CN107498060A - Preparation facilities and preparation method of a kind of low bulk than metal dust - Google Patents
Preparation facilities and preparation method of a kind of low bulk than metal dust Download PDFInfo
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- CN107498060A CN107498060A CN201710930554.5A CN201710930554A CN107498060A CN 107498060 A CN107498060 A CN 107498060A CN 201710930554 A CN201710930554 A CN 201710930554A CN 107498060 A CN107498060 A CN 107498060A
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- 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
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
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Abstract
The present invention relates to a kind of low bulk preparation facilities more direct than the centrifugal atomizing of metal dust and preparation method, described device includes melt feedway, catheter, centrifugal atomizing system and powder collection device；Cone tank or cylindricality bucket cooler are provided with the centrifugal atomizing system on rotating disk periphery；The metal bath being transported in rotating disk is atomized into the metal droplet of certain particle size under the influence of centrifugal force, and is impinged upon before solidification on cooler；The cooler surface can carry out cone angle adjustment and size adjustment through special frosting treatment by adjusting valve, and by the gentle film producing device of vibrating device powder particle can be promoted to come off；So that the advantages that metal dust after atomization has low bulk ratio, aspherical, oxygen content is low, and free from admixture pollutes.Have that preparation flow is short, powder purity is high, low cost and other advantages using the preparation method of the device, suitable for continuous, scale industrial production low bulk compare powder.
Description
Technical field
The invention belongs to metal dust preparing technical field, more particularly to a kind of low bulk is than metal dust centrifugal atomizing system
Standby device and preparation method.
Background technology
Low bulk is led than metal dust in powder metallurgy, metallic paint, catalyst material, magnetic material and electronic material etc.
Domain has wide purposes, available for preparing foam metal and porous material, powder metallurgy adhesive material, anticorrosive paint, screen
Cover coating, soft magnet powder, diamond catalyst powder, electric slurry etc..Low bulk has that apparent density is low, compares surface than Al alloy powder
The characteristics of product is big, thus when preparing foam metal and porous material, space is uniform, uniformity is good；Low bulk than copper powder, aluminium
Powder, silver powder etc., there is the effect of good anti-settling during coating and electric slurry is prepared, during its spraying and printing
Uniformity consistency is good；Low bulk than Fe base catalyst powder be easier to mix with graphite powder, thus be easier catalysis diamond
Production；Using low bulk than iron based soft magnetic powder prepared by powder core high frequency eddy current losses it is less.
Low bulk can be summarized as following a few classes than the preparation method of metal dust both at home and abroad at present：
1st, ball-milling method.Use a variety of elemental metals powder mechanical alloyings, or by previously prepared alloy thin band or mist
Change powder and carry out ball milling processing, aspherical flaky metal powder is prepared into, as patent 03805844.8 is (entitled《Sheet
Copper powder and preparation method thereof and the conductive paste using the flake copper》) disclose it is a kind of use medium ball, pass through high energy ball
Grinding machine is compressed, and makes copper powder particle that plastic deformation occur and be allowed to flaking；Patent 03135633.8 is (entitled《One
The manufacture method of kind flaky metal powder》) disclose it is a kind of by water cooling temperature control, be passed through inert gas shielding and regulation is ground
The method that mill speed is segmented dry ball milling；And application number 03124444.0 is (entitled《Sheet zinc and zinc aluminium alloy powder are wet
Method production technology》) patent disclose one kind using metal powder as raw material, add abrasive media and surface conditioning agent, carry out wet method
The method of ball milling.Patent CN1736636A is (entitled《A kind of preparation method of low loose density sheet-like silver powder》) disclose production
Process includes sorting → ball milling → one-time surface modification → drying and secondary surface is modified five parts.Ball-milling method prepares sheet metal
Powder is more the most commonly used than metal dust manufacturing field in low bulk.But mechanical milling process easily causes powder and polluted in itself, and process
It is more, the production cycle is longer.
2nd, electronation or electrolysis.Patent 98813492.6 (《Low density high surface area copper powders and prepare this copper powder
The electro-deposition method at end》), 200310114035.X it is (entitled《The chemical preparation process of ultrafine flake copper powder》), patent
CN201310034878.2 is (entitled《A kind of preparation method of flake silver powder》), 200710065910.8 (denominations of invention
For《A kind of preparation method of microporous sheet type silver powder》) etc., it is powered or leads in the solution using metal salt corresponding to prepared powder
Crossing addition reducing agent makes cation obtain electronics so as to deposit to obtain corresponding powder.The most important feature of the method is that powder is in
" wet " state, thus need to separate, wash, be dried in vacuo or reduce the process such as dry, and because pulverizing process is carried out in the solution,
Easy generation environment pollution.
