CN104028754B - The manufacture device of neodymium iron boron spheroid - Google Patents
The manufacture device of neodymium iron boron spheroid Download PDFInfo
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- CN104028754B CN104028754B CN201410244436.5A CN201410244436A CN104028754B CN 104028754 B CN104028754 B CN 104028754B CN 201410244436 A CN201410244436 A CN 201410244436A CN 104028754 B CN104028754 B CN 104028754B
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- spheroid
- neodymium iron
- iron boron
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Abstract
The invention discloses the manufacture device of a kind of neodymium iron boron spheroid.This manufacture device includes: magnetic conductive board, and it is mutually to detain two pieces set, and the opposite face of these two pieces of magnetic conductive boards is respectively provided with the multiple semi-cylindrical die face being arranged side by side, and the both sides of this die face offer pasting board groove respectively；Pasting board, it is two, and these two pasting boards are laid in the pasting board groove mutually detaining the two pieces of magnetic conductive boards set respectively, and the semi-cylindrical die face of two pieces of magnetic conductive boards and the medial surface of pasting board are collectively forming multiple cylindrical die cavity being arranged side by side；And upper punch and bottom punch, it is the cylinder that the die cavity with described cylinder is adaptive, it is possible to that relatively slides is arranged in this die cavity, and the opposite face of upper punch and bottom punch offers the shaping groove of semielliptical shape respectively.This neodymium iron boron spheroid manufacture the consistent size of all directions after the spheroid neodymium iron boron after device makes shaping shrinks, grinding allowance is little, reduces the cost that feeds intake, improves magnet steel production efficiency.
Description
Technical field
The present invention relates to sintered NdFeB field, particularly to the manufacture device of a kind of neodymium iron boron spheroid.
Background technology
At present, ndfeb magnet has the advantages that volume is little, lightweight and magnetic is strong, is that magnetic is the most now
Strong permanent magnet, the specification of production is generally cylinder or cuboid.But for neodymium iron boron spheroid,
The characteristic of neodymium iron boron powder freedom, suppress, to be orientated three direction shrinkage ratios different, it is difficult to keep spherical
Sintering briquette, being difficult to sinter, therefore for prior art is suppressed, straight forming is difficult.
Existing neodymium iron boron spheroid is typically first to be pressed into cylinder or cuboid, then cuts through mill, line is cut
It is processed into neodymium iron boron spheroid, but the material unaccounted-for (MUF) of this kind of neodymium iron boron spheroid manufacture method is many, takes a lot of work and time-consuming,
Its utilization rate of raw materials and working (machining) efficiency are the most relatively low, cause production cost to increase accordingly.
The information being disclosed in this background section is merely intended to increase the reason of the general background to the present invention
Solve, and be not construed as recognizing or imply in any form that this information structure is for this area general technology
Prior art well known to personnel.
Summary of the invention
It is an object of the invention to provide the manufacture device of a kind of simple and reasonable neodymium iron boron spheroid, should
The device that manufactures of neodymium iron boron spheroid designs shaping groove according to the gradient shrinkage ratio of spheroid neodymium iron boron difference section,
The consistent size of all directions after spheroid rare earth magnetic steel is shunk, grinding allowance is little, reduces the cost that feeds intake,
Improve magnet steel production efficiency.
For achieving the above object, the invention provides the manufacture device of neodymium iron boron spheroid, including: magnetic conductive board,
It is for mutually to detain two pieces set, and the opposite face of these two pieces of magnetic conductive boards is respectively provided with the multiple semicircles being arranged side by side
The die face of cylindricality, the both sides of this die face offer pasting board groove respectively；Pasting board, it is two, these two patches
Plate is laid in the pasting board groove mutually detaining the two pieces of magnetic conductive boards set respectively, the semicolumn of described two pieces of magnetic conductive boards
The die face of shape and the medial surface of pasting board are collectively forming multiple cylindrical die cavity being arranged side by side；And upper mold
Punching and bottom punch, it is the cylinder that the die cavity with described cylinder is adaptive, it is possible to the setting relatively slided
In this die cavity, the opposite face of described upper punch and bottom punch offers the shaping groove of semielliptical shape respectively.
Preferably, in technique scheme, shaping groove shrinks according to the gradient of spheroid neodymium iron boron difference section
Ratio designs.
Preferably, in technique scheme, two pieces of magnetic conductive boards are collectively forming die cavity with pasting board, and pass through spiral shell
Bolt is fixed through two pieces of magnetic conductive boards and pasting board.
Preferably, in technique scheme, the degree of depth of die cavity hanging down more than spheroid neodymium iron boron magnetic body to be pressed
Straight height.
Compared with prior art, there is advantages that the manufacture device of this neodymium iron boron spheroid
Gradient shrinkage ratio design shaping groove according to spheroid neodymium iron boron difference section so that the spheroid neodymium iron after shaping
Boron (rare earth magnetic steel) is the consistent size of all directions after shrinking, and grinding allowance is little, reduces the cost that feeds intake,
Improve magnet steel production efficiency.
Accompanying drawing explanation
Fig. 1 is the perspective view manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 2 is the decomposition texture schematic diagram manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 3 a is the shaping groove main TV structure schematic diagram manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 3 b is the shaping groove side-looking structural representation manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 3 c is the shaping groove plan structure schematic diagram manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 4 a is the spheroid neodymium iron boron main TV structure schematic diagram manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 4 b is the spheroid neodymium iron boron side-looking structural representation manufacturing device of the neodymium iron boron spheroid of the present invention.
Fig. 4 c is the spheroid neodymium iron boron plan structure schematic diagram manufacturing device of the neodymium iron boron spheroid of the present invention.
Description of reference numerals:
1-magnetic conductive board, 2-pasting board, 3-upper punch, 4-bottom punch.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in detail, it is to be understood that this
The protection domain of invention is not limited by detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " bag
Include " or its conversion as " comprising " or " including " etc. will be understood to comprise stated element or
Part, and do not get rid of other element or other part.
As depicted in figs. 1 and 2, according to the manufacture device of the neodymium iron boron spheroid of the specific embodiment of the invention
Concrete structure include: form the magnetic conductive board 1 of die cavity and pasting board 2, and being arranged on of can relatively sliding
Upper punch 3 in this die cavity, bottom punch 4.Wherein, the opposite face of upper punch 3 and bottom punch 4 is opened respectively
It is provided with the relative slip in die cavity of the shaping groove of semielliptical shape, upper punch 3 and bottom punch 4, to pressure, to make
The neodymium iron boron powder in die cavity must be poured into and form spheroid pressed compact, i.e. complete the shaping work of neodymium iron boron spheroid.
Wherein, magnetic conductive board 1 is mutually to detain two pieces set, and the opposite face of two pieces of magnetic conductive boards 1 is respectively provided with also
The multiple semi-cylindrical die face that row is arranged, the both sides of this die face offer pasting board groove respectively, and pasting board 2 is
Two, two pieces of magnetic conductive boards 1 mutually detain (two pieces of magnetic conductive boards 1 do not contact) when setting, two pasting board 2 cloth respectively
It is located in the pasting board groove of two pieces of magnetic conductive boards 1.Now, the semi-cylindrical die face of two pieces of magnetic conductive boards 1 and patch
The medial surface of plate 2 is collectively forming the multiple cylinders being arranged side by side manufacturing device of this neodymium iron boron spheroid
Die cavity, and be fixed through two pieces of magnetic conductive boards 1 and pasting board 2 by bolt.Cavity depth is more than spheroid
The vertical height of neodymium-iron-boron.
Upper punch 3 and bottom punch 4 are the cylindrical mold cavities adaptation with magnetic conductive board 1 and pasting board 2 formation
Cylinder, it is possible to that relatively slides is arranged in this die cavity.The opposite face of upper punch 3 and bottom punch 4 divides
Do not offer the shaping groove of semielliptical shape, upper punch 3 and bottom punch 4 in die cavity relative slide to pressure,
The neodymium iron boron powder pouring in die cavity is made to form spheroid pressed compact.
Shaping groove designs according to the shrinkage ratio of spheroid neodymium iron boron different directions, and neodymium iron boron pressed compact is becoming
From the power in three directions during type, respectively pressing direction, differently-oriented directivity and free direction, such as Fig. 3 a extremely
Shown in Fig. 3 c, the size in three directions in shaping groove pressing direction, differently-oriented directivity and free direction is respectively
For A, B, C, as shown in Fig. 4 a to Fig. 4 c, neodymium iron boron spheroid pressing direction, differently-oriented directivity and freedom
The size in three directions in direction is respectively A', B', C', then the contraction of spheroid neodymium iron boron different directions is such as
Shown in table 1.It is to utilize the size in neodymium iron boron spheroid (magnet steel) three directions to be multiplied by three directions during calculating
Shrinkage ratio design shaping groove, simultaneously up and down the groove of stamping is polished, and reduces and is orientated powder
Impact so that being positive spheroid Nd-Fe-B magnet steel after Shao Jie.
