CN104874788A - Neodymium-iron-boron magnetic powder granulator - Google Patents
Neodymium-iron-boron magnetic powder granulator Download PDFInfo
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- CN104874788A CN104874788A CN201510292004.6A CN201510292004A CN104874788A CN 104874788 A CN104874788 A CN 104874788A CN 201510292004 A CN201510292004 A CN 201510292004A CN 104874788 A CN104874788 A CN 104874788A
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Abstract
The invention discloses a neodymium-iron-boron magnetic powder granulator, which comprises a rack, an ejector cylinder, a granulation kettle, a stirring motor, a shearing head, a microwave heating ring, a pressure sensor, a vacuum pump, a solvent tank, a cold water tank, a controller and an air vent valve, wherein the rack is welded from a metal material, and comprises a base, a lifting beam and a frame; the ejector cylinder and the controller are arranged on the frame; a microwave generator, the cold water tank, the vacuum pump and the solvent tank are arranged behind the base; the stirring motor is arranged on the lifting beam, and the stirring shaft is provided with the shearing head, and ascends and descends through the ejector cylinder; a power switch and a liquid crystal control screen are arranged on the controller. According to the neodymium-iron-boron magnetic powder granulator, the microwave heating ring is adopted for heating, a pressure signal of magnetic powder in the granulation kettle is detected by the pressure sensor, mixing granulation performance is improved by the shearing head, and the batch quality of the magnetic powder is high in reproducibility; the neodymium-iron-boron magnetic powder granulator is easy to operate, materials are blended in a vacuum environment, and a solvent can be effectively recycled; the neodymium-iron-boron magnetic powder granulator is free of environmental pollution, high in stirring efficiency and uniform in particle size distribution.
Description
Technical field
The present invention relates to a kind of magnetic granulating technique apparatus field, particularly a kind of NdFeB magnetic powder comminutor.
Background technology
Nd-Fe-B permanent magnet is the one of neodymium-iron-boron magnetic material, is the latest result of rare earth permanent-magnetic material development, is called as " magnetic king " due to the magnetic property of its excellence; Nd-Fe-B permanent magnet has high magnetic energy product and strong power, cost performance is high, the mechanical property that tool is good; The advantage of high-energy-density makes Nd-Fe-Bo permanent magnet material at modern industry simultaneously, be applied widely in electronic technology and in medical industry, thus making instrument and meter, electroacoustic motor, magnetic separation magnetization, medicine equipment, the miniaturization of the equipment such as Medical Devices, lightweight, slimming become possibility.
The first working procedure of bonded neodymium-iron-boron magnetic is exactly granulation, mainly the liquid material of neodymium-iron-boron powder and binding agent and solvent composition by together with row mixture, need manually binding agent to be melted in inside solvent acetone, and then acetone is proportionally added in powder, need in the process manually not stop to stir-fry magnetic so that liquid material can mix with magnetic fully, such mode not only labour intensity is large, and production efficiency is also very low.
In Nd-Fe-B permanent magnet prilling, usual magnetic mixing and blending machine is the special equipment of granulation, be applied to the batch mixing program in the compressing technique of bonded permanent magnet, traditional magnetic mixing and blending machine is that raw material Nd-Fe-B rare-earth permanent magnet powder is mixed under the protection of nitrogen with epoxy adhesive, there is following defect: 1, when producing in batches, magnetic granulation controls undesirable, magnetic powder particle batch quality poor reproducibility; 2, in order to prevent magnetic to be oxidized in whipping process, nitrogen protection be used, trivial operations; 3, in batch mixing process, solvent acetone volatilization loss can not reclaim effectively, causes waste; And cause environmental pollution, damage health of human body and jeopardize production safety; 4, powder is easily piled up, is blocked, stirring efficiency is low, and domain size distribution is uneven.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of NdFeB magnetic powder comminutor, for deficiency of the prior art, microwave ring is adopted to carry out indirect to material, the mobility of powdery fluids in powder process pot is detected by pressure sensor, design special cutting head and increase mixing granulation performance, the granulation of batch magnetic easily controls, magnetic powder particle batch quality favorable reproducibility; Simple to operate, vacuum environment mixture, solvent can effectively reclaim, recycling; Non-environmental-pollution, healthy and safe, powder is high without accumulation, choking phenomenon, stirring efficiency, even particle size distribution.
