provided4B base permanent magnetism strips and preparation method thereof, should SmCo4The element composition formula of B base permanent magnetism strips is SmCoxCuyFezB is prepared using melt spun rapid solidification, is thus made SmCo4B base permanent magnetism strips overcome the prior art in Fe and Cu elements while being added obtained by Sm-Co-B systems alloy SmCo4High hard magnetic phase is not formed in B base permanent magnetism strips, and strip magnetic property still needs the defect further increased.
Technical solution is used by the present invention solves the technical problem：A kind of SmCo4B base permanent magnetism strips, element group An accepted way of doing sth is SmCoxFeyCuzB, symbol x, y and z indicate to limit the atomic percentage of element compositing range in the formula, limit element group Met with atomic percentage at the symbol of range：X+y+z=4, x=2.64~3.24, y=0.7~1.3, z=0.02~ 0.1, the thickness of the strip is 39 μm~62 μm, its intrinsic coercivity is 38.7kOe~54.1kOe at room temperature, and remanent magnetism is 23.1emu/g~28.1emu/g, saturation magnetization are 24.1emu/g~32.6emu/g.
A kind of above-mentioned SmCo4The preparation method of B base permanent magnetism strips is as follows using melt spun rapid solidification：
The first step, raw material are prepared：
Element composition general formula SmCo is calculated according to atomic percentage contentxFeyCuzThe quality percentage of component in B Than weighing the desired amount of component raw material by the mass percent：Thus pure Sm, pure Co, pure Fe, pure Cu and pure B complete raw material and match System, in above-mentioned composition general formula, the symbol for limiting element compositing range is met with atomic percentage：X+y+z=4, x= 2.64~3.24, y=0.7~1.3, z=0.02~0.1；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace or vacuum induction melting furnace crucible simultaneously, melting When first to furnace body suction to 10-2Pa~10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are equal It is even, SmCo is madexFeyCuzB mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second stepxFeyCuzB mother alloy ingots are fitted into fast melt-quenching stove, in 10m/s after re-melting Fast melt-quenching is carried out on the cooling copper roller or molybdenum roller of the rotation of~50m/s linear velocities, SmCo is thus made4B base fast quenchings are thin Band；
4th step, SmCo4The preparation of B base permanent magnetism strips：
SmCo prepared by third step4B base fast quenching thin straps are fitted into vacuum annealing furnace, vacuum degree 10-2Pa~10-3Pa, It is made annealing treatment at 750 DEG C~850 DEG C, soaking time is 20min~40min, and SmCo is thus made4B base permanent magnetism strips produce Product, element composition formula are SmCoxFeyCuzB, strip thickness are 39 μm~62 μm, its intrinsic coercivity is at room temperature 38.7kOe~54.1kOe, remanent magnetism be 23.1emu/g~28.1emu/g, saturation magnetization be 24.1emu/g~ 32.6emu/g。
A kind of above-mentioned SmCo4The preparation method of B base permanent magnetism strips, during the first step raw material is prepared, according to atomic percent Content meter calculates element composition general formula SmCoxFeyCuzThe mass percent of component in B claims by the mass percent On the basis of taking the pure Sm of required content of starting materials, thus the pure Sm of 5%~10% (mass percent) of outer addition completes raw material and prepares.
A kind of above-mentioned SmCo4The preparation method of B base permanent magnetism strips, used raw material are all commercially available, institute The equipment used is well known chemical industry equipment, and used process operation is that those skilled in the art institute is ripe The method known.
