CN106024370B - A kind of pressing under magnetic field method and device - Google Patents
A kind of pressing under magnetic field method and device Download PDFInfo
- Publication number
- CN106024370B CN106024370B CN201610610345.8A CN201610610345A CN106024370B CN 106024370 B CN106024370 B CN 106024370B CN 201610610345 A CN201610610345 A CN 201610610345A CN 106024370 B CN106024370 B CN 106024370B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- soft mode
- magnetic field
- magnetic powder
- pressue device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The present invention relates to magnetic material field shaping techniques, more specifically, are related to a kind of pressing under magnetic field method and device；A kind of pressing under magnetic field method and device is provided, production procedure is simplified, realizes radial oriented, improves magnetic uniformity, and multiple products can be molded simultaneously；Magnetic powder is poured into soft mode chamber, soft mode chamber is made of mantle set, mantle set is located in high compression mold cavities, upper cylinder half drives mandril and seaming chuck to come downwards to and blocks soft mode chamber and seal high compression mold cavities, side cylinder band movable slider is to mandril upper end to bear its pressure, it is radial oriented to magnetic powder progress to apply electric current to the magnet exciting coil of electromagnet, highly pressurised liquid enters high compression mold cavities by high-voltage tube, lower cylinder drives piston rod uplink to apply pressure to high compression mold cavities, soft mode chamber stress squeezes magnetic powder, obtains the good radial oriented product of density high uniformity；In terms of magnetic cylinder, pipe, tile or square piece molding.
Description
Technical field
The present invention relates to magnetic material field shaping techniques, more specifically, are related to a kind of pressing under magnetic field method and device.
Background technology
In rare earth permanent magnet magnetic material.Current production method is mainly：Magnetic field is preforming suppress low-density green compact,
Plastic foil encapsulation, isostatic cool pressing, stripping polybag and then shove charge sintering.To pass through Vacuum Package, isostatic cool pressing, oil removing and stripping modeling
Material bag, complex process, product are easy oil inlet and aoxidize, and working efficiency is low；The plastics of viscous oil can not be handled, and cause environment dirty
Dye.Therefore, it is necessary to make improvements.
Invention content
In the presence of overcoming the shortcomings of the prior art, a kind of pressing under magnetic field method and device is provided, production is simplified
Flow, realizes radial oriented, improves magnetic uniformity, and can be molded multiple products simultaneously, as cylinder, pipe, tile or
Square piece.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
Magnetic powder is poured into soft mode chamber by a kind of pressing under magnetic field method, and soft mode chamber is made of mantle set, and mantle set is located at high pressing mold
Intracavitary, upper cylinder half drive mandril and seaming chuck to come downwards to and block soft mode chamber and seal high compression mold cavities, and side cylinder is on movable slider to mandril
End is to bear its pressure, and radial oriented to magnetic powder progress to the magnet exciting coil application electric current of electromagnet, highly pressurised liquid passes through high pressure
Pipe enters high compression mold cavities, and lower cylinder drives piston rod uplink to apply pressure to high compression mold cavities, and soft mode chamber stress squeezes magnetic powder, obtains close
Spend the good radial oriented product of high uniformity.
When magnetic powder reaches requirement compactness, after a certain period of time, then upper cylinder half, side cylinder, lower cylinder retract original position for pressurize, take out diameter
To the product of orientation.
The product can be cylinder, pipe, tile or square piece.
The shape of the soft mode chamber is greater than other directions for the radian in differently- oriented directivity, to overcome the contraction of differently- oriented directivity
It is after molding more irregular than the bigger caused magnetic powder in other directions, specially：When forming cylinder or pipe, the shape of soft mode chamber
For ellipse, when shaping tile or square piece, the soft mode chamber radian larger in differently- oriented directivity band.
For oxidizable magnetic powder, increase sealing device, couple glove box, when use is filled with nitrogen or indifferent gas into it
Body prevents magnetic powder from aoxidizing.
The highly pressurised liquid can be machinery oil, emulsion or liquid plastics.
A kind of pressing under magnetic field device, including magnetic field orientating device, die device and pressue device, the magnetic field orientating device
Including frame, magnet exciting coil and pole, the magnet exciting coil and pole are fixed on frame, are located on the outside of die device, described
Die device includes die coat and soft mode set, and die coat is supported on frame, and mantle is set on inside die coat, soft
Magnetic powder is filled in Membrane cover, the pressue device includes upper pressue device and lower pressue device, and upper pressue device can block mantle set
Soft mode chamber, and the top of sealed mold housing are constituted, the lower part that lower pressue device can block die coat constitutes high compression mold cavities.
The upper pressue device includes upper cylinder half, mandril and seaming chuck, and upper cylinder half can drive seaming chuck to move up and down by mandril,
The lower pressue device includes lower cylinder and booster rod, and the lower cylinder can drive booster rod to move up and down.
Magnetic powder molding for lower pressure, it is independently pressurized by upper pressue device.
Magnetic powder molding for elevated pressures, die device further includes mold inner sleeve, and the mold inner sleeve is located at outside mold
Set inside is bonded with it, and described device further includes side pressue device, and the side pressue device includes side cylinder, sliding block and slider support
Plate, side cylinder can drive slide block movement to mandril top to bear its pressure, and the booster rod is located in booster cavity, the booster cavity
It is connected to high compression mold cavities, the booster cavity is also communicated with high-voltage tube, and the rod areas of the lower cylinder is the number for being pressurized rod area
Times.
Further include guider, the guider includes guide rod, guide sleeve and guide plate, and guide sleeve is set to frame
Upper end inside, guide rod can move up and down in guide sleeve, and one end of guide plate is fixed on the lower end of guide rod, the other end with
The movable part of upper pressue device is fixedly connected.
The guider can have it is multiple, multiple guiders frame upper end be symmetrical arranged.
The die device is provided with multiple soft mode chambers, can be molded multiple cylinders, pipe, tile or square piece simultaneously.
Compared with prior art, the advantageous effect of present invention is that：
Magnet exciting coil is arranged in the periphery of magnetic material, pole face die cavity the present invention, realizes magnetic material in die cavity
It is radial oriented, and be provided with pressue device, the molding of lower pressure needed for magnetic powder, only need to independently be added by upper pressue device
Pressure needs magnetic powder the molding of elevated pressures, upper pressue device to also have side pressue device to come Auxiliary support, lower pressurization dress
It sets and realizes larger pressure by booster cavity, and the piston rod of lower cylinder is the several times of booster rod, realize the pressure of bigger, make magnetic powder
It can be molded in the case of higher pressure, the present invention is additionally provided with guider, it can be achieved that while with bigger pressure, protects
The molding that magnetic powder can be more stable is demonstrate,proved, the present invention is provided with multiple die cavitys, can be completed at the same time multiple cylinders, pipe, tile or side
The molding of piece reduces cost, enterprise benefit.
Description of the drawings
Fig. 1 is structural schematic diagram when currently preferred magnetic powder does not pressurize.
Fig. 2 is structural schematic diagram of the currently preferred magnetic powder in pressurization.
Fig. 3 is side view of the currently preferred magnetic powder in pressurization.
Fig. 4 is the schematic diagram of currently preferred die device.
Fig. 5 is that there are three the schematic diagrames of soft mode chamber for mold tool in the embodiment of the present invention.
The vertical view of Fig. 5 when Fig. 6 is forming cylinder or pipe.
The vertical view of Fig. 5 when Fig. 7 is shaping tile or square piece.
In figure：1 it is frame, 2 be magnet exciting coil, 3 be pole, 4 be die coat, 5 be soft mode set, 6 be upper cylinder half, 7 is top
Bar, 8 be seaming chuck, 9 be lower cylinder, 10 be booster rod, 11 be mold inner sleeve, 12 be side cylinder, 13 be sliding block, 14 be booster cavity, 15
It is high compression mold cavities for soft mode chamber, 16,17 be high-voltage tube, 18 be slider support plate, 19 be guide rod, 20 is guide sleeve, 21 to lead
It is connecting rod to plate, 22.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-Fig. 4, a kind of preferred technical solution provided by the invention：A kind of pressing under magnetic field method and device,
Including magnetic field orientating device, die device and pressue device, the magnetic field orientating device includes frame 1, magnet exciting coil 2, pole
3, the magnet exciting coil 2 and pole 3 are fixed on frame 1, the magnetic powder in 3 face soft mode chamber 15 of pole, and the energization of magnet exciting coil 2 can
Radial oriented to magnetic powder progress, the die device includes die coat 4 and soft mode set 5, and die coat 4 is supported on frame 1,
Mantle set 5 be arranged inside die coat 4, mantle set 5 in fill magnetic powders, the pressue device include upper pressue device and it is lower plus
Pressure device, the upper pressue device include upper cylinder half 6, mandril 7 and seaming chuck 8, upper cylinder half 6 can be driven by connecting rod 22 mandril 7 and on
Pressure head 8 moves up and down, and blocks mantle set 5 and constitutes soft mode chamber 15, and the top of sealed mold housing 4, the lower pressue device packet
Lower cylinder 9 and booster rod 10 are included, the lower cylinder 9 can drive booster rod 10 to move up and down, and the lower part for blocking die coat 4 constitutes high pressure
Die cavity 16.For needing the magnetic powder of lower pressure to be molded, seaming chuck 8 is driven directly to squeeze magnetic powder downwards by upper cylinder half 6, for
It needs the magnetic powder of elevated pressures to be molded, mold inner sleeve 11 is bonded in die coat 4, setting side cylinder 12 is transported with movable slider 13 on device
It moves to 7 upper end of mandril to bear its pressure, lower cylinder 9 drives the movement in booster cavity 14 of booster rod 10, to being applied in high compression mold cavities 16
Plus-pressure, highly pressurised liquid can enter high compression mold cavities 16 by high-voltage tube 17, and device is additionally provided with guider, and guider includes
Guide rod 19, guide sleeve 20 and guide plate 21, guide sleeve 20 are set to inside the upper end of frame 1, and guide rod 19 can be in guide sleeve
Move up and down in 20, one end of guide plate 21 is fixed on the lower end of guide rod 19, the other end be fixed on mandril 7 and seaming chuck 8 it
Between, it is set in the present embodiment there are one guider, which can be the double rod being arranged symmetrically, according to stress size,
It can be that four bars being arranged symmetrically are oriented to, can also be that multiple guiders are symmetrical arranged, refering to Fig. 5, be arranged in the present embodiment
There are three soft mode chambers 15, can be molded three products simultaneously in compacting, one-mold multiple-member be realized, refering to Fig. 6, due to differently- oriented directivity
Other directions of shrinkage ratio it is bigger, therefore soft mode chamber 15 can be shaped to ellipse, make cylinder or pipe after molding
Meet regulation, refering to Fig. 7, when shaping tile or square piece, be arranged in differently- oriented directivity it is cambered, to overcome the shrinkage ratio of differently- oriented directivity
The bigger caused magnetic powder in other directions is after molding irregular.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of pressing under magnetic field method, it is characterised in that：Magnetic powder is poured into soft mode chamber, soft mode chamber is made of mantle set, mantle set
In high compression mold cavities, upper cylinder half drives mandril and seaming chuck to come downwards to and blocks soft mode chamber and seal high compression mold cavities, and side cylinder, which drives, to be slided
Block, to bear its pressure, applies electric current to the magnet exciting coil of electromagnet and carries out radial oriented, high pressure liquid to magnetic powder to mandril upper end
Body enters high compression mold cavities by high-voltage tube, and lower cylinder drives piston rod uplink to apply pressure to high compression mold cavities, and soft mode chamber stress squeezes
Magnetic powder obtains the good radial oriented product of density high uniformity；The shape of the soft mode chamber is wanted for the radian in differently- oriented directivity
More than other directions, to overcome the bigger caused magnetic powder in other directions of the shrinkage ratio of differently- oriented directivity after molding irregular, tool
Body is：When forming cylinder or pipe, the shape of soft mode chamber is ellipse, and when shaping tile or square piece, soft mode chamber is in differently- oriented directivity
With larger radian.
2. a kind of pressing under magnetic field method according to claim 1, it is characterised in that：When magnetic powder reaches requirement compactness, protect
After a certain period of time, then upper cylinder half, side cylinder, lower cylinder retract original position to pressure, take out radial oriented product.
3. a kind of pressing under magnetic field method according to claim 1, it is characterised in that：The product can be cylinder, pipe,
Tile or square piece.
4. a kind of pressing under magnetic field device, it is characterised in that：Including magnetic field orientating device, die device and pressue device, the magnetic
Field aligning device includes frame（1）, magnet exciting coil（2）And pole（3）, the magnet exciting coil（2）And pole（3）It is fixed on frame
（1）On, it is located on the outside of die device, the die device includes die coat（4）With soft mode set（5）, die coat（4）Support
In frame（1）On, mantle set（5）It is arranged in die coat（4）Inside, mantle set（5）Interior filling magnetic powder, the pressue device packet
Pressue device and lower pressue device are included, upper pressue device can block mantle set（5）Constitute soft mode chamber（15）, and outside sealed mold
Set（4）Top, lower pressue device can block die coat（4）Lower part constitute high compression mold cavities（16）；The upper pressue device
Including upper cylinder half（6）, mandril（7）And seaming chuck（8）, upper cylinder half（6）Mandril can be passed through（7）Drive seaming chuck（8）It moves up and down, it is described
Lower pressue device includes lower cylinder（9）And booster rod（10）, the lower cylinder（9）Booster rod can be driven（10）It moves up and down；For compared with
The magnetic powder of high pressure is molded, and die device further includes mold inner sleeve（11）, the mold inner sleeve（11）Positioned at die coat（4）It is interior
Side is bonded with it, and described device further includes side pressue device, and the side pressue device includes side cylinder（12）, sliding block（13）And sliding block
Support plate（18）, side cylinder（12）It can be with movable slider（13）Move to mandril（7）Top is to bear its pressure, the booster rod（10）
Positioned at booster cavity（14）It is interior, the booster cavity（14）With high compression mold cavities（16）Connection, the booster cavity（14）Also it is communicated with high pressure
Pipe（17）, the lower cylinder（9）Rod areas be booster rod（10）The several times of area；The die device is provided with multiple soft
Die cavity can be molded multiple cylinders, pipe, tile or square piece simultaneously.
5. a kind of pressing under magnetic field device according to claim 4, it is characterised in that：Magnetic powder molding for lower pressure,
It is independently pressurized by upper pressue device.
6. a kind of pressing under magnetic field device according to claim 4, it is characterised in that：Further include guider, the guiding
Device includes guide rod（19）, guide sleeve（20）And guide plate（21）, guide sleeve（20）It is set to frame（1）Upper end inside,
Guide rod（19）It can be in guide sleeve（20）Interior up and down motion, guide plate（21）One end be fixed on guide rod（19）Lower end, separately
One end and the movable part of upper pressue device are fixedly connected.
7. a kind of pressing under magnetic field device according to claim 6, it is characterised in that：The guider can have it is multiple,
Multiple guiders are in frame（1）Upper end is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610345.8A CN106024370B (en) | 2016-07-29 | 2016-07-29 | A kind of pressing under magnetic field method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610345.8A CN106024370B (en) | 2016-07-29 | 2016-07-29 | A kind of pressing under magnetic field method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106024370A CN106024370A (en) | 2016-10-12 |
| CN106024370B true CN106024370B (en) | 2018-10-19 |
Family
ID=57115588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610610345.8A Active CN106024370B (en) | 2016-07-29 | 2016-07-29 | A kind of pressing under magnetic field method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106024370B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683866A (en) * | 2016-12-19 | 2017-05-17 | 江西尚朋电子科技有限公司 | Preparation method of eccentric magnetic core component of soft magnetic ferrite |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3554604B2 (en) * | 1995-04-18 | 2004-08-18 | インターメタリックス株式会社 | Compact molding method and rubber mold used in the method |
| CN2353512Y (en) * | 1999-01-28 | 1999-12-15 | 董中天 | Equistatic-pressure machine |
| CN2412727Y (en) * | 2000-03-06 | 2001-01-03 | 董中天 | Isotatic pressing machine |
| JP2005268385A (en) * | 2004-03-17 | 2005-09-29 | Mitsubishi Electric Corp | Magnetic field forming apparatus and method, ring type magnet forming apparatus, ring type magnet manufacturing method, and ring type sintered magnet |
| CN103878368A (en) * | 2012-12-19 | 2014-06-25 | 吴庆华 | Technology and device for forming dry bag quick isostatic pressing in oriented magnetic fields |
| CN105346129B (en) * | 2015-12-14 | 2017-03-22 | 董中天 | magnetic field isostatic pressing machine |
-
2016
- 2016-07-29 CN CN201610610345.8A patent/CN106024370B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106024370A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105346129B (en) | magnetic field isostatic pressing machine | |
| CN105599976B (en) | A kind of controlled atmosphere fresh-keeping packing machine | |
| CN106057462A (en) | Shifting magnetic field type method and device for pressing radiant orientation circular ring | |
| CN107708956A (en) | Electronic part encapsulation mould, multistation machine and electronic part encapsulation method | |
| CN106493361B (en) | Film dry bag magnetic field equal static pressure press | |
| CN204842971U (en) | Isobaric compacting tool set that floats of many loop type magnet blanks of a mould | |
| CN101823286B (en) | Method for molding large ceramic element through two steps by using cold isostatic pressing | |
| CN103971917B (en) | The forming method of sintered NdFeB radiation magnetic loop and equipment thereof | |
| CN106024370B (en) | A kind of pressing under magnetic field method and device | |
| CN102773477A (en) | Vacuumizing forming device and method of magnetic field hydraulic machine | |
| CN209972862U (en) | Vacuum packaging machine | |
| CN217822657U (en) | High-precision semiconductor element packaging hot press | |
| CN205020803U (en) | A cold isostatic pressing mould for preparing metal filter tube | |
| CN213796853U (en) | Production equipment for composite rubber sealing gasket | |
| CN106024366A (en) | Primary molding magnetic field molding method and device | |
| CN106042430B (en) | A kind of dry bag formula powder assistant formation method and device | |
| CN207172397U (en) | Mould for earthenware cold isostatic compaction | |
| CN203817388U (en) | Profiling die for neodymium-iron-boron large circular ring | |
| CN202715826U (en) | Magnetic field hydraulic machine vacuumizing forming device | |
| CN215039844U (en) | Plastic mould with adjustable runner structure | |
| CN110534332B (en) | Sintered magnet preparation method and pressure forming equipment thereof | |
| CN211218577U (en) | High accuracy adds sand and penetrates sand all-in-one | |
| WO2005105339A1 (en) | Method of squeezing foundry sand, match plate, and upper and lower flasks | |
| CN205551462U (en) | Drive arrangement of neodymium iron boron powder forming die carrier | |
| CN115283676B (en) | Magnetic field pressure forming and isostatic pressing integrated machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181116 Address after: 341099 Alloy Sheet Processing Workshop on the South Side of Jinling Road and the East Side of Industrial Second Road, Ganzhou Development Zone, Ganzhou City, Jiangxi Province Co-patentee after: Taiyuan Kaiyuan Intelligent Equipment Co., Ltd. Patentee after: Jiangxi Kaiyuan automation equipment Co., Ltd. Address before: 030003 No. 18 Dongjianhe Industrial Park, Xinghualing District, Taiyuan City, Shanxi Province Patentee before: Dong Kai |
|
| TR01 | Transfer of patent right |