CN108817410A - A kind of gas atomization pulverization device being used to prepare submicron particle - Google Patents
A kind of gas atomization pulverization device being used to prepare submicron particle Download PDFInfo
- Publication number
- CN108817410A CN108817410A CN201810844541.0A CN201810844541A CN108817410A CN 108817410 A CN108817410 A CN 108817410A CN 201810844541 A CN201810844541 A CN 201810844541A CN 108817410 A CN108817410 A CN 108817410A
- Authority
- CN
- China
- Prior art keywords
- gas
- atomization
- distribution ring
- gas distribution
- molten metal
- 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.)
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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
- B22F9/06—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
- B22F9/082—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 atomising using a fluid
-
- 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
- B22F9/082—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 atomising using a fluid
- B22F2009/088—Fluid nozzles, e.g. angle, distance
-
- 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
- B22F9/082—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 atomising using a fluid
- B22F2009/0888—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 atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
-
- 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
- B22F9/082—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 atomising using a fluid
- B22F2009/0892—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 atomising using a fluid casting nozzle; controlling metal stream in or after the casting nozzle
Abstract
The invention discloses a kind of gas atomization pulverization devices for being used to prepare submicron particle, including pedestal, gas cylinder, molten metal flow-guiding mouth, gas distribution ring, gas distribution ring-type end cap.The atomization air cavity that gas cylinder is separated by gas distribution ring of the invention, play by atomization air inlet be responsible for and branch pipe input from atomizing medium guiding role, and there is airflow clearance spouting, the air-flow Guide spray structure of composition can be atomized the metal liquid of molten condition in atomization process, not only have nebulization efficiency high, and have the advantages that powder formation rate is high and thin at Powder Particle Size, particularly useful for making submicron particle.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to a kind of powder by gas-atomization for being used to prepare submicron particle
Device.
Background technique
Atomizer is critical component in metal atomization flouring technology, is referred to gas atomization morphology microstructure and size distribution etc.
Mark plays great influence.However the generally existing nebulization efficiency of atomizer and the lower problem of powder formation rate in the prior art, and
And it is thicker at Powder Particle Size, the powder that powder granularity section is distributed between 60-200 mesh accounts for the 80% of assembly powder, is unable to satisfy superfine powder
Body production needs.For this purpose, researching and developing one kind is used to prepare submicron particle, nebulization efficiency is high, and the high fuel pulverizing plant of powder formation rate is
The key to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of gas atomization pulverization devices for being used to prepare submicron particle.
The object of the present invention is achieved like this, including pedestal, gas cylinder, molten metal flow-guiding mouth, gas distribution ring, gas
Shunt cyclic annular end cap, the gas cylinder is set to pedestal, and the molten metal flow-guiding mouth is set to pedestal, and molten metal flow-guiding mouth with
Susceptor through-holes connection, molten metal flow-guiding mouth are located in gas cylinder, the tapered convex in gas distribution ring inner circle edge, shape
At air current spray nozzle structure, the gas distribution ring set is set to molten metal flow-guiding mouth, and the air current spray nozzle structure of gas distribution ring
Be equipped between molten metal flow-guiding mouth air-flow can by gap, the gas distribution ring connect with gas cylinder inner wall, general
Space in gas cylinder is separated into atomization air cavity, and each atomization air cavity is equipped with air inlet, the gas distribution ring-type end cap
Being equipped with air-flow set on gas cylinder end, and between gas distribution ring-type end cap and the air current spray nozzle structure of gas distribution ring can lead to
It crosses and to the inclined gap in molten metal flow-guiding mouth exit.
Beneficial effects of the present invention：The atomization air cavity that gas cylinder is separated by gas distribution ring of the invention, is played by mist
Change the atomizing medium guiding role of air inlet supervisor and branch pipe input, and has that airflow clearance is spouting, the air-flow of composition
Guide spray structure can be atomized the metal liquid of molten condition in atomization process, not only have nebulization efficiency height,
And have the advantages that powder formation rate is high and thin at Powder Particle Size, particularly useful for making submicron particle.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure：1- pedestal, 2- gas cylinder, 3- molten metal flow-guiding mouth, 4- gas distribution ring, 5- gas distribution ring-type end cap, 6- mist
Change air inlet supervisor, 7- is atomized air intake branch.
Specific embodiment
The present invention will be further described below with reference to the drawings, but the present invention is limited in any way, base
In present invention teach that it is made it is any transform or replace, all belong to the scope of protection of the present invention.
