CN1019061B - Rare-earth-iron permanent-magnet material of th-mn oral structure - Google Patents
Rare-earth-iron permanent-magnet material of th-mn oral structureInfo
- Publication number
- CN1019061B CN1019061B CN 89101465 CN89101465A CN1019061B CN 1019061 B CN1019061 B CN 1019061B CN 89101465 CN89101465 CN 89101465 CN 89101465 A CN89101465 A CN 89101465A CN 1019061 B CN1019061 B CN 1019061B
- Authority
- CN
- China
- Prior art keywords
- magnetic material
- rare earth
- permanent
- iron
- 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
Links
Landscapes
- Hard Magnetic Materials (AREA)
Abstract
该发明为用于ThMn12型结构的稀土——铁永磁材料的制造工艺。其成分为R(Fe1-xMx)12，其中R为稀土元素，M为第三元素，x的数值介于0.1-0.3。在上述成分中可掺杂适量的(0.01%至30%原子比)它种元素如Co、Ni、Cu、V、Cr、Mo、Zr等代换等量的Fe或M，采用快冷固化工艺及适当的烧结工艺来制造永磁体。本工艺制造的永磁体，居里温度可达600K-1000K。磁体的矫顽力可达6千奥-9千奥，而且该磁性材料中主要成分为铁，价格低廉。该发明的磁性材料可广泛应用于电器电机及电子仪器中。The invention is a rare earth-iron permanent magnetic material manufacturing process for ThMn 12 type structure. Its composition is R(Fe 1-x M x ) 12 , wherein R is a rare earth element, M is a third element, and the value of x is between 0.1-0.3. The above components can be doped with an appropriate amount (0.01% to 30% atomic ratio) of other elements such as Co, Ni, Cu, V, Cr, Mo, Zr, etc. to replace the same amount of Fe or M, and adopt a rapid cooling and solidification process And proper sintering process to manufacture permanent magnets. The permanent magnet manufactured by this process has a Curie temperature up to 600K-1000K. The coercive force of the magnet can reach 6 k-9 k-ohes, and the main component of the magnetic material is iron, and the price is low. The magnetic material of the invention can be widely used in electric motors and electronic instruments.
Description
This invention belongs to field of magnetic material.
Existing rare earth permanent-magnetic material has developed the three generations, and first and second generation is with SmCo
5And Sm
2Co
17The intermetallic alloy of type rare earth-cobalt is representative, sees document E.A.Nesbitt and J.H.Wernick Rare Earth Permanent Magnets Academie Press New rork and Landon 1973.The third generation develops into Nd
2Fe
14The Type B magnet is seen document M.Sagawa, F.Fujimura, N.Togawa, H.Yamamoto and Y.Matsuura, J.Appl.Phys, 55(1984) 2083.
Since first and second in generation rare earth permanent-magnetic material, its composition mainly is a cobalt, and the resource scarcity of cobalt, the material cost costliness.Thereby to develop into iron be the third generation Nd of main component
2Fe
14The permanent magnetic material of Type B, but the temperature performance of this type magnet is not good enough, simultaneously, and Nd only
2Fe
14The Type B magnet, kind is single.See above-mentioned one, two, the existing deficiency of three generations's rare earth permanent-magnetic material, still need to open up and develop new rare earth-fe permanent magnetic material.Poplar Ying Chang in 1981 etc. at first succeed in developing has ThMn
12The R(Fe of type crystal structure, Mn)
12And R(Fe, Al)
12The rare earth intermetallic compound of rich Fe, seeing reference the document poplar should be prosperous, Acta Metallurgica Sinica the 17th volume (1981) 335Y, C.Yang et al., J.Appl.phys., 52(1981) 2077 and Y.C.Yang et al., J.Appl.phys., 53(1982) 1958 on this basis, in recent years, further succeed in developing R(Fe, Ti)
12, R(Fe, V)
12Deng the rare-earth-iron intermetallic compound, it seems from its intrinsic magnetic properties, can be used to make the high-coercive force permanent magnet.The document K.H.J.Bushow that sees reference, J.Appl.Phys., 63(1988) 3130 and Ying-chang Yang et al., J.Appl.Phys., 63(1988) 3702.The present invention is has ThMn
12The permanent magnetism manufacturing process of the rare-earth-iron intermetallic compound of type structure.
