CN106876086A - Magnetize single permanent magnet, magnetic circuit, mould and its manufacture method more - Google Patents
Magnetize single permanent magnet, magnetic circuit, mould and its manufacture method more Download PDFInfo
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- CN106876086A CN106876086A CN201710046167.5A CN201710046167A CN106876086A CN 106876086 A CN106876086 A CN 106876086A CN 201710046167 A CN201710046167 A CN 201710046167A CN 106876086 A CN106876086 A CN 106876086A
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- magnetic part
- magnetic
- magnetization
- single permanent
- permanent magnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- 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
- H01F41/0273—Imparting anisotropy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/031—Press-moulding apparatus therefor with punches moving in different directions in different planes
Abstract
The present invention relates to magnetize single permanent magnet, magnetic circuit, mould and its manufacture method one kind more.Belong to magnet technical field.Employ the single permanent magnet of many magnetization, magnetic circuit, mould and its manufacture method of the invention, because many single permanent magnets of magnetization have multiple magnetic anisotropies in single permanent magnet such that it is able to constitute the Halbach magnetic circuit being made up of the different multiple permanent magnet arrangements of the direction of magnetization by using less permanent magnet.Overcome in the prior art cut magnet precision it is poor, combined magnet there may be a series of problem such as deviation.
Description
Technical field
The present invention relates to magnet technical field, more particularly to permanent magnet technical field specifically refers to magnetize list one kind more
Individual permanent magnet, magnetic circuit, mould and its manufacture method.
Background technology
In general, (that is, uniaxial magnetic is respectively to different for a magnetic anisotropy for permanent magnet only one of which direction of easy axis
Property), there is the magnetic pole that N poles and S poles are constituted on two mutually relative faces.This permanent magnet is mechanical, electrical in motor, generating
It is widely adopted in the various equipment such as magnetic driver, electromagnetic sensor.These machine common configurations multiple permanent magnet.
In addition, in the space for having magnetic field, allowing it to send the magnetic field with high magnetic flux density and producing magnetic circuit, sea is thus proposed
That Bake (Halbach) magnetic circuit.
The JP 2005-101437 of patent document 1 is disclosed including fitting field generator for magnetic including Halbach magnetic circuit
For the extrusion forming device in magnetic field.And, patent document 1 is also disclosed using the field generator for magnetic, to by magnetic iron powder
The compound that end and resin are formed applies magnetic field, so as to the formed body for being oriented, the side of magnet is obtained according to the formed body
Method.Also describe according to can obtain possessing stable magnetic field intensity, magnetic field uniformity and magnetic field using Halbach magnetic circuit
The formed body of the depth of parallelism.
The JP 2010-50440 of patent document 2 is disclosed and used Halbach magnetic circuit as linear electric motors with magnetic circuit.
Specifically, patent document 2 is clearly stated magnet assembly with magnet after magnet after first sintering and second sintering.
Magnet has the direction of magnetization being orthogonal with main face after first sintering；Magnetic after magnet is sintered at first after second sintering
The two ends of iron have to be orthogonal on direction with main face the direction of magnetization at certain angle of inclination.It is described in patent document 2
Magnet assembly is that the two ends glue of magnet after being sintered at first is glued together magnet after two sintering, while surface is used
Film wraps up what is constituted.
The JP 2010-258181 of patent document 3 discloses each anisotropy magnet used on the rotor of motor.Patent
Document 3 describes each anisotropy magnet has crescent-like cross-section, and has what is be in an inclined direction magnetized from differently- oriented directivity
Region, the region being also magnetized in the orientation direction.And, patent document 3 also describes the orientation for magnet after sintering
Direction, magnetic field is inclined and is magnetized, and thus controls the direction of magnetization.
The shortcoming of above-mentioned prior art is：
Patent document 1 only discloses and Halbach magnetic circuit is used in field generator for magnetic, but does not refer to composition Haier
Magnet of Bake magnetic circuit etc..
In addition, as described in patent document 2, cutting the magnet with single shaft magnetic anisotropy, combined by by multiple magnet,
When Halbach magnetic circuit is constituted, deterioration in accuracy during magnet is cut, and combine the operation of these magnet so that productivity ratio becomes
Difference.Especially when the different multiple magnet of the direction of magnetization are combined to constitute Halbach magnetic circuit, due between magnet
Attracting and effect of repelling each other etc., is susceptible to position deviation.Also, patent document 3 only indicates the anisotropy with crescent shape
Magnet, without referring to cross sectional shape (e.g., cuboid or circular arc) beyond crescent-like cross-section etc..In addition, also without dark
Show that patent document 3 is applied to Halbach magnetic circuit etc..
It is an object of the present invention to provide a kind of magnetic with mutually different multiple directions inside single magnet it is each to
The opposite sex, forms the magnetized magnet of multiple directions.(i.e.：Magnetize single permanent magnet) more.
Another purpose of the invention is to provide the Halbach being made up of above-mentioned many single permanent magnets of magnetization
(Halbach) magnetic circuit.
