CN117038310B - Magnetic powder orientation forming device for sintered NdFeB magnet production - Google Patents
Magnetic powder orientation forming device for sintered NdFeB magnet production Download PDFInfo
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- CN117038310B CN117038310B CN202311038608.9A CN202311038608A CN117038310B CN 117038310 B CN117038310 B CN 117038310B CN 202311038608 A CN202311038608 A CN 202311038608A CN 117038310 B CN117038310 B CN 117038310B
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- fixedly connected
- electric telescopic
- magnetic powder
- hardening
- telescopic rod
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- 239000006247 magnetic powder Substances 0.000 title claims abstract description 51
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000005389 magnetism Effects 0.000 claims abstract description 7
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention provides a magnetic powder orientation molding device for producing a sintered NdFeB magnet. The magnetic powder orientation forming device for producing the sintered NdFeB magnet comprises a horizontal bottom plate, wherein the upper surface of the horizontal bottom plate is fixedly connected with a third electric telescopic rod, the output end of the third electric telescopic rod is fixedly connected with a supporting ejector rod, one end of the supporting ejector rod, which is far away from the third electric telescopic rod, is fixedly connected with a rectangular pipeline, and the upper end of the rectangular pipeline is fixedly connected with a storage tank. The rectangular pipeline realizing device that can go up and down through the design avoids leaking because of adding the magnetic powder many times and causes the magnetic powder in the in-process of using, influences staff's health to can carry out preliminary pole separation with the magnetic powder through rectangular pipeline before getting into the hardening mould, and then avoid directly carrying out the pole separation through powerful magnetism to inhale the device and cause incomplete problem, avoid appearing strong striking between the magnetic powder through inclined baffle in addition, the time of extension pole separation.
Description
Technical Field
The invention relates to the technical field of orientation forming devices, in particular to a magnetic powder orientation forming device for producing a sintered NdFeB magnet.
Background
The sintered NdFeB magnet is a high-performance permanent magnet material, has excellent performances of high magnetic energy product, high coercivity, high magnetic saturation and the like, and is widely applied to the fields of motors, generators, computer hard disks, automobiles and the like. According to the required magnet performance and shape, neodymium iron boron magnet raw materials (such as ferric oxide, neodymium oxide, aluminum oxide, praseodymium oxide and the like) are uniformly mixed according to a certain proportion. And the mixed neodymium iron boron magnet raw materials are put into a ball mill for ball milling, so that the granularity is finer, and the subsequent forming and sintering are facilitated. Pressing the ball-milled magnetic powder into a required shape by using a forming die, putting the ball-milled magnetic powder into a sintering furnace, putting the sintered magnet into a magnetizing device, and applying a strong magnetic field to enable the magnet to have permanent magnetic performance. The magnetic powder orientation forming device is a device for producing magnetic materials, and is mainly used for orienting magnetic powder into a required magnetic structure and shape. The main components of the material comprise: the magnetic powder storage tank, the stirrer, the magnetic powder feeder, the forming die, the magnetic field device, the curing device and the taking-out device can enable the magnetic powder to be oriented into a required magnetic structure in the forming process, so that fine regulation and control on the performance of the magnetic material are realized. The magnetic powder orientation forming device is widely applied to the production of various magnetic materials, such as magnets, magnetic cores, magnetic sensors and the like.
However, if insufficient stirring is carried out, the magnetism of the magnetic powder is weakened, and the quality of a product is further influenced, so that according to the invention of the applicant, the magnetic powder orientation forming device for producing the sintered NdFeB magnet is invented, and the problems that the magnetism is influenced by the distribution of the magnetic powder due to insufficient stirring, the magnetic powder is forcedly stirred, and the body health is influenced by the scattering of the magnetic powder due to repeated small addition are solved.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a magnetic powder orientation molding device for producing a sintered NdFeB magnet, which solves the problems that the magnetic powder distribution affects the magnetism and is forcedly stirred due to insufficient stirring, and the magnetic powder is scattered due to repeated small addition to affect the health.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: a magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets, comprising:
the horizontal bottom plate is fixedly connected with a third electric telescopic rod on the upper surface of the horizontal bottom plate, the output end of the third electric telescopic rod is fixedly connected with a supporting ejector rod, one end of the supporting ejector rod, which is far away from the third electric telescopic rod, is fixedly connected with a rectangular pipeline, the upper end of the rectangular pipeline is fixedly connected with a storage tank, and the upper surface of the horizontal bottom plate is provided with a cover plate;
the device comprises a strong magnetic attraction device, a first electric telescopic rod and a magnetic plate, wherein the lateral surface of the lateral support plate is fixedly connected with the first electric telescopic rod, and one end of the first electric telescopic rod, which is far away from the strong magnetic attraction device, is fixedly connected with the magnetic plate;
the inner surface fixedly connected with baffle of rectangle pipeline, the side surface of baffle is provided with the opening, open-ended top inner wall fixedly connected with inclined baffle, the inside fixedly connected with hardening box of horizontal bottom plate, the bottom inner wall fixedly connected with second electric telescopic handle of hardening box, the upper surface of second electric telescopic handle is provided with the hardening mould, the inside of hardening box forms first cavity, the inside of hardening mould forms the second cavity, the upper surface of hardening box is provided with the rectangle opening.
Preferably: the upper end fixedly connected with go-between of holding vessel, the one end fixedly connected with feeding pipe that the holding vessel was kept away from to the go-between.
Preferably: the feeding guide pipe is communicated with the storage tank through the connecting ring, and the storage tank is communicated with the hardening box through the rectangular pipeline.
Preferably: the lower surface of the horizontal bottom plate is fixedly connected with hard supporting legs, the number of the powerful magnetic attraction devices is two, and the powerful magnetic attraction devices are distributed left and right and used for limiting the direction of magnetic powder inside the hardening die conveniently.
Preferably: the upper surface of the powerful magnetic attraction device is fixedly connected with the lower surface of the horizontal bottom plate, and the upper surface of the magnetic force plate is in sliding connection with the lower surface of the horizontal bottom plate.
Preferably: the first electric telescopic rods, the second electric telescopic rods and the third electric telescopic rods are all connected with an external power supply, and the number of the second electric telescopic rods is multiple, and the second electric telescopic rods are distributed in a rectangular array and used for increasing the supporting capacity of the hardening die.
Preferably: the number of the inclined baffles is multiple, the inclined baffles are distributed left and right in an alternating mode, a first circulation cavity is formed between the right side of the partition plate and the rectangular pipeline, and a second circulation cavity is formed between the left surface of the partition plate and the rectangular pipeline.
Preferably: the number of the hardening molds is a plurality of, the sizes of the hardening molds are different from each other, a box door is arranged on the rear surface of the hardening box body, the size of the cover plate is larger than that of the rectangular opening, and the rectangular pipeline is in sliding connection with the rectangular opening and is used for preventing particles from flying out.
(III) beneficial effects
The invention provides a magnetic powder orientation molding device for producing a sintered NdFeB magnet. The beneficial effects are as follows:
this magnetic powder orientation forming device that sintered neodymium iron boron magnetism body production was used, the rectangle pipeline that can go up and down through the design realizes that the device avoids because add the leakage that the magnetic caused the magnetic many times in the in-process of using, influences staff's health to can carry out preliminary pole separation with the magnetic through the rectangle pipeline before getting into the hardening mould, and then avoid directly to inhale the device through powerful magnetism and carry out the pole separation and cause incomplete problem, avoid appearing strong striking between the magnetic through inclined baffle in addition, the time of extension pole separation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the hardening box according to the present invention;
FIG. 3 is a schematic view of the internal structure of a rectangular pipeline according to the present invention;
FIG. 4 is an enlarged schematic view of the structure shown in FIG. 3A;
fig. 5 is a schematic diagram of the usage of the hardening box of the present invention for shaping magnetic powder.
Wherein, 1, a horizontal bottom plate; 2. a rigid support leg; 3. a powerful magnetic attraction device; 4. a lateral support plate; 5. a first electric telescopic rod; 6. a magnetic plate; 7. hardening the box body; 8. a rectangular opening; 9. hardening the mold; 10. a first cavity; 11. a second electric telescopic rod; 12. a second cavity; 13. a cover plate; 14. a third electric telescopic rod; 15. supporting the ejector rod; 16. a storage tank; 17. a connecting ring; 18. a feed conduit; 19. a plate-like electromagnet; 20. rectangular pipes; 21. a first flow-through chamber; 22. a partition plate; 23. an opening; 24. an inclined baffle; 25. and a second flow through chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, the embodiment of the invention provides a magnetic powder orientation forming device for producing sintered neodymium-iron-boron magnets, which comprises a horizontal bottom plate 1, wherein the lower surface of the horizontal bottom plate 1 is fixedly connected with hard supporting legs 2, the number of the powerful magnetic attraction devices 3 is two and distributed left and right and is used for limiting the magnetic powder direction inside a hardening die 9 conveniently, the upper surface of the horizontal bottom plate 1 is fixedly connected with a third electric telescopic rod 14, the output end of the third electric telescopic rod 14 is fixedly connected with a supporting ejector rod 15 for supporting a storage tank 16, one end of the supporting ejector rod 15, which is far away from the third electric telescopic rod 14, is fixedly connected with a rectangular pipeline 20, the upper end of the rectangular pipeline 20 is fixedly connected with the storage tank 16, the upper end of the storage tank 16 is fixedly connected with a connecting ring 17, one end of the connecting ring 17, which is far away from the storage tank 16, is fixedly connected with a feeding conduit 18, the feeding conduit 18 is communicated with the storage tank 16 through the connecting ring 17, the inside of the storage tank 16 is provided with a quantitative discharging device, the storage tank 16 is communicated with the hardening box 7 through the rectangular pipeline 20, and the upper surface of the horizontal bottom plate 1 is provided with a cover plate 13 for extruding magnetic powder inside the hardening die 9.
The powerful magnetic attraction device 3 is used for carrying out final magnetization on magnetic powder, the upper surface of the powerful magnetic attraction device 3 is fixedly connected with the lower surface of the horizontal bottom plate 1, the upper surface of the magnetic plate 6 is slidably connected with the lower surface of the horizontal bottom plate 1, the powerful magnetic attraction device 3 comprises a lateral support plate 4, a first electric telescopic rod 5 and the magnetic plate 6, the first electric telescopic rod 5, a second electric telescopic rod 11 and a third electric telescopic rod 14 are all connected with an external power supply, the number of the second electric telescopic rods 11 is multiple, the second electric telescopic rods are distributed in a rectangular array and are used for increasing the supporting capacity on the hardening die 9, the lateral surface of the lateral support plate 4 is fixedly connected with the first electric telescopic rod 5, and one end of the first electric telescopic rod 5, far away from the powerful magnetic attraction device 3, is fixedly connected with the magnetic plate 6.
The inner surface fixedly connected with baffle 22 of rectangle pipeline 20, the side surface of baffle 22 is provided with opening 23, the top inner wall fixedly connected with inclined baffle 24 of opening 23, the quantity of inclined baffle 24 is a plurality of and controls the alternating distribution, form first circulation chamber 21 between the right side of baffle 22 and the rectangle pipeline 20, form second circulation chamber 25 between the left surface of baffle 22 and the rectangle pipeline 20, the inside fixedly connected with hardening box 7 of horizontal bottom plate 1, the bottom inner wall fixedly connected with second electric telescopic handle 11 of hardening box 7, the upper surface of second electric telescopic handle 11 is provided with hardening mould 9, the quantity of hardening mould 9 is a plurality of and the size is different, the rear surface of hardening box 7 is provided with the chamber door, be used for putting into and taking out hardening mould 9, the size of apron 13 is greater than the size of rectangle opening 8, rectangle pipeline 20 and rectangle opening 8 sliding connection, be used for avoiding granule to fly out, the inside of hardening box 7 forms first cavity 10, the inside of hardening mould 9 forms second cavity 12, the upper surface of hardening box 7 is provided with rectangle opening 8, be used for getting into with the finished product magnetic powder and take out.
Working principle: the holding vessel 16 is used for storing the magnetic powder, use loading attachment to place the magnetic powder in the inside of holding vessel 16 through feeding pipe 18, discharge the magnetic powder through quantitative blowing device when needs use, and open the plate electromagnet 19, the magnetic pole direction of two plate electromagnets 19 is different, different magnetic poles adsorb the magnetic powder in advance, adjust the magnetic size and keep the magnetic powder to can follow the inside of rectangular tube 20 at the uniform velocity slip, and drop to the inside of hardening mould 9 after the slip is accomplished, hardening mould 9 is for selecting suitable size as required, and place in the inside of hardening box 7 through the chamber door, after the magnetic powder is accomplished to place, raise rectangular tube 20 through third electric telescopic handle 14, place apron 13 in the upside of hardening box 7, and limit apron 13 through rectangular tube 20 from the upside, second electric telescopic handle 11 pressurizes the magnetic powder, heat the magnetic powder in the outside of hardening box 7 through heating device, can obtain the product that needs.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a magnetic powder orientation forming device for sintered neodymium iron boron magnetism body production which characterized in that includes: the horizontal bottom plate (1), the upper surface fixedly connected with third electric telescopic rod (14) of horizontal bottom plate (1), the output fixedly connected with support ejector pin (15) of third electric telescopic rod (14), the one end that supports ejector pin (15) keep away from third electric telescopic rod (14) fixedly connected with rectangle pipeline (20), the upper end fixedly connected with holding vessel (16) of rectangle pipeline (20), the upper surface of horizontal bottom plate (1) is provided with apron (13);
the device comprises a plurality of strong magnetic attraction devices (3), wherein the number of the strong magnetic attraction devices (3) is two and distributed left and right, the strong magnetic attraction devices (3) comprise lateral support plates (4), first electric telescopic rods (5) and magnetic plates (6), the lateral surfaces of the lateral support plates (4) are fixedly connected with the first electric telescopic rods (5), and one ends, far away from the strong magnetic attraction devices (3), of the first electric telescopic rods (5) are fixedly connected with the magnetic plates (6);
the plate-shaped electromagnets (19), the plate-shaped electromagnets (19) with different magnetic pole directions are respectively arranged on two sides of the rectangular pipeline (20), a partition plate (22) is fixedly connected to the inner surface of the rectangular pipeline (20), a first through cavity (21) is formed between the right side of the partition plate (22) and the rectangular pipeline (20), a second through cavity (25) is formed between the left surface of the partition plate (22) and the rectangular pipeline (20), an opening (23) is formed in the side surface of the partition plate (22), inclined baffle plates (24) are fixedly connected to the top inner wall of the opening (23), the number of the inclined baffle plates (24) is multiple and distributed left and right alternately, a hardening box body (7) is fixedly connected to the inner side of the horizontal bottom plate (1), a second electric telescopic rod (11) is fixedly connected to the bottom inner wall of the hardening box body (7), a hardening die (9) is arranged on the upper surface of the second electric telescopic rod (11), a first cavity (10) is formed in the hardening box body (7), an inner part of the hardening box body (9) is provided with an opening (23), the second electric telescopic rod (12) is formed in the inside of the hardening box body, and after the second electric telescopic rod (7) is lifted up, magnetic powder is placed on the upper surface of the rectangular pipeline (20) through the opening (14), the cover plate (13) is placed on the upper side of the hardening box body (7), and the cover plate (13) is limited through the rectangular pipeline (20) from the upper side.
2. The magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 1, wherein: the upper end fixedly connected with go-between (17) of holding vessel (16), the one end fixedly connected with feeding pipe (18) that holding vessel (16) were kept away from to go-between (17).
3. A magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 2, characterized in that: the feeding conduit (18) is communicated with the storage tank (16) through the connecting ring (17), and the storage tank (16) is communicated with the hardening box body (7) through the rectangular pipeline (20).
4. The magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 1, wherein: the lower surface of the horizontal bottom plate (1) is fixedly connected with hard supporting legs (2).
5. A magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 1, wherein: the upper surface of the powerful magnetic attraction device (3) is fixedly connected with the lower surface of the horizontal bottom plate (1), and the upper surface of the magnetic force plate (6) is slidably connected with the lower surface of the horizontal bottom plate (1).
6. A magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 1, wherein: the first electric telescopic rods (5), the second electric telescopic rods (11) and the third electric telescopic rods (14) are all connected with an external power supply, and the number of the second electric telescopic rods (11) is multiple and distributed in a rectangular array.
7. A magnetic powder orientation molding device for producing sintered neodymium-iron-boron magnets according to claim 1, wherein: the number of the hardening dies (9) is a plurality of, the sizes of the hardening dies are different from each other, the rear surface of the hardening box body (7) is provided with a box door, the size of the cover plate (13) is larger than that of the rectangular opening (8), and the rectangular pipeline (20) is in sliding connection with the rectangular opening (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311038608.9A CN117038310B (en) | 2023-08-17 | 2023-08-17 | Magnetic powder orientation forming device for sintered NdFeB magnet production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311038608.9A CN117038310B (en) | 2023-08-17 | 2023-08-17 | Magnetic powder orientation forming device for sintered NdFeB magnet production |
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| CN117038310A CN117038310A (en) | 2023-11-10 |
| CN117038310B true CN117038310B (en) | 2024-01-09 |
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| CN206631701U (en) * | 2017-03-29 | 2017-11-14 | 新郑市宝德高技术有限公司 | A kind of carborundum powder crushing and classification integrated apparatus |
| CN107170576A (en) * | 2017-07-06 | 2017-09-15 | 廊坊京磁精密材料有限公司 | The press blanking device of sintered Nd-Fe-B permanent magnetic material |
| CN109308971A (en) * | 2018-08-20 | 2019-02-05 | 海宁华悦电子有限公司 | A kind of magnetic core processing unit (plant) |
| CN209015883U (en) * | 2018-11-08 | 2019-06-21 | 沈阳五寰科技有限公司 | A kind of automatic magnetic field orientating formation system of sintered NdFeB |
| CN209254844U (en) * | 2018-11-20 | 2019-08-16 | 嘉善德威磁电有限公司 | It is a kind of for processing the material tower of magnetic core |
| CN110237891A (en) * | 2019-06-17 | 2019-09-17 | 华南理工大学 | A kind of broken multistage screening plant of solid |
| CN211988398U (en) * | 2019-08-16 | 2020-11-24 | 江苏博瑞通磁业有限公司 | High coercivity high stability neodymium iron boron magnetism body is with batching mixing arrangement |
| CN211865180U (en) * | 2019-11-25 | 2020-11-06 | 浙江百事德办公设备有限公司 | Photosensitive drum separating device |
| CN112466643A (en) * | 2020-10-28 | 2021-03-09 | 杭州永磁集团有限公司 | Preparation method of sintered neodymium-iron-boron material |
| CN112687443A (en) * | 2020-12-22 | 2021-04-20 | 苑红新 | Method for manufacturing neodymium iron boron magnet |
| CN114603145A (en) * | 2021-01-20 | 2022-06-10 | 江西理工大学 | Device and method for crushing/surface modification of sintered NdFeB SC cast sheet |
| CN217507094U (en) * | 2022-03-26 | 2022-09-27 | 江苏雷晟新材料科技有限公司 | Neodymium iron boron magnet multi-pole positioning orientation forming device |
| CN217719286U (en) * | 2022-05-31 | 2022-11-01 | 太原市清徐县新力高能永磁厂 | Magnetic field orientation forming device for sintered neodymium iron boron permanent magnet material |
| CN115090652A (en) * | 2022-06-24 | 2022-09-23 | 广州大学 | Reinforced abrasive recovery processing equipment |
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