Subject matter of the present invention is as follows:
At first, ThMn
12The rare earth-fe permanent magnetic material of type structure, its composition are R(Fe
1-xM
x)
12, wherein R is a rare earth element, and M is an element, can be elements such as Mn, Al, Ti, Ga, Zn as M, and the numerical value of x is between 0.1-0.3.Crystal structure is ThMn
12The type body-centered structure of the quartet.X x ray diffraction spectral line and lattice constant are seen attached list.
Subordinate list: Sm(Ti
0.1Fe
0.9)
12X x ray diffraction spectral line
Lattice constant a=8.575
c＝4.800
Hkl d(
) (measured value) d(
) (calculated value) 1%(measured value)
211 2.9894 2.9890 20
310 2.7037 2.7058 14
301 2.4494 2.4511 42
002 2.3921 2.3955 22
400 2.1405 2.1401 78
321 2.1263 2.1275 100
202 2.0918 2.0908 69
420 1.9157 1.9145 15
411 1.9066 1.9055 15
222 1.8788 1.8790 29
312 1.7957 1.7947 8
510 1.6799 1.6795 8
501 1.6119 1.6130 5
332 1.5443 1.5442 9
440 1.5135 1.5141 23
521 1.5095 1.5096 16
422 1.4976 1.4964 12
530 1.4698 1.4690 14
303 1.3952 1.3948 6
512 1.3761 1.3760 7
611 1.3524 1.3512 11
323 1.3267 1.3263 19
532 1.2532 1.2530 15
631 1.2346 1.2342 23
602 1.2264 1.2269 35
550 1.2115 1.2119 5
004 1.1986 1.1991 34
622 1.1796 1.1795 5
721 1.1420 1.1430 9
Sm(TiFe wherein)
12Magnetic as follows:
The C axle is a direction of easy axis, anisotropy field H
A, under room temperature, be 104 kilooersteds; When temperature is 1.5K, its H
ABe 268 kilooersteds.Curie temperature Tc is 600K.Saturation magnetization Ms at room temperature is 935 Gausses; When temperature was 1.5K, Ms was 1027 Gausses.The theoretical value of maximum magnetic energy product (BH)
MaxAbout 41,000,000 is high difficult to understand.
Secondly, at above-mentioned R(Fe
1-xM
x)
12In the composition, other element such as Co, Ni, Cu, V, Cr, Mo, the Fe of Zr replacement equivalent or the Curie temperature Tc that M can further improve magnetic material of (atomic ratio 0.1% to 30%) in right amount mix, be that Tc can be up to 600-1000K, and improve saturation magnetic moment, can be as the Fe atomic magnetic moment from 1.65 μ
B-1.80 μ
B, and the coercive force of magnet can reach 6 kilooersteds-9 kilooersted.
In addition, this invention ThMn
12Fast cold-set process has been adopted in the making of the rare-earth-iron permanent magnet of type structure, makes the magnet of high-coercive force.The numerical value of its HCJ can reach 6 kilooersteds-9 kilooersted.
This technical process is: by prescription composition batching, master alloy melting in arc furnace or induction furnace.Foundry alloy is put into silica crucible or boron nitride crucible.The diameter of nozzle is the 0.1-1 millimeter, and the distance at nozzle and copper roller edge is the 0.1-0.5 millimeter, melts in induction furnace.Be ejected on the copper roller at the alloy that makes fusion under the high pressure ar gas acting then, the alloy chilling forms amorphous.The linear velocity of copper roller is the 20-25 meter per second.The amorphous thin ribbon that obtains is heated to 630-700 ℃ in a vacuum, makes the amorphous thin ribbon crystallization become crystallite.After 800-850 ℃ of heat treatment 5-10 minute, be quenched to room temperature then.
Its fast cold-set process process and each parameter can be summarized as follows:
On the basis of the above, can continue to hold concurrently with traditional sintered magnet technology, i.e. abrasive dust in addition, the magnetic field orientating die mould, sintering is made anisotropy magnet.
Because the magnetic material of this invention, its main component is an iron, and iron cheap, raw material is sufficient, yet performance can replace SmCo again
5Deng rare earth-cobalt permanent magnet.This is the Nd that continues
2Fe
14A kind of new rare earth-fe permanent magnetic material after the B.It can be widely used in electrical equipment, motor and the electronic instrument.
Embodiment
Smelting nut alloy, composition adopts SmTi(Fe
1-xT
x)
12, wherein T is its above-mentioned kind element, x is 0.01-0.2, will add excessive Sm(during prescription between 5%-30%).
Adopt fast cold-set process, make amorphous with the method that single roller is fast cold, about 25 meter per seconds of cooldown rate, to the amorphous sample heating crystallization of producing, about 640 ℃ of crystallization temperature is heat-treated again, about 800 ℃ of treatment temperature, about 10 minutes of temperature retention time.
Magnet performance is Curie temperature Tc600K-800K, HCJ iHc 6 kilooersteds-8 kilooersted.
Claims (1)
1, a kind of technology of making rare earth-fe permanent magnetic material, this permanent magnetic material is to have ThMn
12Type crystal structure, composition are R (Fe
1-xM
x)
12Intermetallic compound, wherein R is a rare earth element, M is an element, as Mn, Al, Ti, Ca, Zn etc., the value of x is 0.1-0.3, it is characterized in that comprising the following steps:
Foundry alloy is carried out fast cold curing processing make it form amorphous, copper roller linear velocity is the 20-25 meter per second, and the heating crystallization temperature is 630-700 ℃, and heat treatment temperature is 800-850 ℃, time 5-10 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101465 CN1019061B (en) | 1989-03-23 | 1989-03-23 | Rare-earth-iron permanent-magnet material of th-mn oral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101465 CN1019061B (en) | 1989-03-23 | 1989-03-23 | Rare-earth-iron permanent-magnet material of th-mn oral structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1045888A CN1045888A (en) | 1990-10-03 |
| CN1019061B true CN1019061B (en) | 1992-11-11 |
Family
ID=4854304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89101465 Expired CN1019061B (en) | 1989-03-23 | 1989-03-23 | Rare-earth-iron permanent-magnet material of th-mn oral structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019061B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10062482B2 (en) * | 2015-08-25 | 2018-08-28 | GM Global Technology Operations LLC | Rapid consolidation method for preparing bulk metastable iron-rich materials |
-
1989
- 1989-03-23 CN CN 89101465 patent/CN1019061B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045888A (en) | 1990-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7470804B2 (en) | Neodymium iron boron magnet material, raw material composition, and manufacturing method | |
| JP5754232B2 (en) | Manufacturing method of high coercive force NdFeB magnet | |
| JP2022535482A (en) | RTB Permanent Magnet Material, Manufacturing Method, and Application | |
| KR960008185B1 (en) | Rare Earth-Iron Permanent Magnet and Manufacturing Method Thereof | |
| CN110942877A (en) | Neodymium-iron-boron magnet and preparation method thereof | |
| JP2558095B2 (en) | Rare earth ferrous iron permanent magnet manufacturing method | |
| KR102712342B1 (en) | MAGNETIC SUBSTANCES BASED ON Mn-Bi-Sb AND FABRICATION METHOD THEREOF | |
| JPS63313807A (en) | Of highly efficient permanent magnet with high-anticorrosivity, and manufacture thereof | |
| EP0288637B1 (en) | Permanent magnet and method of making the same | |
| CN1019061B (en) | Rare-earth-iron permanent-magnet material of th-mn oral structure | |
| JP3488354B2 (en) | Method for producing microcrystalline permanent magnet alloy and isotropic permanent magnet powder | |
| CN1132399A (en) | Double-phase rare-earth-iron-boron magnetic powder and its prepn. method | |
| JPH0380508A (en) | Manufacture of rare earth element magnet | |
| JP2530185B2 (en) | Manufacturing method of permanent magnet | |
| JP2725004B2 (en) | Manufacturing method of permanent magnet | |
| JPH07123083B2 (en) | Cast rare earth-method for manufacturing iron-based permanent magnets | |
| KR930002559B1 (en) | Permanent magnet and making method thereof | |
| KR920003638B1 (en) | Permanent magnet and its manufacturing method | |
| JP2609106B2 (en) | Permanent magnet and manufacturing method thereof | |
| JPH05135976A (en) | Manufacture of permanent magnet | |
| JP2746111B2 (en) | Alloy for permanent magnet | |
| JPH06251917A (en) | Rare earth element permanent magnet | |
| JP2573865B2 (en) | Manufacturing method of permanent magnet | |
| JP2730441B2 (en) | Manufacturing method of alloy powder for permanent magnet | |
| JPH07135120A (en) | Manufacture of rare earth-iron based permanent magnet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |