CN107081429A - A kind of electric field-assisted ball grinding method - Google Patents
A kind of electric field-assisted ball grinding method Download PDFInfo
- Publication number
- CN107081429A CN107081429A CN201710330729.9A CN201710330729A CN107081429A CN 107081429 A CN107081429 A CN 107081429A CN 201710330729 A CN201710330729 A CN 201710330729A CN 107081429 A CN107081429 A CN 107081429A
- Authority
- CN
- China
- Prior art keywords
- ball
- ball grinder
- voltage
- electric field
- 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
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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The present invention discloses a kind of electric field-assisted ball grinding method, comprises the following steps, 1）Electrode bar is sealingly mounted to the middle part of the cover plate of ball grinder, and the ball grinder and electrode bar are connected with the two poles of the earth of high voltage power supply respectively；2）Abrading-ball and pending powder are put into ball grinder, the cover plate of ball grinder is installed；3）On the shake table that ball grinder is fixedly mounted on to adherent ball mill device, closed ball grinder is evacuated to less than 1 × 10 by vavuum pump‑7Pa；4）High-voltage DC power supply or high-voltage ac power, regulation power supply parameter are connected, makes to form high-voltage dc or high-voltage alternating electric field in ball grinder body, while starting motor drives exciting block, abrading-ball is done adherent motion in ball grinder, so as to realize electric field-assisted ball milling.The present invention has been internally formed highfield in ball grinder, so that sample powder obtains additional polarizing energy, promote the formation of microdefect and promote the migration of charged defects, the mechanical energy produced with the adherent ball milling of abrading-ball is effectively combined, the chemical reaction between powder is accelerated, grinding efficiency is substantially increased.
Description
Technical field
The invention belongs to powder processing technology field, and in particular to a kind of electric field-assisted ball grinding method.
Background technology
The method that high-energy ball milling prepares alloy powder is that current superfine powder is prepared and the most frequently used technology of mechanical alloying
One of, it is typically to be rotated or vibrated using high energy ball mill that metal or alloy powder is ground into ultrafine dust, will be two kinds
Or two or more powder are put into the ball grinder of high energy ball mill and carry out high-energy ball milling simultaneously, powder particle is through calendering, pressing, stone roller
Repetitive process that is broken, pressing again, can be such that powder grain and particle size constantly refines, and can finally obtain tissue and composition point
The uniform superfine alloy powder of cloth.Because this method is powder is reached alloying using mechanical energy, rather than with heat energy or
Electric energy, so the method that high-energy ball milling prepares alloy powder also turns into mechanical alloying.At present, high-energy ball-milling process is ground in material
The application for studying carefully field is increasingly extensive, and simple metal nanometer powder, nanocrystalline intermetallics, nanometer can be prepared using high energy ball mill
Composite, nano ceramic material etc., are a kind of approach prepared by new material.
As a kind of solid-state processing techniques, high-energy ball-milling process shows certain mandatory and non-equilibrium property, its essence
Upper is exactly the process forced an energy of the powder that is processed.In existing high energy ball mill, oscillatory type ball mill is current
Using one of more ball mill, its grinding processing capacity is big, but vibrator is generally only merely by rotation or vibrating ball
Grinding jar, powder is handled using the mechanical energy of abrading-ball in ball grinder, and this largely influences processing efficiency, thus caused
Ball milling utensil is seriously polluted to product powder.
The content of the invention
The present invention is directed to technical problem present in above-mentioned background technology there is provided a kind of electric field-assisted ball grinding method, including
Following steps：
1）Electrode bar is sealingly mounted to the middle part of the cover plate of ball grinder, and the ball grinder and electrode bar respectively with high straightening
Flow the two poles of the earth connection of power supply or high-voltage ac power；
2）Abrading-ball and pending powder are put into ball grinder, the cover plate of ball grinder is installed；
3）On the shake table that ball grinder is fixedly mounted on to adherent ball mill device, closed ball grinder is evacuated to by vavuum pump low
In 1 × 10-7Pa, makes to reach vacuum state in ball grinder；
4）High-voltage DC power supply or high-voltage ac power, regulation power supply parameter are connected, makes to form high voltage direct current in ball grinder body
Field or high-voltage alternating electric field, while starting motor drives exciting block, make abrading-ball do adherent motion in ball grinder, so as to realize electricity
Field auxiliary ball milling.
