CN107008913A - A kind of vertical powder manufacturing apparatus of plasma rotating electrode and flouring technology - Google Patents
A kind of vertical powder manufacturing apparatus of plasma rotating electrode and flouring technology Download PDFInfo
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- CN107008913A CN107008913A CN201710265886.6A CN201710265886A CN107008913A CN 107008913 A CN107008913 A CN 107008913A CN 201710265886 A CN201710265886 A CN 201710265886A CN 107008913 A CN107008913 A CN 107008913A
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- 239000000843 powder Substances 0.000 title claims abstract description 239
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 142
- 239000011261 inert gas Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 18
- 238000010298 pulverizing process Methods 0.000 description 16
- 229910001069 Ti alloy Inorganic materials 0.000 description 11
- 229910052786 argon Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 230000003031 feeding effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 230000003340 mental effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004804 winding 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
- B22F9/10—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
Abstract
The invention discloses a kind of vertical powder manufacturing apparatus of plasma rotating electrode, including vertical powder body of heater processed, penetrate the electrode bar of vertical powder bottom of furnace body processed and the plasma gun being arranged at the top of vertical powder body of heater processed, the pipette tips of plasma gun face the end of electrode bar, the bottom of vertical powder body of heater processed is vertically arranged with many guide rods, the bottom of guide rod is fixedly connected with fixed stop, on be slidably fitted with dynamic beam, rotating mechanism and feed mechanism are installed on dynamic beam, dynamic sealing mechanism is set between the bottom wall of electrode bar and vertical powder body of heater processed, receipts powder drum is connected with vertical powder body of heater processed, pumped vacuum systems and inert gas protection system.In addition, the invention also discloses the technique for preparing spherical metal powder using the vertical powder manufacturing apparatus of plasma rotating electrode.The present invention is simple in construction, easy to use, improves the granularity and size distribution of globular metallic powder, and the spherical powder particle diameter of generation is small, and sphericity is high, drastically increases metal dust quality, can be applicable.
Description
Technical field
The invention belongs to powder metallurgical technology, and in particular to a kind of vertical powder manufacturing apparatus of plasma rotating electrode and system
Powder craft.
Background technology
High-quality globular metallic powder is important original necessary to the production fields such as powder metallurgy near-net-shape, 3D printing
Material, in recent years with the fast development of the technologies such as 3D printing, granularity, degree of purity requirement to metal dust raw material are stepped up.
Plasma rotating electrode process is to prepare one of method of globular metallic powder, and large scale diameter bar and high rotation speed are directly determined
The granularity and size distribution of spherical powder are determined.Current plasma rotating electrode process powder mainly uses horizontal powder manufacturing apparatus, electricity
Pole rod uses horizontal positioned pattern, and the bar pulverizing process highest rotary speed of domestic horizontal powder manufacturing apparatus 50mm diameters is
15000r/min~18000r/min.Pulverizing process bar rotary speed constrains further carrying for globular metallic powder granularity
It is high.Existing milling method is also all based on horizontal powder manufacturing apparatus substantially and designed, the metal powder after being atomized in pulverizing process
End is easily affected by gravity, and the spherolite of powder is uneven.
The content of the invention
The technical problems to be solved by the invention are to revolve there is provided a kind of plasma for above-mentioned the deficiencies in the prior art
Turn the vertical powder manufacturing apparatus of electrode.The preparation method is simple in construction, easy to use, improves the granularity and granularity point of globular metallic powder
Cloth, the spherical powder particle diameter of generation is small, and sphericity is high, drastically increases powder quality, can be applicable.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of vertical powder processed of plasma rotating electrode
Equipment, it is characterised in that including vertical powder body of heater processed, penetrate the electrode bar of vertical powder bottom of furnace body processed and be arranged on vertical powder processed
Plasma gun at the top of body of heater, the bottom of the vertical powder body of heater processed is vertically arranged with many guide rods, the bottom of the guide rod
Portion, which is fixedly connected with fixed stop, the guide rod, is slidably fitted with dynamic beam, is provided with the dynamic beam and the electrode bar
Rotating mechanism and the feed mechanism for promoting electrode bar that end is connected and being rotated for driving electrodes rod, the electrode bar
Set on dynamic sealing mechanism, the vertical powder body of heater processed and be connected with for collecting spherical gold between the bottom wall of vertical powder body of heater processed
The receipts powder drum for belonging to powder, the pumped vacuum systems that is vacuumized for vertical powder body of heater processed and for fill guarantor in vertical powder body of heater processed
Protect the inert gas protection system of gas.
The above-mentioned vertical powder manufacturing apparatus of a kind of plasma rotating electrode, it is characterised in that it is main that the rotating mechanism includes electricity
Mounting hole is offered on axle and electric rotating machine, the dynamic beam immediately below electrode bar, the electro spindle is rotatably installed in mounting hole
Interior, the electro spindle is fixedly connected with the bottom of electrode bar, and the electric rotating machine is fixed on the side of dynamic beam, the electric rotating machine
Output shaft rotated and be connected by transmission belt one and electro spindle.
The above-mentioned vertical powder manufacturing apparatus of a kind of plasma rotating electrode, it is characterised in that the feed mechanism includes fixing
The screw mandrel of feeding motor on dynamic beam, the feed screw nut through dynamic beam, the feeding motor and feed screw nut pass through transmission belt
Two connections, one end of the feed screw nut is rotated with vertical powder body of heater processed and is connected, and the other end of the feed screw nut is kept off with fixed
Block rotates connection, and the dynamic beam is fixedly connected with the nut of feed screw nut.
A kind of above-mentioned vertical powder manufacturing apparatus of plasma rotating electrode, it is characterised in that the inert gas protection system
Including the inertia gas cylinder equipped with inert gas, the inertia gas cylinder is connected by inertia breather pipe with vertical powder body of heater processed.