Other purpose of the invention is to provide the mould used when the single permanent magnet of above-mentioned many magnetization is manufactured.
Other objects of the present invention are to provide a kind of manufacture method of many single permanent magnets of magnetization.This magnet has phase
Magnetic anisotropy between mutually, that is, there are different multiple direction of magnetizations each other.
The content of the invention
The purpose of the present invention is to overcome above-mentioned shortcoming of the prior art, there is provided one kind can effectively overcome in the prior art
The single permanent magnet of many magnetization of drawbacks described above, magnetic circuit, mould and its manufacture method.
In order to realize above-mentioned purpose, many single permanent magnets of magnetization of the invention have following composition：
The single permanent magnets of many magnetization include the first main face second main face relative with the first main face, with
And some sides between the first described main face and the second main face, described the first main face, the second main face
And there is the first magnetized area and the second magnetized area between some sides, described the first magnetized area have with it is described
The first parallel direction of magnetization of first main face and the second main face；The second described magnetized area and the first described magnetized area
Domain is adjacent, and with second direction of magnetization vertical with the first described direction of magnetization.
In many single permanent magnets of magnetization, the first described magnetized area is located to be led along the described first main face and second
The center section of face length direction is wanted, the second described magnetized area includes being located at the first described magnetized area both sides respectively
First side magnetized area and second side magnetized area.
In the single permanent magnets of many magnetization, second direction of magnetization and second side of described first side magnetized area
Second direction of magnetization of magnetized area has antipolarity.
Many single permanent magnets of magnetization are rectangle.
Magnetic circuit of the invention is the Halbach magnetic circuit being made up of multiple many single permanent magnets of magnetization described above.
Many single permanent magnet moulds of magnetization of the invention include the first non-magnetic part, the second non-magnetic part, the 3rd
Non-magnetic part, the 4th non-magnetic part, the first magnetic part, the second magnetic part, the 3rd magnetic part and the 4th magnetic portion
Part, and the die hole for being formed is enclosed by above-mentioned part.
Wherein, described die hole has main with the first main face of the above-mentioned single permanent magnet of many magnetization and second
First inwall and the second inwall of face matching, and be connected between described the first inwall and the second inwall, and with
The first side wall and second sidewall of two sides matching of the described single permanent magnet of many magnetization,
There is described the first side wall on the first described non-magnetic part；
Described the first magnetic part and the second described magnetic part is divided into the two of the first described non-magnetic part
Side, the first described inwall is close to the part of described the first side wall and is located on the first described magnetic part, and described second
Inwall is on the second magnetic part that the part of described the first side wall is located at described；
There is described second sidewall on the second described non-magnetic part；
Described the 3rd magnetic part and the 4th described magnetic part is divided into the two of the second described non-magnetic part
Side, the first described inwall is close to the part of described second sidewall and is located on the 3rd described magnetic part, and described second
Inwall is on the 4th magnetic part that the part of described second sidewall is located at described；
The 3rd described non-magnetic part is located between described the first magnetic part and the 3rd described magnetic part, institute
The center section of the first inwall stated is located on the 3rd non-magnetic part,
The 4th described non-magnetic part is located between described the second magnetic part and the 4th described magnetic part, institute
The center section of the second inwall stated is located on the 4th non-magnetic part.
Many single permanent magnet moulds of magnetization of the invention are powder magnet mould, and die hole is rectangle.
The present invention also provides a kind of many single Permanent Magnnet Manufacturing Approach of magnetization, and the method is comprised the following steps：
(1) to filling Magnaglo in the die hole of the above-mentioned single permanent magnet mould of many magnetization；
(2) the 3rd magnetic part and the 4th magnetic in described the first magnetic part and the second magnetic part and corresponding thereto
Property part between apply magnetic field, center section between described the first inwall and the second inwall is formed has the first magnetization side
To the first magnetized area；
(3) the second magnetic part and the 4th magnetic in described the first magnetic part and the 3rd magnetic part and corresponding thereto
Apply magnetic field between property part, the two side portions outside the center section between described the first inwall and the second inwall
The second magnetized area with second direction of magnetization is formed, second direction of magnetization is perpendicular to the first described direction of magnetization.
It is further comprising the steps of after described step (1) in many single Permanent Magnnet Manufacturing Approach of magnetization：
(1-1) carries out press-powder to described Magnaglo, forms powder compact.
It is further comprising the steps of after described step (1-1) in many single Permanent Magnnet Manufacturing Approach of magnetization：
(1-2) magnetizes to described powder compact, forms permanent magnet.
The single permanent magnet of many magnetization, magnetic circuit, mould and its manufacture method of the invention are employed, because many magnetization are single
Individual permanent magnet has multiple magnetic anisotropies in single permanent magnet such that it is able to by using less permanent magnet
To constitute the Halbach magnetic circuit being made up of the different multiple permanent magnet arrangements of the direction of magnetization.Overcome and cut in the prior art
Magnet precision is poor, and combined magnet there may be a series of problem such as deviation.
