CN109014188A - Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method - Google Patents
Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method Download PDFInfo
- Publication number
- CN109014188A CN109014188A CN201811090090.2A CN201811090090A CN109014188A CN 109014188 A CN109014188 A CN 109014188A CN 201811090090 A CN201811090090 A CN 201811090090A CN 109014188 A CN109014188 A CN 109014188A
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- Prior art keywords
- die
- side plate
- cylindrical blank
- push
- plate
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 19
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 18
- 229910052779 Neodymium Inorganic materials 0.000 title claims abstract description 17
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000004826 seaming Methods 0.000 claims abstract description 30
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 17
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 14
- 239000011324 bead Substances 0.000 claims abstract description 8
- 238000000748 compression moulding Methods 0.000 claims abstract description 8
- 230000014759 maintenance of location Effects 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die and its production methods, it includes side plate that radial magnetized neodymium ferrum boron cylindrical blank, which forms whole set of die, there are two the side plate is opposite disposed, push-down head and seaming chuck are equipped between the side plate, the push-down head and seaming chuck closed end form shaping mold cavity, demarcation plate is fixed in the middle part of the side plate, the end integrated setting of two side plates has the retention bead extended inwardly, and clamping fixed has fixed plate between the inside and pushing cephalic par of the retention bead.The present invention is cooperated by seaming chuck and push-down head, neodymium-iron-boron powder can be pressed near cylindrical blank, by using various sizes of molding die, it not only can be with the product of compression moulding diameter 20mm or more, 20 mm of diameter product below can also be suppressed, it, can be with the multiple products of one-pass molding by the way that multiple groups shaping mold cavity is arranged, the production efficiency of neodymium iron boron cylinder is improved, product performance index remanent magnetism there will not be loss.
Description
Technical field
The invention belongs to neodium magnet production mould technical fields, and in particular to a kind of radial magnetized neodymium ferrum boron cylindrical blank at
Type whole set of die and its production method.
Background technique
Neodymium iron boron is briefly a kind of magnet and magnet that we usually see the difference is that it is because of excellent magnetic
Performance and be referred to as " magnetic king ".Containing a large amount of rear earth element nd and iron and boron in neodymium iron boron, characteristic is hard and crisp, neodymium iron
Boron makes neodymium iron boron as a kind of with high magnetic energy product and coercivity of rare earth permanent-magnetic material the advantages of high-energy density
Permanent-magnet material is applied widely in modern industry and electronic technology.
Sintered NdFeB radial direction cylinder traditional processing technology at present are as follows: first method is first to produce block products, then
It is cut into small side's item, finally by the round as a ball radially cylinder in small side item side.Second method is one former of design, and former center is one
A ellipse hole, designs two formpistons, and two formpiston shapes are and the matched column of former hole size, when molding, former
It is fixed among press orientation cartridge, formpiston is separately mounted to press up and down on two hydraulic cylinders, and when compression moulding falls powder
Enter former, upper and lower formpiston produces successfully radial cylinder green compact to pressure after orientation.
But above scheme has following defects that first method in use the disadvantage is that waste material；Second method
Because will into former, cloth powder, elipse hole cannot be too small, it is producible radial direction cylinder size just have limitation, generally can only
The product of diameter 20mm or more is produced, while this pressing mode can have an impact to the degree of orientation of entire powder, will cause product
One of them performance indicator have decline 1 ~ 2% or so, generally can only a mould go out one, production efficiency is lower.
Summary of the invention
The purpose of the present invention is to provide a kind of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die and its producers
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of radial magnetized neodymium ferrum boron cylindrical blank forms
Whole set of die, including side plate there are two the side plate is opposite disposed, are equipped with push-down head and seaming chuck between the side plate, described
Push-down head and seaming chuck closed end form shaping mold cavity, demarcation plate are fixed in the middle part of the side plate, the demarcation plate is under
The end of pressure head pushes against, and the end integrated setting of two side plates has the retention bead extended inwardly, the limit convex
Clamping fixed has fixed plate between the inside risen and pushing cephalic par.
Preferably, the Length x Width of the push-down head and seaming chuck is all the same.
Preferably, the sum of height of the push-down head and seaming chuck is identical as the height of side plate.
Preferably, the middle part of the side plate is equipped with card slot, and the both ends of the demarcation plate are stuck in card slot, the separation
The both ends of plate are equipped with chamfering.
