CN113977856B - Electromagnetic field radiation orientation device of annular injection molding magnet - Google Patents
Electromagnetic field radiation orientation device of annular injection molding magnet Download PDFInfo
- Publication number
- CN113977856B CN113977856B CN202111233033.7A CN202111233033A CN113977856B CN 113977856 B CN113977856 B CN 113977856B CN 202111233033 A CN202111233033 A CN 202111233033A CN 113977856 B CN113977856 B CN 113977856B
- Authority
- CN
- China
- Prior art keywords
- plate
- magnetic conduction
- magnetic
- die plate
- fixed
- 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
- 238000001746 injection moulding Methods 0.000 title claims abstract description 36
- 230000005855 radiation Effects 0.000 title claims abstract description 32
- 230000005672 electromagnetic field Effects 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000000052 comparative effect Effects 0.000 description 15
- 238000012360 testing method Methods 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 11
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- PRQMIVBGRIUJHV-UHFFFAOYSA-N [N].[Fe].[Sm] Chemical compound [N].[Fe].[Sm] PRQMIVBGRIUJHV-UHFFFAOYSA-N 0.000 description 6
- 229910001172 neodymium magnet Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
Abstract
The invention discloses an electromagnetic field radiation orientation device of a circular injection molding magnet, which comprises an upper orientation coil, a lower orientation coil and a die body, wherein tie bars are arranged at four corner positions outside the die body, the upper orientation coil and the lower orientation coil are positioned between the four tie bars, the die body comprises a fixed die plate, a support plate and a push plate, a magnetic conduction core rod and a movable die plate are arranged on the support plate, the push plate is arranged above the movable die plate and can move up and down relative to the movable die plate, the magnetic conduction core rod passes through the movable die plate and the push plate and is in sliding fit with the push plate, the fixed die plate is positioned above the movable die plate, a magnetic conduction ring is fixed in the fixed die plate, when the fixed die plate and the movable die plate are clamped, the upper end part of the magnetic conduction core rod stretches into the magnetic conduction ring, a die cavity is formed by a gap between the magnetic conduction ring and the magnetic conduction core rod, an outer magnetic conduction plate surrounding the magnetic conduction ring is arranged at the position outside the fixed die plate corresponding to the magnetic conduction ring, and the tie bars are connected through magnetic conduction leads. The invention has convenient use and can improve the radiation orientation strength and uniformity of the electromagnetic field.
Description
Technical Field
The invention relates to the technical field of injection molding magnetic ring radiation orientation, in particular to an electromagnetic field radiation orientation device of a circular injection molding magnet.
Background
The radiation orientation circular injection molding magnet has wide application prospect in the field of motors, and the biggest technical problem in the injection molding preparation process of the circular injection molding magnet is radiation orientation of molten materials.
In the prior art, different technical means are adopted for achieving the purpose of radiation orientation of the annular injection molding magnet. The first is a magnetic field opposite-impact method, which adopts the principle of magnetic pole like repulsion to generate a magnetic field required by radiation orientation, and the orientation mode ensures that the orientation effect of the magnet formed in the circumferential direction is relatively uniform. The method has the defects that when the inner diameter of the circular injection molding magnet is smaller, the strength of an orientation magnetic field is greatly reduced, so that the orientation of a molten material is incomplete, and the performance of the material cannot be effectively exerted; when the height of the annular injection molding magnet is higher, the strength and uniformity of the orientation magnetic field cannot be effectively ensured, and the performance of the product can be reduced. Meanwhile, the method has higher requirements on the position of the circular injection molding magnet die cavity in the die, and the orientation effect of the poor product selected from the position is poor; the second is a rotating magnetic field method, the orientation mode adopts the simultaneous orientation of the inner magnetic pole and the outer magnetic pole, the outer magnetic pole rotates at a high speed in the circumferential direction, and further the problem of uneven orientation of the magnet in the circumferential direction is solved, but the strength and consistency of the orientation magnetic field in the vertical direction are not fundamentally ensured. The circular injection molding magnet is subjected to radiation orientation in a one-die one-out mode, so that the working efficiency cannot be effectively improved, and the requirement of mass production is not met.
