CN101256898B - Method and apparatus for forming of radiation orientating round ring-shaped magnetic body - Google Patents
Method and apparatus for forming of radiation orientating round ring-shaped magnetic body Download PDFInfo
- Publication number
- CN101256898B CN101256898B CN2008100662694A CN200810066269A CN101256898B CN 101256898 B CN101256898 B CN 101256898B CN 2008100662694 A CN2008100662694 A CN 2008100662694A CN 200810066269 A CN200810066269 A CN 200810066269A CN 101256898 B CN101256898 B CN 101256898B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- magnetic pole
- magnetic field
- die cavity
- outer magnetic
- 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.)
- Active
Links
Images
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
- H01F41/0273—Imparting anisotropy
- H01F41/028—Radial 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
- B22F3/087—Compacting only using high energy impulses, e.g. magnetic field impulses
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The present invention discloses a molding method and apparatus for circular ring magnetic body in radiating way to resolve the technical problems which make magnetic powder uniform. Methods of the invention are that: orientation magnetic field is disconnected setting at circular ring magnetic body with 360 degrees in forming process, the forming process has relative rotation movement between orientation magnetic field and magnetic powder; the equipment of the invention is equipped with ring shaped molding chamber in the orientation magnetic field, and the orientation magnetic field is disconnected at circular ring magnetic body with 360 degrees, a moving structure with relative rotation is formed between one magnetic pole and another magnetic pole in orientation magnetic field, or between the ring shaped mold form and the orientation magnetic field, The present invention has more complete orientation to the magnetic powder compared with the present technology, because the orientation magnetic field at 360 degree is same with the magnetic field, the degree of orientation of radiating ring at different angle is identical, so the present invention can be used for producing sintered radiating ring magnetic body, bonding radiating ring magnetic body and bonding injection molding radiating ring magnetic body.
Description
Technical field
The present invention relates to a kind of manufacture method and equipment of radially oriented circular magnetic material, particularly along the forming method and the equipment of the radially oriented annular magnetic of radius or diametric(al).
Technical background
Be with a wide range of applications at machine field along radius or the radially oriented annular magnetic (being called for short the radiation ring) of diametric(al).The maximum technological difficulties of making the radiation ring are the method for alignment of moulding (or die mould) stage to magnetic.The method for alignment of magnetic material sector application at present mainly contains two kinds: first kind is the segmentation method for alignment, and this forming method is that annulus is merotomized, and each part is imported alignment magnetic field respectively be orientated.The maximum weak point of this method is that the degree of orientation is inhomogeneous, some position degree of orientation height, and some position degree of orientation is low.The degree of orientation is inhomogeneous not only can be had a strong impact on the whole magnetic property of radiation ring but also can cause the radiation ring opening because the shrinkage of different orientation degree position in sintering process is different, and these all make the magnetic property of radiation ring and rate of finished products reduce, and cost of manufacture increases.Second kind is to squeezing the magnetic field orientating method, this method is to adjust the sense of current of two coils up and down, make it between the coil cartridge, produce a homopolarity (the N utmost point or the S utmost point) magnetic field, make it form a radiation field by the magnetic conduction device again after this homopolar field being clamp-oned the inner chamber of radiation ring mould.This method is necessarily improved the uniformity of alignment magnetic field, maximum weak point is can reduce greatly when alignment magnetic field that the internal diameter of radiation ring hour obtains, thereby make magnetic orientation incomplete (also there is similar defective in first kind of method for alignment), the not only strength reduction but also the uniformity variation of alignment magnetic field when radiation ring height is higher, these all make the magnetic property of radiation ring and consistency degenerate.
Summary of the invention
The forming method and the equipment that the purpose of this invention is to provide a kind of radially oriented annular magnetic, the technical problem that solves is when making the radiation ring magnetic evenly is orientated but also also can obtains bigger orientation field when making the less and/or highly higher radiation ring of internal diameter, makes the magnetic property of radiation ring and consistency all obtain bigger raising.
The present invention is by the following technical solutions: a kind of forming method of radially oriented annular magnetic, magnetic is put into circular die cavity, carry out along radius or diametric(al) radially oriented by alignment magnetic field to the magnetic in the circular die cavity, alignment magnetic field is to be interrupted to distribute to be provided with on 360 ° of angles of annular magnetic in the forming process, between alignment magnetic field and the magnetic relative rotary motion is arranged in the described forming process; Relative rotary motion is that the internal magnetic pole of magnetic in the circular die cavity and alignment magnetic field is static, and the outer magnetic pole of alignment magnetic field rotates; Or outer magnetic pole is static, and magnetic and internal magnetic pole in the circular die cavity rotate; Or first outer magnetic pole of alignment magnetic field and second outer magnetic pole rotate around the magnetic in the circular die cavity, and the magnetic in the circular die cavity is static; Or first outer magnetic pole and second outer magnetic pole static, and the rotation of the magnetic in the circular die cavity.
The outer magnetic pole inner edge of the inventive method is fixedlyed connected with poly-magnetic head, and poly-magnetic head and outer magnetic pole rotate simultaneously, or outer magnetic pole inner edge and the flexible connection of poly-magnetic head, and poly-magnetic head rotates.
The number of the outer magnetic pole of the inventive method is one at least.
The number of first outer magnetic pole of the inventive method is one at least, and the number of second outer magnetic pole is one at least.
Internal magnetic pole of the inventive method and the alignment magnetic field between the outer magnetic pole, or the alignment magnetic field between first outer magnetic pole and second outer magnetic pole is the magnetic field or the irregular magnetic field of stationary magnetic field, regular variation.
Internal magnetic pole of the inventive method and the magnetic field between the outer magnetic pole, or the magnetic field between first outer magnetic pole and second outer magnetic pole is to be produced jointly by electromagnet generation, permanent magnet generation or electromagnet and permanent magnet.
A kind of former of radially oriented annular magnetic, in alignment magnetic field, be provided with annular die cavity, alignment magnetic field is to be interrupted to distribute to be provided with on 360 ° of angles of annular magnetic, between the magnetic pole and another magnetic pole in the alignment magnetic field, or form structure between annular die cavity and the alignment magnetic field with relative rotary motion, the structure of relative rotary motion is that the outer magnetic pole of alignment magnetic field is fixed on the frame of former, and the internal magnetic pole of circular die cavity and alignment magnetic field is connected rotary drive mechanism; Or the internal magnetic pole of circular die cavity and alignment magnetic field is fixed on the frame of former the outer magnetic pole of alignment magnetic field connection rotary drive mechanism; Or first outer magnetic pole of alignment magnetic field is connected rotary drive mechanism with second outer magnetic pole, and circular die cavity is fixed on the frame of former; Or first outer magnetic pole and second outer magnetic pole be fixed on the frame of former, and circular die cavity connects rotary drive mechanism.
Fixedly connected or be connected with poly-magnetic head on the outer magnetic pole inner edge of present device.
The number of the outer magnetic pole of present device is one at least.
The number of first outer magnetic pole of present device is one at least, and the number of second outer magnetic pole is one at least.
The present invention compared with prior art, alignment magnetic field is interrupted the setting that distributes in the employing forming process on 360 ° of angles of annular magnetic, between alignment magnetic field and the magnetic relative rotary motion is arranged in the forming process, because the alignment magnetic field of 360 ° of directions is same magnetic field, so it is more complete to the orientation of magnetic, the degree of orientation of radiation ring different angles is very consistent, both can be used for preparing sintering radiation ring magnet, also can be used for preparing bonding radiation ring magnet and injection moulding radiation ring magnet.
Description of drawings
Fig. 1 is embodiment of the invention internal magnetic pole-outer magnetic pole formula () alignment magnetic field schematic diagram.
Fig. 2 is embodiment of the invention outer magnetic pole-outer magnetic pole formula alignment magnetic field schematic diagram.
Fig. 3 is embodiment of the invention internal magnetic pole-outer magnetic pole formula (two) alignment magnetic field schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.Sequence number in the accompanying drawing: 1. internal magnetic pole (when selecting the big permeability magnetic material of hardness for use, can doublely do core rod); 2. die cavity; 3. there is not the magnetic mould; 4. outer magnetic pole gathers magnetic head; 5. outer magnetic pole; 6. magnetic conduction core (when selecting the big permeability magnetic material of hardness for use, can doublely do core rod); 7. first outer magnetic pole; 8. second outer magnetic pole.
Method of the present invention is achieved in that alignment magnetic field has been changed over discontinuously arranged (can adopt internal magnetic pole-outer magnetic pole formula alignment magnetic field or outer magnetic pole-outer magnetic pole formula alignment magnetic field during enforcement) by 360 ° of continuous distribution that generally adopt at present (or approximate 360 ° of continuous distribution), be that alignment magnetic field is interruption distribution setting in the moulding process on 360 ° of angles of annular magnet, magnetic in the forming process has been become by relative static (or being similar to static relatively) of generally adopting at present with the relative status in magnetic field relative rotary motion.Equipment internal magnetic pole of the present invention-outer magnetic pole formula alignment magnetic field makes independent or discrete poly-magnetic head by the outer magnetic conduction device with radiation ring alignment magnetic field into by traditional continuous circular ring type (or approximate continuous circular ring type), obtains bigger alignment magnetic field thereby make to be concentrated by the magnetic field of radiation ring die cavity.Because the alignment magnetic field that the present invention adopts is discontinuously arranged, for the magnetic in the mould is orientated in 360 ° of directions, the present invention has changed over relative rotary motion with the relative status in magnetic field by relative static (or approximate static relatively) of generally adopting at present with magnetic.If make magnetic static relatively, then discontinuously arranged alignment magnetic field just can be finished 360 ° of orientations to magnetic when the rotation of radiation ring die cavity is more than 360 °; If the discontinuously arranged alignment magnetic field that allows the present invention adopt is static relatively, also can finish 360 ° of orientations when then allowing magnetic in the die cavity in magnetic field, rotate more than 360 ° to magnetic; If the discontinuously arranged alignment magnetic field that the magnetic in the die cavity and the present invention adopt rotates simultaneously, then also can finish 360 ° of orientations to magnetic as long as the motion in magnetic and magnetic field is asynchronous.The present invention is because the magnetic field of adopting is higher, so more complete to the orientation of magnetic; Because the alignment magnetic field of 360 ° of directions is same magnetic field, so the degree of orientation of radiation ring different angles is very consistent.So the present invention has solved preferably in the production of present radiation ring that ubiquitous alignment magnetic field is on the low side to cause the magnetic orientation not exclusively and Distribution of Magnetic Field is inhomogeneous causes technical barriers such as product magnetic property consistency is relatively poor.
Embodiment 1: make the radiation ring with internal magnetic pole-outer magnetic pole formula alignment magnetic field.
As shown in Figure 1, after the two poles of the earth (the N utmost point and the S utmost point) in the magnetic field that will be produced by electromagnet or permanent magnet import internal magnetic pole 1 and outer magnetic pole 5 respectively by certain magnetic conduction device, will between internal magnetic pole 1 and the poly-magnetic head 4 of outer magnetic pole, form a high-intensity magnetic field.If be filled with magnetic in the die cavity 2 this moment, the magnetic that then is in this magnetic field will fully be magnetized and be orientated.If the poly-magnetic head 4 of outer magnetic pole is fixed on the outer magnetic pole 5, just can realize all magnetization of magnetic and radially oriented in the die cavity 2 with driven by motor outer magnetic pole 5 high speed rotating.Magnetic in the die cavity 2 in magnetization and orientation, by the briquetting process of prior art, is applied a pressure that progressively increases and just can finish compression moulding to radiation ring base substrate.If outer magnetic pole 5 and the poly-magnetic head 4 of outer magnetic pole are dynamically connected, also can reach identical purpose with poly-magnetic head 4 rotations of driven by motor outer magnetic pole.Finishing only needs to import opposite with the alignment magnetic field direction, a big or small suitable opposing magnetic field after the moulding and just can realize demagnetization to radiation ring base substrate between internal magnetic pole 1 and outer magnetic pole 5.Radiation ring blank has just been made in sintering and heat treatment that the radiation ring base substrate of moulding according to the method described above carries out generally adopting at present, just finished making through fine finishining again the radiation ring.In the present embodiment if not allowing poly-magnetic head 4 rotations of outer magnetic pole 5 and outer magnetic pole but allow the magnetic rotation in mould 3 and the die cavity 2 also can reach the purpose radially oriented to magnetic.In the present embodiment, we can only adopt a slice outer magnetic pole to gather magnetic head 4, also can adopt multi-disc to gather magnetic head 4.In addition, the magnetic field that imports between internal magnetic pole 1 and the outer magnetic pole 5 can be the stationary magnetic field, also can be the magnetic field (as pulsed magnetic field) of regular variation, can also be irregular magnetic field.
Embodiment 2: make the radiation ring with outer magnetic pole-outer magnetic pole formula alignment magnetic field
As shown in Figure 2, after the two poles of the earth (the N utmost point and the S utmost point) in the magnetic field that will be produced by electromagnet or permanent magnet import first outer magnetic pole 7 and second outer magnetic pole 8 respectively by certain magnetic conduction device, will be between the magnetic conduction core 6 and first outer magnetic pole 7, form two high-intensity magnetic fields simultaneously between magnetic conduction core 6 and second outer magnetic pole 8.If be filled with magnetic in the die cavity 2 this moment, the magnetic that then is in these two magnetic fields all will fully be magnetized and be orientated.With driven by motor first outer magnetic pole 7 and second outer magnetic pole 8 simultaneously high speed rotating just can realize magnetization and orientation to whole magnetics in the die cavity 2.Magnetic in the die cavity 2 in magnetization and orientation, by the briquetting process of prior art, is applied a pressure that progressively increases and just can finish compression moulding to radiation ring base substrate.Finishing only needs to import a magnetic field that progressively reduces after the moulding and just can realize demagnetization to radiation ring base substrate between first outer magnetic pole 7 and second outer magnetic pole 8.Radiation ring blank has just been made in sintering and heat treatment that the radiation ring base substrate of moulding according to the method described above carries out generally adopting at present, just finished making through following process again the radiation ring.In the present embodiment if not allowing first outer magnetic pole 7 and the rotation of second outer magnetic pole 8 but allow the magnetic rotation in the die cavity 2 also can reach the purpose radially oriented to magnetic.In the present embodiment, we have only used a pair of outer magnetic pole (first outer magnetic pole 7 and second outer magnetic pole 8), also can adopt many to outer magnetic pole even odd number outer magnetic pole (for example three outer magnetic poles, a N utmost point, two S utmost points etc.).The magnetic field that imports between first outer magnetic pole 7 and second outer magnetic pole 8 can be the stationary magnetic field, also can be the magnetic field (as pulsed magnetic field) of regular variation, can also be irregular magnetic field.
Embodiment 3: the another kind of method of making the radiation ring of internal magnetic pole-outer magnetic pole formula alignment magnetic field
As shown in Figure 3, after the two poles of the earth (the N utmost point and the S utmost point) in the magnetic field that will be produced by electromagnet or permanent magnet import internal magnetic pole 1 and outer magnetic pole 5 respectively by certain magnetic conduction device, will between internal magnetic pole 1 and the poly-magnetic head 4 of outer magnetic pole, form a high-intensity magnetic field.If be filled with magnetic in the die cavity 2 this moment, the magnetic that then is in this magnetic field will fully be magnetized and be orientated.If (1) allow magnetic and internal magnetic pole 1 in no magnetic mould 3, the die cavity 2 be fixed on the frame of former, static relatively, allow outer magnetic pole 5 be connected rotary drive mechanism with poly-magnetic head 4, magnetic and internal magnetic pole 1 in no magnetic mould 3, die cavity 2 rotate; Perhaps (2) allow outer magnetic pole 5 and poly-magnetic head 4 be fixed on the frame of former, static relatively, allow the magnetic in no magnetic mould 3, the die cavity 2 be connected rotary drive mechanism, rotate, just can realize all magnetization of magnetics and radially oriented in the die cavity 2 with internal magnetic pole 1.Magnetic in the die cavity 2 in magnetization and orientation, by the briquetting process of prior art, is applied a pressure that progressively increases and just can finish compression moulding to radiation ring base substrate.In the present embodiment, we can only adopt one group of outer magnetic pole 5 and poly-magnetic head 4, but also can adopt many groups simultaneously.In addition, the magnetic field that imports between internal magnetic pole 1 and the outer magnetic pole 5 can be the stationary magnetic field, also can be the magnetic field (as pulsed magnetic field) of regular variation, can also be irregular magnetic field.
Claims (8)
1. the forming method of a radially oriented annular magnetic, it is characterized in that: alignment magnetic field is to be interrupted to distribute to be provided with on 360 ° of angles of circular die cavity (2) in the forming process, relative rotary motion more than 360 ° is arranged between alignment magnetic field and the magnetic in the forming process, detailed process is as follows: magnetic is put into circular die cavity (2), the two poles of the earth N utmost point in the magnetic field that will produce by electromagnet or permanent magnet and the S utmost point imports alignment magnetic field respectively by the magnetic conduction device internal magnetic pole (1) and outer magnetic pole (5), between internal magnetic pole (1) and the poly-magnetic head (4) of outer magnetic pole, form a high-intensity magnetic field, internal magnetic pole (1) and die cavity (2) is fixing, when the poly-magnetic head (4) of outer magnetic pole and outer magnetic pole (5) when being dynamically connected, with poly-magnetic head (4) rotation of driven by motor outer magnetic pole, when the poly-magnetic head (4) of outer magnetic pole and outer magnetic pole (5) when fixedlying connected, rotate simultaneously with poly-magnetic head (4) of driven by motor outer magnetic pole and outer magnetic pole (5), simultaneously, apply a pressure that progressively increases for the magnetic in the die cavity (2); Perhaps, poly-magnetic head (4) of outer magnetic pole and outer magnetic pole (5) is fixing, with driven by motor internal magnetic pole (1) and die cavity (2) and the rotation of magnetic wherein, simultaneously, apply a pressure that progressively increases for the magnetic in the die cavity (2), just can realize all radially oriented and moulding of magnetic in the die cavity (2), finish between internal magnetic pole (1) and outer magnetic pole (5), import after the moulding one opposite with the alignment magnetic field direction, demagnetize to radiation ring base substrate in the suitable opposing magnetic field of size, the radiation ring base substrate of moulding is according to the method described above carried out sintering and radiation ring blank is made in heat treatment, carry out fine finishining again.
2. the forming method of radially oriented annular magnetic according to claim 1, it is characterized in that: the number of described outer magnetic pole (5) is at least one.
3. the forming method of radially oriented annular magnetic according to claim 1, it is characterized in that: the alignment magnetic field between described internal magnetic pole (1) and the outer magnetic pole (5) is the magnetic field or the irregular magnetic field of stationary magnetic field, regular variation.
4. the forming method of a radially oriented annular magnetic, it is characterized in that: alignment magnetic field is to be interrupted to distribute to be provided with on 360 ° of angles of circular die cavity (2) in the forming process, and the relative rotary motion more than 360 ° is arranged between alignment magnetic field and the magnetic in the forming process; Detailed process is as follows: magnetic is put into circular die cavity (2), the two poles of the earth N utmost point in the magnetic field that will produce by electromagnet or permanent magnet and the S utmost point imports alignment magnetic field respectively by the magnetic conduction device first outer magnetic pole (7) and second outer magnetic pole (8), between magnetic conduction core (6) and first outer magnetic pole (7), form two high-intensity magnetic fields between magnetic conduction core (6) and second outer magnetic pole (8), make circular die cavity (2) static, first outer magnetic pole (7) of alignment magnetic field and second outer magnetic pole (8) rotate around circular die cavity (2) and magnetic wherein, apply a pressure that progressively increases for simultaneously the magnetic in the die cavity (2); Perhaps, make first outer magnetic pole (7) and second outer magnetic pole (8) static, circular die cavity (2) and magnetic wherein rotate, apply a pressure that progressively increases for simultaneously the magnetic in the die cavity (2), just can realize all radially oriented and moulding of magnetic in the die cavity (2), finish and between first outer magnetic pole (7) and second outer magnetic pole (8), import a magnetic field that progressively reduces after the moulding and demagnetize to base substrate, the radiation ring base substrate of moulding is according to the method described above carried out sintering and radiation ring blank is made in heat treatment, carry out fine finishining again.
5. the forming method of radially oriented annular magnetic according to claim 4, it is characterized in that: the number of described first outer magnetic pole (7) is one at least, the number of second outer magnetic pole (8) is one at least.
6. the forming method of radially oriented annular magnetic according to claim 4, it is characterized in that: the alignment magnetic field between described first outer magnetic pole (7) and second outer magnetic pole (8) is the magnetic field or the irregular magnetic field of stationary magnetic field, regular variation.
7. used former of forming method as claim 1 or 4 described radially oriented annular magnetics, alignment magnetic field is to be interrupted to distribute to be provided with on 360 ° of angles of circular die cavity (2), form structure between the outer magnetic pole of circular die cavity (2) and alignment magnetic field with the relative rotary motion more than 360 °, it is characterized in that: between poly-magnetic head (4) of circular die cavity (2) and internal magnetic pole (1) and outer magnetic pole and the outer magnetic pole (5), or form structure between circular die cavity (2) and magnetic conduction core (6) and first outer magnetic pole (7) and second outer magnetic pole (8) with the relative rotary motion more than 360 °, the structure of relative rotary motion is that the outer magnetic pole (5) of alignment magnetic field is fixed on the frame of former, the internal magnetic pole (1) of circular die cavity (2) and alignment magnetic field is connected rotary drive mechanism, or the internal magnetic pole (1) of circular die cavity (2) and alignment magnetic field is fixed on the frame of former, the outer magnetic pole of alignment magnetic field (5) connects rotary drive mechanism, the fixedly connected or poly-magnetic head (4) of the outer magnetic pole that has been dynamically connected on described outer magnetic pole (5) inner edge; Or first outer magnetic pole (7) of alignment magnetic field is connected rotary drive mechanism with second outer magnetic pole (8), and circular die cavity (2) is fixed on the frame of former; Or first outer magnetic pole (7) and second outer magnetic pole (8) be fixed on the frame of former, circular die cavity (2) connects rotary drive mechanism.
8. the former of radially oriented annular magnetic according to claim 7, it is characterized in that: the number of described outer magnetic pole (5) is one at least; The number of perhaps described first outer magnetic pole (7) is one at least, and the number of second outer magnetic pole (8) is one at least.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100662694A CN101256898B (en) | 2008-03-27 | 2008-03-27 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
| US12/378,230 US20090246063A1 (en) | 2008-03-27 | 2009-02-11 | Method and apparatus for producing radially oriented ring magnet |
| JP2009079619A JP2009239287A (en) | 2008-03-27 | 2009-03-27 | Method and apparatus for manufacturing radially oriented annular magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100662694A CN101256898B (en) | 2008-03-27 | 2008-03-27 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101256898A CN101256898A (en) | 2008-09-03 |
| CN101256898B true CN101256898B (en) | 2011-06-29 |
Family
ID=39891593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100662694A Active CN101256898B (en) | 2008-03-27 | 2008-03-27 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090246063A1 (en) |
| JP (1) | JP2009239287A (en) |
| CN (1) | CN101256898B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347261A (en) * | 2014-10-10 | 2015-02-11 | 宁波金鸡强磁股份有限公司 | Orientation device and orientation method for radiation ring magnet |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719417B (en) * | 2009-10-19 | 2012-10-03 | 金浦威恩磁业(上海)有限公司 | Radial orienting method and device of ring-shaped anisotropic magnet |
| CN102456463B (en) * | 2010-10-20 | 2016-08-10 | 北京中科三环高技术股份有限公司 | A kind of method preparing multipole orientation annular magnetic and the device of enforcement the method |
| CN102360915B (en) * | 2011-08-10 | 2013-03-13 | 周大鹏 | Equipment for manufacturing magnet with radialized magnetic aligning |
| CN102360697B (en) * | 2011-08-10 | 2013-05-29 | 周大鹏 | Annular magnet with radial magnetic orientation |
| CN102360914B (en) * | 2011-08-10 | 2013-06-05 | 周大鹏 | Method for manufacturing annular magnet with radial magnetic orientation |
| CN103310970B (en) * | 2012-03-09 | 2016-01-06 | 江苏东瑞磁材科技有限公司 | The preparation method of permanent-magnetic ring of radial orientation and radial orientation device thereof |
| CN102543353A (en) * | 2012-03-09 | 2012-07-04 | 上海平野磁气有限公司 | Method and device for manufacturing magnetic radiation ring |
| CN103123864B (en) * | 2013-02-26 | 2016-01-06 | 江苏东瑞磁材科技有限公司 | A kind of method and manufacturing installation thereof preparing radial permanent magnetic ring |
| CN103123863B (en) * | 2013-02-26 | 2016-06-01 | 江苏东瑞磁材科技有限公司 | The preparation facilities of a kind of permanent-magnetic ring of radial orientation |
| CN104715916B (en) * | 2013-12-11 | 2018-01-12 | 北京中科三环高技术股份有限公司 | A kind of radially oriented magnetic ring former and method |
| CN104505205B (en) * | 2014-11-21 | 2017-02-22 | 宁波金鸡强磁股份有限公司 | Rare earth permanent magnetic material molding equipment and molding method |
| CN106373693A (en) * | 2016-11-15 | 2017-02-01 | 彭晓领 | Method for preparing complete orientation soft magnetic composite material |
| CN106971838A (en) * | 2017-04-28 | 2017-07-21 | 董永安 | A kind of method and device of radially oriented annulus |
| CN108962524B (en) * | 2018-06-08 | 2020-11-17 | 深圳市瑞达美磁业有限公司 | Composition for sintering oriented magnet permeation treatment, application and method |
| CN108922764B (en) * | 2018-06-08 | 2021-06-04 | 深圳市瑞达美磁业有限公司 | Processing method of radiation orientation sintering magnetic ring |
| CN108922763B (en) * | 2018-06-08 | 2021-01-05 | 深圳市瑞达美磁业有限公司 | Method for improving magnetic property of sintered magnet and magnet prepared by method |
| CN108962578B (en) * | 2018-06-08 | 2020-10-09 | 深圳市瑞达美磁业有限公司 | Method for repairing internal defects of sintered oriented magnet and repaired magnet |
| CN109435017A (en) * | 2018-11-27 | 2019-03-08 | 闫溪 | A kind of permanent-magnet ferrite hydraulic press magnetic field optimization structure |
| CN113579230B (en) * | 2021-06-29 | 2023-12-22 | 台州市铭冠机械有限公司 | Double-layer magnetic powder uniform filling and pre-pressing integrated device |
| CN113977856B (en) * | 2021-10-22 | 2024-01-05 | 杭州千石科技有限公司 | Electromagnetic field radiation orientation device of annular injection molding magnet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685451A (en) * | 2002-08-29 | 2005-10-19 | 信越化学工业株式会社 | Radial anisotropic ring magnet and manufacturing method of the same |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147819A (en) * | 1987-12-03 | 1989-06-09 | Hitachi Metals Ltd | Method and device for molding anisotropic ring-shaped permanent magnet |
| JPH0339415A (en) * | 1989-07-06 | 1991-02-20 | Mitsubishi Materials Corp | Heat treatment method in magnetic field giving ring-like magnet alloy radial magnetic anisotropy |
| JPH07211567A (en) * | 1994-01-11 | 1995-08-11 | Mitsubishi Materials Corp | Method of molding cylindrical radial anisotropic bonded magnet |
| JP2002030304A (en) * | 2000-07-11 | 2002-01-31 | Yoshihiro Okuda | Method and apparatus for forming radial magnetic field |
| JP4133686B2 (en) * | 2002-08-29 | 2008-08-13 | 信越化学工業株式会社 | Radial anisotropic ring magnet and manufacturing method thereof |
| EP1713098B1 (en) * | 2004-06-22 | 2015-12-23 | Shin-Etsu Chemical Co., Ltd. | Radial anisotropic cylindrical sintered magnet and permanent magnet motor |
| WO2005124800A1 (en) * | 2004-06-22 | 2005-12-29 | Shin-Etsu Chemical Co., Ltd. | Methods of producing radial anisotropic cylinder sintered magnet and permanent magnet motor-use cylinder multi-pole magnet |
| JP4315340B2 (en) * | 2004-06-30 | 2009-08-19 | Ｔｄｋ株式会社 | Magnetic field forming method, radial anisotropic ring magnet manufacturing method, magnetic field forming apparatus and radial anisotropic ring magnet |
| JP2006019386A (en) * | 2004-06-30 | 2006-01-19 | Tdk Corp | Compacting method in magnetic field, method for manufacturing radial anisotropic ring magnet, and compacting apparatus in magnetic field |
| CN101103422B (en) * | 2005-12-13 | 2011-03-30 | 信越化学工业株式会社 | Process for producing radially anisotropic magnet |
-
2008
- 2008-03-27 CN CN2008100662694A patent/CN101256898B/en active Active
-
2009
- 2009-02-11 US US12/378,230 patent/US20090246063A1/en not_active Abandoned
- 2009-03-27 JP JP2009079619A patent/JP2009239287A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685451A (en) * | 2002-08-29 | 2005-10-19 | 信越化学工业株式会社 | Radial anisotropic ring magnet and manufacturing method of the same |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平2-140907A 1990.05.30 |
| JP特开平7-220924A 1995.08.18 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347261A (en) * | 2014-10-10 | 2015-02-11 | 宁波金鸡强磁股份有限公司 | Orientation device and orientation method for radiation ring magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009239287A (en) | 2009-10-15 |
| US20090246063A1 (en) | 2009-10-01 |
| CN101256898A (en) | 2008-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101256898B (en) | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body | |
| CN101162646B (en) | Forming method of annular magnetic body orientating along the direction of radius or diameter radiation | |
| CN103310970B (en) | The preparation method of permanent-magnetic ring of radial orientation and radial orientation device thereof | |
| CN102822916B (en) | Method for producing anisotropic bonded magnet, and device for producing same | |
| JPS61112310A (en) | Manufacture of permanent magnet | |
| CN109605733B (en) | Magnetic material 3D printing apparatus | |
| CN106057462A (en) | Shifting magnetic field type method and device for pressing radiant orientation circular ring | |
| CN103903850A (en) | Anisotropic magnet radial orienting device | |
| CN102360914B (en) | Method for manufacturing annular magnet with radial magnetic orientation | |
| CN104505990A (en) | Preparation method for sintering permanent magnetic ferrite ring of brushless motor | |
| CN101964236B (en) | Manufacturing method of multipolar magnet ring | |
| CN101118807B (en) | Magnetic aligning device of aeolotropism adhesive bonding or sintered multipolar annular magnetic body | |
| CN107978443A (en) | Elevating type radiation oriented moulding method and mechanism | |
| CN110211796A (en) | Solid magnet of radial anisotropic multipole and preparation method and apparatus thereof | |
| CN103128286A (en) | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof | |
| CN108615596A (en) | A kind of abnormity permanent magnet and preparation method thereof, the equipment for preparing special-shaped permanent magnet | |
| CN207517512U (en) | Elevating type radiation oriented moulding mechanism | |
| CN113977856B (en) | Electromagnetic field radiation orientation device of annular injection molding magnet | |
| JP4087609B2 (en) | Mold for molding plastic polar magnet, plastic polar magnet manufacturing apparatus and method using the same | |
| CN114023524B (en) | Thin-wall inner circle oriented multi-pole magnetic ring and manufacturing method thereof | |
| CN203826198U (en) | Radial orientation device of anisotropic magnets | |
| CN203140772U (en) | Anisotropic sintering rare earth permanent magnetic material radial orientation device | |
| CN110165847A (en) | The production method of the solid magnet of radial anisotropic multipole of different in width waveform | |
| CN104715916B (en) | A kind of radially oriented magnetic ring former and method | |
| CN103123864B (en) | A kind of method and manufacturing installation thereof preparing radial permanent magnetic ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CITY RUIDAMEI TECHNOLOGY CO., LTD. APPLI Free format text: FORMER OWNER: SHENZHEN CITY TIANYINGDE TECHNOLOGY CO., LTD. APPLICANT ADDRESS Effective date: 20081128 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081128 Address after: Nanshan Software Park East Tower No. 10128 Nanshan District Shennan Road Shenzhen city Guangdong province 1305 post encoding: 518060 Applicant after: Shenzhen Ruida Technology Co., Ltd. Address before: Room 2009, Times Square, 4068 Yitian Road, Futian District, Guangdong, Shenzhen 518026, China Applicant before: Shenzhen Tianyingde Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CITY RUIDAMEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENZHEN CITY TIANYINGDE TECHNOLOGY CO., LTD. Effective date: 20081128 |
|
| ASS | Succession or assignment of patent right |
Owner name: CHENG WENHAO Free format text: FORMER OWNER: SHENZHEN RUIDAMEI TECHNOLOGY CO.,LTD. Effective date: 20100426 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518060 1305, EAST TOWER, NANSHAN SOFTWARE PARK, NO.10128, SHENNAN AVENUE, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518053 9C, TOWER 4, BUILDING 1, SHAHE CENTURY VILLAGE, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20100426 Address after: 518053, 4 9C, 1 village, century village, Shenzhen, Guangdong, Nanshan District, Shahe Applicant after: Cheng Wenhao Address before: Nanshan Software Park East Tower No. 10128 Nanshan District Shennan Road Shenzhen city Guangdong province 518060 1305 Applicant before: Shenzhen Ruida Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN RUIDAMEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHENG WENHAO Effective date: 20120711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518053 SHENZHEN, GUANGDONG PROVINCE TO: 518060 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120711 Address after: Nanshan Software Park East Tower No. 10128 Nanshan District Shennan Road Shenzhen city Guangdong province 518060 1305 Patentee after: Shenzhen Ruida Technology Co., Ltd. Address before: 518053, 4 9C, 1 village, century village, Shenzhen, Guangdong, Nanshan District, Shahe Patentee before: Cheng Wenhao |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN RUIDAMEI MAGNETIC INDUSTRY CO., LTD. Free format text: FORMER NAME: SHENZHEN RUIDAMEI TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518106 Gongming office, Guangming District, Guangdong, Shenzhen Province, building two, building B2, 19, Yau Ma Wai Industrial Park, Shek Wai community, Shek Wai Patentee after: Shenzhen Ruida magnetic Co., Ltd. Address before: Nanshan Software Park East Tower No. 10128 Nanshan District Shennan Road Shenzhen city Guangdong province 518060 1305 Patentee before: Shenzhen Ruida Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method and apparatus for forming of radiation orientating round ring-shaped magnetic body Effective date of registration: 20140630 Granted publication date: 20110629 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Ruida magnetic Co., Ltd. Registration number: 2014990000525 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |