CN104028754A - Nd-Fe-B sphere manufacturing device - Google Patents
Nd-Fe-B sphere manufacturing device Download PDFInfo
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- CN104028754A CN104028754A CN201410244436.5A CN201410244436A CN104028754A CN 104028754 A CN104028754 A CN 104028754A CN 201410244436 A CN201410244436 A CN 201410244436A CN 104028754 A CN104028754 A CN 104028754A
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- spheroid
- magnetic conductive
- iron boron
- neodymium iron
- die
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Abstract
The invention discloses an Nd-Fe-B sphere manufacturing device. The manufacturing device comprises two blocks of magnetic conductive plates buckled with each other, two flitch plates, an upper die punch and a lower die punch, wherein a plurality of semi-cylindrical die surfaces arranged side by side are respectively arranged on the opposite surfaces of the two magnetic conductive plates, and flitch plate grooves are respectively formed in the two sides of the die surfaces; the two flitch plates are respectively arranged in the flitch plate grooves of the two magnetic conductive plates buckled with each other, and a plurality of cylindrical die cavities arranged side by side are jointly formed by the semi-cylindrical die surfaces of the two magnetic conductive plates and the inner side surfaces of the flitch plates; the upper die punch and the lower die punch are cylinders matched with the cylindrical die cavities and can be arranged in the die cavities in a relative sliding way, and semi-ellipsoidal molding grooves are respectively formed in the opposite surfaces of the upper die punch and the lower die punch. With the Nd-Fe-B sphere manufacturing device, the sizes in all directions are consistent after the Nd-Fe-B sphere shrinks, the grinding allowance is small, the material investment cost is lowered, and the magnetic steel production efficiency is improved.
Description
Technical field
The present invention relates to sintered NdFeB field, particularly a kind of manufacturing installation of neodymium iron boron spheroid.
Background technology
At present, ndfeb magnet has the advantages that volume is little, lightweight and magnetic is strong, is the strongest permanent magnet of magnetic now, and the specification of production is generally cylinder or cuboid.But for neodymium iron boron spheroid, the characteristic of neodymium iron boron powder is different in free, compacting, three direction shrinkage ratios of orientation, is difficult to keep spherical sintering briquette, is difficult to sintering, and it is difficult therefore prior art being suppressed to straight forming.
Existing neodymium iron boron spheroid is normally first pressed into cylinder or cuboid, then through mill cut, line cuts and 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, take a lot of work and time-consuming, its utilization rate of raw materials and working (machining) efficiency are all lower, cause accordingly production cost to increase.
The information that is disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of manufacturing installation of simple and reasonable neodymium iron boron spheroid, the manufacturing installation of this neodymium iron boron spheroid is according to the gradient shrinkage ratio design shaping groove of the different sections of spheroid neodymium iron boron, the consistent size of all directions after spheroid rare earth magnetic steel is shunk, grinding allowance is little, reduce the cost that feeds intake, improved magnet steel production efficiency.
For achieving the above object, the manufacturing installation that the invention provides neodymium iron boron spheroid, comprising: magnetic conductive board, and it is for mutually detaining two that establish, the opposite face of these two magnetic conductive boards has respectively a plurality of semi-cylindrical die face being arranged side by side, and the both sides of this die face offer respectively pasting board groove; Pasting board, it is two, and these two pasting boards are laid in respectively in the pasting board groove of two magnetic conductive boards that mutual button establishes, and the semi-cylindrical die face of described two magnetic conductive boards and the medial surface of pasting board be common forms a plurality of columniform die cavitys that are arranged side by side; And upper punch and bottom punch, it is the cylinder with described columniform die cavity adaptation, can relative sliding be arranged in this die cavity, the opposite face of described upper punch and bottom punch offers respectively the shaping groove of semielliptical shape.
Preferably, in technique scheme, shaping groove designs according to the gradient shrinkage ratio of the different sections of spheroid neodymium iron boron.
Preferably, in technique scheme, two magnetic conductive boards and pasting board form die cavity jointly, and pass two magnetic conductive boards and pasting board is fixed by bolt.
Preferably, in technique scheme, the degree of depth of die cavity is greater than the vertical height of spheroid neodymium iron boron magnetic body to be pressed.
Compared with prior art, the present invention has following beneficial effect: the manufacturing installation of this neodymium iron boron spheroid is according to the gradient shrinkage ratio design shaping groove of the different sections of spheroid neodymium iron boron, make the consistent size of spheroid neodymium iron boron (rare earth magnetic steel) all directions after shrinking after moulding, grinding allowance is little, reduce the cost that feeds intake, improved magnet steel production efficiency.
Accompanying drawing explanation
Fig. 1 is the perspective view of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 3 a is the main TV structure schematic diagram of shaping groove of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 3 b is the shaping groove side-looking structural representation of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 3 c is the shaping groove plan structure schematic diagram of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 4 a is the main TV structure schematic diagram of spheroid neodymium iron boron of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 4 b is the spheroid neodymium iron boron side-looking structural representation of the manufacturing installation of neodymium iron boron spheroid of the present invention.
Fig. 4 c is the spheroid neodymium iron boron plan structure schematic diagram of the manufacturing installation of 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.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of the specific embodiment.
Unless separately there is other clearly to represent, otherwise in whole description and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or part, and do not get rid of other element or other part.
As depicted in figs. 1 and 2, according to the concrete structure of the manufacturing installation of the neodymium iron boron spheroid of the specific embodiment of the invention, comprise: form magnetic conductive board 1 and the pasting board 2 of die cavity, and can relative sliding be arranged on upper punch 3, the bottom punch 4 in this die cavity.Wherein, the opposite face of upper punch 3 and bottom punch 4 offers respectively the shaping groove of semielliptical shape, relative sliding is to pressing in die cavity for upper punch 3 and bottom punch 4, and the neodymium iron boron powder that makes to pour in die cavity forms spheroid pressed compact, completes the shaping work of neodymium iron boron spheroid.
Wherein, magnetic conductive board 1 is for mutually detaining two that establish, the opposite face of two magnetic conductive boards 1 has respectively a plurality of semi-cylindrical die face being arranged side by side, the both sides of this die face offer respectively pasting board groove, pasting board 2 is two, two magnetic conductive boards 1 are detained while establishing (two magnetic conductive boards 1 do not contact) mutually, and two pasting boards 2 are laid in respectively in the pasting board groove of two magnetic conductive boards 1.Now, the semi-cylindrical die face of two magnetic conductive boards 1 and the medial surface of pasting board 2 form a plurality of columniform die cavitys that are arranged side by side of the manufacturing installation of this neodymium iron boron spheroid jointly, and pass two magnetic conductive boards 1 and pasting board 2 is fixed by bolt.Cavity depth is greater than the vertical height of spheroid neodymium-iron-boron.
Upper punch 3 and bottom punch 4 are the cylinder of the cylindrical mold cavities adaptation forming with magnetic conductive board 1 and pasting board 2, can relative sliding be arranged in this die cavity.The opposite face of upper punch 3 and bottom punch 4 offers respectively the shaping groove of semielliptical shape, and relative sliding is to pressing in die cavity for upper punch 3 and bottom punch 4, and the neodymium iron boron powder that makes to pour in die cavity forms spheroid pressed compact.
Shaping groove designs according to the shrinkage ratio of spheroid neodymium iron boron different directions, neodymium iron boron pressed compact when moulding from the power of three directions, be respectively pressing direction, differently-oriented directivity and free direction, as shown in Fig. 3 a to Fig. 3 c, the size of three directions of shaping groove pressing direction, differently-oriented directivity and free direction is respectively A, B, C, as shown in Fig. 4 a to Fig. 4 c, the size of three directions of neodymium iron boron spheroid pressing direction, differently-oriented directivity and free direction is respectively A', B', C', and the shrinkage ratio of spheroid neodymium iron boron different directions is as shown in table 1.During calculating, be to utilize the size of three directions of neodymium iron boron spheroid (magnet steel) to be multiplied by the shrinkage ratio design shaping groove of three directions, the groove of simultaneously upper and lower stamping has carried out polishing, the impact of minimizing on powder orientation is positive spheroid Nd-Fe-B magnet steel thereby make after sintering.
Table 1
As shown in Figure 2, while making a plurality of neodymium iron boron spheroid, first magnetic conductive board 1 and pasting board 2 are assembled, to form a plurality of columniform die cavitys that are arranged side by side, neodymium iron boron powder is poured in die cavity, upper punch 3 and bottom punch 4 in die cavity relative sliding to pressing, the neodymium iron boron powder that makes to pour in die cavity forms spheroid pressed compact, complete the shaping work of a plurality of neodymium iron boron spheroids, its inferior static pressure, then carry out ablating work procedure.
To sum up, the manufacturing installation of this neodymium iron boron spheroid is according to the gradient shrinkage ratio design shaping groove of the different sections of spheroid neodymium iron boron, make the consistent size of the rear all directions of spheroid neodymium iron boron (rare earth magnetic steel) contraction after moulding, grinding allowance is little, reduce the cost that feeds intake, improved magnet steel production efficiency.
The aforementioned description to concrete exemplary of the present invention is for the object with illustration is described.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (4)
1. a manufacturing installation for neodymium iron boron spheroid, is characterized in that, comprising:
Magnetic conductive board, it is for mutually detaining two that establish, and the opposite face of these two magnetic conductive boards has respectively a plurality of semi-cylindrical die face being arranged side by side, and the both sides of this die face offer respectively pasting board groove;
Pasting board, it is two, and these two pasting boards are laid in respectively in the pasting board groove of two magnetic conductive boards that mutual button establishes, and the semi-cylindrical die face of described two magnetic conductive boards and the medial surface of pasting board be common forms a plurality of columniform die cavitys that are arranged side by side; And
A plurality of upper punch and bottom punch, it is the cylinder with described columniform die cavity adaptation, and what described upper punch and bottom punch can relative slidings is arranged in this die cavity, and the opposite face of described upper punch and bottom punch offers respectively the shaping groove of semielliptical shape.
2. the manufacturing installation of neodymium iron boron spheroid according to claim 1, is characterized in that, described shaping groove designs according to the shrinkage ratio free, that suppress, be orientated three directions of spheroid neodymium iron boron.
3. the manufacturing installation of neodymium iron boron spheroid according to claim 1 and 2, is characterized in that, described two magnetic conductive boards and pasting board form die cavity jointly, and passes two magnetic conductive boards and pasting board is fixed by bolt.
4. the manufacturing installation of neodymium iron boron spheroid according to claim 3, is characterized in that, the degree of depth of described die cavity is greater than the vertical height of spheroid neodymium-iron-boron to be pressed.
Priority Applications (1)
| 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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| 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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| CN104028754A true CN104028754A (en) | 2014-09-10 |
| CN104028754B CN104028754B (en) | 2016-09-07 |
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| CN201410244436.5A Active CN104028754B (en) | 2014-06-04 | 2014-06-04 | The manufacture device of neodymium iron boron spheroid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105838958A (en) * | 2016-05-16 | 2016-08-10 | 东莞理工学院 | Preparation method of hard alloy round bar |
| CN106493359A (en) * | 2016-11-17 | 2017-03-15 | 宁波韵升股份有限公司 | A kind of mould for 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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| 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 |
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| CN105838958A (en) * | 2016-05-16 | 2016-08-10 | 东莞理工学院 | Preparation method of hard alloy round bar |
| CN105838958B (en) * | 2016-05-16 | 2017-06-20 | 东莞理工学院 | A kind of preparation method of hard alloy pole material |
| CN106493359A (en) * | 2016-11-17 | 2017-03-15 | 宁波韵升股份有限公司 | A kind of mould for 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 | Publication date |
|---|---|
| CN104028754B (en) | 2016-09-07 |
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