The beneficial effects of the invention are as follows：Compared with prior art, substantive distinguishing features outstanding of the invention are as follows：
(1) the element composition formula that the present invention designs is SmCoxFeyCuzA kind of SmCo of B4The innovation machine of B base permanent magnetism strips Reason is as follows：
1) B atoms replace SmCo5In part Co atoms after can form R1+nCo5+3nB2nType Sm-Co-B ternary alloy three-partalloys, Structure is believed that by 1 layer of SmCo5With n-layer RCo3B2(Kuz'ma Y B, Bilonizhko N S.New are formed along c-axis stacking structural types of homologous series borides based on CaCu5and CeCo3B2types [J]. Kristallografiya,1973,18(4):710-714.).Ido H et al. (Ido H, Sugiyama K, Hachino H,et al.Magnetic study of Smn+1Co3n+5B2n(n=0,1,2,3) in a pulsed high field [J] Physica B:Condensed Matter,1992,177(1):265-269.) the study found that R1+nCo5+3nB2nType Sm-Co-B Ternary alloy three-partalloy has very high anisotropy field, wherein SmCo4The anisotropy field of B can reach 120T in 4.2K, and SmCo5There was only 71T under the same terms, but its Curie temperature and the intensity of magnetization are relatively low.
2) in Sm-Co-B ternary systems, each diversity constant K of alloy1It is mainly provided, is passed through by the sublattice of Sm The doping of Fe can improve the anisotropy of Sm sublattices.
3) since Fe elements are magnetic element, suitable doping can increase the intensity of magnetization of alloy totality.Ido H et al. (Ido H,Nashima O,Takahashi T,et al.New magnetic material based on SmCo4B[J]. Journal of Applied Physics,1994,76(10):6165-6167) the study found that Fe elements appropriate are added SmCo4Co atoms in part therein can be replaced in B, form Sm (Co, Fe)4B alloys, it has than SmCo4B alloys are higher The intensity of magnetization.
4)SmFe5It is a kind of metastable structure (Miyazaki T, Takahashi M, Yang X, et al.Formation of metastable compounds and magnetic properties in rapidly quenched(Fe1-xCox)5Sm and(Fe1-xCox)7Sm2alloy systems[J].Journal of applied physics,1988,64(10): 5974-5976.), so Fe is in SmCo4It cannot ad infinitum be melted admittedly in B.
5) Fe is in SmCo4There are solid solubility limitations in B, for SmCo4-xFexFor B, work as x<Single-phase Sm can be formed when 1 (Co,Fe)4Sm (Co, Fe) can be formed when B, x >=1, in alloy4B and Sm2(Co,Fe)17ByTwo-phase coexistent structure (Jiang X, Devaraj A,Balamurugan B,et al.Microstructure of multistage annealed nanocrystalline SmCo2Fe2B alloy with enhanced magnetic properties[J].Journal of Applied Physics,2014,115(6):063902.), therefore the excessive addition of Fe contents can reduce Sm instead (Co1-xFex)4The hard magnetic property of B.
6) Jiang X et al. (Jiang X, Balamurugan B, Shield J E.Effect of Fe content on structural and magnetic properties of SmCo4-xFexB alloys[J].Journal of Alloys and Compounds,2014,617:479-484.) by SmCo4-xFexB fast quenching thin straps carry out 800 DEG C of annealing 30min It is found after processing, with the increase of x, anneal SmCo4-xFexThe Overall magnetization intensity of B strips increases, and when x=2, increase reaches 24%.With the increase of x, anneal SmCo4-xFexThere is the trend of first increases and then decreases in the coercivity of B strips, thin as x=1 The coercivity of band reaches maximum value, about 44kOe.Illustrate that appropriately addition Fe elements can increase SmCo4-xFexB phases it is each to different Property field.
7) continue to increase with Fe contents, anneal SmCo4-xFexThe coercivity of B strips is begun to decline, because in strip There is Sm2(Co,Fe)17ByPhase, its hard magnetic are less than Sm (Co1-xFex)4B phases, in the case where opposing magnetic field acts on, magnetic domain can be first Reversion.
8) Cu has face-centred cubic structure, (111) crystal face and six side SmCo5(0001) face can preferably agree with, Mismatch ratio very little.