Preferably, the shaping mold cavity is surrounded by two half elliptic grooves, and the semiellipse groove of doing includes position
In the elliptical arc surface section at middle part and the section section at elliptical arc surface section both ends, the section section is with vertical direction included angle
20-30°。
A kind of production method of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die, including following operating procedure:
S1: the both ends of demarcation plate are separately fixed in the groove of side plate interior sides, then two push-down heads are individually positioned in by assembling
Between the side plate of demarcation plate two sides, then fixing board card fastened at the both ends of side plate, completes assembling；
S2: the neodymium-iron-boron powder for completing to weigh is directed respectively into the mold cavity of demarcation plate two sides by feeding, is paved uniformly；
S3: seaming chuck is aligned with demarcation plate two side areas by compression moulding respectively, and half elliptic groove is downward, confirms nothing
After accidentally, seaming chuck is completely forced into using press, then mold is taken out to powder oriented moulding by magnetic field；
S4: two side plates are split to both sides first, then fixed plate are taken out by demoulding, remove seaming chuck, are taken out in shaping mold cavity
Neodymium iron boron cylindrical blank, be sent into agglomerating chamber be sintered.
Preferably, the pressure of press is 80-100T in step S3, and press binder speed is 1cm/s.
Technical effect and advantage of the invention:
The present invention is cooperated by seaming chuck and push-down head, and neodymium-iron-boron powder can be pressed into the blank of near cylindrical, is saved
About raw material can also not only be pressed by using various sizes of molding die with the product of compression moulding diameter 20mm or more
20 mm of diameter processed product below can improve neodymium iron boron by the way that multiple groups shaping mold cavity is arranged with the multiple products of one-pass molding
The production efficiency of cylinder, product performance index remanent magnetism will not have loss.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is A-A the schematic diagram of the section structure in Fig. 1 of the invention；
Fig. 3 is elliptical arc surface section of the invention, section segment structure schematic diagram.
In figure: 1 fixed plate, 2 side plates, 201 retention beads, 3 demarcation plates, 4 seaming chucks, 5 push-down heads, 6 shaping mold cavities, 7 ellipse
Arc surface section, 8 sections section.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
As shown in Figure 1-3, a kind of radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die, including side plate 2, the side plate
2 it is opposite disposed there are two, made of Cr12 die steel, push-down head 5 and seaming chuck 4 be equipped between the side plate 2, under described
Pressure head 5 and 4 closed end of seaming chuck form shaping mold cavity 6, and the middle part of the side plate 2 is fixed with demarcation plate 3, the demarcation plate 3
It is pushed against with the end of push-down head 5, the end integrated setting of two side plates 2 has the retention bead 201 extended inwardly, institute
Stating clamping fixed between 5 end of inside and push-down head of retention bead 201 has fixed plate 1.
The Length x Width of the push-down head 5 and seaming chuck 4 is all the same, is made of 70Mn steel, when seaming chuck 4 moves down
When, the downward pressure head 5 of powder and seaming chuck 4 can be subjected to concentration compression, using push-down head 5 and seaming chuck 4 to powder carry out at
Type.
The sum of the height of the push-down head 5 and seaming chuck 4 is identical as the height of side plate 2, when seaming chuck 4 is completely forced into mold
When, the sizing to powder can be completed.
The middle part of the side plate 2 is equipped with card slot, and the both ends of the demarcation plate 3 are stuck in card slot, the demarcation plate 3
Both ends are equipped with chamfering, convenient that demarcation plate 3 is fixed.
The shaping mold cavity 6 is surrounded by two half elliptic grooves, and the semiellipse groove of doing includes being located at middle part
7 both ends of elliptical arc surface section 7 and elliptical arc surface section section section 8, section section 8 is 20- with vertical direction included angle
30 °, product is cracked during can effectively avoid compression moulding.
A kind of production method of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die, including following operating procedure:
S1: the both ends of demarcation plate 3 are separately fixed in the groove of 2 inside of side plate, then two push-down heads 5 are put respectively by assembling
It sets between the side plate 2 of 3 two sides of demarcation plate, then 1 clamping fixed of fixed plate is completed into assembling at the both ends of side plate 2；
S2: the neodymium-iron-boron powder for completing to weigh is directed respectively into the mold cavity of 3 two sides of demarcation plate by feeding, is paved uniformly；
S3: seaming chuck 4 is aligned with 3 two side areas of demarcation plate by compression moulding respectively, and half elliptic groove is downward, confirmation
After errorless, seaming chuck 4 is completely forced into using press, the pressure of press is 90T, and press binder speed is 1cm/s, then passes through magnetic
Mold is taken out field to powder oriented moulding；
S4: two side plates 2 are split to both sides first, then fixed plate 1 are taken out by demoulding, remove seaming chuck 4, take out shaping mould
Neodymium iron boron cylindrical blank in chamber 6 is sent into agglomerating chamber and is sintered.