Disclosure of Invention
The invention aims to solve the problems of the radiation taking method of the annular injection molding magnet in the prior art, and provides the electromagnetic field radiation orientation device of the annular injection molding magnet, which has the advantages of simple structure, convenience in use and capability of improving the radiation orientation strength and uniformity of the electromagnetic field.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the invention discloses an electromagnetic field radiation orientation device of a circular injection molding magnet, which comprises an upper orientation coil, a lower orientation coil and a die body, wherein tie bars are arranged at four corner positions outside the die body, the upper orientation coil and the lower orientation coil are respectively positioned among the four tie bars, the die body comprises a fixed die plate, a supporting plate and a pushing plate, a magnetic conducting core rod and a movable die plate are fixed on the supporting plate, the pushing plate is arranged above the movable die plate and can move up and down relative to the movable die plate, the magnetic conducting core rod passes through the movable die plate, the pushing plate and is in sliding fit with the pushing plate, the fixed die plate is positioned above the movable die plate, a magnetic conducting ring is fixed in the fixed die plate, when the fixed die plate and the movable die plate are clamped, the upper end part of the magnetic conducting core rod stretches into the magnetic conducting ring, a die cavity is formed by gaps between the magnetic conducting ring and the magnetic conducting core rod, an outer magnetic conducting plate surrounding the magnetic conducting ring is arranged at the position outside the fixed die plate corresponding to the magnetic conducting ring, and the tie bars are connected through magnetic conducting leads. When the invention is in practical use, the upper orientation coil and the lower orientation coil can be electrified to generate opposite magnetic fields, or only one of the upper orientation coil and the lower orientation coil is electrified to generate a magnetic field; the externally-added magnetic conduction plate is directly connected with the tie bar through the magnetic conduction lead wire, so that the utilization rate of the orientation magnetic field can be effectively improved; the number of the die cavities can be set according to actual needs, and when the number of the die cavities is one, the die cavities are arranged in the center of the fixed die plate and concentric with the magnetic conductive core rod; when the die cavities are multiple in number, the die cavities are arranged at equal intervals in circumference by taking the center of the fixed die plate as the center of a circle, so that the effect of one die with multiple dies is realized, and the production efficiency is greatly improved.
Preferably, when the fixed die plate and the movable die plate are matched, the height of the die cavity is equal to or slightly smaller than the height of the part of the magnetic conduction core rod extending into the magnetic conduction ring.
Preferably, when the mold is closed, the difference between the height of the part of the magnetic conduction core rod extending into the magnetic conduction ring and the height of the mold cavity is 0-3 mm.
Preferably, the fixed die plate is entirely nonmagnetic or is nonmagnetic except for a portion having the same height as the cavity.
Preferably, the outer magnetic conduction plate and the fixed die plate are attached and fastened into a whole or a gap smaller than or equal to 5mm is reserved between the outer magnetic conduction plate and the fixed die plate.
Preferably, the thickness of the outer magnetic conduction plate is smaller than or equal to the depth of the die cavity, and the center plane of the outer magnetic conduction plate coincides with the center plane of the die cavity. The height of the outer magnetic conductive plate is smaller than or equal to the depth of the die cavity, so that the radiation orientation strength and uniformity of the electromagnetic field can be improved.
Preferably, a lower fixing plate is arranged below the supporting plate, a die foot is arranged between the lower fixing plate and the supporting plate, the upper end and the lower end of the die foot are respectively fixedly connected with the supporting plate and the lower fixing plate, an ejector plate capable of moving up and down relative to the lower fixing plate is further arranged between the supporting plate and the lower fixing plate, and an ejector rod is arranged on the ejector plate and fixedly connected with the push plate after passing through the supporting plate and the movable die plate.
Preferably, the fixed die plate is fixed with an upper fixed plate.
Therefore, the invention has the following beneficial effects: simple structure, convenient to use through adding the mode that magnetic conduction board and tiebar link to each other, effectively promotes electromagnetic field radiation orientation intensity and degree of uniformity.
Drawings
FIG. 1 is a schematic diagram showing a structure of an electromagnetic field radiation orientation apparatus of a ring-shaped injection molding magnet according to the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a schematic diagram showing the distribution of the magnetic conductive ring in the fixed mold plate in embodiment 1.
FIG. 4 is a schematic diagram showing a connection between an outer magnetic conductive plate and a stationary plate in an electromagnetic field radiation orientation apparatus of a ring-shaped injection molded magnet in example 1.