For achieving the above object; technical scheme of the present invention is as follows: a kind of NdFeB magnetic powder comminutor; comprise frame, eject cylinder, granulation pot, pot cover, stirring motor, shaft, cutting head, microwave generator, heating using microwave ring, pressure sensor, vavuum pump, solvent tank, cold water storage cistern, distribution box, controller, dog-house, observation window, vacuum meter, vent valve, pipeline, discharging opening, shearing rod, magnetic valve, it is characterized in that:
Described frame is that Metal Material Welding forms, and comprises base, lift beam and framework; Described base is arranged with multiple contour footing, described base is horizontally disposed with, and the vertical vertical welding of described framework is fixed on described base, and described framework side is fixedly installed and ejects cylinder, opposite side is provided with distribution box, and described distribution box front is fixedly installed controller; Described base rear is provided with microwave generator, cold water storage cistern, vavuum pump and solvent tank; Described lift beam is slidably socketed in described framework; Described lift beam is fixedly installed stirring motor, the base immediately below described stirring motor is fixedly installed granulation pot, described granulation pot comprises pot cover, pot body, the bottom of a pan; Described stirring motor is socketed by shaft and described pot cover bearing, cutting head is connected with below described shaft, described cutting head is arranged on described pot nside, be fixedly installed heating using microwave ring and pressure sensor below described pot cover, described heating using microwave ring, pressure sensor and described cutting head are crisscross arranged; Described pot cover, heating using microwave ring, pressure sensor are connected with stirring motor, lift beam integral type by shaft, described lift beam with eject cylinder and be connected, and realize descending operation by ejecting cylinder; Described pot body and the bottom of a pan are integral type interlayer drum-shaped structure, and described interlayer is communicated with cold water storage cistern with magnetic valve by pipeline, and described pipeline is provided with water circulating pump; Described pot cover top is provided with dog-house, observation window, vacuum interface, vent valve, microwave interface and sensor interface; Described vacuum interface is connected with solvent tank and vavuum pump, and described vacuum interface is provided with vacuum meter; Described heating using microwave ring is electrically connected by microwave interface and described microwave generator, described pressure sensor is electrically connected by sensor interface and controller, described controller and distribution box, stirring motor, ejects cylinder, water circulating pump, microwave generator, pressure sensor, vavuum pump, magnetic valve and vent valve electric signal and is connected; The described the bottom of a pan is provided with discharging opening, is provided with rewinding case below described discharging opening, described controller is provided with power switch and liquid crystal manipulation screen.
Vaccum seal ring is provided with between the pot body of described granulation pot and pot cover.
Described cutting head rotates under the transmission of shaft, and described shaft has two kinds of stir modes under stirring motor drives, and one is that one direction is rotated, and another kind is forward and reverse alternate rotation.
Described cutting head is provided with many and shears rod, the excellent cross sectional shape of described shearing is triangle, and a described leg-of-mutton plane and face, the bottom of a pan be arranged in parallel.
Described heating using microwave ring, pressure sensor outer setting have hexagon protective metal shell, described hexagon protective metal shell is interconnected with shearing rod, described hexagon sheath is fixedly assemblied on pot cover, the rotary motion under shaft drives of described shearing rod, the shear action of triangle cutting head stirs magnetic material and liquid material jointly with the retardation of hexagon sheath, mix, fragmentation and granulation.
The pressure signal of described pressure sensor is sent to controller, and signal fluctuation change is presented on liquid crystal manipulation screen, by the fluid pressure signal fluctuation changing condition on liquid crystal manipulation screen, determines magnetic powdery row material characteristic in granulation pot.
Heating using microwave ring is inner overall heating mode, cools coordinate with pot interlayer body, forms heating and regulates and controls with cooling simultaneously, guarantee that granulation pot materials inside temperature is effectively controlled, under avoiding high shear agitation, and the very fast intensification of magnetic material.
Vavuum pump is connected with solvent tank, guarantees the Collection and utilization of solvent, cost-saving, reduces environmental pollution; The vacuum of granulation pot and cooling, can avoid high temperature to ignite magnetic material.
Prilling flow process of the present invention is:
The first working procedure of NdFeB magnetic powder granulation is exactly granulation, neodymium iron boron is mixed into magnetic material according to proportioning, again binding agent is dissolved in solvent acetone and makes liquid material, and then by magnetic material and liquid material according to process ratio with sequentially pass through dog-house and join in granulation pot, by shear agitation process, magnetic material and liquid material are fully mixed, and control temperature and mixing time, the pressure signal change of monitoring magnetic material, carries out granulation; Concrete technology flow process is:
1, prepare burden: according to processing compound preparation neodymium-iron-boron powder; According to technique than row preparation binding agent and acetone liquid material;
2, feed: a certain amount of magnetic material is loaded into granulation pot from dog-house; Control temperature is lower than 50 degree;
3, premixed: open vacuum pump evacuation, opens the heating of heating using microwave ring; Open stirring motor to stir; Doing time in advance is 4-10 minutes, on controller till pressure sensor pressure stability;
4, liquid material is added: add amounting to 50% of liquid material amount from dog-house;
5, just mix: keep temperature 50 degree, unidirectional to be uniformly mixed the time be 6-12 minutes;
6, recycling design: under vacuum condition, monitor force sensor signal, until stable, solvent volatilization is also reclaimed to solvent tank condensation by vacuum system;
7, liquid material is added: add remaining liquid material 50% from dog-house;
8, shear-mixed: control temperature 50 degree, forward and reverse alternate agitation, mixing time is 3-8 minutes; Till monitor force sensor signal is stable;
9, granulation: cooling reduces temperature, forward and reverse alternate agitation, and mixing time is 15-25 minutes, till monitor force sensor signal is stable;
10, discharging: close vavuum pump, open vent valve, open bottom and be discharged to feed box.
Pass through technique scheme, the beneficial effect of technical solution of the present invention is: adopt heating using microwave ring to carry out indirect to material, the pressure change of magnetic material in granulation pot is detected by pressure sensor and controller, automatic control mixing speed and direction, design special cutting head and increase mixing granulation performance, the granulation of batch magnetic easily controls, magnetic powder particle batch quality favorable reproducibility; Simple to operate, vacuum environment mixture, solvent can effectively reclaim, recycling; Non-environmental-pollution, healthy and safe, powder is high without accumulation, choking phenomenon, stirring efficiency, even particle size distribution.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of NdFeB magnetic powder comminutor front view schematic diagram disclosed in the embodiment of the present invention;
Fig. 2 is a kind of NdFeB magnetic powder comminutor top view schematic diagram disclosed in the embodiment of the present invention;
Fig. 3 is a kind of NdFeB magnetic powder comminutor cutting head schematic diagram disclosed in the embodiment of the present invention;
Fig. 4 is a kind of NdFeB magnetic powder comminutor cutting head AA generalized section disclosed in the embodiment of the present invention.
Numeral and the corresponding component title represented by letter in figure:
1. frame 2. ejects cylinder 3. granulation pot 4. pot cover
5. stirring motor 6. shaft 7. cutting head 8. microwave generator
9. heating using microwave ring 10. pressure sensor 11. vavuum pump 12. solvent tank
13. cold water storage cistern 14. distribution box 15. controller 16. dog-houses
17. observation window 18. vacuum meter 19. vent valve 20. pipelines
21. discharging openings 22. shear excellent 23. magnetic valves
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
According to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; the invention provides a kind of NdFeB magnetic powder comminutor, comprise frame 1, eject cylinder 2, granulation pot 3, pot cover 4, stirring motor 5, shaft 6, cutting head 7, microwave generator 8, heating using microwave ring 9, pressure sensor 10, vavuum pump 11, solvent tank 12, cold water storage cistern 13, distribution box 14, controller 15, dog-house 16, observation window 17, vacuum meter 18, vent valve 19, pipeline 20, discharging opening 21, shear rod 22, magnetic valve 23.
Described frame 1 forms for Metal Material Welding, comprises base, lift beam and framework; Described base is arranged with multiple contour footing, described base is horizontally disposed with, and the vertical vertical welding of described framework is fixed on described base, and described framework side is fixedly installed and ejects cylinder 2, opposite side is provided with distribution box 14, and described distribution box 14 front is fixedly installed controller 15; Described base rear is provided with microwave generator 8, cold water storage cistern 13, vavuum pump 11 and solvent tank 12; Described lift beam is slidably socketed in described framework; Described lift beam is fixedly installed stirring motor 5, the base immediately below described stirring motor 5 is fixedly installed granulation pot 3, described granulation pot 3 comprises pot cover 4, pot body, the bottom of a pan; Described stirring motor 5 is socketed by shaft 6 and described pot cover 4 bearing, cutting head 7 is connected with below described shaft 6, described cutting head 7 is arranged on described pot nside, be fixedly installed heating using microwave ring 9 and pressure sensor 10 below described pot cover 4, described heating using microwave ring 9, pressure sensor 10 are crisscross arranged with described cutting head 7; Described pot cover 4, heating using microwave ring 9, pressure sensor 10 are connected with stirring motor 5, lift beam integral type by shaft 6, described lift beam with eject cylinder 2 and be connected, and realize descending operation by ejecting cylinder 2; Described pot body and the bottom of a pan are integral type interlayer drum-shaped structure, and described interlayer is communicated with cold water storage cistern 13 with magnetic valve 23 by pipeline 20, and described pipeline 20 is provided with water circulating pump; Described pot cover 4 top is provided with dog-house 16, observation window 17, vacuum interface, vent valve 19, microwave interface and sensor interface; Described vacuum interface is connected with solvent tank 12 and vavuum pump 11, described vacuum interface is provided with vacuum meter 18; Described heating using microwave ring 9 is electrically connected by microwave interface and described microwave generator 8, described pressure sensor 10 is electrically connected by sensor interface and controller 15, described controller 15 and distribution box 14, stirring motor 5, ejects cylinder 2, water circulating pump, microwave generator 9, pressure sensor 10, vavuum pump 11, magnetic valve 23 and vent valve 19 electric signal and is connected; The described the bottom of a pan is provided with discharging opening 21, is provided with rewinding case below described discharging opening 21, described controller 15 is provided with power switch and liquid crystal manipulation screen.
Vaccum seal ring is provided with between the pot body of described granulation pot 3 and pot cover 4.
Described cutting head 7 rotates under the transmission of shaft 6, and described shaft 6 has two kinds of stir modes under stirring motor 5 drives, and one is that one direction is rotated, and another kind is forward and reverse alternate rotation.
Described cutting head 7 is provided with many and shears rod 22, excellent 22 cross sectional shapes of described shearing are triangle, and a described leg-of-mutton plane and face, the bottom of a pan be arranged in parallel.
Described heating using microwave ring 9, pressure sensor 10 outer setting have hexagon protective metal shell, described hexagon protective metal shell is interconnected with shearing rod 22, described hexagon sheath is fixedly assemblied on pot cover 4, described shearing rod 22 rotary motion under shaft 6 drives, the shear action of triangle cutting head 7 stirs magnetic material and liquid material jointly with the retardation of hexagon sheath, mix, fragmentation and granulation.
The pressure signal of described pressure sensor 10 is sent to controller 15, and signal fluctuation change is presented on liquid crystal manipulation screen, by the pressure signal fluctuation changing condition on liquid crystal manipulation screen, determines magnetic powdery row material characteristic in granulation pot.
Heating using microwave ring 9 is inner overall heating mode, cools coordinate with pot interlayer body, forms heating and regulates and controls with cooling simultaneously, guarantee that granulation pot 3 materials inside temperature is effectively controlled, under avoiding high shear agitation, and the very fast intensification of magnetic material.
Vavuum pump 11 is connected with solvent tank 12, guarantees the Collection and utilization of solvent, cost-saving, reduces environmental pollution; The vacuum of granulation pot 3 and cooling, can avoid high temperature to ignite magnetic material.
Concrete operation step of the present invention is:
The first working procedure of NdFeB magnetic powder granulation is exactly granulation, neodymium iron boron is mixed into magnetic material according to proportioning, again binding agent is dissolved in solvent acetone and makes liquid material, and then by magnetic material and liquid material according to process ratio with sequentially pass through dog-house 16 and join in granulation pot 3, by shear agitation process, magnetic material and liquid material are fully mixed, and control temperature and mixing time, the pressure signal change of monitoring magnetic material, carries out granulation; Concrete technology flow process is:
1, prepare burden: according to processing compound preparation neodymium-iron-boron powder; According to technique than row preparation binding agent and acetone liquid material;
2, feed: a certain amount of magnetic material is loaded into granulation pot 3 from dog-house 16; Control temperature is 40 degree;
3, premixed: open vavuum pump 11 and vacuumize, opens heating using microwave ring 9 and heats; Open stirring motor to stir; Doing time in advance is 5 minutes, on controller till pressure sensor pressure stability;
4, liquid material is added: add amounting to 50% of liquid material amount from dog-house;
5, just mix: keep temperature 50 degree, unidirectional to be uniformly mixed the time be 8 minutes;
6, recycling design: under vacuum condition, monitor force sensor signal, until stable, solvent volatilization is also reclaimed to solvent tank condensation by vacuum system;
7, liquid material is added: add remaining liquid material 50% from dog-house;
8, shear-mixed: control temperature 50 degree, forward and reverse alternate agitation, mixing time is 4 minutes; Till monitor force sensor signal is stable;
9, granulation: cooling reduces temperature, forward and reverse alternate agitation, and mixing time is 20 minutes, till monitor force sensor signal is stable;
10, discharging: close vavuum pump, open vent valve, open bottom and be discharged to feed box.
By above-mentioned specific embodiment, the invention has the beneficial effects as follows: adopt heating using microwave ring to carry out indirect to material, the pressure change of magnetic material in granulation pot is detected by pressure sensor and controller, automatic control mixing speed and direction, design special cutting head and increase mixing granulation performance, the granulation of batch magnetic easily controls, magnetic powder particle batch quality favorable reproducibility; Simple to operate, vacuum environment mixture, solvent can effectively reclaim, recycling; Non-environmental-pollution, healthy and safe, powder is high without accumulation, choking phenomenon, stirring efficiency, even particle size distribution.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a NdFeB magnetic powder comminutor, it is characterized in that, comprise frame, eject cylinder, granulation pot, pot cover, stirring motor, shaft, cutting head, microwave generator, heating using microwave ring, pressure sensor, vavuum pump, solvent tank, cold water storage cistern, distribution box, controller, dog-house, observation window, vacuum meter, vent valve, pipeline, discharging opening, shearing rod, magnetic valve; Described frame is that Metal Material Welding forms, and comprises base, lift beam and framework; Described base is arranged with multiple contour footing, described base is horizontally disposed with, and the vertical vertical welding of described framework is fixed on described base, and described framework side is fixedly installed and ejects cylinder, opposite side is provided with distribution box, and described distribution box front is fixedly installed controller; Described base rear is provided with microwave generator, cold water storage cistern, vavuum pump and solvent tank; Described lift beam is slidably socketed in described framework; Described lift beam is fixedly installed stirring motor, the base immediately below described stirring motor is fixedly installed granulation pot, described granulation pot comprises pot cover, pot body, the bottom of a pan; Described stirring motor is socketed by shaft and described pot cover bearing, cutting head is connected with below described shaft, described cutting head is arranged on described pot nside, be fixedly installed heating using microwave ring and pressure sensor below described pot cover, described heating using microwave ring, pressure sensor and described cutting head are crisscross arranged; Described pot cover, heating using microwave ring, pressure sensor are connected with stirring motor, lift beam integral type by shaft, described lift beam with eject cylinder and be connected, and realize descending operation by ejecting cylinder; Described pot body and the bottom of a pan are integral type interlayer drum-shaped structure, and described interlayer is communicated with cold water storage cistern with magnetic valve by pipeline, and described pipeline is provided with water circulating pump; Described pot cover top is provided with dog-house, observation window, vacuum interface, vent valve, microwave interface and sensor interface; Described vacuum interface is connected with solvent tank and vavuum pump, and described vacuum interface is provided with vacuum meter; Described heating using microwave ring is electrically connected by microwave interface and described microwave generator, described pressure sensor is electrically connected by sensor interface and controller, described controller and distribution box, stirring motor, ejects cylinder, water circulating pump, microwave generator, pressure sensor, vavuum pump, magnetic valve and vent valve electric signal and is connected; The described the bottom of a pan is provided with discharging opening, is provided with rewinding case below described discharging opening, described controller is provided with power switch and liquid crystal manipulation screen.
2. a kind of NdFeB magnetic powder comminutor according to claim 1, is characterized in that, is provided with vaccum seal ring between the pot body of described granulation pot and pot cover.