9) Cu is easy to occupy SmCo52c crystalline substances position Co atoms, formed Sm (Co, Cu)5Structure.The addition of Cu can cause magnetic Hardening makes magnetized orientation improve, is conducive to keep higher coercivity (Zhao Sihai .Sm (Co, M)5Electronic structures and magnetism First principle research [D] the Central China University of Science and Technology, 2012.).But the doping of Cu can make caused by being coupled originally by 3d-5d The strong correlations of Sm-Co become the effect of Sm-Cu weak rigidities, and whole magnetic moment is caused to decline (Sakuma A. First principles study on the electronic structure and effective exchange interaction of Y(Co1-xCux)5[J].Journal of applied physics,2006,99(8).)。
10) Zhang Y et al. (Zhang Y, Gabay A, Wang Y, et al.Microstructure, microchemistry,and coercivity in Sm-Co-Cu and Pr-Co-Cu 1:5alloys[J].Journal of Magnetism and Magnetic Materials,2004,272:E1899-E1900.)SmCo5-xCuxAlloy discovery, As x increases, the coercivity of alloy increases, and when x=2.5 reaches maximum value, about 7kOe.
11) doping of Cu can cause SmCo5-xCuxSaturation magnetization and magnetocrystalline anisotropy constant decline, therefore Cu Doping cannot be too big.
12) there is presently no Cu to adulterate SmCo4The report of B alloys, therefore the SmCo for adding Cu4-xCuxThe magnetic of B alloys The characteristics of performance, there are no more visible understanding.But SmCo4B alloys can be regarded as by SmCo5Alloy changes, according to right SmCo5-xCuxAlloy studies the SmCo it is envisioned that Cu element dopings4-xCuxB alloys can possess preferable hard magnetic property, but Cu elements are nonmagnetic elements, may seriously reduce SmCo4The intensity of magnetization of B.Therefore, the present invention passes through Fe, Cu element pair SmCo4B alloys adulterate simultaneously, and the coercivity of alloy is made to further increase, and the intensity of magnetization improves, and obtaining comprehensive magnetic can be preferably SmCo4-x-yFexCuyB alloys, i.e. element composition formula of the invention are SmCoxFeyCuzB alloys.
(2) present invention by Fe, Cu element to SmCo4B alloys are doped, and form SmCo4-x-yFexCuyB phases.Due to Fe elements are magnetic element, and Fe can improve SmCo to the displacement of Co atoms4The intensity of magnetization and coercivity of B phases.Meanwhile Cu Trace doped can further increase SmCo4-xFexThe coercivity of B phases will not drop too much since the doping of Cu is seldom The low intensity of magnetization, to form high hard magnetic phase, obtaining comprehensive magnetic can better permanent-magnet alloy.
Compared with prior art, marked improvement of the invention is：The magnetism of magnet is measured using physical property measuring system It can show, the SmCo made from the method for the present invention4B base permanent magnetism strips, at room temperature its intrinsic coercivity be 38.7~ 54.1kOe, remanent magnetism are 23.1~28.1emu/g, and saturation magnetization is 24.1~32.6emu/g, considerably more than existing SmCo obtained by technology4The agnetic property at room temperature m of B base permanent magnetism strips, overcomes the prior art in Fe and Cu elements while being added SmCo obtained by Sm-Co-B systems alloy4High hard magnetic phase is not formed in B base permanent magnetism strips, and strip magnetic property still needs into one Walk the defect improved.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that element composition formula made from embodiment 1 is SmCo3.08Fe0.9Cu0.02The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Fig. 2 is that element composition formula made from embodiment 1 is SmCo3.08Fe0.9Cu0.02The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Fig. 3 is that element composition formula made from embodiment 2 is SmCo3.04Fe0.9Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Fig. 4 is that element composition formula made from embodiment 2 is SmCo3.04Fe0.9Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Fig. 5 is that element composition formula made from embodiment 3 is SmCo3.0Fe0.9Cu0.1The SmCo of B4B base permanent magnetism strip products XRD collection of illustrative plates.