The above-mentioned vertical powder manufacturing apparatus of a kind of plasma rotating electrode, it is characterised in that the pumped vacuum systems includes true
It is provided with the vacuum pipe of empty pump and connection vavuum pump and vertical powder body of heater processed, the vavuum pump for detecting vacuum
Detecting element.
The above-mentioned vertical powder manufacturing apparatus of a kind of plasma rotating electrode, it is characterised in that the dynamic sealing mechanism includes equal
V-shaped seal ring, locking nut, constraint bearing, dirt-proof boot, water collar and gland on electrode bar are sleeved on, the water collar leads to
Planar Mechanisms bearing is arranged between the bottom wall of vertical powder body of heater processed and electrode bar, and the dirt-proof boot is located at the top of water collar, institute
Gland is stated positioned at the bottom of water collar and is bolted on water collar, the V-shaped seal ring is located at gland and electrode bar
Between, the upward top pressure locking V-shaped seal ring of locking nut；The constraint bearing) it is angular contact bearing.
A kind of above-mentioned vertical powder manufacturing apparatus of plasma rotating electrode, it is characterised in that the vertical powder body of heater processed it is interior
Bottom surface is cone, and the bottom of the vertical powder body of heater processed offers conical grooves, and electrode bar passes through the bottom of the conical grooves, institute
Conical grooves are stated at the bottom centre of vertical powder body of heater processed, the electrode bar is passed through in the middle part of the conical grooves.
The above-mentioned vertical powder manufacturing apparatus of a kind of plasma rotating electrode, it is characterised in that the receipts powder drum and vertical powder processed
Stop valve is provided between body of heater.
In addition, preparing spherical metal using the vertical powder manufacturing apparatus of above-mentioned plasma rotating electrode present invention also offers one kind
The technique of powder, it is characterised in that the technique comprises the following steps：
Step 1: metal bar material is processed into a diameter of 15mm~180mm, length is 100mm~2000mm electrode bar,
And the roundness deviation of electrode bar is less than 0.08mm, linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；The electrode
One end of rod is machined with the internal thread being engaged with the rotating mechanism, and the other end of the electrode bar is machined with and the interior spiral shell
The external screw thread that line is engaged；
It is installed to Step 2: taking electrode bar described in two steps one to be screwed successively on the rotating mechanism, wherein
The electrode bar being directly connected to the rotating mechanism is located at bottom, and labeled as bottom electrode rod, another electrode bar is labeled as upper electricity
Pole rod；
Worn Step 3: opening two electrode bars being arranged in the feed mechanism actuation step two on the rotating mechanism
The dynamic sealing mechanism of the bottom of the vertical powder body of heater processed is crossed, the Top electrode rod is located at the inside of vertical powder body of heater processed, institute
State the outside that bottom electrode rod is located at vertical powder body of heater processed；
Step 4: after feed mechanism described in step 3 sends into the Top electrode rod in vertical powder body of heater processed, starting
The vertical powder body of heater processed of pumped vacuum systems carries out vacuumize process, until the vacuum of vertical powder body of heater processed reaches 5 × 10- 3Pa~2 × 10-2Pa, is then filled with high-purity inert gas into vertical powder body of heater processed by inert gas protection system and carries out
Atmosphere protection；
Step 5: after high-purity inert gas is full of in vertical powder body of heater processed in step 4, starting the rotating mechanism
Driving electrodes rod rotates at a high speed；
Step 6: when the rotary speed of electrode bar in step 5 reaches specified rotary speed, opening plasma gun, waiting
Plasma melts the top free ends of the Top electrode rod in the presence of ion gun, the metal of melting centrifugal action under from
The end of electrode bar is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into vertical powder body of heater bottom processed
In the receipts powder drum in portion；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, plasma gun and the feed mechanism are closed,
Bottom electrode rod and rotating mechanism connection are unclamped, bottom electrode bar is fixed on vertical powder body of heater processed by the dynamic sealing mechanism vertically
On, the feed mechanism after one segment distance of operation, increases an electrode bar newly between the bottom electrode rod and rotating mechanism downwards,
The lower end of newly-increased electrode bar is threadedly coupled with the rotating mechanism, the upper end of newly-increased electrode bar and the lower end spiral shell of bottom electrode rod
Line is connected, and now newly-increased electrode bar is changed into bottom electrode rod, and bottom electrode rod originally turns into new Top electrode rod；
Step 8: repeat step one is to step 7, realization continuously prepares globular metallic powder.
Above-mentioned method, it is characterised in that feed mechanism described in step 3 is 0.1mm/s to the feed rate of electrode bar
~20mm/s；The rotary speed of the rod of rotating mechanism driving electrodes described in step 5 is 10000r/min~150000r/min.
Above-mentioned method, it is characterised in that high-purity inert gas described in step 3 be helium or argon gas, it is described high-purity
The quality purity for spending inert gas is not less than 99.999%.
The present invention has advantages below compared with prior art：
1st, the vertical powder manufacturing apparatus of plasma rotating electrode of the invention is simple in construction, reasonable in design, practical, with very
The strong market competitiveness, the spherical powder particle diameter of preparation is small, and sphericity is high, drastically increases powder quality, preparation it is spherical
Powder sort extensively, expands application, with good market prospects.
2nd, the electrode bar of the vertical powder manufacturing apparatus of plasma rotating electrode of the invention uses vertical placement pattern, has evaded electricity
Pole rod weight is to the load effect of dynamic sealing electrode bar radial constraint bearing, and the pipette tips of plasma gun face electrode bar
End, and rotating mechanism includes electro spindle and electric rotating machine, and electro spindle is rotatably installed in the mounting hole opened up in the middle part of dynamic beam,
The output shaft of the electric rotating machine is rotated with electro spindle by transmission belt one and is connected, because electric rotating machine is driven by transmission belt one
Electro spindle is rotated, while electro spindle also has equidirectional rotation ability, therefore, the rotatory power of driving electrodes rod is folded
Plus, realizing the rotating mechanism of driving electrodes rod rotation can significantly rotate, and drastically increase pulverizing process electrode bar
Rotary speed, the rotary speed of pulverizing process electrode bar is 10000r/min~150000r/min, and highest rotary speed exceedes
Existing powder manufacturing apparatus.
