CN209288282U - A kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus - Google Patents
A kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus Download PDFInfo
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- CN209288282U CN209288282U CN201821773058.XU CN201821773058U CN209288282U CN 209288282 U CN209288282 U CN 209288282U CN 201821773058 U CN201821773058 U CN 201821773058U CN 209288282 U CN209288282 U CN 209288282U
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Abstract
The utility model provides a kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus, including atomization tank body, rotating disk and gas-powered rotary shaft；It is atomized tank body top center and is equipped with Metal Melting bottom pour ladle, side wall lower ends are equipped with the air shooter to gas-powered rotary shaft feed drive gas, and bottom is equipped with flour extraction pipe；Rotating disk is equipped with preheating device.The setting of preheating device, effectively raise temperature when rotating disk is atomized melt, the temperature of melt is unaffected when ensuring atomization, improve the effect and dynamics when atomization rotating disk is atomized melt, heating temperature is 200 DEG C -2500 DEG C, conventional dystectic metal is set also to can be carried out the production of powder by atomization, it is not limited solely to the metal classification of low melting point, increase the application range of atomising device, it is suitble to the metal atomization of different melting points, reduce adding for production equipment, reduce production cost, improves production efficiency.
Description
Technical field
The utility model relates to a kind of metal centrifugal atomizing fuel pulverizing plant, especially a kind of metal centrifugal atomizing powder is in advance
Hot centrifugal atomization apparatus.
Background technique
Atomization technique combines conventional alloys melting with powder metallurgy, for prepare common material and special microstructure and
The material of performance requirement provides important method.
Currently, the centrifugal atomization apparatus for preparing metal powder both at home and abroad includes spray chamber, there are crucible, earthenware above spray chamber
Crucible bottom is connected by transfusion pole with the indoor liquid outlet of materialization is placed in, and liquid outlet is corresponding with atomizing disk.By crucible by metal
It after dissolving, is flowed on high-speed rotating atomizing disk by transfusion pole and liquid outlet, under inert gas protection, metallic solution is from mist
Change plate edge to throw away, forms metal powder.
CN107127350A discloses a kind of metal centrifugal atomizing powder high-speed centrifugal atomization device, is atomized top of the tank
Center is equipped with Metal Melting bottom pour ladle, and side wall lower ends are equipped with the air shooter to gas-powered rotary shaft feed drive gas,
Bottom is equipped with flour extraction pipe；Air shooter is connected to high-pressure air source；Rotating disk is located at the underface of Metal Melting bottom pour ladle, rotating disk
It is connect with gas-powered rotary shaft top, and high speed rotation is driven by gas-powered rotary shaft.The atomization of the centrifugal atomization apparatus
Disk is when being atomized because the requirement influence product quality of atomization, while the model for applying atomising device is not achieved in rotating disk temperature
It encloses because temperature limited.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of the prior art, and providing a kind of can improve rotating disk temperature
With the metal centrifugal atomizing preheating centrifugal atomization apparatus of the range of atomising device application.
The technical solution of the utility model is: a kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus, including mist
Change tank body, rotating disk and gas-powered rotary shaft；The atomization tank body top center is equipped with Metal Melting bottom pour ladle, side wall lower ends
Equipped with the air shooter to gas-powered rotary shaft feed drive gas, bottom is equipped with flour extraction pipe；The rotating disk is located at gold
Belong to the underface of melting bottom pour ladle, rotating disk is connect with gas-powered rotary shaft top, and drives high speed by gas-powered rotary shaft
Rotation；The rotating disk is equipped with preheating device.
Further, the preheating device is high-frequency induction heating or pharoid.
Further, the heating temperature of preheating device is 200 DEG C -2500 DEG C.
Further, the preheating device is set to rotating disk lower part or is embedded inside, for preheating rotating disk.
Further, the gas-powered rotary shaft helically paddle or windmill, the revolving speed of the gas-powered rotary shaft
≥50000r/min。
Further, the gas-powered rotary shaft is fixed by rotating sandwich device, and the rotation sandwich device includes rotation
Rotating shaft support pedestal and rotary shaft mounting base.