Fig. 6 is that element composition formula made from embodiment 3 is SmCo3.0Fe0.9Cu0.1The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Fig. 7 is that element composition formula made from embodiment 4 is SmCo3.24Fe0.7Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Fig. 8 is that element composition formula made from embodiment 4 is SmCo3.24Fe0.7Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Fig. 9 is that element composition formula made from embodiment 5 is SmCo2.84Fe1.1Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Figure 10 is that element composition formula made from embodiment 5 is SmCo2.84Fe1.1Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Figure 11 is that element composition formula made from embodiment 6 is SmCo2.64Fe1.3Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Figure 12 is that element composition formula made from embodiment 6 is SmCo2.64Fe1.3Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Figure 13 is that element composition formula made from embodiment 7 is SmCo2.82Fe1.1Cu0.08The SmCo of B4B base permanent magnetism strip products XRD spectrum.
Figure 14 is that element composition formula made from embodiment 7 is SmCo2.82Fe1.1Cu0.08The SmCo of B4B base permanent magnetism strip products Hysteresis loop.
Specific implementation mode
Embodiment 1
It is SmCo to prepare element composition formula3.08Fe0.9Cu0.02The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 49 μ M, its intrinsic coercivity is 42.5kOe, remanent magnetism 27.5emu/g, the maximal magnetization intensity under the magnetic fields 90kOe at room temperature M9TFor 32.6emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content3.08Fe0.9Cu0.02The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made3.08Fe0.9Cu0.0 2B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step3.08Fe0.9Cu0.02B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo3.08Fe0.9Cu0.02The thickness of B, the strip are 49 μm, its intrinsic coercivity is 42.5kOe at room temperature, and remanent magnetism is 27.5emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 32.6emu/g.
Fig. 1 is that element composition formula made from the present embodiment is SmCo3.08Fe0.9Cu0.02The SmCo of B4B base permanent magnetism strip products XRD spectrum.It can be seen that its phase composition is mainly by SmCo3.08Fe0.9Cu0.02B phase compositions.
Fig. 2 is that element composition formula made from the present embodiment is SmCo3.08Fe0.9Cu0.02The SmCo of B4B base permanent magnetism strip products Hysteresis loop, it is intrinsic to rectify it can be seen that measure magnetic property in the synthesis physical property measuring system that external magnetic field is 90kOe Stupid power is 42.5kOe, remanent magnetism 27.5emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 32.6emu/g.Utilize spiral shell The thickness that rotation mircrometer gauge measures the strip is 49 μm.
Embodiment 2
It is SmCo to prepare element composition formula3.04Fe0.9Cu0.06The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 53 μ M, intrinsic coercivity is 44.4kOe, remanent magnetism 27.2emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe at room temperature9T For 31.3emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content3.04Fe0.9Cu0.06The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, are made SmCo3.04Fe0.9Cu0.06B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step3.04Fe0.9Cu0.06B master alloys are fitted into fast melt-quenching stove, in 40m/ after re-melting Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo3.04Fe0.9Cu0.06The thickness of B, the strip are 53 μm, and intrinsic coercivity is 44.4kOe at room temperature, and remanent magnetism is 27.2emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 31.3emu/g.
Fig. 3 is that element composition formula made from the present embodiment is SmCo3.04Fe0.9Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.It can be seen that its phase composition is mainly by SmCo3.04Fe0.9Cu0.06B phase compositions.
Fig. 4 is that element composition formula made from the present embodiment is SmCo3.04Fe0.9Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop, it is intrinsic to rectify it can be seen that measure magnetic property in the synthesis physical property measuring system that external magnetic field is 90kOe Stupid power is 44.4kOe, remanent magnetism 27.2emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 31.3emu/g.Utilize spiral shell The thickness that rotation mircrometer gauge measures the strip is 53 μm.
