CN102166540A - Novel ball-milling tank capable of applying magnetic field - Google Patents
Novel ball-milling tank capable of applying magnetic field Download PDFInfo
- Publication number
- CN102166540A CN102166540A CN2010106085698A CN201010608569A CN102166540A CN 102166540 A CN102166540 A CN 102166540A CN 2010106085698 A CN2010106085698 A CN 2010106085698A CN 201010608569 A CN201010608569 A CN 201010608569A CN 102166540 A CN102166540 A CN 102166540A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- permanent magnet
- magnetic
- ball
- ball grinder
- 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.)
- Granted
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The invention relates to a novel ball-milling tank capable of applying a magnetic field and belongs to the field of powder ball milling and chemosynthesis technology. The novel ball-milling tank is characterized in that cavities are arranged on the upper cover and the bottom of the ball-milling tank; movable outer covers that can be screwed and detached are disposed at the top of the upper cover and the bottom of the tank to mount and replace permanent magnets inside the cavities; and magnetic fields having different size and different magnetic line distribution are obtained through replacement of magnets and adjustment of positions of north and south magnetic poles of the upper and the lower permanent magnets. It is convenient to synthesize and crush powder of various kinds in the magnetic field to research the influence of the magnetic field upon the synthesis and crushing. It is expected to develop some new applications especially for the synthesis and crushing of magnetic materials such as ferrite, etc., as the magnetic field intensity and the magnetic line distribution are changeable so as to obtain nano-particles having particular shapes. The above synthetic method is simple, effective and of low cost.
Description
Technical field
The present invention relates to ball milling and chemosynthesis technical field, particularly a kind of novel ball grinder that applies magnetic field in the ball milling of material and the synthesis technique.
Background technology
Ferrite generally is meant the composite oxides of ferro element and other one or more metallic elements.By its crystal structure type, can be divided into spinel-type, carbuncle type, etc. seven class ferrites.Ferrite is a based semiconductor magnetic material, compares metallicl magnetic material, and ferrite has the high distinguishing feature of resistivity, thereby is widely used in real life.As: eddy-current loss is very little in alternating magnetic field, can be used as the magnetic core in the high frequency radio circuit; Kelvin effect is little, thereby electromagnetic wave also can pass through ferrite under microwave frequency band, is widely used in microwave absorption field, and gyromagnetism is used becomes the field that ferrite is monopolized.Because the resistivity height, eddy current is little, therefore is applicable to and serves as permanent magnet in the electromagnetic field of high frequency; In addition, high resistivity can reduce the magnetic head loss of magnetic recording, improves high frequency resonant characteristic.In numerous ferrites that contain different elements, the raw material of barium ferrite is cheap, chemical stability is excellent, have higher coercivity and advantages such as magnetic energy product, monadic magnetocrystalline anisotropy, be widely used as permanent-magnet material, millimere-wave band microwave material, microwave absorbing material, magnetic recording material etc.Conjugate ferrite also has high saturation magnetization and remanent magnetization degree, big coercivity and good mechanical performance and chemical stability, therefore uses very extensive in fields such as magnetic recording, senser element and magnetic fluids.
Ferritic synthetic method mainly contains solid phase method, sol-gel process, coprecipitation, hydro-thermal method, self-propagating combustion synthetic method and mechanochemical synthesis etc.Wherein solid phase method is the most traditional preparation method, but because the sintering activity of raw material lack of homogeneity, properties of product not high, that mix are lower, thereby people are inventing new method always and come processability better, more can satisfy the product of productive life needs, therefore synthetic methods such as sol-gel process, organic resin method, coprecipitation, microemulsion method are arisen at the historic moment, these methods can obtain the performance high product, but because its manufacturing cost height, equipment complexity etc. are former thereby be difficult to realize large-scale production.Mechanochemical synthesis is that a kind of effect by high-energy ball milling makes the interaction of different metal element form the method for Nano compound.Because in the mechanical milling process, powder particle generation intense plastic strain, the stress and strain that particle produces has produced a large amount of defectives in particle, significantly reduced the elemental diffusion activation energy, makes and at room temperature just may significantly carry out atom or ions diffusion between the constituent element.Mechanochemical synthesis can make material away from poised state, thereby obtains particular tissues, structure that other technology is difficult to obtain, has enlarged the performance range of material, and the tissue of material, structure are controlled.
There has been a few thing to be devoted under highfield, to carry out the synthetic of ferroelectric material in recent years, to obtain the powder that some have specific form, perhaps wish under effect of electric field synthetic powder can embody some with normal condition under the different performance of the powder that obtains.Accordingly, under the effect of certain magnetic field, also might synthesize powder, have the researcher under the effect of high-intensity magnetic field, to synthesize Conjugate ferrite particle with needle-like pattern with coprecipitation with specific form or character.Yet as previously mentioned, coprecipitation is the higher synthetic method that not too is beneficial to large-scale production of cost, providing of high-intensity magnetic field reaction chamber also has than higher difficulty and cost, and the superconducting coil that often needs to use cooled with liquid nitrogen is realized, and in built-in function certain degree of difficulty arranged also.In addition, the magnetic line of force in the magnetic field that is obtained by coil distributes and also is difficult to change.If can be with magnetic field application in mechanochemical synthesis, superconducting intense magnetic field that need not be expensive can be saved cost, and step simplifies the operation.
Even for nonmagnetic material, under the effect in magnetic field, carry out ball milling and synthetic, can embody which type of effect and result, can produce which type of influence to the character of final sample and also be one and allow the interested problem of people, also lack system and deep discussion at present.
Summary of the invention
The present invention is a kind of novel ball grinder that magnetic field is provided, and the intensity in magnetic field can be controlled by strong and weak adjusting of the magnetic of the permanent magnet that loads.It is characterized in that: it contains the movable enclosing cover (1) of caping on the ball grinder, the movable enclosing cover (2) of ball milling cover bottom, loam cake (3), tank body (4), the cavity (5) of arrangement permanent magnet, the cavity (6) of arrangement permanent magnet, and tank body ball milling space (7); Described loam cake at ball grinder (3) and tank body (4) bottom are provided with cavity (5) and (6) that are used for settling permanent magnet, the bottom of the top of loam cake (3) and tank body (4) can be installed movable enclosing cover (2) and (3) that can screw or take off respectively, to be used for installing, fixing and change permanent magnet in cavity.By the kind of change permanent magnet and the upper-lower position (just put or be inverted) of permanent magnet north and south magnetic pole, can obtain required magnetic field with different sizes and different magnetic line of force distribution situations.
The ball grinder material is materials such as polytetrafluoroethylplastic plastic or nylon, and used permanent magnet is neodymium iron boron or other rare-earth permanent magnets, and ferrite permanent magnet etc.
The invention has the beneficial effects as follows and realized under magnetic field, carrying out the synthetic of magnetic materials such as ferrite, compare other common synthetic methods, advantage is to be convenient to apply magnetic field, the distribution mode of the magnetic field intensity and the magnetic line of force is variable, and the effect in magnetic field can not be subjected to the influence of the position of ball grinder in the mechanical milling process.And the synthetic method that is adopted is simply effective, and cost is lower.
Description of drawings
Fig. 1 is the structural representation that can apply the novel ball grinder in magnetic field.
The specific embodiment
The present invention is a kind of novel ball grinder that magnetic field is provided, and Figure 1 shows that the structural representation of the novel ball grinder that can apply magnetic field.Wherein:
The movable enclosing cover of 1-ball grinder caping,
The movable enclosing cover of 2-ball milling cover bottom,
The 3-loam cake,
The 4-tank body,
Settle the cavity of permanent magnet in the 5-loam cake,
The 6-tank base is settled the cavity of permanent magnet,
7-tank body ball milling space.
Ball grinder profile and general milling jar are similar, and the general milling jar is compared at its top with bottom thickness thicker, to reserve the space of placing permanent magnet.(1) and (2) be the movable enclosing cover that screws or dismantle of ball grinder caping and bottom, form with cavity (5), (6) of loam cake (3) top and tank body (4) bottom respectively and can be used to settle and the structure of fixed permanent magnet.Come the present invention is further detailed with mechanical milling process below.
1, a permanent magnet is put into the cavity (6) of ball grinder bottom, the movable enclosing cover (2) of bottom is screwed, permanent magnet is placed in bottom cavity (6).
2, according to normal required step ceramic powder or reaction raw materials, dispersant, ball-milling medium are put into the tank body ball milling space (7) of ball grinder.
3, another piece is identical with permanent magnet that put bottom magnet is put into apex cavity (5), and enclosing cover (1) is screwed.Attention according to the experiment demand with the magnetic pole of magnet with suitable position of sound production.
4, the loam cake (3) that will install permanent magnet is placed on the ball grinder tank body (4), screws, and puts into ball mill and carries out ball milling.Similar with the use of normal ball grinder.
Claims (2)
1. novel ball grinder that can apply magnetic field, it is characterized in that: it contains the movable enclosing cover (1) of caping on the ball grinder, the movable enclosing cover (2) of ball milling cover bottom, loam cake (3), tank body (4), settle the cavity (5) of permanent magnet, settle the cavity (6) of permanent magnet, and tank body ball milling space (7); Described loam cake at ball grinder (3) and tank body (4) bottom are provided with cavity (5) and (6) that are used for settling permanent magnet, the bottom of the top of loam cake (3) and tank body (4) is installed movable enclosing cover (2) and (3) that can screw or take off respectively, to be used for installing, fixing and change permanent magnet in cavity; By the kind of change permanent magnet and the upper-lower position of permanent magnet north and south magnetic pole, can obtain required magnetic field with different sizes and different magnetic line of force distribution situations.
2. ball grinder according to claim 1 is characterized in that: the material of described ball grinder is nylon or polytetrafluoroethylplastic plastic, and applying the used permanent magnet in magnetic field is neodymium iron boron or other rare-earth permanent magnets, and ferrite permanent-magnet materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010608569 CN102166540B (en) | 2010-12-17 | 2010-12-17 | Novel ball-milling tank capable of applying magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010608569 CN102166540B (en) | 2010-12-17 | 2010-12-17 | Novel ball-milling tank capable of applying magnetic field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102166540A true CN102166540A (en) | 2011-08-31 |
| CN102166540B CN102166540B (en) | 2013-05-22 |
Family
ID=44487970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010608569 Expired - Fee Related CN102166540B (en) | 2010-12-17 | 2010-12-17 | Novel ball-milling tank capable of applying magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102166540B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778513A (en) * | 2016-03-23 | 2018-11-09 | 株式会社Lg化学 | Use the grinder of induction field |
| CN109317684A (en) * | 2018-11-09 | 2019-02-12 | 苏州铂韬新材料科技有限公司 | A kind of metal-powder flaking processing equipment and its method |
| CN113171848A (en) * | 2020-09-29 | 2021-07-27 | 中国南方电网有限责任公司电网技术研究中心 | Ball milling device for stripping natural two-dimensional clay material and stripping method thereof |
| CN114308276A (en) * | 2021-12-09 | 2022-04-12 | 贵州师范大学 | Magnetic field assisted mechanical ball milling method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3987967A (en) * | 1974-12-19 | 1976-10-26 | Jury Nikolaevich Kuznetsov | Method of working materials and device for effecting same |
| US5022592A (en) * | 1989-05-03 | 1991-06-11 | E. I. Du Pont De Nemours And Company | Magnetic media mill |
| EP0531988A1 (en) * | 1991-09-11 | 1993-03-17 | TDK Corporation | A method and apparatus for forming fine particles |
| CN2690045Y (en) * | 2004-04-29 | 2005-04-06 | 廖椿豪 | Magnetic force grinder |
| JP2007203244A (en) * | 2006-02-03 | 2007-08-16 | Michio Shibatani | Crushing and agitating method |
-
2010
- 2010-12-17 CN CN 201010608569 patent/CN102166540B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3987967A (en) * | 1974-12-19 | 1976-10-26 | Jury Nikolaevich Kuznetsov | Method of working materials and device for effecting same |
| US5022592A (en) * | 1989-05-03 | 1991-06-11 | E. I. Du Pont De Nemours And Company | Magnetic media mill |
| EP0531988A1 (en) * | 1991-09-11 | 1993-03-17 | TDK Corporation | A method and apparatus for forming fine particles |
| CN2690045Y (en) * | 2004-04-29 | 2005-04-06 | 廖椿豪 | Magnetic force grinder |
| JP2007203244A (en) * | 2006-02-03 | 2007-08-16 | Michio Shibatani | Crushing and agitating method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778513A (en) * | 2016-03-23 | 2018-11-09 | 株式会社Lg化学 | Use the grinder of induction field |
| US10888870B2 (en) | 2016-03-23 | 2021-01-12 | Lg Chem, Ltd. | Grinder using induced electric field |
| CN109317684A (en) * | 2018-11-09 | 2019-02-12 | 苏州铂韬新材料科技有限公司 | A kind of metal-powder flaking processing equipment and its method |
| CN113171848A (en) * | 2020-09-29 | 2021-07-27 | 中国南方电网有限责任公司电网技术研究中心 | Ball milling device for stripping natural two-dimensional clay material and stripping method thereof |
| CN113171848B (en) * | 2020-09-29 | 2023-11-17 | 中国南方电网有限责任公司电网技术研究中心 | Ball milling device for stripping natural two-dimensional clay material and stripping method thereof |
| CN114308276A (en) * | 2021-12-09 | 2022-04-12 | 贵州师范大学 | Magnetic field assisted mechanical ball milling method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102166540B (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Akhtar et al. | Structural, spectral, dielectric and magnetic properties of Ni0. 5MgxZn0. 5-xFe2O4 nanosized ferrites for microwave absorption and high frequency applications | |
| CN101996723B (en) | Composite soft magnetic powder core and preparation method thereof | |
| Granados-Miralles et al. | On the potential of hard ferrite ceramics for permanent magnet technology—a review on sintering strategies | |
| Dobrzański et al. | Materials with specific magnetic properties | |
| CN103680919B (en) | A kind of preparation method of the high anti-corrosion sintered Nd-Fe-B permanent magnet of tough height of high-coercive force | |
| CN102166540B (en) | Novel ball-milling tank capable of applying magnetic field | |
| CN103187133A (en) | Rare earth permanent magnetic alloy and magnetic phase composite preparation method thereof | |
| CN108754240B (en) | Magnetic aluminum-based composite material and preparation method thereof | |
| CN101323917B (en) | Method for preparing nanocrystalline block iron-base alloy material by four-field coupling sintering | |
| CN101786163B (en) | Preparation method of high-performance room-temperature magnetic refrigeration nano bulk material | |
| CN103559972A (en) | Preparation method for sintered Nd-Fe-B permanent-magnet material | |
| Bahhar et al. | Structural, magnetic and magnetocaloric properties of TMCeFeO4 (TM= Mn, Co) spinel ferrites powders | |
| CN103495733B (en) | The preparation method of the sintered Nd-Fe-B permanent magnetic material that the rich neodymium of a kind of crystal boundary is replaced mutually | |
| Li et al. | High frequency application of ultrafine submicron FeBP amorphous soft magnetic composites | |
| Asif et al. | Exploring the structural and magnetic trends in Ba0. 9Sm0. 1Fe12− xAlxO19 M-type hexaferrites | |
| CN100461308C (en) | Ultra-high coercive force sintered Nd-Fe-B magnetic material and preparing process thereof | |
| Deng et al. | Isotropic and anisotropic nanocrystalline NdFeB bulk magnets prepared by binder-free high-velocity compaction technique | |
| CN104959618B (en) | Core-shell structure NdFeB magnetic powder high in electrical resistivity and magnetic performance and application | |
| Yuping et al. | Enhanced coercivity of La–Co substituted Sr–Ca hexaferrite fabricated by improved ceramics process | |
| CN104576026B (en) | Method for manufacturing high-coercivity neodymium-iron-boron magnets | |
| CN105280319A (en) | Rare earth iron boron material prepared from industrial pure mixed rare earth, and preparation method and application of rare earth iron boron material | |
| CN109722005B (en) | Two-dimensional magnetic moment soft magnetic composite material with high working frequency band and preparation method thereof | |
| HUANG et al. | Low temperature sintering behavior of La-Co substituted M-type strontium hexaferrites for use in microwave LTCC technology | |
| Liu et al. | Isotropic and anisotropic nanocrystalline NdFeB-based magnets prepared by spark plasma sintering and hot deformation | |
| Amato et al. | Life Cycle Assessment of Rare Earth Elements-Free Permanent Magnet Alternatives: Sintered Ferrite and Mn–Al–C |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20171217 |