CN201799607U - Molding die for pressing magnetic powder into multi-pole radial product - Google Patents
Molding die for pressing magnetic powder into multi-pole radial product Download PDFInfo
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- CN201799607U CN201799607U CN2010205204816U CN201020520481U CN201799607U CN 201799607 U CN201799607 U CN 201799607U CN 2010205204816 U CN2010205204816 U CN 2010205204816U CN 201020520481 U CN201020520481 U CN 201020520481U CN 201799607 U CN201799607 U CN 201799607U
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- 230000005405 multipole Effects 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 title abstract description 7
- 238000000465 moulding Methods 0.000 title abstract description 5
- 239000006247 magnetic powder Substances 0.000 title abstract 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009747 press moulding Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The utility model discloses a molding die for pressing magnetic powder into a multi-pole radial product. The molding die mainly comprises an upper die, a female die, a die core and a lower male die. An inner sleeve is arranged in the female die; the inner wall of the inner sleeve form a die cavity with the upper die, the die core and the lower male die which are concentrically arranged; the periphery of the inner sleeve of the female die is provided with a plurality of permanent magnets uniformly distributed along the circumference of the inner sleeve, the orientations of the adjacent permanent magnets are opposite, a magnetic conducting pole shoe is embedded between the adjacent permanent magnets, and the magnetic conducting pole shoe is connected with a magnetic conducting outer sleeve of the female die together to wrap and fix the permanent magnets in the female die. The molding die has simple structure and low cost, is convenient to operate, and solves the problems of insufficient orientation of the magnetic powder in the die cavity and operation inconvenience in the prior art.
Description
Technical field
The utility model belongs to mould manufacturing technology field, is particularly suitable for the multipole radially formed product mould technical field of magnetic compacting.
Background technology
The general magnetic field of adopting of dry-pressing mode press-moulding die mainly contains two kinds of electromagnetic field and permanent magnetic fields in the prior art.Electromagnetic field is owing to need a plurality of coilings, what coil windings produced is the high frequency magnetic field of intermittence, and pressing process is continuous, so the magnetic in the die cavity exists orientation insufficient in pressing process, cause the product magnetic flux of compression moulding not meet the demands, the product quality uniformity is relatively poor, in addition, shortcomings such as coil is also easily burnt out and life-span of mould is short are so the most employings of prior art is the permanent magnetic field structure mold.
Chinese patent literature discloses a kind of multipole radially magnetic mould (publication number: CN201084508), what this mould adopted is that the permanent magnet N utmost point and the S utmost point are alternately arranged the magnetic field that forms, described several permanent magnets and fixed mount are fixed with each other, and slide up and down with fixed mount.Earlier permanent magnet and fixed mount are moved down in the lump during use, make permanent magnet move to the die cavity lower end, again magnetic is added in the die cavity and near closed hollow ring, again permanent magnet is upwards moved to the die cavity periphery and suppress.But there are following two problems in above-mentioned multipole radially magnetic mould: the interior sleeve wall thickness of one, carbide alloy need weaken the magnetic field in the die cavity so greatly more than 2mm, makes that the magnetic orientation in the die cavity is insufficient, has reduced the magnetic property of product; Two, provide the permanent magnet in magnetic field when in die cavity, adding magnetic, all to need permanent magnet to be moved up and down inconvenient operation with fixed mount at every turn.
Summary of the invention
The purpose of this utility model is to provide a kind of mould that is used for magnetic is suppressed multipole radially product, make that the magnetic orientation in the die cavity is abundant, the good product consistency of moulding, can reach radially multipole by magnetizing behind the sintering, and this forming die structure is simple, cost is low, easy to operate, solved the problem that has the insufficient and inconvenient operation of magnetic orientation in the die cavity in the prior art.
The purpose of this utility model is achieved through the following technical solutions: a kind of mould with the multipole radially product of magnetic compacting mainly comprises patrix, die, core and lower punch.Interior cover is set in the described die, interior cover inwall constitutes die cavity jointly with patrix, core, the lower punch of concentric setting, the periphery of cover is provided with several along the equally distributed permanent magnet of interior cover circumference in the die, the opposite orientation setting of adjacent permanent magnet, between adjacent permanent magnet, be embedded with magnetic conductive pole piece, magnetic conductive pole piece and die magnetic conductive jacket are connected as one, and permanent magnet are wrapped make it to be fixed in the die.Add in die cavity before the magnetic, insert the magnetic conduction charging cover that an external diameter is slightly less than the die cavity internal diameter in die cavity, this charging is applied mechanically permeability magnetic material and is made, and has the effect of armoured magnetic field, adds die cavity thereby be convenient to magnetic.After magnetic joins die cavity, core is boosted to concordant with the die upper surface, take out the charging cover then, permanent magnet, magnetic conductive pole piece, the common magnetic field that forms of magnetic conductive jacket just are orientated the magnetic in the die cavity, can implement compression moulding to the magnetic in the die cavity.The interior sleeve wall thickness of die is thinner in the utility model, can make that the magnetic field intensity in the die cavity is brought up to 2800 ~ 14000Gs, makes magnetic be orientated in pressing process fully, and consistency of product is good, and simple to operation, the production efficiency height.
As preferably, described several permanent magnets are NdFeB magnet or similar kicker magnet, so that stronger magnetic field to be provided the magnetic in the die cavity fully are orientated.
As preferably, cover adopts not the magnetic conduction Hardmetal materials to make in the described die, and its wall thickness is controlled at 0.5 ~ 1.5mm, has both satisfied the wearability of die cavity, has improved the service life of mould, also can guarantee to have higher magnetic field intensity in the die cavity.
As preferably, the THICKNESS CONTROL of described magnetic conductive pole piece is at 0.5 ~ 1.5mm.
As preferably, describedly be arranged on the charging cover in the cover in the carbide alloy, highly to look the required powder quantity of shaped article and determine, the wall thickness of charging cover is controlled at 0.5-1.5mm and is advisable.
Therefore, the utlity model has compact conformation, simple to operate, characteristics such as magnetic is orientated in pressing process fully, and homogeneity of product is good.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model charging structural representation;
Fig. 3 is the attached TV structure schematic diagram of the utility model die.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
Embodiment 1: a kind of with the multipole radially formed product mould of magnetic compacting as shown in Figure 1, comprise patrix 1, die 2, core 3 and lower punch 4.Described die 2 is made up of 6,20 NdFeB magnets of interior cover or similar kicker magnet 7, magnetic conductive pole piece 10, magnetic conductive jacket 11; In cover 6 adopt not the magnetic conduction Hardmetal materials to make, its wall thickness is controlled at 1mm, can improve the magnetic field intensity in the die cavity so as far as possible, simultaneously can satisfy its wearability again, in the patrix 1 of cover 6 inwalls and concentric setting, core 3, lower punch 4 common formation die cavities 5, interior cover 6 peripheries are provided with cover equally distributed NdFeB magnet of 6 circumference or similar kicker magnet 7 in 20 edges, the opposite orientation setting of adjacent NdFeB magnet or similar kicker magnet 7, between adjacent NdFeB magnet or similar kicker magnet 7, be embedded with magnetic conductive pole piece 10, the thickness of magnetic conductive pole piece 10 is 1mm, magnetic conductive pole piece 10 is connected as one with magnetic conductive jacket 11, NdFeB magnet or similar kicker magnet 7 wrapped make it to be fixed in the die 2, like this NdFeB magnet or similar permanent magnet 7, magnetic conductive pole piece 10, the radial oriented magnetic field of magnetic conductive jacket 11 common formations.
In die cavity 5, add before the magnetic 8, in die cavity 5, insert the magnetic conduction charging cover 9 that an external diameter is slightly less than die cavity 5 internal diameters, these charging cover 9 usefulness permeability magnetic materials are made, highly looking required powder 8 quantity of shaped article determines, wall thickness is 1mm, have the effect of armoured magnetic field, add in the die cavity 5 thereby be convenient to magnetic 8.After adding die cavity 5 in by charging cover 9 magnetic to be pressed 8, core 3 is boosted to concordant with die 2 upper surfaces, the cover 9 of will feeding is again taken out, and magnetic 8 can be implemented compression moulding to the magnetic in the die cavity 58 after finishing magnetic field orientating under the loose state like this.Therefore, adopt the product of the multipole radially mould of this kind magnetic compacting manufacturing directly to be orientated fully, magnetize into radially multipole, and magnetic flux height, simple to operate, improved production efficiency.
Claims (5)
1. mould that is pressed into multipole radially product with magnetic, mainly comprise patrix, die, core and lower punch, interior cover is set in the described die, in the patrix of cover inwall and concentric setting, core, lower punch constitutes die cavity jointly, it is characterized in that: the periphery of cover is provided with several along the equally distributed permanent magnet of interior cover circumference in the die, the opposite orientation setting of adjacent permanent magnet, between adjacent permanent magnet, be embedded with magnetic conductive pole piece, magnetic conductive pole piece and die magnetic conductive jacket are connected as one, permanent magnet wrapped make it to be fixed in the die, in die cavity, add before the magnetic, insert the magnetic conduction charging cover that an external diameter is slightly less than the die cavity internal diameter in die cavity, this charging is applied mechanically permeability magnetic material and is made.
2. according to claim 1ly a kind ofly be pressed into the mould of multipole radially product with magnetic, it is characterized in that: described several permanent magnets are NdFeB magnet or similar kicker magnet.
3. according to claim 1ly a kind ofly be pressed into the mould of multipole radially product with magnetic, it is characterized in that: cover adopts not the magnetic conduction Hardmetal materials to make in the described die, and its wall thickness is controlled at 0.5 ~ 1.5mm.
4. according to claim 1ly a kind ofly be pressed into the mould of multipole radially product with magnetic, it is characterized in that: the THICKNESS CONTROL of described magnetic conductive pole piece is at 0.5 ~ 1.5mm.
5. a kind of mould that is pressed into multipole radially product with magnetic according to claim 1, it is characterized in that: the described charging cover that is arranged in overlapping in the carbide alloy, highly look the required powder quantity of shaped article and determine, the wall thickness of charging cover is controlled at 0.5-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205204816U CN201799607U (en) | 2010-09-08 | 2010-09-08 | Molding die for pressing magnetic powder into multi-pole radial product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205204816U CN201799607U (en) | 2010-09-08 | 2010-09-08 | Molding die for pressing magnetic powder into multi-pole radial product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799607U true CN201799607U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205204816U Expired - Fee Related CN201799607U (en) | 2010-09-08 | 2010-09-08 | Molding die for pressing magnetic powder into multi-pole radial product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799607U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847938A (en) * | 2012-10-07 | 2013-01-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN103072283A (en) * | 2012-12-30 | 2013-05-01 | 南京肯特复合材料有限公司 | Production method for annular magnet embedded hollow PTFE part |
| CN104715916A (en) * | 2013-12-11 | 2015-06-17 | 北京中科三环高技术股份有限公司 | Radiation orientation magnetic ring forming equipment and method |
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
| CN105590718A (en) * | 2016-03-11 | 2016-05-18 | 东莞市东鸿自动化科技有限公司 | A simple magnetization and magnetization method |
| CN105666936A (en) * | 2016-03-31 | 2016-06-15 | 张家港倍恩特磁塑科技有限公司 | Die for manufacturing magnet ring |
| CN107344236A (en) * | 2017-06-21 | 2017-11-14 | 徐州明润磁材有限公司 | A kind of manufacture method of miniature motor rotor |
| CN109369169A (en) * | 2018-12-10 | 2019-02-22 | 湖南航天磁电有限责任公司 | A method of reducing dry-pressing formed strontium ferrite outer radial multi-pole magnet-ring cracking |
-
2010
- 2010-09-08 CN CN2010205204816U patent/CN201799607U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847938A (en) * | 2012-10-07 | 2013-01-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN102847938B (en) * | 2012-10-07 | 2014-07-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN103072283A (en) * | 2012-12-30 | 2013-05-01 | 南京肯特复合材料有限公司 | Production method for annular magnet embedded hollow PTFE part |
| CN104715916A (en) * | 2013-12-11 | 2015-06-17 | 北京中科三环高技术股份有限公司 | Radiation orientation magnetic ring forming equipment and method |
| CN104715916B (en) * | 2013-12-11 | 2018-01-12 | 北京中科三环高技术股份有限公司 | A kind of radially oriented magnetic ring former and method |
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
| CN105590718A (en) * | 2016-03-11 | 2016-05-18 | 东莞市东鸿自动化科技有限公司 | A simple magnetization and magnetization method |
| CN105666936A (en) * | 2016-03-31 | 2016-06-15 | 张家港倍恩特磁塑科技有限公司 | Die for manufacturing magnet ring |
| CN107344236A (en) * | 2017-06-21 | 2017-11-14 | 徐州明润磁材有限公司 | A kind of manufacture method of miniature motor rotor |
| CN107344236B (en) * | 2017-06-21 | 2019-06-14 | 徐州明润磁材有限公司 | A kind of manufacturing method of miniature motor rotor |
| CN109369169A (en) * | 2018-12-10 | 2019-02-22 | 湖南航天磁电有限责任公司 | A method of reducing dry-pressing formed strontium ferrite outer radial multi-pole magnet-ring cracking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20110420 Termination date: 20180908 |