3rd, melt atomization method.In recent years there is melt atomization and prepare low pine than metal dust technique.Such as water, aerosol chemical industry
Skill, the method preparation method is simple, and flow is short, but powder pine ratio is still not ideal, the powder prepared especially with centrifugal atomization
End, good sphericity, apparent density are high, to reduce apparent density of powder, it is necessary to subsequently carry out prolonging pressure or sintering crushing to powder.Specially
Profit 200510011622.5 is (entitled《A kind of method and apparatus of preparing sheet-type metal pwoder by atomized drop deformation》) public
The method and apparatus of preparing sheet-type metal pwoder by atomized drop deformation, but wherein described atomized drop and atomization tank skin collision are opened
When deforming in blocks, because the upward tangential force of back taper acts on, molten drop is easy to stick together with tank skin and make pulverizing process
Can not be continuous, it is not suitable for industrialized production；Patent 200910085792.6 is (entitled《A kind of system of flaky metal powder
Preparation Method》) announce method be that atomized drop is splashed on the water cooled rolls of rotation, be easy to improve cooling rate prepare non-crystalline material,
But because easily there is secondary-atomizing and drop and powder particle fusion phenomenon on water cooled rolls in drop, cause powder product rate compared with
It is low, and can not thoroughly solve the adhesion in continuous atomization process, easily the problems such as jet deposition causes water cooled rolls unbalance occur, this
Outside, because water-cooled copper roll shaft is also difficult to control to fixation, powder morphology.
It can be seen that than metal powder preparation method, either process is long, cost is high or easily produces dirty for existing low bulk
Dye, product quality are relatively low.
The content of the invention
To solve the above problems, the present invention, which provides an object of the present invention, is to provide a kind of low bulk than metal dust
The direct preparation facilities of centrifugal atomizing；Another object of the present invention is to provide centrifugal atomizing method of the above-mentioned low bulk than powder.
An object of the present invention is to be achieved through the following technical solutions：
A kind of low bulk preparation facilities more direct than the centrifugal atomizing of metal dust, described device include melt feedway,
Catheter, centrifugal atomizing system and powder collection device, the melt feedway pass through catheter and the centrifugal atomizing system
System is connected, and the bottom of the centrifugal atomizing system is provided with powder collection device；The centrifugal atomizing system includes nebulization chamber,
The rotating disk with drive device is provided with the middle part of the nebulization chamber, is the catheter above the rotating disk；Rotating
Disk periphery is provided with cone tank or cylindricality bucket cooler；The cone tank or cylindricality bucket cooler outer wall are provided with vibrator, gas
Film generator and adjusting apparatus, the adjusting apparatus are used to adjusting the taper bus angle of cone tank or cylindricality bucket cooler and cold
But the distance between wall and rotating disk；The centrifugal atomizing system also has the vacuum being connected with its nebulization chamber and indifferent gas
Body connecting line.
Further, the melt feedway is crucible.
Further, the melt feedway is melt conveying pipeline and melt temperature-control pressure-control tundish.
Further, the powder collection device includes the pipeline being connected with centrifugal atomizing system bottom, with the pipeline one
The connected receipts powder tank of individual branch, the cyclone separator being connected with another branch of the pipeline, and with the cyclone separator
Connected vibrating screen classifier；Valve is respectively arranged with the Liang Ge branches of the pipeline.
Further, the material of the cone tank or cylindricality bucket cooler is at copper, stainless steel or surface ceramic deposition plated film
One kind in the copper material of reason.
Further, the micron order mastoid process knot that the cone tank or cylindricality bucket cooler surface are formed for frosting treatment after polishing
Structure, roughness are R a1.5-R a10.
Further, the air film generator is equal for the angle of gas flow size, airflow direction and powder cooler inwall
The circumferential weld shaped pulse formula or continous way generator that can be adjusted.
Further, the vibrator is one kind in mechanical vibrator or power ultrasonic vibrator with dust cover.
Further, the adjusting apparatus is adjustment valve, and the adjustment valve can stretch to adjust cooler wall and rotating disk
The distance between, meanwhile, the adjustment valve can be rotated with 360 ° to adjust the taper bus clip of cone tank or cylindricality bucket cooler
Angle.
Further, the cooler uses liquid cold or is gas-cooled.
Further, a diameter of 10-100mm of the rotating disk.
Further, the vertical range of the rotation plate edge and cone tank or cylindricality bucket cooler inwall is 150-500mm；
0 ° -150 ° of the taper bus angle of the cone tank or cylindricality bucket cooler.
The second object of the present invention is achieved through the following technical solutions.
A kind of low bulk preparation method more direct than the centrifugal atomizing of metal dust, the preparation method comprise the following steps：
S1：There is provided one has the metal bath of certain degree of superheat；
S2：Rotating disk material and diameter are selected, adjusts cone tank or cylindricality bucket cooler inwall with rotating hanging down for plate edge
Straight distance and the angle of cone tank or cylindricality bucket cooler bus；
S3：Nebulization chamber is vacuumized, is filled with inert gas, and control oxygen content；
S4：The metal bath is delivered in the rotating disk with certain flow by mozzle；And adjust rotating disk
Rotating speed makes metal bath be atomized into drop, and high-speed impact is on cone tank or cylindricality bucket cooler；
S5：Adjust the pulse frequency of vibrator and the gas flow and airflow direction and powder of power and air film generator
The angle of cooler inwall so that shed powder to nebulization chamber bottom；
S6：The powder is collected by powder collection device.
Further, the metal is any one in tin (Sn), silver (Ag), copper (Cu), aluminium (Al) and iron (Fe)；
Or alloy is any one in Cu-Sn, Al-Si, Ag-Cu, Fe-Ni and Fe-Cu alloy.
Further, the melt superheat degree is 50-300 DEG C；
Further, the inert gas that is filled with is nitrogen or argon gas, and the oxygen content is 50-1000ppm；
Further, the flow is 20-70kg/h；
Further, the rotating is 20000-100000r/min；
Further, the preparation method is Discontinuous manufacture；The metal bath is provided using crucible, and using receipts powder tank
Collect powder；
Further, the preparation method is continuous production；Carried using melt conveying pipeline and melt temperature-control pressure-control tundish
For the metal bath, and cyclone separator is used, and collect powder with vibrating screen classifier that the cyclone separator is connected
End.
Cone tank or cylindricality bucket cooler surface of the invention is polished and frosting treatment, texturing mode are not limited to shot-peening
Method, electric machining method or laser method, the type of cooling can be the liquid such as water cooling, oil cooling it is cold or air cooling in one kind.On the cooler
The aspherical degree of powder on the one hand can be lifted with texturing micro-structural, air film on the other hand can be formed and suppress adhesion, simultaneously
Cause shed powder by the vibration and impact of vibrator；Finally collect and obtain aspherical low bulk than metal or alloy powder
End.
The above-mentioned collected aspherical low bulk of the present invention can be directly entered than metal dust receives powder tank, can also enter online
Enter selection by winnowing and screening system obtains the metal dust of certain particle size scope.
For serialization large-scale production, the melt of metal or alloy raw material can be conveyed to obtain, now by external pipe
Melt temperature-control pressure-control tundish has the double action of temperature control and pressure control, and be atomized gained powder direct-on-line enter selection by winnowing and
Screening system chooses certain particle size range.
Beneficial effect：Using technical method of the present invention be directly be atomized using centrifugal atomizing technology prepare it is aspherical
Metal dust, prepared metal dust has low bulk ratio, aspherical, oxygen content is low, the advantages such as impurity content is low.The present invention
For low bulk than the centrifugal atomizing method of powder, a whole set of environment is closed and can realize integrated continuous production, without environmental pollution and
The powder self-pollution that secondary operation is brought, production procedure is short, cost is low.Powder cooler in apparatus of the present invention has uniqueness
The gentle film producing device of surface micro-structure, and attach vibration impact device, can effectively avoid powder adhesion in atomization process,
Promotion comes off, suitable continuous and automatic large-scale production；Powder cooler surface has microscopic protrusions structure, and cone angle and bucket footpath
Thickness is adjustable, is easy to the control of powder morphology and the reduction of loose ratio.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is low bulk of the present invention preparation facilities schematic diagram more direct than the centrifugal atomizing of metal dust；
Wherein, 1 be crucible or melt temperature-control pressure-control hold bag, 2 be mozzle, 3 be centrifugal atomizing system rotating disk, 4 be
Adjustment valve, 5 be vibrator, 6 be air film generator, 7 be cone tank or cylindricality bucket cooler, 8 be nebulization chamber, 9 be receipts powder tank,
10 it is cyclone separator, 11 is vibrating screen classifier.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although this public affairs is shown in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely, there is provided these embodiments are to be able to be best understood from the disclosure, and can be by this public affairs
The scope opened completely is communicated to those skilled in the art.
