CN106825596A - 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
- CN106825596A CN106825596A CN201611263659.1A CN201611263659A CN106825596A CN 106825596 A CN106825596 A CN 106825596A CN 201611263659 A CN201611263659 A CN 201611263659A CN 106825596 A CN106825596 A CN 106825596A
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- Prior art keywords
- swirl atomizer
- chamber
- leakage fluid
- liquid storage
- storage bag
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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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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a kind of atomization preparing apparatus of nickel aluminium powder, including body of heater, working chamber, spray chamber and collecting chamber, working chamber's crucible bottom is connected to liquid storage bag by mozzle, liquid storage bag bottom connects swirl atomizer by mozzle, swirl atomizer is discoid, a diameter of 20cm, the outside of the swirl atomizer is symmetrically provided 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, swirl atomizer top is provided with pulse-pressure tracheae, the pulse-pressure tracheae connects source of the gas, control system control source of the gas carries out the pressurization of pulsed to the melt in swirl atomizer, swirl atomizer surrounding is accordingly provided with 2 inert gas nozzles, leakage fluid dram melt throws away direction when inert gas nozzle direction just rotates to swirl atomizer；Spray chamber lower section is provided with collecting chamber, and cyclone separator and ultrasonic vibrating screen are provided with collecting chamber, present invention improves crushing effect and improves the uniformity coefficient of powder.
Description
Technical field
The invention belongs to materials processing technology field, more particularly, to a kind of atomization preparing apparatus of nickel aluminium powder.
Background technology
Intermetallic compound Ni3Al is the yield strength-temperature effect for possessing abnormality, 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 particularly sent out in aviation
Motivation blade industry has broad application prospects.3D printing, or increasing material manufacturing is used as a kind of fast short-term training of rising in recent years
Type technique, using successively powdering, laser or electron beam melt the mode being molded, and realize the finishing shaping of precise part, and
And the defects such as the shrinkage cavity shrinkage porosity of casting process appearance are avoided, as a kind of emerging material manufacturing process.
Powder used by current 3D printing, typically by vacuum pouring after melting into ingot casting, subsequent secondary smelting is simultaneously used
The mode for being atomized legal system powder is obtained, and in current atomization method, after typically being flowed directly out using metal bath, melt is blown
Realize atomization.The more advanced technique in part is atomized after then melt is thrown away 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, the effect of the direction of liquid stream to being atomized
Granularity with powder after atomization has an impact, but current centrifuging process after continuous centrifugal goes out liquid by the way of blowing, because
And make obtained powder particles skewness.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of atomization preparing apparatus of nickel aluminium powder.
The complete technical scheme of the present invention includes：
A kind of atomization preparing apparatus of nickel aluminium powder, described device includes body of heater, working chamber, spray chamber and collecting chamber.
Described working chamber is located at body of heater top, including crucible, and crucible is externally provided with sensing heating body, and body of heater top is provided with stove
Lid.
Dividing plate is provided between working chamber and spray chamber, the liquid storage bag that refractory material is made, institute are provided with described spray chamber
The a diameter of 20cm of liquid storage bag is stated, is highly 50cm, liquid storage bag is wrapped with heat-preservation cotton, and induction melting crucible bottom passes through mozzle
Described liquid storage bag is connected to, mozzle is provided with opening/closing mechanism, and liquid storage bag bottom connects swirl atomizer, institute by mozzle
The swirl atomizer stated is discoid, a diameter of 20cm, and the outside of the swirl atomizer is symmetrically provided with 2 leakage fluid drams, leakage fluid dram
A diameter of 2cm, leakage fluid dram opening direction is the tangential direction of disk, and the swirl atomizer top is provided with pulse-pressure tracheae, institute
Pulse-pressure tracheae connection source of the gas is stated, control system control source of the gas carries out the pressurization of pulsed to the melt in swirl atomizer, from
Heart nozzle surrounding is accordingly provided with 2 inert gas nozzles, leakage fluid dram when inert gas nozzle direction just rotates to swirl atomizer
Melt throws away direction；Spray chamber lower section is provided with collecting chamber, and cyclone separator and ultrasonic vibrating screen are provided with collecting chamber.
The present invention is relative to the advantage of prior art：By centrifugal nozzle, alloy melt is got rid of with centrifugal
Go out, increased the speed for throwing away, thus bigger crushing force can be produced when being contacted with atomization air flow, improve crushing effect,
Coordinate air pulse pressurization simultaneously, make melt and sprayed with high speed when just to atomization air flow direction, frontal impact atomization air flow hair
Raw collision, while coordinating air pulse pressurization, is made melt and is sprayed with high speed when just to atomization air flow direction, frontal impact atomization
Gas stream make impact, while the features such as density, speed of melting, liquid supply speed, centrifugal rotational speed according to nickel alumin(i)um alloy, entering for it
The optimization design of liquid storage bag and atomizer size is gone, relative to titanium aluminium, because nickel aluminium does not have reactivity high, institute
Can be deposited the long period in liquid storage stove, thus using the liquid storage stove of large-size, melting once is set to be obtained relatively
More large-tonnage powder, simultaneously because it devises the atomizer of large-size than great, when throwing away it, linear velocity is more
Greatly, atomizing effect is more preferably, in hgher efficiency.
