CN109014187A - Magnetic ball blank forms whole set of die and its production method - Google Patents
Magnetic ball blank forms whole set of die and its production method Download PDFInfo
- Publication number
- CN109014187A CN109014187A CN201811089713.4A CN201811089713A CN109014187A CN 109014187 A CN109014187 A CN 109014187A CN 201811089713 A CN201811089713 A CN 201811089713A CN 109014187 A CN109014187 A CN 109014187A
- Authority
- CN
- China
- Prior art keywords
- side plate
- cylindroid
- magnetic ball
- die
- seaming chuck
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000004826 seaming Methods 0.000 claims abstract description 28
- 239000011324 bead Substances 0.000 claims abstract description 12
- 230000014759 maintenance of location Effects 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 18
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- WUJISAYEUPRJOG-UHFFFAOYSA-N molybdenum vanadium Chemical compound [V].[Mo] WUJISAYEUPRJOG-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 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
- 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
- B22F3/10—Sintering only
-
- 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)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of magnetic ball blank molding whole set of die and its production methods, it includes big side plate that magnetic ball blank, which forms whole set of die, the big side sheet room is there are two opposite disposed, former side plate is fixed with by caulking groove in the middle part of the medial surface of each big side plate, the medial surface of two former side plates is equipped with semiellipse column chamber, two semiellipse column chambers are closed to form cylindroid chamber, the cylindroid is intracavitary to be placed with seaming chuck and push-down head, the equal integration in both ends of the big side plate is provided with vertically extending retention bead inwardly, clamping fixed has small side plate between the retention bead and the end of former side plate.Neodymium-iron-boron powder is directly pressed into spherical blank by mold and is sintered by the present invention, the neodymium-iron-boron ball of almost spherical can be directly obtained after sintering, avoid the waste of raw material, good forming effect, improve the yield rate of neodymium-iron-boron ball, mold assembly and disassembly is convenient, is suitble to batch machining neodymium-iron-boron ball, high production efficiency.
Description
Technical field
The invention belongs to neodium magnet production mould technical fields, and in particular to a kind of magnetic ball blank molding 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.
The most common method of sintered NdFeB magnetic ball production is the cylinder of the first size needed for molding compacting accordingly, through burning
Form cylindrical blank, cylinder machining and mill are being processed as ball.But the above method has following defects that material wave
Take seriously, processing capacity is larger, and yield rate is very low.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetic ball blank molding whole set of die and its production methods, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of magnetic ball blank forms whole set of die, including it is big
Side plate, the big side sheet room are fitted and fixed with there are two opposite disposed by caulking groove in the middle part of the medial surface of each big side plate
There is former side plate, the medial surface of two former side plates is equipped with semiellipse column chamber, two semiellipse column chamber closeds
At cylindroid chamber, the cylindroid is intracavitary to be placed with seaming chuck and push-down head, and the equal integration in both ends of the big side plate is provided with
Vertically extending retention bead inwardly, clamping fixed has small side plate between the retention bead and the end of former side plate.
Preferably, the ratio between the long axis of the cylindroid chamber and short axle are 6:5.
Preferably, the cylindroid cavity wall is shiny surface, and seaming chuck and push-down head and cylindroid chamber shape are coincide, institute
It is identical as the height of cylindroid chamber to state the sum of seaming chuck and pushing grease head highness.
Preferably, the height of the seaming chuck is to push twice of grease head highness, and the end that seaming chuck is in contact with push-down head
Half elliptic groove is equipped on face, two half elliptic grooves are closed to form shaping mold cavity.
