CN107234245A - The equipment that a kind of use bar continuous feed produces spherical powder - Google Patents
The equipment that a kind of use bar continuous feed produces spherical powder Download PDFInfo
- Publication number
- CN107234245A CN107234245A CN201710688149.7A CN201710688149A CN107234245A CN 107234245 A CN107234245 A CN 107234245A CN 201710688149 A CN201710688149 A CN 201710688149A CN 107234245 A CN107234245 A CN 107234245A
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- Prior art keywords
- raw material
- rod
- transition
- melts
- guider
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- Pending
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- 239000000843 powder Substances 0.000 title claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 143
- 230000007704 transition Effects 0.000 claims abstract description 87
- 238000006073 displacement reaction Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 19
- 230000008018 melting Effects 0.000 claims abstract description 19
- 239000000155 melt Substances 0.000 claims description 68
- 230000007423 decrease Effects 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000000889 atomisation Methods 0.000 abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 35
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 33
- 229910052721 tungsten Inorganic materials 0.000 description 30
- 239000010937 tungsten Substances 0.000 description 30
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000003723 Smelting Methods 0.000 description 7
- 239000010936 titanium Substances 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 238000012387 aerosolization Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- 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
- B22F2009/0836—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 with electric or magnetic field or induction
-
- 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
- B22F2009/0848—Melting process before atomisation
Abstract
The equipment that a kind of use bar continuous feed produces spherical powder, including main shaft, vacuum cavity, automatic clamping chuck, automatic material catching apparatus, raw material melt rod, connection guider, transition guider, linear actuator, linear guide device, heater, raw material and melt rod disk, atomizer；The spindle mounted is in vacuum cavity upper end；The vacuum cavity includes main operating room, transition door, displacement door, transition chamber, displacement room, main operating room side sets transition chamber, transition door, displacement room, displacement door successively, in transition chamber rod disk is melted provided with raw material, main shaft lower end is provided with automatic clamping chuck, and automatic material catching apparatus is set on the wall of raw material Rong Bang disk center position in main operating room.The present invention is without using melting kettle, and property is active or dystectic raw material can heat fusing under the conditions of contactless, is atomized into powder, and bar continuous feed is used, continuous atomization, atomization gas loss is small, the production capacity and purity of globular metallic powder can be improved, production cost is reduced.
Description
Technical field
It is more particularly to a kind of to use bar continuous feed mode the present invention relates to a kind of equipment for preparing globular metallic powder
The equipment for producing globular metallic powder.
Background technology
At present, the preparation of globular metallic powder mainly uses crucible for smelting aerosolization technology and rotation electrode induction melting gas
Atomization technique.Wherein, crucible for smelting aerosolization technology is to be smelted into metal after molten metal in crucible, with high velocity air by liquid
State metal stream is broken into droplet and is frozen into powder, but during crucible for smelting aerosolizing device melting material, material directly with
Crucible is contacted, it is impossible to produce the active metals such as titanium.Rotation electrode induction melting aerosolization technology is that the rotation of alloy bar is vertical
Melting is carried out in feeding induction coil, without crucible for smelting, active metal can be produced, and the powder purity of production is high, but because
To be unable between continuous feed, batch need switching of reloading, cause continuously to be atomized, atomization gas loss is larger, so as to produce
Can be smaller, production cost is higher.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art to use bar continuous feed there is provided one kind
The equipment for producing spherical powder, the equipment can produce active metal and the high-melting-point of high-purity（Refer generally to fusing point for 2000 DEG C
More than）Metal dust, and can continuous feed, continuous atomization, atomization gas loss is small, can improve spherical active metal and height
The production capacity and purity of melting point metals powder, reduce production cost.