According to the embodiment of the present invention, a kind of low bulk preparation facilities more direct than the centrifugal atomizing of metal dust is proposed,
Described device includes melt feedway 1 (actual crucible or melt temperature-control pressure-control hold bag), catheter 2, centrifugal atomizing system
And powder collection device, the melt feedway are connected by catheter with the centrifugal atomizing system, the centrifugal atomizing
The bottom of system is provided with powder collection device；The centrifugal atomizing system includes nebulization chamber 8, in the nebulization chamber 8
Portion is provided with the rotating disk 3 with drive device, a diameter of 10-100mm of the rotating disk.The top of rotating disk 3 is described
Catheter 2；Cone tank or cylindricality bucket cooler 7 are provided with the periphery of rotating disk 3；The material of the cone tank or cylindricality bucket cooler
Matter is one kind in copper, stainless steel or the copper material of surface ceramic deposition coating film treatment.The cone tank or the cooling of cylindricality bucket
The micron order mastoid process structure that device surface is formed for frosting treatment after polishing, roughness is R a1.5-R a10.In the cooler
Liquid it is cold or air cooling circulating cooling, liquid is cold to use water cooling or oil cooling.The cone tank or the outer wall of cylindricality bucket cooler 7, which are provided with, to shake
Dynamic device 5, air film generator 6 and adjusting apparatus.The vibrator is the mechanical vibrator with dust cover or power ultrasonic vibration
One kind in device.The air film generator can for the angle of gas flow size, airflow direction and powder cooler inwall
The circumferential weld shaped pulse formula or continous way generator of regulation.The adjusting apparatus is used to adjust cone tank or cylindricality bucket cooler 7
Taper bus angle and the distance between cooler wall and rotating disk；The adjusting apparatus is specially to adjust valve 4, the adjustment
Valve can stretch to adjust the distance between cooler wall and rotating disk 3, meanwhile, the adjustment valve can be rotated with 360 ° to adjust
The taper bus angle of cone tank or cylindricality bucket cooler 7；The rotation plate edge and cone tank or cylindricality bucket cooler inwall
Vertical range be 150-500mm；0 ° -150 ° of the taper bus angle of the cone tank or cylindricality bucket cooler.The centrifugation
Atomization system also has the vacuum being connected with its nebulization chamber and inert gas connecting line.The powder collection device include with
The pipeline of centrifugal atomizing system bottom connection, the receipts powder tank 9 being connected with described one branch of pipeline, with described another point of pipeline
Zhi Xianglian cyclone separator 10, and the vibrating screen classifier 11 being connected with the cyclone separator；Two points of the pipeline
Valve is respectively arranged with branch.
Embodiment 1
Pure tin 100kg is taken to add in crucible 1；The rotating disk of centrifugal atomizing system 3 is selected as diameter 20mm stainless steel disc；
Control adjustment valve 4, make the cone angle of powder cooler 7 for 75 ° (i.e.：150 ° of cone tank bus angle), cone tank bucket wall with rotation
Plate edge vertical range is 150mm；Vacuum nitrogen gas is carried out to nebulization chamber 8, spray chamber oxygen content is reduced to 150ppm.
When pure tin is heated to 400 DEG C, tin liquor is delivered to by centrifugal atomizing system 3 with 50kg/h uniform flow by mozzle 2
In rotating disk, adjustment rotating speed is to 80,000 r/min, and tin liquor is atomized into droplet under the influence of centrifugal force and high-speed impact is followed to having
On the powder of stainless steel cooler 7 of ring water cooling, the pulse frequency and the nitrogen of power and air film generator 6 of vibrator 5 are adjusted
Gas throughput, and the uniformity of shed powder is observed, powder is collected directly from and received in powder tank 9, that is, obtains oblong, surface
Coarse sheet low bulk is than pure tin powder.
Embodiment 2：
Fine aluminium 50kg is taken to add in crucible 1；Select titanium alloy atomizing disk of the centrifugal atomizing system 3 for diameter 40mm；Control
Valve 4 is adjusted, the cone tank cone angle for making powder cooler 7 is 0 ° (i.e. cylindricality bucket), bucket wall and rotating disk edge-perpendicular distance are
500mm；Nebulization chamber 8 is carried out to vacuumize applying argon gas, spray chamber oxygen content is reduced to 50ppm.When fine aluminium is heated to 850 DEG C
When, aluminium liquid is delivered to the titanium alloy atomizing disk of centrifugal atomizing system 3 by ceramic mozzle 2 with 30kg/h uniform flow
On, adjustment rotating speed to 60,000 r/min, aluminium liquid is atomized into droplet under the influence of centrifugal force and high-speed impact is to liquid nitrogen cooling
Powder cooler 7 on, adjust the frequency of impact and the argon stream amount of power and air film generator 6 of vibrator 5, and observe
The uniformity that aluminium powder comes off, powder is sieved into cyclone separator 10 and online, vibrosieve directly along pipeline
The two layers of mesh up and down of machine 11 is respectively 180 mesh and 500 mesh, that is, obtains granularity as -180 mesh, the nearly disc-shaped aluminium powder of the purposes of ﹢ 500.
Embodiment 3：
Fine copper 50kg is taken to add in crucible 1；Select ceramic atomizing disk of the centrifugal atomizing system 3 for diameter 40mm；Control is adjusted
Whole valve 4, the cone tank cone angle for making powder cooler 7 is 0 ° (i.e. cylindricality bucket), bucket wall and rotating disk edge-perpendicular distance are
500mm；Nebulization chamber 8 is carried out to vacuumize applying argon gas, spray chamber oxygen content is reduced to 1000ppm.When fine copper is heated to
At 1300 DEG C, copper liquid is delivered to the atomizing disk of centrifugal atomizing system 3 by ceramic mozzle 2 with 50kg/h uniform flow
On, adjustment rotating speed to 80,000 r/min, copper liquid is atomized into droplet under the influence of centrifugal force and high-speed impact is to liquid nitrogen cooling
Powder cooler 7 on, adjust the frequency of impact and the argon stream amount of power and air film generator 6 of vibrator 5, and observe
The uniformity that copper powder comes off, powder is sieved into cyclone separator 10 and online, vibrosieve directly along pipeline
Machine 11 uses the mesh of monolayer net 350, and it is the nearly disc-shaped pure copper powder of -350 purposes to take minus sieve to obtain granularity.
Embodiment 4：
CuSn20 alloy pigs 150kg is taken to add in crucible 1；Select boron nitride ceramics of the centrifugal atomizing system 3 for straight 10mm
Atomizing disk；Control adjustment valve 4, the cone angle for making powder cooler 7 are 30 ° (i.e. 60 ° of cone tank bus angles), bucket wall and rotating disk
Edge-perpendicular distance is 400mm；Vacuum nitrogen gas is carried out to nebulization chamber 8, spray chamber oxygen content is reduced to 300ppm.When
When CuSn20 alloys are heated to 1000 DEG C or so, aluminium alloy is delivered to 70kg/h uniform flow by ceramic mozzle 2
On the atomizing disk of centrifugal atomizing system 3, adjustment rotating speed is to 80,000 r/min, and CuSn20 aluminium alloys are atomized under the influence of centrifugal force
Droplet is simultaneously struck on the copper powder cooler 7 that ceramic coating processing has been carried out with water cooling and top layer, and adjustment vibrator 5 is
Frequency 0.1Hz/ power 100W, nitrogen air film generator 6 are continous way, throughput 500ml/min, then will be atomized gained powder
Be collected directly from and receive in powder tank 9, that is, obtain ellipse slice shape low bulk than CuSn20 alloyed powders.
Embodiment 5：
Fine silver 20kg is taken to add in crucible 1；Select tungsten-molybdenum alloy atomizing disk of the centrifugal atomizing system 3 for diameter 100mm；Control
System adjustment valve 4, the cone angle for making powder cooler 7 are 15 ° (i.e. 30 ° of cone tank bus angles), bucket wall and rotating disk edge-perpendicular
Distance is 150mm；Nebulization chamber 8 is carried out to vacuumize applying argon gas, spray chamber oxygen content is reduced to 50ppm.When fine silver heats
During to 1100 DEG C, silvering solution is delivered to the ceramic mist of centrifugal atomizing system 3 by ceramic mozzle 2 with 20kg/h uniform flow
Change on disk, adjustment rotating speed to 5.1 ten thousand r/min, silver-colored droplet strikes oil cooled copper with heat conduction under the influence of centrifugal force
On cooler 7, adjusting the frequency of mechanical vibrators 5 and the argon stream amount of power and air film generator 6 makes powder without viscous
Company comes off, and is then collected directly from atomization gained powder and receives in powder tank 9, that is, obtains ellipse slice shape fine silver powder.
Embodiment 6：
FeNi30 alloys 100kg is taken to add in crucible 1；Select ceramic-stainless steel of the centrifugal atomizing system 3 for diameter 60mm
Composite atomizing disk；Control adjustment valve 4, the cone angle for making powder cooler 7 is 45 ° of (i.e. 90 ° of cone tank bus angle), bucket walls
It is 500mm with rotating disk edge-perpendicular distance；Vacuum nitrogen gas is carried out to nebulization chamber 8, is reduced to spray chamber oxygen content
300ppm.When the iron nickel in crucible is heated to 1200 DEG C, will be delivered to by ceramic mozzle 2 with 50kg/h uniform flow
On the atomizing disk of centrifugal atomizing system 3, adjustment rotating speed is to 20,000 r/min, and FeNi30 droplet strikes tool under the action of the centrifugal force
On the copper cooler 7 for having water cooling and the processing of top layer ceramic coating, the pulse frequency of mechanical vibrators 5 and air film generator are adjusted
6 stream of nitrogen gas amounts make powder non-binding come off to 1.0L/min, are then collected directly from atomization gained powder and receive in powder tank 9,
Obtain the FeNi30 catalyst powders of approximate ellipsoidal sheet.
Embodiment 7：
The continuous preparation of oval tin flake.Pure tin liquation is delivered in crucible 1 using external infusion system；Selection
Centrifugal atomizing system 3 is Φ 30mm 316 stainless steel rotating disks；Control adjustment valve 4, the cone angle for making powder cooler 7 are 30 °
(60 ° of bus angle for cooling down cone tank), cone tank bucket wall and rotating disk edge-perpendicular distance are 180mm；To nebulization chamber 8
Vacuum nitrogen gas is carried out, spray chamber oxygen content is reduced to 200ppm.It is 350 DEG C to control crucible temperature, will by mozzle 2
Tin liquor is delivered in the stainless steel rotating disk of centrifugal atomizing system 3 with 70kg/h uniform flow, adjusts turning for high-speed electric main shaft
Speed is to 100,000 r/min, and tin liquor is atomized into droplet under the influence of centrifugal force and high-speed impact arrives the copper being gas-cooled with compressed air
On matter powder cooler 7, the pulse frequency and power of adjustment impulse ultrasound vibrator 5, and control the air-flow side of air film generator 6
To and throughput, powder is uniformly come off, and powder is sieved into cyclone separator 10 and online directly along pipeline
Point, the two layers of mesh up and down of vibrating screen classifier 11 is respectively 350 mesh and 500 mesh, you can is continuously available granularity as -350 mesh, the mesh of ﹢ 500
Oval tin flake.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (10)
1. a kind of low bulk preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described device includes melt
Feedway, catheter, centrifugal atomizing system and powder collection device, the melt feedway by catheter with it is described from
Heart atomization system is connected, and the bottom of the centrifugal atomizing system is provided with powder collection device；The centrifugal atomizing system includes
Nebulization chamber, the rotating disk with drive device is provided with the middle part of the nebulization chamber, is the drain above the rotating disk
Pipe；Cone tank or cylindricality bucket cooler are provided with rotating disk periphery；The cone tank or cylindricality bucket cooler outer wall are provided with
Vibrator, air film generator and adjusting apparatus, the adjusting apparatus is used to adjust cone tank or the taper of cylindricality bucket cooler is female
Wire clamp angle and the distance between cooler wall and rotating disk；The centrifugal atomizing system is also true with being connected with its nebulization chamber
Empty and inert gas connecting line.
2. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
Melt feedway is crucible；The powder collection device includes the pipeline being connected with centrifugal atomizing system bottom, with the pipe
The connected receipts powder tank in road, receive powder tank upper end and pipeline junction is provided with valve.
3. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
Melt feedway is melt conveying pipeline and melt temperature-control pressure-control tundish；The powder collection device includes and centrifugal atomizing
The pipeline of system bottom connection, the cyclone separator being connected with the pipeline, and the vibration being connected with the cyclone separator
Screening machine.
4. the material of cone tank as claimed in claim 1 or cylindricality bucket cooler is copper, stainless steel or surface ceramic deposition plated film
The micron that one kind in the copper material of processing, the cone tank or cylindricality bucket cooler surface are formed for frosting treatment after polishing
Level mastoid process structure, roughness are R a1.5-R a10, and the type of cooling uses liquid cold or air cooling.
5. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
The circumferential weld shape arteries and veins that air film generator can be adjusted for the angle of gas flow size, airflow direction and powder cooler inwall
Rush formula or continous way generator.
6. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
Vibrator is one kind in mechanical vibrator or power ultrasonic vibrator with dust cover.
7. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
Adjusting apparatus is adjustment valve, and the adjustment valve can stretch to adjust the distance between cooler wall and rotating disk, meanwhile, it is described
Adjustment valve can be rotated with 360 ° to adjust the taper bus angle of cone tank or cylindricality bucket cooler.
8. low bulk as claimed in claim 1 preparation facilities more direct than the centrifugal atomizing of metal dust, it is characterised in that described
A diameter of 10-100mm of rotating disk, the vertical range of the rotation plate edge and cone tank or cylindricality bucket cooler inwall are
150-500mm；0 ° -150 ° of the taper bus angle of the cone tank or cylindricality bucket cooler.
9. a kind of preparation facilities more direct than the centrifugal atomizing of metal dust of the low bulk as described in claim any one of 1-7 prepares low
The method of apparent density metal dust, it is characterised in that methods described comprises the following steps：
S1：There is provided one has the metal bath of certain degree of superheat；
S2：Select rotating disk material and diameter, adjust cone tank or cylindricality bucket cooler inwall with rotate plate edge it is vertical away from
From and the angle of cone tank or cylindricality bucket cooler bus；
S3：Nebulization chamber is vacuumized, is filled with inert gas, and control oxygen content；
S4：The metal bath is delivered in the rotating disk with certain flow by mozzle；And adjust rotating
Metal bath is set to be atomized into drop, and high-speed impact is on cone tank or cylindricality bucket cooler；
S5：The pulse frequency of vibrator and the gas flow and airflow direction of power and air film generator is adjusted to cool down with powder
The angle of device inwall so that shed powder to nebulization chamber bottom；
S6：The powder is collected by powder collection device.
10. method as claimed in claim 9, it is characterised in that the metal is tin (Sn), silver-colored (Ag), copper (Cu), aluminium (Al)
And any one in iron (Fe)；Or alloy is any one in Cu-Sn, Al-Si, Ag-Cu, Fe-Ni and Fe-Cu alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930554.5A CN107498060B (en) | 2017-10-09 | 2017-10-09 | Preparation device and preparation method of metal powders with low apparent density ratio |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530710A (en) * | 2018-12-20 | 2019-03-29 | 西安铂力特增材技术股份有限公司 | A kind of the classification processing system and its application method of atomized metal pow der |
| CN110335698A (en) * | 2019-06-28 | 2019-10-15 | 智玻蓝新科技(武汉)有限公司 | A kind of dedicated conductive material of glass base circuit board |