Brief description of the drawings
Fig. 1 is that the outward appearance of many single permanent magnets of magnetization of the invention constitutes schematic diagram.
Fig. 2 is many single permanent magnet principle explanation schematic diagrames of magnetization of the invention.
Fig. 3 is the magnetization aspect plan of many single permanent magnets of magnetization of the invention.
Fig. 4 be many single permanent magnets of magnetization of the invention manufacture method in the powder magnet mould cross section that uses
Figure.
Fig. 5 is the stereogram of the magnetic part in many single permanent magnet moulds of magnetization of the invention.
Fig. 6 is the schematic diagram of applying magnetic field step (2) in the manufacture method for magnetizing single permanent magnet of the invention more.
Fig. 7 is the schematic diagram of applying magnetic field step (3) in the manufacture method for magnetizing single permanent magnet of the invention more.
Fig. 8 be many single permanent magnets of magnetization of the invention manufacture method in the method that is magnetized to first direction of magnetization.
Fig. 9 be many single permanent magnets of magnetization of the invention manufacture method in first side magnetized area is magnetized
Method.
Figure 10 be many single permanent magnets of magnetization of the invention manufacture method in second side magnetized area is filled
The method of magnetic.
Figure 11 is using the configuration schematic diagram in motor by many single permanent magnets of magnetization of the invention.
Figure 12 is that processing method when many single permanent magnets of magnetization of the invention are used for into electric rotating machine, generator is illustrated
Figure.
Figure 13 is the schematic diagram on electric rotating machine or generator by many single permanent magnet configurations of magnetization of the invention.
Figure 14 is the schematic diagram that the various pieces of many single permanent magnets of magnetization of the invention are carried out with magnetic measurement.
Label declaration
Magnetizing single permanent magnet 10 more
11 first magnetized areas
12 second magnetized areas
121 first side magnetized areas
122 second side magnetized areas
20 moulds
21 first non-magnetic parts
22 second non-magnetic parts
25 first magnetic parts
26 second magnetic parts
27 the 3rd magnetic parts
28 the 4th magnetic parts
30 die holes
31 the 3rd non-magnetic parts
32 the 4th non-magnetic parts
40 field generator for magnetic
43 magnetic directions
Specific embodiment
In order to be more clearly understood that technology contents of the invention, described in detail especially exemplified by following examples.
Refer to shown in Fig. 1, be that the outward appearance of many single permanent magnets of magnetization of the invention constitutes schematic diagram.
In one embodiment, as shown in Figure 1 to Figure 3, many single permanent magnets 10 of magnetization are rectangle, including the
One main face (top surface above in Fig. 1), the second main face relative with the first main face is (underlying in Fig. 1
Bottom surface) and some sides (two sides and front in Fig. 1 between the first described main face and the second main face
And the back side).Described the first main face, there is the first magnetized area 11 and the second magnetic between the second main face and some sides
Change region 12.As shown in Figures 2 and 3, the first described magnetized area 11 has main with the first described main face and second
The first parallel direction of magnetization of face；The second described magnetized area 12 is adjacent with the first described magnetized area 11, and with
The second vertical direction of magnetization of the first described direction of magnetization.
In a preferred embodiment, as shown in Figure 1 to Figure 3, the first described magnetized area 11 is located at along described first
Main face and the center section of the second main face length direction, the second described magnetized area 12 include being located at respectively described the
The first side magnetized area 121 and second side magnetized area 122 of the both sides of one magnetized area 11.And as shown in Figures 2 and 3,
Second direction of magnetization of described first side magnetized area and second direction of magnetization of second side magnetized area have inverse pole
Property.
Specifically, the single permanent magnet 10 of many magnetization in Fig. 1 is rectangular.The left and right directions of diagram is length side
To above-below direction is thickness direction, and the face in figure towards top is the first main face, and the lower section relative with the first main face
Face be the second main face.In addition, it is illustrated that the single permanent magnet 10 of many magnetization also have figure left and right directions two ends, with institute
First and second side that the first and second main faces stated are respectively connected with, and on front side of the figure with rear side before with it is rear
Face.
In Fig. 1, interval and direction between first and second side are length and length direction, first and second main face
Between interval and direction be thickness and thickness direction, before interval between the back side and direction be amplitude and amplitude direction.
As shown in Figures 2 and 3, magnetize single permanent magnet 10 with the first magnetized area in length direction center section more
Domain 11 and second magnetized area 12 adjacent with the first magnetized area 11.That is the second magnetized area 12 contains first
With the first side magnetized area 121 and second side magnetized area 122 of second side.
As shown in Figures 2 and 3, first direction of magnetization of the first magnetized area 11 and the second magnetic in the second magnetized area 12
Change is substantially orthogonal between direction.In addition, being located at the of first and second side for constituting the second magnetized area respectively
Second direction of magnetization on one side magnetized area 121 and second side magnetized area 122, then differ 180 degree.That is, the first side
Second direction of magnetization of face magnetized area 121 is opposite with second direction of magnetization on second side magnetized area 122.