Embodiment 3
It is SmCo to prepare element composition formula3.0Fe0.9Cu0.1The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 45 μm, Intrinsic coercivity is 38.7kOe, remanent magnetism 24.1emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe at room temperature9TFor 25.0emu/g。
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content3.0Fe0.9Cu0.1The quality percentage of component in B Than weighing the desired amount of component raw material by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, additionally add in dispensing Add the pure Sm for the mass percent 6% for weighing pure Sm by above-mentioned raw materials proportioning, thus completes raw material and prepare；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made3.0Fe0.9Cu0.1B Mother alloy ingot；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step3.0Fe0.9Cu0.1B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo3.0Fe0.9Cu0.1The thickness of B, the strip are 45 μm, and intrinsic coercivity is 38.7kOe at room temperature, and remanent magnetism is 24.1emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 25.0emu/g.
Fig. 5 is that element composition formula made from the present embodiment is SmCo3.0Fe0.9Cu0.1The SmCo of B4B base permanent magnetism strip products XRD spectrum.It can be seen that its phase composition is mainly by SmCo3.0Fe0.9Cu0.1B phase compositions.
Fig. 6 is that element composition formula made from the present embodiment is SmCo3.0Fe0.9Cu0.1The SmCo of B4B base permanent magnetism strip products Hysteresis loop, it is intrinsic to rectify it can be seen that measure magnetic property in the synthesis physical property measuring system that external magnetic field is 90kOe Stupid power is 38.7kOe, remanent magnetism 24.1emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 25.emu/g.Utilize spiral shell The thickness that rotation mircrometer gauge measures the strip is 45 μm.
Embodiment 4
It is SmCo to prepare element composition formula3.24Fe0.7Cu0.06The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 42 μ M, intrinsic coercivity is 43.0kOe, remanent magnetism 28.1emu/g, the magnetization M under the magnetic fields 90kOe at room temperature9TFor 24.1emu/g。
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content3.24Fe0.7Cu0.06The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made3.24Fe0.7Cu0.0 6B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step3.24Fe0.7Cu0.06B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo3.24Fe0.7Cu0.06The thickness of B, the strip are 42 μm, and intrinsic coercivity is 43.0kOe at room temperature, and remanent magnetism is 28.1emu/g, the magnetization M under the magnetic fields 90kOe9TFor 24.1emu/g.
Fig. 7 is that element composition formula made from the present embodiment is SmCo3.24Fe0.7Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.It can be seen that its phase composition is mainly by SmCo3.24Fe0.7Cu0.06B phase compositions.
Fig. 8 is that element composition formula made from the present embodiment is SmCo3.24Fe0.7Cu0.06The SmCo of B4B base permanent magnetism strip products Hysteresis loop, it is intrinsic to rectify it can be seen that measure magnetic property in the synthesis physical property measuring system that external magnetic field is 90kOe Stupid power is 43.0kOe, remanent magnetism 28.1emu/g, the magnetization M under the magnetic fields 90kOe9TFor 24.1emu/g.It is surveyed using spiral The thickness that micro- device measures the strip is 42 μm.
Embodiment 5
It is SmCo to prepare element composition formula2.84Fe1.1Cu0.06The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 57 μ M, intrinsic coercivity is 50.1kOe, remanent magnetism 24.5emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe at room temperature9TFor 27.9emu/g。
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.84Fe1.1Cu0.06The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, are made SmCo2.84Fe1.1Cu0.06B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.84Fe1.1Cu0.06B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo2.84Fe1.1Cu0.06The thickness of B, the strip are 57 μm, at room temperature intrinsic coercivity 50.1kOe, remanent magnetism 24.5emu/ G, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 27.9emu/g.
Fig. 9 is that element composition formula made from the present embodiment is SmCo2.84Fe1.1Cu0.06The SmCo of B4B base permanent magnetism strip products XRD spectrum.It can be seen that its phase composition is mainly by SmCo2.84Fe1.1Cu0.06B phase compositions.
