CN200947369Y - Aeolotropy sintering rare earth permanent magnet oriented molding device - Google Patents
Aeolotropy sintering rare earth permanent magnet oriented molding device Download PDFInfo
- Publication number
- CN200947369Y CN200947369Y CN 200620021585 CN200620021585U CN200947369Y CN 200947369 Y CN200947369 Y CN 200947369Y CN 200620021585 CN200620021585 CN 200620021585 CN 200620021585 U CN200620021585 U CN 200620021585U CN 200947369 Y CN200947369 Y CN 200947369Y
- Authority
- CN
- China
- Prior art keywords
- coil
- coils
- current source
- magnetic field
- earth permanent
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
An anisotropic sintered rare-earth permanent magnet orientation forming device is provided, which relates to orientation forming device of rare-earth sintered permanent magnet. For resolving a problem that prior art can not gain an ideal demagnetization when accomplishing the orientation of the magnetic field, the utility model comprises a mould punch (1), a punch-under (2), a die sets (3), a coil (4) and a current source (5), wherein an under tip of the mould punch and an upper tip of the punch-under are positioned separately on the top and the under part of die set, the outside of the die set is winding the coil, the two ends of the coil are separately connected with the two terminals of the electric current source, current from the electric current source flows into the coil to form sinusoidal oscillation damping magnetic field. The sinusoidal oscillation damping magnetic field formed by the coil of the utility model can accomplish the two processes of the orientation of the magnetic field and ideal demagnetization at the same time, making magnet alloy powder in the die set be a compression molded after orientation in the sinusoidal oscillation damping magnetic field, which needs not carry on the process of demagnetizing after orientation forming, thus manufacturing high-performance anisotropic sintered rare-earth permanent magnet with low cost.
Description
Technical field
The utility model relates to a kind of anisotropy sintered rare-earth permanent magnetic body oriontation shaping device.
Background technology
Current anisotropic permanent magnet roughly is divided into bonded permanent magnet and sintered magnet, need be with powder through magnetic field orientating and compression forming when making above-mentioned permanent magnet.Because the anisotropy sintered magnet is when compression moulding, need add alignment magnetic field, so the formed body of making has remanent magnetism after the orientation magnetization, processings of need demagnetizing, but realize that demagnetization fully is very difficult.Formed body is very soft and intensity is lower, and remanent magnetism can make the demoulding of the formed body trouble that becomes, and demagnetization not only is difficult to eliminate clean remanent magnetism separately, also can cause the corner breakage of formed body; In actual mechanical process, for enhancing productivity, formed body is often arranged a lot, each other can be owing to attracting collision that phenomenons such as breakage take place; The Magnaglo that is scattered on the other hand around the die cavity can be powerful attached on the formed body, and it is concavo-convex to cause permanent magnet surfaces behind the sintering to form, and then increase the time of the grinding step behind the sintering, makes to produce efficient in batches and reduce greatly.
For improving the degree of orientation of anisotropic magnet powder in the magnetic field orientating forming process, need apply stronger magnetic field orientating, generally adopt D.C. magnetic field orientation or pulsed magnetic field orientation.But the problem of bringing is, alignment magnetic field is strong more, and then remanent magnetism is strong more.This problem can be easier to solve in the oriented moulding process of ferrite sintered body, and the coercive force of ferrite permanent-magnet powder and permanent magnet is lower, is easy to demagnetization behind the oriented moulding.But making in the process of all kinds of rare earth permanent-magnetic materials at present, meeting difficulty on the demagnetization operation behind the oriented moulding, because the coercive force of rare earth material is very high, the demagnetization problem becomes a known difficult problem.
At present, for removing the remanent magnetism after orientation is magnetized, generally the method for Cai Yonging is to apply the dc magnetization field opposite with the magnet remanence direction or alternation decay magnetic field to make formed body be demagnetized, but needing repeatedly examination repeatedly to move back just, the former can reduce these remanent magnetism, even not only can not reduce remanent magnetism, cause reciprocal magnetization on the contrary; The latter for the rare earth permanent-magnetic material of all kinds of high-coercive forces, does not reach the purpose that makes formed body be able to complete degaussing because general technology can't provide the demagnetizing field of enough intensity, wave number and lapse rate.
In addition, when adopting stronger magnetic field orientating, the remanent magnetism of magnet powder particle can form reunites and bridge joint.Alignment magnetic field is strong more, and then remanent magnetism is strong more, and reunion and bridge joint phenomenon are serious more, directly influenced the raising of the degree of orientation, simultaneously, the magnetic bridge joint can influence the even filling of magnet powder and cause bigger space, make formed body density and uniformity after the compacting reduce, can not obtain high magnetic property.
The utility model content
For solving prior art can not obtain desirable demagnetization when finishing magnetic field orientating problem, the utility model provides a kind of anisotropy sintered rare-earth permanent magnetic body oriontation shaping device, it can provide the magnetic field intensity of high-orientation, can avoid the problem that produces owing to residual magnetization again.The utility model comprises patrix drift 1, counterdie drift 2, die sleeve 3, coil 4 and current source 5, the upper end of the lower end of patrix drift 1 and counterdie drift 2 places the upper and lower in the die sleeve 3 respectively, the outer felt of described die sleeve 3 is wound with coil 4, the two ends of described coil 4 are connected with two terminals of current source 5 respectively, and the electric current that current source 5 produces is passed into and forms pure oscillation amount of decrease magnetic field in the coil 4.Current source 5 described in the utility model is made up of the pulse power 51, the first mutual inductance solenoid 52, first capacitor 53, the described first mutual inductance solenoid 52 is made up of the first primary coil 52-1 and the first secondary coil 52-2, the first and last end of the first primary coil 52-1 connects two outputs of the pulse power 51 respectively, and the end of the first secondary coil 52-2 is connected with an end of first capacitor 53; The two ends of coil 4 are connected with the other end of the first secondary coil 52-2 and the other end of first capacitor 53 respectively; Described current source 5 can also be by DC power supply 54, second mutual inductor 55, main switch K1, the short switch K2 and second capacitor 56 are formed, second mutual inductor 55 is to be wound on the hollow mutual inductor that forms together by the second primary coil 55-1 and second subprime coil 55-2, an output of DC power supply 54 connects the end of main switch K1, the other end of main switch K1 connects the end of the second primary coil 55-1 and the end of short switch K2, the other end of short switch K2 connects the other end of DC current source and the other end of the second primary coil 55-1, and the first and last end of second subprime coil 55-2 connects the two ends of second capacitor 56 respectively; Coil 4 is connected in parallel on the two ends of second capacitor 56.
The pure oscillation amount of decrease magnetic field that coil 4 described in the utility model produces, can finish magnetic field orientating and two processes of desirable demagnetization simultaneously, make the magnet alloy powder in die sleeve 3 be compressed moulding after the orientation under this pure oscillation amount of decrease magnetic field, simultaneously, this pure oscillation amount of decrease magnetic field need decay to zero, needn't carry out the demagnetization operation behind the oriented moulding, the surperficial remanent magnetic flux density of oriented moulding aftershaping body is below 3 Gausses; Simultaneously, the Unit Weight density and the uniformity of formed body all increase, anisotropy sintered rare-earth permanent magnetic body that can low-cost manufacturing property excellence; Productivity ratio significantly improves, stable and reliable product quality.
Description of drawings
Fig. 1 is pure oscillation amount of decrease field waveform figure described in the utility model, Fig. 2 is an overall structure schematic diagram of the present utility model, Fig. 3 is the structural representation of embodiment two, Fig. 4 is the structural representation of embodiment three, Fig. 5 is the structural representation of embodiment four, Fig. 6 is to use embodiment one, two, the schematic diagram of the anisotropy sintering rare-earth magnet of three and four several main shapes of making, Fig. 7 is the structural representation of embodiment five, Fig. 8 is to use the schematic diagram of the anisotropy sintering rare-earth magnet of several main shapes that embodiment five makes, Fig. 9 is the structural representation of embodiment six, Figure 10 is to use the schematic diagram of the round table-like radial radiation anisotropy sintering rare-earth magnet of embodiment six manufacturings, Figure 11 is the structural representation of embodiment seven, the schematic diagram of the anisotropy sintering rare-earth magnet ring that the radial radiation that Figure 12 is to use embodiment seven to make is orientated, Figure 13 is the structural representation of embodiment eight, Figure 14 is the A-A cutaway view of Figure 13, the round table-like radial multi-pole that Figure 15 is to use embodiment seven to make is orientated the schematic diagram of anisotropy sintered rare-earth permanent magnetic body, and Figure 16 is the schematic diagram that round table-like anisotropy sintering rare-earth formed body is processed into the different permanent-magnetic clamps of diameter.(direction shown in the filled arrows is a pressing direction in each accompanying drawing, and direction shown in the hollow arrow is the magnetic aligning direction)
Embodiment
Embodiment one: (referring to Fig. 1, Fig. 2, Fig. 6) present embodiment is made up of patrix drift 1, counterdie drift 2, die sleeve 3, coil 4 and current source 5, the upper end of the lower end of patrix drift 1 and counterdie drift 2 places the upper and lower in the die sleeve 3 respectively, the outer felt of described die sleeve 3 is wound with coil 4, the two ends of described coil 4 are connected with two terminals of current source 5 respectively, and the electric current that current source 5 produces is passed into and forms pure oscillation amount of decrease magnetic field in the coil 4.