The rotary shaft mounting base is fixed in rotary shaft support base, interior to be equipped with cooling water chamber；Rotary shaft supports bottom
Seat lower end is fixed in atomization tank body by height adjusting screw rod, and height adjusting screw rod is equipped with air shooter and is connected and fixed
Plate.
The upper end of the rotary shaft mounting base is additionally provided with the sealing device for closed rotating shaft and rotating disk.
The sealing device is labyrinth seal.
Further, the preheating centrifugal atomization apparatus further includes sieving in the powder filter of taper type, the powder filter sieve
It is fixed on the middle lower end of atomization tank body by air shooter, expansion joint is arranged with outside the height adjusting screw rod.
Further, the rotary shaft support base includes attachment base and rotary shaft deck, and rotary shaft deck is in " recessed " shape, Gu
It is scheduled on attachment base, middle part is equipped with rotary shaft and engages groove.
Cooling coil is equipped in the attachment base, cooling coil includes inner coil pipe and external disk twist, spaced
Pipe；The water outlet of the water inlet end of the inner coil pipe and outer coil pipe is located at spiral center, and installation by adhering is in height adjustment spiral shell
In bar；The water inlet end of the water outlet of inner coil pipe and outer coil pipe is connected to by circulating water pipe with cooling water chamber bottom.
Further, the atomization tank body includes end socket and hypocentrum；On hypocentrum side wall above air shooter
Equipped with outer cooling coil, the water inlet end of outer cooling coil is located at the bottom of hypocentrum, and water outlet is in the vertical direction than rotation
Low 10 ~ the 50cm in disk lower edge.
The end socket is equipped with manhole, inflating port, exhaust outlet, observation window, pressure gauge, shot-light and camera；It is described to fill
Port and exhaust outlet are located at the opposite two sides of end socket, and the shot-light and camera are symmetrically mounted on end socket.
The end socket is spherical seal head.
Further, the Metal Melting bottom pour ladle includes bottom pour ladle, bottom pour ladle seat ontology, lower cover plate and upper cover plate；The bottom pour ladle peace
In the middle part of bottom pour ladle seat ontology, aqueous vapor connecting tube is equipped with above bottom pour ladle, below under be connected with nozzle；The bottom pour ladle seat ontology
It is fixedly connected by mounting flange with the end socket of atomization tank body, top and bottom are respectively equipped with upper cover plate, lower cover plate.
The utility model has a characteristic that compared with prior art
1, rotating disk is equipped with preheating device, effectively raises temperature when rotating disk is atomized melt, it is ensured that
The temperature of melt is unaffected when atomization, improves effect and dynamics when atomization rotating disk is atomized melt, heating temperature
It is 200 DEG C -2500 DEG C, so that conventional dystectic metal is also can be carried out the production of powder by atomization, be not limited solely to low melting point
Metal classification increases the application range of atomising device, is suitble to the metal atomization of different melting points, reduces adding for production equipment
It sets, reduces production cost, improve production efficiency.
2, air shooter is not only gas-powered rotary shaft conveying high-pressure gas source, provides driving power；Also to powder mistake
Screen and gas-powered rotary shaft play a supportive role, and the intracorporal powder of atomization tank crosses the screen of taper type, because gas-powered rotates
The slight vibration that the rotation of axis generates, can effectively improve the effect of screen；Taper type screen can reduce metal powder in screen
Upper accumulation, while unqualified powder can be made to be deposited on the lower edge of screen due to gravity, it can effectively prevent blocking screen, effectively
Improve screen effect, improve work efficiency.
3, the gas-powered rotary shaft is fixed by rotating sandwich device, and rotation sandwich device is equipped with cooling water chamber, can be had
Effect effectively cool down to gas-powered rotary shaft, and can be to the rotating disk and Metal Melting bottom pour ladle above gas-powered rotary shaft
The distance of lower end, so improve metal centrifugal atomizing effect, it is ensured that the sphericity of centrifugal atomizing powder, grain diameter uniformly and
Difference is small.
It is further described below in conjunction with detailed construction of the drawings and specific embodiments to the utility model.