Figure 10 is that element composition formula made from the present embodiment is SmCo2.84Fe1.1Cu0.06The SmCo of B4B base permanent magnetism strips produce The hysteresis loop of product, it can be seen that magnetic property is measured in the synthesis physical property measuring system that external magnetic field is 90kOe, it is intrinsic Coercivity is 50.1kOe, remanent magnetism 24.5emu/g, the maximal magnetization intensity M under the magnetic fields 90kOe9TFor 27.9emu/g.Utilize spiral shell The thickness that rotation mircrometer gauge measures the strip is 57 μm.
Embodiment 6
It is SmCo to prepare element composition formula2.64Fe1.3Cu0.06The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 48 μ M, intrinsic coercivity is 44.6kOe, remanent magnetism 23.1emu/g, the maximal magnetization intensity M at the 90kOe of magnetic field at room temperature9T For 26.7emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.64Fe1.3Cu0.06The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, are made SmCo2.64Fe1.3Cu0.06B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.64Fe1.3Cu0.06B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo2.64Fe1.3Cu0.06The thickness of B, the strip are 48 μm, and intrinsic coercivity is 44.6kOe at room temperature, and remanent magnetism is 23.1emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 26.7emu/g.
Figure 11 is that element composition formula made from the present embodiment is SmCo2.64Fe1.3Cu0.06The SmCo of B4B base permanent magnetism strips produce The XRD spectrum of product.It can be seen that its phase composition is mainly by SmCo2.64Fe1.3Cu0.06B phase compositions.
Figure 12 is that element composition formula made from the present embodiment is SmCo2.64Fe1.3Cu0.06The SmCo of B4B base permanent magnetism strips produce The hysteresis loop of product, it can be seen that magnetic property is measured in the synthesis physical property measuring system that external magnetic field is 90kOe, it is intrinsic Coercivity is 44.6kOe, remanent magnetism 23.1emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 26.7emu/g.Profit The thickness that the strip is measured with micrometer caliper is 48 μm.
Embodiment 7
It is SmCo to prepare element composition formula2.82Fe1.1Cu0.08The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 41 μ M, intrinsic coercivity is 54.1kOe, remanent magnetism 23.5emu/g, the maximal magnetization intensity in the case where magnetic field is 90kOe at room temperature M9TFor 26.7emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.82Fe1.1Cu0.08The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 6% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 5 × 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made2.82Fe1.1Cu0.0 8B mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.82Fe1.1Cu0.08B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling molybdenum roller of the peripheral speed rotation of 40m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree is 5 × 10-3Pa, at 800 DEG C It is made annealing treatment, soaking time 30min, SmCo is thus made4B base permanent magnetism strip products, element composition formula are SmCo2.82Fe1.1Cu0.08The thickness of B, the strip are 41 μm, and intrinsic coercivity is 54.1kOe at room temperature, and remanent magnetism is 23.5emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 26.7emu/g.
Figure 13 is that element composition formula made from the present embodiment is SmCo2.82Fe1.1Cu0.08The SmCo of B4B base permanent magnetism strips produce The XRD spectrum of product.It can be seen that its phase composition is mainly by SmCo2.82Fe1.1Cu0.08B phase compositions.
Figure 14 is that element composition formula made from the present embodiment is SmCo2.82Fe1.1Cu0.08The SmCo of B4B base permanent magnetism strips produce The hysteresis loop of product, it can be seen that magnetic property is measured in the synthesis physical property measuring system that external magnetic field is 90kOe, it is intrinsic Coercivity is 54.1kOe, remanent magnetism 23.5emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 26.7emu/g.Profit The thickness that the strip is measured with micrometer caliper is 41 μm.