Embodiment two: the difference of (referring to Fig. 3) present embodiment and embodiment one is that it also comprises the 3rd electric capacity 6 and No. nine coils 7, described No. nine coils 7 are arranged between the interior winding face of the face of cylinder of die sleeve 3 and coil 4, and No. nine coils 7 and the 3rd electric capacity 6 form closed-loop paths; Described current source 5 is pulse powers.Other composition is identical with embodiment one with annexation.
Embodiment three: the difference of (referring to Fig. 4) present embodiment and embodiment one is that described current source 5 is made up of the pulse power 51, the first mutual inductance solenoid 52, first capacitor 53, the described first mutual inductance solenoid 52 is made up of the first primary coil 52-1 and the first secondary coil 52-2, the first and last end of the first primary coil 52-1 connects two outputs of the pulse power 51 respectively, and the end of the first secondary coil 52-2 is connected with an end of first capacitor 53; The two ends of coil 4 are connected with the other end of the first secondary coil 52-2 and the other end of first capacitor 53 respectively.Other composition is identical with embodiment one with annexation.
Embodiment four: (referring to Fig. 5) present embodiment and embodiment one or twos' difference is that described current source 5 is by DC power supply 54, second mutual inductor 55, main switch K1, the short switch K2 and second capacitor 56 are formed, second mutual inductor 55 is to be wound on the hollow mutual inductor that forms together by the second primary coil 55-1 and second subprime coil 55-2, an output of DC power supply 54 connects the end of main switch K1, the other end of main switch K1 connects the end of the second primary coil 55-1 and the end of short switch K2, the other end of short switch K2 connects the other end of DC current source and the other end of the second primary coil 55-1, and the first and last end of second subprime coil 55-2 connects the two ends of second capacitor 56 respectively; Coil 4 is connected in parallel on the two ends of second capacitor 56.Other composition is identical with embodiment one or two with annexation.
To embodiment four, the magnetic field orientating direction is parallel with pressing direction in embodiment one, can make cylindric or block and anisotropy sintered permanent magnet (as shown in Figure 6) such as sheet, watt shape, ring-type by above-mentioned execution mode.Annular magnet among Fig. 6 can be inserted plug up and down in the central authorities of cylindric molding space, because orientation principle is identical with mode, does not give unnecessary details and illustrates at this.
Embodiment five: (referring to Fig. 7, Fig. 8) present embodiment and embodiment one, two or threes' difference is that described coil 4 forms by two, be respectively a coil 4-1 and No. two coil 4-2, coil 4-1 and No. two coil 4-2 are separately positioned on the both sides of die sleeve 3, two coil first and last ends link to each other respectively and are connected with two terminals of current source 5 respectively, and magnetic direction unanimity and described magnetic direction that two coils form are vertical with the pressing direction of permanent magnet.Other composition is identical with embodiment one, two or three with annexation.The magnetic field orientating direction of coil inside is vertical with the direction of action of last low punch in the present embodiment, do not need to consider repeatedly orientation, preferred orientation number of times is to get final product for 2-3 time, thus anisotropy sintered rare-earth permanent magnetic body that can higher production efficiency acquisition high-orientation.Figure 8 shows that the anisotropy sintered magnet that uses several main shape that present embodiment can make and direction of orientation (during use along this direction magnetization), wherein annular magnet can be used for the two poles of the earth magnetization use, as stator magnet, can replace the stator magnet of the bipolar magnetic tile structure DC electromotor with brush of current market mainstream application as DC electromotor with brush.
