CN104465061B - Pole anisotropy annular magnetic spar making method and pressurization orientation mould structure thereof - Google Patents
Pole anisotropy annular magnetic spar making method and pressurization orientation mould structure thereof Download PDFInfo
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- CN104465061B CN104465061B CN201310421306.XA CN201310421306A CN104465061B CN 104465061 B CN104465061 B CN 104465061B CN 201310421306 A CN201310421306 A CN 201310421306A CN 104465061 B CN104465061 B CN 104465061B
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Abstract
The present invention is manufacture method and the pressurization orientation mould structure thereof of a kind of pole anisotropy annular Magnetitum, it is intended to overcomes tradition Magnetitum in the fabrication process, causes polygonal profile because shrinkage factor is different, causes follow-up grinding length in man-hour, the shortcoming of material unaccounted-for (MUF).The processing procedure of Magnetitum is that powder body first utilizes mould pressurizing molding and magnetic pole are oriented to annular idiosome, again idiosome is sintered step, the position shrinkage factor that idiosome has magnetic pole orientation when sintering is higher, idiosome profile after sintering forms polygon, therefore space that the annular die cavity of mould is configured to correspond to magnetic pole orientation position by the present invention in advance is wider, space corresponding to position, magnetic pole boundary is narrower, after making pressurization, idiosome can form corresponding contour shape, this idiosome is allowed i.e. can relatively to level off to proper circle after follow-up sintering completes, so reduce and grind man-hour and material unaccounted-for (MUF).
Description
Technical field
The present invention relates to manufacture method and the mould structure thereof of a kind of pole anisotropy annular Magnetitum, espespecially a kind of energy
The most in the fabrication process, improve the out of roundness of annular idiosome, grind man-hour and the manufacture of material unaccounted-for (MUF) to reduce
Method and mould structure thereof.
Background technology
Pole anisotropy annular Magnetitum is mainly used on motor, the most small motor, core free motor, brushless
Motor, stepper motor etc., according to the difference of motor kind, can be as the outer rotor of motor movement, internal rotor
Or inside and outside permanent-magnet type stator etc..
Existing pole anisotropy annular Magnetitum forms with powder metallurgy one sintering, and its flux density is much larger than tradition
Cemented type multipole cylindrical shape Magnetitum, quality is the most relatively stable.Its processing procedure generally comprises (1) powder body processing procedure, (2)
Extrusion forming and magnetic pole orientation, (3) sintering, (4) are ground and (5) magnetize the steps such as detection, the most simply say
Bright each step:
(1) powder body processing procedure: the raw material of Magnetitum is a granulated into powder body, and powder body is carried out suitable particle footpath,
Grain intensity, mobility, can the screening of regiospecific, then measure mixing to scale.
(2) extrusion forming and magnetic pole orientation: powder body mixing completed gives after inserting the mould with annular die cavity
With extrusion forming for annular idiosome, and bestow axial current formation multipole magnetic in the inner edge of annular die cavity or outer rim
, so that idiosome inner edge or outer rim are produced magnetic pole orientation.
(3) sintering: utilize high temperature stove to sinter the annular idiosome after pressurization and magnetic pole orientation, make the crystalline substance of inside
Grain is fine and close with crystal boundary, so increases intensity and the hardness of idiosome.General in sintering process, the arrangement of crystal grain
Change can be automatically generated because of magnetic field orientation, make the crystallization magnetic anomaly tropism axle bending direction along the magnetic line of force of crystal grain
Arrangement, allows the annular idiosome shrinkage factor in magnetic pole orientation position higher than position, magnetic pole boundary, causes idiosome profile
Become polygon.If as it is shown in figure 1, external diameter orientation number to be manufactured is the Magnetitum of the ends of the earth, then the magnetic of idiosome 1
Orientation position, pole can significantly be shunk after sintering, makes outline form octagon；If as in figure 2 it is shown, being intended to
Manufacturing internal diameter orientation number is the Magnetitum of six types of severe debility disease, then idiosome 1 magnetic pole orientation position is after sintering, internal diameter profile meeting
Form hexagon.
(4) grind: because idiosome profile can form polygon with pole orientation quantity after sintering, annular Magnetitum is big again
Be used in motor rotor more, its out of roundness relation motor rotor rotate time smooth degree, therefore must will sintering after in
Polygonal annular idiosome is ground processing, grinds to form close to true by processing machines such as grinding machine, burr removing machines
The profile of circle.
(5) magnetize detection: the annular idiosome after grinding again through operation of magnetizing, visual examination, sampling check,
The flow processs such as test, clean, packaging, become pole anisotropy annular Magnetitum.
In above-mentioned sintering process, due to the annular idiosome shrinkage factor in magnetic pole orientation position Yu position, magnetic pole boundary
Very different, makes follow-up being ground to form by this polygon annular idiosome expend man-hour close to during proper circle, and need to grind
Grind off except sizable volume, cause waste of material and increase grinding time cost, furthermore, grind excess also
It is easily reduced magnetic force, makes the finished product after grinding produce larger difference with predetermined magnetism intensity, even cannot accord with
Close product demand.
Therefore, annular idiosome how is improved in sintering process, because of magnetic pole orientation position and position, magnetic pole boundary
Shrinkage factor difference is excessive, causes follow-up increasing to grind the shortcoming such as man-hour, waste material cost, will be the present invention
The problem that people to be solved.
Summary of the invention
It is an object of the invention to provide a kind of application at the manufacture method of pole anisotropy annular Magnetitum and mould thereof
Structure, the space that the annular die cavity of mould is configured to correspond to magnetic pole orientation position by its method is wider, corresponding
Narrower in the space of position, magnetic pole boundary, after making pressurization, idiosome can form corresponding contour shape, allows idiosome
After follow-up sintering complete, i.e. can relatively level off to proper circle, so reduce and grind man-hour and material unaccounted-for (MUF), with gram
Clothes tradition Magnetitum in the fabrication process, forms polygonal profile because shrinkage factor is different, causes follow-up grinding
Man-hour length, the shortcoming of material unaccounted-for (MUF).
For reaching above-mentioned purpose, the manufacture method of pole of the present invention anisotropy annular Magnetitum, powder body is inserted and has
Extrusion forming is given for annular idiosome after the mould of annular die cavity, and in the annular outer rim of die cavity or inner edge
Bestow axial current formed multipole magnetic field so that idiosome is carried out magnetic pole orientation, make this idiosome possess external diameter orientation or
Sintered after internal diameter orientation, then the idiosome after sintering ground, it is characterised in that:
Annular idiosome after described extrusion forming and magnetic pole orientation is corresponding to internal diameter orientation or external diameter orientation position
Meat thicker, relatively thin corresponding to the meat thickness of position, magnetic pole boundary, make follow-up to be sintered this idiosome during engineering
In the magnetic pole orientation position that shrinkage factor is higher, the magnetic pole boundary position relatively low with shrinkage factor, two positions
Thickness after sintering can be closer to each other and level off to proper circle, and then reduces follow-up grinding man-hour and material damages
Lose.
According to above-mentioned manufacture method, bestow axial current in the inner edge of the annular die cavity of mould and form multipole magnetic field,
Just the pole anisotropy annular Magnetitum of internal diameter orientation can be produced.Therefore the present invention separately provides the pole of a kind of internal diameter orientation
Anisotropy annular Magnetitum pressurization orientation mould structure, its structure comprises: one has annular die cavity and multipole magnetic field
Middle mold, one group can in die cavity in opposite directions displacement pressurization upper mold and lower mold, powder body inserts the annular of middle mold
In die cavity, powder body can be made to be pressed into annular idiosome by upper mold and lower mold displacement in opposite directions, and by being positioned at
The multipole magnetic field of die cavity inner edge produces magnetic pole orientation on idiosome, it is characterised in that:
The annular die cavity inner edge of middle mold is provided with a lining, and this lining is at the thickness corresponding to multipole magnetic field position relatively
Thin, position, boundary, the magnetic field thickness corresponding to multipole magnetic field is relatively thick, makes the ring after pressurization and magnetic pole orientation
Shape idiosome, is more than the thickness of position, magnetic pole boundary at the thickness corresponding to magnetic pole orientation position.
The detailed description of the invention of each element further explained below:
During enforcement, this middle mold comprises an outer mould base with axial through bore, and one is axially disposed within perforation
Interior mould bar, between described perforation inner edge and interior mould bar outer rim formed annular die cavity；In described upper mold and lower mold
Centre is provided with the axially extending bore worn for interior mould bar, enables upper mold and lower mold to guide and position in opposite directions along interior mould bar
Move pressurization.
During enforcement, described interior mould bar outer peripheral edge is provided with a plurality of axial iron core, and each iron core is wound around conductor wire
Circle forms multipole magnetic field, and lining is arranged on multipole magnetic field outer rim, the axially extending bore inner edge profile of aforementioned upper mold
Corresponding with lining outer margin contour.Furthermore, described lining at the thinner thickness corresponding to multipole magnetic field position,
Position, boundary, magnetic field thickness corresponding to multipole magnetic field is relatively thick, makes die cavity correspond to multipole magnetic field position
Space is wider, and the space corresponding to position, boundary, magnetic field is narrower.
During enforcement, upper die side wall is provided with at least one steam vent, allows upper mold relative to lower mold displacement to powder pressing
Time, the air in powder body can be discharged from steam vent, allows the pressurized solid shape of powder body circularize idiosome.
Furthermore, according to previous building methods, the outer rim at the annular die cavity of mould is bestowed axial current and is formed many
Pole field, just can produce the pole anisotropy annular Magnetitum of external diameter orientation, therefore the present invention provides another kind of external diameter
The pole anisotropy annular Magnetitum pressurization orientation mould structure of orientation, this structure comprises one and has annular die cavity with many
The middle mold of pole field, one group can in die cavity in opposite directions displacement pressurization upper mold and lower mold, powder body inserts middle mold
Annular die cavity in, powder body can be made to be pressed into annular idiosome by upper mold and lower mold displacement in opposite directions, and lead to
Cross the multipole magnetic field being positioned at die cavity outer rim on idiosome, produce magnetic pole orientation, it is characterised in that:
The annular die cavity outer rim of middle mold is provided with a lining, and this lining is at the thickness corresponding to multipole magnetic field position relatively
Thin, position, boundary, the magnetic field thickness corresponding to multipole magnetic field is relatively thick, makes the ring after pressurization and magnetic pole orientation
Shape idiosome, is more than the thickness of position, magnetic pole boundary at the thickness corresponding to magnetic pole orientation position.
The detailed description of the invention of each element further explained below:
During enforcement, described middle mold comprises an outer mould base with axial through bore, and one is axially disposed within perforation
Interior interior mould bar, forms annular die cavity between described perforation inner edge and interior mould bar outer rim；Described upper mold and lower mold
Central authorities are provided with the axially extending bore worn for interior mould bar, enable upper mold with lower mold along the guiding of interior mould bar in opposite directions
Displacement is pressurizeed.
During enforcement, described perforation inner peripheral is provided with a plurality of axial iron core, and each iron core is wound around conductive coil
Form multipole magnetic field, and lining is arranged on multipole magnetic field inner edge, aforementioned upper mold outline and lining Internal periphery phase
Corresponding.Furthermore, described lining is at the thinner thickness corresponding to multipole magnetic field position, corresponding to multipole magnetic field
Position, boundary, magnetic field thickness is relatively thick, makes die cavity correspond to the space of multipole magnetic field position wider, corresponds to
The space of position, boundary, magnetic field is narrower.
During enforcement, upper die side wall is provided with at least one steam vent, allows upper mold relative to lower mold displacement to powder pressing
Time, the air in powder body can be discharged from steam vent, allows the pressurized solid shape of powder body circularize idiosome.
Compared to prior art, annular die cavity is configured to correspond to the space of magnetic pole orientation position relatively by the present invention
Width, the space corresponding to position, magnetic pole boundary is narrower, and after making pressurization, idiosome can form corresponding profile structure,
Then this idiosome i.e. can relatively level off to proper circle after follow-up sintering completes, and so reduces and grinds man-hour and material damages
Lose, overcome tradition Magnetitum in the fabrication process, form polygonal profile, after causing because shrinkage factor is different
Continuous grinding length in man-hour, the shortcoming of material unaccounted-for (MUF).
Accompanying drawing explanation
Fig. 1 be existing external diameter orientation number be the annular idiosome schematic perspective view of the ends of the earth；
Fig. 2 be existing internal diameter orientation number be the annular idiosome schematic perspective view of six types of severe debility disease；
Fig. 3 is the schematic flow sheet of the pole anisotropy annular magnetic spar making method of the present invention；
Fig. 4 is the mould perspective exploded view of the internal diameter orientation of the present invention；
Fig. 5 is the mould structure schematic diagram of the internal diameter orientation of the present invention；
Fig. 6 is the annular idiosome shaping schematic view () of the internal diameter orientation of the present invention；
Fig. 7 is the annular idiosome shaping schematic view (two) of the internal diameter orientation of the present invention；
Fig. 8 is coffin set and the annular idiosome location diagram of the internal diameter orientation of the present invention；
Fig. 9 is the stereo appearance figure of the internal diameter orientation annular idiosome of the present invention；
Figure 10 is the mould perspective exploded view of the external diameter orientation of the present invention；
Figure 11 is the mould structure schematic diagram of the external diameter orientation of the present invention；
Figure 12 is the annular idiosome shaping schematic view () of the external diameter orientation of the present invention；
Figure 13 is the annular idiosome shaping schematic view (two) of the external diameter orientation of the present invention；
Figure 14 is coffin set and the annular idiosome location diagram of the external diameter orientation of the present invention；
Figure 15 is the stereo appearance figure of the external diameter orientation annular idiosome of the present invention.
Description of reference numerals: A powder body processing procedure；B extrusion forming and magnetic pole orientation；C sinters；D grinds；E
Magnetize detection；1 idiosome；10 middle molds；11 perforation；12 outer mould bases；Mould bar in 13；131 through holes；On 20
Mould；21 steam vents；30 lower molds；40 annular die cavitys；50 multipole magnetic fields；51 magnetic fields have a common boundary；60 idiosomes；
61 magnetic pole orientations；62 magnetic poles have a common boundary；70 linings.
Detailed description of the invention
Based on the following the technological means of the present invention, list the detailed description of the invention being suitable to the present invention, and coordinate
Graphic explanation is rear:
As it is shown on figure 3, the manufacturing step of the manufacture method of pole anisotropy annular Magnetitum is powder body processing procedure A, adds
Molded and magnetic pole orientation B, sintering C, grind D and the detection E etc. that magnetizes.
As shown in Figure 4, Figure 5, the pole anisotropy annular Magnetitum pressurization orientation mould structure of described internal diameter orientation,
Comprising middle mold 10 and upper mold 20 and a lower mold 30, described middle mold 10 has annular die cavity 40 He
Multipole magnetic field 50.As shown in Figure 6, Figure 7, aforementioned upper mold 20 can in die cavity 40 in opposite directions with lower mold 30
Displacement is pressurizeed, and is filled with powder body in the annular die cavity 40 of described middle mold 10, by upper mold 20 and lower mold 30
Displacement can make powder body be pressed into annular idiosome 60 in opposite directions, and by being positioned at the multipole magnetic field of die cavity 40 inner edge
50 produce magnetic pole orientation 61 on idiosome 60.
As shown in Figure 6 to 8, annular die cavity 40 inner edge of middle mold 10 is provided with a lining 70, this lining 70
At the thinner thickness corresponding to multipole magnetic field 50 position, have a common boundary 51 positions corresponding to the magnetic field of multipole magnetic field 50
Thickness is relatively thick, makes the annular idiosome 60 after pressurization and magnetic pole orientation, corresponding to magnetic pole orientation 61 position
Thickness have a common boundary the thickness of 62 positions more than magnetic pole, allow follow-up sintering time this idiosome 60 higher in shrinkage factor
Magnetic pole orientation 61 position, the magnetic pole relatively low with shrinkage factor has a common boundary 62 positions, and two positions are after sintering
Thickness can be the most closer to each other and level off to proper circle, and then reduce follow-up grinding man-hour and material
Loss.
As shown in Fig. 5, Fig. 6, Fig. 8, this middle mold 10 comprises an outer mould base 12 with axial through bore 11,
And one be axially disposed within the interior mould bar 13 in perforation 11, described perforation 11 inner edge and interior mould bar 13 outer rim it
Between formed annular die cavity 40；Described upper mold 20 and lower mold 30 central authorities are provided with axially leads to for what interior mould bar 13 wore
Hole 131, makes upper mold 20 and lower mold 30 can guide along interior mould bar 13 and displacement pressurization in opposite directions.
During enforcement, described interior mould bar 13 outer peripheral edge is provided with a plurality of axial iron core, and each iron core is wound around conduction
Coil forms multipole magnetic field 50, and lining 70 is arranged on multipole magnetic field 50 outer rim, aforementioned upper mold 20 axial
Through hole 131 inner edge profile is corresponding with lining 70 outer margin contour.Furthermore, described lining 70 is corresponding to many
The thinner thickness of pole field 50 position, relatively thick corresponding to the have a common boundary thickness of 51 positions of magnetic field, make die cavity
40 is wider corresponding to the space of multipole magnetic field 50 position, narrower corresponding to the have a common boundary space of 51 positions, magnetic field.
During enforcement, upper mold 20 wall is provided with at least one steam vent 21, allows upper mold 20 relative to lower mold 30 displacement
During to powder pressing, the air in powder body can be discharged from steam vent 21, allows powder body pressurized solid shape cyclization
Shape idiosome 60.
Another embodiment as shown in Figure 10, Figure 11, is the pole anisotropy annular Magnetitum pressurization orientation of external diameter orientation
Mould structure, comprises middle mold 10 and upper mold 20 and a lower mold 30, and described middle mold 10 has annular
Die cavity 40 and multipole magnetic field 50.As shown in Figure 12 to Figure 14, aforementioned upper mold 20 can be at mould with lower mold 30
Displacement pressurization in opposite directions in cave 40；Described powder body is inserted in the annular die cavity 40 of middle mold 10, by upper mold 20
Powder body can be made to be pressed into annular idiosome 60 with lower mold 30 displacement in opposite directions, and by being positioned at die cavity 40 outer rim
Multipole magnetic field 50 on idiosome 60, produce magnetic pole orientation 61.
Annular die cavity 40 outer rim of described middle mold 10 is provided with a lining 70, and this lining 70 is corresponding to multipole magnetic
The thinner thickness of 50 positions, relatively thick corresponding to the magnetic field of the multipole magnetic field 50 51 position thickness that have a common boundary,
Make the annular idiosome 60 after pressurization and magnetic pole orientation, at the thickness corresponding to magnetic pole orientation 61 position more than magnetic pole
Have a common boundary the thickness of 62 positions, allow follow-up sintering time this idiosome 60 in higher magnetic pole orientation 61 position of shrinkage factor,
The magnetic pole relatively low with shrinkage factor has a common boundary 62 positions, and two positions thickness after sintering can be such as Figure 15
Shown in closer to each other and level off to proper circle, and then reduce follow-up grinding man-hour and material unaccounted-for (MUF).
As shown in Figure 10, Figure 11, Figure 14, described middle mold 10 comprises an external mold with axial through bore 11
Seat 12, and one be axially disposed within the interior mould bar 13 in perforation 11, described perforation 11 inner edge and interior mould bar 13
Annular die cavity 40 is formed between outer rim；Described upper mold 20 and lower mold 30 central authorities are provided with and supply interior mould bar 13 to wear
Axially extending bore 131, makes upper mold 20 and lower mold 30 can guide along interior mould bar 13 and displacement pressurization in opposite directions.
During enforcement, described perforation 11 inner peripheral is provided with a plurality of axial iron core, and each iron core is wound around conductor wire
Circle forms multipole magnetic field 50, and lining 70 is arranged on multipole magnetic field 50 inner edge, aforementioned upper mold 20 outline with
Lining 70 Internal periphery is corresponding.Furthermore, described lining 70 is at the thickness corresponding to multipole magnetic field 50 position relatively
Thin, relatively thick corresponding to the magnetic field of the multipole magnetic field 50 51 position thickness that have a common boundary, make die cavity 40 corresponding to many
The space of pole field 50 position is wider, narrower corresponding to the have a common boundary space of 51 positions, magnetic field.
During enforcement, upper mold 20 wall, at least provided with a steam vent 21, allows upper mold 20 relative to lower mold 30 displacement
During to powder pressing, the air in powder body can be discharged from steam vent 21, allows powder body pressurized solid shape cyclization
Shape idiosome 60.
By the structure of two kinds of embodiments, the present invention gives after powder body is inserted the mould with annular die cavity 40
Extrusion forming is annular idiosome 60, and bestows axial current formed many in outer rim or the inner edge of annular die cavity 40
Pole field 50, so that idiosome 60 is carried out magnetic pole orientation 61, makes this idiosome 60 possess external diameter orientation or internal diameter orientation
After sintered, then to sintering after idiosome 60 ground, it is characterised in that:
Annular idiosome 60 after described extrusion forming and magnetic pole orientation 61 is being joined corresponding to internal diameter orientation or external diameter
Meat thickness thicker to the meat of position, 62 positions that have a common boundary corresponding to magnetic pole are relatively thin, this idiosome when making follow-up sintering
60 in the higher orientation position of shrinkage factor, and the magnetic pole relatively low with shrinkage factor has a common boundary 62 positions, two positions
Thickness after sintering can be closer to each other and level off to proper circle, and then reduces follow-up grinding man-hour and material damages
Lose.
Described above it is merely exemplary for the purpose of the present invention, and nonrestrictive, ordinary skill people
Member understand, in the case of the spirit and scope limited without departing from claim, can many modifications may be made,
Change or equivalence, but within falling within protection scope of the present invention.
Claims (9)
1. a manufacture method for pole anisotropy annular Magnetitum, gives after powder body is inserted the mould with annular die cavity
With extrusion forming for annular idiosome, and axial electricity is bestowed in outer rim or the inner edge of annular die cavity when extrusion forming
Stream formation multipole magnetic field is to carry out magnetic pole orientation to idiosome, after making this idiosome possess external diameter orientation or internal diameter orientation
Sintered, then the idiosome after sintering ground, it is characterised in that:
Annular idiosome after described extrusion forming and magnetic pole orientation is corresponding to internal diameter orientation or external diameter orientation position
Meat thicker, relatively thin corresponding to the meat thickness of position, magnetic pole boundary, when making follow-up sintering, this idiosome is in shrinkage factor
Higher magnetic pole orientation position, the magnetic pole boundary position relatively low with shrinkage factor, two positions are after sintering
Thickness can be closer to each other.
2. a pole anisotropy annular Magnetitum pressurization orientation mould structure for internal diameter orientation, comprises one and has circular die
Cave and the middle mold of multipole magnetic field, one group can in die cavity the upper mold of displacement pressurization in opposite directions and lower mold, powder body is filled out
Enter in the annular die cavity of middle mold, powder body can be made to be pressed into annular idiosome by upper mold and lower mold displacement in opposite directions,
And on idiosome, produce magnetic pole orientation by being positioned at the multipole magnetic field of die cavity inner edge, it is characterised in that:
The annular die cavity inner edge of middle mold is provided with a lining, and this lining is at the thickness corresponding to multipole magnetic field position relatively
Thin, position, boundary, the magnetic field thickness corresponding to multipole magnetic field is relatively thick, makes the ring after pressurization and magnetic pole orientation
Shape idiosome, is more than the thickness of position, magnetic pole boundary at the thickness corresponding to magnetic pole orientation position.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of internal diameter orientation the most according to claim 2, its
Being characterised by, this middle mold comprises an outer mould base with axial through bore, and one is axially disposed within perforation
Interior mould bar, forms annular die cavity between described perforation inner edge and interior mould bar outer rim；Described upper mold and lower mold central authorities
It is provided with the axially extending bore worn for interior mould bar.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of internal diameter orientation the most according to claim 3, its
Being characterised by, described interior mould bar outer peripheral edge is provided with a plurality of axial iron core, and each iron core is wound around conductive coil
Form multipole magnetic field, and lining be arranged on multipole magnetic field outer rim, the axially extending bore inner edge profile of aforementioned upper mold with
Lining outer margin contour is corresponding.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of internal diameter orientation the most according to claim 2, its
Being characterised by, upper die side wall is provided with at least one steam vent.
6. a pole anisotropy annular Magnetitum pressurization orientation mould structure for external diameter orientation, comprises one and has circular die
Cave and the middle mold of multipole magnetic field, one group can in die cavity the upper mold of displacement pressurization in opposite directions and lower mold, powder body is filled out
Enter in the annular die cavity of middle mold, powder body can be made to be pressed into annular idiosome by upper mold and lower mold displacement in opposite directions,
And on idiosome, produce magnetic pole orientation by being positioned at the multipole magnetic field of die cavity outer rim, it is characterised in that:
The annular die cavity outer rim of middle mold is provided with a lining, and this lining is at the thickness corresponding to multipole magnetic field position relatively
Thin, position, boundary, the magnetic field thickness corresponding to multipole magnetic field is relatively thick, makes the ring after pressurization and magnetic pole orientation
Shape idiosome, is more than the thickness of position, magnetic pole boundary at the thickness corresponding to magnetic pole orientation position.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of external diameter orientation the most according to claim 6, its
Being characterised by, described middle mold comprises an outer mould base with axial through bore, and one is axially disposed within perforation
Interior mould bar, between described perforation inner edge and interior mould bar outer rim formed annular die cavity；In described upper mold and lower mold
Centre is provided with the axially extending bore worn for interior mould bar.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of external diameter orientation the most according to claim 7, its
Being characterised by, described perforation inner peripheral is provided with a plurality of axial iron core, and each iron core is wound around conductor wire cast
Becoming multipole magnetic field, and lining is arranged on multipole magnetic field inner edge, aforementioned upper mold outline is relative with lining Internal periphery
Should.
The pole anisotropy annular Magnetitum pressurization orientation mould structure of external diameter orientation the most according to claim 6, its
Being characterised by, upper die side wall is provided with at least one steam vent.
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| CN106903317B (en) * | 2015-12-23 | 2018-10-26 | 财团法人金属工业研究发展中心 | The mold and preparation method thereof of annular neodymium iron boron magnetite |
| CN109149878B (en) * | 2017-06-15 | 2023-08-08 | 辽宁启明汽车电器有限公司 | Manufacturing method and pressing die of radius-adjustable generator stator core |
| CN112017855A (en) * | 2020-07-30 | 2020-12-01 | 烟台正海磁性材料股份有限公司 | Anisotropic oriented magnet and manufacturing method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005008862A1 (en) * | 2003-07-22 | 2005-01-27 | Aichi Steel Corporation Ltd. | Thin hybrid magnetization type ring magnet, yoke-equipped thin hybrid magnetization type ring magnet, and brush-less motor |
| CN203466002U (en) * | 2013-09-16 | 2014-03-05 | 秀波电子股份有限公司 | Pressurized and aligned blank body and die structure for ring magnet with anisotropic poles |
Family Cites Families (1)
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005008862A1 (en) * | 2003-07-22 | 2005-01-27 | Aichi Steel Corporation Ltd. | Thin hybrid magnetization type ring magnet, yoke-equipped thin hybrid magnetization type ring magnet, and brush-less motor |
| CN1784819A (en) * | 2003-07-22 | 2006-06-07 | 爱知制钢株式会社 | Thin hybrid magnetization type ring magnet,yoke-equipped thin hybrid magnetization type ring magnet,and brush-less motor |
| CN203466002U (en) * | 2013-09-16 | 2014-03-05 | 秀波电子股份有限公司 | Pressurized and aligned blank body and die structure for ring magnet with anisotropic poles |
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| CN104465061A (en) | 2015-03-25 |
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