CN107146707B - A kind of neodymium iron boron magnetic body grain boundary decision equipment - Google Patents
A kind of neodymium iron boron magnetic body grain boundary decision equipment Download PDFInfo
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- CN107146707B CN107146707B CN201710349995.6A CN201710349995A CN107146707B CN 107146707 B CN107146707 B CN 107146707B CN 201710349995 A CN201710349995 A CN 201710349995A CN 107146707 B CN107146707 B CN 107146707B
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- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 26
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 abstract description 18
- 238000012545 processing Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005303 antiferromagnetism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- -1 rare earth compound Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The present invention provides a kind of neodymium iron boron magnetic body grain boundary decision equipment, including fixed support structure, drive mechanism, magnet fixed structure and sealing structure.Fixed support structure supports other structures for fixed；Drive mechanism is used for the transmission of each structure in coating procedure；Magnet fixed structure is used to fix magnetic and diffusate；Sealing structure is used to seal magnet and diffusate.The grain boundary decision equipment of the present invention can handle two magnets simultaneously, form the structure that magnet diffusate magnet is overlapped mutually, improve DIFFUSION TREATMENT efficiency and diffusate utilization rate, it can ensure that magnet and diffusate are in close contact in entire diffusion process, be conducive to the increase of magnet diffusion depth, save the cost of grain boundary decision processing.
Description
Technical field
The present invention relates to field of rare-earth permanent magnetic, refer in particular to a kind of neodymium iron boron magnetic body grain boundary decision equipment.
Background technology
In rare earth permanent-magnetic material, the magnetic property of neodymium iron boron magnetic body at room temperature is better than other permanent-magnet materials, wide at present
It is general to be applied to the fields such as computer, communication, the network information and Medical Devices.Magnetic energy product and coercivity of Nd-Fe-B permanent magnet etc.
The raising of magnetic property is conducive to sintered magnet in motor market rapid growth.The common of neodymium iron boron magnetic body magnetic property is improved at present
Method has alloying and grain boundary decision facture.Alloying is mainly improved by intrinsic performance and microstructure improves two sides
The Curie temperature of magnet and intrinsic coercivity are improved in face, realize the temperature-compensating of Nd sublattice magnetic moments, and then it is steady to improve temperature
It is qualitative.Remanent magnetism and magnetic energy product through element alloyed treated magnet have larger loss.Grain boundary decision processing is more traditional
Element alloyed method can preferably improve the performance of magnet.Grain boundary decision is by spreading rare earth list into Nd-Fe-B permanent magnet
The inorganic rare earth compound of matter, rare earth alloy and H, O, F element improves the microstructure of magnet, makes Nd-rich phase in magnet
It is distributed on crystal boundary and more uniformly reduces the magnetic exchange coupling effect of matrix phase to improve the magnetic property of magnet.
Domestic and international many scholars have carried out grain boundary decision technology the extensive currently used grain boundary decision processing method of research
Mainly have：Sputtering method, vapour deposition process, surface are covered with osmosis etc..By these methods, neodymium iron boron magnetic body crystalline substance can be improved
Grain grain boundaries and magnet matrix are combined the institutional framework and ingredient in portion.After being handled by grain boundary decision, the Grain-Boundary Phase of magnet
A nonmagnetic transition zone can be formed between main phase, this transition zone contains the thulium of high concentration, makes magnet
Matrix phase crystal grain between each other isolate exist, reducing the anti-ferromagnetism of magnet improves the magnetic property of magnet.But often at present
There are multiple to grain boundary decision processing environment requirement height, experimental implementation in grain boundary decision processing procedure for grain boundary decision processing method
The problem of miscellaneous, of high cost.
Invention content
The object of the present invention is to provide a kind of neodymium iron boron magnetic body grain boundary decision equipment, overcome in grain boundary decision processing procedure
The problem of high, experimental implementation is complicated, of high cost is required grain boundary decision processing environment.