The present invention includes pedestal 1, gas cylinder 2, molten metal flow-guiding mouth 3, gas distribution ring 4, gas distribution as shown in Fig. 1
Cyclic annular end cap 5, the gas cylinder 2 are set to pedestal 1, and the molten metal flow-guiding mouth 3 is set to pedestal 1, and molten metal flow-guiding mouth 3
It is connected to 1 through-hole of pedestal, molten metal flow-guiding mouth 3 is located in gas cylinder 2, and the 4 inner circle edge of gas distribution ring is tapered convex
Shape is played, air current spray nozzle structure is formed, the gas distribution ring 4 is sheathed on molten metal flow-guiding mouth 3, and the gas of gas distribution ring 4
Be equipped between flow nozzle structure and molten metal flow-guiding mouth 3 air-flow can by gap, the gas distribution ring 4 and gas cylinder
The connection of 2 inner walls, is separated into atomization air cavity for the space in gas cylinder 2, each atomization air cavity is equipped with air inlet, the gas
Shunt cyclic annular end cap 5 and be set to 2 end of gas cylinder, and the air current spray nozzle structure of gas distribution ring-type end cap 5 and gas distribution ring 4 it
Between be equipped with air-flow can be by and to the inclined gap in 3 exit of molten metal flow-guiding mouth.
Preferably, the quantity of the gas distribution ring 4 is 1, and the space in gas cylinder 2 is separated into upper and lower two
It is atomized air cavity.
Preferably, the quantity of the gas distribution ring 4 at least 2, from top to bottom successively by the space in gas cylinder 2
Several atomization air cavitys are separated into, being equipped with air-flow between two adjacent gas distribution rings 4 can go out by and to molten metal flow-guiding mouth 3
Inclined gap at mouthful, and be parallel to each other between gap；By control gas distribution ring 4 quantity, i.e., control atomization air cavity with
And jet-stream wind quantity, to reach adjusting atomizing effect.
Preferably, the outer rim of the molten metal flow-guiding mouth 3 makes molten metal flow-guiding mouth 3 and gas distribution ring 4 in cone
Between gap tilted to 3 exit of molten metal flow-guiding mouth, water conservancy diversion through-hole is equipped with inside the molten metal flow-guiding mouth 3.
Preferably, diversion pipe is equipped in the water conservancy diversion through-hole, internal diameter is 10 ~ 20mm.
Preferably, the apex angle of the cone is 20 ~ 30 °.
Preferably, the atomization air cavity is equipped with two symmetrical air inlets.
Preferably, air inlet nearest from pedestal 1 in the air inlet is connect with atomization air inlet supervisor 6, remaining air inlet
Mouth is connect with atomization air intake branch 7, and each atomization air intake branch 7 is connect with atomization air inlet supervisor 6 respectively.
Preferably, air inlet nearest from pedestal 1 in the air inlet is connect with atomization air inlet supervisor 6, remaining air inlet
Mouth is connect with atomization air intake branch 7, and each atomization air intake branch 7 is connect with atomization air inlet supervisor 6 respectively.
Preferably, it is 15 ~ 30mm that the atomization air inlet, which is responsible for 6, is atomized the internal diameter of air intake branch 7,.
Preferably, the pedestal 1 and molten metal flow-guiding mouth 3 are one of the forming structure.
Preferably, the pedestal 1 and gas cylinder 2 are one of the forming structure.
Preferably, it is detachably connected between 2 inner wall of the gas distribution ring 4 and gas cylinder.
Preferably, the internal and external screw thread structure that is detachably connected as is detachably connected.
Preferably, the gap between the air current spray nozzle structure and molten metal flow-guiding mouth 3 of the gas distribution ring 4, with gas
Gap between the air current spray nozzle structure and gas flow splitter shape end cap 5 of body flow splitter 4 is parallel to each other.
Preferably, the vertical range between the gas distribution ring 4 and pedestal 1 is 10 ~ 15mm.
Preferably, between gas distribution ring 4 and pedestal 1 nearest from pedestal 1 in the gas distribution ring 4 it is vertical away from
From for 10 ~ 15mm.
Preferably, the gap between the gas distribution ring-type end cap 5 and the air current spray nozzle structure of gas distribution ring 4 is
1~2mm。
Preferably, the gap between the air current spray nozzle structure and molten metal flow-guiding mouth 3 of the gas distribution ring 4 be 1 ~
3mm。
Preferably, the vertical range between the gas distribution ring 4 and gas distribution ring-type end cap 5 is 8 ~ 10mm.
Preferably, gas distribution ring 4 and gas nearest from gas distribution ring-type end cap 5 in the gas distribution ring 4
Shunting the vertical range between cyclic annular end cap 5 is 8 ~ 10mm.
Preferably, 4 liang of the gas distribution ring it is adjacent between vertical range be 8 ~ 10mm.
Preferably, the atomizing medium that the atomization air inlet supervisor 6, atomization air intake branch 7 convey is nitrogen.
