CN207188797U - The equipment that combined type rotation electrode manufactures spherical powder - Google Patents
The equipment that combined type rotation electrode manufactures spherical powder Download PDFInfo
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- CN207188797U CN207188797U CN201720988684.XU CN201720988684U CN207188797U CN 207188797 U CN207188797 U CN 207188797U CN 201720988684 U CN201720988684 U CN 201720988684U CN 207188797 U CN207188797 U CN 207188797U
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Abstract
A kind of equipment of combined type rotation electrode manufacture spherical powder, there is the right-hand member for the body of heater being seated on pedestal vacuum adapter to be connected with vacuum system, it is horizontal on the base that left end is provided with to be provided with the first electro spindle and current collecting equipment coaxially coupled, coaxial connection has power transmission shaft on current collecting equipment, drive shaft seal stretches into body of heater left part and by current collecting equipment water conservancy diversion, bar-shaped blank is supported on left part in body of heater, and the tail end of bar-shaped blank couples with the front end of power transmission shaft, right part level is provided with transferred arc plasma torch in body of heater；The second electro spindle is vertically installed with the vertical lifting mechanism of pedestal upper end, second electric main shaft sealing, which stretches into the coaxial connection of lower portion of furnace body and its upper end, rotation electrode, rotation electrode is located at the underface of bar-shaped blank front end, and the both sides of rotation electrode are symmetrically in tilted layout two non transferred arc plasma torches.The utility model separates rotation electrode and conduction, will melt and throws away separation, improves fine powder rate and production efficiency.
Description
Technical field
The utility model belongs to powder metallurgical technology, and in particular to a kind of combined type rotation electrode manufactures spherical powder
Equipment.
Background technology
The method of production spherical metal powder mainly has three major types：Blowing process；Rotating pan；Rotary electrode method.For rear
Both, in theory it has been proved that the diameter and rotating speed of powder, the relation of electrode diameter：Wish powder
Granularity it is small it is necessary to improve rotating speed or increase electrode diameter
Blowing process is that molten metal is blown out into drop with high pressure argon gas, cools down globulate during drop flight in the air.This
Kind method can produce very thin powder, but the shape of ball is bad, there is cavitation phenomena.Rotating pan has extensively in terms of low-melting-point metal
General application, such as produce tin spherical powder.Rotating disk is horizontal positioned and rotates at a high speed, and tin liquor flows into the center of rotating disk from top,
Flown under the influence of centrifugal force to surrounding, form spherical powder in the air.The spherical powder of refractory metal as titanium is produced,
Rotating disk must be copper, and want water cooling.The copper dish of high temperature titanium liquid and water cooling contact, and shape becomes solid-state to contact surface quickly.Must
Liquid flies out before the solidification of titanium liquid must be ensured, technically difficult, there are no industrialized production.
Existing 50 years or so the history of rotary electrode method, but have the shortcomings that several big：1st, rotating speed is relatively low, is usually no more than
12000 revs/min.2nd, serious vibration, bearing easily damage.3rd, it is conductive using carbon brush, carbon brush and collector contact, frictional heating,
Although take the measures such as water spray, after rotating speed is high, the linear velocity that allows more than carbon brush easily causes failure.This three big is lacked
Point make it that the fault rate of equipment is very high, and the production time, which is mostly used in, to be changed bearing and repair facility.In general class's yield 20 is public
Jin or so.
Utility model content
The utility model provides a kind of equipment of combined type rotation electrode manufacture spherical powder, by rotation electrode and conductive point
From will melt and throw away separation, by increasing the diameter of rotation electrode, improve fine powder rate.The fault rate of equipment is reduced, improves life
Produce efficiency.
