CN106493361B - Film dry bag magnetic field equal static pressure press - Google Patents
Film dry bag magnetic field equal static pressure press Download PDFInfo
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- CN106493361B CN106493361B CN201610984891.8A CN201610984891A CN106493361B CN 106493361 B CN106493361 B CN 106493361B CN 201610984891 A CN201610984891 A CN 201610984891A CN 106493361 B CN106493361 B CN 106493361B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
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- Press Drives And Press Lines (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to for the molding isostatic pressing machine of magnetic powder, specially a kind of film dry bag magnetic field equal static pressure press.The low problem for being difficult to realize automate and alignment magnetic field is relatively low of non-circular workpiece, efficiency can not be suppressed by solving existing magnetic field equal static pressure press.Including rack, frame top is provided with upper cylinder, and central rack is provided with workbench, isostatic tooling is placed on workbench, and oriented electromagnetic field device is provided with above and below isostatic tooling；Isostatic tooling includes the dry bag in high-pressure chamber and high-pressure chamber, and dry bag is made of the working portion of the support coupling part and lower part that are connect with high-pressure chamber inner wall sealing on top；Porous rigid pattern is further fixed in high-pressure chamber, the working portion of dry bag is made of thin-film material；It is additionally provided with magnetic powder ram-jolt mechanism outside high-pressure chamber.The present invention can suppress non-circular workpiece, high degree of automation, alignment magnetic field height.
Description
Technical field
The present invention relates to magnetic powder formers, more particularly to are used for the molding isostatic pressing machine of magnetic powder, specially a kind of film
Dry bag magnetic field equal static pressure press.
Background technology
Currently, the anisotropic magnet powder molding of sintering, most common technique is that first to carry out magnetic field orientating with Magnetic field press pre-
Molding, then isostatic pressed is carried out to improve density with isostatic pressing machine.Anisotropic magnet powder is preforming to need magnetic field orientating, pressure direction
It is parallel with alignment magnetic field direction, referred to as parallel pressure Magnetic field press；Pressure direction is vertical with alignment magnetic field direction, referred to as vertically
Press Magnetic field press；Whether parallel pressure or vertical pressure can all destroy magnetic field orientating to a certain extent, and parallel pressure takes magnetic field
To destruction it is especially prominent.And first preforming isostatic pressed again, it increases process and increases cost naturally, and is general at present
Isostatic pressing machine can only be hand-manipulated, and the amount of labour is big, and efficiency is low to be difficult to realize automate.
Magnetic field orientating isostatic compaction device should be referred to as magnetic field equal static pressure press.Isostatic pressed oriented moulding is had only not destroy
Magnetic field orientating, and even density.According to existing magnetic powder moulding process, the degree of orientation of magnetic powder is 90-92%, using isostatic pressed
Oriented moulding, for the degree of orientation up to 95% or more, this means that the magnetic energy product of isostatic pressed orientation magnet can improve 1-2MGo, poor
A few credit rating.
But so far isostatic pressed magnetic field orientating molding can only be an ideal, no matter China or foreign country are in spite of many
About the experimental study of magnetic field isostatic pressed, but without the magnetic field isostatic pressed for the sizing that can be applied in the production of actual industrial metaplasia
Equipment.So the reason of being so because of following several respects：
1）Magnetic field equal static pressure press first has to enough alignment magnetic fields, as sintered NdFeB alignment magnetic field is at least greater than
1.5T, although being orientated with pulsed magnetic field, magnetic field intensity is high, and pulsed coil occupies small, and pulse width is narrow, orientation
Too short, orientation is difficult to keep, and magnetic field is unevenly distributed；If being orientated with magnetostatic field, since isostatic pressed must be in sealing
It is carried out in ultrahigh pressure vessel, according to existing isostatic pressing machine high pressure cavity configuration, it is difficult to arrange the magnetic that can generate more highly oriented magnetostatic field
Pole.
2）Isostatic pressed must use mold, and the effect one of mold is that powder is made to keep required shape, second is that transmitting quiet
Pressure isolates powder and liquid pressure medium third, sealing, but existing isostatic tooling technology can not suppress
Non-circular workpiece, the reason is that existing non-garden mold transmits, static pressure is uneven, and plane is pressed into cambered surface by meeting.And a large amount of magnetic
Shape is non-garden.Even cylindrical magnet, larger deformation is also will produce at the both ends of cylinder, these deformations are not only
The waste that can cause magnetic powder material will also result in the uneven of the deformed part degree of orientation.
Invention content
The present invention, which solves existing magnetic field equal static pressure press, can not suppress that non-circular workpiece, efficiency are low to be difficult to realize automate, with
And the problem that alignment magnetic field is relatively low, a kind of film dry bag magnetic field equal static pressure press is provided.
The present invention adopts the following technical scheme that realization：Film dry bag magnetic field equal static pressure press, including rack, rack are frame
Formula structure, frame top are provided with upper cylinder, and central rack is provided with workbench, isostatic tooling is placed on workbench, on
The piston rod of oil cylinder passes through the upper beam of stirrup frame and is fixed with the sealing compression leg of isostatic tooling in its end, in isostatic mold
It is respectively arranged with oriented electromagnetic field device above and below tool；Isostatic tooling includes dry in high-pressure chamber and high-pressure chamber
Bag, dry bag are made of the working portion of the support coupling part and lower part that are connect with high-pressure chamber inner wall sealing on top；High pressure
Porous rigid pattern is further fixed in cavity, the working portion of dry bag is located in pattern die cavity, the working portion of dry bag
It is made of thin-film material, the die cavity of the shape of the working portion of dry bag, volume size and pattern matches so that dry bag is added
Shape after powder ram-jolt or tamping is consistent with the mold cavity shapes of pattern；There are pressure regulation oil cylinder, pressure regulation oil cylinder logical except rack
It crosses high-pressure hose to be connected to the inner cavity of high-pressure chamber, annular boss is arranged at high-pressure chamber outer circle lower part, has cylinder except annular boss
It covers, there is cylinder head, cylinder jacket and cylinder head to be fastened on workbench on annular boss, the ring-type of high-pressure chamber outer circle lower part is convex
Platform and cylinder liner internal wall are slidably matched as the piston of driving high-pressure chamber movement, are provided in cylinder jacket and to be communicated with piston cavity of resorption
Stomata is provided with the stomata communicated with piston upper chamber in cylinder head.Two stomatas alternately provide compressed air, can realize high pressure chest
The vertical tremor of body.
The course of work of the film dry bag magnetic field equal static pressure press is as follows：
1）Pressure regulation oil cylinder provides negative pressure into high-pressure chamber by high-pressure hose, under atmospheric pressure the work of dry bag
Part is tightly attached on pattern.
2）Using dosing device into dry bag slowly feed, at the same time to the upper and lower chamber phase of high-pressure chamber piston
Two logical stomatas alternately provide compressed air, drive high-pressure chamber vertical tremor, vibrations stop after the completion for charging, at this time dry bag
Interior magnetic powder reaches tap density, is full of die cavity.
3）Upper cylinder downlink, driving sealing compression leg downlink is until its lower plane is close to dry bag support coupling part and seals height
Press cavity suitable for reading.
4）Oriented electromagnetic field device is powered, and powerful alignment magnetic field is formed in the die cavity of isostatic tooling.
5）The pressure conversion that pressure regulation oil cylinder is provided by high-pressure hose into high-pressure chamber is for normal pressure and gradually pressure
It is increased to super-pressure（100-300MPa）Reach the time of one section of setting of pressurize after setting pressure.
6）Reverse current appropriate is filled in the power-off of oriented electromagnetic field device again, for the magnet demagnetization of oriented moulding.
7）Pressure regulation oil cylinder gradually reduces pressure, and high-pressure chamber drain charge is until reply negative pressure.
8）Upper cylinder uplink later, with the magnet that automatic device or manual taking-up are molded.
9）With automatic device or manual cleanup die cavity, prepare working cycles next time.
Film dry bag magnetic field equal static pressure press of the present invention using film dry bag and is additionally arranged ram-jolt mechanism, in negative pressure
Under the action of, film dry bag is close to the pattern of porous breathable hard material making, and the process that feeds slowly is obtained with vibrations magnetic powder
Uniformly stable tap density and accurate shape, the i.e. shape of pattern die cavity subtract the thickness of dry bag film, not only favorably
In improving the quality for being processed magnetic material, the degree of automation is also improved, processing efficiency is improved.Film dry bag uses soft height
The elastic material of intensity makes, and as possible thin can be made under conditions of intensity allows.When carrying out isostatic pressed, calligraphy or painting model is leaned on
The effect of body only allow liquid pressure medium by and be not involved in pressure transfer process, participate in pressure transmission only dry bag it is thin
Film, the loss that resilient flexible diaphragm pressure transmits is zero, ensure that the uniformity of Hydrostatic Transfer Device, has had uniform tap density
It is linear that powder is deformed in the effect of uniform static pressure, to ensure that the reliable compacting of non-circular Curve.
Description of the drawings
Fig. 1 is the structural schematic diagram under a kind of working condition of the present invention；
Fig. 2 is the structural schematic diagram under another working condition of the present invention；
Fig. 3 is the structural schematic diagram of isostatic tooling.
In figure：1- racks, 2- upper cylinders, 3- workbench, 4- seal compression leg, 5- high-pressure chambers, 6- dry bags, 7-
Pattern, 8- pressure regulation oil cylinders, 9- cylinder jacket, 10- cylinder head, 11- annular boss, 12,13- stomatas, the upper electromagnetic wires of 14-
It encloses, 15- upper magnet yoke plates, 16- lower cores, electromagnetic coil under 17-, 18- iron core guide sleeves, 19- leans on mould holder, the sides 20- oil
Cylinder, 21- sliding blocks.
Specific implementation mode
Film dry bag magnetic field equal static pressure press, including rack 1, rack 1 are frame structure, and 1 top of rack is provided with upper cylinder
2, central rack is provided with workbench 3, and isostatic tooling is placed on workbench 3, and the piston rod of upper cylinder 2 passes through stirrup frame
Upper beam and be fixed with the sealing compression leg 4 of isostatic tooling in its end, be respectively set above and below isostatic tooling
There is oriented electromagnetic field device；Isostatic tooling includes the dry bag 6 in high-pressure chamber 5 and high-pressure chamber, and dry bag 6 is by top and height
The working portion of the support coupling part and lower part of pressing cavity inner wall sealed connection is constituted；It is further fixed in high-pressure chamber 5 porous
The working portion of ventilative rigid pattern 7, dry bag 6 is located in 7 die cavity of pattern, and the working portion of dry bag 6 is made of film, dry bag
The die cavity of the shape of 6 working portion, volume size and pattern 7 matches so that after the powder ram-jolt or tamping of dry bag is added
Shape it is consistent with the mold cavity shapes of pattern；There are pressure regulation oil cylinder 8, pressure regulation oil cylinder 8 to pass through high-pressure hose and height except rack 1
Press the inner cavity connection of cavity 5；Annular boss 11 is arranged at 5 outer circle lower part of high-pressure chamber, there is cylinder jacket 9 except annular boss 11, cyclic annular
There are cylinder head 10, cylinder jacket 9 and cylinder head 10 to be fastened on workbench 3 on boss 11, the ring-type of 5 outer circle lower part of high-pressure chamber
Boss 11 is slidably matched to drive the piston of high-pressure chamber movement with 9 inner wall of cylinder jacket, is provided with and piston cavity of resorption in cylinder jacket 9
The stomata 12 communicated is provided with the stomata 13 communicated with piston upper chamber in cylinder head 10.
When it is implemented, the oriented electromagnetic field device above isostatic tooling includes being placed on sealing compression leg 4 i.e. with sealing
Compression leg 4 is the upper electromagnetic coil 14 of its iron core, and level is fixed on the upper magnet yoke plate 15 of 1 inside casing both sides of rack, upper electromagnetic coil 14
Upper end be fixed on upper magnet yoke plate 15, be provided with the through-hole for making sealing compression leg 4 pass freely through on upper magnet yoke plate 15, seal compression leg 4
Lower end be constructed to the pressure head for stretching into high-pressure chamber 5 and coordinating with 5 inner wall of high-pressure chamber；Oriented electromagnetic below isostatic tooling
Field device includes being located at 3 lower section of workbench, the lower core 16 on 1 inside casing bottom surface of rack and the lower electromagnetic wire being placed on lower core 16
17 are enclosed, the through-hole for making lower core 16 pass through is provided on workbench 3, the lower mouth of high-pressure chamber 5 is stretched into the upper end sealing of lower iron core 16
（I.e. the lower mouth of high-pressure chamber 5 is blocked in sealing）；Upper electromagnetic coil 14 is identical with the specification of lower electromagnetic coil 17, upper cylinder 2, sealing
The axis collinear of compression leg 4, lower core 16 and isostatic tooling；In this way, through rack 1, upper magnet yoke plate 15, sealing compression leg 4, lower iron
Core 16 forms the magnetic circuit of upper electromagnetic coil 14 and lower electromagnetic coil 17, and the upper end of the pressure head and lower core 16 that seal compression leg 4 is goed deep into
High-pressure chamber and forms powerful orientation magnetic as magnetic pole respectively as the lid and plug of sealing high-pressure chamber in high-pressure chamber
.The inner ring of upper electromagnetic coil 14 is fixed with the iron core guide sleeve 18 for being sleeved on 4 outside of sealing compression leg.Rack 1 uses steel wire winding
Structure.It is fixed in high-pressure chamber 5 by mould holder 19, by leaning on mould holder 19 that pattern 7 is fixed in high-pressure chamber 5.It is high
Pressure cavity 5, cylinder jacket 9 and cylinder head 10 are made of non-magnetic material, to further increase alignment magnetic field.