In the figure: the device comprises an upper orientation coil 1, a lower orientation coil 2, a tie bar 3, a fixed template 4, a supporting plate 5, a push plate 6, a magnetic conduction core rod 7, a movable template 8, a magnetic conduction ring 9, a die cavity 10, an outer magnetic conduction plate 11, a magnetic conduction lead 12, a lower fixed plate 13, an ejector plate 15, an ejector rod 16, an upper fixed plate 17 and a screw 18.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
Example 1
The electromagnetic field radiation orientation device of the circular injection molding magnet shown in fig. 1 and 2 comprises an upper orientation coil 1, a lower orientation coil 2 and a mold body, wherein four corner positions outside the mold body are provided with tie bars 3, the upper orientation coil and the lower orientation coil are respectively positioned among the four tie bars, the mold body comprises a fixed mold plate 4, a support plate 5 and a push plate 6, a magnetic core rod 7 and a movable mold plate 8 are fixed on the support plate, the push plate is arranged above the movable mold plate and can move up and down relative to the movable mold plate, the magnetic core rod passes through the movable mold plate, the push plate and is in sliding fit with the push plate, a lower fixed plate 13 is arranged below the support plate, the lower fixed plate is connected with a driving mechanism (not shown in a driving mechanism diagram, the driving mechanism can be a cylinder, an oil cylinder and other conventional mechanisms), mold legs are arranged between the lower fixed plate and the support plate, the upper and lower ends of the mold leg are respectively and fixedly connected with a supporting plate and a lower fixed plate, an ejector plate 15 which can move up and down relative to the lower fixed plate is also arranged between the supporting plate and the lower fixed plate, the ejector plate moves up and down relative to the lower fixed plate through a driving mechanism (the driving mechanism is not shown in a driving mechanism diagram, the driving mechanism can be a cylinder, an oil cylinder and other conventional mechanisms), an ejector rod 16 is arranged on the ejector plate, the ejector rod passes through the supporting plate and a movable mold plate and is fixedly connected with a push plate, the whole fixed mold plate is nonmagnetic, the fixed mold plate is positioned above the movable mold plate, an upper fixed plate 17 is fixed on the fixed mold plate, magnetic rings 9 are fixed in the fixed mold plate, the magnetic rings and magnetic core rods are four, the four magnetic rings are arranged at equal intervals in circumference with the center of the fixed mold plate (shown in figure 3), a guide mechanism is arranged between the fixed mold plate and the movable mold plate, the guide mechanism is a guide pillar and a guide sleeve (not shown in the figure), when the fixed die plate and the movable die plate are assembled, the upper end part of the magnetic conducting core rod stretches into the magnetic conducting ring, a gap between the magnetic conducting ring and the magnetic conducting core rod forms a die cavity 10, the height of the die cavity is equal to that of a part of the magnetic conducting core rod stretching into the magnetic conducting ring, an outer magnetic conducting plate 11 surrounding the magnetic conducting ring is arranged at a position, corresponding to the magnetic conducting ring, of the fixed die plate, the outer magnetic conducting plate is bonded with the fixed die plate and fastened into a whole through a screw 18 (shown in fig. 4), the thickness of the outer magnetic conducting plate is equal to the depth of the die cavity, the central plane of the outer magnetic conducting plate coincides with the central plane of the die cavity, and the outer magnetic conducting plate is connected with a tie bar through a magnetic conducting lead 12.
Melting injection molding ferrite particles (ferrite magnetic powder 90wt%, density of injection molding ferrite particles is 3.58 g/cm) 3 Magnetic energy product of 1.98 MGOe) is injected into a mold cavity for molding, and the power supply of the upper orientation coil and the lower orientation coil is startedThe upper orientation coil and the lower orientation coil generate opposite magnetic fields, and simultaneously the magnetic conduction core rod generates a radiated magnetic field to jointly radiate and orient the molten injection molding ferrite particles in the die cavity, and the magnetic force lines of the orientation magnetic field are closed through the outer magnetic conduction plate, the magnetic conduction lead wire and the tie rod.
The magnetic properties of the prepared injection molded ferrite bead sample were tested, and the test results are shown in table 1.
Comparative example 1
This comparative example differs from example 1 in that: the electromagnetic field radiation orientation device of the ring-shaped injection molding magnet is free of an outer magnetic conduction plate and a magnetic conduction lead wire, and the rest is the same as the embodiment 1.
The magnetic properties of the prepared injection molded ferrite bead sample were tested, and the test results are shown in table 1.