Technical solution of the present utility model：A kind of equipment of combined type rotation electrode manufacture spherical powder, including stove
Body, and body of heater is seated on pedestal；It is characterized in that：There is the right-hand member of the body of heater vacuum adapter to be connected with vacuum system, left end
It is horizontal on the guide rail of the base upper surface to be provided with the first electro spindle and current collecting equipment provided with base, on first electro spindle
Coaxial connection has current collecting equipment, and coaxially coupling on the current collecting equipment has power transmission shaft, and the drive shaft seal stretches into body of heater left part
And left part in body of heater, and the tail end of bar-shaped blank are supported on by horizontally-guided device by current collecting equipment water conservancy diversion, bar-shaped blank
Couple with the front end of power transmission shaft；Right part level is provided with transferred arc plasma torch in the body of heater, and transferred arc plasma torch, bar-shaped
Blank and power transmission shaft are located on same axis；The upper end of the pedestal is provided with vertical lifting mechanism, the vertical lifting mechanism
On be vertically installed with the second electro spindle, second electric main shaft sealing stretches into lower portion of furnace body and coaxially connection has electric rotating for its upper end
Pole, the rotation electrode are located at the underface of bar-shaped blank front end, the both sides of the rotation electrode be in tilted layout two it is non-diverting
Arc plasma gun, and non transferred arc plasma torch is along the radius tangential direction symmetric configuration of rotation electrode upper surface 1/2.
The upper end of the body of heater has bell, and plasma gun mobile device and measurement apparatus are housed on the bell, described
Transferred arc plasma torch is arranged on the lower section of plasma gun mobile device.
Two non transferred arc plasma torch working ends tilt down 30-45 degree is arranged symmetrically in rotation electrode two
Side, and the controlling organization by being arranged on bell carries out the adjustment of height and angle.
The upper end of second electro spindle (16) has taper connection hole (13), and the lower end of the rotation electrode (18) has
Tapered joint head (17), connecting hole (13) is inserted by connector (17) the second electro spindle (16) and rotation electrode (18) is coaxial
Connection.
The bottom of the body of heater (2), which is provided with, rolls up imperial formula collection device (15), and discharging bin is connected with below the body of heater (2)
(14), spherical powder is scraped into discharging bin (14) by rolling up imperial formula collection device (15).
The utility model has the advantage that compared with prior art and effect：
1st, the utility model is by rotation electrode and conductive separation, and current collecting equipment is no longer to rotate at a high speed, and carbon brush is no longer by line
The limitation of speed, reliability and life-span are increased dramatically.
2nd, the utility model will melt and throw away separation, and fusing needs very high power.The untransferable arc plasma of argon gas
Rifle be difficult accomplish it is high-power, and transferred arc plasma torch can accomplish it is high-power.Rotation electrode is mended with untransferable arc ion gun
Heat, small-power.
3rd, copper rotating disk is changed to titanium dish (i.e. rotation electrode) by the utility model, without water cooling, is overcome and is revolved using copper
Rotating disk produces the problem brought during titanium spherical powder.And then by increasing the diameter of rotation electrode, improve fine powder rate.
4th, the utility model rotation electrode is done tapered with the part being connected with electro spindle, and electro spindle cooperation by cone
Degree, without threaded connection, such connection method makes error minimum.So vibration of the rotation electrode in high-speed rotation, can be with
Reach controlled level.
5th, the utility model, by adjusting the position of transferred arc plasma torch, makes blank by the rotation at a slow speed of blank
Section is melted in proper order, and less power can melt heavy in section blank.
6th, the utility model rotation electrode is consumable, and the height that electrode length reduces to certain must be changed.Although production
Process is discontinuous, it is necessary to changes rotation electrode.But if the diameter 120mm of electrode, length 200mm, weight 10.2 are consumed
Kilogram, the diameter 100mm of blank, length 2600mm, 91.8 kilograms of weight, the yield in each cycle is 102 kilograms, is still
High efficiency.
7th, prior art requires that the external diameter of blank is consistent, and surface roughness is 1.6 or so.And the utility model is without this
The requirement of sample, blank can be welded by multiple short material, weld seam need not be handled.Greatly improve the utilization rate of raw material.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the schematic layout pattern of the utility model non transferred arc plasma torch,
Fig. 3 is the attachment structure schematic diagram of the utility model rotation electrode and the second electro spindle.
Embodiment：
A kind of embodiment of the present utility model is described with reference to accompanying drawing 1,2,3.
A kind of equipment of combined type rotation electrode manufacture spherical powder, including body of heater 2, and body of heater 2 is seated on pedestal 1；
There is the right-hand member of the body of heater 2 vacuum adapter 3 to be connected with vacuum system, and left end is provided with base 12, the upper surface of base 12
Horizontal on guide rail to be provided with the first electro spindle 11 and current collecting equipment 10, coaxially coupling on first electro spindle 11 has current collecting equipment
10, on the current collecting equipment 10 coaxial connection have power transmission shaft 9, the sealing of power transmission shaft 9 stretches into the left part of body of heater 2 and by collecting Denso
10 water conservancy diversion are put, bar-shaped blank 21 is supported on left part in body of heater 2, and the tail end and biography of bar-shaped blank 21 by horizontally-guided device 22
The front end connection of moving axis 9；Right part level is provided with transferred arc plasma torch 20, and transferred arc plasma torch 20, rod in the body of heater 2
Shape blank 21 and power transmission shaft 9 are located on same axis；The upper end of the pedestal 1 is provided with vertical lifting mechanism 8, the vertical liter
The second electro spindle 16 is vertically installed with descending mechanism 8, it is coaxial that the bottom of body of heater 2 and its upper end are stretched into the sealing of the second electro spindle 16
Connection has a rotation electrode 18, and the rotation electrode 18 is located at the underface of the bar-shaped front end of blank 21, and the two of the rotation electrode 18
Side is in tilted layout two non transferred arc plasma torches 19, and non transferred arc plasma torch 19 is along the upper surface 1/2 half of rotation electrode 18
Footpath tangential direction symmetric configuration.
The upper end of the body of heater 2 has bell 4, and plasma gun mobile device 5 and measurement apparatus 6 are housed on the bell 4,
The transferred arc plasma torch 20 is arranged on the lower section of plasma gun mobile device 5.Two non transferred arc plasma torches 19
Working end tilts down the both sides that 30-45 degree is arranged symmetrically in rotation electrode 18, and the controlling organization by being arranged on bell 4
24 carry out the adjustment of height and angle.The upper end of second electro spindle 16 has taper connection hole 13, the rotation electrode 18
Lower end there is tapered joint head 17, by connector 17 insert connecting hole 13 second electro spindle 16 and rotation electrode 18 is coaxial
Connection.The bottom of the body of heater 2, which is provided with, rolls up imperial formula collection device 15, and the lower section of the body of heater 2 is connected with discharging bin 14, passes through volume
Imperial formula collection device 15 scrapes spherical powder into discharging bin 14.
Operation principle：Open feed bin door 23 bar-shaped blank 21 is placed on guider 22, pass through the rolling on base 12
Ballscrew feed arrangement and the first electro spindle 11 drive the rotary motion at a slow speed forward of bar-shaped blank 21, after reaching precalculated position, close
Close feed bin door 23.The plasma arc that the transferred arc plasma torch 20 that the bar-shaped opposite of blank 21 is equipped with is launched melts blank, melts
Liquid the center of lower section rotation electrode 18 upper surface is fallen into wire (or drop-wise) under gravity.Rotation electrode 18 exists
Starting stage, reach certain temperature by non transferred arc plasma torch 19 to preheat.After liquid is fallen, revolved at a high speed in rotation electrode 18
Film forming and to peripolesis in the presence of turning, splits into fine drop in the adjacent edges film of rotation electrode 18, flies to aerial.
Aerial drop forms spherical under surface tension effects.Fall after nodularization in the groove below body of heater, dress is collected by rolling up imperial formula
15 are put, powder is scraped into discharging bin 14.Due to using non-rotating plasma gun, rotation electrode does not have electric current by thus the
Two electro spindles 16 above do not have current collecting equipment, and rotation electrode can be joined directly together with electro spindle.The feed speed of blank is adjusted, is made
The electric current of sum transferred arc plasma torch 20 matches, and (i.e. lifting electric rotating is compensated after rotation electrode 18 is lossy
Pole), can be with adjust automatically into after normal operating conditions.
Plasma arc caused by two non transferred arc plasma torches of the utility model, beats on rotation electrode upper surface, can
Using the supplement as temperature and regulation.The speed of plasma arc flame, can be to liquid film far above the linear velocity of rotation rotation electrode
Acceleration is played, is advantageous to the cracking of liquid film, improves fine powder rate.Two non transferred arc plasma torches can be with adjusting position and work(
Rate, the division of film is set to reach optimal state, to adapt to different technological requirements.The utility model rotation electrode passes through taper
Attachment means are convenient to be accurately embedded in electro spindle again, and guarantee is vibrated in control range when in use.Rotation electrode at work will
Consumption, highly becomes short, can be compensated within the specific limits by vertical lifting mechanism 8.
There is sealing relationship between the utility model power transmission shaft, the second electro spindle and body of heater, because sealing station is relatively fixed,
Precision and finish can be made very high herein, be advantageous to seal, and not require that sealing ring is pressed very tight, mitigate and rotate at a high speed
The abrasion of lower seal, by the pressure-fired of furnace chamber, the air in the external world is not allowed to enter by the gap of sealing ring in stove.In bell 4
On thermometric be installed and measure the measurement apparatus 6 of rotation electrode upper surface height to adjust technological parameter.Body of heater is stainless steel
Make, the place radiated by plasma arc, is Double water-cooled.Body of heater vacuumized by vacuum adapter 3 reach predetermined vacuum degree with
Afterwards, valve is closed, argon gas is filled with to body of heater, keeps pressure-fired, equipment works under pressure-fired.
Main technical parameter is as follows：
Blank：50~300mm of diameter, 1~4 meter of length.It can be welded by short material；
Transferred arc plasma torch：Maximum current 2000A, floating voltage 100V, operating voltage 40V or so；
Rotation electrode, 80~200mm of diameter, 200~500mm of length；Rotating speed：10000~26000 revs/min；
Non transferred arc plasma torch, maximum current 500A, voltage：40~120V；
Body of heater 2600~3000mm of internal diameter, with Double water-cooled.With with vacuum pump set, argon-filling device and Auto-control of Micro-pressure dress
Put.
Technical process：With blank diameter 100mm, length 2600mm, the diameter 120mm of rotation electrode, length 400mm (contain
Conical section) exemplified by.
The first step, rotation electrode and tapered joint head are welded, finished again, make dynamic balancing by the standard of rotating shaft.
Second step, rotation electrode is inserted onto the second electro spindle, test running.Below 7000 revs/min, vibration values are little
In 2.0.
3rd step, blank is loaded into guider, and the head of power transmission shaft fixes, and makes conductive reliable.
4th step, start vacuum system, body of heater is vacuumized.When vacuum reaches 0.1Pa, stopped leakage in the roof, Pressure Rise Rate is not
More than 0.6Pa.After Pressure Rise Rate is qualified, argon gas is poured, to after 0.1 atmospheric pressure, is vacuumized again, shutoff valve when reaching 0.05Pa
Door, argon gas is filled with into stove, to 1.05 atmospheric pressure (0.05) higher than air.
5th step, when the second electro spindle of startup reaches 10000 revs/min, start non transferred arc plasma torch 19, make electric rotating
Pole is heated to more than 200 DEG C (rubescent).
6th step, start blank rotating device.Start transferred arc plasma torch 20, reach the electric current of technological requirement (such as
1200A).Blank melts, and has liquid to drip to the centre of rotation electrode and throws away.Moved up and down by plasma gun mobile device 5
The position of transferred arc plasma torch 20, the section of blank is melted in proper order, heavy in section blank can be melted with less power.
7th step, the rotating speed of rotation electrode reach technological requirement (such as 16000 turns), adjust the work(of non transferred arc plasma torch
Rate, establish stable velocity field.Non transferred arc plasma torch is increased while non transferred arc plasma torch electric current is gradually reduced
Air-flow, to maintain the malleation of body of heater.
8th step, the burn-off rate of blank is adjusted, reduce the loss of rotation electrode 18 as far as possible.When the height of rotation electrode drops
When low 200 millimeters, stop melting.
9th step, after electric current stopping after 30 minutes, open the imperial formula collection device 15 of volume and discharge.
Above-described embodiment, simply preferred embodiment of the present utility model, not it is used for limiting the utility model practical range,
Therefore all equivalent variations done with content described in the utility model claims, the utility model claims model all should be included in
Within enclosing.
Claims (5)
1. a kind of equipment of combined type rotation electrode manufacture spherical powder, including body of heater (2), and body of heater (2) is seated in pedestal (1)
On；It is characterized in that：There is the right-hand member of the body of heater (2) vacuum adapter (3) to be connected with vacuum system, and left end is provided with base (12),
It is horizontal on the guide rail of base (12) upper surface to be provided with the first electro spindle (11) and current collecting equipment (10), first electro spindle
(11) coaxial connection has current collecting equipment (10) on, and coaxially coupling on the current collecting equipment (10) has power transmission shaft (9), the power transmission shaft
(9) sealing stretches into body of heater (2) left part and passes through horizontally-guided device (22) by current collecting equipment (10) water conservancy diversion, bar-shaped blank (21)
Body of heater (2) interior left part is supported on, and the tail end of bar-shaped blank (21) couples with the front end of power transmission shaft (9)；It is right in the body of heater (2)
Portion's level is provided with transferred arc plasma torch (20), and transferred arc plasma torch (20), bar-shaped blank (21) and power transmission shaft (9) are located at
On same axis；The upper end of the pedestal (1) is provided with vertical lifting mechanism (8), vertically pacifies on the vertical lifting mechanism (8)
Equipped with the second electro spindle (16), the coaxial connection in body of heater (2) bottom and its upper end is stretched into the second electro spindle (16) sealing rotation
Turning electrode (18), the rotation electrode (18) is located at the underface of bar-shaped blank (21) front end, and the two of the rotation electrode (18)
Side is in tilted layout two non transferred arc plasma torches (19), and non transferred arc plasma torch (19) is along rotation electrode (18) upper surface
1/2 radius tangential direction symmetric configuration.
2. a kind of equipment of combined type rotation electrode manufacture spherical powder according to claim 1, it is characterized in that：The stove
The upper end of body (2) has bell (4), and plasma gun mobile device (5) and measurement apparatus (6) are housed on the bell (4), described
Transferred arc plasma torch (20) is arranged on the lower section of plasma gun mobile device (5).
3. a kind of equipment of combined type rotation electrode manufacture spherical powder according to claim 1 or 2, it is characterized in that：Institute
State two non transferred arc plasma torch (19) working ends and tilt down the both sides that 30-45 degree is arranged symmetrically in rotation electrode (18),
And the controlling organization (24) by being arranged on bell (4) carries out the adjustment of height and angle.
4. a kind of equipment of combined type rotation electrode manufacture spherical powder according to claim 3, it is characterized in that：Described
The upper end of two electro spindles (16) has taper connection hole (13), and the lower end of the rotation electrode (18) has tapered joint head
(17), by connector (17) insert connecting hole (13) by the second electro spindle (16) with rotation electrode (18) is coaxial couples.
5. a kind of equipment of combined type rotation electrode manufacture spherical powder according to claim 4, it is characterized in that：The stove
The bottom of body (2), which is provided with, rolls up imperial formula collection device (15), discharging bin (14) is connected with below the body of heater (2), by rolling up dragon
Formula collection device (15) scrapes spherical powder into discharging bin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988684.XU CN207188797U (en) | 2017-08-09 | 2017-08-09 | The equipment that combined type rotation electrode manufactures spherical powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988684.XU CN207188797U (en) | 2017-08-09 | 2017-08-09 | The equipment that combined type rotation electrode manufactures spherical powder |
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| Publication Number | Publication Date |
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| CN207188797U true CN207188797U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469189A (en) * | 2021-01-28 | 2021-03-09 | 西安赛隆金属材料有限责任公司 | Apparatus and method for manufacturing powder material |
-
2017
- 2017-08-09 CN CN201720988684.XU patent/CN207188797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469189A (en) * | 2021-01-28 | 2021-03-09 | 西安赛隆金属材料有限责任公司 | Apparatus and method for manufacturing powder material |
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