Working principle and the course of work of the present invention：Molten metal liquid is flowed by the diversion pipe in molten metal flow-guiding mouth 3,
High pressure gas respectively enters atomization air cavity by atomization air inlet supervisor 6 and atomization air intake branch 7, and respectively along gas distribution ring
Gap and gas distribution ring-type end cap 5 and gas distribution ring 4 between 4 air current spray nozzle structure and molten metal flow-guiding mouth 3
Gap between air current spray nozzle structure sprays, and is atomized metal liquid to get submicron particle.
It is surveyed using the 316L stainless steel powder that common metal powder determination of recovery rates method obtains present invention processing
Fixed, wherein atomizing medium is nitrogen, and pressure 1.8MPa, melt temperature is 1750 DEG C, and measurement result is shown in Table 1；Using common metal
The copper powder powder that powder determination of recovery rates method obtains present invention processing is measured, and wherein atomizing medium is nitrogen, pressure
2.6MPa, melt temperature are 1350 DEG C, and measurement result is shown in Table 1；
1 metal-powder determination of recovery rates result of table.
。
Claims (10)
1. a kind of gas atomization pulverization device for being used to prepare submicron particle, it is characterized in that：Including pedestal（1）, gas cylinder
（2）, molten metal flow-guiding mouth（3）, gas distribution ring（4）, gas distribution ring-type end cap（5）, the gas cylinder（2）Set on pedestal
（1）, the molten metal flow-guiding mouth（3）Set on pedestal（1）, and molten metal flow-guiding mouth（3）With pedestal（1）Through-hole connection, metal
Liquid flow-guiding mouth（3）Positioned at gas cylinder（2）Interior, described gas distribution ring（4）The tapered convex in inner circle edge forms air-flow spray
Mouth structure, the gas distribution ring（4）It is sheathed on molten metal flow-guiding mouth（3）, and gas distribution ring（4）Air current spray nozzle structure
With molten metal flow-guiding mouth（3）Between be equipped with air-flow can by gap, the gas distribution ring（4）With gas cylinder（2）It is interior
Wall connection, by gas cylinder（2）Interior space is separated into atomization air cavity, and each atomization air cavity is equipped with air inlet, the gas
Shunt cyclic annular end cap（5）Set on gas cylinder（2）End, and gas distribution ring-type end cap（5）With gas distribution ring（4）Air-flow spray
Air-flow is equipped between mouth structure can be by and to molten metal flow-guiding mouth（3）The inclined gap in exit.
2. the gas atomization pulverization device according to claim 1 for being used to prepare submicron particle, it is characterized in that：It is described
Gas distribution ring（4）Quantity be 1, by gas cylinder（2）Interior space is separated into upper and lower two atomizations air cavity.
3. the gas atomization pulverization device according to claim 1 for being used to prepare submicron particle, it is characterized in that：It is described
Gas distribution ring（4）Quantity at least 2, by gas cylinder（2）Interior space is successively separated into several mists from top to bottom
Change air cavity, two adjacent gas distribution rings（4）Between be equipped with air-flow can be by and to molten metal flow-guiding mouth（3）Exit is inclined
Gap, and be parallel to each other between gap.
4. the gas atomization pulverization device according to claim 1 for being used to prepare submicron particle, it is characterized in that：It is described
Molten metal flow-guiding mouth（3）Outer rim in cone, make molten metal flow-guiding mouth（3）With gas distribution ring（4）Between gap to
Molten metal flow-guiding mouth（3）Exit inclination, the molten metal flow-guiding mouth（3）Inside is equipped with water conservancy diversion through-hole.
5. the gas atomization pulverization device according to claim 4 for being used to prepare submicron particle, it is characterized in that：It is described
Water conservancy diversion through-hole in be equipped with diversion pipe, internal diameter be 10 ~ 20mm.
6. the gas atomization pulverization device according to claim 4 for being used to prepare submicron particle, it is characterized in that：It is described
Cone apex angle be 20 ~ 30 °.
7. any gas atomization pulverization device for being used to prepare submicron particle according to claim 1 ~ 3, feature
It is：The atomization air cavity is equipped with two symmetrical air inlets.
8. the gas atomization pulverization device according to claim 1 for being used to prepare submicron particle, it is characterized in that：It is described
Air inlet in from pedestal（1）Nearest air inlet and atomization air inlet supervisor（6）Connection, remaining air inlet and atomization air intake branch
（7）Connection, and each atomization air intake branch（7）It is responsible for respectively with atomization air inlet（6）Connection.