3rd, the feed mechanism of the vertical powder manufacturing apparatus of plasma rotating electrode of the invention includes being sent into motor and feed screw nut,
And rotate the transmission belt one that connection is sent into the screw mandrel of motor and feed screw nut, can the continuous reduction of electrode stick end situation
Under, electrode bar is provided with dynamic sealing mechanism between plasma gun iterative method, and electrode bar and vertical powder body of heater processed, side
When just changing electrode bar, it is ensured that the sealing of vertical powder body of heater processed and the continuity of flouring technology.
4th, milling method of the invention is simple, and the metal dust that the electrode bar that vertical direction is set is melted is not by gravity
Influence, particle diameter evenly, and electrode bar rotary speed compared to existing equipment rotary speed it is higher, be effectively improved ball
The granularity and size distribution of shape powder.
5th, pulverizing process of the invention is simple, and operating cost is low, need to only take out vacuum, fill an inert gas, pass through
Constantly supplement electrode bar can be realized as continuous powder processed, and the globular metallic powder particle size uniformity prepared in batches, height are spherical
Spend and without hollow powder, the application needs of field of aerospace can be met.
Technical scheme is described in further detail below by drawings and examples.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A portions enlarged drawing in Fig. 1.
Description of reference numerals：
1-vertical powder body of heater processed；2-it is sent into motor；3-transmission belt two；
4-guide rod；5-feed screw nut；6-move beam；
7-electrode bar；8-plasma gun；9-conical grooves；
10-electro spindle；11-transmission belt one；12-electric rotating machine；
13-stop valve；14-stop valve；15-receive powder drum；
16-vacuum pipe；17-detecting element；18-vavuum pump；
19-inertia gas cylinder；20-fixed stop；21-V-shaped seal ring；
22-locking nut；23-constraint bearing；24-dirt-proof boot；
25-water collar；26-gland.
Embodiment
A kind of vertical powder manufacturing apparatus of plasma rotating electrode of the present invention is described by embodiment 1：
Embodiment 1
The vertical powder manufacturing apparatus of a kind of plasma rotating electrode as depicted in figs. 1 and 2, including vertical powder body of heater 1 processed, penetrate
The electrode bar 7 of the vertical bottom of powder body of heater 1 processed and the plasma gun 8 for being arranged on the vertical top of powder body of heater processed 1, the plasma gun 8
Pipette tips face the end of electrode bar 7, the bottom of the vertical powder body of heater 1 processed is vertically arranged with many guide rods 4, described to lead
It is fixedly connected with to the bottom of bar 4 on fixed stop 20, the guide rod 4 and is slidably fitted with dynamic beam 6, is installed on the dynamic beam 6
There is rotating mechanism that is being connected with the end of electrode bar 7 and being rotated for driving electrodes rod 7 and for promoting sending for electrode bar 7
Enter mechanism, set between the electrode bar 7 and the bottom wall of vertical powder body of heater 1 processed on dynamic sealing mechanism, the vertical powder body of heater 1 processed
Be connected with for the receipts powder drum 15 for collecting globular metallic powder, the pumped vacuum systems that vacuumizes for vertical powder body of heater 1 processed and
For to fill the inert gas protection system of protective gas in vertical powder body of heater 1 processed.
In the present embodiment, the high-purity inert gas is helium or argon gas, and the quality of the high-purity inert gas is pure
Degree is not less than 99.999%.
In the present embodiment, the quantity of the guide rod 4 is four, and is round bar, can make beam with being arranged on dynamic beam
Rotating mechanism and feed mechanism stably realize driving electrodes rod rotation and be sent into function.
In the present embodiment, the vertical powder body of heater 1 processed is cylindric, and its bottom has supporting leg, and this causes vertical system
The bottom of powder body of heater 1 has larger space, for installing lead, dynamic beam, rotating mechanism, feed mechanism and receiving powder drum；Institute
State and be additionally provided with observation window on vertical powder body of heater 1 processed, the Expenditure Levels for observing electrode bar 7 in plasma pulverizing process, side
Just increase electrode bar 7 at any time, keep the continuity of flouring technology.
In the present embodiment, the rotating mechanism includes electro spindle 10 and electric rotating machine 12, dynamic immediately below electrode bar 7
Mounting hole is offered on beam 6, the electro spindle 10 is rotatably installed in mounting hole, the bottom of the electro spindle 10 and electrode bar 7
It is fixedly connected, the electric rotating machine 12 is fixed on the side of dynamic beam 6, the output shaft of the electric rotating machine 12 passes through transmission belt 1
Rotate and be connected with electro spindle 10.
The working method of the rotating mechanism is：The electric rotating machine 12 drives electro spindle 10 to revolve by transmission belt 2 11
Turn, promote the rotary rpm of electrode bar 7 up to 80000r/min, while electro spindle 10 also has drives its rotation with transmission belt 2 11
The direction identical rotation turned, the rotary rpm of rotation is dual in electro spindle 10 and electric rotating machine 12 also up to 80000r/min
In the presence of rotation superposition, the highest rotary rpm of the rotating mechanism driving electrodes rod 7 is up to 150000r/min, compared to existing
Highest rotary rpm 15000r/min~18000r/min of some rotating mechanism driving electrodes rods, rotating mechanism of the invention drives
Faster, therefore the obtained powder particle during high speed rotates of electrode bar 7 is smaller, granularity for the rotary speed of moving electrode rod 7
More uniform, sphericity is higher.
In the present embodiment, the feed mechanism includes being fixed on is sent into motor 2, the screw mandrel spiral shell through dynamic beam 6 on dynamic beam 6
Mother 5, it is described feeding motor 2 be connected with the screw mandrel of feed screw nut 5 by transmission belt 23, one end of the feed screw nut 5 with it is vertical
Powder body of heater 1 processed rotates connection, and the other end of the feed screw nut 5 is rotated with fixed stop 20 to be connected, the dynamic beam 6 and screw mandrel spiral shell
The nut of mother 5 is fixedly connected.