The present invention operation principle be：By will be vacuumized in ball grinder, make to reach high vacuum state in ball grinder,
The two poles of the earth of ball milling tank body and electrode bar respectively with HVDC or high-voltage ac power are connected, and ball grinder is internally formed forceful electric power
；The polarization energy that provides different from mechanical energy of the forceful electric power field energy to sample powder instantaneity, improves the macroscopical energy state of sample；
Electronic state can be promoted to change so that electro transfer is more prone to, promote chemical reaction to be more easy to generation；Defect can be promoted
Formed and migrated, the activation for promoting mi-crochemistry to react can reduce and be easier to occur；Especially for easy polarization material, electricity
Influence become apparent, easy polarization material sample powder be more prone under electric field-assisted processing.
In addition, the present invention also provides following attached technical scheme：
Further, the tank body of the ball grinder includes the inner tank body and Metal Substrate material outer tank body of ceramic base material, inner tank body
With outer tank body interference fits；The material of the abrading-ball is ceramic based material.Ceramic based material such as zirconium oxide, boron nitride, oxidation
Aluminium, silicon nitride etc., are not sticked together with Metal Substrate sample powder substantially using the tank body and abrading-ball of ceramic material, and ceramic material
Expect that hardness height, wearability are good, make sample easily levigate.
Further, the thickness of the inner tank body is more than 10mm.The inner tank body of ceramic material is avoided to be punctured by high voltage electric field
And occur short circuit.
Further, the material of the cover plate is insulating materials, such as polytetrafluoroethylene (PTFE), nylon, epoxy resin, phenolic aldehyde tree
Fat or ceramic material etc..
Further, the voltage of the high-voltage DC power supply is 10-80kV；The voltage of the high-voltage ac power is 10-
80kV, frequency is 1-30kHz.
Further, the electrode bar is located at the surface of the part inside ball grinder provided with tip projection.So so as to electricity
Pole rod is easier stored charge so that the electric-field intensity formed under same voltage condition is greatly improved.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention has been internally formed highfield in ball grinder, and sample powder is induced or polarized in highfield, equivalent to
The polarization energy provided different from mechanical energy to sample powder instantaneity so that sample is in the high activity shape of higher energy
State so that following process process is easier to occur, and substantially increases grinding efficiency；
2nd, the highfield that the present invention is formed in ball grinder, also causes sample to produce electronic polarization so that electronics is in bit-type space
Distribution with energy space changes, and because electronic factor is to be in leading position in chemical reaction, therefore is lured in electric field
Lead lower electro transfer to be easier, chemical reaction is easier to make for；
3rd, the highfield that the present invention is formed can also produce microcosmic shadow in addition to the influence of macroscopic view is produced to specimen material
Ring, such as cause the formation of charged defects to reduce i.e. defect and be more readily formed, charged defects because by electric field force thus be easier production
Raw migration etc.；Because the formation and migration of defect are very important to microreaction process, electric field promotes some to form hardly possible
Defect is formed, it is possible to is promoted the microreaction process that can not be carried out under some normal conditions to be carried out, can also be added
Fast some microreaction processes；
4th, the present invention uses electric field-assisted ball milling, and electric field is except being very quick to the influence that sample is produced, it may be said that
It is instantaneity；Its other penetration depth is larger, can be also larger to the coverage of material；Especially to easy polarization material
Speech, influence of the influence than modes such as plasma asistance ball millings of electric field will become apparent from, and be very beneficial for the ball milling of easy polarization material
Processing；
5th, present invention employs the method for the adherent ball milling of abrading-ball, it is to avoid the collision of abrading-ball and electric shock baton and damage electric shock baton, drop
Low consumptive material, while the abrading-ball under this adherent ball milling method is to be rolled across or slipped over larger pressure or skid crosses sample, it is right
Than traditional vibratory milling mode, sample is more prone to refinement；
6th, the present invention compares for plasma asistance ball milling, it is not necessary to increase dielectric gas, reduces pure because of dielectric gas
Interference of the degree factor to sample powder ball milling, reduces unnecessary pollution；
7th, electric field-assisted ball grinding method of the invention, is equally applicable to the feelings for the general ball grinder that ball milling tank body is metal material
Shape.