The present invention solve its technical problem use technical scheme be：
The equipment that a kind of use bar continuous feed produces spherical powder, including main shaft, vacuum cavity, automatic clamping chuck, grab automatically
Expect that device, raw material melt rod（It is a part for pending raw produce, not equipment, the course of work, is increased to for convenience of explanation
Herein）, connection guider, transition guider, linear actuator, linear guide device, heater, raw material melt rod disk, atomizer
Deng；The spindle mounted is in vacuum cavity upper end（It is preferred that dynamic sealing assembly method）, can do and rotate and elevating movement；It is described true
Cavity body includes main operating room, transition door, displacement door, transition chamber, displacement room, and main operating room side sets transition chamber, transition successively
Door, displacement room, displacement door, melt rod disk in transition chamber provided with raw material, and main shaft lower end is provided with automatic clamping chuck, main operating room perpendicular to
Automatic material catching apparatus is set on the wall of raw material Rong Bang disk center position（By controlling automatic clamping chuck and automatic material catching apparatus can be real
Existing raw material melts the gripping and release of rod）, raw material, which melts, is sequentially provided with connection guider, transition guider, straight line below the position of rod
Atomizer is provided with below driver, linear guide device, heater, heater.
It is preferred that, heater can use induction coil heating apparatus or plasma heating device.
It is preferred that, connection guider (5), transition guider (6), linear actuator (7), (8) four portions of linear guide device
Part is made up of at least three rollers respectively, and the roller of all parts is melting rod with raw material（4）It is uniformly distributed, rolls in vertical plane
The tangent line of wheel is parallel with the molten rod of raw material and melts rod against raw material.Rod is melted in rotation fixation and transferring raw material by roller, drives
Bar is fed.
The course of work：
1. internal thread is processed into the upper end that raw material melts rod, the external screw thread matched with upper end internal thread is processed into lower end；
2. the molten rod disk of raw material is filled to the raw material processed and melts rod, is put into transition chamber, closes transition door；
3. after vacuum cavity is vacuumized, automatic material catching apparatus melts rod to automatic clamping chuck underface from transition chamber crawl raw material, leads to
The rotation and descending motion of main shaft are crossed, automatic clamping chuck, which touches raw material and melts rod upper end and firmly grasp raw material automatically, melts rod, automatic material grasping
Device unclamps raw material and melts rod, and main shaft continues to rotate and declined, until raw material melts, rod lower end passes sequentially through connection guider and transition is led
To after device, automatic clamping chuck unclamps raw material and melts rod, and main shaft retracts rapidly home position；
4. raw material melts rod and continues to feed downwards under the driving of connection guider and transition guider, the sense on connection guider
Device is answered to sense that first raw material melts rod end and have already passed through connection guider, automatic material catching apparatus can capture the another of transition chamber
The molten rod of root raw material does rotation descending motion to automatic clamping chuck underface, then main shaft, and automatic clamping chuck touches raw material and melts rod upper end
And the molten rod of raw material is firmly grasped automatically, automatic material catching apparatus unclamps raw material and melts rod, and main shaft continues to rotate decline, and decrease speed is more than first
The charging rate of root raw material, until the lower end that another raw material melts rod, which touches first raw material, melts rod upper end, in the rotation of main shaft
Turn with descending motion effect, internal thread and external screw thread are locked to be formed and be integrally changed into the molten rod of a raw material, and automatic clamping chuck unclamps another
A piece raw material melts rod, and main shaft retracts rapidly home position, and first raw material melts rod and drive the molten rod of second raw material to be driven by straight line
Dynamic device and linear guide device continue downward conveying, and raw material melts rod and melted by being heated after heater, the droplets of feed of melting or
Person's liquid stream vertically falls into the atomizer of underface and is atomized, and is then collected, sieves or be classified, and packs；
When 5. repeating the 4. step to last root raw material of transition chamber melting rod to immediately below automatic clamping chuck, by the molten rod of new raw material
Disk loads displacement room, closes displacement door, will replace the vacuum that room is evacuated to as main operating room, then automatically opens up transition
Door, the raw material of transition chamber melts the molten rod disk station of the raw material of rod disk and displacement room and switched rapidly, is then shut off transition door, will replace room
In raw material melt rod disk and fill, close displacement door, room will be replaced and be evacuated to vacuum as main operating room, wait next time former
The molten rod disk switching of material；
6. raw material is melted after the switching of rod disk in transition chamber and displacement room, continue to repeat the 4. with the 5. step, until production terminates.
The present invention can be melted rod by continuous conveying raw material and realize continuous atomization.
The beneficial effects of the invention are as follows without using melting kettle, the active raw material of property and dystectic raw material can
To heat fusing under the conditions of contactless, powder is atomized into, and uses bar continuous feed, continuous atomization, atomization gas is damaged
Mistake is small, can improve the production capacity and purity of globular metallic powder, reduces production cost.