| CN111230132A (en) * | 2020-04-26 | 2020-06-05 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| CN112045197A (en) * | 2020-09-15 | 2020-12-08 | 湖南天际智慧材料科技有限公司 | Rotating disc granulation equipment and production process thereof |
| CN114340817A (en) * | 2019-09-06 | 2022-04-12 | 巴斯夫欧洲公司 | Iron-based alloy powder comprising non-spherical particles |
| CN114749617A (en) * | 2020-11-25 | 2022-07-15 | 宝钢德盛不锈钢有限公司 | Production method for reducing mountain scale at edge of hot-rolled 200-series stainless steel coil |
| CN117884643A (en) * | 2024-03-11 | 2024-04-16 | 四川力泓电子科技有限公司 | Copper powder, copper powder preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02258905A (en) * | 1989-03-30 | 1990-10-19 | Mitsubishi Metal Corp | Rotating electrode type powder manufacturing apparatus |
| CN1472028A (en) * | 2002-07-30 | 2004-02-04 | 梁乃茹 | Method and apparatus for producing metal and alloy powder by quick solidifying and electromagnetically atomizing |
| CN101745763A (en) * | 2009-12-22 | 2010-06-23 | 北京有色金属研究总院 | High-efficiency preparation method of precise welded ball |
| CN102689015A (en) * | 2012-06-21 | 2012-09-26 | 北京有色金属研究总院 | Metal powder preparation device and method therefor |
| CN105499590A (en) * | 2015-12-14 | 2016-04-20 | 石京 | Preparation method and device of ceramic particle reinforced metal matrix composite powder |
| CN205414417U (en) * | 2016-03-25 | 2016-08-03 | 湖南久泰冶金科技有限公司 | Device of plasma atomizing preparation high performance powder for vibration material disk |
-
2017
- 2017-10-09 CN CN201710930554.5A patent/CN107498060B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02258905A (en) * | 1989-03-30 | 1990-10-19 | Mitsubishi Metal Corp | Rotating electrode type powder manufacturing apparatus |
| CN1472028A (en) * | 2002-07-30 | 2004-02-04 | 梁乃茹 | Method and apparatus for producing metal and alloy powder by quick solidifying and electromagnetically atomizing |
| CN101745763A (en) * | 2009-12-22 | 2010-06-23 | 北京有色金属研究总院 | High-efficiency preparation method of precise welded ball |
| CN102689015A (en) * | 2012-06-21 | 2012-09-26 | 北京有色金属研究总院 | Metal powder preparation device and method therefor |
| CN105499590A (en) * | 2015-12-14 | 2016-04-20 | 石京 | Preparation method and device of ceramic particle reinforced metal matrix composite powder |
| CN205414417U (en) * | 2016-03-25 | 2016-08-03 | 湖南久泰冶金科技有限公司 | Device of plasma atomizing preparation high performance powder for vibration material disk |
Non-Patent Citations (1)
| Title |
|---|
| 杜艳华等: "旋转盘离心雾化制备金属铝粉", 《中国核科学技术进展报告》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530710B (en) * | 2018-12-20 | 2023-09-05 | 西安铂力特增材技术股份有限公司 | Graded treatment system for atomized metal powder and application method thereof |
| CN109530710A (en) * | 2018-12-20 | 2019-03-29 | 西安铂力特增材技术股份有限公司 | A kind of the classification processing system and its application method of atomized metal pow der |
| CN110335698B (en) * | 2019-06-28 | 2020-08-28 | 智玻蓝新科技(武汉)有限公司 | Conductive material special for glass-based circuit board |
| CN110335698A (en) * | 2019-06-28 | 2019-10-15 | 智玻蓝新科技(武汉)有限公司 | A kind of dedicated conductive material of glass base circuit board |
| CN114340817A (en) * | 2019-09-06 | 2022-04-12 | 巴斯夫欧洲公司 | Iron-based alloy powder comprising non-spherical particles |
| CN115151357A (en) * | 2019-09-06 | 2022-10-04 | 巴斯夫欧洲公司 | Iron-based alloy powder comprising non-spherical particles |
| CN111230132B (en) * | 2020-04-26 | 2020-08-25 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| CN111230132A (en) * | 2020-04-26 | 2020-06-05 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| CN112045197A (en) * | 2020-09-15 | 2020-12-08 | 湖南天际智慧材料科技有限公司 | Rotating disc granulation equipment and production process thereof |
| CN114749617A (en) * | 2020-11-25 | 2022-07-15 | 宝钢德盛不锈钢有限公司 | Production method for reducing mountain scale at edge of hot-rolled 200-series stainless steel coil |
| CN114749617B (en) * | 2020-11-25 | 2024-03-01 | 宝钢德盛不锈钢有限公司 | Production method for reducing mountain scales at hot rolled edge of 200 series stainless steel |
| CN117884643A (en) * | 2024-03-11 | 2024-04-16 | 四川力泓电子科技有限公司 | Copper powder, copper powder preparation method and application thereof |
| CN117884643B (en) * | 2024-03-11 | 2024-05-17 | 四川力泓电子科技有限公司 | Copper powder, copper powder preparation method and application thereof |
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