Brief description of the drawings
Fig. 1 is the structural representation for realizing the electric field-assisted ball mill device of the present invention；
Fig. 2 is the structural representation of ball grinder shown in Fig. 1；
Fig. 3 is the abrading-ball movement locus figure of the present invention；
Parts title and sequence number in figure：
Motor 1, shake table 2, ball grinder 3, pedestal 4, vibrator 5, driving snake 6, upper guide post 7, lower guide pillar 8, stage clip 9, groove
10, fixture 11, electrode bar 12, PU ventilation pipes 13, vacuum valve 14, power supply 15, abrading-ball 16, tip projection 17；
Inner tank body 301, outer tank body 302, cover plate 303.
Embodiment
The present invention is described below in conjunction with drawings and examples, following examples are explained with invention optimal effectiveness,
But the limitation of these embodiments and non-invention.
Embodiment 1：
As shown in Figure 1-2, the electric field-assisted ball mill device of the present invention, including motor 1, shake table 2, ball grinder 3 and pedestal are realized
4, the middle part of shake table 2 is provided with vibrator 5, sets driving snake 6 to connect between the output shaft of motor 1 and the rotary shaft of vibrator 5
Connect, the output shaft of motor 1 and the center line horizontal alignment of the rotary shaft of vibrator 5；Shake table 2 bottom four angle, which is equipped with, leads
Post 7, the upside correspondence position of pedestal 4 is provided with lower guide pillar 8, and provided with cylindrical stage clip 9 between upper guide post 7 and lower guide pillar 8, stage clip 9 is straight
Female connector is easy to change corresponding supporting stage clip 9 when changing ball grinder in upper guide post 7 and lower guide pillar 8；Distinguish the both sides of shake table 2
Provided with symmetrical circular groove 10, ball grinder 3 is placed in groove 10 with horizontal, and 1 ball grinder 3 is placed per side groove 10,
The left and right horizontal of ball grinder 3 of both sides is symmetrical；Ball grinder 3 is provided with the fixture 11 of the circular arc for fastening ball grinder 3, fixture
11 are fixed by screws in the both sides of groove 10；Motor 1, which is additionally provided with, can set the speed regulator of motor speed and time.
The tank body of ball grinder 3 is cylindric double-decker, and inner tank body 301 is made of ceramic base material, such as aluminum oxide,
Zirconium oxide or silicon nitride etc., the thickness of inner tank body 301 are more than 10mm, and outer tank body 302 is made of Metal Substrate material, such as hard
Alloy, stainless steel etc., inner tank body 301 and the interference fits of outer tank body 302；Abrading-ball 16 is made of ceramic base material；Ball grinder 3
Cover plate 303, which is adopted, to be made from an insulative material, and the lateral surface of cover plate 303 is sealedly connected with PU ventilation pipes 13, the other end of PU ventilation pipes 13
It is connected with vacuum valve 14, vacuum valve 14 can be remotely from the place of shake table, ball is carried out by vacuum valve 14 and vavuum pump
Grinding jar is vacuumized.The surface that electrode bar 12 is located at the part inside ball grinder is raised provided with tip.
The two poles of the earth of the outer tank body 302 of electrode bar 12 and ball grinder respectively with power supply 15 are connected.Power supply 15 selects HVDC
Power supply, voltage is 10-80kV.
The step of this electric field-assisted ball grinding method, is as follows：
1）Electrode bar is sealingly mounted to the middle part of the cover plate of ball grinder, and the ball grinder and electrode bar respectively with high straightening
Flow the two poles of the earth connection of power supply；
2）Abrading-ball and pending powder are put into ball grinder, the cover plate of ball grinder is installed；
3）On the shake table that ball grinder is fixedly mounted on to adherent ball mill device, closed ball grinder is vacuumized by vavuum pump
To less than 1 × 10-7Pa；
4）High voltage direct current source current is connected, according to regulation power supply parameter, output voltage is 60kV, make to form high in ball grinder body
Straightening stream electric field, while starting motor drives exciting block, makes abrading-ball do adherent motion in ball grinder, as shown in figure 3, from
And realize electric field-assisted ball milling.
Embodiment 2：
In the present embodiment, difference from Example 1 is, ball grinder is respectively turned on the two of high-voltage DC power supply with electrode bar
Pole, regulation power supply parameter, output voltage is 70kV, and remaining operation principle is same as Example 1.
Embodiment 3：
In the present embodiment, difference from Example 1 is, ball grinder is respectively turned on the two of high-voltage DC power supply with electrode bar
Pole, regulation power supply parameter, output voltage is 50kV, and remaining operation principle is same as Example 1.
Embodiment 4：
In the present embodiment, difference from Example 1 is, power supply 15 uses high-voltage ac power；Ball grinder and electrode
Rod is respectively turned on the two poles of the earth of high-voltage ac power, regulation power supply parameter, and output voltage is 60kV, and frequency is 20 kHz, remaining work
Make principle identical with implementing 1.
Embodiment 5：
In the present embodiment, difference from Example 4 is, ball grinder is respectively turned on the two of high-voltage ac power with electrode bar
Pole, regulation power supply parameter, output voltage is 70kV, and frequency is 25 kHz, and remaining operation principle is identical with implementing 4.
Embodiment 6：
In the present embodiment, difference from Example 4 is, ball grinder is respectively turned on the two of high-voltage ac power with electrode bar
Pole, regulation power supply parameter, output voltage is 50kV, and frequency is 15 kHz, and remaining operation principle is identical with implementing 4.
Obviously, above-described embodiment is used for the purpose of clearly illustrating example of the present invention, and the not limit to implementation
It is fixed.For the those of ordinary skill in the field, it can also make on the basis of the above description other various forms of
Change changes.There is no need and unable to all embodiment party's formulas with exhaustion.And thus amplify out it is obvious
Among change or variation are still in protection scope of the present invention.
Claims (6)
1. a kind of electric field-assisted ball grinding method, it is characterised in that：Comprise the following steps,
1）Electrode bar is sealingly mounted to the middle part of the cover plate of ball grinder, and the ball grinder and electrode bar respectively with high straightening
Flow the two poles of the earth connection of power supply or high-voltage ac power；
2）Abrading-ball and pending powder are put into ball grinder, the cover plate of ball grinder is installed；
3）On the shake table that ball grinder is fixedly mounted on to adherent ball mill device, closed ball grinder is vacuumized by vavuum pump
To less than 1 × 10-7Pa；
4）High-voltage DC power supply or high-voltage ac power, regulation power supply parameter are connected, makes to form high voltage direct current in ball grinder body
Field or high-voltage alternating electric field, while starting motor drives exciting block, make abrading-ball do adherent motion in ball grinder, so as to realize electricity
Field auxiliary ball milling.
2. a kind of electric field-assisted ball grinding method according to claim 1, it is characterised in that：The tank body of the ball grinder includes
The inner tank body and Metal Substrate material outer tank body of ceramic base material, inner tank body and outer tank body interference fits；The material of the abrading-ball is
Ceramic based material.
3. a kind of electric field-assisted ball grinding method according to claim 2, it is characterised in that：The thickness of the interior ceramic tank body
More than 10mm.
4. a kind of electric field-assisted ball grinding method according to claim 1, it is characterised in that：The material of the cover plate is insulation
Material.
5. a kind of electric field-assisted ball grinding method according to claim 1, it is characterised in that：The electricity of the high-voltage DC power supply
Press as 10-80kV；The voltage of the high-voltage ac power is 10-80kV, and frequency is 1-30kHz.
6. a kind of electric field-assisted ball grinding method according to claim 1, it is characterised in that：The electrode bar is located at ball grinder
The surface of internal part is raised provided with tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330729.9A CN107081429B (en) | 2017-05-11 | 2017-05-11 | A kind of electric field-assisted ball grinding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330729.9A CN107081429B (en) | 2017-05-11 | 2017-05-11 | A kind of electric field-assisted ball grinding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107081429A true CN107081429A (en) | 2017-08-22 |
| CN107081429B CN107081429B (en) | 2019-02-05 |
Family
ID=59611894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710330729.9A Expired - Fee Related CN107081429B (en) | 2017-05-11 | 2017-05-11 | A kind of electric field-assisted ball grinding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107081429B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592892A (en) * | 2020-04-28 | 2020-08-28 | 山东科技大学 | Method for preparing high-performance PAL material by using non-metallic mineral palygorskite |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718282A (en) * | 2005-07-29 | 2006-01-11 | 华南理工大学 | High energy ball mill method with plasma aid |
| CN2780327Y (en) * | 2005-04-07 | 2006-05-17 | 华南理工大学 | Corona plasma auxiliary high energy ball mill |