Embodiment 8
It is SmCo to prepare element composition formula2.82Fe1.1Cu0.08The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 62 μ M, intrinsic coercivity is 43.8kOe, remanent magnetism 24.7emu/g, the maximal magnetization intensity in the case where magnetic field is 90kOe at room temperature M9TFor 28.2emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.82Fe1.1Cu0.08The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 10% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum induction melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 10-2Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made2.82Fe1.1Cu0.08B Mother alloy ingot；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.82Fe1.1Cu0.08B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling copper roller of the peripheral speed rotation of 10m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree 10-2Pa, 750 DEG C into Thus SmCo is made in row annealing, soaking time 40min4B base permanent magnetism strip products, element composition formula are SmCo2.82Fe1.1Cu0.08The thickness of B, the strip are 62 μm, and intrinsic coercivity is 43.8kOe at room temperature, and remanent magnetism is 24.7emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 28.2emu/g.
Embodiment 9
It is SmCo to prepare element composition formula2.82Fe1.1Cu0.08The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 55 μ M, intrinsic coercivity is 46.5kOe, remanent magnetism 24.3emu/g, the maximal magnetization intensity in the case where magnetic field is 90kOe at room temperature M9TFor 27.3emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.82Fe1.1Cu0.08The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 10% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum induction melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 10-2Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made2.82Fe1.1Cu0.08B Mother alloy ingot；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.82Fe1.1Cu0.08B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling copper roller of the peripheral speed rotation of 20m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree 10-2Pa, 750 DEG C into Thus SmCo is made in row annealing, soaking time 40min4Thus SmCo is made in B base permanent magnetism strip products4B base permanent magnetism is thin Band product, element composition formula are SmCo2.82Fe1.1Cu0.08B, the thickness that the strip is measured using micrometer caliper are 55 μm, Intrinsic coercivity is 46.5kOe, remanent magnetism 24.3emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe at room temperature9TFor 27.3emu/g。
Embodiment 10
It is SmCo to prepare element composition formula2.82Fe1.1Cu0.08The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 47 μ M, intrinsic coercivity is 50.9kOe, remanent magnetism 23.8emu/g, the maximal magnetization intensity in the case where magnetic field is 90kOe at room temperature M9TFor 27.1emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.82Fe1.1Cu0.08The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 8% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum induction melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 10-2Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made2.82Fe1.1Cu0.08B Mother alloy ingot；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.82Fe1.1Cu0.08B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling copper roller of the peripheral speed rotation of 30m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree 10-2Pa, 780 DEG C into Thus SmCo is made in row annealing, soaking time 35min4Thus SmCo is made in B base permanent magnetism strip products4B base permanent magnetism is thin Band product, element composition formula are SmCo2.82Fe1.1Cu0.08B, the thickness that the strip is measured using micrometer caliper are 47 μm, Intrinsic coercivity is 50.9kOe, remanent magnetism 23.8emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe at room temperature9TFor 27.1emu/g。
Embodiment 11
It is SmCo to prepare element composition formula2.82Fe1.1Cu0.08The SmCo of B4The thickness of B base permanent magnetism strips, the strip is 39 μ M, intrinsic coercivity is 53.5kOe, remanent magnetism 23.6emu/g, the maximal magnetization intensity in the case where magnetic field is 90kOe at room temperature M9TFor 26.9emu/g.
The first step, raw material are prepared：
Element composition formula SmCo is calculated according to atomic percentage content2.82Fe1.1Cu0.08The quality hundred of component in B Divide ratio, the desired amount of component raw material is weighed by the mass percent：Pure Sm, pure Co, pure Fe, pure Cu and pure B, it is additional in dispensing Addition is weighed the pure Sm of the mass percent 5% of pure Sm by above-mentioned raw materials proportioning, is thus completed raw material and is prepared；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum induction melting furnace crucible simultaneously, when melting first vacuumizes furnace body It spends to 10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, SmCo is made3.0Fe0.9Cu0.1B is female Alloy cast ingot；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second step2.82Fe1.1Cu0.08B master alloys are fitted into fast melt-quenching stove, after re-melting with Fast melt-quenching is carried out on the cooling copper roller of the peripheral speed rotation of 50m/s, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
The strip that third step fast melt-quenching is prepared is fitted into vacuum annealing furnace, vacuum degree 10-3Pa, 850 DEG C into Thus SmCo is made in row annealing, soaking time 20min4B base permanent magnetism strip products, element composition formula are SmCo2.82Fe1.1Cu0.08B, the thickness that the strip is measured using micrometer caliper is 39 μm, and intrinsic coercivity is at room temperature 53.5kOe, remanent magnetism 23.6emu/g, the maximal magnetization intensity M in the case where magnetic field is 90kOe9TFor 26.9emu/g.
In above-described embodiment, used raw material is all commercially available, and used equipment is well knownization Construction equipment, used process operation are method known to those skilled in the art.

Claims (3)

1. a kind of SmCo4B base permanent magnetism strips, it is characterised in that：Its element composition formula is SmCoxFeyCuzB, symbol x, y in the formula The atomic percentage of restriction element compositing range is indicated with z, the symbol for limiting element compositing range is met with atomic percentage： The thickness of x+y+z=4, x=2.64~3.24, y=0.7~1.3, z=0.02~0.1, the strip are 39 μm~62 μm, in room Its lower intrinsic coercivity of temperature is 38.7kOe~54.1kOe, and remanent magnetism is 23.1emu/g~28.1emu/g, and saturation magnetization is 24.1emu/g~32.6emu/g.
2. a kind of SmCo described in claim 14The preparation method of B base permanent magnetism strips, it is characterised in that：Using melt spun fast quenching Technology is as follows：
The first step, raw material are prepared：
Element composition general formula SmCo is calculated according to atomic percentage contentxFeyCuzThe mass percent of component in B, is pressed The mass percent weighs the desired amount of component raw material：Thus pure Sm, pure Co, pure Fe, pure Cu and pure B complete raw material and prepare, In above-mentioned composition general formula, the symbol for limiting element compositing range is met with atomic percentage：X+y+z=4, x=2.64~ 3.24, y=0.7~1.3, z=0.02~0.1；
Second step, melt raw material prepare mother alloy ingot：
The prepared raw material of the first step is put into vacuum arc melting furnace or vacuum induction melting furnace crucible simultaneously, it is first when melting To furnace body suction to 10-2Pa~10-3Pa, furnace temperature are elevated above the fusing point of pure Co, until whole raw material meltings are uniform, system Obtain SmCoxFeyCuzB mother alloy ingots；
Third walks, SmCo4The preparation of B base fast quenching thin straps：
By SmCo made from second stepxFeyCuzB mother alloy ingots are fitted into fast melt-quenching stove, after re-melting 10m/s~ Fast melt-quenching is carried out on the cooling copper roller or molybdenum roller of the rotation of 50m/s linear velocities, SmCo is thus made4B base fast quenching thin straps；
4th step, SmCo4The preparation of B base permanent magnetism strips：
SmCo prepared by third step4B base fast quenching thin straps are fitted into vacuum annealing furnace, vacuum degree 10-2Pa~10-3Pa, 750 DEG C~850 DEG C made annealing treatment, soaking time be 20min~40min, thus be made SmCo4B base permanent magnetism strip products, Element composition formula is SmCoxFeyCuzB, strip thickness be 39 μm~62 μm, at room temperature its intrinsic coercivity be 38.7kOe~ 54.1kOe, remanent magnetism are 23.1emu/g~28.1emu/g, and saturation magnetization is 24.1emu/g~32.6emu/g.
3. a kind of SmCo according to claim 24The preparation method of B base permanent magnetism strips, it is characterised in that：The first step is former During material is prepared, element composition general formula SmCo is calculated according to atomic percentage contentxFeyCuzThe quality percentage of component in B Than, on the basis of weighing required content of starting materials pure Sm by the mass percent, outer addition mass percent be 5%~10% it is pure Thus Sm completes raw material and prepares.
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