Embodiment six: (referring to Fig. 9, Figure 10) present embodiment and embodiment one, two or three difference is that it also comprises filler operating platform 8, last connector 9 and following connector 10, the middle part of filler operating platform 8 has die sleeve installing hole 8-1, die sleeve 3 is arranged in the die sleeve installing hole 8-1, described coil 4 is formed by two, be respectively No. three coil 4-3 and No. four coil 4-4, No. three coil 4-3 is fixedlyed connected with patrix drift 1 by last connector 9 respectively, connector 10 was fixedlyed connected with counterdie drift 2 under No. four coil 4-4 passed through respectively, No. three coil 4-3 and No. four coil 4-4 go up respectively, be arranged on the outside of die sleeve 3 down, two coil first and last ends link to each other respectively and are connected with two terminals of current source 5 respectively, and the transient magnetic field direction that two coils form is relatively and in the magnetic field of two magnetic field intersections formation radial radiations.Other composition is identical with embodiment one, two or three with annexation.Described No. three coil 4-3 of present embodiment and No. four coil 4-4 around to identical, then two coil first and last ends link to each other and are connected with two terminals of current source 5 respectively; Described No. three coil 4-3 and No. four coil 4-4 around on the contrary, then two first head ends of coil link to each other and are connected with two terminals of current source 5 respectively.Can form the magnetic field of radial radiation two magnetic field intersections.The connected mode of above-mentioned coil belongs to parallel way.Also can adopt the mode of being connected in series, if promptly described No. three coil 4-3 and No. four coil 4-4 around to identical, then two coil first and last ends series connection backs are connected with two terminals of current source 5; If described No. three coil 4-3 and No. four coil 4-4 around on the contrary, then two the first head ends series connection of coil backs are connected with two terminals of current source 5.Present embodiment can be used for processing round table-like radial radiation orientation rare-earth permanent magnet.Figure 10 shows that the anisotropy sintering rare-earth magnet (getting final product along this direction magnetization during use) of the round table-like radial radiation orientation of using the present embodiment manufacturing.
Embodiment seven: the difference of (referring to Figure 11, Figure 12) present embodiment and embodiment six is that it also comprises plug 21 and following plug 23, described patrix drift 1 and counterdie drift 2 are tubular, and last plug 21 and following plug 23 are separately positioned in patrix drift 1 and the counterdie drift 2.Other composition is identical with embodiment six with annexation.The outer circumference surface of the inner peripheral surface of present embodiment die sleeve 3 and last plug 21 and following plug 23 forms the tubular molding space, can be used for processing radial radiation orientation permanent-magnet rare-earth ring product; At first, with quantitative anisotropy magnet powder be filled in the die sleeve 3, orientation is 1 time under pine dress state, patrix drift 1 moves downward jointly with last plug 21 then, makes powder particle by compacting slightly, applies orientation again 1 time, the degree of orientation obtains further raising; At last, patrix drift 1 and counterdie drift 2 carry out two-way compacting simultaneously, can apply orientation again 1-2 time in the process of compacting.The radial radiation that can directly make high-orientation by present embodiment is orientated the ring-type formed body, can obtain high performance radial radiation orientation permanent-magnet rare-earth ring product after sintering and Ageing Treatment and Surface Machining.This permanent-magnetic clamp can radially be magnetized into the permanent-magnetic clamp of surperficial same polarity or any multi-pole magnet-ring that comprises the oblique utmost point of opposed polarity.Figure 12 shows that the anisotropy sintering rare-earth magnet ring (getting final product along this direction magnetization during use) of the radial radiation orientation of using the present embodiment manufacturing.
Embodiment eight: (difference referring to the present embodiment of Figure 13-Figure 16) and embodiment one, two or three is that it comprises that also the radial multi-pole oriented coils that is arranged on die sleeve 3 outsides twines body 22, it is a cylindrical sleeve that the radial multi-pole oriented coils twines body 22, this cylindrical sleeve inner surface has many even numbers groove, constitute pole shoe between the adjacent groove, be wound with a coil on each pole shoe, a plurality of coil first and last ends are connected successively, and a plurality of coil becomes series loop with two group of terminals of current source 5.Other composition is identical with embodiment one, two or three with annexation.