| CN101181752A (en) * | 2007-12-14 | 2008-05-21 | 华南理工大学 | Method for preparing WC-Co series nano composite hard alloy powder |
| CN103191683A (en) * | 2013-03-01 | 2013-07-10 | 北京理工大学 | Device of preparing nano powder material through electrical explosion |
| CN104549658A (en) * | 2014-12-24 | 2015-04-29 | 华南理工大学 | Application method of cold field plasma discharge assisted high energy ball milled powder and plasma assisted high energy ball milling device |
| CN105505478A (en) * | 2015-11-30 | 2016-04-20 | 中国科学院广州能源研究所 | Device and method for purifying crude fuel gas through electrical cyclone streamer corona biomass gasification |
| CN205797364U (en) * | 2016-07-21 | 2016-12-14 | 集美大学 | A kind of plasma auxiliary high-energy ball mill device for preparing lube oil additive |
-
2017
- 2017-05-11 CN CN201710330729.9A patent/CN107081429B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2780327Y (en) * | 2005-04-07 | 2006-05-17 | 华南理工大学 | Corona plasma auxiliary high energy ball mill |
| CN1718282A (en) * | 2005-07-29 | 2006-01-11 | 华南理工大学 | High energy ball mill method with plasma aid |
| CN101181752A (en) * | 2007-12-14 | 2008-05-21 | 华南理工大学 | Method for preparing WC-Co series nano composite hard alloy powder |
| CN103191683A (en) * | 2013-03-01 | 2013-07-10 | 北京理工大学 | Device of preparing nano powder material through electrical explosion |
| CN104549658A (en) * | 2014-12-24 | 2015-04-29 | 华南理工大学 | Application method of cold field plasma discharge assisted high energy ball milled powder and plasma assisted high energy ball milling device |
| CN105505478A (en) * | 2015-11-30 | 2016-04-20 | 中国科学院广州能源研究所 | Device and method for purifying crude fuel gas through electrical cyclone streamer corona biomass gasification |
| CN205797364U (en) * | 2016-07-21 | 2016-12-14 | 集美大学 | A kind of plasma auxiliary high-energy ball mill device for preparing lube oil additive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592892A (en) * | 2020-04-28 | 2020-08-28 | 山东科技大学 | Method for preparing high-performance PAL material by using non-metallic mineral palygorskite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107081429B (en) | 2019-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104549658B (en) | Cold field plasma discharge assisted high energy ball milled powder device | |
| CN104521322B (en) | For controlling the system and method in edge plasma region | |
| CN1286349C (en) | Plasma processing device and plasma processing method | |
| CN100333835C (en) | High energy ball mill method with plasma aid | |
| JP6348233B2 (en) | Application method and apparatus of cold plasma discharge support in high energy ball-crushing of powder | |
| WO2003054911A3 (en) | Plasma process apparatus | |
| CN103789716B (en) | A kind of atmosphere cold plasma jet is to the method for metal surface properties modification | |
| CN204221152U (en) | A kind of rotary ultrasonic electrolysis combined machining spindle head | |
| CN105034180B (en) | The fine cutter sweep of micro-arc discharge of SiC single crystal sheet and cutting method | |
| CN110000622A (en) | A kind of device and method of chemistry magnetic-granular composite milling pipe internal surface | |
| JP6785463B2 (en) | Method for producing graphene oxide, graphene oxide dispersion and graphene oxide | |
| EP1449605A4 (en) | Method and apparatus for the production of metal powder | |
| CN110289200A (en) | Liner Components and processing chamber | |
| JP2012040520A (en) | Fine particle generator and method for forming fine particle | |
| CN106501555A (en) | A kind of preparation facilitiess of ultralow roughness tungsten tipped probe and method | |
| CN104108053B (en) | Large complicated metal surface plasma body and pulsed discharge composite polishing processing method | |
| CN107081429A (en) | A kind of electric field-assisted ball grinding method | |
| CN110193417A (en) | It is a kind of to utilize high electric field pulse device to the pretreated method of tourmaline electric pulse | |
| CN108355834A (en) | A kind of neodymium iron boron waste material recycling cleaning screening plant | |
| CN208014650U (en) | RF power fed-in mechanism, rotating basis device and semiconductor processing equipment | |
| CN110215983A (en) | A method of promote tourmaline to activate using high electric field pulse | |
| CN100408152C (en) | Production and producer for nanometer carbon liquid | |
| CN106216807A (en) | Liquid modular appliance is rushed inside and outside short electric arc NC milling machine | |
| CN206716098U (en) | A kind of double-dielectric barrier discharge plasmaassisted ball mill device | |
| CN210997815U (en) | Device for ultrasonic electrochemical mechanical polishing of sapphire substrate material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |