CN202779793U - Magnetic material powder forming mold - Google Patents
Magnetic material powder forming mold Download PDFInfo
- Publication number
- CN202779793U CN202779793U CN 201220509093 CN201220509093U CN202779793U CN 202779793 U CN202779793 U CN 202779793U CN 201220509093 CN201220509093 CN 201220509093 CN 201220509093 U CN201220509093 U CN 201220509093U CN 202779793 U CN202779793 U CN 202779793U
- Authority
- CN
- China
- Prior art keywords
- material powder
- magnetic material
- inner chamber
- mold
- saturated polarization
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a magnetic material powder forming mold which comprises a female die. An inner female die cavity is arranged in the female die, and a saturation polarization intensity of a material of at least one side surface of the inner female die cavity is identical to that of a magnetic material powder to be compressed. According to the magnetic material powder forming mold, the saturation polarization intensity of the material of the at least one side surface of the inner female die cavity is identical to that of the magnetic material powder so that edge warping phenomena of a magnetic field are transferred from the magnetic material powder to the side surface of the inner female die cavity, the side surface of the inner female die cavity is made of the material, the uniform magnetic field of the magnetic material powder is guaranteed, and performances of blanks made by the mold can be guaranteed; and a partition board is arranged on different side surfaces according to different requirements, the materials of the partition board have the same saturation polarization intensity with the magnetic material powder, the application range is wide, and compression of the magnetic powder can not be influenced.
Description
Technical field
The utility model relates to mould manufacturing field, refers in particular to a kind of mold for molding magnetic material powder.
Background technology
As shown in Figure 1, the mould that uses at present is comprised of former and seaming chuck 5, push-down head 6, and former is comprised of four blocks of side plates all around, and wherein left plate 3, right plate 4 have used permeability magnetic material, are generally Gr12 steel or GGr15 steel; Front side board 1, back side panel 2 are non-magnet_conductible material, are generally 304 stainless steels, without magnetic mould steel, and non-magnesium hard alloy etc., seaming chuck 5, push-down head 6 also are non-magnet_conductible material.
Magnaglo needs to have magnetic field orientating in pressing process, make the direction of magnetization of powder identical with the direction of externally-applied magnetic field.The coil of orientation usefulness is installed on the press, when coil electricity, and press frame, cartridge, left and right side plate, die cavity consist of magnetic circuit.
The benefit of existing such mould is: whole magnetic resistance is less, only needs less electric current just can make the magnetic induction intensity in the die cavity reach specification requirement.
But above-mentioned mould has only been considered the intensity in magnetic field, does not consider the movement of magnetic in the die cavity.In fact, if magnetic in a uniform magnetic field, magnetic is in static or only can rotates so, the direction of magnetization that turns to magnetic is with till magnetic direction is consistent; And when Magnetic field inhomogeneity, magnetic then can move towards the high place of magnetic induction intensity.
Clearly, the mould that uses at present, because its left and right side plate has used permeability magnetic material, the distribution situation of its die cavity internal magnetic field is: higher the closer to left side plate place magnetic induction intensity, magnetic induction intensity is minimum in the centre.See intuitively, be exactly after left and right side plate magnetizes in magnetic field, to have produced the attraction to magnetic, magnetic moved at two ends to the left and right when this had just caused orientation, thereby so that compacting blank material out is inhomogeneous, show that finally the blank behind the sintering becomes the little waist contracting shape in large centre, two ends.
In addition, because Distribution of Magnetic Field is inhomogeneous, also cause compacting blank out inconsistent in the differently-oriented directivity at each position, also can affect its performance.
The utility model content
The purpose of this utility model provides a kind of mold for molding magnetic material powder, and it can overcome the deficiencies in the prior art, makes the blank material that produces by this mould even, functional.
The purpose of this utility model is achieved in that
Mold for molding magnetic material powder, it includes former, is provided with the former inner chamber in the described former, and the saturated polarization of at least one side of described former inner chamber is consistent with the saturated polarization of the magnetic material powder that needs compacting.