The present invention also provides a kind of magnetic circuit, and in one embodiment, the magnetic circuit is single permanent by above-mentioned many magnetization
The Halbach magnetic circuit of magnet composition.Specifically, the Halbach for up to the present needing to use 3 permanent magnets to constitute
Magnetic circuit, only need to can just be constituted more by magnetizing single permanent magnet one now.
The present invention also provides a kind of many single permanent magnet moulds of magnetization.In one embodiment, such as the institute of Fig. 4,5,6,7
Show, many single permanent magnet moulds 20 of magnetization are powder magnet mould, and die hole 30 is rectangle.The mould 20 includes the
One non-magnetic part 21, the second non-magnetic part 22, the 3rd non-magnetic part 31, the 4th non-magnetic part 32, the first magnetic portion
Part 25, the second magnetic part 26, the 3rd magnetic part 27 and the 4th magnetic part 28, and by above-mentioned part 21,22,31,32,
25th, 26,27,28 the die hole 30 to be formed is enclosed.Described die hole 30 has and the above-mentioned single permanent magnet 10 of many magnetization
The first main face and the matching of the second main face the first inwall and the second inwall, and be connected to the first described inwall
And second between inwall, and the first side wall and second matched with two sides of the single permanent magnet 10 of described many magnetization
Side wall.
Wherein, as shown in Fig. 4,6,7, there is described the first side wall on the first described non-magnetic part 21；
Described the first magnetic part 25 and the second described magnetic part 26 is divided into the first described non-magnetic part
21 both sides, the first described inwall is close to the part of described the first side wall and is located on the first described magnetic part 25, institute
The second inwall stated is on the second magnetic part 26 that the part of described the first side wall is located at described；
There is described second sidewall on the second described non-magnetic part 22；
Described the 3rd magnetic part 27 and the 4th described magnetic part 28 is divided into the second described non-magnetic part
22 both sides, the first described inwall is close to the part of described second sidewall and is located on the 3rd described magnetic part 27, institute
The second inwall stated is on the 4th magnetic part 28 that the part of described second sidewall is located at described；
The 3rd described non-magnetic part 31 is located at described the first magnetic part 25 and the 3rd described magnetic part 27
Between, the center section of the first described inwall is located on the 3rd non-magnetic part 31,
The 4th described non-magnetic part 32 is located at described the second magnetic part 26 and the 4th described magnetic part 28
Between, the center section of the second described inwall is located on the 4th non-magnetic part 32.
Specifically, Fig. 2 illustrate the single permanent magnet 10 of many magnetization shown in Fig. 1 from above observe when magnetic it is each incorgruous
Property direction.More details refers to that the first magnetized area 11 of the single permanent magnet 10 of many magnetization shown in Fig. 2 is by relative to
What one length direction parallel with the second main face was oriented, there is magnetic anisotropy direction in the longitudinal direction.That is, the
First direction of magnetization of one magnetized area 11 is the length direction (left and right directions) of many single permanent magnets 10 of magnetization, the first magnetization
Region 11 is magnetized in the longitudinal direction.
On the other hand, the first side magnetized area 121 and second side magnetized area 122 of the second magnetized area 12 are constituted
Substantially magnetized into second direction of magnetization of vertical direction (it is, thickness direction) with first direction of magnetization.
Reference picture 3, illustrates the concrete condition in the direction of magnetization for magnetizing single permanent magnet 10 more.
First direction of magnetization is the direction from the left side of Fig. 3 to the right.On the other hand, the He of first side magnetized area 121
Second side magnetized area 122 with first direction of magnetization substantially into being magnetized on vertical direction.First side magnetized area
Domain 121 is mainly directed towards on the direction in the second main face by first and is magnetized, and second side magnetized area 122 is from the second main face
It is magnetized on direction to the first main face.Therefore, second direction of magnetization in the second magnetized area 12 be it is mutually opposite into
180 degree.
Reference picture 4, illustrates the manufacture method of the single permanent magnet 10 of many magnetization shown in Fig. 2 and Fig. 3.Fig. 2 and Fig. 3 institutes
The single permanent magnet 10 of many magnetization for showing is first to dissolve alloy, then after being crushed, is finally shaped by Magnetic field press.
First to being illustrated with mould using the powder magnet in Magnetic field press.
Reference picture 4, illustrates the mould of the powder magnet on one embodiment of the present invention 20.Mould 20 is in centre
There is a rectangular die hole 30 part.Each face of die hole 30 correspond to the single permanent magnet of many magnetization shown in Fig. 1
Each face.
Illustrated mold 20, contains four magnetic body components and four nonmagnetic material parts.
Specifically, mould 20 has first and second non-magnetic part 21,22；First and second magnetic part 25,26；
3rd and the 4th magnetic part 27,28；3rd and the 4th non-magnetic part 31,32.
First and second non-magnetic part 21,22 has on the length direction of die hole 30 mutually relative first and the
Two sides；
First and second magnetic part 25,26 is set to clamp the first non-magnetic part 21, which defines mould
Has the part in the face on the length direction in hole 30；
3rd and the 4th magnetic part 27,28 is set to clamp the second non-magnetic part 22, which defines mould
Has the another part in the face on the length direction in hole 30；
3rd is oppositely arranged with the 4th non-magnetic part 31,32, on two faces relative to the length direction of die hole 30
Center section be defined.
First, second, third and the 4th magnetic part 25,26,27,28 be by JIS45C, SK6, SK7, SKD11, SKD12
Constituted etc. ferromagnetic carbon steel.
First, second, third and the 4th non-magnetic part 21,22,31,32 be nonmagnetic substance, such as：Stainless steel
(SUS304, SUS316) is constituted.Wherein, first and second non-magnetic part 21,22 has the thickness for limiting die hole 30
The ledge in the face in direction and amplitude direction, and since the ledge to die hole 30 outer expandable epitaxy part
Point.
As shown in FIG. 4,5,6, 7, first, second, third and the 4th magnetic part 25,26,27,28 with first and second
While the ledge of non-magnetic part 21,22 is in contact, also have, to the part in the face of the length direction of die hole 30
Untill the contact surface b that is in contact of the contact surface a that extends, the epitaxial part of first and second non-magnetic part 21,22 with contact
Face c, and the contact surface d and contact surface e that non-magnetic part 31,32 with third and fourth is in contact.
Fig. 4 illustrates the face of each contact on the first magnetic part 25, likewise, second, third and the 4th magnetic
Part 26,27,28 also has the face of same contact.
Fig. 5 is the stereogram illustrated to the concrete condition of magnetic part 25 shown in Fig. 4.It will be apparent that magnetic
Part 25 has contact surface a, contact surface b, the contact surface c being in contact with the first non-magnetic part 21, and non magnetic with the 3rd
Contact surface d and contact surface e that part 31 is in contact.
On other magnetic parts, i.e., second, third with the 4th magnetic part 26,27,28 on, with first, second,
Three and the 4th non-magnetic part 21,22,31,32 be in contact contact surface construction and Fig. 4 and Fig. 5 shown in the first magnetic part
25 is identical.First, second, third and the 4th magnetic part 25,26,27,28 with first, second, third and the 4th non magnetic portion
Part 21, between 22,31,32 device such as screw can be used to load and unload freely.
The present invention also provides a kind of many single Permanent Magnnet Manufacturing Approach of magnetization, in one embodiment, the method bag
Include following steps：
(1) to filling Magnaglo in the die hole of the above-mentioned single permanent magnet mould of many magnetization；
(2) the 3rd magnetic part and the 4th magnetic in described the first magnetic part and the second magnetic part and corresponding thereto
Property part between apply magnetic field, center section between described the first inwall and the second inwall is formed has the first magnetization side
To the first magnetized area；
(3) the second magnetic part and the 4th magnetic in described the first magnetic part and the 3rd magnetic part and corresponding thereto
Apply magnetic field between property part, the two side portions outside the center section between described the first inwall and the second inwall
The second magnetized area with second direction of magnetization is formed, second direction of magnetization is perpendicular to the first described direction of magnetization.
In a preferred embodiment, it is further comprising the steps of after described step (1)：
(1-1) carries out press-powder to described Magnaglo, forms powder compact.
(1-2) magnetizes to described powder compact, forms permanent magnet.
In practical application of the invention, it is possible to use the mould 20 of powder magnet shown in Fig. 4, carrying out factory length is
45mm, thickness is 12mm, and amplitude is 12mm, as shown in Figure 1, magnetizes single permanent magnet 10 more.
In manufacturing process, first, used as magnetic alloy, getting out percentage by weight is：Pr-Nd 30.0%, B 1.0%,
Dy 1.0%, Ho 1.0%, Al 1.2%, Co 1.5%, Cu 0.2%, Ga 0.2%, Nb 0.3%, it is Fe to be left part,
And by the alloy of inevitable impurity.
Secondly, the alloy is dissolved, after chilling, coarse crushing is carried out with hydrogen disintegrating machine.Then, it is crushed to airflow milling average straight
Footpath is 3~3.5 μm of powder, obtains Magnaglo.
Next, the Magnaglo that will be obtained is put into powder magnet as shown in Figure 4 mould 20, implement to be pressed in magnetic field
Type technique, obtains magnetic powder compact.
Afterwards, with 1130 DEG C of temperature, 2 hour sintering are carried out in a vacuum；After chilling, carried out in 910 DEG C of temperature
Timeliness.Then, 5 timeliness of hour are carried out in 500 DEG C of temperature, many magnetization as shown in Figure 1 is obtained single permanent
Magnet.
Below, it is specifically described on magnetic field medium-pressure type technique to above-mentioned referring to the drawings.
Reference picture 6, in die hole 30 of the powder magnet with mould 20, fills above-mentioned Magnaglo.Die hole 30 it is big
It is small identical with the size of magnetic powder compact after press-powder.In this embodiment, the length of die hole 30 is 55.6mm, and thickness is
14.8mm, amplitude is 14.8mm.The Magnaglo of filling 49.5g in the die hole 30 of above-mentioned size.
Using die hole 30, according to above-mentioned steps sintering magnetic powder compact is carried out, it is 45mm × 12mm that sintering obtains size
The single permanent magnet of many magnetization of × 12mm.
The direction of magnetization (magnetic anisotropy) of the part of centre 1/3 of many single permanent magnet length directions of magnetization is along length
Degree direction, the direction of magnetization at remaining two ends each 1/3 is through-thickness.
Specifically, as shown in fig. 6, being filled in the both sides configuration magnetic field of mould to clamp powder magnet mould 20
Put 40.The magnetic direction of the field generator for magnetic 40 of diagram is direction from left to right, that is, to being marked in symbol 43
Direction applies magnetic field.
Also, field generator for magnetic 40 has yoke.
First, allow mould 20 first and second magnetic part 25,26 and the 3rd and the 4th magnetic part 27,28 and magnetic field
The yoke of the electromagnet of generating means 40 is contacted, and applies magnetic field more than 20000 Gausses.This when, by the 3rd
Apply 1kg/cm with the mould that the 4th non-magnetic part 31,32 is constituted2Pressure carry out press-powder.Pressure now needs to keep
The degree for making the magnetic powder in mould 20 not overflow.
The situation of this pressure is oriented by the magnetic anisotropy direction of magnetic powder compact by magnetic direction.And,
One and second on magnetic part 25,26 and the 3rd and the 4th magnetic part 27,28, and with the length direction of die hole 30 up and down two
Individual main face is part contact.Therefore, the magnetic flux from first and second magnetic part 25,26 is to the center section of die hole 30
The Magnaglo filled concentrates flowing, and the center section of press-powder magnetic is magnetized in the longitudinal direction.Accordingly, magnetic
The two end portions of powder compact and center section are directed in the longitudinal direction, and the overall magnetic anisotropy direction of magnetic powder compact is
Length direction.
Next, temporarily mould is brought up, powder magnet mould 20 is rotated by 90 °, allows field generator for magnetic again
40 electromagnet yoke is contacted with powder magnet with mould 20.
Reference picture 7, illustrate after powder magnet mould 20 is rotated clockwise 90 degree with field generator for magnetic 40
Situation about being in contact.Fig. 7 is another it is clear that the 4th is in contact with the 3rd non-magnetic part 32,31 with field generator for magnetic 40
The second magnetic part of aspect 26 is contacted in side with the 4th magnetic part 28 with field generator for magnetic 40, and first and the 3rd magnetic
Part 25,27 is contacted in opposite side with field generator for magnetic 40.
End of second and first magnetic part 26,25 with one side of the interior press-powder magnetic filled of die hole 30 and thickness
Degree is in contact on direction.4th connects with the 3rd magnetic part 28,27 on the other end of press-powder magnetic and thickness direction
Touch.
In this case, field generator for magnetic 40 applies 2t/cm while magnetic field more than 20000 Gausses is sent2
Pressure.
Accordingly, magnetic flux is made up of permanent magnet, and it is between two pairs of magnetic parts that the end of die hole 30 is configured
Flowing, only has some magnetic fluxs of stream leakage in center section.Ensure that the magnetic anisotropy side of the Magnaglo of center section
Required degree is actually rotated to not reaching.As a result, not changing the magnetic anisotropy side on the length direction of center section
To, and the both sides of center section are clamped, the thickness being orthogonal by the magnetic anisotropy direction with length direction in a thickness direction
Direction is oriented, and form has magnetic anisotropy direction in a thickness direction.
Afterwards, press-powder magnetic is sintered, while processing and forming is implemented, and is magnetized according to the carrying out of follow-up method,
Obtain substantially being to be orthogonal (to hang down in the direction of magnetization of center section and the direction of magnetization with the both sides for clamping center section
The single permanent magnet of many magnetization directly).
After the single permanent magnet of many magnetization for obtaining various pieces are carried out with the measure of magnetic.
Here, such as Figure 14, the part of the magnet A~E of cutting completion, the result such as table 1 below of the magnetic of measure A~E parts
It is shown.
The magnetic measurement result of table 1
Visible according to upper table, there is magnetic anisotropy direction center section in the longitudinal direction, and two end portions are in thickness
There is magnetic anisotropy direction on direction.
Fig. 8 illustrates the method magnetized to first direction of magnetization.Between the magnetic pole of electromagnet, magnet length direction is clamped
Two ends, coil electricity stream sends magnetic field more than 25000 Gausses and magnetized.Electricity can also be replaced using solenoid coil
Magnetite is magnetized.Thus, the magnetization of first direction of magnetization is completed.
Fig. 9 illustrates the magnetization method of first side magnetized area 121.Similar with Fig. 8, the magnetic pole of electromagnet is clamped by magnetic
The side of the magnet 10 of change, electromagnet is electrified stream, sends magnetic field more than 25000 Gausses, magnetic flux is mainly directed towards from first
Flowed in the direction in the second main face.It is consequently formed first side magnetized area 121.
Figure 10 illustrates the magnetization method of second side magnetized area 122.Similar with Fig. 9, the magnetic pole of electromagnet is clamped by magnetic
The opposite side of the magnet 10 of change, electromagnet is electrified stream, sends magnetic field more than 25000 Gausses, makes magnetic flux from the second main face
Flowed to the direction in the first main face.It is consequently formed second side magnetized area 122.
The single permanent magnet of many magnetization as shown in Figure 3 is completed by the above method.
Presented below is the embodiment that actual motor is constituted using the single magnet for completing.
As shown in figure 11, it is using the configuration schematic diagram in motor by many single permanent magnets of magnetization of the invention.
Figure 12 show processing side when many single permanent magnets of magnetization of the invention to be used for electric rotating machine, generator
Method.Thus, the single permanent magnet of many magnetization of shoe can be made according to Figure 12.
Shown in Figure 13 be then will many single permanent magnet configurations of magnetization of the invention on electric rotating machine or generator
Situation.
While many single permanent magnets of magnetization of the invention are easily made into Halbach magnetic circuit, can also be answered
For motor, generator etc., can be by the power ascension of motor, generator etc. to 1.5 times.
Because many single permanent magnets of magnetization of the invention have multiple magnetic anisotropies, institute in single permanent magnet
The Haier shellfish being made up of the different multiple permanent magnet arrangements of the direction of magnetization can be constituted with by using less permanent magnet
Gram magnetic circuit.
The single permanent magnet of many magnetization, magnetic circuit, mould and its manufacture method of the invention are employed, because many magnetization are single
Individual permanent magnet has multiple magnetic anisotropies in single permanent magnet such that it is able to by using less permanent magnet
To constitute the Halbach magnetic circuit being made up of the different multiple permanent magnet arrangements of the direction of magnetization.Overcome and cut in the prior art
Magnet precision is poor, and combined magnet there may be a series of problem such as deviation.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
And it is nonrestrictive.
Claims (10)
- It is 1. a kind of to magnetize single permanent magnet more, it is characterised in thatIncluding the first main face second main face relative with the first main face and positioned at described the first main face and Some sides between second main face, described the first main face, have first between the second main face and some sides Magnetized area and the second magnetized area,The first described magnetized area has first direction of magnetization parallel with the first described main face and the second main face；The second described magnetized area is adjacent with the first described magnetized area, and with vertical with the first described direction of magnetization Second direction of magnetization.
- 2. it is according to claim 1 to magnetize single permanent magnet, it is characterised in that the first described magnetized area is located at more The first main face and the center section of the second main face length direction, the second described magnetized area include being located at institute respectively The first side magnetized area and second side magnetized area of the first magnetized area both sides stated.
- 3. it is according to claim 2 to magnetize single permanent magnet, it is characterised in that described first side magnetized area more Second direction of magnetization and second direction of magnetization of second side magnetized area there is antipolarity.
- 4. many single permanent magnets of magnetization according to claim 1, it is characterised in that many single permanent magnets of magnetization are Rectangle.
- 5. a kind of magnetic circuit, it is characterised in that the magnetic circuit be it is multiple as any one of Claims 1-4 by many magnetization singly The Halbach magnetic circuit of individual permanent magnet composition.
- It is 6. a kind of to magnetize single permanent magnet mould more, it is characterised in thatIncluding the first non-magnetic part, the second non-magnetic part, the 3rd non-magnetic part, the 4th non-magnetic part, the first magnetic Part, the second magnetic part, the 3rd magnetic part and the 4th magnetic part, and the die hole for being formed is enclosed by above-mentioned part,Described die hole has main with first of the single permanent magnet of many magnetization any one of Claims 1-4 Face and first inwall and the second inwall of the second main face matching, and it is connected to described the first inwall and the second inwall Between, and the first side wall that is matched with two sides of the described single permanent magnet of many magnetization and second sidewall,There is described the first side wall on the first described non-magnetic part；Described the first magnetic part and the second described magnetic part is divided into the both sides of the first described non-magnetic part, institute On the first magnetic part that the part of described the first side wall is located at described, the second described inwall is leaned on the first inwall stated The part of nearly described the first side wall is located on the second described magnetic part；There is described second sidewall on the second described non-magnetic part；Described the 3rd magnetic part and the 4th described magnetic part is divided into the both sides of the second described non-magnetic part, institute On the 3rd magnetic part that the part of described second sidewall is located at described, the second described inwall is leaned on the first inwall stated The part of nearly described second sidewall is located on the 4th described magnetic part；The 3rd described non-magnetic part is located between described the first magnetic part and the 3rd described magnetic part, described The center section of the first inwall is located on the 3rd non-magnetic part,The 4th described non-magnetic part is located between described the second magnetic part and the 4th described magnetic part, described The center section of the second inwall is located on the 4th non-magnetic part.
- 7. it is according to claim 6 to magnetize single permanent magnet mould, it is characterised in that many single permanent magnetics of magnetization more Swage tool is powder magnet mould, and die hole is rectangle.
- 8. it is a kind of to magnetize single Permanent Magnnet Manufacturing Approach, it is characterised in that the method is comprised the following steps more：(1) to filling Magnaglo in the die hole of the single permanent magnet mould of many magnetization described in claim 6；(2) in described the first magnetic part and the second magnetic part and the 3rd magnetic part corresponding thereto and the 4th magnetic portion Apply magnetic field between part, the center section between described the first inwall and the second inwall is formed with first direction of magnetization First magnetized area；(3) in described the first magnetic part and the 3rd magnetic part and the second magnetic part corresponding thereto and the 4th magnetic portion Apply magnetic field between part, the two side portions outside the center section between described the first inwall and the second inwall are formed to be had Second magnetized area of second direction of magnetization, second direction of magnetization is perpendicular to the first described direction of magnetization.
- 9. it is according to claim 8 to magnetize single Permanent Magnnet Manufacturing Approach, it is characterised in that in described step more (1) it is further comprising the steps of after：(1-1) carries out press-powder to described Magnaglo, forms powder compact.
- 10. it is according to claim 9 to magnetize single Permanent Magnnet Manufacturing Approach, it is characterised in that in described step more It is further comprising the steps of after (1-1)：(1-2) magnetizes to described powder compact, forms permanent magnet.
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| CN108568520A (en) * | 2017-09-07 | 2018-09-25 | 江西理工大学 | A kind of oriented moulding mold of anisotropic neodymium iron boron magnetic body |
| CN110572003A (en) * | 2019-09-20 | 2019-12-13 | 浙江大学 | Primary halbach permanent magnet type linear motor |
| CN110809729A (en) * | 2017-08-10 | 2020-02-18 | 浜松光子学株式会社 | Optical module and method for manufacturing optical module |
| CN112712987A (en) * | 2020-12-09 | 2021-04-27 | 宁波韵升股份有限公司 | Preparation method of Halbach magnet |
| CN114192777A (en) * | 2021-11-29 | 2022-03-18 | 九江市杰尼新材料有限公司 | Shaping module of cylindricality tantalum ingot |
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| CN1381851A (en) * | 2002-06-14 | 2002-11-27 | 钢铁研究总院 | Integrally sintered multi-texture rare-earth permanent magnet and its preparing process |
| CN202759306U (en) * | 2012-09-03 | 2013-02-27 | 蔡镇州 | Permanent magnet rotation motor |
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| CN1381851A (en) * | 2002-06-14 | 2002-11-27 | 钢铁研究总院 | Integrally sintered multi-texture rare-earth permanent magnet and its preparing process |
| CN202759306U (en) * | 2012-09-03 | 2013-02-27 | 蔡镇州 | Permanent magnet rotation motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110809729A (en) * | 2017-08-10 | 2020-02-18 | 浜松光子学株式会社 | Optical module and method for manufacturing optical module |
| US11789255B2 (en) | 2017-08-10 | 2023-10-17 | Hamamatsu Photonics K.K. | Optical module and method for manufacturing optical module |
| CN108568520A (en) * | 2017-09-07 | 2018-09-25 | 江西理工大学 | A kind of oriented moulding mold of anisotropic neodymium iron boron magnetic body |
| CN110572003A (en) * | 2019-09-20 | 2019-12-13 | 浙江大学 | Primary halbach permanent magnet type linear motor |
| CN112712987A (en) * | 2020-12-09 | 2021-04-27 | 宁波韵升股份有限公司 | Preparation method of Halbach magnet |
| CN114192777A (en) * | 2021-11-29 | 2022-03-18 | 九江市杰尼新材料有限公司 | Shaping module of cylindricality tantalum ingot |
| CN114192777B (en) * | 2021-11-29 | 2023-09-22 | 九江市杰尼新材料有限公司 | Forming module of cylindricality tantalum ingot |
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| CN106876086B (en) | 2020-02-21 |
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Effective date of registration: 20230404 Address after: Room 1602, Unit 1, Building 1, Meilu New Town, Fengchuan Avenue, Fengchuan Street, Tonglu County, Hangzhou City, Zhejiang Province Patentee after: Zhang Meng Address before: Room C1, Room 601-2, Zhu'an Building, No. 23, Masha Street, Shanghai Patentee before: SINO ENERGY INVESTMENT INTERNATIONAL HOLDING Co.,Ltd. |