3. a kind of NdFeB magnetic powder comminutor according to claim 1; it is characterized in that, described cutting head rotates under the transmission of shaft, and described shaft has two kinds of stir modes under stirring motor drives; one is that one direction is rotated, and another kind is forward and reverse alternate rotation.
4. a kind of NdFeB magnetic powder comminutor according to claim 1, is characterized in that, described cutting head is provided with many and shears rod, the excellent cross sectional shape of described shearing is triangle, and a described leg-of-mutton plane and face, the bottom of a pan be arranged in parallel.
5. a kind of NdFeB magnetic powder comminutor according to claim 1; it is characterized in that; described heating using microwave ring, pressure sensor outer setting have hexagon protective metal shell; described hexagon protective metal shell is interconnected with shearing rod; described hexagon sheath is fixedly assemblied on pot cover; the rotary motion under shaft drives of described shearing rod, the shear action of triangle cutting head stirs magnetic material and liquid material jointly with the retardation of hexagon sheath, mix, fragmentation and granulation.
6. a kind of NdFeB magnetic powder comminutor according to claim 1; it is characterized in that; the pressure signal of described pressure sensor is sent to controller; and signal fluctuation change is presented on liquid crystal manipulation screen; by the fluid pressure signal fluctuation changing condition on liquid crystal manipulation screen, determine magnetic powdery row material characteristic in granulation pot.
7. a kind of NdFeB magnetic powder comminutor according to claim 1, it is characterized in that, prilling flow process is:
7.1, prepare burden: according to processing compound preparation neodymium-iron-boron powder; According to technique than row preparation binding agent and acetone liquid material;
7.2, feed: be loaded into granulation pot by quantitative magnetic material from dog-house, control temperature is lower than 50 degree;
7.3, premixed: open vacuum pump evacuation, opens the heating of heating using microwave ring; Open stirring motor to stir; Doing time in advance is 4-10 minutes, on controller till pressure sensor pressure stability;
7.4, liquid material is added: add amounting to 50% of liquid material amount from dog-house;
7.5, just mix: keep temperature 50 degree, unidirectional to be uniformly mixed the time be 6-12 minutes;
7.6, recycling design: under vacuum condition, monitor force sensor signal, until stable, solvent volatilization is also reclaimed to solvent tank condensation by vacuum system;
7.7, liquid material is added: add remaining liquid material 50% from dog-house;
7.8, shear-mixed: control temperature 50 degree, forward and reverse alternate agitation, mixing time is 3-8 minutes; Till monitor force sensor signal is stable;
7.9, granulation: cooling reduces temperature, forward and reverse alternate agitation, and mixing time is 15-25 minutes, till monitor force sensor signal is stable;
7.10, discharging: close vavuum pump, open vent valve, open bottom and be discharged to feed box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510292004.6A CN104874788A (en) | 2015-06-01 | 2015-06-01 | Neodymium-iron-boron magnetic powder granulator |
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| CN201510292004.6A CN104874788A (en) | 2015-06-01 | 2015-06-01 | Neodymium-iron-boron magnetic powder granulator |
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| CN107051329A (en) * | 2017-06-23 | 2017-08-18 | 江阴市创裕机械有限公司 | A kind of mixing balling-up instrument for mixed granulation machine |
| CN107961712A (en) * | 2017-12-09 | 2018-04-27 | 鲁忠华 | A kind of energy-saving agitator tank stirring technique |
| CN112563009A (en) * | 2019-09-10 | 2021-03-26 | 宁波科宁达工业有限公司 | Method for preparing sintered magnet by utilizing recovered pressed compact |
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| JP2004235458A (en) * | 2003-01-30 | 2004-08-19 | Neomax Co Ltd | Method of manufacturing rare earth-based bonded magnet |
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| CN102825249A (en) * | 2012-09-11 | 2012-12-19 | 成都图南电子有限公司 | Magnetic powder warm granulation device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107051329A (en) * | 2017-06-23 | 2017-08-18 | 江阴市创裕机械有限公司 | A kind of mixing balling-up instrument for mixed granulation machine |
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| CN112563009B (en) * | 2019-09-10 | 2024-04-02 | 宁波科宁达工业有限公司 | Method for preparing sintered magnet by recycling pressed compact |
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Application publication date: 20150902 |