In the present embodiment, the opposite sides that motor 2 and electric rotating machine 12 are located at dynamic beam 6 respectively is sent into, is conducive to whirler
Structure, feed mechanism and dynamic beam 6 maintain good stability on the guide bar, it is ensured that the knot between electrode bar 7 and dynamic sealing mechanism
Close close, do not allow to damage.
The working method of the feed mechanism is：Motor 2 is sent into by the screw mandrel of the drive screw nut 5 of transmission belt 23 to turn
Dynamic, the nut wire winding rod of feed screw nut 5 is moved upwardly or downwardly, then moves beam 6 and be moved upwardly or downwardly along guide rod realization, and
The feed mechanism and rotating mechanism being fixed on dynamic beam 6 are driven, so as to further realize that electrode bar 7 is constantly sent into upwards, all the time
Constant distance is kept with plasma gun 8, the effect of continuous powder processed is realized.
In the present embodiment, the pumped vacuum systems includes vavuum pump 18 with connecting vavuum pump 18 and vertical powder body of heater 1 processed
Vacuum pipe 16, is connected, good airproof performance using vacuum pipe 16, is easy to vertical powder body of heater 1 processed to be evacuated to less vacuum,
And the detecting element 17 for detecting vacuum is provided with the vavuum pump 18, the vacuum of vertical powder body of heater 1 processed is can detect
Degree, makes up to requirement.
The inert gas protection system includes the inertia gas cylinder 19 equipped with inert gas, and the inertia gas cylinder 19 is by lazy
Property breather pipe is connected with vertical powder body of heater 1 processed；The inert gas protection system can facilitate vertical powder body of heater 1 processed to vacuumize it
The interior inert gas for being filled with high-purity again afterwards, flouring technology is carried out under inert gas shielding, prevents metal to be oxidized, product matter
Quantitative change is poor, influences product quality.
In the present embodiment, the dynamic sealing mechanism includes V-shaped seal ring 21, the locking nut being sleeved on electrode bar 7
22nd, constraint bearing 23, dirt-proof boot 24, water collar 25 and gland 26, the water collar 25 by constrain bearing 23 be arranged on it is vertical
Between the bottom wall and electrode bar 7 of powder body of heater 1 processed, the dirt-proof boot 24 is located at the top of water collar 25, and the gland 26 is located at water
The bottom of cold set 25 is simultaneously bolted on water collar 25, the V-shaped seal ring 21 be located at gland 26 and electrode bar 7 it
Between, the locking nut 22 upward top pressure locking V-shaped seal ring 21；The constraint bearing 23 is angular contact bearing.
In the present embodiment, the inner side of the constraint bearing 23 is in contact with electrode bar 7 realizes the high-speed rotation of electrode bar 7
Radial constraint, constraint bearing 23 outside contact with water collar 25 realize constrain bearing 23 rotate the cold of self-heating at a high speed
But, locking nut 22 can be with the first side of axial compression V-seal 21 so that V-seal 21 opens rear second side and pressure
The inwall of lid 26 is contacted, and the 3rd side of V-seal 21 is contacted with electrode bar 7, realizes the sealing of body of heater.In pulverizing process, gold
Category powder can unclamp locking nut 22 when preparing so that the side of V-seal 21 the 3rd produces certain gap with electrode bar 7,
So as to reduce the abrasion of V-seal 21, dirt-proof boot 24 is located at the top of dynamic sealing, prevents metallic dust from entering constraint bearing
In 23, damage is caused to dynamic sealing mechanism.
In the present embodiment, the inner bottom surface of the vertical powder body of heater 1 processed is cone, makes the inner bottom surface of vertical powder body of heater 1 processed
The inclined-plane tilted down is formed, is conducive to powder, the bottom of the vertical powder body of heater 1 processed offers conical grooves 9, and electrode bar 7 is worn
The bottom of the conical grooves 9 is crossed, the conical grooves 9 are located at the bottom centre of vertical powder body of heater 1 processed, and the electrode bar 7 is passed through
The middle part of conical grooves 9.
In the present embodiment, stop valve 14, convenient continuous powder processed are provided between the receipts powder drum 15 and vertical powder body of heater 1 processed
During the receipts powder drum 15 of receiving full metal dust is changed, the continuity of flouring technology is not influenceed.
The technique that the present invention prepares globular metallic powder is described by embodiment 2- embodiments 5：
Embodiment 2
The technique that the present embodiment prepares globular metallic powder comprises the following steps：
Step 1: metal bar material is processed into a diameter of 15mm, length is 100mm electrode bar 7, and the circle of electrode bar 7
Spend deviation and be less than 0.08mm, linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；One end processing of the electrode bar 7
There is the internal thread being engaged with the rotating mechanism, the other end of the electrode bar 7 is machined with what is be engaged with the internal thread
External screw thread；
Step 2: taking electrode bar 7 described in two steps one to be screwed successively is installed to the electricity master of the rotating mechanism
On axle 10, wherein the electrode bar 7 being directly connected to the electro spindle 10 of the rotating mechanism is located at bottom, labeled as bottom electrode rod,
Another electrode bar 7 is labeled as Top electrode rod；
Step 3: opening two electrode bars 7 being arranged in the feed mechanism actuation step two on the rotating mechanism
Through the dynamic sealing mechanism of the bottom of the vertical powder body of heater 1 processed, the Top electrode rod is set to be located at the inside of vertical powder body of heater processed,
The bottom electrode rod is located at the outside of vertical powder body of heater 1 processed；The feed mechanism is 0.1mm/s to the feed rate of electrode bar 7
~20mm/s, feed rate according to the rotating speed of the feeding motor 2 adjusted at any time the need in pulverizing process on the feed mechanism,
The distance between electrode bar 7 and pipette tips of plasma gun 5 are made to keep constant；
Step 4: after feed mechanism sends into the Top electrode rod in vertical powder body of heater 1 processed described in step 3, starting
The vertical powder body of heater 1 processed of the pumped vacuum systems carries out vacuumize process, 5 are reached until the vacuum of vertical powder body of heater 1 processed ×
10-3Pa, is then filled with the argon gas that quality purity is more than 99.99% into vertical powder body of heater 1 processed by inert gas protection system 9
Carry out atmosphere protection；
Step 5: after argon gas is full of in vertical powder body of heater 1 processed in step 4, starting the rotating mechanism driving electrodes rod
7 rotate at a high speed；The rotary speed of the rotating mechanism driving electrodes rod 7 is 150000r/min；
Step 6: when the rotary speed of electrode bar 7 in step 5 reaches 150000r/min rotary speed, open etc.
Ion gun 5, plasma melts the top free ends of the Top electrode rod in the presence of plasma gun 5, the metal of melting
End under centrifugal action from electrode bar 7 is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into
The vertical bottom of powder body of heater 1 processed, and collect in receipts powder drum 15；The setting electric current of the plasma gun 5 is 400A；Due to the process
The top free ends of middle electrode bar 7, it is necessary to adjust the feed mechanism, make electrode bar 7 constantly be sent into upwards in continuous consumption,
The top of holding electrode rod 7 and the distance between the pipette tips of plasma gun 5 are constant；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, closing plasma gun 5 and the feeding machine
Structure, unclamps bottom electrode rod and rotating mechanism connection, bottom electrode bar is fixed on vertical powder processed by the dynamic sealing mechanism vertically
On body of heater 1, it is ensured that vertical powder body of heater 1 processed is constantly in air-tight state, and the feed mechanism is run after a segment distance downwards, in institute
State and increase an electrode bar 7 between bottom electrode rod and rotating mechanism newly, lower end and the rotating mechanism screw thread of newly-increased electrode bar 7
Connection, the newly-increased upper end of electrode bar 7 and the lower end of bottom electrode rod is threadedly coupled, and now newly-increased electrode bar 7 is changed into bottom electrode
Rod, bottom electrode rod originally turns into new Top electrode rod；
Step 8: repeat step one is then realized to step 7 and continuously prepares globular metallic powder.
In the present embodiment, the material of the electrode bar 7 is titanium alloy.
Titanium alloy powder of the diameter prepared through the present embodiment less than 45 μm accounts for the 87wt% of total powder particle, powder effect processed
It is really good, and only need to take out the logical inert gas of a vacuum in pulverizing process, after the fusing of Top electrode rod is complete, then again
Continuous Top electrode rod, realizes continuous powder processed, and because electrode bar is to be vertically arranged, it is to avoid shadow of the self gravitation to its swing
Ring, and because rotating mechanism driving electrodes rod has higher rotary speed so that the titanium alloy cooled down in an inert atmosphere
More preferably, particle diameter is also uniform for the sphericity of spherical powder, while coordinating the feeding effect of feed mechanism makes electrode bar 7 and plasma gun
The distance between 5 pipette tips are constant, it is ensured that the stability of flouring technology.
Embodiment 3
The technique that the present embodiment prepares globular metallic powder comprises the following steps：
Step 1: metal bar material is processed into a diameter of 100mm, length is 300mm electrode bar 7, and the circle of electrode bar 7
Spend deviation and be less than 0.08mm, linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；One end processing of the electrode bar 7
There is the internal thread being engaged with the rotating mechanism, the other end of the electrode bar 7 is machined with what is be engaged with the internal thread
External screw thread；
Step 2: taking electrode bar 7 described in two steps one to be screwed successively is installed to the electricity master of the rotating mechanism
On axle 10, wherein the electrode bar 7 being directly connected to the electro spindle 10 of the rotating mechanism is located at bottom, labeled as bottom electrode rod,
Another electrode bar 7 is labeled as Top electrode rod；
Step 3: opening two electrode bars 7 being arranged in the feed mechanism actuation step two on the rotating mechanism
Through the dynamic sealing mechanism of the bottom of the vertical powder body of heater 1 processed, the Top electrode rod is set to be located at the inside of vertical powder body of heater processed,
The bottom electrode rod is located at the outside of vertical powder body of heater 1 processed；The feed mechanism is 0.1mm/s to the feed rate of electrode bar 7
~20mm/s, feed rate is according to the rotating speed of the feeding motor 2 adjusted at any time the need in pulverizing process on the feed mechanism；
Step 4: after feed mechanism sends into the Top electrode rod in vertical powder body of heater 1 processed described in step 3, starting
The vertical powder body of heater 1 processed of the pumped vacuum systems carries out vacuumize process, 5 are reached until the vacuum of vertical powder body of heater 1 processed ×
10-3Pa, is then filled with the helium that quality purity is more than 99.99% into vertical powder body of heater 1 processed by inert gas protection system 9
Carry out atmosphere protection；
Step 5: after argon gas is full of in vertical powder body of heater 1 processed in step 4, starting the rotating mechanism driving electrodes rod
7 rotate at a high speed；The rotary speed of the rotating mechanism driving electrodes rod 7 is 150000r/min；
Step 6: when the rotary speed of electrode bar 7 in step 5 reaches 80000r/min rotary speed, open etc. from
Sub- rifle 5, plasma melts the top free ends of the Top electrode rod in the presence of plasma gun 5, the metal of melting from
End under mental power function from electrode bar 7 is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into vertical
In the receipts powder drum 15 of the bottom of formula powder body of heater 1；The setting electric current of the plasma gun 5 is 3000A；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, closing plasma gun 5 and the feeding machine
Structure, unclamps bottom electrode rod and rotating mechanism connection, bottom electrode bar is fixed on vertical powder processed by the dynamic sealing mechanism vertically
On body of heater 1, it is ensured that vertical powder body of heater 1 processed is constantly in air-tight state, and the feed mechanism is run after a segment distance downwards, in institute
State and increase an electrode bar 7 between bottom electrode rod and rotating mechanism newly, lower end and the rotating mechanism screw thread of newly-increased electrode bar 7
Connection, the newly-increased upper end of electrode bar 7 and the lower end of bottom electrode rod is threadedly coupled, and now newly-increased electrode bar 7 is changed into bottom electrode
Rod, bottom electrode rod originally turns into new Top electrode rod；
Step 8: repeat step one is to step 7, realization continuously prepares globular metallic powder.
In the present embodiment, the material of the electrode bar 7 is titanium alloy.
Titanium alloy powder of the diameter prepared through the present embodiment less than 45 μm accounts for the 82wt% of total powder particle, powder effect processed
It is really good, and only need to take out the logical inert gas of a vacuum in pulverizing process, after the fusing of Top electrode rod is complete, then weigh
Newly continuous Top electrode rod, realizes continuous powder processed, and because electrode bar is to be vertically arranged, it is to avoid self gravitation is to its swing
Influence, and because rotating mechanism driving electrodes rod has higher rotary speed so that the titanium cooled down in an inert atmosphere is closed
More preferably, particle diameter is also uniform for the sphericity of golden spherical powder, while coordinating the feeding effect of feed mechanism makes electrode bar 7 and plasma
The distance between the pipette tips of rifle 5 are constant, it is ensured that the stability of flouring technology.
Embodiment 4
The technique that the present embodiment prepares globular metallic powder comprises the following steps：
Step 1: metal bar material is processed into a diameter of 180mm, length is 2000mm electrode bar 7, and electrode bar 7
Roundness deviation is less than 0.08mm, and linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；One end of the electrode bar 7 adds
Work has the internal thread being engaged with the rotating mechanism, and the other end of the electrode bar 7 is machined with to be engaged with the internal thread
External screw thread；
Step 2: taking electrode bar 7 described in two steps one to be screwed successively is installed to the electricity master of the rotating mechanism
On axle 10, wherein the electrode bar 7 being directly connected to the electro spindle 10 of the rotating mechanism is located at bottom, labeled as bottom electrode rod,
Another electrode bar 7 is labeled as Top electrode rod；
Step 3: opening two electrode bars 7 being arranged in the feed mechanism actuation step two on the rotating mechanism
Through the dynamic sealing mechanism of the bottom of the vertical powder body of heater 1 processed, the Top electrode rod is set to be located at the inside of vertical powder body of heater processed,
The bottom electrode rod is located at the outside of vertical powder body of heater 1 processed；The feed mechanism is 0.1mm/s to the feed rate of electrode bar 7
~20mm/s, feed rate is according to the rotating speed of the feeding motor 2 adjusted at any time the need in pulverizing process on the feed mechanism；
Step 4: after feed mechanism sends into the Top electrode rod in vertical powder body of heater 1 processed described in step 3, starting
The vertical powder body of heater 1 processed of the pumped vacuum systems carries out vacuumize process, 1 is reached until the vacuum of vertical powder body of heater 1 processed ×
10-3Pa, is then filled with argon gas of the purity more than 99.99% into vertical powder body of heater 1 processed by inert gas protection system 9 and carries out
Atmosphere protection；
Step 5: after argon gas is full of in vertical powder body of heater 1 processed in step 4, starting the rotating mechanism driving electrodes rod
7 rotate at a high speed；The rotary speed of the rotating mechanism driving electrodes rod 7 is 150000r/min；
Step 6: when the rotary speed of electrode bar 7 in step 5 reaches 50000r/min rotary speed, open etc. from
Sub- rifle 5, plasma melts the top free ends of the Top electrode rod in the presence of plasma gun 5, the metal of melting from
End under mental power function from electrode bar 7 is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into vertical
In the receipts powder drum 15 of the bottom of formula powder body of heater 1；The setting electric current of the plasma gun 5 is 5000A；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, closing plasma gun 5 and the feeding machine
Structure, unclamps bottom electrode rod and rotating mechanism connection, bottom electrode bar is fixed on vertical powder processed by the dynamic sealing mechanism vertically
On body of heater 1, it is ensured that vertical powder body of heater 1 processed is constantly in air-tight state, and the feed mechanism is run after a segment distance downwards, in institute
State and increase an electrode bar 7 between bottom electrode rod and rotating mechanism newly, lower end and the rotating mechanism screw thread of newly-increased electrode bar 7
Connection, the newly-increased upper end of electrode bar 7 and the lower end of bottom electrode rod is threadedly coupled, and now newly-increased electrode bar 7 is changed into bottom electrode
Rod, bottom electrode rod originally turns into new Top electrode rod；
Step 8: repeat step one is to step 7, realization continuously prepares globular metallic powder.
In the present embodiment, the material of the electrode bar 7 is titanium alloy.
Titanium alloy powder of the diameter prepared through the present embodiment less than 45 μm accounts for the 71wt% of total powder particle, powder effect processed
It is really good, and only need to take out the logical inert gas of a vacuum in pulverizing process, after the fusing of Top electrode rod is complete, then again
Continuous Top electrode rod, realizes continuous powder processed, and because electrode bar is to be vertically arranged, it is to avoid shadow of the self gravitation to its swing
Ring, and because rotating mechanism driving electrodes rod has higher rotary speed so that the titanium alloy cooled down in an inert atmosphere
More preferably, particle diameter is also uniform for the sphericity of spherical powder, while coordinating the feeding effect of feed mechanism makes electrode bar 7 and plasma gun
The distance between 5 pipette tips are constant, it is ensured that the stability of flouring technology.
Embodiment 5
The technique that the present embodiment prepares globular metallic powder comprises the following steps：
Step 1: metal bar material is processed into a diameter of 100mm, length is 1000mm electrode bar 7, and electrode bar 7
Roundness deviation is less than 0.08mm, and linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；One end of the electrode bar 7 adds
Work has the internal thread being engaged with the rotating mechanism, and the other end of the electrode bar 7 is machined with to be engaged with the internal thread
External screw thread；
Step 2: taking electrode bar 7 described in two steps one to be screwed successively is installed to the electricity master of the rotating mechanism
On axle 10, wherein the electrode bar 7 being directly connected to the electro spindle 10 of the rotating mechanism is located at bottom, labeled as bottom electrode rod,
Another electrode bar 7 is labeled as Top electrode rod；
Step 3: opening two electrode bars 7 being arranged in the feed mechanism actuation step two on the rotating mechanism
Through the dynamic sealing mechanism of the bottom of the vertical powder body of heater 1 processed, the Top electrode rod is set to be located at the inside of vertical powder body of heater processed,
The bottom electrode rod is located at the outside of vertical powder body of heater 1 processed；The feed mechanism is 0.1mm/s to the feed rate of electrode bar 7
~20mm/s, feed rate is according to the rotating speed of the feeding motor 2 adjusted at any time the need in pulverizing process on the feed mechanism；
Step 4: after feed mechanism sends into the Top electrode rod in vertical powder body of heater 1 processed described in step 3, starting
The vertical powder body of heater 1 processed of the pumped vacuum systems carries out vacuumize process, 2 are reached until the vacuum of vertical powder body of heater 1 processed ×
10-2Pa, is then filled with argon gas of the purity more than 99.99% into vertical powder body of heater 1 processed by inert gas protection system 9 and carries out
Atmosphere protection；
Step 5: after argon gas is full of in vertical powder body of heater 1 processed in step 4, starting the rotating mechanism driving electrodes rod
7 rotate at a high speed；The rotary speed of the rotating mechanism driving electrodes rod 7 is 10000r/min；
Step 6: when the rotary speed of electrode bar 7 in step 5 reaches 10000r/min rotary speed, open etc. from
Sub- rifle 5, plasma melts the top free ends of the Top electrode rod in the presence of plasma gun 5, the metal of melting from
End under mental power function from electrode bar 7 is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into vertical
In the receipts powder drum 15 of the bottom of formula powder body of heater 1；The setting electric current of the plasma gun 5 is 4000A；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, closing plasma gun 5 and the feeding machine
Structure, unclamps bottom electrode rod and rotating mechanism connection, bottom electrode bar is fixed on vertical powder processed by the dynamic sealing mechanism vertically
On body of heater 1, it is ensured that vertical powder body of heater 1 processed is constantly in air-tight state, and the feed mechanism is run after a segment distance downwards, in institute
State and increase an electrode bar 7 between bottom electrode rod and rotating mechanism newly, lower end and the rotating mechanism screw thread of newly-increased electrode bar 7
Connection, the newly-increased upper end of electrode bar 7 and the lower end of bottom electrode rod is threadedly coupled, and now newly-increased electrode bar 7 is changed into bottom electrode
Rod, bottom electrode rod originally turns into new Top electrode rod；
Step 8: repeat step one is to step 7, realization continuously prepares globular metallic powder.
In the present embodiment, the material of the electrode bar 7 is titanium alloy.
Titanium alloy powder of the diameter prepared through the present embodiment less than 45 μm accounts for the 76wt% of total powder particle, powder effect processed
It is really good, and only need to take out the logical inert gas of a vacuum in pulverizing process, after the fusing of Top electrode rod is complete, then again
Continuous Top electrode rod, realizes continuous powder processed, and because electrode bar is to be vertically arranged, it is to avoid shadow of the self gravitation to its swing
Ring, and because rotating mechanism driving electrodes rod has higher rotary speed so that the titanium alloy cooled down in an inert atmosphere
More preferably, particle diameter is also uniform for the sphericity of spherical powder, while coordinating the feeding effect of feed mechanism makes electrode bar 7 and plasma gun
The distance between 5 pipette tips are constant, it is ensured that the stability of flouring technology.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain in.
Claims (10)
1. a kind of vertical powder manufacturing apparatus of plasma rotating electrode, it is characterised in that including vertical powder body of heater (1) processed, penetrate it is vertical
The electrode bar (7) of powder body of heater (1) bottom processed and the plasma gun (8) being arranged at the top of vertical powder body of heater (1) processed, the vertical system
The bottom of powder body of heater (1) is vertically arranged with many guide rods (4), and the bottom of the guide rod (4) is fixedly connected with fixed stop
(20), it is slidably fitted with dynamic beam (6), the dynamic beam (6) and is provided with and the electrode bar (7) end on the guide rod (4)
Rotating mechanism and the feed mechanism for promoting electrode bar (7) connect and being rotated for driving electrodes rod (7), the electrode
Set between rod (7) and the bottom wall of vertical powder body of heater (1) processed on dynamic sealing mechanism, the vertical powder body of heater (1) processed and be connected with use
In the receipts powder drum (15) for collecting globular metallic powder, the pumped vacuum systems vacuumized for vertical powder body of heater (1) processed and it is used for
To fill the inert gas protection system of protective gas in vertical powder body of heater (1) processed.
2. a kind of vertical powder manufacturing apparatus of plasma rotating electrode according to claim 1, it is characterised in that the whirler
Structure includes electro spindle (10) and electric rotating machine (12), offers mounting hole on the dynamic beam (6) immediately below electrode bar (7), institute
State electro spindle (10) to be rotatably installed in mounting hole, the electro spindle (10) is fixedly connected with the bottom of electrode bar (7), the rotation
Rotating motor (12) is fixed on the side of dynamic beam (6), and the output shaft of the electric rotating machine (12) passes through transmission belt one (11) and electricity master
Axle (10) rotates connection.
3. a kind of vertical powder manufacturing apparatus of plasma rotating electrode according to claim 2, it is characterised in that the feeding machine
Structure includes being fixed on the feeding motor (2) on dynamic beam (6), the feed screw nut (5) through dynamic beam (6), the feeding motor (2) with
The screw mandrel of feed screw nut (5) is connected by transmission belt two (3), and one end of the feed screw nut (5) turns with vertical powder body of heater (1) processed
Dynamic connection, the other end of the feed screw nut (5) is rotated with fixed stop (20) to be connected, the dynamic beam (6) and feed screw nut (5)
Nut be fixedly connected.
4. the vertical powder manufacturing apparatus of a kind of plasma rotating electrode according to claim 1,2 or 3, it is characterised in that described
Inert gas protection system includes the inertia gas cylinder (19) equipped with inert gas, and the inertia gas cylinder (19) passes through inertia breather pipe
Connected with vertical powder body of heater (1) processed.
5. the vertical powder manufacturing apparatus of a kind of plasma rotating electrode according to claim 1,2 or 3, it is characterised in that described
Pumped vacuum systems includes vavuum pump (18) and connection vavuum pump (18) and the vacuum pipe (16) of vertical powder body of heater (1) processed, institute
State the detecting element (17) being provided with vavuum pump (18) for detecting vacuum.
6. the vertical powder manufacturing apparatus of a kind of plasma rotating electrode according to claim 1,2 or 3, it is characterised in that described
Dynamic sealing mechanism includes being sleeved on V-shaped seal ring (21) on electrode bar (7), locking nut (22), constraint bearing (23), anti-
Dirt set (24), water collar (25) and gland (26), the water collar (25) are arranged on vertical powder stove processed by constraining bearing (23)
Between the bottom wall and electrode bar (7) of body (1), the dirt-proof boot (24) is located at the top of water collar (25), gland (26) position
In the bottom of water collar (25) and it is bolted on water collar (25), the V-shaped seal ring (21) is located at gland (26)
Between electrode bar (7), top pressure locks V-shaped seal ring (21) to the locking nut (22) upwards；It is described constraint bearing (23) be
Angular contact bearing.
7. the vertical powder manufacturing apparatus of a kind of plasma rotating electrode according to claim 1,2 or 3, it is characterised in that described
The inner bottom surface of vertical powder body of heater (1) processed is to offer conical grooves at cone, the bottom centre of the vertical powder body of heater (1) processed
(9), electrode bar (7) passes through the bottom centre of the conical grooves (9), and the guide rod (4) is fixed on the bottom of conical grooves (9).
8. the vertical powder manufacturing apparatus of a kind of plasma rotating electrode according to claim 1,2 or 3, it is characterised in that described
Receive and be provided with stop valve (14) between powder drum (15) and vertical powder body of heater (1) processed.
9. a kind of work that globular metallic powder is prepared using the vertical powder manufacturing apparatus of plasma rotating electrode as claimed in claim 1
Skill, it is characterised in that the technique comprises the following steps：
Step 1: metal bar material is processed into a diameter of 15mm~180mm, length is 100mm~2000mm electrode bar (7),
And the roundness deviation of electrode bar (7) is less than 0.08mm, linearity deviation is less than 0.08mm/m, and roughness is less than 0.8um；The electricity
One end of pole rod (7) is machined with the internal thread being engaged with the rotating mechanism, the other end of the electrode bar (7) be machined with
The external screw thread that the internal thread is engaged；
It is installed to Step 2: taking electrode bar (7) described in two steps one to be screwed successively on the rotating mechanism, wherein with
The electrode bar (7) that the rotating mechanism is directly connected to is located at bottom, and labeled as bottom electrode rod, another electrode bar (7) is labeled as
Top electrode rod；
Worn Step 3: opening two electrode bars (7) being arranged in the feed mechanism actuation step two on the rotating mechanism
The dynamic sealing mechanism of the bottom of the vertical powder body of heater (1) processed is crossed, the Top electrode rod is located at the inside of vertical powder body of heater processed,
The bottom electrode rod is located at the outside of vertical powder body of heater (1) processed；
Step 4: the feed mechanism described in the step 3 by the vertical powder body of heater (1) processed of Top electrode rod feeding it is interior after, startup institute
State the vertical powder body of heater (1) processed of pumped vacuum systems and carry out vacuumize process, until the vacuum of vertical powder body of heater (1) processed reaches 5
×10-3Pa~2 × 10-2Pa, is then filled with high-purity lazy by inert gas protection system (9) into vertical powder body of heater (1) processed
Property gas carry out atmosphere protection；
Step 5: after high-purity inert gas is full of in vertical powder body of heater (1) processed described in step 4, starting the whirler
Structure driving electrodes rod (7) rotates at a high speed；
Step 6: when the rotary speed of electrode bar (7) in step 5 reaches specified rotary speed, plasma gun (5) is opened,
The top free ends plasma fusing of the Top electrode rod in the presence of plasma gun (5), the metal of melting centrifugation masterpiece
End from electrode bar (7) under is thrown out of, and molten drop is quickly cooled to spheric granules in inert gas environment, falls into vertical system
In the receipts powder drum (15) of powder body of heater (1) bottom；
Step 7: after the Top electrode rod described in the step 6 has been completely melt, plasma gun (5) and the feed mechanism are closed,
Bottom electrode rod and rotating mechanism connection are unclamped, bottom electrode bar is fixed on vertical powder body of heater processed by the dynamic sealing mechanism vertically
(1) on, then by the feed mechanism along guide rod (4) slide downward, increased newly between the bottom electrode rod and rotating mechanism
A piece electrode bar (7), the lower end of newly-increased electrode bar (7) is threadedly coupled with the rotating mechanism, newly-increased electrode bar (7) it is upper
End and the lower end of bottom electrode rod are threadedly coupled, and now newly-increased electrode bar (7) is changed into bottom electrode rod, and bottom electrode rod originally turns into
New Top electrode rod；
Step 8: repeat step one is to step 7, realization continuously prepares globular metallic powder.
10. method according to claim 9, it is characterised in that feed mechanism described in step 3 is sent to electrode bar (7)
Enter speed for 0.1mm/s~20mm/s；The rotary speed of the rod of rotating mechanism driving electrodes described in step 5 (7) is 10000r/
Min~150000r/min.
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