Table 1
During as in figure 2 it is shown, make multiple neodymium iron boron spheroid, first magnetic conductive board 1 and pasting board 2 are assembled,
To form multiple cylindrical die cavity being arranged side by side, neodymium iron boron powder is poured in die cavity, upper punch 3
Relative in die cavity with bottom punch 4 slide to pressure so that pour neodymium iron boron powder in die cavity into and form ellipsoid
Body pressed compact, i.e. completes the shaping work of multiple neodymium iron boron spheroid, secondly isostatic pressed, then is fired operation.
To sum up, the device that manufactures of this neodymium iron boron spheroid sets according to the gradient shrinkage ratio of spheroid neodymium iron boron difference section
Meter shaping groove so that the chi of all directions after spheroid neodymium iron boron (rare earth magnetic steel) contraction after shaping
Very little unanimously grinding allowance is little, reduces the cost that feeds intake, improves magnet steel production efficiency.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.
These descriptions are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned
Teaching, can much change and change.The purpose selected exemplary embodiment and describe exists
In explaining the certain principles of the present invention and actual application thereof, so that those skilled in the art can be real
Now and utilize the various different exemplary of the present invention and various different selection and change.
The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (3)
1. the manufacture device of a neodymium iron boron spheroid, it is characterised in that including:
Magnetic conductive board, it is mutually to detain two pieces set, and the opposite face of these two pieces of magnetic conductive boards is respectively provided with and sets side by side
The multiple semi-cylindrical die face put, the both sides of this die face offer pasting board groove respectively；
Pasting board, it is two, and these two pasting boards are laid in the pasting board mutually detaining the two pieces of magnetic conductive boards set respectively
In groove, the semi-cylindrical die face of described two pieces of magnetic conductive boards and the medial surface of pasting board be collectively forming multiple side by side
The cylindrical die cavity arranged；And
Multiple upper punch and bottom punch, it is the cylinder that die cavity with described cylinder is adaptive, described on
What stamping can relative slide with bottom punch is arranged in this die cavity, and described upper punch is relative with bottom punch
Face offers the shaping groove of semielliptical shape respectively；Described shaping groove pressing direction, differently-oriented directivity and
The size in three directions in free direction respectively utilizes the size in three directions of neodymium iron boron spheroid to be multiplied by three
The shrinkage ratio design in direction；Described shaping groove is polished.
The manufacture device of neodymium iron boron spheroid the most according to claim 1, it is characterised in that described two
Block magnetic conductive board and pasting board are collectively forming die cavity, and are fixed through two pieces of magnetic conductive boards and pasting board by bolt.
The manufacture device of neodymium iron boron spheroid the most according to claim 2, it is characterised in that described mould
The degree of depth in chamber is more than the vertical height of neodymium iron boron spheroid to be pressed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244436.5A CN104028754B (en) | 2014-06-04 | 2014-06-04 | The manufacture device of neodymium iron boron spheroid |
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| CN201410244436.5A CN104028754B (en) | 2014-06-04 | 2014-06-04 | The manufacture device of neodymium iron boron spheroid |
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| CN104028754A CN104028754A (en) | 2014-09-10 |
| CN104028754B true CN104028754B (en) | 2016-09-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105838958B (en) * | 2016-05-16 | 2017-06-20 | 东莞理工学院 | A kind of preparation method of hard alloy pole material |
| CN106493359B (en) * | 2016-11-17 | 2018-10-09 | 宁波韵升股份有限公司 | A kind of molding die preparing multipole sintered rare-earth permanent magnetic body green compact |
| CN109014187A (en) * | 2018-09-18 | 2018-12-18 | 安徽宁磁电子科技有限公司 | Magnetic ball blank forms whole set of die and its production method |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007103606A (en) * | 2005-10-03 | 2007-04-19 | Tdk Corp | Molding device in magnetic field, and mold |
| CN201316802Y (en) * | 2008-12-11 | 2009-09-30 | 山西高科稀土有限公司 | Press-forming die of neodymium iron boron sphere |
| CN201755657U (en) * | 2009-12-22 | 2011-03-09 | 宁波同创强磁材料有限公司 | Ball-type neodymium-iron-boron die |
| CN202199769U (en) * | 2011-07-13 | 2012-04-25 | 上海洛克磁业有限公司 | Semi-circle ring pressing mould |
| 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 |
| CN103302289B (en) * | 2013-06-08 | 2015-05-20 | 徐州金石彭源稀土材料厂 | Adjustable forming mould of neodymium iron boron magnetic material |
| CN203541525U (en) * | 2013-11-28 | 2014-04-16 | 山西中泰源工业自动化设备有限公司 | Die of robot system for die-cast formation of magnetic material |
| CN203956080U (en) * | 2014-06-04 | 2014-11-26 | 中磁科技股份有限公司 | The manufacturing installation of neodymium iron boron spheroid |
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