Brief description of the drawings
Fig. 1 is the schematic diagram of the equipment using bar continuous feed production spherical powder of the present invention.
Fig. 2 is to connect the top view that guider and the molten rod of raw material coordinate.
In figure：1. main shaft, 2. vacuum cavities, the 2 main operating rooms of ＇, 3. automatic clamping chucks, the 3 automatic material catching apparatus of ＇, 4. raw materials
Molten rod, 5. connection guiders, 6. transition guiders, 7. linear actuators, 8. linear guide devices, 9. heaters, 10. transition
Door, 11. displacement doors, 12. raw materials melt rod disk, 13. transition chambers, 14. displacement rooms, 15. atomizers.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
The equipment that the use bar continuous feed of the present embodiment produces spherical powder, including main shaft 1, vacuum cavity 2, automatic clamping chuck
3rd, the automatic ＇ of material catching apparatus 3, raw material melt rod 4（It is a part for pending raw produce, not equipment, works for convenience of explanation
Process, is increased to herein）, it is connection guider 5, transition guider 6, linear actuator 7, linear guide device 8, heater 9, former
The molten rod disk 12 of material, atomizer 15；The main shaft 1 is assemblied in the top of vacuum cavity 2（From dynamic sealing assembly method）, can do and rotate
And elevating movement；The vacuum cavity 2 includes the main ＇ of operating room 2, and transition door 10 replaces door 11, and transition chamber 13 replaces room 14,
The main ＇ sides of operating room 2 set molten provided with raw material in transition chamber 13, transition door 10, displacement room 14, displacement door 11, transition chamber 13 successively
Rod disk 12, the lower end of main shaft 1 is provided with automatic clamping chuck 3, melts and is set on the wall of the center of rod disk 12 perpendicular to raw material in the main ＇ of operating room 2
Put the automatic ＇ of material catching apparatus 3（By controlling automatic clamping chuck 3 and the ＇ of automatic material catching apparatus 3 to realize, raw material melts gripping and the pine of rod
Open）, raw material, which melts, is sequentially provided with connection guider 5, transition guider 6, linear actuator 7, linear guide device below the position of rod 4
8th, heater 9, the lower section of heater 9 is provided with atomizer 15.
Rod can be melted by continuous conveying raw material and realizes continuous atomization.
Heater 9 can use induction coil heating apparatus or plasma heating device.
Guider 5, transition guider 6, linear actuator 7,8 four parts of linear guide device are connected respectively by least three
Roller is constituted, and the roller of all parts is uniformly distributed in the plane vertical with the molten rod 4 of raw material, and tangent line and the raw material of roller melt rod
It is parallel and against raw material melt rod.Rod is melted in rotation fixation and transferring raw material by wheel, drives bar charging.
The course of work：
1. internal thread is processed into the upper end that raw material melts rod 4, the external screw thread matched with upper end internal thread is processed into lower end；
2. the molten rod disk 12 of raw material is filled to the raw material processed and melts rod, is put into transition chamber 13, closes transition door 10；
3. after vacuum cavity 2 is vacuumized, the automatic ＇ of material catching apparatus 3 from transition chamber 13 crawl raw material melt rod 4 to automatic clamping chuck 3 just
Lower section, by the rotation and descending motion of main shaft 1, automatic clamping chuck 3, which touches raw material and melts the upper end of rod 4 and firmly grasp raw material automatically, melts rod
4, the automatic ＇ of material catching apparatus 3 unclamp raw material and melt rod 4, and main shaft 1 continues to rotate and declined, until raw material, which melts the lower end of rod 4, passes sequentially through connection
After guider 5 and transition guider 6, automatic clamping chuck 3 unclamps raw material and melts rod 4, and main shaft 1 retracts home position rapidly；
4. raw material melts rod 4 and continues to feed downwards under the driving of connection guider 5 and transition guider 6, when on connection guider 5
Inductor sense that first raw material melts rod end and have already passed through connection guider 5, the automatic ＇ of material catching apparatus 3 can capture transition
Another raw material of room 13 melts rod to the underface of automatic clamping chuck 3, and then main shaft 1 does rotation descending motion, and automatic clamping chuck 3 is touched
Raw material, which melts rod upper end and firmly grasps raw material automatically, melts rod, and the automatic ＇ of material catching apparatus 3 unclamps raw material and melts rod, and main shaft 1 continues to rotate and declined,
Decrease speed is more than the charging rate of first raw material, until the lower end that another raw material melts rod, which touches first raw material, melts rod
Upper end, under rotation and the descending motion effect of main shaft, internal thread and external screw thread are locked to be formed and are integrally changed into the molten rod of a raw material,
Automatic clamping chuck 3 unclamps another raw material and melts rod, and main shaft 1 retracts rapidly home position, and first raw material melts rod 4 and drive second original
The molten rod of material continues downward conveying by linear actuator 7 and linear guide device 8, and it is molten by being heated after heater 9 that raw material melts rod
Change, the droplets of feed or liquid stream of melting, which are vertically fallen into the atomizer 15 of underface, to be atomized, and is then collected, is sieved
Or classification, packaging；
When 5. repeating the 4. step to last root raw material of transition chamber 13 melting rod to 3 underface of automatic clamping chuck, by new raw material
Molten rod disk loading displacement room 14, closes displacement door 11, will replace the vacuum that room 14 is evacuated to as the main ＇ of operating room 2, then certainly
Dynamic to open transition door 10, the molten rod disk of raw material of transition chamber 13 and the raw material of displacement room 14 melt rod disk station and switched rapidly, Ran Houguan
Transition door 10 is closed, the raw material replaced in room 14 is melted into rod disk is filled, and closes displacement door 11, and displacement room 14 is evacuated to and main operating room
Vacuum the same 2 ＇, waits the molten rod disk switching of raw material next time；
6. raw material is melted after the switching of rod disk in transition chamber 13 and displacement room 14, continue to repeat the 4. with the 5. step, until production knot
Beam.
Example 2 below and embodiment 3 are the specific Application Example using the equipment of embodiment 1.
Embodiment 2
The present embodiment comprises the following steps：
1. by diameter 40mm, M24*1.5 internal thread, lower end processing are processed into the upper end of the length 1m molten rod pure titanium rod 4 of raw material
Into M24*1.5 external screw thread, internal thread and external screw thread can cooperate and tighten；
2. raw material is melted into the molten rod pure titanium rod of raw material that rod disk 12 fills above-mentioned specification, is put into transition chamber 13, closes transition door 10；
3. vacuum cavity 2 is evacuated to after 10Pa, the automatic ＇ of material catching apparatus 3 from the crawl raw material of transition chamber 13 melt rod pure titanium rod 4 to
After inductor on the underface of automatic clamping chuck 3, main shaft 1 senses that pure titanium rod 4 has been reached immediately below automatic clamping chuck 3, main shaft 1 with
10mm/s speed rotation declines, and automatic clamping chuck 3, which touches raw material and melts the upper end of rod pure titanium rod 4 and firmly grasp raw material automatically, melts the pure titanium of rod
Rod 4, while the automatic ＇ of material catching apparatus 3, which unclamps raw material, melts rod pure titanium rod 4, main shaft 1 is continued to be rotated with 10mm/s speed and declined, directly
The lower end of rod pure titanium rod 4 is melted to raw material and passes sequentially through connection guider 5 and transition guider 6, and automatic clamping chuck 3 unclamps rapidly raw material and melted
Rod pure titanium rod 4, main shaft 1 retracts home position with 20mm/s speed；
4. raw material melts rod pure titanium rod 4 and continues to feed downwards under the driving of connection guider 5 and transition guider 6, controls pure titanium
The speed that rod 4 is fed is 3mm/s, when the inductor on connection guider 5 senses that first pure titanium rod end has already passed through company
Connect guider 5, another pure titanium rod of the automatic ＇ of material catching apparatus 3 crawls transition chamber 13 to the underface of automatic clamping chuck 3, then main shaft 1
Rotation descending motion is done with 10mm/s speed, automatic clamping chuck 3 touches another pure titanium rod upper end and firmly grasps the pure titanium automatically
Rod, the automatic ＇ of material catching apparatus 3 unclamps the pure titanium rod, and main shaft 1 continues to be more than first with 10mm/s speed decline, decrease speed
The charging rate 3mm/s of pure titanium rod, until the lower end of another pure titanium rod touches the upper end of first pure titanium rod 4, in main shaft
Rotation and descending motion effect under, internal thread and external screw thread are locked to be formed and are integrally changed into a pure titanium rod, and automatic clamping chuck 3 unclamps
Another pure titanium rod, main shaft 1 retracts home position with 20mm/s speed, and first pure titanium rod 4 drives second pure titanium rod to lead to
Cross linear actuator 7 and linear guide device 8 and downward conveying is continued with 3mm speed, pure titanium rod passes through induction coil heating apparatus 9
Heating fusing, the droplets of feed or liquid stream of melting, which are vertically fallen into the atomizer 15 of underface, to be atomized, and is then received
Collection, screening or classification, packaging；
5. repeat 4. step to transition chamber 13 last root pure titanium rod to 3 underface of automatic clamping chuck when, by new pure titanium rod
Disk loading displacement room 14, closes displacement door 11, will replace the vacuum 10Pa that room 14 is evacuated to as the main ＇ of operating room 2, then certainly
Dynamic to open transition door 10, the pure titanium rod disk of transition chamber 13 and the pure titanium rod disk station of displacement room 14 switch rapidly, were then shut off
Door 10 is crossed, the pure titanium rod disk replaced in room 14 is filled, displacement door 11 is closed, displacement room 14 is evacuated to as the main ＇ of operating room 2
Vacuum 10Pa, wait next time raw material melt the switching of rod disk；
6. raw material is melted after the switching of rod disk in transition chamber 13 and displacement room 14, continue to repeat the 4. with the 5. step until production is tied
Beam.
By analysis and data statistics, the production capacity of spherical pure titanium valve can reach more than 60Kg/H, by controlling pure titanium rod
Diameter and charging rate, can adjust the production capacity of titanium valve, and the pure titanium powder impurity content produced is less than 1500PPM, in phase
With in the production time, with comparing for batch rotation electrode induction melting aerosolization, production capacity increases more than three times, saves atomization gas
Body more than 50%；Compared with the pure titanium powder impurity content that crucible for smelting aerosolizing device is produced, impurity reduce 80% with
On.
Embodiment 3
The present embodiment comprises the following steps：
1. diameter 20mm, length 1m tungsten bar 4 upper end be processed into M10*1 internal thread, M10*1 outer spiral shell is processed into lower end
Line, internal thread and external screw thread can cooperate and tighten；
2. raw material is melted into the tungsten bar that rod disk 12 fills above-mentioned specification, is put into transition chamber 13, close transition door 10；
3. vacuum cavity 2 is evacuated to after 10Pa, the automatic ＇ of material catching apparatus 3 captures tungsten bar 4 to automatic clamping chuck 3 from transition chamber 13
Underface, after the inductor on main shaft 1 senses that tungsten bar 4 has been reached immediately below automatic clamping chuck 3, main shaft 1 is with 10mm/s speed
Degree rotation declines, and automatic clamping chuck 3 touches the upper end of tungsten bar 4 and firmly grasps tungsten bar 4 automatically, while the automatic ＇ of material catching apparatus 3 unclamps tungsten bar
4, main shaft 1 continues to continue to rotate with 10mm/s speed to decline, until the lower end of tungsten bar 4 passes sequentially through connection guider 5 and transition
Guider 6, automatic clamping chuck 3 unclamps rapidly tungsten bar 4, and main shaft 1 retracts home position with 20mm/s speed；
4. tungsten bar 4 continues charging downwards, the speed that control tungsten bar 4 is fed under the driving of connection guider 5 and transition guider 6
For 3mm/s, when the inductor on connection guider 5 senses that first tungsten bar end has already passed through connection guider 5, grab automatically
Another tungsten bar of the ＇ of device 3 crawl transition chambers 13 is expected to the underface of automatic clamping chuck 3, and then main shaft 1 is done with 10mm/s speed and revolved
Turn descending motion, automatic clamping chuck 3 touches another tungsten bar upper end and firmly grasps the tungsten bar automatically, and the automatic ＇ of material catching apparatus 3 unclamps should
Tungsten bar, main shaft 1 continues to be more than the charging rate 3mm/s of first tungsten bar with 10mm/s speed decline, decrease speed, until another
The lower end of a piece tungsten bar touches the upper end of first tungsten bar 4, under rotation and the descending motion effect of main shaft, internal thread and outer
Screw-threaded coupling forms and is integrally changed into a tungsten bar, and automatic clamping chuck 3 unclamps another tungsten bar, and main shaft 1 is retracted with 20mm/s speed
Home position, first tungsten bar 4 drive second tungsten bar by linear actuator 7 and linear guide device 8 with 3mm/s speed after
Continuous conveying downwards, tungsten bar is heated by plasma heating device 9 to be melted, under the droplets of feed or liquid stream of melting are vertically fallen into just
It is atomized in the atomizer 15 of side, is then collected, sieves or be classified, is packed；
5. repeat the 4. step to transition chamber 13 last root tungsten bar to 3 underface of automatic clamping chuck when, new tungsten bar disk is filled
Enter to replace room 14, close displacement door 11, the vacuum 10Pa that room 14 is evacuated to as the main ＇ of operating room 2 will be replaced, then beaten automatically
Transition door 10 is opened, the raw material of transition chamber 13 melts rod disk-tungsten bar disk and the tungsten bar disk station of displacement room 14 switches rapidly, is then shut off
Transition door 10, the tungsten bar disk replaced in room 14 is filled, and closes displacement door 11, and displacement room 14 is evacuated to as the main ＇ of operating room 2
Vacuum 10Pa, wait next time raw material melt the switching of rod disk；
6. raw material is melted after the switching of rod disk in transition chamber 13 and displacement room 14, continue to repeat the 4. with the 5. step until production is tied
Beam.
By analysis and data statistics, the production capacity of globular tungsten powder can reach more than 65Kg/H, by the diameter for controlling tungsten bar
And charging rate, the production capacity of tungsten powder can be adjusted, the globular tungsten powder impurity content produced is less than 1000PPM, in identical life
In the production time, with comparing for batch rotation electrode induction melting aerosolization, production capacity increases more than three times, saves atomization gas
More than 50%；And crucible for smelting aerosolizing device is limited to the heating-up temperature of smelting equipment, it is impossible to produce the so dystectic powder of tungsten powder
End.
Claims (5)
1. the equipment that a kind of use bar continuous feed produces spherical powder, it is characterised in that including main shaft (1), vacuum cavity
(2), automatic clamping chuck (3), automatic material catching apparatus (3 ＇), raw material melt rod (4), connection guider (5), transition guider (6), straight line
Driver (7), linear guide device (8), heater (9), raw material melt rod disk (12), atomizer (15)；Main shaft (1) assembling
In vacuum cavity (2) upper end；The vacuum cavity (2) includes main operating room (2 ＇), transition door (10), displacement door (11), transition
Room (13), displacement room (14), main operating room (2 ＇) side set transition chamber (13), transition door (10), displacement room (14), displacement successively
Rod disk (12) is melted provided with raw material in door (11), transition chamber (13), main shaft (1) lower end is provided with automatic clamping chuck (3), in main operating room
(2 ＇) melts perpendicular to raw material sets automatic material catching apparatus (3 ＇) on the wall of rod disk (12) center, and raw material melts the position of rod (4)
Lower section is sequentially provided with connection guider (5), transition guider (6), linear actuator (7), linear guide device (8), heater
(9) atomizer (15), is provided with below heater (9).
2. the equipment that use bar continuous feed according to claim 1 produces spherical powder, it is characterised in that the master
Axle (1) is assemblied in vacuum cavity (2) upper end using dynamic sealing assembly method.
3. the equipment that use bar continuous feed according to claim 1 or 2 produces spherical powder, it is characterised in that institute
State heater (9) and use induction coil heating apparatus or plasma heating device.
4. the equipment that use bar continuous feed according to claim 1 or 2 produces spherical powder, it is characterised in that even
Guider (5), transition guider (6), linear actuator (7), (8) four parts of linear guide device are connect respectively by least three rollings
Wheel composition, the roller of all parts is melting rod with raw material（4）It is uniformly distributed in vertical plane, tangent line and the raw material of roller melt rod
（4）It is parallel and against raw material melt rod（4）.
5. the application of the equipment of the use bar continuous feed production spherical powder as described in one of claim 1-4, i.e. its work
Make process, it is characterised in that comprise the following steps：
1. internal thread is processed into the upper end that raw material melts rod (4), the external screw thread matched with upper end internal thread is processed into lower end；
2. the molten rod disk (12) of raw material is filled to the raw material processed and melts rod, is put into transition chamber (13), closes transition door (10)；
3. after vacuum cavity (2) is vacuumized, automatic material catching apparatus (3 ＇) melts rod (4) to automatically from transition chamber (13) crawl raw material
Immediately below chuck (3), by the rotation and descending motion of main shaft (1), automatic clamping chuck (3) touches raw material and melts rod (4) upper end simultaneously
Automatically promptly raw material melts rod (4), and automatic material catching apparatus (3 ＇) unclamps raw material and melts rod (4), and main shaft (1) continues to rotate and declined, until
Raw material melts rod (4) lower end and passed sequentially through after connection guider (5) and transition guider (6), and automatic clamping chuck (3) unclamps raw material and melts rod
(4), main shaft (1) retracts rapidly home position；
4. raw material melts rod (4) and continues to feed downwards under the driving of connection guider (5) and transition guider (6), when connection is led
Sense that first raw material melts rod end and have already passed through connection guider (5), automatic material catching apparatus to the inductor on device (5)
Another raw material that (3 ＇) can capture transition chamber (13) melts rod to automatic clamping chuck (3) underface, and then main shaft (1), which is done, rotates decline
Motion, automatic clamping chuck (3), which touches raw material and melts rod upper end and firmly grasp raw material automatically, melts rod, and automatic material catching apparatus (3 ＇) unclamps raw material
Molten rod, main shaft (1) continues to rotate and declined, and decrease speed is more than the charging rate of first raw material, until another raw material melts rod
Lower end touch first raw material melt rod upper end, main shaft rotation and descending motion effect under, internal thread and external screw thread lock
Tight formed integrally is changed into the molten rod of a raw material, and automatic clamping chuck (3) unclamps another raw material and melts rod, and main shaft (1) retracts rapidly original
Position, first raw material melts rod (4) and drives the molten rod of second raw material to pass through linear actuator (7) and linear guide device (8) continuation
Conveying downwards, raw material melts rod and heats fusing afterwards by heater (9), under the droplets of feed or liquid stream of melting are vertically fallen into just
It is atomized in the atomizer (15) of side, is then collected, sieves or be classified, is packed；
, will be new when 5. repeating the 4. step to last root raw material of transition chamber (13) melting rod to automatic clamping chuck (3) underface
Raw material melts rod disk and loads displacement room (14), close displacement door (11), will replace room (14) and is evacuated to main operating room (2 ＇) equally
Vacuum, then automatically opens up transition door (10), the raw material of transition chamber (13) melts rod disk and the raw material of displacement room (14) melts rod disk
Station switches rapidly, is then shut off transition door (10), and the raw material replaced in room (14) is melted into rod disk fills, and closes displacement door
(11) displacement room (14), is evacuated to the vacuum with main operating room (2 ＇) equally, the molten rod disk switching of raw material next time is waited；
6. raw material is melted after the switching of rod disk in transition chamber (13) and displacement room (14), continue to repeat the 4. with the 5. step, until raw
Production terminates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710688149.7A CN107234245A (en) | 2017-08-12 | 2017-08-12 | The equipment that a kind of use bar continuous feed produces spherical powder |
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|---|---|---|---|
| CN201710688149.7A CN107234245A (en) | 2017-08-12 | 2017-08-12 | The equipment that a kind of use bar continuous feed produces spherical powder |
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| CN201710688149.7A Pending CN107234245A (en) | 2017-08-12 | 2017-08-12 | The equipment that a kind of use bar continuous feed produces spherical powder |
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| CN107457408A (en) * | 2017-10-19 | 2017-12-12 | 沈阳真空技术研究所 | The sensing atomization of continous way cold crucible prepares titanium valve equipment |
| CN107803511A (en) * | 2017-12-25 | 2018-03-16 | 株洲双菱科技有限公司 | One kind is without crucible vacuum gas-atomized powder equipment and its milling method |
| CN111906323A (en) * | 2020-08-13 | 2020-11-10 | 中天上材增材制造有限公司 | Gas atomization device and method for efficient online continuous production |
| CN115815608A (en) * | 2022-11-30 | 2023-03-21 | 安德伦(重庆)材料科技有限公司 | Continuous feeding device and method for gas atomization powder preparation |
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