Example 2
This embodiment differs from embodiment 1 in that: the melted and molded anisotropic NdFeB particles (the anisotropic NdFeB magnetic powder accounts for 93wt percent) are subjected to the density of 5.15g/cm 3 Magnetic energy product of 14.2 MGOe) was injected into the cavity for molding, and the rest was exactly the same as in example 1.
The magnetic properties of the prepared injection molding anisotropic NdFeB magnetic ring sample were tested, and the test results are shown in Table 1.
Comparative example 2
This comparative example differs from example 2 in that: the electromagnetic field radiation orientation device of the ring-shaped injection molding magnet is free of an outer magnetic conduction plate and a magnetic conduction lead wire, and the rest is the same as the embodiment 2.
The magnetic properties of the prepared injection molding anisotropic NdFeB magnetic ring sample were tested, and the test results are shown in Table 1.
Example 3
This embodiment differs from embodiment 1 in that: the melted anisotropic injection-molded samarium-iron-nitrogen particles (the anisotropic samarium-iron-nitrogen particles account for 90wt percent) have the density of 4.33g/cm 3 Magnetic energy product 9.42 MGOe) is injected into a mold cavity for molding, and the restExactly the same as in example 1.
The magnetic properties of the prepared injection molding anisotropic samarium-iron-nitrogen magnetic ring sample were tested, and the test results are shown in table 1.
Comparative example 3
The comparative example is different from example 3 in that the electromagnetic field radiation orientation device of the ring-shaped injection-molded magnet has no outer magnetic conductive plate or magnetic conductive lead, and the rest is exactly the same as example 3.
The magnetic properties of the prepared injection molding anisotropic samarium-iron-nitrogen magnetic ring sample were tested, and the test results are shown in table 1.
Example 4
This embodiment differs from embodiment 1 in that: only the power supply of the lower alignment coil was turned on to generate a magnetic field in the lower alignment coil, and the rest was exactly the same as in example 1.
The magnetic properties of the prepared injection molded ferrite bead sample were tested, and the test results are shown in table 1.
Comparative example 4
The comparative example is different from example 4 in that the electromagnetic field radiation orientation device of the ring-shaped injection-molded magnet has no outer magnetic conductive plate or magnetic conductive lead, and the rest is exactly the same as example 4.
The magnetic properties of the prepared injection molded ferrite bead sample were tested, and the test results are shown in table 1.
Example 5
This embodiment differs from embodiment 2 in that: only the power supply of the lower alignment coil was turned on to generate a magnetic field in the lower alignment coil, and the rest was exactly the same as in example 2.
The magnetic properties of the prepared injection molding anisotropic NdFeB magnetic ring sample were tested, and the test results are shown in Table 1.
Comparative example 5
The comparative example is different from example 5 in that the electromagnetic field radiation orientation device of the ring-shaped injection-molded magnet has no outer magnetic conductive plate or magnetic conductive lead, and the rest is exactly the same as example 5.
The magnetic properties of the prepared injection molding anisotropic NdFeB magnetic ring sample were tested, and the test results are shown in Table 1.
Example 6
This embodiment differs from embodiment 3 in that: only the power supply of the lower alignment coil was turned on to generate a magnetic field in the lower alignment coil, and the rest was exactly the same as in example 3.
The magnetic properties of the prepared injection molding anisotropic samarium-iron-nitrogen magnetic ring sample were tested, and the test results are shown in table 1.
Comparative example 6
The comparative example was different from example 6 in that the electromagnetic field radiation orientation device of the ring-shaped injection-molded magnet was not provided with an outer magnetic conductive plate and a magnetic conductive lead, and the rest was exactly the same as example 6.
The magnetic properties of the prepared injection molding anisotropic samarium-iron-nitrogen magnetic ring sample were tested, and the test results are shown in table 1.
Table 1 results of testing magnetic properties of magnetic ring samples in examples and comparative examples
As can be seen from Table 1, the magnetic properties of the magnetic ring samples in examples 1-3 and examples 4-6 are respectively better than those of the corresponding magnetic ring samples in comparative examples 1-3 and comparative examples 4-6, which shows that the average surface magnetic strength of the radiation oriented annular injection molding magnet can be enhanced and the uniformity of the magnetic field is also improved by adopting the mode of connecting the externally added magnetic conductive plate with the tie bar.
