CN106825596B - A kind of atomization preparing apparatus of nickel aluminium powder - Google Patents
A kind of atomization preparing apparatus of nickel aluminium powder Download PDFInfo
- Publication number
- CN106825596B CN106825596B CN201611263659.1A CN201611263659A CN106825596B CN 106825596 B CN106825596 B CN 106825596B CN 201611263659 A CN201611263659 A CN 201611263659A CN 106825596 B CN106825596 B CN 106825596B
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- Prior art keywords
- swirl atomizer
- chamber
- leakage fluid
- liquid storage
- melt
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Classifications
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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
Abstract
The invention discloses a kind of atomization preparing apparatus of nickel aluminium powder, including furnace body, working chamber, spray chamber and collecting chamber, working chamber's crucible bottom is connected to liquid storage packet by diversion pipe, liquid storage packet bottom connects swirl atomizer by diversion pipe, swirl atomizer is discoid, a diameter of 20cm, the outside of the swirl atomizer is symmetrically equipped with 2 leakage fluid drams, the a diameter of 2cm of leakage fluid dram, leakage fluid dram opening direction is the tangential direction of disk, pulse-pressure tracheae is equipped with above swirl atomizer, the pulse-pressure tracheae connects air source, control system controls the pressurization that air source carries out the melt in swirl atomizer pulsed, swirl atomizer surrounding is accordingly equipped with 2 inert gas nozzles, leakage fluid dram melt throws away direction when the face swirl atomizer rotation of inert gas nozzle direction；It is equipped with collecting chamber below spray chamber, cyclone separator and ultrasonic vibrating screen are equipped in collecting chamber, present invention improves crushing effect and improves the uniformity coefficient of powder.
Description
Technical field
The invention belongs to materials processing technology fields, more particularly, to a kind of atomization preparing apparatus of nickel aluminium powder.
Background technology
Intermetallic compound Ni3Al is that have unusual yield strength-temperature effect, and very high wear-resistant and resistance to
Corrosive nature has become the important feature material in the fields such as contemporary aerospace industry, civilian industry, is especially sent out in aviation
Motivation blade industry has broad application prospects.A kind of fast short-term training of 3D printing or increasing material manufacturing as rising in recent years
Type technique, using successively powdering, laser or electron beam melt molding mode, realize the finishing molding of precise part, and
And the defects of avoiding the shrinkage cavity shrinkage porosity of casting process appearance, become a kind of emerging material manufacturing process.
Powder used in 3D printing at present, generally by vacuum pouring after melting at ingot casting, subsequent secondary smelting simultaneously uses
The mode of atomization legal system powder obtains, and in current atomization method, after generally being flowed directly out using metal bath, blows to melt
Realize atomization.The more advanced technique in part is atomized after then being thrown away melt using centrifugal process, and during being thrown away using centrifugation,
Inventor it has been investigated that, what melt threw away gas in rear atomization process blows speed, angle, and the direction of liquid stream is to the effect of atomization
Have an impact with the granularity of powder after atomization, but current centrifuging process is all made of continuous centrifugal and goes out the mode blown after liquid, because
And powder particles obtained is made to be unevenly distributed.
Invention content
In order to solve the above technical problems, the present invention provides a kind of atomization preparing apparatus of nickel aluminium powder.
The complete technical solution of the present invention includes：
A kind of atomization preparing apparatus of nickel aluminium powder, the device include furnace body, working chamber, spray chamber and collecting chamber.
The working chamber is located above furnace body, including crucible, and crucible is externally provided with sensing heating body, and stove is equipped with above furnace body
Lid.
It is equipped with partition board between working chamber and spray chamber, liquid storage packet made of refractory material, institute are equipped in the spray chamber
The a diameter of 20cm of liquid storage packet is stated, is highly 50cm, liquid storage packet is wrapped with heat-preservation cotton, and induction melting crucible bottom passes through diversion pipe
It is connected to the liquid storage packet, diversion pipe is equipped with opening/closing mechanism, and liquid storage packet bottom connects swirl atomizer, institute by diversion pipe
The swirl atomizer stated is discoid, a diameter of 20cm, and the outside of the swirl atomizer is symmetrically equipped with 2 leakage fluid drams, leakage fluid dram
A diameter of 2cm, leakage fluid dram opening direction are the tangential direction of disk, and pulse-pressure tracheae, institute are equipped with above the swirl atomizer
Pulse-pressure tracheae connection air source is stated, control system controls the pressurization that air source carries out the melt in swirl atomizer pulsed, from
Heart nozzle surrounding is accordingly equipped with 2 inert gas nozzles, leakage fluid dram when inert gas nozzle direction face swirl atomizer rotates
Melt throws away direction；It is equipped with collecting chamber below spray chamber, cyclone separator and ultrasonic vibrating screen are equipped in collecting chamber.
The present invention compared with the existing technology the advantages of be：By centrifugal nozzle, alloy melt is got rid of with centrifugal
Go out, increase the speed thrown away, thus the crushing force of bigger is will produce when being contacted with atomization air flow, improves crushing effect,
Coordinate air pulse to pressurize simultaneously, makes melt at face atomization air flow direction to spray at a high speed, frontal impact atomization air flow hair
Raw collision, while air pulse being coordinated to pressurize, make melt at face atomization air flow direction to spray at a high speed, frontal impact atomization
Gas stream make impact, while the features such as according to the density of nickel alumin(i)um alloy, speed of melting, liquid supply speed, centrifugal rotational speed, for its into
The optimization design of liquid storage packet and atomizer size is gone, relative to titanium aluminium, since nickel aluminium does not have high reactivity, institute
Can be stored the long period in liquid storage stove, thus using the liquid storage stove of large-size, melting once is allow to be made opposite
More large-tonnage powder, simultaneously because it than great, devises the atomizer of large-size, when it being made to throw away, linear velocity is more
Greatly, atomizing effect is more preferable, more efficient.
Description of the drawings
Fig. 1 is atomization preparing apparatus structural schematic diagram of the present invention.
Fig. 2 is swirl atomizer structural scheme of mechanism of the present invention.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
A kind of atomization preparing apparatus of nickel aluminium powder, the device include furnace body, working chamber, spray chamber and collecting chamber.
The working chamber is located at 1 top of furnace body, including crucible 2, and crucible is externally provided with sensing heating body 3, is set above furnace body
There is bell.
It is equipped with partition board between working chamber and spray chamber, liquid storage packet 4 made of refractory material, institute are equipped in the spray chamber
The a diameter of 20cm of liquid storage packet is stated, is highly 50cm, liquid storage packet is wrapped with heat-preservation cotton, and induction melting crucible bottom passes through diversion pipe
It is connected to the liquid storage packet, diversion pipe is equipped with opening/closing mechanism, and liquid storage packet bottom connects swirl atomizer 5, institute by diversion pipe
The swirl atomizer stated is discoid, a diameter of 20cm, and the outside of the swirl atomizer is symmetrically equipped with 2 leakage fluid drams 8, leakage fluid dram
A diameter of 2cm, leakage fluid dram opening direction are the tangential direction of disk, and pulse-pressure tracheae 9, institute are equipped with above the swirl atomizer
Pulse-pressure tracheae connection air source is stated, control system controls the pressurization that air source carries out the melt in swirl atomizer pulsed, from
Heart nozzle surrounding is accordingly equipped with 2 inert gas nozzles 6, leakage fluid dram when inert gas nozzle direction face swirl atomizer rotates
Melt throws away direction；It is equipped with collecting chamber 7 below spray chamber, cyclone separator and ultrasonic vibrating screen are equipped in collecting chamber.
When carrying out powder by atomization using above-mentioned apparatus, the alloy compositions that select is include Al by atomic percent：20-
30%, Cr：2-2.8%, Nb：1.5-2.5%, Re：0.2-0.8%, surplus Ni.Cast after vacuum melting is obtained first
Alloy cast ingot with required component, is put in the crucible of vacuum induction melting furnace, and vacuum induction is opened after being subsequently vacuumed out and is added
Heat coil power supply heats the ingot casting in crucible, and ingot casting is completely melt after about 15-20min, using infrared measurement of temperature equipment to alloy
Melt carries out thermometric, and after keeping the temperature 2-3min at 1800-1850 DEG C, melt is entered by crucible in the liquid storage packet of spray chamber, with
It is directed in swirl atomizer by ceramic diversion pipe afterwards, swirl atomizer starts centrifugal rotation, while control system controls air source pair
Melt in swirl atomizer carries out pulse-pressure, and when rotating to atomization gas emission direction, the pulse applied promotes
Alloy melt is to spray at a high speed, the melt face atomization gas emission direction of ejection, and mutual angle is 0 °, the melt thrown away
With atomization gas frontal impact, fine droplet is ground under airflow function, and cooled and solidified is fine powder, subsequently enters collection
Room is collected after being detached by cyclone separator after vibrating screen sieves.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (1)
1. a kind of atomization preparing apparatus of nickel aluminium powder, the device include furnace body, working chamber, spray chamber and collecting chamber；It is described
Working chamber be located above furnace body, including crucible, crucible are externally provided with sensing heating body, bell are equipped with above furnace body；Working chamber and
It is equipped with partition board between spray chamber, is equipped with liquid storage packet made of refractory material in the spray chamber, the liquid storage packet is a diameter of
20cm is highly 50cm, and liquid storage packet is wrapped with heat-preservation cotton, and induction melting crucible bottom is connected to the storage by diversion pipe
Liquid packet, diversion pipe are equipped with opening/closing mechanism, and liquid storage packet bottom connects swirl atomizer by diversion pipe, and the swirl atomizer is
Discoid, the outside of a diameter of 20cm, the swirl atomizer are symmetrically equipped with 2 leakage fluid drams, a diameter of 2cm of leakage fluid dram, drain
Mouth opening direction is the tangential direction of disk, and pulse-pressure tracheae, the pulse-pressure tracheae are equipped with above the swirl atomizer
Air source is connected, control system controls the pressurization that air source carries out the melt in swirl atomizer pulsed, and swirl atomizer surrounding corresponds to
Ground is equipped with 2 inert gas nozzles, and leakage fluid dram melt throws away direction when inert gas nozzle direction face swirl atomizer rotates；
It is equipped with collecting chamber below spray chamber, cyclone separator and ultrasonic vibrating screen are equipped in collecting chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263659.1A CN106825596B (en) | 2016-12-30 | 2016-12-30 | A kind of atomization preparing apparatus of nickel aluminium powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263659.1A CN106825596B (en) | 2016-12-30 | 2016-12-30 | A kind of atomization preparing apparatus of nickel aluminium powder |
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| Publication Number | Publication Date |
|---|---|
| CN106825596A CN106825596A (en) | 2017-06-13 |
| CN106825596B true CN106825596B (en) | 2018-09-21 |
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| CN201611263659.1A Expired - Fee Related CN106825596B (en) | 2016-12-30 | 2016-12-30 | A kind of atomization preparing apparatus of nickel aluminium powder |
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Families Citing this family (8)
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| CN107322001A (en) * | 2017-06-19 | 2017-11-07 | 湖南工业大学 | A kind of 3D printing metal dust and its preparation facilities and method |
| CN107350477A (en) * | 2017-08-30 | 2017-11-17 | 湖南顶立科技有限公司 | A kind of powder preparing unit |
| CN111283209A (en) * | 2019-12-24 | 2020-06-16 | 南京超旭节能科技有限公司 | Processing method for catalyst alloy |
| CN114082934B (en) * | 2020-07-30 | 2023-03-17 | 北京理工大学 | Multi-component high-density calorific value aluminum-zirconium alloy powder and preparation method and device thereof |
| CN114082937A (en) * | 2020-08-03 | 2022-02-25 | 北京理工大学 | Spherical atomized aluminum-manganese-based multi-element alloy powder and preparation method thereof |
| CN114074186A (en) * | 2020-08-13 | 2022-02-22 | 北京理工大学 | Preparation method of spherical atomized magnesium-silicon-based multi-element alloy powder and obtained alloy powder |
| CN114472909B (en) * | 2022-02-07 | 2023-03-31 | 山东恒瑞磁电股份有限公司 | Integrated into one piece inductance alloy raw material powder preparation facilities |
| CN114472878B (en) * | 2022-02-07 | 2023-04-11 | 山东恒瑞磁电股份有限公司 | Preparation method and application of integrally-formed soft magnetic powder for inductor |
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| CN87106354A (en) * | 1986-09-16 | 1988-03-30 | 森特里姆公司 | The method and apparatus of manufacturing and further processing metallic substances |
| CN88204942U (en) * | 1988-04-23 | 1988-12-07 | 深圳科力铁有限公司 | Spraying powder-manufacturing device |
| CN2030117U (en) * | 1988-02-06 | 1989-01-04 | 中南工业大学 | Fast condensing equipment for making fine powder |
| JPH01201403A (en) * | 1988-02-06 | 1989-08-14 | Agency Of Ind Science & Technol | Rotary disk for centrifugal atomizing |
| JPH0328304A (en) * | 1989-06-23 | 1991-02-06 | Tokin Corp | Apparatus for manufacturing metal or alloy powder |
| CN104550989A (en) * | 2015-01-28 | 2015-04-29 | 大连理工大学 | Method and device for preparing superfine spherical metal powder for 3D printing |
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2016
- 2016-12-30 CN CN201611263659.1A patent/CN106825596B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87106354A (en) * | 1986-09-16 | 1988-03-30 | 森特里姆公司 | The method and apparatus of manufacturing and further processing metallic substances |
| CN2030117U (en) * | 1988-02-06 | 1989-01-04 | 中南工业大学 | Fast condensing equipment for making fine powder |
| JPH01201403A (en) * | 1988-02-06 | 1989-08-14 | Agency Of Ind Science & Technol | Rotary disk for centrifugal atomizing |
| CN88204942U (en) * | 1988-04-23 | 1988-12-07 | 深圳科力铁有限公司 | Spraying powder-manufacturing device |
| JPH0328304A (en) * | 1989-06-23 | 1991-02-06 | Tokin Corp | Apparatus for manufacturing metal or alloy powder |
| CN104550989A (en) * | 2015-01-28 | 2015-04-29 | 大连理工大学 | Method and device for preparing superfine spherical metal powder for 3D printing |
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| CN106825596A (en) | 2017-06-13 |
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