Meanwhile the invention also discloses a kind of production methods of magnetic ball blank molding whole set of die, including following operation step
It is rapid:
S1: assembly mold will be fixed with the opposed two sides for being placed on push-down head of two big side plate of former side plate, on push-down head
Half elliptic groove is upward, and two big side plate is promoted inwardly and is drawn close, is fixed on big side plate using small side plate card gold later
Between retention bead and former side end, two big side plate is fixed, so that the semiellipse column chamber of former side plate interior sides
Closure forms cylindroid chamber, and upper and lower size is identical；
S2: the powder for weighing up weight is imported the intracavitary portion of cylindroid by filler；
S3: compacting, the half elliptic groove that seaming chuck is put into the intracavitary portion of cylindroid and seaming chuck is downward, will be whole after confirmation is errorless
Mould is transferred in press, is started press, it is intracavitary that seaming chuck is completely forced into cylindroid, then be orientated to powder by magnetic field
Type takes out mold；
S4: demoulding first splits two big side plate to both sides, then small side plate is removed to both ends, gently takes away seaming chuck, takes
Magnetic ball blank in shaping mold cavity out is sent into sintering in sintering machine, because the contraction of magnetic ball different directions is different after coming out of the stove,
It can be a very close spherical blank after coming out of the stove.
Preferably, the pressure of press is 100-200T in step S3, and press binder speed is 1cm/s.
Technical effect and advantage of the invention:
Neodymium-iron-boron powder is directly pressed into spherical blank by mold and is sintered by the present invention, and approximation can be directly obtained after sintering
Spherical neodymium-iron-boron ball avoids the waste of raw material, suppresses high-efficient, good forming effect, improve neodymium-iron-boron ball at
Product rate, mold assembly and disassembly is convenient, is suitble to batch machining neodymium-iron-boron ball, high production efficiency.
Detailed description of the invention
Fig. 1 is overlooking structure diagram of the invention；
Fig. 2 is A-A the schematic diagram of the section structure in Fig. 1 of the invention；
Fig. 3 is big side plate and cavity side board assembling structure schematic diagram of the invention.
In figure: under 1 small side plate, 2 big side plates, 201 retention beads, 3 former side plates, 301 semiellipse column chambers, 4 seaming chucks, 5
Pressure head, 6 caulking grooves, 7 shaping mold cavities.
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 magnetic ball blank forms whole set of die, including big side plate 2, material is 12 molybdenum vanadium mold of chromium
Steel, the big side plate 2 be spaced it is opposite disposed there are two, be fitted and fixed in the middle part of the medial surface of each big side plate 2 by caulking groove 6
There is former side plate 3, the medial surface of two former side plates 3 is equipped with semiellipse column chamber 301, two semiellipse column chambers
301 closures form cylindroid chamber, and the cylindroid is intracavitary to be placed with seaming chuck 4 and push-down head 5, and the both ends of the big side plate 2 are equal
The retention bead 201 that the oriented inner vertical of integrated setting extends, between the retention bead 201 and the end of former side plate 3
Clamping fixed has small side plate 1, and small side plate 1 is 70 manganese steel.
The ratio between the long axis of the cylindroid chamber and short axle are 6:5.
The cylindroid cavity wall is shiny surface, and seaming chuck 4 and push-down head 5 and cylindroid chamber shape are coincide, it is described on
The sum of 5 height of pressure head 4 and push-down head is identical as the height of cylindroid chamber, is conducive to seaming chuck 4 along cylindroid chamber and moves down compression
Powder.
The height of the seaming chuck 4 is twice of 5 height of push-down head, and cylindroid is intracavitary, and there are abundant spaces to fill Nd-Fe-B powder
Material, and half elliptic groove, two half elliptic groove closeds are equipped on the end face that is in contact with push-down head 5 of seaming chuck 4
At shaping mold cavity 7, so that powder is pressed into chondritic blank.
Meanwhile the invention also discloses a kind of production methods of magnetic ball blank molding whole set of die, including following operation step
It is rapid:
S1: assembly mold will be fixed with the opposed two sides for being placed on push-down head 5 of two big side plate 2 of former side plate 3, push-down head 5
On half elliptic groove it is upward, two big side plate 2 is promoted inwardly and is drawn close, is fixed on big side using small side plate card gold later
Between 3 end of retention bead 201 and former side plate of plate 2, two big side plate 2 is fixed, so that 3 inside of former side plate
The closure of semiellipse column chamber 301 forms cylindroid chamber, and upper and lower size is identical；
S2: the powder for weighing up weight is imported the intracavitary portion of cylindroid by filler；
S3: compacting, the half elliptic groove that seaming chuck 4 is put into the intracavitary portion of cylindroid and seaming chuck 4 is downward, will after confirmation is errorless
Unitary mould is transferred in press, starts press, seaming chuck 4 is completely forced into cylindroid is intracavitary, and the pressure of press is 150T, pressure
Machine binder speed is 1cm/s, then takes out mold to powder oriented moulding by magnetic field；
S4: demoulding first splits two big side plate 2 to both sides, then small side plate 1 is removed to both ends, gently takes away seaming chuck
4, the magnetic ball blank in shaping mold cavity 7 is taken out, is sent into sintering in sintering machine, after coming out of the stove not because of the contraction of magnetic ball different directions
Together, so can be a very close spherical blank after coming out of the stove.
Neodymium-iron-boron powder is directly pressed into spherical blank by mold and is sintered by the present invention, can be directly obtained after sintering
The neodymium-iron-boron ball of almost spherical avoids the waste of raw material, suppresses high-efficient, good forming effect, improves neodymium-iron-boron ball
Yield rate, mold assembly and disassembly is convenient, is suitble to batch machining neodymium-iron-boron ball, high production efficiency.
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 (6)
1. a kind of magnetic ball blank forms whole set of die, including big side plate (2), it is characterised in that: big side plate (2) interval is opposed
There are two settings, is fixed with former side plate (3) in the middle part of the medial surface of each big side plate (2) by caulking groove (6), two
The medial surface of the former side plate (3) is equipped with semiellipse column chamber (301), and two semiellipse column chamber (301) closures are formed
Cylindroid chamber, the cylindroid is intracavitary to be placed with seaming chuck (4) and push-down head (5), and the both ends of the big side plate (2) are integrated
It is provided with vertically extending retention bead (201) inwardly, between the retention bead (201) and the end of former side plate (3)
Clamping fixed has small side plate (1).
2. a kind of magnetic ball blank according to claim 1 forms whole set of die, it is characterised in that: the length of the cylindroid chamber
The ratio between axis and short axle are 6:5.
3. a kind of magnetic ball blank according to claim 1 forms whole set of die, it is characterised in that: the cylindroid cavity wall
For shiny surface, and seaming chuck (4) and push-down head (5) and cylindroid chamber shape are coincide, and the seaming chuck (4) and push-down head (5) are high
The sum of degree is identical as the height of cylindroid chamber.
4. a kind of magnetic ball blank according to claim 1 forms whole set of die, it is characterised in that: the seaming chuck (4)
Height is twice of push-down head (5) height, and is equipped with half elliptic on the end face that is in contact with push-down head (5) of seaming chuck (4)
Groove, two half elliptic grooves are closed to form shaping mold cavity (7).
5. a kind of production method of magnetic ball blank molding whole set of die according to any one of claims 1-4, feature
It is: including following operating procedure:
S1: assembly mold will be fixed with the opposed two sides for being placed on push-down head (5) of two big side plate (2) of former side plate (3),
Half elliptic groove on push-down head (5) is upward, and two big side plate (2) is promoted inwardly and is drawn close, and uses small side plate card later
Gold is fixed between the retention bead (201) of big side plate (2) and former side plate (3) end, is consolidated to two big side plate (2)
Fixed, so that semiellipse column chamber (301) closure on the inside of former side plate (3) forms cylindroid chamber, upper and lower size is identical；
S2: the powder for weighing up weight is imported the intracavitary portion of cylindroid by filler；
S3: compacting, the half elliptic groove that seaming chuck (4) is put into the intracavitary portion of cylindroid and seaming chuck (4) is downward, confirms errorless
Unitary mould is transferred in press afterwards, starts press, it is intracavitary that seaming chuck (4) is completely forced into cylindroid, then passes through magnetic field pair
Powder oriented moulding takes out mold；
S4: demoulding first splits two big side plate (2) to both sides, then small side plate (1) is removed to both ends, gently takes away
Pressure head (4) takes out the magnetic ball blank in shaping mold cavity (7), sintering in sintering machine is sent into, because of magnetic ball different directions after coming out of the stove
Difference is shunk, so can be a very close spherical blank after coming out of the stove.