9. the gas atomization pulverization device according to claim 7 for being used to prepare submicron particle, it is characterized in that：It is described
Air inlet in from pedestal（1）Nearest air inlet and atomization air inlet supervisor（6）Connection, remaining air inlet and atomization air intake branch
（7）Connection, and each atomization air intake branch（7）It is responsible for respectively with atomization air inlet（6）Connection.
10. the gas atomization pulverization device for being used to prepare submicron particle according to claim 8 or claim 9, it is characterized in that：
The atomization air inlet supervisor（6）, atomization air intake branch（7）Internal diameter be 15 ~ 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844541.0A CN108817410A (en) | 2018-07-27 | 2018-07-27 | A kind of gas atomization pulverization device being used to prepare submicron particle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844541.0A CN108817410A (en) | 2018-07-27 | 2018-07-27 | A kind of gas atomization pulverization device being used to prepare submicron particle |
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| Publication Number | Publication Date |
|---|---|
| CN108817410A true CN108817410A (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810844541.0A Pending CN108817410A (en) | 2018-07-27 | 2018-07-27 | A kind of gas atomization pulverization device being used to prepare submicron particle |
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| CN (1) | CN108817410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280774A (en) * | 2019-08-02 | 2019-09-27 | 上海大学 | A kind of apparatus for preparing metal powder |
| CN113134614A (en) * | 2021-04-22 | 2021-07-20 | 昆明冶金研究院有限公司 | Copper powder for low-oxygen spherical injection molding and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272229A (en) * | 1968-11-27 | 1972-04-26 | British Iron Steel Research | Improvements in and relating to the treatment of molten material |
| SU707611A1 (en) * | 1977-04-18 | 1980-01-05 | Украинский научно-исследовательский институт специальных сталей, сплавов и ферросплавов | Apparatus for producing metal powder by spraying |
| SU782960A1 (en) * | 1979-01-04 | 1980-11-30 | Украинский научно-исследовательский институт специальных сталей, сплавов и ферросплавов | Device for making powders by melt-spraying |
| US5993509A (en) * | 1996-11-19 | 1999-11-30 | Nat Science Council | Atomizing apparatus and process |
| US6398125B1 (en) * | 2001-02-10 | 2002-06-04 | Nanotek Instruments, Inc. | Process and apparatus for the production of nanometer-sized powders |
| CN200957455Y (en) * | 2006-08-18 | 2007-10-10 | 陕西科技大学 | Apparatus for producing metal ultramicro powder |
| EP2027934A1 (en) * | 2007-07-25 | 2009-02-25 | Schott Corporation | Method for spray-forming melts of glass and glass-ceramic compositions |
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| CN105436509A (en) * | 2014-09-30 | 2016-03-30 | 南京理工大学 | Metal atomization double-layer restrictive nozzle with electromagnetic field assisting function |
-
2018
- 2018-07-27 CN CN201810844541.0A patent/CN108817410A/en active Pending
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| GB1272229A (en) * | 1968-11-27 | 1972-04-26 | British Iron Steel Research | Improvements in and relating to the treatment of molten material |
| SU707611A1 (en) * | 1977-04-18 | 1980-01-05 | Украинский научно-исследовательский институт специальных сталей, сплавов и ферросплавов | Apparatus for producing metal powder by spraying |
| SU782960A1 (en) * | 1979-01-04 | 1980-11-30 | Украинский научно-исследовательский институт специальных сталей, сплавов и ферросплавов | Device for making powders by melt-spraying |
| US5993509A (en) * | 1996-11-19 | 1999-11-30 | Nat Science Council | Atomizing apparatus and process |
| US6398125B1 (en) * | 2001-02-10 | 2002-06-04 | Nanotek Instruments, Inc. | Process and apparatus for the production of nanometer-sized powders |
| CN200957455Y (en) * | 2006-08-18 | 2007-10-10 | 陕西科技大学 | Apparatus for producing metal ultramicro powder |
| EP2027934A1 (en) * | 2007-07-25 | 2009-02-25 | Schott Corporation | Method for spray-forming melts of glass and glass-ceramic compositions |
| CN201217073Y (en) * | 2008-06-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Atomizing nozzle with gas concomitancy stream |
| CN105436509A (en) * | 2014-09-30 | 2016-03-30 | 南京理工大学 | Metal atomization double-layer restrictive nozzle with electromagnetic field assisting function |
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| Title |
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| 王盘鑫: "《粉末冶金学》", 31 May 1997, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280774A (en) * | 2019-08-02 | 2019-09-27 | 上海大学 | A kind of apparatus for preparing metal powder |
| CN113134614A (en) * | 2021-04-22 | 2021-07-20 | 昆明冶金研究院有限公司 | Copper powder for low-oxygen spherical injection molding and preparation method thereof |
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Application publication date: 20181116 |