The present invention is cooperated by seaming chuck 4 and push-down head 5, and neodymium-iron-boron powder can be pressed into the hair of near cylindrical
Base, save raw material, by using various sizes of molding die, not only can with the product of compression moulding diameter 20mm or more,
20 mm of diameter product below can be suppressed, by the way that multiple groups shaping mold cavity 6 is arranged, can be improved with the multiple products of one-pass molding
The production efficiency of neodymium iron boron cylinder, product performance index remanent magnetism will not have loss.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die, including side plate (2), it is characterised in that: the side plate
(2) there are two opposite disposed, push-down head (5) and seaming chuck (4), the push-down head (5) and upper pressure are equipped between the side plate (2)
Head (4) closed end forms shaping mold cavity (6), is fixed with demarcation plate (3) in the middle part of the side plate (2), the demarcation plate (3) with
The end of push-down head (5) pushes against, and the end integrated setting of two side plates (2) has the retention bead extended inwardly
(201), clamping fixed has fixed plate (1) between the inside of the retention bead (201) and push-down head (5) end.
2. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute
The Length x Width for stating push-down head (5) and seaming chuck (4) is all the same.
3. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute
It is identical as the height of side plate (2) to state the sum of height of push-down head (5) and seaming chuck (4).
4. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute
The middle part for stating side plate (2) is equipped with card slot, and the both ends of the demarcation plate (3) are stuck in card slot, the both ends of the demarcation plate (3)
It is equipped with chamfering.
5. a kind of radial magnetized neodymium ferrum boron cylindrical blank according to claim 1 forms whole set of die, it is characterised in that: institute
It states shaping mold cavity (6) to be surrounded by two half elliptic grooves, the semiellipse groove of doing includes the elliptic arc positioned at middle part
The section section (8) at face section (7) and elliptical arc surface section (7) both ends, the section section (8) and vertical direction included angle are 20-
30°。
6. the life of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die described in a kind of -5 any one according to claim 1
Production method, it is characterised in that: including following operating procedure:
S1: the both ends of demarcation plate (3) are separately fixed in the groove on the inside of side plate (2) by assembling, then by two push-down heads (5)
It is individually positioned between the side plate (2) of demarcation plate (3) two sides, then by fixed plate (1) clamping fixed at the both ends of side plate (2), it is complete
At assembling；
S2: the neodymium-iron-boron powder for completing to weigh is directed respectively into the mold cavity of demarcation plate (3) two sides by feeding, is paved uniformly；
S3: seaming chuck (4) is aligned with demarcation plate (3) two side areas by compression moulding respectively, and half elliptic groove is downward,
Confirm it is errorless after, seaming chuck (4) is completely forced into using press, then by magnetic field to powder oriented moulding, take out mold；
S4: two side plates (2) are split to both sides first, then fixed plate (1) are taken out by demoulding, are removed seaming chuck (4), are taken out
Neodymium iron boron cylindrical blank in shaping mold cavity (6) is sent into agglomerating chamber and is sintered.
7. a kind of production method of radial magnetized neodymium ferrum boron cylindrical blank molding whole set of die according to claim 6,
Be characterized in that: the pressure of press is 80-100T in step S3, and press binder speed is 1cm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090090.2A CN109014188A (en) | 2018-09-18 | 2018-09-18 | Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090090.2A CN109014188A (en) | 2018-09-18 | 2018-09-18 | Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109014188A true CN109014188A (en) | 2018-12-18 |
Family
ID=64616847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811090090.2A Pending CN109014188A (en) | 2018-09-18 | 2018-09-18 | Radial magnetized neodymium ferrum boron cylindrical blank forms whole set of die and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109014188A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435621A (en) * | 2019-01-11 | 2020-07-21 | 京瓷株式会社 | Core member, method of manufacturing core member, and inductor |
| CN115301946A (en) * | 2022-08-18 | 2022-11-08 | 杨俊林 | Method for improving waist drum shape of neodymium iron boron sintered blank magnet and die pressure head thereof |
| CN116994873A (en) * | 2023-08-15 | 2023-11-03 | 东莞市江合磁业科技有限公司 | Mould for manufacturing radial sintered NdFeB cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116994873A (en) * | 2023-08-15 | 2023-11-03 | 东莞市江合磁业科技有限公司 | Mould for manufacturing radial sintered NdFeB cylinder |
| CN116994873B (en) * | 2023-08-15 | 2024-01-19 | 东莞市江合磁业科技有限公司 | Mould for manufacturing radial sintered NdFeB cylinder |
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Application publication date: 20181218 |