Detailed description of the invention
Fig. 1-is the structural schematic diagram that a kind of metal centrifugal atomizing powder of the utility model preheats centrifugal atomization apparatus；
Fig. 2-is the top view that centrifugal atomization apparatus is preheated in Fig. 1；
Fig. 3-is the schematic cross-section of A-A in Fig. 1；
Fig. 4-is the enlarged diagram in Fig. 3 at A；
Fig. 5-is the enlarged diagram in Fig. 3 at B；
Fig. 6-is the enlarged diagram in Fig. 5 at C；
1-flour extraction pipe, 2-baiting valves, 3-air shooters, 4-hypocentrums, 5-shot-lights, 6-exhaust outlets, 7-envelopes
Head, 8-pressure gauges, 9-observation windows, 10-bottom pour ladle seat ontologies, 11-inflating ports, 12-cameras, 13-outer cooling coils,
14-manholes, 15-rotating disks, 151-preheating devices, 16-gas-powered rotary shafts, 17-rotary shaft mounting bases, 18-rotations
Rotating shaft support pedestal, 181-rotary shaft decks, 182-attachment bases, 19-height adjusting screw rods, 20-expansion joints, 21-is fixed
Connecting plate, 22-nozzles, 23-lower cover plates, 24-bottom pour ladles, 25-mounting flanges, 26-aqueous vapor connecting tubes, 27-upper cover plates,
28-sealing devices, 29-cooling water chambers, 30-screens.
Specific embodiment
As shown in Fig. 1-6: a kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus, including atomization tank body, rotation
Disk 15 and gas-powered rotary shaft 16；It is atomized tank body top center and is equipped with Metal Melting bottom pour ladle 24, side wall lower ends are equipped with to gas
Body drives the air shooter 3 of 16 feed drive gas of rotary shaft, and bottom is equipped with flour extraction pipe 1；Rotating disk 15 is located at Metal Melting
The underface of bottom pour ladle 24, rotating disk 15 are connect with 16 top of gas-powered rotary shaft, and drive height by gas-powered rotary shaft 16
Speed rotation；The rotating disk 15 is equipped with preheating device 151.
Preheating device 151 is high-frequency induction heating, can also be pharoid, using high frequency sense in the present embodiment
It should heat, heating temperature is 200 DEG C -2500 DEG C, and the temperature range of large span can be suitble to the made of metal powder of different melting points, break original
Some temperature restrictions, only the metal of certain fusing points is capable of processing production, and the condition of powder processed is not achieved for dystectic metal, has
The application range of the raising atomising device of effect.
Preheating device 151 is set to 15 lower part of rotating disk or is embedded inside, for preheating rotating disk 15, can effectively reduce
Accumulation of the powder on preheating device 151, impacts device, while can be preheated in advance in processing, avoids because molten
Liquid just starts that temperature requirement is not achieved when atomization, influences atomizing effect and product quality.
Gas-powered rotary shaft 16 is air spindle, and air spindle uses the inert gas of compression to drive gas.
Gas-powered rotary shaft helically paddle, can also be windmill, this receipts used in the examples are windmill, more
The rotation for being conducive to push gas-powered rotary shaft, reduces friction, improves service life, the gas-powered rotary shaft 16 is most
Switch to 100000r/min greatly.
Gas-powered rotary shaft by high-pressure air source drive, be not necessarily to motor driven, do not need it is explosion-proof, do not need connection electricity
Line, easy for installation, small and abrasion of generating heat in rotary course is few, the metal powder uniform particle sizes of preparation.
The driving gas source is discharged from gas-powered rotary shaft 16, can be to being mounted on through labyrinth seal after-blow to rotating disk 15
Rotating disk 15 above it plays cooling effect, avoids damage of the high temperature metal solution to rotating disk 15, and then extend rotation
The service life of disk 15.
