CN114603148A - Preparation device and preparation method of spherical alloy powder - Google Patents
Preparation device and preparation method of spherical alloy powder Download PDFInfo
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- CN114603148A CN114603148A CN202210506742.6A CN202210506742A CN114603148A CN 114603148 A CN114603148 A CN 114603148A CN 202210506742 A CN202210506742 A CN 202210506742A CN 114603148 A CN114603148 A CN 114603148A
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- 239000000843 powder Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 30
- 239000000956 alloy Substances 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 70
- 239000000155 melt Substances 0.000 claims description 38
- 229910052786 argon Inorganic materials 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 238000003491 array Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 206010010904 Convulsion Diseases 0.000 claims description 2
- 230000036461 convulsion Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 7
- 230000003028 elevating effect Effects 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910002976 CaZrO3 Inorganic materials 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910021523 barium zirconate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses a preparation device and a preparation method of spherical alloy powder, and relates to the technical field of preparation of spherical alloy powder. The preparation device of the spherical alloy powder comprises supporting legs, wherein the top of each supporting leg is fixedly connected with a box body, and the bottom of each box body is connected with a double-layer water-cooling copper crucible through a lifting mechanism. Through setting up a plurality of fixed pipes and swiveling wheel one-to-one, and the diameter of fixed pipe is less relatively, thereby can reduce the undulant range of liquid level, the fluctuation that produces when each swiveling wheel rotates is independent each other, mutual noninterference, thereby make the undulant range of fuse-element liquid level in the fixed pipe littleer, and simultaneously, when the swiveling wheel is high-speed rotatory, can produce an opposite suction to the fuse-element liquid level in the fixed pipe, thereby can reduce the undulant range of liquid level, make the liquid level more steady, and, can guarantee that the fuse-element liquid level in the fixed pipe is in the height of settlement, make the spherical powder particle diameter of guaranteeing the preparation more even.
Description
Technical Field
The invention relates to the technical field of spherical alloy powder preparation, in particular to a preparation device and a preparation method of spherical alloy powder.
Background
When the existing spherical alloy powder preparation device is used, the preparation method comprises the following steps: 1. smelting an alloy ingot: adding a titanium ingot or a titanium alloy ingot into a double-layer water-cooled copper crucible, then filling argon, and melting the titanium ingot or the titanium alloy ingot by the induction coil to the double-layer water-cooled copper crucible; 2. atomizing molten drops: after the titanium ingot or the titanium alloy ingot is completely melted and the liquid level is stable, the lower end of the rotating wheel is placed below the liquid level of the double-layer water-cooled copper crucible, and meanwhile, the rotating wheel rotates at a high speed, so that molten drops fly out along a parabola under the action of centrifugal force and exchange heat with argon; 3. and (3) collecting powder: collecting the spherical powder after the heat exchange and solidification of the molten drops; 4. powder screening: and screening the spherical powder to obtain a finished product.
However, during the atomization process of the atomization of the molten drops, the liquid level of the melt in the double-layer water-cooled copper crucible fluctuates sharply due to the high-speed rotation of the plurality of rotating wheels, so that the particle size of the prepared spherical powder is not uniform.
Disclosure of Invention
The present invention is directed to a device and a method for preparing spherical alloy powder, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation device of spherical alloy powder comprises supporting legs, wherein the top of each supporting leg is fixedly connected with a box body, the bottom of the box body is connected with a double-layer water-cooling copper crucible through a lifting mechanism, an induction coil is fixedly sleeved on the outer side wall of the double-layer water-cooling copper crucible, the inner side wall of the box body is fixedly connected with a U-shaped mounting plate, the side wall of the mounting plate is rotatably connected with a plurality of rotating wheels arranged in arrays through a rotating shaft, the side wall of the mounting plate is fixedly connected with a first motor, the output end of the first motor is fixed with one end of the rotating shaft, the inner side wall of the box body is fixedly connected with a supporting plate, a plurality of fixing tubes arranged in arrays are fixedly inserted into the upper side wall of the supporting plate, strip-shaped openings are formed in the side wall of each fixing tube, the rotating wheels are inserted into the strip-shaped openings, and the lower ends of the fixing tubes penetrate through the lower side wall of the supporting plate and are fixedly connected with fixing disks, and the fixed disk slides at the inside wall of double-deck water-cooling copper crucible, the last lateral wall of backup pad is provided with the updraft ventilator mechanism that is used for carrying out convulsions to the intraductal fuse-element liquid level of fixed tube, and the lateral wall of fixed tube is provided with the control mechanism who is used for controlling fuse-element liquid level height, be provided with the collection mechanism that is used for collecting spherical alloy powder in the box.
Preferably, elevating system includes first U-shaped board and the second U-shaped board of fixed connection lateral wall under the box, and the lateral wall fixedly connected with dead lever of first U-shaped board, the lateral wall cover of dead lever is equipped with the removal pipe, and the upper end of removal pipe runs through the bottom of box and fixed with the bottom of double-deck water-cooling copper crucible, the lateral wall of second U-shaped board rotates and is connected with the threaded rod, the lateral wall threaded connection of threaded rod has the thread bush, and the upper end of thread bush runs through the bottom of box and fixed with the bottom of double-deck water-cooling copper crucible, the lower lateral wall fixedly connected with second motor of second U-shaped board, and the output of second motor is fixed with the lower extreme of threaded rod.
Preferably, the collecting mechanism comprises an argon pipe fixedly inserted on the upper side wall of the box body, the side wall of the argon pipe is fixedly connected with an electromagnetic valve, the lower end of the argon pipe penetrates through the lower side wall of the box body and is fixedly connected with a collecting box, the side wall of the argon pipe is fixedly connected with a conical collecting cover, the bottom of the collecting box is slidably connected with a collecting box, the side wall of the collecting box is fixedly connected with a handle, a through hole is formed in the bottom of the collecting box, a filter plate is fixedly connected in the through hole, and a lower side wall of the collecting box is fixedly connected with an outlet pipe.
Preferably, the exhaust mechanism includes the fixed plate that a plurality of arrays of lateral wall set up in the backup pad of fixed connection, and the upper end fixedly connected with work box of each fixed plate, the work box is close to the lateral wall fixedly connected with exhaust column of fixed pipe, and the lateral wall fixedly connected with exhaust pipe of exhaust column is kept away from to the work box, the fixed plate that two symmetries of lower lateral wall fixedly connected with of mounting panel set up, and two relative lateral walls of fixed plate rotate and be connected with the dwang, the dwang is inserted and is established in the work box, and rotates through the dwang in each work box and be connected with the fan that changes, the rotation of dwang drives through actuating mechanism.
Preferably, actuating mechanism includes the drive pulley of fixed connection in pivot one end, the one end of dwang runs through the lateral wall and the fixedly connected with driven pulley of one of them fixed plate, and driven pulley and drive pulley pass through belt drive.
Preferably, the control mechanism comprises a moving rod inserted into one of the side walls of the fixed tube, the other end of the moving rod is fixedly connected with a moving plate, the moving plate is connected with the upper side wall of the support plate through a reset mechanism, the reset mechanism is connected with an installation block, and the side wall of the installation block is fixedly connected with a distance sensor.
Preferably, the reset mechanism comprises two symmetrically-arranged fixed blocks fixedly connected to the side wall of the support plate, a T-shaped guide rod is inserted into the side wall of each fixed block, one end of each T-shaped guide rod is fixed to the side wall of the movable plate, and a spring is sleeved on the side wall of each T-shaped guide rod.
Preferably, a heating ring is fixedly connected to the side wall of each fixed pipe.
Preferably, each side wall of the strip-shaped opening is fixedly connected with two symmetrically-arranged fixing grooves, and each fixing groove comprises an inclined plane.
The invention also provides a preparation method of the spherical alloy powder, which comprises the following steps:
s1, starting a second motor, wherein the rotation of the second motor drives the rotation of the threaded rod, so as to drive the threaded sleeve and the movable tube to lift, and further drive the double-layer water-cooled copper crucible to lift;
s2, starting the first motor, wherein the rotation of the first motor drives the rotation shaft and the rotating wheel to rotate;
s3, when the fixed disk slides in the double-layer water-cooled copper crucible, the melt in the double-layer water-cooled copper crucible is extruded and rises along a plurality of fixed tubes, so that the lower end of the rotating wheel is arranged under the liquid level of the melt in the fixed tubes, the fixed tubes and the rotating wheel are arranged in a one-to-one correspondence manner, and the diameters of the fixed tubes are relatively small, so that the fluctuation range of the liquid level can be reduced;
s4, when the melt in the double-layer water-cooled copper crucible gradually enters the fixed tube, the pressure generated by the melt can push the movable rod to move, the movable rod moves to drive the movable plate to move synchronously, meanwhile, the spring contracts, the position information of the movable plate is detected through the distance sensor, when the melt reaches the set height, the lifting mechanism is controlled through the distance sensor to stop lifting the double-layer water-cooled copper crucible, and when the liquid level in the fixed tube is too high, the double-layer water-cooled copper crucible can be lowered through the lifting mechanism, so that the liquid level of the melt in the fixed tube is ensured to be at the set height, the liquid level is ensured to be constant, namely, the melt in the groove at the outer edge of the rotating wheel can be ensured to be more uniform in the rotating process of the rotating wheel, and the particle size of the prepared spherical powder is more uniform;
s5, when the rotating shaft rotates, the driving belt pulley is driven to rotate, the driving belt pulley drives the driven belt pulley and the rotating rod to rotate through a belt, the rotating rod drives the rotating fans to rotate synchronously, so that air is extracted through the exhaust pipe and is discharged through the exhaust pipe, when the rotating wheel rotates, forward thrust can be given to the melt in the tangential direction of the rotating wheel, and the thrust can enable the liquid level to fluctuate;
s6, when the rotating wheel rotates, the molten drop flies out along the parabola under the action of centrifugal force;
and S7, simultaneously, opening the electromagnetic valve, introducing argon gas through the argon gas pipe, and according to the Bernoulli principle, the pressure at the place with large flow velocity is small, and the pressure at the place with small flow velocity is strong, so that when the argon gas passes through the collecting cover, the collecting cover can generate suction, the generated spherical powder is sucked into the argon gas pipe to exchange heat with the argon gas, and the spherical powder after heat exchange solidification enters the collecting box to be collected uniformly, so that the spherical powder is collected more efficiently and conveniently.
Compared with the prior art, the invention has the beneficial effects that:
(1) this spherical alloy powder's preparation facilities and preparation method, through setting up a plurality of fixed pipes, when preparing, make double-deck water-cooling copper crucible rebound through elevating system, when the fixed disk slides in double-deck water-cooling copper crucible, can extrude the fuse-element in the double-deck water-cooling copper crucible, make it rise along a plurality of fixed pipes, thereby make the swiveling wheel lower extreme arrange the intraductal fuse-element liquid level in the fixed pipe in, through setting up a plurality of fixed pipes and swiveling wheel one-to-one, and the diameter of fixed pipe is less relatively, thereby can reduce the undulant range of liquid level, and simultaneously, the fluctuation mutual independence that produces when each swiveling wheel rotates, mutual noninterference, thereby make the undulant range of the intraductal fuse-element liquid level of fixed pipe littleer, thereby guarantee that the spherical powder particle diameter of preparation is more even.
(2) This spherical alloy powder's preparation facilities and preparation method, through setting up updraft ventilator mechanism etc, when preparing, start first motor, the rotation of first motor drives the rotation of pivot and swiveling wheel, meanwhile, it rotates to drive the drive pulley, the rotation of drive pulley passes through the rotation that the belt drove driven pulley and dwang, the rotation of dwang drives a plurality of fans and carries out synchronous rotation, thereby bleed through the exhaust column, and discharge through the exhaust pipe, at this moment, during the exhaust column exhaust, can produce an opposite suction to the fuse-element liquid level in the fixed tube, thereby can reduce the undulant range of liquid level, make the liquid level more steady, thereby guarantee that the spherical powder particle diameter of preparation is more even.
(3) This spherical alloy powder's preparation facilities and preparation method, through setting up control mechanism etc, when the fuse-element in the double-deck water-cooling copper crucible got into the fixed pipe gradually, the pressure that the fuse-element produced can promote the carriage release lever to remove, the removal of carriage release lever drives movable plate synchronous motion, and simultaneously, the spring shrink, and, detect the positional information of movable plate through distance sensor, when the fuse-element reaches the height of settlement, stop to rise double-deck water-cooling copper crucible through distance sensor control elevating system, and, when the liquid level in the fixed pipe was too high, can descend double-deck water-cooling copper crucible through elevating system, thereby guarantee that the fuse-element liquid level in the fixed pipe is in the height of settlement, make the spherical powder particle diameter of guaranteeing to prepare more even.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a schematic view of the internal structure of the case of the present invention;
FIG. 4 is a schematic perspective view of a mounting plate according to the present invention;
FIG. 5 is a schematic view showing the internal structure of the work box of the present invention;
FIG. 6 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 7 is an enlarged view of the structure at B in FIG. 2;
FIG. 8 is an enlarged view of the structure at C in FIG. 3;
FIG. 9 is an enlarged view of the structure of FIG. 4 at D;
FIG. 10 is an enlarged view of the structure at E in FIG. 5;
fig. 11 is an enlarged schematic view of F in fig. 8.
In the figure: 1. a support leg; 2. a lifting mechanism; 201. a first U-shaped plate; 202. fixing the rod; 203. moving the tube; 204. a threaded rod; 205. a threaded sleeve; 206. a second motor; 207. a second U-shaped plate; 3. a control mechanism; 301. a travel bar; 302. moving the plate; 303. mounting blocks; 304. a distance sensor; 4. a collection mechanism; 401. an argon pipe; 402. an electromagnetic valve; 403. a collection box; 404. a collection box; 405. a handle; 406. an air outlet pipe; 407. a through hole; 408. a filter plate; 409. a collection hood; 5. a reset mechanism; 501. a fixed block; 502. a T-shaped guide rod; 503. a spring; 6. an air draft mechanism; 601. a fixing plate; 602. a work box; 603. an exhaust pipe; 604. an exhaust duct; 605. rotating the rod; 606. rotating the fan; 7. a drive mechanism; 701. a driven pulley; 702. a drive pulley; 703. a belt; 8. a heating ring; 9. fixing grooves; 10. a bevel; 11. a box body; 12. a double-layer water-cooled copper crucible; 13. an induction coil; 14. mounting a plate; 15. a rotating shaft; 16. a rotating wheel; 17. a first motor; 18. a support plate; 19. a fixed tube; 20. a strip-shaped opening; 21. and (7) fixing the disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, the present invention provides a spherical alloy powder preparation apparatus, including a supporting leg 1, a box 11 fixedly connected to the top of the supporting leg 1, a double-layer water-cooled copper crucible 12 connected to the bottom of the box 11 through a lifting mechanism 2, an induction coil 13 fixedly installed on the outer sidewall of the double-layer water-cooled copper crucible 12, a U-shaped installation plate 14 fixedly connected to the inner sidewall of the box 11, a plurality of rotation wheels 16 arranged in an array and rotatably connected to the sidewall of the installation plate 14 through a rotation shaft 15, the rotation wheels 16 being made of 304 stainless steel, and having a Y-shaped surface2O3Or ZrO or BaZrO3Or CaZrO3Coating, the outer diameter of the rotating wheel 16 is 30-50 cm, triangular or polygonal slots are arranged at the outer edge of the rotating wheel 16, the depth of the slots is 20-100 mu m, and the number of the rotating wheel 16 is 1-up to one20, triangular or polygonal grooves are formed in the outer edge of the rotating wheel 16, the depth of each groove is 20-100 microns, the particle size of powder can be controlled, a first motor 17 is fixedly connected to the side wall of the mounting plate 14, the output end of the first motor 17 is fixed to one end of the rotating shaft 15, a supporting plate 18 is fixedly connected to the inner side wall of the box body 11, a plurality of fixing tubes 19 arranged in an array mode are fixedly inserted into the upper side wall of the supporting plate 18, strip-shaped openings 20 are formed in the side wall of each fixing tube 19, the rotating wheel 16 is inserted into each strip-shaped opening 20, the lower end of each fixing tube 19 penetrates through the lower side wall of the supporting plate 18 and is fixedly connected with a fixing disc 21, the fixing disc 21 slides on the inner side wall of the double-layer water-cooling copper crucible 12, an air draft mechanism 6 used for exhausting the melt liquid level in the fixing tubes 19 is arranged on the upper side wall of the supporting plate 18, and a control mechanism 3 used for controlling the height of the melt liquid level is arranged on the side wall of the fixing tubes 19, be provided with in the box 11 and be used for carrying out the collection mechanism 4 that collects spherical alloy powder, through setting up a plurality of fixed pipes 19 and swiveling wheel 16 one-to-one, and the diameter of fixed pipe 19 is less relatively, thereby can reduce the undulant range of liquid level, and simultaneously, the fluctuation mutually independent that produces when each swiveling wheel 16 rotates, mutual noninterference, thereby make the undulant range of fuse-element liquid level in the fixed pipe 19 littleer, and simultaneously, when swiveling wheel 16 is high-speed rotatory, can produce an opposite suction to the fuse-element liquid level in the fixed pipe 19, thereby can reduce the undulant range of liquid level, make the liquid level more steady, thereby guarantee that the spherical powder particle diameter of preparation is more even, and, can guarantee that the fuse-element liquid level in the fixed pipe 19 is at the height of settlement, make the spherical powder particle diameter of assurance preparation more even.
As shown in fig. 2 and 7, the lifting mechanism 2 includes a first U-shaped plate 201 and a second U-shaped plate 207 fixedly connected to the lower side wall of the box 11, and a fixed rod 202 is fixedly connected to the side wall of the first U-shaped plate 201, a movable tube 203 is sleeved on the side wall of the fixed rod 202, and the upper end of the movable tube 203 penetrates the bottom of the box 11 and is fixed to the bottom of the double-layer water-cooled copper crucible 12, a threaded rod 204 is rotatably connected to the side wall of the second U-shaped plate 207, a threaded sleeve 205 is threadedly connected to the side wall of the threaded rod 204, and the upper end of the threaded sleeve 205 penetrates the bottom of the box 11 and is fixed to the bottom of the double-layer water-cooled copper crucible 12, a second motor 206 is fixedly connected to the lower side wall of the second U-shaped plate 207, and the output end of the second motor 206 is fixed to the lower end of the threaded rod 204, the second motor 206 is started, the rotation of the threaded rod 204 is driven by the rotation of the second motor 206, thereby driving the threaded sleeve 205 and the movable tube 203 to lift, thereby driving the double-layer water-cooled copper crucible 12 to lift.
As shown in fig. 1, 2, 3 and 6, the collecting mechanism 4 comprises an argon pipe 401 fixedly inserted into the upper side wall of the box 11, and the side wall of the argon pipe 401 is fixedly connected with an electromagnetic valve 402, the lower end of the argon pipe 401 penetrates through the lower side wall of the box 11 and is fixedly connected with a collecting box 403, and the side wall of the argon pipe 401 is fixedly connected with a collecting cover 409 which is conically arranged, the bottom of the collecting box 403 is slidably connected with a collecting box 404, and the side wall of the collecting box 404 is fixedly connected with a handle 405, the bottom of the collecting box 404 is provided with a through hole 407, and a filter plate 408 is fixedly connected in the through hole 407, the lower side wall of the collecting box 403 is fixedly connected with an outlet pipe 406, the electromagnetic valve 402 is opened, argon enters the collecting box through the argon pipe 401 and is discharged through the outlet pipe 406, the temperature of the argon is-30 to-50 ℃, the flow rate of the argon is 1000 to 1300ml/min and is discharged through the outlet pipe 406, according to the bernoulli principle, the local pressure intensity that the velocity of flow is big is little, and the local pressure intensity that the velocity of flow is little, so can produce suction to collecting cover 409 when the argon gas passes through to spherical powder that will produce inhales in argon pipe 401 with the argon gas heat transfer, the spherical powder after the heat transfer solidifies gets into and collects in collecting box 404 and unifies the collection, makes the collection efficiency to spherical powder higher, more convenient.
As shown in fig. 5, 9 and 10, the air draft mechanism 6 includes a plurality of fixing plates 601 fixedly connected to the upper side wall of the supporting plate 18 and arranged in an array, and a work box 602 is fixedly connected to the upper end of each fixing plate 601, an air draft pipe 603 is fixedly connected to the side wall of the work box 602 close to the fixing pipe 19, and an exhaust pipe 604 is fixedly connected to the side wall of the work box 602 far from the air draft pipe 603, two symmetrically arranged fixing plates 601 are fixedly connected to the lower side wall of the mounting plate 14, and a rotating rod 605 is rotatably connected to the opposite side walls of the two fixing plates 601, the rotating rod 605 is inserted into the work box 602, and a rotating fan 606 is rotatably connected to each work box 602 through the rotating rod 605, the rotating rod 605 is driven by the driving mechanism 7, and the rotating rod 605 and the plurality of rotating fans 606 are driven by the driving mechanism 7 to rotate synchronously during preparation, so as to perform air suction through the air draft pipe 603, and the powder is discharged through the exhaust pipe 604, at this time, when the exhaust pipe 603 exhausts air, an opposite suction force is generated on the liquid level of the melt in the fixed pipe 19, so that the fluctuation range of the liquid level can be reduced, the liquid level is more stable, and the particle size of the prepared spherical powder is more uniform.
As shown in fig. 5 and 10, the driving mechanism 7 includes a driving pulley 702 fixedly connected to one end of the rotating shaft 15, one end of the rotating rod 605 penetrates through a side wall of one of the fixing plates 601 and is fixedly connected with a driven pulley 701, and the driven pulley 701 and the driving pulley 702 are driven by a belt 703, when the preparation is performed, the first motor 17 is started, the rotating shaft 15 and the rotating wheel 16 are driven by the rotation of the first motor 17, and at the same time, the driving pulley 702 is driven to rotate, and the rotation of the driving pulley 702 drives the rotation of the driven pulley 701 and the rotating rod 605 by the belt 703.
As shown in fig. 7, 8 and 11, the control mechanism 3 includes a moving rod 301 inserted into one of the fixed tubes 19, and the other end of the moving rod 301 is fixedly connected with a moving plate 302, the moving plate 302 is connected with the upper side wall of the supporting plate 18 through a reset mechanism 5, and the reset mechanism 5 is connected with a mounting block 303, the side wall of the mounting block 303 is fixedly connected with a distance sensor 304, when the melt in the double-layer water-cooled copper crucible 12 gradually enters the fixed tube 19, the pressure generated by the melt pushes the moving rod 301 to move, the moving rod 301 moves to drive the moving plate 302 to move synchronously, at the same time, a spring 503 contracts, and the distance sensor 304 detects the position information of the moving plate 302, when the melt reaches a set height, the lifting mechanism 2 is controlled by the distance sensor 304 to stop lifting the double-layer water-cooled copper crucible 12, and, when the liquid level in the fixed tube 19 is too high, the double-layer water-cooling copper crucible 12 can be descended through the lifting mechanism 2, so that the liquid level of the melt in the fixed pipe 19 is ensured to be at the set height, and the grain diameter of the prepared spherical powder is ensured to be more uniform.
As shown in fig. 11, the reset mechanism 5 includes two symmetrically disposed fixed blocks 501 fixedly connected to the upper side wall of the supporting plate 18, a T-shaped guide rod 502 is inserted into the side wall of each fixed block 501, one end of the T-shaped guide rod 502 is fixed to the side wall of the moving plate 302, and a spring 503 is sleeved on the side wall of each T-shaped guide rod 502 to guide and reset the movement of the moving plate 302.
As shown in fig. 8, a heating ring 8 is fixedly connected to a side wall of each fixed tube 19 to heat the melt in the fixed tube 19 and prevent the melt from cooling.
As shown in fig. 4 and 9, two symmetrically arranged fixing grooves 9 are fixedly connected to the side wall of each strip-shaped opening 20, and each fixing groove 9 comprises an inclined surface 10, so that when the melt liquid level in the fixing pipe 19 is too high, the melt liquid level can enter the fixing groove 9 for temporary storage, and the melt liquid level in the fixing pipe 19 is more accurate.
The invention also provides a preparation method of the spherical alloy powder, which comprises the following steps:
s1, starting the second motor 206, wherein the rotation of the second motor 206 drives the rotation of the threaded rod 204, thereby driving the threaded sleeve 205 and the movable tube 203 to lift, and further driving the double-layer water-cooled copper crucible 12 to lift;
s2, starting the first motor 17, and driving the rotating shaft 15 and the rotating wheel 16 to rotate by the rotation of the first motor 17;
s3, when the fixed disk 21 slides in the double-layer water-cooled copper crucible 12, the melt in the double-layer water-cooled copper crucible 12 is extruded and rises along the plurality of fixed tubes 19, so that the lower end of the rotating wheel 16 is arranged below the melt liquid level in the fixed tubes 19, the plurality of fixed tubes 19 are arranged in one-to-one correspondence with the rotating wheel 16, and the diameters of the fixed tubes 19 are relatively small, so that the fluctuation range of the liquid level can be reduced;
s4: when the melt in the double-layer water-cooled copper crucible 12 gradually enters the fixed tube 19, the pressure generated by the melt pushes the moving rod 301 to move, the moving rod 301 moves to drive the moving plate 302 to move synchronously, and simultaneously, the spring 503 contracts, and, the position information of the moving plate 302 is detected by the distance sensor 304, when the melt reaches the set height, the lifting mechanism 2 is controlled by the distance sensor 304 to stop lifting the double-layer water-cooled copper crucible 12, when the liquid level in the fixed pipe 19 is too high, the double-layer water-cooled copper crucible 12 can be lowered by the elevating mechanism 2, thereby ensuring that the liquid level of the melt in the fixed pipe 19 is at the set height, ensuring that the liquid level is constant, namely, the melt quantity in the grooves at the outer edge of the rotating wheel 16 is more uniform in the rotating process of the rotating wheel 16, so that the particle size of the prepared spherical powder is more uniform;
s5, when the rotating shaft 15 rotates, the driving belt pulley 702 is driven to rotate, the driving belt pulley 702 rotates to drive the driven belt pulley 701 and the rotating rod 605 to rotate through the belt 703, the rotating rod 605 rotates to drive the rotating fans 606 to synchronously rotate, so that air is extracted through the air extraction pipe 603 and is exhausted through the exhaust pipe 604, because the rotating wheel 16 rotates, forward thrust is provided for the melt in the tangential direction of the rotating wheel 16, the thrust can cause the liquid level to fluctuate, and at the moment, when air is extracted through the air extraction pipe 603, suction opposite to the tangential thrust of the rotating wheel 16 is generated on the melt liquid level in the fixed pipe 19, so that the fluctuation range of the liquid level can be reduced, the liquid level is more stable, and the particle size of the prepared spherical powder is more uniform;
s6, when the rotating wheel 16 rotates, the molten drop flies out along the parabola under the action of centrifugal force;
s7, at the same time, the electromagnetic valve 402 is opened, argon is introduced through the argon pipe 401, according to Bernoulli' S principle, the pressure at the place with large flow velocity is small, and the pressure at the place with small flow velocity is strong, so when the argon passes through the collecting cover 409, the collecting cover 409 can generate suction, the generated spherical powder is sucked into the argon pipe 401 to exchange heat with the argon, the spherical powder after heat exchange and solidification enters the collecting box 404 to be collected uniformly, and the spherical powder is collected more efficiently and more conveniently.
Claims (10)
1. The utility model provides a preparation facilities of spherical alloy powder, includes landing leg (1), the top fixedly connected with box (11) of landing leg (1), its characterized in that: the bottom of the box body (11) is connected with a double-layer water-cooling copper crucible (12) through a lifting mechanism (2), the outer side wall of the double-layer water-cooling copper crucible (12) is fixedly sleeved with an induction coil (13), the inner side wall of the box body (11) is fixedly connected with a mounting plate (14) with a U-shaped arrangement, the side wall of the mounting plate (14) is rotatably connected with a rotating wheel (16) with a plurality of array arrangements through a rotating shaft (15), the side wall of the mounting plate (14) is fixedly connected with a first motor (17), the output end of the first motor (17) is fixed with one end of the rotating shaft (15), the inner side wall of the box body (11) is fixedly connected with a support plate (18), the upper side wall of the support plate (18) is fixedly inserted with a plurality of fixed tubes (19) with the array arrangements, strip-shaped openings (20) are arranged on the side wall of each fixed tube (19), and the rotating wheel (16) is inserted in the strip-shaped openings (20), the lower extreme of fixed pipe (19) runs through the lower lateral wall and fixedly connected with fixed disk (21) of backup pad (18), and fixed disk (21) slides at the inside wall of double-deck water-cooling copper crucible (12), the last lateral wall of backup pad (18) is provided with and is used for carrying out convulsions to fixed pipe (19) interior fuse-element liquid level air drafting mechanism (6), and the lateral wall of fixed pipe (19) is provided with and is used for controlling control mechanism (3) of fuse-element liquid level height, be provided with in box (11) and be used for carrying out collection mechanism (4) of collecting to spherical alloy powder.
2. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the lifting mechanism (2) comprises a first U-shaped plate (201) and a second U-shaped plate (207) which are fixedly connected with the lower side wall of the box body (11) and are symmetrically arranged, a fixed rod (202) is fixedly connected with the side wall of the first U-shaped plate (201), a movable pipe (203) is sleeved on the side wall of the fixed rod (202), the upper end of the movable pipe (203) penetrates through the bottom of the box body (11) and is fixed with the bottom of the double-layer water-cooled copper crucible (12), the side wall of the second U-shaped plate (207) is rotatably connected with a threaded rod (204), the side wall of the threaded rod (204) is in threaded connection with a threaded sleeve (205), the upper end of the thread sleeve (205) penetrates through the bottom of the box body (11) and is fixed with the bottom of the double-layer water-cooled copper crucible (12), the lower side wall of the second U-shaped plate (207) is fixedly connected with a second motor (206), and the output end of the second motor (206) is fixed with the lower end of the threaded rod (204).
3. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: collect mechanism (4) including fixed inserting establish on box (11) side wall argon pipe (401), and the lateral wall fixedly connected with solenoid valve (402) of argon pipe (401), the lower extreme of argon pipe (401) runs through lower lateral wall and fixedly connected with collecting box (403) of box (11), and collection cover (409) that the lateral wall fixedly connected with toper of argon pipe (401) set up, the bottom sliding connection of collecting box (403) has collection box (404), and collects lateral wall fixedly connected with handle (405) of box (404), through-hole (407) have been seted up to the bottom of collecting box (404), and fixedly connected with filter (408) in through-hole (407), the lower lateral wall fixedly connected with outlet duct (406) of collecting box (403).
4. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: air drafting mechanism (6) include fixed plate (601) that a plurality of arrays of fixed connection lateral wall set up on backup pad (18), and upper end fixedly connected with work box (602) of each fixed plate (601), work box (602) are close to lateral wall fixedly connected with exhaust column (603) of fixed pipe (19), and work box (602) keep away from the lateral wall fixedly connected with exhaust pipe (604) of exhaust column (603), fixed plate (601) that two symmetries of lower lateral wall fixedly connected with of mounting panel (14) set up, and two relative lateral walls of fixed plate (601) rotate and are connected with dwang (605), dwang (605) are inserted and are established in work box (602), and rotate through dwang (605) in each work box (602) and are connected with and change fan (606), the rotation of dwang (605) drives through actuating mechanism (7).
5. The apparatus for preparing a spherical alloy powder according to claim 4, wherein: the driving mechanism (7) comprises a driving belt pulley (702) fixedly connected to one end of the rotating shaft (15), one end of the rotating rod (605) penetrates through the side wall of one fixing plate (601) and is fixedly connected with a driven belt pulley (701), and the driven belt pulley (701) and the driving belt pulley (702) are driven through a belt (703).
6. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the control mechanism (3) comprises a moving rod (301) inserted into the side wall of one of the fixed pipes (19), the other end of the moving rod (301) is fixedly connected with a moving plate (302), the moving plate (302) is connected with the upper side wall of the supporting plate (18) through a reset mechanism (5), the reset mechanism (5) is connected with an installation block (303), and the side wall of the installation block (303) is fixedly connected with a distance sensor (304).
7. The apparatus for preparing a spherical alloy powder according to claim 6, wherein: the reset mechanism (5) comprises two symmetrically-arranged fixing blocks (501) fixedly connected to the upper side wall of the supporting plate (18), a T-shaped guide rod (502) is inserted into the side wall of each fixing block (501), one end of each T-shaped guide rod (502) is fixed to the side wall of the moving plate (302), and a spring (503) is sleeved on the side wall of each T-shaped guide rod (502).
8. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: the side wall of each fixed pipe (19) is fixedly connected with a heating ring (8).
9. The apparatus for preparing a spherical alloy powder according to claim 1, wherein: each lateral wall fixedly connected with two fixed slots (9) that the symmetry set up of bar opening (20), and fixed slot (9) include inclined plane (10).
10. A method for preparing spherical alloy powder is characterized in that: the method comprises the following steps:
s1, starting a second motor (206), wherein the rotation of the second motor (206) drives a threaded rod (204) to rotate, so as to drive a threaded sleeve (205) and a moving pipe (203) to lift, and further drive a double-layer water-cooled copper crucible (12) to lift;
s2, starting the first motor (17), wherein the rotation of the first motor (17) drives the rotation shaft (15) and the rotating wheel (16) to rotate;
s3, when the fixed disk (21) slides in the double-layer water-cooled copper crucible (12), the melt in the double-layer water-cooled copper crucible (12) is extruded and rises along a plurality of fixed tubes (19), so that the lower end of the rotating wheel (16) is arranged below the melt liquid level in the fixed tubes (19), the fixed tubes (19) and the rotating wheel (16) are arranged in a one-to-one correspondence manner, the diameter of the fixed tubes (19) is relatively small, the fluctuation range of the liquid level can be reduced, meanwhile, the fluctuation generated when the rotating wheel (16) rotates are mutually independent and do not interfere with each other, the fluctuation range of the liquid level of the melt in the fixed tubes (19) is smaller, and the particle size of the prepared spherical powder is more uniform;
s4, when the melt in the double-layer water-cooled copper crucible (12) gradually enters the fixed tube (19), the pressure generated by the melt can push the moving rod (301) to move, the moving rod (301) moves to drive the moving plate (302) to move synchronously, meanwhile, the spring (503) contracts, the position information of the moving plate (302) is detected through the distance sensor (304), when the melt reaches the set height, the lifting mechanism (2) is controlled through the distance sensor (304) to stop lifting the double-layer water-cooled copper crucible (12), and when the liquid level in the fixed tube (19) is overhigh, the lifting mechanism (2) can be used for descending the double-layer water-cooled copper crucible (12), so that the liquid level of the melt in the fixed tube (19) is ensured to be at the set height, and the particle size of the prepared spherical powder is ensured to be more uniform;
s5, when the rotating shaft (15) rotates, the driving belt pulley (702) is driven to rotate, the driving belt pulley (702) rotates to drive the driven belt pulley (701) and the rotating rod (605) to rotate through the belt (703), the rotating rod (605) rotates to drive the rotating fans (606) to synchronously rotate, so that air is pumped through the air exhaust pipe (603), and the air is exhausted through the exhaust pipe (604), at the moment, when the air exhaust pipe (603) exhausts air, opposite suction is generated on the melt liquid level in the fixed pipe (19), so that the fluctuation range of the liquid level can be reduced, the liquid level is more stable, and the particle size of the prepared spherical powder is more uniform;
s6, when the rotating wheel (16) rotates, the molten drops fly out along a parabola under the action of centrifugal force;
and S7, simultaneously, when argon passes through, suction is generated on the collecting cover (409), so that the generated spherical powder is sucked into the argon pipe (401) to exchange heat with the argon, and the spherical powder after heat exchange and solidification enters the collecting box (404) to be collected uniformly.
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