The above-described embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other modifications may be made without departing from the technical aspects set forth in the claims.
Claims (5)
1. The electromagnetic field radiation orientation device of the circular injection molding magnet is characterized by comprising an upper orientation coil (1), a lower orientation coil (2) and a die body, wherein tie bars (3) are arranged at four corner positions outside the die body, the upper orientation coil and the lower orientation coil are respectively positioned between the four tie bars, the die body comprises a fixed die plate (4), a supporting plate (5) and a pushing plate (6), a magnetic conduction core rod (7) and a movable die plate (8) are fixed on the supporting plate, the pushing plate is arranged above the movable die plate and can move up and down relative to the movable die plate, the magnetic conduction core rod passes through the movable die plate and the pushing plate and is in sliding fit with the pushing plate, the fixed die plate is positioned above the movable die plate, a magnetic conduction ring (9) is fixed in the fixed die plate, when the fixed die plate and the movable die plate are clamped, the upper end part of the magnetic conduction core rod extends into the magnetic conduction ring, a die cavity (10) is formed by a gap between the magnetic conduction ring and the magnetic conduction core rod, when the fixed die plate and the movable die plate are clamped, the height of the die cavity is equal to the height of a part of the magnetic conduction ring extending into the ring, the magnetic conduction core rod is not magnetized or is connected with the magnetic conduction ring (12) outside the magnetic conduction ring and is arranged outside the magnetic conduction ring through the magnetic conduction ring (11) corresponding to the position outside the fixed die plate; when the magnetic field generator is used, the upper orientation coil and the lower orientation coil are electrified to generate opposite magnetic fields, or only one of the upper orientation coil and the lower orientation coil is electrified to generate the magnetic field.
2. The electromagnetic field radiation orientation device of the annular injection molding magnet according to claim 1, wherein the outer magnetic conductive plate and the fixed die plate are attached and fastened into a whole or a gap of less than or equal to 5mm is reserved between the outer magnetic conductive plate and the fixed die plate.
3. An electromagnetic field radiation orientation apparatus for a toroidal injection molded magnet according to claim 1 wherein the thickness of the outer magnetically permeable plate is less than or equal to the depth of the mold cavity and the center plane of the outer magnetically permeable plate coincides with the center plane of the mold cavity.
4. The electromagnetic field radiation orientation device of the circular injection molding magnet according to claim 1, wherein a lower fixing plate (13) is arranged below the supporting plate, a die leg is arranged between the lower fixing plate and the supporting plate, the upper end and the lower end of the die leg are respectively fixedly connected with the supporting plate and the lower fixing plate, an ejector plate (15) capable of moving up and down relative to the lower fixing plate is further arranged between the supporting plate and the lower fixing plate, and an ejector rod (16) is arranged on the ejector plate and fixedly connected with the push plate after passing through the supporting plate and the movable die plate.
5. Electromagnetic field radiation orientation device of a ring-shaped injection molding magnet according to claim 1, characterized in that the stationary platen is fixed with an upper stationary platen (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233033.7A CN113977856B (en) | 2021-10-22 | 2021-10-22 | Electromagnetic field radiation orientation device of annular injection molding magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233033.7A CN113977856B (en) | 2021-10-22 | 2021-10-22 | Electromagnetic field radiation orientation device of annular injection molding magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113977856A CN113977856A (en) | 2022-01-28 |
| CN113977856B true CN113977856B (en) | 2024-01-05 |
Family
ID=79740397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111233033.7A Active CN113977856B (en) | 2021-10-22 | 2021-10-22 | Electromagnetic field radiation orientation device of annular injection molding magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113977856B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042381A (en) * | 2022-06-01 | 2022-09-13 | 浙江英洛华引力科技有限公司 | Magnet injection molding orientation device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369462A1 (en) * | 1988-11-18 | 1990-05-23 | Shin-Etsu Chemical Co., Ltd. | Method of producing polar anisotropic rare earth magnet |