Gas-powered rotary shaft 16 is fixed by rotating sandwich device, and rotation sandwich device includes rotary shaft support base 18
With rotary shaft mounting base 17.Rotary shaft mounting base 17 is fixed in rotary shaft support base 18, interior to be equipped with cooling water chamber 29；Rotation
18 lower end of rotating shaft support pedestal is fixed in atomization tank body by height adjusting screw rod 19, and height adjusting screw rod 19 and gas convey
Pipe 3 is equipped with and is connected and fixed plate.The upper end of rotary shaft mounting base 17 is additionally provided with the sealing dress for closed rotating shaft and rotating disk 15
Set 28；Sealing device 28 is labyrinth seal.
Preheating centrifugal atomization apparatus further includes the powder filter sieve 30 in taper type, and screen 30 is made of stainless steel material,
Powder filter sieve 30 is fixed on the middle lower end of atomization tank body by air shooter 3, while air shooter 3 sieves powder filter
30 and gas-powered rotary shaft 16 play a supportive role, the intracorporal powder of atomization tank crosses the screen 30 of taper type, because gas-powered revolve
The slight vibration that the rotation of shaft 16 generates, can effectively improve the effect of screen 30；Taper type screen 30 can reduce metal powder
End is accumulated on screen 30, while unqualified powder can be made to be deposited on the lower edge of screen 30 due to gravity, can effectively prevent
Block screen 30.
Expansion joint 20 made of bellows are arranged with outside height adjusting screw rod 19.The bottom of expansion joint 20 and air shooter
Fixed connecting plate 21 is equipped between 3.
Rotary shaft support base includes attachment base 182 and rotary shaft deck 181, and rotary shaft deck 181 is in " recessed " shape, fixed
On attachment base 182, middle part is equipped with rotary shaft and engages groove.
Cooling coil is equipped in attachment base 182, cooling coil includes inner coil pipe and external disk twist, spaced
Pipe；The water outlet of the water inlet end of inner coil pipe and outer coil pipe is located at spiral center, and installation by adhering is in height adjusting screw rod 19
It is interior；The water inlet end of the water outlet of inner coil pipe and outer coil pipe is connected to by circulating water pipe with 29 bottom of cooling water chamber.
Being atomized tank body includes end socket 7 and hypocentrum 4；4 side wall of hypocentrum above air shooter 3 is equipped with outer cold
But coil pipe 13, the water inlet end of outer cooling coil 13 are located at the bottom of hypocentrum 4, and water outlet is in the vertical direction than rotating disk 15
The low 20cm in lower edge.
The water outlet of outer cooling coil 13 is in 10cm or more lower than the distance of 15 lower edge of rotating disk, within 50cm, energy
Ensure that the metal powder in atomization tank body after centrifugal atomizing obtains efficient, rapid cooling；And it will not reduce and be mounted on atomization tank body
Smelting efficiency in the Metal Melting bottom pour ladle 24 at top.If too small lower than the distance of 15 lower edge of rotating disk, outer cooling coil
Cooling water in 13 can reduce the smelting efficiency of Metal Melting bottom pour ladle 24；And it is too big, atomization tank in-vivo metal powder can be reduced
Cooling rate.Therefore outer 13 water outlet of cooling coil is 10 ~ 50cm lower than 15 lower edge of rotating disk in vertical direction.
End socket 7 is spherical seal head 7, and end socket 7 is equipped with manhole 14, inflating port 11, exhaust outlet 6, observation window 9, pressure
Table 8, shot-light 5 and camera 12；The inflating port 11 and exhaust outlet 6 are located at the opposite two sides of end socket 7, the shot-light 5 and camera shooting
First 12 are symmetrically mounted on end socket 7；Flour extraction pipe 1 is equipped with baiting valve 2.
The case where can quickly checking atomization tank in-vivo metal powder centrifugal atomizing by watch window, convenient for centrifugation mist
The condition of change is adjusted；The powder of centrifugal atomizing preparation is directly or after 30 filtering of powder filter sieve from the flour extraction pipe 1 of bottom
Into subsequent powder separating device.
After the metal powder centrifugal atomizing of single batch, it can enter in atomization tank body from manhole 14, to atomization tank
Body is cleaned, such as the cleaning or replacement to the powder filter sieve 30 below atomization tank body.
Camera 12 can be with the process of online record metal centrifugal atomizing and the shape of metal centrifugal atomizing powder, convenient for not
With the adjustment of technological parameter under centrifugal atomizing process conditions.
Metal Melting bottom pour ladle includes bottom pour ladle 24, bottom pour ladle seat ontology 10, lower cover plate 23 and upper cover plate 27；Bottom pour ladle 24 is mounted on leakage
The middle part of back stall ontology 10 is equipped with aqueous vapor connecting tube 26 above bottom pour ladle 24, below under be connected with nozzle 22；Bottom pour ladle seat ontology 10
It is fixedly connected by mounting flange 25 with the end socket 7 of atomization tank body, top and bottom are respectively equipped with upper cover plate 27, lower cover plate
23。
The application method of the utility model is:
Raw metal is fused into solution by Metal Melting bottom pour ladle 24 by the preheating centrifugal atomization apparatus；Pass through preheating device
151 in advance heat rotating disk 15, are conducive to be atomized melt, improve product quality, while passing through inflating port 11
Can be blown inert gas into atomization tank body, the gas that inflating port 11 is blown out can to the metal powder after centrifugal atomizing into
Row cooling；Rotating disk 15 is driven using revolving speed >=50000r/min gas-powered rotary shaft 16, is then leaked to from Metal Melting
The molten metal that packet 24 sprays forms globular metallic powder particle under the centrifugal force effect that 15 high speed rotation of rotating disk generates, and opens
Begin powder processed, can stop heating preheating device 151 according to the needs of production after atomization starts, save resource.
The above is specific embodiment of the present utility model, but the protection scope of the utility model is not limited to this,
It is any to be familiar with those skilled in the art within the technical scope disclosed by the utility model, technical side according to the present utility model
Case and its design are subject to equivalent substitution or change, should all cover within the protection scope of the utility model claims.
Claims (10)
1. a kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus, including atomization tank body, rotating disk (15) and gas drive
Dynamic rotary shaft (16)；The atomization tank body top center is equipped with Metal Melting bottom pour ladle (24), and side wall lower ends are equipped with to gas and drive
The air shooter (3) of dynamic rotary shaft (16) feed drive gas, bottom are equipped with flour extraction pipe (1)；The rotating disk (15) is located at
The underface of Metal Melting bottom pour ladle (24), rotating disk (15) are connect with gas-powered rotary shaft (16) top, and by gas-powered
Rotary shaft (16) drives high speed rotation；It is characterized in that, the rotating disk (15) is equipped with preheating device (151).
2. metal centrifugal atomizing powder according to claim 1 preheating centrifugal atomization apparatus, which is characterized in that described pre-
Thermal (151) is high-frequency induction heating or pharoid.
3. metal centrifugal atomizing powder according to claim 2 preheating centrifugal atomization apparatus, which is characterized in that pre- hot charging
The heating temperature for setting (151) is 200 DEG C -2500 DEG C.
4. metal centrifugal atomizing powder according to claim 3 preheating centrifugal atomization apparatus, which is characterized in that described pre-
Thermal (151) is set to rotating disk (15) lower part or is embedded inside, for preheating rotating disk (15).
5. metal centrifugal atomizing powder according to claim 1 preheating centrifugal atomization apparatus, which is characterized in that the gas
Body drives rotary shaft (16) helically paddle or windmill, revolving speed >=50000r/min of the gas-powered rotary shaft (16).
6. metal centrifugal atomizing powder according to claim 5 preheating centrifugal atomization apparatus, which is characterized in that the gas
Body driving rotary shaft (16) by rotation sandwich device fix, the rotation sandwich device include rotary shaft support base (18) and
Rotary shaft mounting base (17)；The rotary shaft mounting base (17) is fixed on rotary shaft support base (18), interior to be equipped with cooling
Water chamber (29)；Rotary shaft support base (18) lower end is fixed in atomization tank body by height adjusting screw rod (19), height adjustment
Screw rod (19) and air shooter (3), which are equipped with, is connected and fixed plate；The upper end of the rotary shaft mounting base (17) is additionally provided with for sealing
Close the sealing device (28) of rotary shaft and rotating disk (15)；The sealing device (28) is labyrinth seal.
7. metal centrifugal atomizing powder according to claim 6 preheating centrifugal atomization apparatus, which is characterized in that described pre-
Hot centrifugal atomization apparatus further includes the powder filter sieve (30) in taper type, and the powder filter sieve (30) passes through air shooter
(3) it is fixed on the middle lower end of atomization tank body, is arranged with expansion joint (20) outside the height adjusting screw rod (19).
8. metal centrifugal atomizing powder according to claim 6 preheating centrifugal atomization apparatus, which is characterized in that the rotation
Rotating shaft support pedestal includes attachment base (182) and rotary shaft deck (181), and rotary shaft deck is in " recessed " shape, is fixed on attachment base
(182) on, middle part is equipped with rotary shaft and engages groove；Cooling coil is equipped in the attachment base (182), cooling coil includes being in
Spiral shape, spaced inner coil pipe and outer coil pipe；The water outlet of the water inlet end of the inner coil pipe and outer coil pipe is located at spiral shape
Center, installation by adhering is in the height adjusting screw rod (19)；The water inlet end of the water outlet of inner coil pipe and outer coil pipe passes through circulation
Water pipe is connected to cooling water chamber (29) bottom.
9. metal centrifugal atomizing powder according to claim 1 preheating centrifugal atomization apparatus, which is characterized in that the mist
Changing tank body includes end socket (7) and hypocentrum (4)；Hypocentrum (4) side wall above air shooter (3) is equipped with outer cooling
Coil pipe (13), the water inlet end of outer cooling coil (13) are located at the bottom of hypocentrum (4), and water outlet is in the vertical direction than rotation
Low 10 ~ the 50cm in disk (15) lower edge；The end socket (7) is equipped with manhole (14), inflating port (11), exhaust outlet (6), observation window
Mouth (9), pressure gauge (8), shot-light (5) and camera (12)；It is opposite that the inflating port (11) and exhaust outlet (6) are located at end socket (7)
Two sides, the shot-light (5) and camera (12) are symmetrically mounted on end socket (7)；The end socket (7) is spherical seal head (7).
10. metal centrifugal atomizing powder according to claim 1 preheating centrifugal atomization apparatus, which is characterized in that described
Metal Melting bottom pour ladle includes bottom pour ladle (24), bottom pour ladle seat ontology (10), lower cover plate (23) and upper cover plate (27)；Bottom pour ladle (24) peace
In the middle part of the bottom pour ladle seat ontology (10), be equipped with aqueous vapor connecting tube (26) above bottom pour ladle (24), below under be connected with nozzle
(22)；The bottom pour ladle seat ontology (10) is fixedly connected by mounting flange (25) with the end socket (7) for being atomized tank body, top and bottom
Portion is respectively equipped with upper cover plate (27), lower cover plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773058.XU CN209288282U (en) | 2018-10-30 | 2018-10-30 | A kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821773058.XU CN209288282U (en) | 2018-10-30 | 2018-10-30 | A kind of metal centrifugal atomizing powder preheating centrifugal atomization apparatus |
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| CN209288282U true CN209288282U (en) | 2019-08-23 |
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ID=67647185
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070479A (en) * | 2021-03-18 | 2021-07-06 | 中国科学院力学研究所 | A carousel initial heating device for high temperature metal centrifugation atomizing powder process |
| CN114226740A (en) * | 2021-12-27 | 2022-03-25 | 南京尚吉增材制造研究院有限公司 | Centrifugal atomizing powder-making method and device |
-
2018
- 2018-10-30 CN CN201821773058.XU patent/CN209288282U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070479A (en) * | 2021-03-18 | 2021-07-06 | 中国科学院力学研究所 | A carousel initial heating device for high temperature metal centrifugation atomizing powder process |
| CN114226740A (en) * | 2021-12-27 | 2022-03-25 | 南京尚吉增材制造研究院有限公司 | Centrifugal atomizing powder-making method and device |
| CN114226740B (en) * | 2021-12-27 | 2023-07-28 | 南京尚吉增材制造研究院有限公司 | Centrifugal atomizing powder making method and device |
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