6. a kind of production method of magnetic ball blank molding whole set of die according to claim 5, it is characterised in that: step S3
The pressure of middle press is 100-200T, and press binder speed is 1cm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089713.4A CN109014187A (en) | 2018-09-18 | 2018-09-18 | Magnetic ball blank forms whole set of die and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089713.4A CN109014187A (en) | 2018-09-18 | 2018-09-18 | Magnetic ball blank forms whole set of die and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109014187A true CN109014187A (en) | 2018-12-18 |
Family
ID=64616849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811089713.4A Pending CN109014187A (en) | 2018-09-18 | 2018-09-18 | Magnetic ball blank forms whole set of die and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109014187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310796A (en) * | 2019-07-28 | 2019-10-08 | 金华市新利磁业工贸有限公司 | A kind of Magnetic force ball and its production method |
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| CN202845777U (en) * | 2012-09-11 | 2013-04-03 | 江西磊源永磁材料有限公司 | Permanent magnet sphere press-molding mold |
| CN104028754A (en) * | 2014-06-04 | 2014-09-10 | 中磁科技股份有限公司 | Nd-Fe-B sphere manufacturing device |
| CN104134529A (en) * | 2014-07-21 | 2014-11-05 | 华南理工大学 | Anisotropic nanocrystal neodymium iron boron magnet, and preparation method and application of magnet |
| CN205949859U (en) * | 2016-08-24 | 2017-02-15 | 广州晶体科技有限公司 | String of beads cold stamping die |
| US20170062105A1 (en) * | 2015-08-28 | 2017-03-02 | Tianhe (Baotou) Advanced Tech Magnet Co., Ltd. | Rare earth permanent magnet material and manufacturing method thereof |
| CN207681478U (en) * | 2017-12-29 | 2018-08-03 | 宁波金坦磁业有限公司 | Neodymium iron boron magnetic body press-moulding die |
| CN208853707U (en) * | 2018-09-18 | 2019-05-14 | 安徽宁磁电子科技有限公司 | Magnetic ball blank forms whole set of die |
-
2018
- 2018-09-18 CN CN201811089713.4A patent/CN109014187A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202845777U (en) * | 2012-09-11 | 2013-04-03 | 江西磊源永磁材料有限公司 | Permanent magnet sphere press-molding mold |
| CN104028754A (en) * | 2014-06-04 | 2014-09-10 | 中磁科技股份有限公司 | Nd-Fe-B sphere manufacturing device |
| CN104134529A (en) * | 2014-07-21 | 2014-11-05 | 华南理工大学 | Anisotropic nanocrystal neodymium iron boron magnet, and preparation method and application of magnet |
| US20170062105A1 (en) * | 2015-08-28 | 2017-03-02 | Tianhe (Baotou) Advanced Tech Magnet Co., Ltd. | Rare earth permanent magnet material and manufacturing method thereof |
| CN205949859U (en) * | 2016-08-24 | 2017-02-15 | 广州晶体科技有限公司 | String of beads cold stamping die |
| CN207681478U (en) * | 2017-12-29 | 2018-08-03 | 宁波金坦磁业有限公司 | Neodymium iron boron magnetic body press-moulding die |
| CN208853707U (en) * | 2018-09-18 | 2019-05-14 | 安徽宁磁电子科技有限公司 | Magnetic ball blank forms whole set of die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310796A (en) * | 2019-07-28 | 2019-10-08 | 金华市新利磁业工贸有限公司 | A kind of Magnetic force ball and its production method |
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Application publication date: 20181218 |
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