The technical scheme is that：A kind of neodymium iron boron magnetic body grain boundary decision equipment, including fixed support structure, transmission knot
Structure, magnet fixed structure and sealing structure；
The fixed support structure includes pedestal, spring, support plate, motor fixing plate, supporting rod and sealing drum；It is described close
The bottom of sealed tube is fixed on the upper surface of pedestal；Supporting rod is mounted in the inside of sealing drum, the lower end of supporting rod among pedestal；
The spring pocket is on supporting rod and one end is against base upper surface, and the other end is against the bottom of the first magnet fixing piece, there is one
Determine decrement；The support plate is detachably mounted to the upper surface of sealing drum；Motor fixing plate is fixed on the side of support plate；
The drive mechanism includes motor, shaft coupling, end cap, bearing and axis；One end of the motor and axis passes through
Shaft coupling connects；It is upper in the hole of support plate and in bearing that the bearing is placed in the end cap in the hole among support plate
On end face；The other end of the axis sequentially passes through end cap, bearing and gasket perpendicular to the upper surface of support plate；The magnet
Fixed structure includes the first magnet fixing piece and the second magnet fixing piece；The first magnet fixing piece in the inside of sealing drum,
The upper end vertical connection of first magnet fixing piece and supporting rod；Second magnet fixing piece is placed in the first magnet fixing piece, and second
The lower end vertical connection of magnet fixing piece and axis；Motor drives the second magnet fixing piece to do rotation fortune by shaft coupling and axis
It is dynamic；In diffusion process, the first magnet fixing piece and lower magnet are motionless, and the second magnet fixing piece drives upper magnet rotation and diffusion
Substance and lower magnet generate relative motion, mutual frictional heat；
The sealing structure includes sealing ring, gasket and sealing filler；The sealing ring is sleeved on the first magnet and fixes
The outer surface of part；Gasket is sleeved on axis and between the upper surface of the second magnet fixing piece and the lower surface of support plate；Institute
Sealing filler is stated between the first magnet fixing piece and the second magnet fixing piece.
In said program, the centre of the pedestal is provided with and the matched rectangle blind hole in supporting rod lower end, supporting rod lower end
In rectangle blind hole.
In said program, the upper end of the first magnet fixing piece and supporting rod is connected through a screw thread, and spring pocket is supporting
On bar, and spring has certain decrement.Supporting rod and the first magnet fixing piece can move up and down in sealing drum.Bullet
Spring has decrement, plays the role of upward power always to the first magnet fixing piece, can ensure in this way in entire diffusion process
Middle magnet and diffusate are in close contact, and are not influenced by diffusate volume change.Supporting rod can guarantee the deformation of spring all
It is to shrink or reply on this straight line of supporting rod.
In said program, the upper surface of the first magnet fixing piece is provided with to match with the outer surface of the second magnet fixing piece
The blind round hole of conjunction, the second magnet fixing piece are mounted in blind round hole, and the bottom of the blind round hole is provided with and lower magnet mistake
It is full of the rectangle pit of cooperation.
In said program, the inside of the second magnet fixing piece is provided with and the matched rectangle pit of upper magnet.
In said program, the both sides of the sealing ring are provided with air hole, it is ensured that discharge gasket lower surface and sealing
Air between the plane that circle upper surface-upper magnet fixing piece upper surface-lower magnet fixing piece upper surface is formed.Sealing ring with
Matching for sealing drum is combined into interference fit.
In said program, the sealing is lined with decrement, avoids, because the abrasion of gasket causes air remaining, influencing to expand
Effect is dissipated, and discharge gasket lower surface can also be played and consolidated with sealing ring upper surface-upper magnet fixing piece upper surface-lower magnet
Determine the effect of the air between the plane that part upper surface is formed.Gasket and matching for sealing drum are combined into interference fit.
In said program, the sealing filler fills up entire between the first magnet fixing piece and the second magnet fixing piece
Space.There are two the effect of filler is main：First, filler fills up entire space and can exclude completely in lower magnet fixing piece
Air between chamber and upper magnet fixing piece inner cavity；Second, filler fills up entire space, even if diffusate has solid-state to become
Liquid will not cause diffusate excessive.
In said program, the material of the sealing structure is all made of heat safe expanded graphite packing, graphite packing tool
There are very high wear-resisting, high temperature resistance, will not be polluted in entire diffusion process.
In said program, the side of the sealing drum is provided with watch window, convenient for observing entire diffusion process.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the grain boundary decision processing equipment of the present invention can handle two magnets simultaneously, magnet-diffusate-magnet is formed
The structure being overlapped mutually improves DIFFUSION TREATMENT efficiency and diffusate utilization rate.
2. spring of the present invention has certain decrement, there is upward active force to the first magnet fixing piece, the
One magnet fixing piece, the second magnet fixing piece and spring can ensure that magnet and diffusate closely connect in entire diffusion process
It touches, is conducive to the increase of magnet diffusion depth.
3. the grain boundary decision processing equipment of the present invention can be such that magnet and diffusate is not contacted with air in itself, to experiment
Environmental requirement it is not high be conducive to save grain boundary decision processing cost.
4. the grain boundary decision processing equipment of the present invention is simple in structure, the cost of manufacture grain boundary decision processing equipment is reduced.