| CN101162646A (en) * | 2007-05-28 | 2008-04-16 | 深圳市天盈德科技有限公司 | Forming method of annular magnetic body orientating along the direction of radius or diameter radiation |
| CN101256898A (en) * | 2008-03-27 | 2008-09-03 | 深圳市天盈德科技有限公司 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
| CN202172011U (en) * | 2011-08-04 | 2012-03-21 | 中国电子科技集团公司第九研究所 | Radially oriented magnetic field mold |
| 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 |
| CN102637517A (en) * | 2011-02-12 | 2012-08-15 | 居磁工业股份有限公司 | Cold and hot press combined magnetic element |
| CN102822916A (en) * | 2010-04-05 | 2012-12-12 | 爱知制钢株式会社 | Method for producing anisotropic bonded magnet, and device for producing same |
| 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 |
| CN106057462A (en) * | 2016-07-13 | 2016-10-26 | 太原盛开源永磁设备有限公司 | Shifting magnetic field type method and device for pressing radiant orientation circular ring |
| CN107978443A (en) * | 2017-11-22 | 2018-05-01 | 包头稀土研究院 | Elevating type radiation oriented moulding method and mechanism |
-
2021
- 2021-10-22 CN CN202111233033.7A patent/CN113977856B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369462A1 (en) * | 1988-11-18 | 1990-05-23 | Shin-Etsu Chemical Co., Ltd. | Method of producing polar anisotropic rare earth magnet |
| CN101162646A (en) * | 2007-05-28 | 2008-04-16 | 深圳市天盈德科技有限公司 | Forming method of annular magnetic body orientating along the direction of radius or diameter radiation |
| CN101256898A (en) * | 2008-03-27 | 2008-09-03 | 深圳市天盈德科技有限公司 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
| CN102822916A (en) * | 2010-04-05 | 2012-12-12 | 爱知制钢株式会社 | Method for producing anisotropic bonded magnet, and device for producing same |
| CN102637517A (en) * | 2011-02-12 | 2012-08-15 | 居磁工业股份有限公司 | Cold and hot press combined magnetic element |
| CN202172011U (en) * | 2011-08-04 | 2012-03-21 | 中国电子科技集团公司第九研究所 | Radially oriented magnetic field mold |
| 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 |
| 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 |
| CN106057462A (en) * | 2016-07-13 | 2016-10-26 | 太原盛开源永磁设备有限公司 | Shifting magnetic field type method and device for pressing radiant orientation circular ring |
| CN107978443A (en) * | 2017-11-22 | 2018-05-01 | 包头稀土研究院 | Elevating type radiation oriented moulding method and mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113977856A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101256898B (en) | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body | |
| CN113977856B (en) | Electromagnetic field radiation orientation device of annular injection molding magnet | |
| CN208004792U (en) | A kind of compacting tool set preparing neodymium iron boron multi-pole magnet-ring | |
| CN101162646B (en) | Forming method of annular magnetic body orientating along the direction of radius or diameter radiation | |
| CN109605733B (en) | Magnetic material 3D printing apparatus | |
| CN103310970B (en) | The preparation method of permanent-magnetic ring of radial orientation and radial orientation device thereof | |
| CN106057462A (en) | Shifting magnetic field type method and device for pressing radiant orientation circular ring | |
| CN207781385U (en) | A kind of continuously adjustable permanent magnetism orientation magnetic source | |
| CN103903850A (en) | Anisotropic magnet radial orienting device | |
| US5079534A (en) | Electromagnet with press die and adjustable air gap | |
| CN111640552B (en) | Permanent magnet compression molding method and device | |
| CN103123863B (en) | The preparation facilities of a kind of permanent-magnetic ring of radial orientation | |
| CN102360914B (en) | Method for manufacturing annular magnet with radial magnetic orientation | |
| CN106252054B (en) | Anisotropic neodymium iron boron magnetic body is molded oriontation shaping device | |
| CN107978443A (en) | Elevating type radiation oriented moulding method and mechanism | |
| CN102891003A (en) | Radial permanent magnet orienting and magnetizing device of concentric ring opposed coil type | |
| CN103128286A (en) | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof | |
| CN207517512U (en) | Elevating type radiation oriented moulding mechanism | |
| CN205551463U (en) | Radiate press die carrier of oriented cyclic annular magnet | |
| CN203218101U (en) | Manufacturing device of radial orientation permanent magnet ring | |
| CN201084508Y (en) | A multi-polar magnetic ring magnetization mold | |
| CN203826198U (en) | Radial orientation device of anisotropic magnets | |
| CN116329546A (en) | Forming method of neodymium iron boron small cylinder | |
| CN107331500A (en) | One kind is used for special radial magnetic-field orientation forming module | |
| CN106449075A (en) | Integrally formed neodymium-iron-boron radiating ring extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |