CN109278160A - A kind of magnetic shoe mould of permanent-magnet ferrite - Google Patents
A kind of magnetic shoe mould of permanent-magnet ferrite Download PDFInfo
- Publication number
- CN109278160A CN109278160A CN201810725805.0A CN201810725805A CN109278160A CN 109278160 A CN109278160 A CN 109278160A CN 201810725805 A CN201810725805 A CN 201810725805A CN 109278160 A CN109278160 A CN 109278160A
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- Prior art keywords
- magnetic shoe
- magnetic
- arc
- insert
- type chamber
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 163
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 21
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 17
- 238000000465 moulding Methods 0.000 description 7
- 239000000696 magnetic material Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present invention relates to a kind of magnetic shoe moulds, it is simple to provide a kind of structure, when making forming magnetic tile the magnetic line of force from outer arc to inner arc radially, realize that magnetic shoe extrados magnetic flux density increases, the magnetic shoe mould for the permanent-magnet ferrite that magnetic field strength improves, inner arcuate surface magnetic field strength is greater than outer arc Surface field intensity when solving forming magnetic tile existing in the prior art, it is unable to satisfy the technical problem of requirement etc., it includes the upper mold being fixed on mould bases, cavity plate and lower die, lower die is interspersed in the mesoporous of cavity plate and is enclosed arc magnetic shoe type chamber jointly with upper mold, the convex surface of arc magnetic shoe type chamber is towards upper mold, upper mold corresponding with arc magnetic shoe type chamber upper surface is equipped with upper insert, the lower insert with the concave surface interworking of arc magnetic shoe type chamber is equipped in lower die tip, annular intermediate die is folded between corresponding upper mold and cavity plate outside arc magnetic shoe type chamber, Upper insert, cavity plate and lower die therein are made of ferromagnetic material, and upper mold, lower insert and annular intermediate die are made of non-ferromagnetic material.
Description
Technical field
The present invention relates to a kind of magnetic shoe mould more particularly to a kind of structure are simple, the magnetic line of force is in radiation when making forming magnetic tile
Shape, and the magnetic shoe mould for the permanent-magnet ferrite that magnetic shoe extrados magnetic flux density increases, magnetic field strength improves.
Background technique
Existing permanent ferrite magnetic tile product is chiefly used in small and special electric machine, makees stator in use, magnetic shoe product inner arcuate surface
Intensity is greater than the Surface field intensity of outer arc, and when forming compacting, the upward inner arc of outer arc is downward, but does rotor in use, then requiring
Magnetic shoe outer arc Surface field intensity is greater than inner arcuate surface magnetic field strength, and existing permanent magnetic ferrite magnetic shoe mould is generally by mould bases
On the composition such as cavity plate, upper die and lower die, wherein mould bases, upper die and lower die are strong permeability magnetic material, and cavity plate is weak permeability magnetic material, mould
When tool molding under the action of an external magnetic field, the magnetic line of force mainly passes through mould bases, lower punch, molding blank, upper mold and hydraulic press, finally
Form the closure magnetic line of force.Since cavity plate is weak permeability magnetic material, the magnetic line of force can only arrive when by cavity plate through the lower die in die cavity
Molding blank, and upper mold is strong permeability magnetic material, and the cross-sectional area of lower die is much larger than with cavity plate contact surface area, the magnetic line of force is passing through
When bad body arrives upper mold, the magnetic line of force just starts the upper mold interface that ferromagnetic material is diffused into die cavity surrounding, and thus molding blank takes
To close to lower die be better than close to upper mold while, i.e., close to lower die when what magnetic shoe product magnetic field strength was big is molding on one side
One side, i.e. magnetic shoe inner arcuate surface magnetic field strength is greater than outer arc Surface field intensity, therefore existing traditional dies are unable to satisfy
Requirement.
Summary of the invention
The present invention is mainly there is provided a kind of structure is simple, and the magnetic line of force is from outer arc to inner arc in radiation when making forming magnetic tile
Shape realizes the magnetic shoe mould for the permanent-magnet ferrite that magnetic shoe extrados magnetic flux density increases, magnetic field strength improves, solves existing skill
Magnetic shoe inner arcuate surface magnetic field strength is greater than outer arc Surface field intensity when forming magnetic tile present in art, is unable to satisfy requirement
Deng technical problem.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: a kind of permanent-magnet ferrite
Magnetic shoe mould, including upper mold, cavity plate and the lower die being fixed on mould bases, lower die is interspersed in the mesoporous of cavity plate and common with upper mold
It is enclosed the arc magnetic shoe type chamber for forming magnetic shoe blank, the convex surface of the arc magnetic shoe type chamber is towards upper mold, with arc
The corresponding upper mold upper surface of magnetic shoe type chamber is equipped with upper insert, is equipped under the concave surface interworking with arc magnetic shoe type chamber in lower die tip
Insert, is folded with annular intermediate die outside arc magnetic shoe type chamber between corresponding upper mold and cavity plate, upper insert therein, cavity plate and under
Mould is made of ferromagnetic material, and upper mold, lower insert and annular intermediate die are made of non-ferromagnetic material.The magnetic line of force under magnetic fields
The overwhelming majority magnetic shoe blank extrados intracavitary to arc magnetic shoe type through mould bases, upper mold, the magnetic line of force in downward extension, due to
Away from lower die apart from asymptotic, since non-magnetic layer thickens among lower insert arc raised in lower die, magnetic resistance is increased, and
Under the guidance of the strong magnetic line of force of cavity plate two sides, just start to spread around when passing through magnetic shoe blank inner arc interface, thus magnetic force
When line passes through magnetic shoe blank extrados across intrados magnetic flux density, from outer arc to inner arc radially, i.e., magnetic flux density is greater than
Outer arc magnetic flux density is big, and inner arc magnetic flux density is small, increases the magnetic field strength of outer arc, is reasonably assigned with magnetic according to use demand
The magnetic field strength of watt blank, apparatus structure is simple, and processing and forming is convenient, good product performance, and yield is high, meets the use of magnetic shoe
Demand.
Preferably, the cross section of the upper insert is in the shape of the letter V, the upper insert interworking of V-shaped is inlaid in upper mold upper surface
V-arrangement upper groove in.The magnetic force direction of magnetic shoe blank extrados can be changed in the upper insert of V-shaped, makes magnetic force direction in magnetic shoe hair
The inward-facing concentration of embryo outer arc, so that magnetic flux density be made radially to be distributed from outer arc to inner arc.
More preferably, the width of the arc magnetic shoe type chamber is c, and the upper insert bottom width of V-shaped is a, and top surface is wide
Degree is b, and the upper insert bottom surface of V-shaped and arc magnetic shoe type chamber top surface distance are d, and the height of the upper insert of V-shaped is e, wherein a
=1/4c, b=c+(10 mm to 15mm), d=1.5mm to 3.5mm, e=30mm to 50mm.Through reasonable settings upper insert and its
The size of opposing arcuate magnetic shoe type chamber, it can be ensured that magnetic shoe blank extrados magnetic flux density reasonable layout meets the use need of magnetic shoe
It asks.
Preferably, the lower insert includes horizontal matrix, the upper surface middle part of horizontal matrix upwardly extend to be formed with it is recessed
The lower surface middle part of jacking block on the arc of face interworking, horizontal matrix is downwardly extending jacking block under V-arrangement, and jacking block interworking is embedding under V-arrangement
In the V-arrangement lower groove of lower die upper surface.Since the thickness of lower insert is gradually decreased from centre to two sides, even if lower insert
Intermediate non-magnetic thickness, increases magnetic resistance, at this time under the guidance of the pure iron magnetic line of force of cavity plate lower end two sides, the magnetic line of force is passed through
Just start to spread around when magnetic shoe blank inner arc interface.
More preferably, the height of the horizontal matrix is s, and jacking block bottom width is m under V-arrangement, the top of jacking block on arc
Face be n, wherein m=5mm to 10mm, b=15mm to 20mm, s=1/4n at a distance from jacking block bottom surface under V-arrangement.Through reasonable settings
Lower insert size, can rationally be arranged magnetic resistance and guide change magnetic line of force direction, it is ensured that the magnetic flux density of magnetic shoe blank from outer arc to
Inner arc is radially distributed.
Preferably, the arc magnetic shoe type chamber with a thickness of f, the bottom surface and arc magnetic shoe type chamber top surface of annular intermediate die
Distance be g, the height of cavity plate is h, g=f therein, h=3f.Reasonable setting arc magnetic shoe cavity dimension and its in annular
Between relative size between mould, cavity plate, satisfy the use demand the magnetic flux distribution of magnetic shoe blank.
Preferably, embedded with demoulding sliding sleeve in cavity plate mesoporous corresponding with the lower die, demould the upper end of sliding sleeve to
On extend to the lower end surface of upper mold, lower die interworking is slidably connected in the mesoporous of demoulding sliding sleeve., demould sliding sleeve and increase mold
Wearability, while improving the finish on molding magnetic shoe blank surface.
More preferably, the demoulding sliding sleeve is made of hard non-magnetic alloy.Wearability height is made in non-magnetic alloy, easily de-
Mould.
Preferably, the upper insert and cavity plate are made of No. 45 steel or pure iron, lower die is made of No. 45 steel；Upper mold and ring
Shape intermediate die is made of 304 magnetism-free stainless steels, and lower insert is made by nonmagnetic steel or without magnetic Si Taili.
Preferably, the upper insert is set to the middle part of arc magnetic shoe type chamber top surface, lower insert is set to arc magnetic shoe type chamber
The middle part of bottom surface.Upper and lower insert centering distribution, it is ensured that molding magnetic shoe blank magnetic force distribution balance and symmetry.
Therefore, a kind of magnetic shoe mould of permanent-magnet ferrite of the present invention has an advantage that by the way that protrusion is arranged in lower die
Lower insert, thicken in-between non-magnetic layer, increase magnetic resistance, under the guidance of the pure iron magnetic line of force of cavity plate two sides, wearing
Just start to spread around when crossing magnetic shoe blank inner arc interface, keep outer arc magnetic flux density big, inner arc magnetic flux density is small, increases outer
The magnetic field strength of arc, apparatus structure is simple, and the magnetic field strength of magnetic shoe blank, processing and forming are reasonably assigned with according to use demand
Convenient, good product performance, yield is high, meets the use demand of magnetic shoe.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram of the magnetic shoe mould of permanent-magnet ferrite of the present invention；
Fig. 2 is the scheme of installation of upper insert and upper mold in the present invention；
Fig. 3 is the scheme of installation of lower insert and lower die in the present invention；
Fig. 4 is the scheme of installation of cavity plate and annular intermediate die in the present invention；
Fig. 5 is FEMAG magnetic field analysis figure of the invention.
Specific embodiment:
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
As shown in Figure 1, a kind of magnetic shoe mould of permanent-magnet ferrite of the invention, including be fixed on mould bases upper mold 1, cavity plate 2
With lower die 3, as 2 upper surface of cavity plate, lower die 3 is interspersed in the mesoporous of cavity plate 2 from the bottom to top and is total to upper mold 11 horizontal of upper mold
With being enclosed arc magnetic shoe type chamber 4 for forming blank product 11, the convex surface 41 of arc magnetic shoe type chamber 4 towards upper mold 1, with
Corresponding 1 upper surface of upper mold in the middle part of arc magnetic shoe type chamber 4 is provided with V-arrangement upper groove 8, in V-arrangement upper groove 8 interworking be embedded in it is fixed
The upper insert 5 of V-shaped, as shown in Fig. 2, setting the width of arc magnetic shoe type chamber 4 as c, 5 bottom width of upper insert of V-shaped is
A, upper 5 top surface width of insert are b, and upper 5 bottom surface of insert and 4 top surface of arc magnetic shoe type chamber distance are d, and the height of upper insert 5 is e,
Wherein a=1/4c, b=c+12 mm, d=2.5mm, e=40mm are provided in V-arrangement lower groove 9 in the middle part of 3 top surface of lower die, recessed in V-arrangement
Interworking is embedded in fixed lower insert 6 in slot 9, as shown in figure 3, lower insert 6 includes horizontal matrix 61, the upper surface of horizontal matrix 61
Integral middle formula upwardly extend to be formed with jacking block 62 on the arc of 42 interworking of concave surface, it is again downward in the middle part of the lower surface of horizontal matrix 61
Integral type extends to form jacking block 63 under V-arrangement, and 63 interworking of jacking block is inlaid in V-arrangement lower groove 9 under V-arrangement.Set horizontal matrix 61
Height is s, and 63 bottom width of jacking block is m under V-arrangement, on arc the top surface of jacking block 62 be n at a distance from 63 bottom surface of jacking block under V-arrangement,
Wherein m=8mm, b=18mm, s=1/4n.Annular intermediate die is clamped between corresponding upper mold 1 and cavity plate 2 outside arc magnetic shoe type chamber 4
7, it is embedded in fixed demoulding sliding sleeve 10 in 2 mesoporous of cavity plate corresponding with lower die 3, demoulds sliding sleeve 10 by hard non-magnetic alloy system
At the upper end of demoulding sliding sleeve 10 extends upwardly to the lower end surface of upper mold 1, and 3 interworking of lower die is slidably connected in demoulding sliding sleeve 10
In hole, as shown in figure 4, setting arc magnetic shoe type chamber 4 pushes up with a thickness of f, the bottom surface of annular intermediate die 7 and arc magnetic shoe type chamber 4
The distance in face is g, and the height of cavity plate 2 is h, g=f therein, h=3f.Upper insert 5, cavity plate 2 and lower die 3 therein are by strong magnetic
Material is made, and in the present embodiment, upper insert 5 and cavity plate 2 are made of No. 45 steel or pure iron, and lower die 3 is made of No. 45 steel；Upper mold
1, lower insert 6 and annular intermediate die 7 are made of non-ferromagnetic material, and in the present embodiment, upper mold 1 is with annular intermediate die 7 by 304 without magnetic
Stainless steel is made, and lower insert 6 is made by nonmagnetic steel or without magnetic Si Taili.
FEMAG magnetic field analysis figure as shown in Figure 5, the magnetic line of force overwhelming majority arrives hair through mould bases, upper mold 1 under magnetic fields
11 extrados of embryo product, the magnetic line of force in downward extension, due to away from lower die 3 apart from asymptotic, among the lower insert 6 in lower die 3
Non-magnetic thickness increases magnetic resistance, and under the guidance of the 2 lower end two sides pure iron magnetic line of force of cavity plate, passes through 11 inner arc of blank product
Just start to spread around when interface, thus the magnetic line of force passes through 11 extrados magnetic flux density of blank product and is greater than across intrados magnetic
Flux density, from outer arc to inner arc radially, i.e. outer arc magnetic flux density are big, and inner arc magnetic flux density is small, to increase outer arc
Magnetic field strength.
Specific embodiment described herein is only to give an example to design of the invention.Technology belonging to the present invention
The technical staff in field can make various modifications or additions to the described embodiments or by a similar method
Substitution, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of magnetic shoe mould of permanent-magnet ferrite, including upper mold (1), cavity plate (2) and the lower die (3) being fixed on mould bases, under
Mould (3) is interspersed in the mesoporous of cavity plate (2) and is enclosed the arc magnetic for forming magnetic shoe blank (11) jointly with upper mold (1)
Tile-type chamber (4), it is characterised in that: the convex surface (41) of the arc magnetic shoe type chamber (4) is towards upper mold (1), with arc magnetic shoe type chamber
(4) corresponding upper mold (1) upper surface is equipped with upper insert (5), is equipped with the concave surface with arc magnetic shoe type chamber (4) on lower die (3) top
(42) the lower insert (6) of interworking is folded among annular between corresponding upper mold (1) and cavity plate (2) outside arc magnetic shoe type chamber (4)
Mould (7), upper insert (5), cavity plate (2) and lower die (3) therein are made of ferromagnetic material, upper mold (1), lower insert (6) and ring
Shape intermediate die (7) is made of non-ferromagnetic material.
2. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1, it is characterised in that: the upper insert (5)
Cross section is in the shape of the letter V, and upper insert (5) interworking of V-shaped is inlaid in the V-arrangement upper groove (8) of upper mold (1) upper surface.
3. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 2, it is characterised in that: the arc magnetic shoe type chamber
(4) width is c, and upper insert (5) bottom width of V-shaped is a, and top surface width is b, upper insert (5) bottom surface of V-shaped and arc
Shape magnetic shoe type chamber (4) top surface distance is d, and the height of the upper insert (5) of V-shaped is e, wherein a=1/4c, and b=c+(10 mm is extremely
15mm), d=1.5mm to 3.5mm, e=30mm are to 50mm.
4. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1 or 2 or 3, it is characterised in that: the lower insert
It (6) include horizontal matrix (61), the upper surface middle part of horizontal matrix (61) upwardly extends to be formed and the arc of concave surface (42) interworking
The lower surface middle part of upper jacking block (62), horizontal matrix (61) is downwardly extending jacking block under V-arrangement (63), and jacking block (63) is mutual under V-arrangement
It is interior with the V-arrangement lower groove (9) for being inlaid in lower die (3) upper surface.
5. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 4, it is characterised in that: the horizontal matrix (61)
Height be s, jacking block (63) bottom width is m under V-arrangement, jacking block (63) bottom surface under the top surface of jacking block (62) and V-arrangement on arc
Distance is n, wherein m=5mm to 10mm, b=15mm to 20mm, s=1/4n.
6. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1 or 2 or 3, it is characterised in that: the arc magnetic
Tile-type chamber (4) with a thickness of f, the bottom surface of annular intermediate die (7) at a distance from arc magnetic shoe type chamber (4) top surface be g, cavity plate (2)
Height be h, g=f therein, h=3f.
7. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1 or 2 or 3, it is characterised in that: with it is described under
Embedded with demoulding sliding sleeve (10) in corresponding cavity plate (2) mesoporous of mould (3), the upper end of demoulding sliding sleeve (10) extends upwardly to upper mold
(1) lower end surface, lower die (3) interworking are slidably connected in the mesoporous of demoulding sliding sleeve (10).
8. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 7, it is characterised in that: the demoulding sliding sleeve (10)
It is made of hard non-magnetic alloy.
9. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1 or 2 or 3, it is characterised in that: the upper insert
(5) it is made with cavity plate (2) of No. 45 steel or pure iron, lower die (3) is made of No. 45 steel；Upper mold (1) and annular intermediate die (7) by
304 magnetism-free stainless steels are made, and lower insert (6) is made by nonmagnetic steel or without magnetic Si Taili.
10. a kind of magnetic shoe mould of permanent-magnet ferrite according to claim 1 or 2 or 3, it is characterised in that: the upper edge
Block (5) is set to the middle part of arc magnetic shoe type chamber (4) top surface, and lower insert (6) is set to the middle part of arc magnetic shoe type chamber (4) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725805.0A CN109278160B (en) | 2018-07-04 | 2018-07-04 | A kind of magnetic shoe mould of permanent-magnet ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725805.0A CN109278160B (en) | 2018-07-04 | 2018-07-04 | A kind of magnetic shoe mould of permanent-magnet ferrite |
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| Publication Number | Publication Date |
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| CN109278160A true CN109278160A (en) | 2019-01-29 |
| CN109278160B CN109278160B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725805.0A Active CN109278160B (en) | 2018-07-04 | 2018-07-04 | A kind of magnetic shoe mould of permanent-magnet ferrite |
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| Country | Link |
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| CN (1) | CN109278160B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497435A (en) * | 2020-10-22 | 2021-03-16 | 横店集团东磁股份有限公司 | Permanent magnetic ferrite outer arc strong magnetic shoe mould |
| CN114261005A (en) * | 2021-12-27 | 2022-04-01 | 安徽金寨将军磁业有限公司 | Design method of forming die for improving central magnetic field of permanent magnetic ferrite magnetic shoe |
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| CN2747053Y (en) * | 2004-12-17 | 2005-12-21 | 佛山市顺德区霸菱磁电有限公司 | Magnetic steel formation mould used specially for microwave oven |
| CN202438610U (en) * | 2012-02-16 | 2012-09-19 | 自贡市江阳磁材有限责任公司 | Molding die for magnetic tiles with evenly distributed high magnetic flux densities on inner arc surfaces |
| CN203409879U (en) * | 2013-08-13 | 2014-01-29 | 横店集团东磁股份有限公司 | Novel permanent magnetic ferrite magnetic shoe die |
| CN203888001U (en) * | 2014-06-23 | 2014-10-22 | 马鞍山市鑫洋永磁有限责任公司 | Upper forming mould used for production of permanent magnetic ferrite motor magnetic shoes |
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| CN105946098A (en) * | 2016-03-10 | 2016-09-21 | 安徽金寨将军磁业有限公司 | Multi-pole magnetizing permanent magnetic ferrite magnetic tile die |
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2018
- 2018-07-04 CN CN201810725805.0A patent/CN109278160B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2747053Y (en) * | 2004-12-17 | 2005-12-21 | 佛山市顺德区霸菱磁电有限公司 | Magnetic steel formation mould used specially for microwave oven |
| CN202438610U (en) * | 2012-02-16 | 2012-09-19 | 自贡市江阳磁材有限责任公司 | Molding die for magnetic tiles with evenly distributed high magnetic flux densities on inner arc surfaces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497435A (en) * | 2020-10-22 | 2021-03-16 | 横店集团东磁股份有限公司 | Permanent magnetic ferrite outer arc strong magnetic shoe mould |
| CN114261005A (en) * | 2021-12-27 | 2022-04-01 | 安徽金寨将军磁业有限公司 | Design method of forming die for improving central magnetic field of permanent magnetic ferrite magnetic shoe |
| CN114261005B (en) * | 2021-12-27 | 2023-11-28 | 安徽金寨将军磁业有限公司 | Forming die design method for improving central magnetic field of permanent ferrite magnetic shoe |
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| Publication number | Publication date |
|---|---|
| CN109278160B (en) | 2019-10-29 |
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Application publication date: 20190129 Assignee: Jinhua cimeng Intellectual Property Service Co.,Ltd. Assignor: HENGDIAN GROUP DMEGC MAGNETICS Co.,Ltd. Contract record no.: X2023330000883 Denomination of invention: A magnetic tile mold for permanent magnet ferrite Granted publication date: 20191029 License type: Common License Record date: 20231128 |