5. the grain boundary decision processing equipment of the present invention operates steadily, diffusion is uniform, efficient.
Description of the drawings
Fig. 1 is the brief assembling schematic diagram of the grain boundary decision equipment of one embodiment of the present invention.
In figure, 1-pedestal；2-spring；3-air hole；4-sealing ring；5-gasket；6-support plate；7-bearing；
8-end cap；9-shaft coupling；10-motor；11-motor fixing plate；12-axis；13-the second magnet fixing piece；14-on
Magnet；15-diffusate；16-lower magnet；17-sealing filler；18-the first magnet fixing piece；19-supporting rod；
20-sealing drum.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description, but protection scope of the present invention
It is not limited to this.
Fig. 1 show a kind of embodiment of neodymium iron boron magnetic body grain boundary decision equipment of the present invention, uses the neodymium iron boron
Magnet grain boundary decision equipment carries out grain boundary decision processing to Nd-Fe-B magnets, so as to obtain high performance Nd-Fe-B magnets.Institute
Neodymium iron boron magnetic body grain boundary decision equipment is stated, including fixed support structure, drive mechanism, magnet fixed structure and sealing structure.Gu
Determine support construction, other structures are supported for fixed；Drive mechanism is used for the transmission of each structure in coating procedure；Magnet is fixed
Structure is used to fix magnetic and diffusate；Sealing structure is used to seal magnet and diffusate.
The fixed support structure includes pedestal 1, spring 2, support plate 6, motor fixing plate 11, supporting rod 19 and sealing drum
20；The bottom of sealing drum 20 is fixed by screws in the upper surface of pedestal 1；Supporting rod 19 is in the inside of sealing drum 20, supporting rod
19 lower end is positioned in the rectangle blind hole among pedestal 1, and the upper end of supporting rod 19 is connected through a screw thread to be fixed with the first magnet
Part 18 is connected, and for supporting rod 19 perpendicular to the lower surface of the first magnet fixing piece 18,19 and first magnet fixing piece 18 of supporting rod can
It is moved up and down in sealing drum 20.Spring 2 is sleeved on supporting rod 19；Support plate 6 is fixed by screws in the upper table of sealing drum 20
Face；Motor fixing plate 11 is fixed by screws in the left side of support plate 6.Spring 2 has upwards the first magnet fixing piece 18 always
Active force, upper magnet 14 and lower magnet 16 can be made to be in close contact in entire diffusion process with diffusate 15, be conducive to
Increase diffusion depth.The side of the sealing drum 20 is provided with peep hole, convenient for observing entire diffusion process.
The drive mechanism includes motor 10, shaft coupling 9, end cap 8, bearing 7 and axis 12；The top half of shaft coupling 9
It is connected by screw with motor 10,9 lower half portion of shaft coupling is connected by screw with 12 upper end of axis, motor 10 and axis 12
It is connected by shaft coupling 9；Bearing 7 is positioned in the stepped hole among support plate 6, the end face of bearing 7 and the upper surface of support plate 6
It is parallel；End cap 8 is in the stepped hole of support plate 6, on the upper surface of bearing 7；Axis 12 perpendicular to the upper surface of support plate 6,
End cap 8, bearing 7 and gasket 5 are sequentially passed through, the lower end of axis 12 is connected through a screw thread to be connected with the second magnet fixing piece 13.Electricity
Motivation 10 directly drives the second magnet fixing piece 13, transmission efficiency by shaft coupling 9 and axis 12.
The magnet fixed structure includes the first magnet fixing piece 18 and the second magnet fixing piece 13；First magnet fixing piece
18 in the inside of sealing drum 20, and the first magnet fixing piece 18 is connected through a screw thread to be connected with the upper end of supporting rod 19, the first magnet
The lower surface of fixing piece 18 is vertical with supporting rod 19；The upper surface of the first magnet fixing piece 18 is provided with to be fixed with the second magnet
The matched blind round hole in outer surface of part 13, the second magnet fixing piece 13 are mounted in blind round hole, the blind round hole
Bottom is provided with the rectangle pit being interference fitted with lower magnet 16, and lower magnet 16 is mounted on the rectangle pit of the first magnet fixing piece 18
In.Second magnet fixing piece 13 is connected through a screw thread with the lower end of axis 12 to be connected, the upper surface of the second magnet fixing piece 13 and axis
12 is vertical.The inside of the second magnet fixing piece 13 is provided with installs with 14 matched rectangle pit of upper magnet, upper magnet 14
In the rectangle pit of two magnet fixing pieces 13.
The sealing structure includes sealing ring 4, gasket 5 and sealing filler 17；Sealing ring 4 is sleeved on the first magnet and consolidates
Determine the outer surface of part 18；The both sides of the sealing ring 4 are provided with air hole 3, and sealing ring 4 and sealing drum 20 are matched with being combined into interference
It closes.Gasket 5 is located inside sealing drum 20, is sleeved on axis 12, in the upper surface of the second magnet fixing piece 13 and support plate 6
Lower surface between, the gasket 5 has certain decrement, and gasket (5) and sealing drum (20) are with being combined into interference fit；
Sealing filler 17 is described close and fill up the first magnet and consolidate between the first magnet fixing piece 18 and the second magnet fixing piece 13
Determine the entire space between 18 and second magnet fixing piece 13 of part.The material of the sealing structure is all heat safe expanded graphite
Packing is made.
Using the present invention carry out grain boundary decision processing when the step of be specially：
Step 1：Manually support plate 6 is opened, by gasket 5, support plate 6, bearing 7, end cap 8, shaft coupling 9, motor
10th, motor fixing plate 11,12 and second magnet fixing piece 13 of axis take out together；
Step 2：Lower magnet 16 is placed in the first magnet fixing piece 18；
Step 3：Suitable diffusate 15 is uniformly coated on to the upper surface of lower magnet 16；
Step 4：By suitable sealing filler matter 17 be filled in 18 inner wall of the first magnet fixing piece and lower magnet 16 it
Between；
Step 5：Upper magnet 14 is placed in the second magnet fixing piece 13；
Step 6：Manually support plate 6 is covered, by gasket 5, support plate 6, bearing 7, end cap 8, shaft coupling 9, motor
10th, motor fixing plate 11,12 and second magnet fixing piece 13 of axis are replaced together；
Step 7：Support plate 6 is fixed on sealing drum 20；
Step 8：Start motor 10；
Step 9：It is observed by peep hole and controls diffusion process, treat to stop motor 10 after the completion of DIFFUSION TREATMENT；
Step 10：Repeat step 1；
Step 11：By upper magnet 14 and lower magnet 16 respectively from the second magnet fixing piece 13 and the first magnet fixing piece 18
Middle taking-up；
Step 12：Repeat step 6.
Diffusate can be uniformly diffuse into upper magnet 14 and lower magnet 16 by the present invention, easy to operate, to diffuser ring
Mirror is of less demanding, can significantly improve DIFFUSION TREATMENT efficiency and the utilization rate of diffusate.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
Bright book is as an entirety, and the technical solutions in each embodiment can also be properly combined, and forming those skilled in the art can be with
The other embodiment of understanding.
Those listed above is a series of to be described in detail illustrating only for possible embodiments of the invention,
They are not to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change
It should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of neodymium iron boron magnetic body grain boundary decision equipment, which is characterized in that solid including fixed support structure, drive mechanism, magnet
Determine structure and sealing structure；
The fixed support structure include pedestal (1), spring (2), support plate (6), motor fixing plate (11), supporting rod (19) and
Sealing drum (20)；The bottom of the sealing drum (20) is fixed on the upper surface of pedestal (1)；Supporting rod (19) is in sealing drum (20)
Inside, the lower end of supporting rod (19) are mounted among pedestal (1)；The spring (2) is sleeved on supporting rod (19) and one end is against
Pedestal (1) upper surface, the other end are against the bottom of the first magnet fixing piece (18), and spring (2) has decrement；The support plate
(6) it is detachably mounted to the upper surface of sealing drum (20)；Motor fixing plate (11) is fixed on the side of support plate (6)；
The drive mechanism includes motor (10), shaft coupling (9), end cap (8), bearing (7) and axis (12)；The motor
(10) it is connected with one end of axis (12) by shaft coupling (9)；The bearing (7) is placed in the end in the intermediate hole of support plate (6)
(8) are covered in the hole of support plate (6) and on the upper surface in bearing (7)；The other end of the axis (12) is perpendicular to support plate
(6) upper surface sequentially passes through end cap (8), bearing (7) and gasket (5)；The magnet fixed structure is consolidated including the first magnet
Determine part (18) and the second magnet fixing piece (13)；The first magnet fixing piece (18) is in the inside of sealing drum (20), the first magnetic
The upper end vertical connection of body fixing piece (18) and supporting rod (19)；Second magnet fixing piece (13) is placed in the first magnet fixing piece
(18) in, the lower end vertical connection of the second magnet fixing piece (13) and axis (12)；
The sealing structure includes sealing ring (4), gasket (5) and sealing filler (17)；The sealing ring (4) is sleeved on first
The outer surface of magnet fixing piece (18)；Gasket (5) is sleeved on axis (12) and positioned at the upper surface of the second magnet fixing piece (13)
Between the lower surface of support plate (6)；The sealing filler (17) is consolidated positioned at the first magnet fixing piece (18) and the second magnet
Determine between part (13).
2. a kind of neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the pedestal (1)
Centre, which is provided with, to be mounted on the matched rectangle blind hole in supporting rod (19) lower end, supporting rod (19) lower end in rectangle blind hole.
A kind of 3. neodymium iron boron magnetic body grain boundary decision equipment according to claim 1 or 2, which is characterized in that first magnetic
Body fixing piece (18) is connect with the threaded upper ends of supporting rod (19), and supporting rod (19) and the first magnet fixing piece (18) can seal
It is moved up and down in cylinder (20).
4. a kind of neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that first magnet is consolidated
The upper surface for determining part (18) is provided with the matched blind round hole in outer surface with the second magnet fixing piece (13), and the second magnet is fixed
For part (13) in blind round hole, the bottom of the blind round hole is provided with the rectangle pit being interference fitted with lower magnet (16).
5. a kind of neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that second magnet is consolidated
The inside for determining part (13) is provided with and the matched rectangle pit of upper magnet (14).
A kind of 6. neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the sealing ring (4)
Both sides be provided with air hole (3), sealing ring (4) and sealing drum (20) are with being combined into interference fit.
A kind of 7. neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the gasket (5)
There is decrement, gasket (5) is combined into interference fit with matching for sealing drum (20).
A kind of 8. neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the sealing filler
(17) the entire space between the first magnet fixing piece (18) and the second magnet fixing piece (13) is filled up.
9. a kind of neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the sealing structure
Material is all made of heat safe expanded graphite packing.
A kind of 10. neodymium iron boron magnetic body grain boundary decision equipment according to claim 1, which is characterized in that the sealing drum
(20) side is provided with watch window.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349995.6A CN107146707B (en) | 2017-05-18 | 2017-05-18 | A kind of neodymium iron boron magnetic body grain boundary decision equipment |
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|---|---|---|---|
| CN201710349995.6A CN107146707B (en) | 2017-05-18 | 2017-05-18 | A kind of neodymium iron boron magnetic body grain boundary decision equipment |
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| CN107146707A CN107146707A (en) | 2017-09-08 |
| CN107146707B true CN107146707B (en) | 2018-06-26 |
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| CN114883104A (en) * | 2022-05-06 | 2022-08-09 | 中国科学院宁波材料技术与工程研究所 | Processing method for grain boundary diffusion of neodymium iron boron magnet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011103104A2 (en) * | 2010-02-17 | 2011-08-25 | Electron Energy Corporation | Rare earth laminated, composite magnets with increased electrical resistivity |
| JP2013149862A (en) * | 2012-01-20 | 2013-08-01 | Toyota Motor Corp | Method of manufacturing rare earth magnet |
| CN205104360U (en) * | 2015-11-30 | 2016-03-23 | 宁波可可磁业有限公司 | Tamping plant of neodymium iron boron magnet |
| CN205763844U (en) * | 2016-05-27 | 2016-12-07 | 何欢 | Anisotropy neodymium iron boron radiation ring rotating excitation field press |
| CN106571220A (en) * | 2016-10-28 | 2017-04-19 | 江苏大学 | Coating equipment for NdFeB magnet crystal boundary diffusion processing |
-
2017
- 2017-05-18 CN CN201710349995.6A patent/CN107146707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011103104A2 (en) * | 2010-02-17 | 2011-08-25 | Electron Energy Corporation | Rare earth laminated, composite magnets with increased electrical resistivity |
| JP2013149862A (en) * | 2012-01-20 | 2013-08-01 | Toyota Motor Corp | Method of manufacturing rare earth magnet |
| CN205104360U (en) * | 2015-11-30 | 2016-03-23 | 宁波可可磁业有限公司 | Tamping plant of neodymium iron boron magnet |
| CN205763844U (en) * | 2016-05-27 | 2016-12-07 | 何欢 | Anisotropy neodymium iron boron radiation ring rotating excitation field press |
| CN106571220A (en) * | 2016-10-28 | 2017-04-19 | 江苏大学 | Coating equipment for NdFeB magnet crystal boundary diffusion processing |
Non-Patent Citations (1)
| Title |
|---|
| 《烧结钕铁硼的晶界扩散改性、结构与性能研究进展》;崔熙贵，王兴华，崔承云，阴冠超，方翠，夏传达;《稀有金属》;20141130;第38卷(第6期);全文 * |
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