Present embodiment can be made the radially round table-like multipole sintering rare-earth magnet of the extremely above orientation of four utmost points orientation and four, below is a radially example of four utmost points orientation.
As shown in figure 14, the radial multi-pole oriented coils twines body 22 and has four grooves, No. five coil 4-5, No. six coil 4-6, No. seven coil 4-7 and No. eight coil 4-8 are wrapped in respectively on four pole shoes, No. five coil 4-5, No. six coil 4-6, No. seven coil 4-7 and No. eight coil 4-8 first and last ends are connected successively, and a plurality of coil becomes series loop with two group of terminals of current source 5.Above-mentioned a plurality of coil also can be formed the shunt circuit with two terminals of current source 5, and promptly No. five coil 4-5, No. six coil 4-6, No. seven coil 4-7 and No. eight coil 4-8 first and last ends are in parallel successively, form the shunt circuit with two terminals of current source 5.Figure 15 shows that the round table-like radial multi-pole orientation anisotropy sintered rare-earth permanent magnetic body that uses present embodiment to make.
Utilize the made round table-like anisotropy sintering rare-earth formed body of embodiment six and embodiment eight, after sintering and Ageing Treatment, can be processed into thin different high-orientation radial radiation of the different walls of a series of size diameter or radial multi-pole orientation permanent-magnet rare-earth ring (as shown in figure 16), particularly can be processed into the thin-walled ring.Present embodiment can improve the timeliness of orientation compacting and sintering circuit, is out of shape for a short time behind the sintering, has suppressed the cracking behind the sintering to greatest extent, is applicable to production in enormous quantities.
At present, miniature magneto adopts the sintered NdFeB magnetic shoe to be spliced into ring usually.Because the restriction of machining accuracies such as watt type magnet angle, the dynamic balancing of splicing magnet ring is poor, and transition region is big between magnetic pole, makes motor produce noise and vibrations.Reprocessing through complicated just can make rotor have dynamic balancing preferably, otherwise will directly influence motor properties.Adopt be used to make the simple alternating current amount of decrease magnetic field orientating method of the integral sintered magnet ring of radial anisotropic rare earth and the magnet ring product that shaped device is made provided by the invention, overcome the above-mentioned shortcoming of splicing magnet ring fully.Its machining accuracy height can directly magnetize into multipolely at surfaces externally and internally, very easily install again.Because transition region is little between magnetic pole, good dynamic balance has reduced the noise and the vibrations of motor, can increase substantially this class motor properties and reduced volume.
Claims (8)
1, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device, it is characterized in that it comprises patrix drift (1), counterdie drift (2), die sleeve (3), coil (4) and current source (5), the upper end of the lower end of patrix drift (1) and counterdie drift (2) places the upper and lower in the die sleeve (3) respectively, the outer felt of described die sleeve (3) is wound with coil (4), the two ends of described coil (4) are connected with two terminals of current source (5) respectively, and the electric current that current source (5) produces is passed into and forms pure oscillation amount of decrease magnetic field in the coil (4).
2, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device according to claim 1, it is characterized in that it also comprises the 3rd electric capacity (6) and No. nine coils (7), described No. nine coils (7) are arranged between the interior winding face of the face of cylinder of die sleeve (3) and coil (4), and No. nine coils (7) form the closed-loop path with the 3rd electric capacity (6); Described current source (5) is the pulse power.
3, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device according to claim 1, it is characterized in that described current source (5) is made up of the pulse power (51), the first mutual inductance solenoid (52), first capacitor (53), the described first mutual inductance solenoid (52) is made up of first primary coil (52-1) and first secondary coil (52-2), the first and last end of first primary coil (52-1) connects two outputs of the pulse power (51) respectively, and an end of first secondary coil (52-2) is connected with an end of first capacitor (53); The two ends of coil (4) are connected with the other end of first secondary coil (52-2) and the other end of first capacitor (53) respectively.
4, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device according to claim 1, it is characterized in that described current source (5) is by DC power supply (54), second mutual inductor (55), main switch (K1), short switch (K2) and second capacitor (56) are formed, second mutual inductor (55) is to be wound on the hollow mutual inductor that forms together by second primary coil (55-1) and second subprime coil (55-2), an output of DC power supply (54) connects an end of main switch (K1), the other end of main switch (K1) connects an end of second primary coil (55-1) and an end of short switch (K2), the other end of short switch (K2) connects the other end of DC current source and the other end of second primary coil (55-1), and the first and last end of second subprime coil (55-2) connects the two ends of second capacitor (56) respectively; Coil (4) is connected in parallel on the two ends of second capacitor (56).
5, according to claim 1,2,3 or 4 described anisotropy sintered rare-earth permanent magnetic body oriontation shaping devices, it is characterized in that described coil (4) forms by two, be respectively a coil (4-1) and No. two coils (4-2), a coil (4-1) and No. two coils (4-2) are separately positioned on the both sides of die sleeve 3, two coil first and last ends link to each other respectively and are connected with two terminals of current source (5) respectively, and magnetic direction unanimity and described magnetic direction that two coils form are vertical with the pressing direction of permanent magnet.
6, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device according to claim 1, it is characterized in that it also comprises filler operating platform (8), last connector (9) and following connector (10), the middle part of filler operating platform (8) has die sleeve installing hole (8-1), die sleeve (3) is arranged in the die sleeve installing hole (8-1), described coil (4) is formed by two, be respectively No. three coils (4-3) and No. four coils (4-4), No. three coils (4-3) are fixedlyed connected with patrix drift (1) by last connector (9) respectively, connector (10) was fixedlyed connected with counterdie drift (2) under No. four coils (4-4) passed through respectively, No. three coils (4-3) and No. four coils (4-4) are gone up respectively, be arranged on the outside of die sleeve (3) down, two coil first and last ends link to each other respectively and are connected with two terminals of current source (5) respectively, and the transient magnetic field direction that two coils form relatively and be parallel to each other and in the magnetic field of two magnetic field intersections formation radial radiations.
7, anisotropy sintered rare-earth permanent magnetic body oriontation shaping device according to claim 6, it is characterized in that it also comprises plug (21) and following plug (23), patrix drift (1) and counterdie drift (2) are tubular, and last plug (21) and following plug (23) are separately positioned in patrix drift (1) and the counterdie drift (2).
8, according to claim 1,2 or 3 described anisotropy sintered rare-earth permanent magnetic body oriontation shaping devices, it is characterized in that it comprises that also the radial multi-pole oriented coils that is arranged on die sleeve (3) outside twines body (22), it is a cylindrical sleeve that the radial multi-pole oriented coils twines body (22), this cylindrical sleeve inner surface has many even numbers groove, constitute pole shoe between the adjacent groove, be wound with a coil on each pole shoe, a plurality of coil first and last ends are connected successively, and a plurality of coil becomes series loop with two group of terminals of current source (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021585 CN200947369Y (en) | 2006-09-01 | 2006-09-01 | Aeolotropy sintering rare earth permanent magnet oriented molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021585 CN200947369Y (en) | 2006-09-01 | 2006-09-01 | Aeolotropy sintering rare earth permanent magnet oriented molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200947369Y true CN200947369Y (en) | 2007-09-12 |
Family
ID=38734434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021585 Expired - Fee Related CN200947369Y (en) | 2006-09-01 | 2006-09-01 | Aeolotropy sintering rare earth permanent magnet oriented molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200947369Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582611B (en) * | 2008-05-12 | 2011-04-13 | 宁波永久磁业有限公司 | One-step forming process for sintered NdFeB permanent magnet of motor and mould thereof |
| CN110136916A (en) * | 2019-06-11 | 2019-08-16 | 深圳市瑞达美磁业有限公司 | A kind of radiation orientation solid cylindrical magnet and its production method and equipment |
| CN110165847A (en) * | 2019-06-11 | 2019-08-23 | 深圳市瑞达美磁业有限公司 | The production method of the solid magnet of radial anisotropic multipole of different in width waveform |
| CN110211796A (en) * | 2019-06-11 | 2019-09-06 | 深圳市瑞达美磁业有限公司 | Solid magnet of radial anisotropic multipole and preparation method and apparatus thereof |
| CN115780807A (en) * | 2022-12-27 | 2023-03-14 | 北京工商大学 | Full-automatic magnet integrated forming device and method using one-way mover |
-
2006
- 2006-09-01 CN CN 200620021585 patent/CN200947369Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582611B (en) * | 2008-05-12 | 2011-04-13 | 宁波永久磁业有限公司 | One-step forming process for sintered NdFeB permanent magnet of motor and mould thereof |
| CN110136916A (en) * | 2019-06-11 | 2019-08-16 | 深圳市瑞达美磁业有限公司 | A kind of radiation orientation solid cylindrical magnet and its production method and equipment |
| CN110165847A (en) * | 2019-06-11 | 2019-08-23 | 深圳市瑞达美磁业有限公司 | The production method of the solid magnet of radial anisotropic multipole of different in width waveform |
| CN110211796A (en) * | 2019-06-11 | 2019-09-06 | 深圳市瑞达美磁业有限公司 | Solid magnet of radial anisotropic multipole and preparation method and apparatus thereof |
| CN110136916B (en) * | 2019-06-11 | 2021-01-26 | 深圳市瑞达美磁业有限公司 | Radiation orientation solid cylindrical magnet and production method and equipment thereof |
| CN110211796B (en) * | 2019-06-11 | 2021-03-02 | 深圳市瑞达美磁业有限公司 | Radially anisotropic multi-pole solid magnet and method and apparatus for producing the same |
| US11183908B2 (en) | 2019-06-11 | 2021-11-23 | Shenzhen Radimag Magnets Co., Ltd | Method for producing radially anisotropic multipolar solid magnet adapted to different waveform widths |
| US11251686B2 (en) | 2019-06-11 | 2022-02-15 | Shenzhen Radimag Magnets Co., Ltd | Radially oriented solid cylindrical magnet and production method and device thereof |
| US11522421B2 (en) | 2019-06-11 | 2022-12-06 | Shenzhen Radimag Magnets Co., Ltd | Radially anisotropic multipolar solid magnet, and production method and device thereof |
| CN115780807A (en) * | 2022-12-27 | 2023-03-14 | 北京工商大学 | Full-automatic magnet integrated forming device and method using one-way mover |
| CN115780807B (en) * | 2022-12-27 | 2024-01-26 | 北京工商大学 | Full-automatic magnet integrated forming device and method using unidirectional motion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200947369Y (en) | Aeolotropy sintering rare earth permanent magnet oriented molding device | |
| CN106252023B (en) | A kind of multi-pole magnet-ring orientation and the fixture and method that magnetize | |
| CN200986854Y (en) | Aeolotropism cementing rare-earth permanent magnet orientation forming device | |
| CN103066783A (en) | Double-stator motor | |
| CN104811011A (en) | Cylindrical type transverse magnetic-field permanent-magnet flux-switching linear motor | |
| CN102412051B (en) | Permanent magnet assembly with high-intensity magnetic field and high uniformity | |
| CN107617740A (en) | Sintered body, its manufacture method, decompressor and resin molded ring | |
| DE202005019268U1 (en) | Ring-shaped anisotropic inner diameter oriented ferromagnet and its pressing tool | |
| CN213471601U (en) | Magnetic circuit die with radial multistage magnetic rings of permanent magnets with different directions | |
| JP4605317B2 (en) | Rare earth anisotropic bonded magnet manufacturing method, magnet molded body orientation processing method, and magnetic field molding apparatus | |
| EP4254749A2 (en) | Assembly and method to produce three pole magnets | |
| CN204696828U (en) | A kind of permanent-magnet ferrite multi-pole magnet-ring of brshless DC motor | |
| JP2007035786A (en) | Radial orientation magnetic field forming apparatus | |
| CN204884755U (en) | Multipolar magnetizer | |
| CN201122887Y (en) | Equal circle type single-phase winding of intermediate frequency permanent magnet generator | |
| JPS6134249B2 (en) | ||
| CN1664966A (en) | Convergent oscillation type demagnetization device | |
| CN205725399U (en) | Permanent magnetic Reciprocative straight line motor | |
| CN205609346U (en) | Magnetism base manufacture equipment | |
| CN105914922B (en) | Coreless disc type motor permanent magnet rotor with magnetism gathering effect and manufacturing method thereof | |
| JP3538762B2 (en) | Method for producing anisotropic bonded magnet and anisotropic bonded magnet | |
| CN111128510A (en) | Magnetizing device for super-strong hybrid stepping motor | |
| CN219246470U (en) | Plane two-pole permanent magnet magnetizer | |
| JP2013123318A (en) | Ring magnet, method of manufacturing ring magnet, and motor | |
| CN211701627U (en) | Tile-shaped magnet with halbach array structure effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20110901 |