CN113977856A - 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
- CN113977856A CN113977856A CN202111233033.7A CN202111233033A CN113977856A CN 113977856 A CN113977856 A CN 113977856A CN 202111233033 A CN202111233033 A CN 202111233033A CN 113977856 A CN113977856 A CN 113977856A
- Authority
- CN
- China
- Prior art keywords
- plate
- magnetic conduction
- mold
- fixed
- injection molding
- 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.)
- Granted
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 46
- 230000005855 radiation Effects 0.000 title claims abstract description 34
- 230000005672 electromagnetic field Effects 0.000 title claims abstract description 27
- 230000005389 magnetism Effects 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- PRQMIVBGRIUJHV-UHFFFAOYSA-N [N].[Fe].[Sm] Chemical compound [N].[Fe].[Sm] PRQMIVBGRIUJHV-UHFFFAOYSA-N 0.000 description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 229910001172 neodymium magnet Inorganic materials 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
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 mold body, wherein the corner positions outside the mold body are provided with a Gollin column, the upper orientation coil and the lower orientation coil are positioned between the four Gollin columns, the mold body comprises a fixed mold plate, a support plate and a push plate, the support plate is provided with a magnetic conduction core rod and a movable mold 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 conduction core rod passes through the movable mold plate and the push plate and is in sliding fit with the push plate, the fixed mold plate is positioned above the movable mold plate, the fixed mold plate is internally fixed with a magnetic conduction ring, when the fixed mold plate and the movable mold plate are closed, the upper end part of the magnetic conduction core rod extends into the magnetic conduction ring, a mold cavity is formed by a gap between the magnetic conduction ring and the magnetic conduction core rod, and the position outside the fixed mold plate corresponding to the magnetic conduction ring is provided with an outer magnetic conduction plate surrounding the magnetic conduction ring, the outer magnetic conduction plate is connected with the tie bar through a magnetic conduction lead. The invention is convenient to use and can improve the radiation orientation intensity 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 annular injection molding magnet has wide application prospect in the field of motors, and the greatest technical problem in the injection molding preparation process of the annular injection molding magnet is the radiation orientation of a molten material.
In the prior art, different technical means are adopted for achieving the purpose of radiation orientation of a circular injection molding magnet. The first is a magnetic field hedging method, which adopts the principle that like poles repel each other to generate a magnetic field required by radiation orientation, and the orientation mode enables the orientation effect of the magnet formed in the circumferential direction to be uniform. The method has the disadvantages that when the inner diameter of the annular injection molding magnet is smaller, the oriented magnetic field intensity can be greatly reduced, so that the orientation of the molten material is incomplete, and the performance of the material can not be effectively exerted; when the height of the annular injection molding magnet is higher, the strength and uniformity of the oriented 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 magnet mold cavity in the mold, and the orientation effect of a product with poor position selection 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 high speed in the circumferential direction, and then the problem that the orientation of the magnet in the circumferential direction is uneven is solved, but the orientation magnetic field intensity and consistency in the vertical direction cannot be fundamentally ensured. The mode that one mould goes out is mostly adopted to the ring shape magnet radiation orientation in-process of moulding plastics to the aforesaid, and work efficiency can not effectively promote, does not satisfy mass production's requirement.
Disclosure of Invention
The invention aims to solve the problems of the radiation taking method of the circular injection molding magnet in the prior art, and provides the electromagnetic field radiation orientation device of the circular injection molding magnet, which has the advantages of simple structure, convenience in use and capability of improving the radiation orientation strength and uniformity of an electromagnetic field.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention relates to an electromagnetic field radiation orientation device of a circular injection molding magnet, which comprises an upper orientation coil, a lower orientation coil and a mold body, wherein the corner positions outside the mold body are provided with Gollin posts, the upper orientation coil and the lower orientation coil are respectively positioned between the four Gollin posts, the mold body comprises a fixed mold plate, a support plate and a push plate, a magnetic conduction core rod and a movable mold plate 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 conduction core rod passes through the movable mold plate and the push plate and is in sliding fit with the push plate, the fixed mold plate is positioned above the movable mold plate, a magnetic conduction ring is fixed in the fixed mold plate, when the fixed mold plate and the movable mold plate are closed, the upper end part of the magnetic conduction core rod extends into the magnetic conduction ring, a gap between the magnetic conduction ring and the magnetic conduction core rod forms a mold cavity, an outer magnetic conduction plate surrounding the magnetic conduction ring is arranged outside the fixed mold plate and at a position corresponding to the magnetic conduction ring, the outer magnetic conduction plate is connected with the Gollin column through a magnetic conduction lead. When the magnetic field generating device is actually used, 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 external magnetic conduction plate is directly connected with the Gollin column through the magnetic conduction lead wire, so that the utilization rate of the oriented 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 are concentric with the magnetic core rod; when the die cavity quantity is a plurality of, a plurality of die cavities use the center of fixed die plate to be the circumference equidistance interval setting as the centre of a circle to realize the effect that a mould is many, improved production efficiency greatly.
Preferably, when the fixed die plate and the movable die plate are matched, the height of the die cavity is equal to or slightly less than the height of the part of the magnetic core rod extending into the magnetic conductive ring.
Preferably, the difference between the height of the part of the magnetic conducting core rod extending into the magnetic conducting ring and the height of the die cavity is 0-3 mm during die assembly.
Preferably, the fixed die plate is nonmagnetic as a whole or except for a portion having the same height as the cavity.
Preferably, the outer magnetic conductive plate is tightly attached to the fixed template, or a gap smaller than or equal to 5mm is reserved between the outer magnetic conductive plate and the fixed template.
Preferably, the thickness of the outer magnetic conductive plate is less than or equal to the depth of the die cavity, and the central plane of the outer magnetic conductive plate coincides with the central plane of the die cavity. The height of the outer magnetic conductive plate is less than or equal to the depth of the die cavity, so that the radiation orientation intensity and uniformity of the electromagnetic field can be improved.
Preferably, a lower fixing plate is arranged below the supporting plate, a mold foot is arranged between the lower fixing plate and the supporting plate, the upper end and the lower end of the mold foot are fixedly connected with the supporting plate and the lower fixing plate respectively, 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, an ejector rod is arranged on the ejector plate, and the ejector rod penetrates through the supporting plate and the movable mold plate and then is fixedly connected with the push plate.
Preferably, an upper fixing plate is fixed to the fixed die 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 promote electromagnetic field radiation orientation intensity and homogeneous degree.
Drawings
Fig. 1 is a schematic structural view of an electromagnetic field radiation orientation device of a circular ring-shaped injection molding magnet in the invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a schematic view of the distribution of the magnetic conductive rings in the fixed die plate in example 1.
Fig. 4 is a schematic view of a connection between an outer magnetic conductive plate and a fixed mold plate in the electromagnetic field radiation orientation apparatus for a toroidal injection molded magnet according to embodiment 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 conducting core rod 7, a movable template 8, a magnetic conducting ring 9, a die cavity 10, an outer magnetic conducting plate 11, a magnetic conducting lead 12, a lower fixing plate 13, a die pin 14, an ejector plate 15, an ejector rod 16, an upper fixing plate 17 and a screw 18.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Example 1
The electromagnetic field radiation orientation device of the ring-shaped injection molding magnet comprises an upper orientation coil 1, a lower orientation coil 2 and a mold body, wherein the mold body is provided with tie bars 3 at four corner positions outside the mold body, the upper orientation coil and the lower orientation coil are respectively positioned between the four tie bars, the mold body comprises a fixed mold plate 4, a support plate 5 and a push plate 6, a magnetic conducting 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 conducting core rod penetrates through the movable mold plate, the push plate and the push plate in sliding fit, a lower fixing plate 13 is arranged below the support plate, the lower fixing plate is connected with a driving mechanism (not shown in a driving mechanism picture, the driving mechanism can be a conventional mechanism such as an air cylinder, an oil cylinder and the like), mold feet 14 are arranged between the lower fixing plate and the support plate, and the upper end and the lower end of each mold foot are respectively connected with the support plate, The lower fixed plate is fixedly connected, an ejector plate 15 which can move up and down relative to the lower fixed plate is 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 (not shown in a driving mechanism diagram, the driving mechanism can be a conventional mechanism such as an air cylinder, an oil cylinder and the like), ejector rods 16 are arranged on the ejector plate, the ejector rods penetrate through the supporting plate and the movable template and are fixedly connected with the push plate, the fixed template is entirely nonmagnetic, the fixed template is positioned above the movable template, an upper fixed plate 17 is fixed on the fixed template, magnetic conduction rings 9 are fixed in the fixed template, the magnetic conduction rings and the magnetic conduction core rods are respectively provided with four magnetic conduction rings, the four magnetic conduction rings are circumferentially arranged at equal intervals by taking the center of the fixed template as a circle center (as shown in figure 3), a guide mechanism is arranged between the fixed template and the movable template, the guide post and a guide sleeve (not shown in the figure) are arranged, when the fixed template and the movable template are matched with the movable template, the upper end part of the magnetic conduction rings extends into the magnetic conduction rings, the gap between the magnetic conductive ring and the magnetic conductive core rod forms a die cavity 10, the height of the die cavity is equal to the height of the part of the magnetic conductive core rod extending into the magnetic conductive ring, an outer magnetic conductive plate 11 surrounding the magnetic conductive ring is arranged at the position outside the fixed die plate corresponding to the magnetic conductive ring, the outer magnetic conductive plate is attached to the fixed die plate and is fastened into a whole through a screw 18 (as shown in figure 4), the thickness of the outer magnetic conductive plate is equal to the depth of the die cavity, the central plane of the outer magnetic conductive plate is coincident with the central plane of the die cavity, and the outer magnetic conductive plate is connected with the tiebar through a magnetic conductive lead 12.
Molten injection-molded ferrite particles (ferrite magnetic powder content: 90wt%, density of injection-molded ferrite particles: 3.58 g/cm)3Magnetic energy product is 1.98 MGOe), and the magnetic field lines of the oriented magnetic field are closed through an outer magnetic conduction plate, a magnetic conduction lead and a Gollin column.
The magnetic performance of the prepared injection molding ferrite bead sample was 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 annular injection molding magnet is not provided with an outer magnetic conduction plate and a magnetic conduction lead wire, and the rest is the same as that of the embodiment 1.
The magnetic performance of the prepared injection molding ferrite bead sample was tested, and the test results are shown in table 1.
Example 2
This example is different from example 1 in that: melting injection molding anisotropic neodymium iron boron granular material (the anisotropic neodymium iron boron magnetic powder accounts for 93wt%, and the density of the injection molding anisotropic neodymium iron boron granular material is 5.15g/cm3Magnetic energy product of 14.2 MGOe) was injected into the cavity and molded, and the rest was completely the same as in example 1.
The magnetic performance of the prepared injection molding anisotropic neodymium iron boron magnet ring sample is tested, and the test results are shown in table 1.
Comparative example 2
This comparative example is different from example 2 in that: the electromagnetic field radiation orientation device of the annular injection molding magnet is not provided with an outer magnetic conduction plate and a magnetic conduction lead wire, and the rest is the same as the embodiment 2.
The magnetic performance of the prepared injection molding anisotropic neodymium iron boron magnet ring sample is tested, and the test results are shown in table 1.
Example 3
This example is different from example 1 in that: melting injection molding anisotropic samarium iron nitrogen particles (the content of the anisotropic samarium iron nitrogen particles is 90wt percent, and the density of the injection molding anisotropic samarium iron nitrogen particles is 4.33g/cm3Magnetic energy product of 9.42 MGOe) was injected into the cavity and molded, and the rest was completely the same as in example 1.
The magnetic performance of the prepared injection molding anisotropic samarium iron nitrogen magnetic ring sample was tested, and the test results are shown in table 1.
Comparative example 3
Compared with the embodiment 3, the difference of the comparative example is that the electromagnetic field radiation orientation device of the annular injection molding magnet is completely the same as the embodiment 3 except that an outer magnetic conduction plate and a magnetic conduction lead wire are not arranged.
The magnetic performance of the prepared injection molding anisotropic samarium iron nitrogen magnetic ring sample was tested, and the test results are shown in table 1.
Example 4
This example is different from example 1 in that: the same procedure as in example 1 was repeated except that the power supply to the lower orientation coil was turned on to generate a magnetic field.
The magnetic performance of the prepared injection molding ferrite bead sample was tested, and the test results are shown in table 1.
Comparative example 4
Compared with the embodiment 4, the difference of the comparative example is that the electromagnetic field radiation orientation device of the annular injection molding magnet is completely the same as the embodiment 4 except that an outer magnetic conduction plate and a magnetic conduction lead wire are not arranged.
The magnetic performance of the prepared injection molding ferrite bead sample was tested, and the test results are shown in table 1.
Example 5
This example is different from example 2 in that: the same procedure as in example 2 was repeated except that the power supply to the lower orientation coil was turned on to generate a magnetic field in the lower orientation coil.
The magnetic performance of the prepared injection molding anisotropic neodymium iron boron magnet ring sample is tested, and the test results are shown in table 1.
Comparative example 5
Compared with the embodiment 5, the difference of the comparative example is that the electromagnetic field radiation orientation device of the annular injection molding magnet is completely the same as the embodiment 5 except that an outer magnetic conduction plate and a magnetic conduction lead wire are not arranged.
The magnetic performance of the prepared injection molding anisotropic neodymium iron boron magnet ring sample is tested, and the test results are shown in table 1.
Example 6
This example is different from example 3 in that: the same procedure as in example 3 was repeated except that the power supply to the lower orientation coil was turned on to generate a magnetic field in the lower orientation coil.
The magnetic performance of the prepared injection molding anisotropic samarium iron nitrogen magnetic ring sample was tested, and the test results are shown in table 1.
Comparative example 6
Compared with the embodiment 6, the difference of the comparative example is that the electromagnetic field radiation orientation device of the annular injection molding magnet is completely the same as the embodiment 6 except that an outer magnetic conduction plate and a magnetic conduction lead wire are not arranged.
The magnetic performance of the prepared injection molding anisotropic samarium iron nitrogen magnetic ring sample was tested, and the test results are shown in table 1.
TABLE 1 magnetic Property test results 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 to 3 and examples 4 to 6 are respectively superior to those of the corresponding magnetic ring samples in comparative examples 1 to 3 and comparative examples 4 to 6, which indicates that the average surface magnetic strength of the radiation-oriented annular injection magnet can be enhanced and the uniformity of the magnetic field is also improved by adopting the manner of connecting the additional magnetic conductive plate with the golling column in the present invention.
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 and variations may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. An electromagnetic field radiation orientation device of a circular injection molding magnet is characterized by comprising an upper orientation coil (1), a lower orientation coil (2) and a mold body, wherein the four corner positions outside the mold body are provided with tie columns (3), the upper orientation coil and the lower orientation coil are respectively positioned between the four tie columns, the mold body comprises a fixed template (4), a supporting plate (5) and a push plate (6), a magnetic conduction core rod (7) and a movable template (8) are fixed on the supporting plate, the push plate is arranged above the movable template and can move up and down relative to the movable template, the magnetic conduction core rod penetrates through the movable template and the push plate and is in sliding fit with the push plate, the fixed template is positioned above the movable template, a magnetic conduction ring (9) is fixed in the fixed template, when the fixed template and the movable template are closed, the upper end part of the magnetic conduction core rod extends into the magnetic conduction ring, and a gap between the magnetic conduction ring and the magnetic conduction core rod forms a mold cavity (10), an outer magnetic conduction plate (11) surrounding the magnetic conduction ring is arranged at the position, corresponding to the magnetic conduction ring, outside the fixed template, and the outer magnetic conduction plate is connected with the Gollin column through a magnetic conduction lead (12).
2. The electromagnetic field radiation orientation device of a toroidal injection molding magnet as claimed in claim 1, wherein when the stationary and moving mold plates are closed, the height of the mold cavity is equal to or slightly less than the height of the portion of the magnetically permeable core rod extending into the magnetically permeable ring.
3. The electromagnetic field radiation orientation device of a circular injection molding magnet as claimed in claim 2, wherein the difference between the height of the part of the magnetic core rod extending into the magnetic ring and the height of the mold cavity is 0-3 mm when the mold is closed.
4. The electromagnetic field radiation orientation device of a circular ring-shaped injection molding magnet according to claim 1, wherein the fixed mold plate is entirely free of magnetism or is free of magnetism except for a portion having the same height as the mold cavity.
5. The electromagnetic field radiation orientation device of a circular injection molding magnet as claimed in claim 1, wherein the outer magnetic conductive plate is tightly attached to the fixed mold plate or a gap of 5mm or less is left between the outer magnetic conductive plate and the fixed mold plate.
6. The electromagnetic field radiation orientation device of a toroidal injection molding magnet as claimed in claim 1, wherein the thickness of said outer magnetic conductive plate is less than or equal to the depth of the mold cavity, and the center plane of the outer magnetic conductive plate coincides with the center plane of the mold cavity.
7. The electromagnetic field radiation orientation device of a circular injection molding magnet as claimed in claim 1, wherein a lower fixing plate (13) is arranged below the supporting plate, a mold foot (14) is arranged between the lower fixing plate and the supporting plate, the upper end and the lower end of the mold foot 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 penetrating through the supporting plate and the movable mold plate.
8. An electromagnetic field radiation orientation device of a circular ring-shaped injection molding magnet according to claim 1, characterized in that an upper fixing plate (17) is fixed on the fixed mold plate.
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 true CN113977856A (en) | 2022-01-28 |
| CN113977856B 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) |
Cited By (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 (11)
| 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 |
| US20090246063A1 (en) * | 2008-03-27 | 2009-10-01 | Shenzhen Radimag Technology Co., Ltd. | Method and apparatus for producing radially oriented ring magnet |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113977856B (en) | 2024-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0016960B1 (en) | Anisotropic polymeric magnet in the tubular form and process for producing the same | |
| CN101256898B (en) | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body | |
| CN208004792U (en) | A kind of compacting tool set preparing neodymium iron boron multi-pole magnet-ring | |
| US4441875A (en) | Mold apparatus for forming article under influence of magnetic field | |
| CN113977856A (en) | Electromagnetic field radiation orientation device of annular injection molding magnet | |
| WO2008145002A1 (en) | Method of moulding radial ring magnet and device thereof | |
| CN103310970A (en) | Preparation method of radial orienting permanent magnetic ring and radial orienting device used by same | |
| CN207781385U (en) | A kind of continuously adjustable permanent magnetism orientation magnetic source | |
| CN103903850A (en) | Anisotropic magnet radial orienting device | |
| CN102360914B (en) | Method for manufacturing annular magnet with radial magnetic orientation | |
| CN106252054B (en) | Anisotropic neodymium iron boron magnetic body is molded oriontation shaping device | |
| CN110931236A (en) | Injection molding anisotropic bonding neodymium iron boron magnetic tile radiation orientation forming method and device | |
| CN217670780U (en) | Injection molding magnetic mold with electromagnetic orientation | |
| CN207517512U (en) | Elevating type radiation oriented moulding mechanism | |
| CN211194786U (en) | Multi-cavity injection mold for anisotropic magnet | |
| CN109616277A (en) | A kind of end face multipole permanent magnet sine wave magnetizing clamp | |
| CN203826198U (en) | Radial orientation device of anisotropic magnets | |
| Gardocki et al. | Improvement of the filler orientability during injection molding of multi-polar SmCo-magnets by premagnetization | |
| JPWO2010029642A1 (en) | Rare earth anisotropic bonded magnet manufacturing method, magnet molded body orientation processing method, and magnetic field molding apparatus | |
| CN106449075A (en) | Integrally formed neodymium-iron-boron radiating ring extruder | |
| JPS6252913A (en) | Method and device for manufacture of multipolar anisotropic cylindrical magnet | |
| CN105666936A (en) | Die for manufacturing magnet ring | |
| JP3702036B2 (en) | Method for producing anisotropic resin magnet and mold for production | |
| JP3538762B2 (en) | Method for producing anisotropic bonded magnet and anisotropic bonded magnet | |
| CN104505205B (en) | Rare earth permanent magnetic material molding equipment and molding method |
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 |