CN102360915B - Equipment for manufacturing magnet with radialized magnetic aligning - Google Patents
Equipment for manufacturing magnet with radialized magnetic aligning Download PDFInfo
- Publication number
- CN102360915B CN102360915B CN 201110227855 CN201110227855A CN102360915B CN 102360915 B CN102360915 B CN 102360915B CN 201110227855 CN201110227855 CN 201110227855 CN 201110227855 A CN201110227855 A CN 201110227855A CN 102360915 B CN102360915 B CN 102360915B
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- Prior art keywords
- magnetic
- radial
- magnetic field
- die cavity
- equipment
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 111
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000033001 locomotion Effects 0.000 abstract description 5
- 239000006247 magnetic powder Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000005347 demagnetization Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000828 alnico Inorganic materials 0.000 description 1
- -1 aluminium-nickel-cobalt Chemical compound 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Abstract
The invention provides equipment for manufacturing a magnet with radialized magnetic aligning, which comprises a pressure head (15) and a die cavity (11) which is used for accommodating magnetic powder. The equipment for manufacturing the magnet with the radialized magnetic aligning is characterized by also comprising a device (10) and a moving component (16), wherein the device (10) is arranged around the die cavity and is used for providing a radialized magnetic field; the device (10) providing the radialized magnetic field is driven by the moving component (16) to do a reciprocating motion along the die cavity (11); an inner magnetic pole (12) used for magnetic conductance is arranged in the die cavity (11); and the inner magnetic pole (12) is arranged in the center of the radialized magnetic field. By adopting the equipment for manufacturing the magnet with the radialized magnetic aligning, the disadvantage that the surface field of the radial anisotropic magnet produced in the prior art is unevenly distributed along the axial direction and/or circumferential direction can be effectively eliminated.
Description
Technical field
The present invention relates to a kind of equipment of making magnet, particularly, relate to a kind of equipment that magnetic aligning is radial magnet of making.
Background technology
The manufacture process of anisotropy Sintered NdFeB magnet is as follows: batching, powder process, die mould, sintering, rear processing.Wherein the anisotropy of magnet is produced by alignment magnetic field in the die mould process.
At present, the method for making circular radial anisotropic magnet has as follows:
1) as shown in Figure 1, in the die mould process, magnetic is orientated along a certain integrated radial, produces the radially circular or cylindrical magnet of orientation.Adopt the circular or cylindrical magnet of the method preparation, better along the degree of orientation at alignment magnetic field direction place, and be almost 0 along the degree of orientation perpendicular to the alignment magnetic field place, thus the table field that makes magnet skewness along the circumferential direction.
2) as shown in Figure 2, adopt the magnetic field of two homopolarities to repel, produce radial magnetic field, magnetic is orientated.Yet the radial magnetic field that the method produces is the strongest at the middle part of circular or cylindrical magnet, two ends a little less than, the radial annulus or the cylindrical magnet that namely adopt the method to make, the middle part degree of orientation is better vertically, and the two ends degree of orientation is relatively poor, thus the table field that makes magnet skewness vertically.
Summary of the invention
Technical scheme of the present invention is as follows:
A kind of is the equipment of radial magnet for the manufacture of magnetic aligning, comprise: pressure head 15, the die cavity 11 that is used for accommodating magnetic, it is characterized in that: also comprise the device that radial magnetic field is provided 10 around the die cavity setting, and moving component 16, described moving component 16 the described device 10 in radial magnetic field that provides is provided moves back and forth along die cavity 11, is provided with the internal magnetic pole 12 for magnetic conduction in the die cavity 11, and described internal magnetic pole 12 is arranged on the center in radial magnetic field.
Particularly, the described device 10 in radial magnetic field that provides is made of the needle-like magnetic conductive rod 13 of closely arranging radially that arranges in a plane, and described needle-like magnetic conductive rod 13 is used for the guiding externally-applied magnetic field and forms radial magnetic field.
Particularly, described externally-applied magnetic field is provided by the hot-wire coil 14 that is wrapped on the needle-like magnetic conductive rod, and perhaps, described externally-applied magnetic field is provided by permanent magnet or electromagnet.
Particularly, the described device in radial magnetic field that provides is along die cavity setting at least 2 covers.
Preferably, the diameter of the close die cavity end of described needle-like magnetic conductive rod is less than the diameter of the other end.
Particularly, described moving component is by slider-crank mechanism or cam mechanism.
Adopting manufacturing magnetic aligning of the present invention is the equipment of radial magnet, can effectively overcome the radial anisotropic of producing in the prior art magnet the table field vertically and/or circumferencial direction shortcoming pockety.
Description of drawings
Fig. 1: the schematic diagram that radially carries out magnetic aligning in the prior art;
Fig. 2: the method for available technology adopting homopolar-repulsion is carried out the schematic diagram of magnetic aligning;
Fig. 3: equipment of the present invention is along the axial schematic diagram of die cavity;
Fig. 4: needle-like magnetic conductive rod schematic diagram among the present invention;
Fig. 5: equipment of the present invention is along die cavity schematic diagram radially;
Reference numeral:
10: the device that radial magnetic field is provided; 11: the die cavity of accommodating magnetic; 12: internal magnetic pole; 13: the needle-like magnetic conductive rod;
14: be wrapped in the coil on the needle-like magnetic conductive rod; 15: pressure head; 16: moving component; 17: cam mechanism.
Embodiment:
Embodiment 1
As shown in Figure 5, making magnetic aligning is the equipment of radial ring magnet, comprise: pressure head 15, the circular die cavity 11 that is used for accommodating magnetic, the device 10 in radial magnetic field is provided, it is made of the needle-like magnetic conductive rod 13 of arranging radially that arranges in a plane, needle-like magnetic conductive rod 13 is used for the guiding externally-applied magnetic field and forms radial magnetic field, externally-applied magnetic field is provided by the coil 14 that is wrapped on the needle-like magnetic conductive rod, cam mechanism 17 drives and provides the device 10 in radial magnetic field along the die cavity reciprocating motion, but the newel 12 of circular die cavity adopts the material of magnetic conduction to make, can play the effect of internal magnetic pole 12, wherein cam mechanism 17 adopts the usual cam mechanism that adopts to get final product.
Adopting this equipment to prepare magnetic aligning is that the process of radial annular magnetic is as follows: the magnetic of packing in the die cavity 11, give the coil that is wrapped on the needle-like magnetic conductive rod 14 energisings, starting cam mechanism 17 simultaneously, drive provides the device 10 in radial magnetic field along die cavity 11 reciprocating motions, in reciprocating process, pressure head 15 is exerted pressure to magnetic, finish die mould, afterwards, pass into a reverse current for again the coil 14 be wrapped on the needle-like magnetic conductive rod 13, thereby produce the magnetic field opposite with alignment magnetic field, the blank of finishing behind the die mould is demagnetized, after demagnetization is finished, take out blank.
Embodiment 2
As shown in Figure 5, making magnetic aligning is the equipment of radial ring magnet, comprise: pressure head 15, the die cavity 11 that is used for accommodating magnetic, the device 10 in radial magnetic field is provided, it is made of the needle-like magnetic conductive rod of arranging radially that arranges in a plane, the needle-like magnetic conduction is used for the guiding externally-applied magnetic field and forms radial magnetic field, externally-applied magnetic field is provided by electromagnet or permanent magnet, slider-crank mechanism drives provides the device 10 in radial magnetic field along die cavity 11 reciprocating motions, wherein slider-crank mechanism adopts usual slider-crank mechanism to get final product, and is not shown in the accompanying drawings.
It is that the process of radial annular magnetic is as follows that this equipment of employing prepares magnetic aligning: the magnetic of packing in the die cavity 11, pass into electric current to electromagnet, allow electromagnet near magnetic conductive rod, while cranking lever slide block mechanism, drive provides the device in radial magnetic field along the die cavity reciprocating motion, in reciprocating process, pressure head is exerted pressure to magnetic, finish die mould, afterwards, pass into a reverse current to electromagnet again, thereby produce the magnetic field opposite with alignment magnetic field, the blank of finishing behind the die mould is demagnetized, after demagnetization is finished, take out blank.
Noticeable is:
Magnetic in above-described embodiment can be NdFeB magnetic powder, ferromagnetic oxide powder, samarium-cobalt magnetic powder, aluminium-nickel-cobalt magnetic powder etc.The device that radial magnetic field is provided in above-described embodiment can be for a plurality of, and as shown in Figure 5, the device that radial magnetic field wherein is provided is 3.
The above-mentioned interior shape of executing the die cavity in the example is not limited to circular, can also be other shapes, and is for example square, and the square blank of a through hole so just can the production center be arranged.
Claims (6)
1. one kind is the equipment of radial magnet for the manufacture of magnetic aligning, comprise: pressure head (15), the die cavity (11) that is used for accommodating magnetic, it is characterized in that: also comprise the device that radial magnetic field is provided (10) around the die cavity setting, and moving component (16), described moving component (16) the described device (10) in radial magnetic field that provides is provided moves back and forth along die cavity (11), be provided with the internal magnetic pole (12) for magnetic conduction in the die cavity (11), described internal magnetic pole (12) is arranged on the center in radial magnetic field, the described device (10) in radial magnetic field that provides is made of the needle-like magnetic conductive rod (13) of closely arranging radially that arranges in a plane, and described needle-like magnetic conductive rod (13) is used for the guiding externally-applied magnetic field and forms radial magnetic field.
2. as claimed in claim 1 is the equipment of radial magnet for the manufacture of magnetic aligning, it is characterized in that, described externally-applied magnetic field is provided by the hot-wire coil (14) that is wrapped on the needle-like magnetic conductive rod.
3. as claimed in claim 1 is the equipment of radial magnet for the manufacture of magnetic aligning, it is characterized in that described externally-applied magnetic field is provided by permanent magnet or electromagnet.
4. as claimed in claim 1 is the equipment of radial magnet for the manufacture of magnetic aligning, it is characterized in that, the described device in radial magnetic field that provides is along die cavity setting at least 2 covers.
As among the claim 1-4 arbitrary described be the equipment of radial magnet for the manufacture of magnetic aligning, it is characterized in that described needle-like magnetic conductive rod is near the diameter of the die cavity end diameter less than the other end.
6. as claimed in claim 5 is the equipment of radial magnet for the manufacture of magnetic aligning, it is characterized in that, described moving component (16) is slider-crank mechanism or cam mechanism (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110227855 CN102360915B (en) | 2011-08-10 | 2011-08-10 | Equipment for manufacturing magnet with radialized magnetic aligning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110227855 CN102360915B (en) | 2011-08-10 | 2011-08-10 | Equipment for manufacturing magnet with radialized magnetic aligning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360915A CN102360915A (en) | 2012-02-22 |
| CN102360915B true CN102360915B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110227855 Expired - Fee Related CN102360915B (en) | 2011-08-10 | 2011-08-10 | Equipment for manufacturing magnet with radialized magnetic aligning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360915B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478715Y (en) * | 2001-04-05 | 2002-02-27 | 北京大圣格尔冶金设备有限公司 | Four-cylinder multi-purpose rare-earth permanent-magnet radiation orientation magnetic field automatic press |
| 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 |
-
2011
- 2011-08-10 CN CN 201110227855 patent/CN102360915B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478715Y (en) * | 2001-04-05 | 2002-02-27 | 北京大圣格尔冶金设备有限公司 | Four-cylinder multi-purpose rare-earth permanent-magnet radiation orientation magnetic field automatic press |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102360915A (en) | 2012-02-22 |
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Owner name: ZHOU DAPENG Free format text: FORMER OWNER: ZHANG SHUHUA Effective date: 20130122 |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG SHUHUA TO: ZHOU DAPENG Free format text: CORRECT: ADDRESS; FROM: 100025 CHAOYANG, BEIJING TO: 100085 HAIDIAN, BEIJING |
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Effective date of registration: 20130122 Address after: 100085 Beijing Haidian District, xi'erqi Lingxiu new Silicon Valley B District No. 42 building 3 unit 102 Applicant after: Zhou Dapeng Address before: 100025 Beijing city Chaoyang District Yaojieyuan West Hospital No. 5 No. 17 Building 5 unit 602 Applicant before: Zhang Shuhua |
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Addressee: Zhou Dapeng Document name: Notification of Passing Examination on Formalities |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190810 |