From the angle in magnetic field, the magnetic line of force can form uniform magnetic field in the central area of two magnetic conductive boards by two parallel magnetic conductive boards, then can cause owing to the existence of edge effect magnetic line of force distortion at the fringe region of two magnetic conductive boards.So, for mold for molding magnetic material powder, when not considering the magnetic property of magnetic, only the plane of left plate and right plate need to be strengthened, then the magnetic field of center just can be thought uniformly.But behind the adding magnetic, because magnetic itself has certain magnetic conductivity, so also can twist at the magnetic line of force at magnetic edge.The utility model is consistent with the saturated polarization of the magnetic material powder that needs compacting with the saturated polarization of the material of former inner chamber, under the effect of alignment magnetic field, the magnetic conductivity of division board is consistent with the magnetic conductivity of magnetic material powder, make the edge twisted phenomena in magnetic field transfer on the side of the former inner chamber of being made by this material from magnetic material powder, the magnetic field of having guaranteed magnetic material powder is uniform magnetic field, the performance of the blank of the magnetic material powder that assurance is suppressed out.
Former described in the utility model includes a plurality of side plates, and the saturated polarization of a plurality of described side plates is consistent with the saturated polarization of the magnetic material powder that needs compacting.
The material of at least one side of former inner chamber described in the utility model can be for using cobalt as the carbide alloy of Binder Phase.
The material of at least one side plate of former inner chamber described in the utility model can be 15% carbide alloy or to contain the cobalt amount be the carbide alloy of 16%-20% or contain the carbide alloy that the cobalt amount is 22%-25% for containing the cobalt amount.
The material of at least one side of former inner chamber described in the utility model can be for containing the ferroalloy of half martensite, semiaustenitic, or at least one side of described former inner chamber material be the ferroalloy that contains half ferrite, semiaustenitic.
At least one side of former inner chamber described in the utility model is provided with division board, and the saturated polarization of described division board is consistent with the saturated polarization of the magnetic material powder that needs compacting.
Former described in the utility model includes left plate, right plate, front side board and back side panel, at least be respectively equipped with division board on left side and the right side of described former inner chamber, the saturated polarization of described division board is consistent with the saturated polarization of the magnetic material powder that needs compacting.
Left plate described in the utility model and described right plate are provided with the recessed structure that cooperates with described division board in a side of described former inner chamber, and the width of described recessed structure is greater than the width of described former inner chamber.
The front side board of former inner chamber described in the utility model and back side panel also can be provided with described division board, four described division boards are connected to form hollow cylindrical body in turn, the outer wall of described cylindrical body matches with the inwall of described former inner chamber, and the shape of the inner chamber of described cylindrical body is complementary with the shape of the blank that needs compacting.
Mold for molding magnetic material powder described in the utility model also includes seaming chuck and push-down head, the saturated polarization of described seaming chuck is consistent with the saturated polarization of the Magnaglo that needs compacting, and the saturated polarization of described push-down head is consistent with the saturated polarization of the Magnaglo that needs compacting.
The utility model compared with prior art has following beneficial effect:
The utility model passes through the saturated polarization of at least one side material of former inner chamber consistent with the saturated polarization of magnetic material powder, make the edge twisted phenomena in magnetic field transfer on the side of the former inner chamber of being made by this material from magnetic material powder, the magnetic field that guarantees magnetic material powder is uniform magnetic field, guarantees the performance of the blank made by this mould.
The set-up mode of division board of the present utility model can be arranged at according to different demands the consistent material of saturated polarization of magnetic material powder in different sides, applied widely, can not affect the compacting of Magnaglo.
Description of drawings
Fig. 1 is the structural representation of prior art mold for molding magnetic material powder;
Fig. 2 is the structural representation of the utility model mold for molding magnetic material powder embodiment 1;
Fig. 3 is the structural representation of the utility model mold for molding magnetic material powder embodiment 2;
Fig. 4 is the structural representation of the utility model mold for molding magnetic material powder embodiment 3;
Fig. 5 is the structural representation of the utility model mold for molding magnetic material powder embodiment 4.
Among the figure: 1-left plate, 2-right plate, 3-front side board, 4-back side panel, 5-seaming chuck, 6-push-down head, 11-seaming chuck, 12-push-down head, 13-front side board, 14-back side panel, 15-left plate, 16-right plate, 17-former inner chamber, 18-division board, 19-division board, the hollow cylindrical body of 21-.
The specific embodiment
The utility model mold for molding magnetic material powder, it includes former, seaming chuck and push-down head, be provided with the former inner chamber in the described former, the saturated polarization of at least one side of described former inner chamber is consistent with the saturated polarization of the magnetic material powder that needs compacting.Wherein, can adjust the saturated polarization of the material of corresponding former inner chamber employing according to the distortion situation of the blank that suppresses, make its saturated polarization with the magnetic material powder that needs compacting consistent.
Described former includes a plurality of side plates, also can adopt the saturated polarization of adjusting a plurality of described side plates, makes its saturated polarization with the magnetic material powder that needs compacting consistent; The material of at least one side of described former inner chamber is for using cobalt as the carbide alloy of Binder Phase.
The material of at least one side plate of described former inner chamber is that to contain the cobalt amount be 15% carbide alloy or to contain the cobalt amount be the carbide alloy of 16%-20% or contain the carbide alloy that the cobalt amount is 22%-25%; Perhaps, the material of at least one side of described former inner chamber is the ferroalloy that contains half martensite, semiaustenitic, or at least one side of described former inner chamber material be the ferroalloy that contains half ferrite, semiaustenitic.
Embodiment 1:
As shown in Figure 2, this preferred embodiment includes four blocks of side plates as example take former.Described mould includes seaming chuck 11, push-down head 12 and former, described former includes front side board 13, back side panel 14, left plate 15 and right plate 16, and described front side board 13, described back side panel 14, described left plate 15 and described right plate 16 are around forming former inner chamber 17.Preferred described former inner chamber 17 inboards are whole for adopting the saturated polarization material consistent with the saturated polarization of the magnetic material powder that needs compacting to make; Perhaps consistent with the saturated polarization of the magnetic material powder that needs compacting at the saturated polarization of the material of left plate 15 and right plate 16; Perhaps the saturated polarization of the material of described front side board 13, described back side panel 14, described left plate 15 and described right plate 16 is consistent with the saturated polarization of the magnetic material powder that needs compacting.
In this preferred embodiment, then preferably be respectively equipped with division board 18,19 on left side and the right side of described former inner chamber 17, described division board 18,19 saturated polarization are consistent with the saturated polarization of the magnetic material powder that needs compacting, described division board 18,19 covers left side and the right side of described former inner chamber respectively fully, by described division board 18,19 magnetic material powder is isolated with left plate 15 and right plate 16 fully.
From the angle in magnetic field, the magnetic line of force can form uniform magnetic field by two parallel magnetic conductive boards in the central area of two magnetic conductive boards, then can be owing to the magnetic line of force distortion of edge effect existence at the fringe region of two magnetic conductive boards.So, for mold for molding magnetic material powder, when not considering the magnetic property of magnetic, then only the area of plane of left plate 15 and right plate 16 need to be strengthened, then the magnetic field of center then can be thought uniformly, but behind the adding magnetic material powder, because magnetic material powder itself has certain magnetic conductivity, so also can twist at the magnetic line of force at magnetic material powder edge.The utility model arranges division board in the inboard of left plate and right plate, and the saturated polarization that is division board is consistent with the saturated polarization of the magnetic material powder that needs compacting, under the effect of alignment magnetic field, the magnetic conductivity of division board is consistent with the magnetic conductivity of magnetic material powder, the edge twisted phenomena in magnetic field is transferred on the division board from magnetic material powder, the magnetic field of having guaranteed magnetic material powder is uniform field, the performance of the blank of the magnetic material powder that assurance is suppressed out.
Described division board 18,19 material are for using cobalt as the carbide alloy of Binder Phase.The content of cobalt is higher, and then the saturated polarization of carbide alloy is higher, and the saturated polarization of the content control division board by the control cobalt makes its saturated polarization consistent with the saturated polarization of magnetic material powder.Described division board 18,19 material are YG15 carbide alloy, YG16 carbide alloy, YG17 carbide alloy, YG18 carbide alloy, YG19 carbide alloy or YG20 carbide alloy.
Described division board 18,19 material also can be for containing the ferroalloy of half martensite, semiaustenitic, or the material of described division board is the ferroalloy that contains half ferrite, semiaustenitic, control the saturated polarization of division board by adjusting austenitic content, make its saturated polarization consistent with the saturated polarization of magnetic material powder, austenite content is higher, and then saturated polarization is lower.
For the ease of described division board 18 and described division board 19 being individually fixed in the inboard of described left plate 15 and described right plate 16, described left plate 15 is provided with the recessed structure that cooperates with described division board 18 in a side of described former inner chamber 17, described right plate 16 is provided with the recessed structure that cooperates with described division board 19 in a side of described former inner chamber 17, and the width of described recessed structure is greater than the width of described former inner chamber 17.When described division board 18,19 is embedded into described left plate 15, described right plate 16 when interior, can avoid magnetic material powder to contact with left plate 15, the right plate 16 of magnetic conduction fully.
In the present embodiment, described magnetic material powder is the neodymium iron boron powder, and described division board 18,19 material are preferably the YG18 carbide alloy.Described seaming chuck 11 and described push-down head 12 also adopt the YG18 carbide alloy to make.
Embodiment 2:
As shown in Figure 3, front side board 13 and the back side panel 14 of described former inner chamber 17 are equipped with described division board, four described division boards are connected to form hollow cylindrical body 21 in turn, the outer wall of described cylindrical body 21 matches with the inwall of described former inner chamber 17, and the shape of the inner chamber of described cylindrical body 21 is complementary with the shape of the blank that needs compacting.Four division boards form cylindrical body 21 as an overall structure, and are easy for installation.Accordingly, in order to match with described cylindrical body 21, the length of described front side board 13 and described back side panel 14 needs to shorten accordingly.
Embodiment 3:
As shown in Figure 4, when needs are suppressed special-shaped magnetic material powder, the shape of alteration of form cylindrical body 21 inner chambers that also can be as required, the blank of the 45° angle of tilted direction shown in Fig. 4 orientation leaves the inner chamber similar to blank shape at the middle part of described cylindrical body 21.
Embodiment 4:
As shown in Figure 5, the cavity shape of described cylindrical body 21 is the combination of cuboid and semicolumn, with special-shaped blank corresponding to suitable compacting.。
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. mold for molding magnetic material powder, it includes former, be provided with former inner chamber (17) in the described former, it is characterized in that, the saturated polarization of at least one side of described former inner chamber (17) is consistent with the saturated polarization of the magnetic material powder that needs compacting.
2. mold for molding magnetic material powder according to claim 1 is characterized in that, described former includes a plurality of side plates, and the saturated polarization of a plurality of described side plates is consistent with the saturated polarization of the magnetic material powder that needs compacting.
3. mold for molding magnetic material powder according to claim 1 and 2 is characterized in that, the material of at least one side of described former inner chamber (17) is for using cobalt as the carbide alloy of Binder Phase.
4. mold for molding magnetic material powder according to claim 3, it is characterized in that the material of at least one side plate of described former inner chamber (17) is that to contain the cobalt amount be 15% carbide alloy or to contain the cobalt amount be the carbide alloy of 16%-20% or contain the carbide alloy that the cobalt amount is 22%-25%.
5. mold for molding magnetic material powder according to claim 1 and 2, it is characterized in that, the material of at least one side of described former inner chamber (17) is the ferroalloy that contains half martensite, semiaustenitic, or the material of at least one side of described former inner chamber is the ferroalloy that contains half ferrite, semiaustenitic.
6. mold for molding magnetic material powder according to claim 1 and 2, it is characterized in that, at least one side of described former inner chamber (17) is provided with division board, and the saturated polarization of described division board is consistent with the saturated polarization of the magnetic material powder that needs compacting.
7. mold for molding magnetic material powder according to claim 6, it is characterized in that, described former includes left plate (15), right plate (16), front side board (13) and back side panel (14), at least be respectively equipped with division board (18), (19) on left side and the right side of described former inner chamber (17), the saturated polarization of described division board (18), (19) is consistent with the saturated polarization of the magnetic material powder that needs compacting.
8. mold for molding magnetic material powder according to claim 7, it is characterized in that, described left plate (15) and described right plate (16) are provided with the recessed structure that cooperates with described division board in a side of described former inner chamber (17), and the width of described recessed structure is greater than the width of described former inner chamber.
9. mold for molding magnetic material powder according to claim 6, it is characterized in that, front side board (13) and the back side panel (14) of described former inner chamber (17) also can be provided with described division board (18), (19), four described division boards are connected to form hollow cylindrical body (21) in turn, the outer wall of described hollow cylindrical body (21) matches with the inwall of described former inner chamber (17), and the shape of the inner chamber of described hollow cylindrical body (21) is complementary with the shape of the blank that needs compacting.
10. mold for molding magnetic material powder according to claim 1, it is characterized in that, described mold for molding magnetic material powder also includes seaming chuck (11) and push-down head (12), the saturated polarization of described seaming chuck (11) is consistent with the saturated polarization of the Magnaglo that needs compacting, and the saturated polarization of described push-down head (12) is consistent with the saturated polarization of the Magnaglo that needs compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509093 CN202779793U (en) | 2012-10-07 | 2012-10-07 | Magnetic material powder forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509093 CN202779793U (en) | 2012-10-07 | 2012-10-07 | Magnetic material powder forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779793U true CN202779793U (en) | 2013-03-13 |
Family
ID=47807135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509093 Withdrawn - After Issue CN202779793U (en) | 2012-10-07 | 2012-10-07 | Magnetic material powder forming mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779793U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847938A (en) * | 2012-10-07 | 2013-01-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN103302289A (en) * | 2013-06-08 | 2013-09-18 | 徐州金石彭源稀土材料厂 | Adjustable forming mould of neodymium iron boron magnetic material |
| CN105880587A (en) * | 2016-05-13 | 2016-08-24 | 内蒙古科元胜力金山稀土科技有限公司 | Perpendicular pressing and forming mould for slices |
-
2012
- 2012-10-07 CN CN 201220509093 patent/CN202779793U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847938A (en) * | 2012-10-07 | 2013-01-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN102847938B (en) * | 2012-10-07 | 2014-07-02 | 江西金力永磁科技有限公司 | Magnetic material powder forming mold |
| CN103302289A (en) * | 2013-06-08 | 2013-09-18 | 徐州金石彭源稀土材料厂 | Adjustable forming mould of neodymium iron boron magnetic material |
| CN105880587A (en) * | 2016-05-13 | 2016-08-24 | 内蒙古科元胜力金山稀土科技有限公司 | Perpendicular pressing and forming mould for slices |
| CN105880587B (en) * | 2016-05-13 | 2019-06-07 | 生一伦磁业有限公司 | A kind of vertical press-moulding die of thin slice |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102847938B (en) | Magnetic material powder forming mold | |
| CN202779793U (en) | Magnetic material powder forming mold | |
| CN208004792U (en) | A kind of compacting tool set preparing neodymium iron boron multi-pole magnet-ring | |
| CN203746756U (en) | Magnetic holding pneumatic control type contactor | |
| CN102847939B (en) | Magnetic material powder forming mold with non-magnetic isolating structure | |
| CN205943636U (en) | High -intensity magnetic field subassembly | |
| CN204966256U (en) | Magnetism shielding structure for transformer | |
| CN102751088B (en) | Pneumatic coil pressing machine | |
| CN202779792U (en) | Forming die with non-magnetic-conductive isolation structure for magnetic material powder | |
| CN203242467U (en) | Novel filter reactor | |
| CN204178858U (en) | EI type transformer | |
| CN202804184U (en) | Neodymium iron boron magnetic body mold | |
| CN202230843U (en) | I-shaped magnetic core | |
| CN204178857U (en) | A kind of transformer | |
| CN202487371U (en) | Simple device for compactor body | |
| CN202462673U (en) | Workholder for high-speed slicer | |
| CN207735586U (en) | A kind of magnetic material mold | |
| CN105751731A (en) | Magnetic attraction type loose-leaf notebook inner core and loose-leaf notebook | |
| CN203983436U (en) | A kind of slim wide temperature circulator | |
| CN202711948U (en) | Pneumatic solenoid pressing machine | |
| CN206794755U (en) | Convergent magnetic field sintered NdFeB mould | |
| CN203956080U (en) | The manufacturing installation of neodymium iron boron spheroid | |
| CN206639747U (en) | A kind of arc extinguisher structure using neodymium iron boron blow-out magnet steel | |
| CN203124735U (en) | NdFeB sintering forming mold | |
| CN203281879U (en) | Forming die of rare earth strong magnetic products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140702 |
|
| RGAV | Abandon patent right to avoid regrant |