Brief description of the drawings
Fig. 1 is atomization preparing apparatus structural representation of the present invention.
Fig. 2 is swirl atomizer structural scheme of mechanism of the present invention.
Specific embodiment
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, described device includes body of heater, working chamber, spray chamber and collecting chamber.
Described working chamber is located at the top of body of heater 1, including crucible 2, and crucible is externally provided with sensing heating body 3, and body of heater top sets
There is bell.
Dividing plate is provided between working chamber and spray chamber, the liquid storage bag 4 that refractory material is made, institute are provided with described spray chamber
The a diameter of 20cm of liquid storage bag is stated, is highly 50cm, liquid storage bag is wrapped with heat-preservation cotton, and induction melting crucible bottom passes through mozzle
Described liquid storage bag is connected to, mozzle is provided with opening/closing mechanism, and liquid storage bag bottom connects swirl atomizer 5, institute by mozzle
The swirl atomizer stated is discoid, a diameter of 20cm, and the outside of the swirl atomizer is symmetrically provided with 2 leakage fluid drams 8, leakage fluid dram
A diameter of 2cm, leakage fluid dram opening direction is the tangential direction of disk, and the swirl atomizer top is provided with pulse-pressure tracheae 9, institute
Pulse-pressure tracheae connection source of the gas is stated, control system control source of the gas carries out the pressurization of pulsed to the melt in swirl atomizer, from
Heart nozzle surrounding is accordingly provided with 2 inert gas nozzles 6, leakage fluid dram when inert gas nozzle direction just rotates to swirl atomizer
Melt throws away direction；Spray chamber lower section is provided with collecting chamber 7, and cyclone separator and ultrasonic vibrating screen are provided with collecting chamber.
When carrying out powder by atomization using said apparatus, the alloy compositions of selection are to include Al by atomic percent：20-
30%, Cr：2-2.8%, Nb：1.5-2.5%, Re：0.2-0.8%, balance of Ni.Cast after vacuum melting is obtained first
Alloy cast ingot with required component, is put in the crucible of vacuum induction melting furnace, vacuum induction is opened after being subsequently vacuumed out and is added
Heat coil power supply, to the ingot casting heating in crucible, ingot casting is completely melt after about 15-20min, using infrared measurement of temperature equipment to alloy
Melt carries out thermometric, and after being incubated 2-3min at 1800-1850 DEG C, melt is entered in the liquid storage bag of spray chamber by crucible, with
It is directed in swirl atomizer by ceramic mozzle afterwards, swirl atomizer starts centrifugal rotation, while control system control source of the gas pair
Melt in swirl atomizer carries out pulse-pressure, and when atomization gas emission direction is rotated to, the pulse for being applied promotes
Alloy melt is sprayed with high speed, and just to atomization gas emission direction, angle is 0 °, the melt for throwing away to the melt of ejection each other
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 sieved through vibratory sieve after cyclone separator is separated.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall 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, described device includes body of heater, working chamber, spray chamber and collecting chamber.It is described
Working chamber be located at body of heater top, including crucible, crucible is externally provided with sensing heating body, and body of heater top is provided with bell.Working chamber and
Dividing plate is provided between spray chamber, the liquid storage bag that refractory material is made is provided with described spray chamber, the liquid storage bag is a diameter of
20cm, is highly 50cm, and liquid storage bag is wrapped with heat-preservation cotton, and induction melting crucible bottom is connected to described storage by mozzle
Liquid bag, mozzle is provided with opening/closing mechanism, and liquid storage bag bottom connects swirl atomizer by mozzle, and described swirl atomizer is
Discoid, a diameter of 20cm, the outside of the swirl atomizer is symmetrically provided with 2 leakage fluid drams, a diameter of 2cm of leakage fluid dram, discharge opeing
Mouth opening direction is the tangential direction of disk, and the swirl atomizer top is provided with pulse-pressure tracheae, the pulse-pressure tracheae
Connection source of the gas, control system control source of the gas carries out the pressurization of pulsed, swirl atomizer surrounding correspondence to the melt in swirl atomizer
Be provided with 2 inert gas nozzles, leakage fluid dram melt throws away direction when inert gas nozzle direction just rotates to swirl atomizer；
Spray chamber lower section is provided with collecting chamber, and cyclone separator and ultrasonic vibrating screen are provided with 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 |
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| 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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| CN106825596A true CN106825596A (en) | 2017-06-13 |
| CN106825596B 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN114082934A (en) * | 2020-07-30 | 2022-02-25 | 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 |
| CN114472878A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Preparation method and application of integrally-formed soft magnetic powder for inductor |
| CN114472909A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Integrated into one piece inductance alloy raw material powder preparation facilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114082934A (en) * | 2020-07-30 | 2022-02-25 | 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 |
| CN114472878A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Preparation method and application of integrally-formed soft magnetic powder for inductor |
| CN114472909A (en) * | 2022-02-07 | 2022-05-13 | 山东恒瑞磁电科技有限公司 | Integrated into one piece inductance alloy raw material powder preparation facilities |
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| CN106825596B (en) | 2018-09-21 |
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