Further, the shape, volume size of the working portion of dry bag 6 are consistent with the die cavity of pattern 7, make the work of dry bag
Make part to sprawl along the tensioning of the mould intracavity wall of pattern under the action of negative pressure（Folding or fold are not generated）, further decrease dry
The working portion of bag just fills powder the influence of the shape after ram-jolt or tamping.The meaning that the film of dry bag is made refers to its thickness
Compared to existing dry bag much thinner.From the angle for uniformly transferring static pressure, film gets over Bao Yuehao.In view of strength problem, thin and thick
Selection it is related with the size of workpiece, big workpiece film dry bag will be thick.Its thickness can be selected in 0 .1-2mm ranges.
The rubber material of existing dry bag can be selected in film dry bag or engineering plastics are manufactured, but desired strength is some higher, and for example selection is high
The rubber film or plastic film of intensity are also contemplated that better new material occurs.Content above in relation to dry bag film belongs to this
The common knowledge or conventional selection of field technology personnel, so the concept of the application " film " is to those skilled in the art
Clearly.When it is implemented, pattern 7 is made of porous breathable metal material.
When it is implemented, the film that 6 working portion of dry bag is made is elastic film.In this way, can reduce to dry bag work department
Point harsh size, shape need, the mould intracavity wall under ram-jolt or tamping and suction function by flexible deformation along pattern
Tensioning is sprawled, to be easier to realize that the tensioning of dry bag thin film work part is sprawled.For example selection production sheath or balloon
It is exactly a good option that material, which makes film dry bag,.
Two side cylinders 20 are further fixed in rack 1, the piston rod end of two side cylinders 20 is fixed with sliding block 21, when
Seal after compression leg 4 driven and enter high-pressure chamber 5, two side cylinders 20 drive two sliding blocks 21 enter sealing 4 upper surface of compression leg with
On 1 inside casing of rack between plane.The upper cylinder 2 at 1 top of rack is if not the ultrahigh pressure cylinder specially designed, in pressurized operation
The huge axial direction that can not usually support the pressure medium in high-pressure chamber to generate the pressure head lower face for sealing compression leg 4 under state
Power；By increasing above structure, the huge axial force that pressure medium generates film dry bag 6 and magnetic powder when pressurizeing in high-pressure chamber
It acts on the pressure head lower face of sealing compression leg 4, this power is transmitted to further through sliding block 21 in rack 1.After high-pressure chamber drain charge,
Side cylinder 20 drives sliding block 21 to reset again, and after sliding block 21 resets, upper cylinder 2 can drive sealing compression leg 4 to reset again.
The course of work of film dry bag magnetic field equal static pressure press is as follows：
1）Pressure regulation oil cylinder 8 provides negative pressure by high-pressure hose to high-pressure chamber 5（0—-0.1Mpa）, in the work of atmospheric pressure
It is tightly attached on pattern 7 with the working portion of lower dry bag 6.The effect of pressure regulation oil cylinder 8 be regulate and control high-pressure chamber pressure from negative pressure to
Super-pressure, it is with common pressurizing cylinder and unprincipled difference from structure, and exactly pressure regulation oil cylinder is common pressurised oil
The flexible of cylinder uses.Pressure regulation oil cylinder high pressure chest and passes through high pressure on some centre position of its entire stroke with high-pressure chamber
It is full of pressure medium in the booster cavity of hose connection, the pressure of pressure medium in high-pressure chamber is zero at this time, if pressure regulation oil cylinder
Piston advance just for high-pressure chamber pressurize, retreat then be high-pressure chamber decompression become negative pressure.
2）It is fed slowly to dry bag 6 using dosing device, at the same time to two gas communicated with the upper and lower chamber of piston
Hole 12,13 alternately provides compressed air, drives 5 vertical tremor of high-pressure chamber, vibrations stop after the completion for charging, at this time in dry bag
Magnetic powder reaches tap density, is full of die cavity.
3）2 downlink of upper cylinder, driving sealing 4 downlink of compression leg is until its pressure head lower plane is close to film dry bag 6 and seals high pressure
Cavity 5 is suitable for reading, and then two side cylinders 20 drive two sliding blocks 21 to be inserted in sealing 4 upper surface of compression leg and plane on 1 inside casing of rack
Between.
4）Upper and lower electromagnetic coil 14,17 is powered, and powerful alignment magnetic field is formed in the die cavity of isostatic tooling.
5）The pressure conversion that pressure regulation oil cylinder 8 is provided by high-pressure hose to high-pressure chamber 5 is for normal pressure and gradually pressure
It is increased to super-pressure（100-300MPa）Reach the time of one section of setting of pressurize after setting pressure.
6）Reverse current appropriate is filled in the upper and lower power-off of electromagnetic coil 14,17 again, for the magnet demagnetization of oriented moulding.
7）Pressure regulation oil cylinder 8 gradually reduces pressure, and 5 drain charge of high-pressure chamber is until reply negative pressure.
8）Two side cylinders 20 drive two sliding blocks 21 to reset, later 2 uplink of upper cylinder, and driving sealing compression leg 4 resets.
9）With the magnet that automatic device or manual taking-up are molded.
10）With automatic device or manual cleanup die cavity, whole working cycles are completed.
Claims (7)
1. a kind of film dry bag magnetic field equal static pressure press, including rack（1）, rack（1）For frame structure, rack（1）Top is arranged
There is upper cylinder（2）, central rack is provided with workbench（3）, workbench（3）On be placed with isostatic tooling, upper cylinder（2）Work
Stopper rod passes through the upper beam of stirrup frame and is fixed with the sealing compression leg of isostatic tooling in its end（4）, in isostatic tooling
Above and below be respectively arranged with oriented electromagnetic field device；It is characterized in that, isostatic tooling includes high-pressure chamber（5）And high pressure
Dry bag in cavity（6）, dry bag（6）By the work of the support coupling part and lower part that are connect with high-pressure chamber inner wall sealing on top
Make part to constitute；High-pressure chamber（5）Inside it is further fixed on porous rigid pattern（7）, dry bag（6）Working portion be located at lean on
Mould（7）In die cavity, dry bag（6）Working portion be made of film, dry bag（6）The shape of working portion, volume size with lean on
Mould（7）Die cavity match so that be added dry bag powder ram-jolt or tamping after shape it is consistent with the mold cavity shapes of pattern；
Rack（1）Except also have pressure regulation oil cylinder（8）, pressure regulation oil cylinder（8）Pass through high-pressure hose and high-pressure chamber（5）Inner cavity connection；It is high
Press cavity（5）Annular boss is arranged at outer circle lower part（11）, annular boss（11）Except have cylinder jacket（9）, annular boss（11）On
There is cylinder head（10）, cylinder jacket（9）And cylinder head（10）It is fastened on workbench（3）On, high-pressure chamber（5）The ring-type of outer circle lower part
Boss（11）With cylinder jacket（9）Inner wall is slidably matched as the piston of driving high-pressure chamber movement, cylinder jacket（9）On be provided with and ring
Shape boss（11）And cylinder jacket（9）Between the stomata that communicates of cavity（12）, cylinder head（10）On be provided with and annular boss（11）
And cylinder head（10）Between the stomata that communicates of cavity（13）.
2. film dry bag magnetic field equal static pressure press according to claim 1, which is characterized in that the orientation above isostatic tooling
Electromagnetic field device includes being placed on sealing compression leg（4）Upper is to seal compression leg（4）For the upper electromagnetic coil of its iron core（14）, level is admittedly
Due to rack（1）The upper magnet yoke plate of inside casing both sides（15）, upper electromagnetic coil（14）Upper end be fixed on upper magnet yoke plate（15）On, on
Yoke plate（15）On be provided with and make sealing compression leg（4）The through-hole passed freely through seals compression leg（4）Lower end be constructed to stretch into high pressure chest
Body（5）And and high-pressure chamber（5）The pressure head of inner wall cooperation；Oriented electromagnetic field device below isostatic tooling includes being located at work
Platform（3）Lower section, rack（1）Lower core on inside casing bottom surface（16）Be placed on lower core（16）On lower electromagnetic coil（17）, work
Make platform（3）On be provided with and make lower core（16）The through-hole passed through, lower core（16）Upper end sealing stretch into high-pressure chamber（5）Under
Mouthful；Upper electromagnetic coil（14）With lower electromagnetic coil（17）Specification it is identical, upper cylinder（2）, sealing compression leg（4）, lower core（16）
And the axis collinear of isostatic tooling.
3. film dry bag magnetic field equal static pressure press according to claim 1 or 2, which is characterized in that in high-pressure chamber（5）It is interior solid
Surely have by mould holder（19）, by leaning on mould holder（19）By pattern（7）It is fixed on high-pressure chamber（5）It is interior.
4. film dry bag magnetic field equal static pressure press according to claim 1 or 2, which is characterized in that high-pressure chamber（5）, cylinder
Set（9）And cylinder head（10）It is made of non-magnetic material.
5. film dry bag magnetic field equal static pressure press according to claim 1 or 2, which is characterized in that dry bag（6）Working portion
Shape, volume size and pattern（7）Die cavity it is consistent, make the working portion of dry bag under the action of negative pressure along the mould of pattern
Cavity wall tensioning is sprawled.
6. film dry bag magnetic field equal static pressure press according to claim 1 or 2, which is characterized in that dry bag is made（6）Work department
The film divided is elastic film.
7. film dry bag magnetic field equal static pressure press according to claim 1 or 2, which is characterized in that in rack（1）On it is also fixed
There are two side cylinders（20）, two side cylinders（20）Piston rod end be fixed with sliding block（21）, when sealing compression leg（4）Driven into
Enter high-pressure chamber（5）Afterwards, two side cylinders（20）Drive two sliding blocks（21）Into sealing compression leg（4）Upper surface and rack（1）
On inside casing between plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610984891.8A CN106493361B (en) | 2016-11-09 | 2016-11-09 | Film dry bag magnetic field equal static pressure press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610984891.8A CN106493361B (en) | 2016-11-09 | 2016-11-09 | Film dry bag magnetic field equal static pressure press |
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| CN106493361B true CN106493361B (en) | 2018-08-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108555291B (en) * | 2018-06-20 | 2023-05-23 | 晋江市蓝腾新材料科技有限公司 | Novel dry bag type isostatic compaction machine |
| CN108682528B (en) * | 2018-07-28 | 2023-05-23 | 江西开源自动化设备有限公司 | Automatic production line for rare earth permanent magnet material |
| CN109332688B (en) * | 2018-10-18 | 2023-06-20 | 山西金开源实业有限公司 | Dry bag type isostatic press and charging method thereof |
| CN110534332B (en) * | 2019-09-29 | 2021-03-19 | 太原开元智能装备有限公司 | Sintered magnet preparation method and pressure forming equipment thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6815510A (en) * | 1968-10-31 | 1970-05-04 | ||
| JPH06116606A (en) * | 1992-10-05 | 1994-04-26 | Tdk Corp | Isostatic pressing machine provided with magnetic field generator |
| DE19722779A1 (en) * | 1997-06-02 | 1998-12-03 | Hoechst Ag | Shaped body made of textured superconductor material and process for its production |
| CN2551376Y (en) * | 2002-07-03 | 2003-05-21 | 董中天 | Isostatic press |
| CN202606858U (en) * | 2012-03-27 | 2012-12-19 | 安徽大地熊新材料股份有限公司 | Isostatic pressing bag of neodymium-iron-boron ring-shaped blank |
| CN103111618B (en) * | 2012-10-31 | 2015-06-10 | 宁波永久磁业有限公司 | Device of neodymium iron boron automatic suppressing orientation forming and method |
| 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 |
| CN103240413B (en) * | 2013-05-13 | 2016-05-18 | 宁海县大雅精密机械有限公司 | The preparation method of jacket for a kind of isostatic cool pressing |
| CN106001555B (en) * | 2016-07-13 | 2019-05-14 | 孔庆虹 | A kind of magnetic field powder molding method and device |
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