CN203140772U - Anisotropic sintering rare earth permanent magnetic material radial orientation device - Google Patents
Anisotropic sintering rare earth permanent magnetic material radial orientation device Download PDFInfo
- Publication number
- CN203140772U CN203140772U CN 201320113165 CN201320113165U CN203140772U CN 203140772 U CN203140772 U CN 203140772U CN 201320113165 CN201320113165 CN 201320113165 CN 201320113165 U CN201320113165 U CN 201320113165U CN 203140772 U CN203140772 U CN 203140772U
- Authority
- CN
- China
- Prior art keywords
- coil
- sleeve
- magnetic material
- magnetic field
- earth permanent
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The utility model provides an anisotropic sintering rare earth permanent magnetic material radial orientation device which comprises an upper mold sleeve, a lower mold sleeve, a female mold arranged between the upper mold sleeve and the lower mold sleeve, an upper punch arranged in the upper mold sleeve, a lower punch arranged in the lower mold sleeve, an upper core rod arranged in the upper punch, a lower core rod arranged in the lower punch, a pair of direct-current coils arranged on the outer side of the upper mold sleeve and the outer side of the lower mold sleeve, and a direct-current power source connected with the direct-current coils. The anisotropic sintering rare earth permanent magnetic material radial orientation device further comprises a pair of pulse coils and a pulse power source connected with the pulse coils. The pair of pulse coils are arranged on the upper portion and the lower portion of the female mold respectively, and the parameter of a direct-current magnetic field generated by the direct-current power source and the direct-current coils is 5000-600000NI, and the parameter of a pulse magnetic field generated by the pulse power source generates and the pulse coils is 5000-20000000NI. A continuous pulse magnetizing frequency of the pulse magnetic filed is 1-10 times per second. The anisotropic sintering rare earth permanent magnetic material radial orientation device has the advantages that the direct-current magnetic field and the pulse magnetic field orientate magnetic powder at the same time, magnetic property is improved, residual magnetism on the surface of a magnetic billet after orientation molding can be below 2 gausses, and demolding is easy.
Description
Technical field
The utility model relates to the radial orientation technology of a kind of anisotropy sintered rare-earth permanent magnetic material, especially relates to the radial aligning device of a kind of anisotropy sintered rare-earth permanent magnetic material.
Background technology
Rare earth magnet has excellent magnetic characteristic and very high cost performance as the high-performance anisotropic permanent magnet, is widely used in fields such as electronics, electric machinery, medicine equipment, toy, packing, hardware machinery and space flight and aviation.
In the process of preparation sintered permanent magnet, magnetic need be put into magnet moulding aligning device usually after magnetic field orientating and compression forming, sintering forms again.At present, the alignment magnetic field in the magnet moulding aligning device generally is D.C. magnetic field, and wherein D.C. magnetic field mainly is to produce by the closed-loop path that is formed by dc source and coil.Because when magnetic was orientated compression forming, magnetic field orientating and compression forming were carried out simultaneously, under pressure, the density of magnetic is increasing, and the activity space of magnetic is more and more littler, causes magnetic to be reunited and the bridge joint phenomenon thus.And magnetic is reunited and the bridge joint phenomenon can influence the even filling of Magnaglo and cause bigger space on the one hand, make the formed body density after the compression reduce, can not obtain very high magnetic property, the shaping body surface magnetic that obtains after the processing also can correspondingly improve on the other hand, remanent magnetism is stronger, and formed body is difficult to the demoulding.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can reduce remanent magnetism, improves the radial aligning device of anisotropy sintered rare-earth permanent magnetic material of magnetic property.
The utility model solves the problems of the technologies described above the technical scheme that adopts: the radial aligning device of a kind of anisotropy sintered rare-earth permanent magnetic material, comprise Upper Die-sleeve, lower die-sleeve, place the former between described Upper Die-sleeve and the described lower die-sleeve, place the upper punch in the described Upper Die-sleeve, place the low punch in the described lower die-sleeve, place the last plug in the described upper punch, place the following plug in the described low punch, the a pair of dc coil that places described Upper Die-sleeve and the described lower die-sleeve outside with this dc source that dc coil is connected, the pulse power that also is provided with a pair of pulsed coil and is connected with this paired pulses coil, this paired pulses coil is arranged at the upper and lower of described former respectively, described dc source and this are 5000～600000NI to the D.C. magnetic field parameter that dc coil produces, the pulsed magnetic field parameter that the described pulse power and this paired pulses coil produce is 5000～20000000NI, and the continuous impulse of the described pulsed magnetic field frequency that magnetizes is 1～10 time/second.
This paired pulses coil places the inboard of described former.
Be positioned at the lower end of dc coil of top and the upper end of dc coil that is positioned at the below in the described a pair of dc coil and be respectively arranged with the baffle plate that the dc coil with correspondence covers, described baffle plate is made by non-magnet material.
This is respectively arranged with coil substrate to the upper end of the dc coil above being positioned in the dc coil and the lower end of the dc coil that is positioned at the below, and described coil substrate is made by permeability magnetic material.
This outside to dc coil is respectively arranged with the magnetic guiding loop of being made by permeability magnetic material.
This is no more than 10 degree to the angle between the central axis of dc coil and this paired pulses coil.
Compared with prior art, advantage of the present utility model is the pulse power by being provided with a pair of pulsed coil and being connected with this paired pulses coil, this paired pulses coil is arranged at the upper and lower of former respectively, dc source and this are 5000～600000NI to the D.C. magnetic field parameter that dc coil produces, the pulsed magnetic field parameter that the pulse power and this paired pulses coil produce is 5000～20000000NI, the continuous impulse of the pulsed magnetic field frequency that magnetizes is 1～10 time/second, simultaneously magnetic is orientated by D.C. magnetic field and pulsed magnetic field, with respect to existing aligning device, magnetic property can improve 15%～20%, and the surface of the magnetic base behind oriented moulding remanent magnetism can reach below 2 Gausses, and the demoulding is easy;
When pulsed coil places former inboard, shortened the distance between pulsed magnetic field and the magnetic, reduce the decay of pulsed magnetic field, improve orientation effect;
In a pair of dc coil, be positioned at the lower end of dc coil of top and the upper end of dc coil that is positioned at the below and be respectively arranged with the baffle plate that the dc coil with correspondence covers, when baffle plate is made by non-magnet material, can prevent the magnetic field direction diffusion up and down that dc coil produces, improve D.C. magnetic field to the orientation dynamics of magnetic;
When this is positioned at the upper end of dc coil of top in to dc coil and the lower end that is positioned at the dc coil of below is respectively arranged with coil substrate, when coil substrate is made by permeability magnetic material, can produce in the process of D.C. magnetic field at dc coil, make the magnetic line of force produce magnetic loop along coil substrate, improve dc coil to the orientation dynamics of magnetic;
When this outside to dc coil was respectively arranged with the magnetic guiding loop of being made by permeability magnetic material, the D.C. magnetic field that dc coil produces can radially evenly disperse along magnetic guiding loop, made the more effective magnetic orientation that acts on of D.C. magnetic field, improved the uniformity of magnetic orientation;
When this is no more than 10 when spending to the angle between the central axis of dc coil and this paired pulses coil, can avoid the mutual magnetic loss of D.C. magnetic field and pulsed magnetic field, make D.C. magnetic field and pulsed magnetic field perfect adaptation.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the polar plot of D.C. magnetic field and pulsed magnetic field;
Fig. 3 is the polar plot of the alignment magnetic field after D.C. magnetic field and the pulsed magnetic field stack;
Fig. 4 is the magnetic direction figure that radial moulding orientation and product magnetize.
The specific embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in Figure 1, the utility model provides a kind of anisotropy sintered rare-earth permanent magnetic material radial aligning device, comprise Upper Die-sleeve 1, lower die-sleeve 2, place the former 3 between Upper Die-sleeve 1 and the lower die-sleeve 2, place the upper punch 4 in the Upper Die-sleeve 1, place the low punch 5 in the lower die-sleeve 2, place the last plug 6 in the upper punch 4, place the following plug 7 in the low punch 5, the a pair of dc coil 8 that places Upper Die-sleeve 1 and lower die-sleeve 2 outsides with this dc source 9 that dc coil 8 is connected, the pulse power 11 that also is provided with a pair of pulsed coil 10 and is connected with this paired pulses coil 10, this paired pulses coil 10 is arranged at the upper and lower of former 3 respectively, dc source 9 and this are 5000～600000NI(ampere-turn to the D.C. magnetic field parameter that dc coil 8 produces), the pulsed magnetic field parameter that the pulse power 11 and this paired pulses coil 10 produce is 5000～20000000NI(ampere-turn), the continuous impulse of the pulsed magnetic field frequency that magnetizes is 1～10 time/second.
Embodiment one: as shown in Figure 1, the radial aligning device of a kind of anisotropy sintered rare-earth permanent magnetic material, comprise Upper Die-sleeve 1, lower die-sleeve 2, place the former 3 between Upper Die-sleeve 1 and the lower die-sleeve 2, place the upper punch 4 in the Upper Die-sleeve 1, place the low punch 5 in the lower die-sleeve 2, place the last plug 6 in the upper punch 4, place the following plug 7 in the low punch 5, the a pair of dc coil 8 that places Upper Die-sleeve 1 and lower die-sleeve 2 outsides with this dc source 9 that dc coil 8 is connected, the pulse power 11 that also is provided with a pair of pulsed coil 10 and is connected with this paired pulses coil 10, this paired pulses coil 10 is arranged at the upper and lower of former 3 respectively, dc source 9 and this are the 5000NI(ampere-turn to the D.C. magnetic field parameter that dc coil 8 produces), the pulsed magnetic field parameter that the pulse power 11 and this paired pulses coil 10 produce is the 5000NI(ampere-turn), the continuous impulse of the pulsed magnetic field frequency that magnetizes is 1～10 time/second.
In the present embodiment, this paired pulses coil 10 places the inboard of former 3.
In the present embodiment, this is respectively arranged with the baffle plate 12 that the dc coil with correspondence covers to the lower end of the dc coil that is positioned at the top in the dc coil 8 and upper end of dc coil of being positioned at the below, and baffle plate 12 is made by non-magnet material.
In the present embodiment, this is respectively arranged with coil substrate 13 to the upper end of the dc coil that is positioned at the top in the dc coil 8 and the lower end of dc coil that is positioned at the below, and coil substrate 13 is made by permeability magnetic material.
In the present embodiment, this outside to dc coil 8 is respectively arranged with the magnetic guiding loop of being made by permeability magnetic material 14.
In the present embodiment, this is to dc coil 8 and these paired pulses coil 10 coaxial settings.
Embodiment two: present embodiment and embodiment one are basic identical, difference only is that dc source 9 and this are the 600000NI(ampere-turn to the D.C. magnetic field parameter that dc coil 8 produces), the pulsed magnetic field parameter that the pulse power 11 and this paired pulses coil 10 produce is the 20000000NI(ampere-turn), the continuous impulse of the pulsed magnetic field frequency that magnetizes is 10 times/second, and this is 10 degree to the angle between the central axis of dc coil 8 and this paired pulses coil 10.
In the aligning device of the present utility model, by dc source 9 and this D.C. magnetic field intensity that dc coil 8 produces is designated as B
1, the pulsed magnetic field intensity that is produced by the pulse power 11 and this paired pulses coil 10 is designated as B
2, as shown in Figure 2; The magnetic field intensity of aligning device of the present utility model is designated as B, and as shown in Figure 3, wherein B is B
1And B
2Vector and.The one-period of the radial oriented moulding of anisotropy sintered rare-earth permanent magnetic material is t
1To t
6, be t in the cycle
1To t
6In, a whole set of oriented moulding operation is finished in D.C. magnetic field and pulsed magnetic field stack.
The magnetizing direction of radial moulding orientation and product as shown in Figure 4.
Claims (6)
1. radial aligning device of anisotropy sintered rare-earth permanent magnetic material, comprise Upper Die-sleeve, lower die-sleeve, place the former between described Upper Die-sleeve and the described lower die-sleeve, place the upper punch in the described Upper Die-sleeve, place the low punch in the described lower die-sleeve, place the last plug in the described upper punch, place the following plug in the described low punch, the a pair of dc coil that places described Upper Die-sleeve and the described lower die-sleeve outside with this dc source that dc coil is connected, it is characterized in that also being provided with a pair of pulsed coil and reach the pulse power that is connected with this paired pulses coil, this paired pulses coil is arranged at the upper and lower of described former respectively, described dc source and this are 5000～600000NI to the D.C. magnetic field parameter that dc coil produces, the pulsed magnetic field parameter that the described pulse power and this paired pulses coil produce is 5000～20000000NI, and the continuous impulse of the described pulsed magnetic field frequency that magnetizes is 1～10 time/second.
2. the radial aligning device of anisotropy sintered rare-earth permanent magnetic material according to claim 1 is characterized in that this paired pulses coil places the inboard of described former.
3. the radial aligning device of anisotropy sintered rare-earth permanent magnetic material according to claim 1 and 2, it is characterized in that being positioned in the described a pair of dc coil lower end of dc coil of top and the upper end that is positioned at the dc coil of below and be respectively arranged with the baffle plate that the dc coil with correspondence covers, described baffle plate is made by non-magnet material.
4. the radial aligning device of anisotropy sintered rare-earth permanent magnetic material according to claim 1 and 2, it is characterized in that this is respectively arranged with coil substrate to the upper end of the dc coil above being positioned in the dc coil and the lower end of the dc coil that is positioned at the below, described coil substrate is made by permeability magnetic material.
5. the radial aligning device of anisotropy sintered rare-earth permanent magnetic material according to claim 1 and 2 is characterized in that this outside to dc coil is respectively arranged with the magnetic guiding loop of being made by permeability magnetic material.
6. the radial aligning device of anisotropy sintered rare-earth permanent magnetic material according to claim 1 and 2 is characterized in that this is no more than 10 degree to the angle between the central axis of dc coil and this paired pulses coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113165 CN203140772U (en) | 2013-03-13 | 2013-03-13 | Anisotropic sintering rare earth permanent magnetic material radial orientation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113165 CN203140772U (en) | 2013-03-13 | 2013-03-13 | Anisotropic sintering rare earth permanent magnetic material radial orientation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140772U true CN203140772U (en) | 2013-08-21 |
Family
ID=48968328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113165 Expired - Lifetime CN203140772U (en) | 2013-03-13 | 2013-03-13 | Anisotropic sintering rare earth permanent magnetic material radial orientation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128286A (en) * | 2013-03-13 | 2013-06-05 | 黄可可 | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof |
| CN106077635A (en) * | 2016-06-30 | 2016-11-09 | 成都八九九科技有限公司 | A kind of equipment improving the rare earth permanent-magnetic material pressing under magnetic field degree of orientation and the manufacture method of permanent magnet material |
| CN109346309A (en) * | 2018-11-27 | 2019-02-15 | 杭州科德磁业有限公司 | It is a kind of for being molded the electromagnetism oriented moulding system of anisotropic bonded magnet |
-
2013
- 2013-03-13 CN CN 201320113165 patent/CN203140772U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128286A (en) * | 2013-03-13 | 2013-06-05 | 黄可可 | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof |
| CN103128286B (en) * | 2013-03-13 | 2015-03-04 | 黄可可 | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof |
| CN106077635A (en) * | 2016-06-30 | 2016-11-09 | 成都八九九科技有限公司 | A kind of equipment improving the rare earth permanent-magnetic material pressing under magnetic field degree of orientation and the manufacture method of permanent magnet material |
| CN109346309A (en) * | 2018-11-27 | 2019-02-15 | 杭州科德磁业有限公司 | It is a kind of for being molded the electromagnetism oriented moulding system of anisotropic bonded magnet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103128286B (en) | Anisotropism sintering rare earth permanent magnetic material radial orientation device and orientation method thereof | |
| CN208004792U (en) | A kind of compacting tool set preparing neodymium iron boron multi-pole magnet-ring | |
| CN103310970B (en) | The preparation method of permanent-magnetic ring of radial orientation and radial orientation device thereof | |
| CN203140772U (en) | Anisotropic sintering rare earth permanent magnetic material radial orientation device | |
| CN204160687U (en) | NdFeB material Lijection orientation machine | |
| CN102416471A (en) | Pressing mold for manufacturing amplitude/multi-polar oriented whole permanent magnetic ring | |
| CN103111618B (en) | Device of neodymium iron boron automatic suppressing orientation forming and method | |
| CN102360914B (en) | Method for manufacturing annular magnet with radial magnetic orientation | |
| CN101118807B (en) | Magnetic aligning device of aeolotropism adhesive bonding or sintered multipolar annular magnetic body | |
| CN104190925A (en) | Compression molding die | |
| CN103128283B (en) | Forming die and method for preparing pressed billet of non-oriented neodymium iron boron cylindrical magnet | |
| CN207268968U (en) | A kind of continuous magnetizer of magneto | |
| CN102847939B (en) | Magnetic material powder forming mold with non-magnetic isolating structure | |
| CN204486779U (en) | A kind of mould preparing ring-shaped sintered neodymium-iron-boron magnet | |
| CN208290142U (en) | The radial 12 pole magnet ring forming moulds tool of permanent-magnet ferrite | |
| CN201707998U (en) | Pulse magnetic field device for pressing permanent magnetic product | |
| CN104867671A (en) | Production method of NdFeB (Neodymium Iron Boron) radiation ring | |
| CN203437641U (en) | Orientation pressing device of radiation ring with large height-diameter ratio | |
| CN206357690U (en) | Extrados is the magnetic shoe molding die of working face | |
| CN202804184U (en) | Neodymium iron boron magnetic body mold | |
| CN104505205B (en) | Rare earth permanent magnetic material molding equipment and molding method | |
| CN202779792U (en) | Forming die with non-magnetic-conductive isolation structure for magnetic material powder | |
| CN205763841U (en) | A kind of anisotropy quadrupole magnet ring hot pressing oriented moulding set of molds | |
| CN105666936A (en) | Die for manufacturing magnet ring | |
| CN101879594B (en) | Warm compaction method and die for preparing integrated permanent magnetic ring with radial structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151216 Address after: 315135, Shiqiao industrial area, Yunlong Town, Ningbo, Yinzhou District, Zhejiang Patentee after: NINGBO CANMANG TECHNOLOGY Co.,Ltd. Address before: 315135, Shiqiao industrial area, Yunlong Town, Ningbo, Yinzhou District, Zhejiang Patentee before: Huang Keke |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |