CN109202072A - A kind of electron gun arrangements of coaxial powder-feeding - Google Patents
A kind of electron gun arrangements of coaxial powder-feeding Download PDFInfo
- Publication number
- CN109202072A CN109202072A CN201810235852.7A CN201810235852A CN109202072A CN 109202072 A CN109202072 A CN 109202072A CN 201810235852 A CN201810235852 A CN 201810235852A CN 109202072 A CN109202072 A CN 109202072A
- Authority
- CN
- China
- Prior art keywords
- powder
- water
- feeding
- electron gun
- cooled cathode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/20—Cooling means
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- 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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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 present invention relates to a kind of electron gun arrangements of coaxial powder-feeding.The device includes coaxial mounted water-cooled cathode, anode, powder feeding bucket, feeding head, cup insuator, focus coil and cladding target seeker.Water-cooled cathode is provided with through-hole and concave spherical surface shape cavity along central axis；Powder feeding bucket is located at the outer upper ends of water-cooled cathode, and powder feeding bucket includes the vibration regulating mechanism for adjusting metal powder powder sending quantity in powder feeding bucket；Feeding head is located in the chamber of electron gun, and the upper end of feeding head is mounted in the through-hole of water-cooled cathode, is connected between feeding head and powder feeding bucket by leading tube cell；Anode is located at water-cooled cathode lower end, and in the periphery of feeding head, anode is connect by cup insuator with water-cooled cathode；Focus coil is located in the middle section gun body of electron gun, the lower end connection of middle section gun body and anode；Cladding target seeker is located at the outlet port of the lower section gun body of electron gun, and cladding target seeker has through-hole.The coaxial of metal powder and electron beam is realized, the application field of electron gun greatly improved.
Description
Technical field
The present invention relates to increases material manufacturing technology fields, melt metal powder using circulating electron beam spot more particularly to a kind of
Increasing material manufacturing device, be concretely a kind of electron gun arrangements of coaxial powder-feeding.
Background technique
Increases material manufacturing technology refers to based on discrete-accumulation principle, by the section of part three-dimensional data driving direct manufacturing parts
Learn technical system.Metal increases material manufacturing technology can significantly shorten the equipment preparation period, improve equipment manufacturing process, improve equipment
Adaptability brings qualitative leap, it can be achieved that complex equipment lightweight, high-strength, inexpensive and Agility quickly manufacture, for equipment preparation.
Currently, specifically including that electron beam selective melting increasing material manufacturing by the metal increases material manufacturing technology of heat source of high energy beam
Increases material manufacturing technology, laser direct deposition increasing material manufacturing skill are melted in technology, electron beam fuse increases material manufacturing technology, selective laser
Art, plasma arc increases material manufacturing technology etc..Compared to other techniques, electron beam and energy conversion efficiency when metal function are higher,
Reach 80% or more.Prepare the with the obvious advantage of the refractory metal parts such as titanium aluminium.
In recent years, metal increasing material manufacturing develops to large-size components manufacturing technology, how to realize the synchronous system of multi-laser beam
It makes, improves manufacture efficiency, guarantee the synchronous consistency increased between material tissue and manufacture bond area quality is the difficult point of development.
Since current conventional electron gun includes multiple functions system, limited by structure, so that the volume of electron gun is very
Hardly possible miniaturization, it is difficult to obtain the cladding header structure of laser direct deposition coaxial powder-feeding, this is just limited using electron beam as heat source, gold
Category powder is application development of the increases material manufacturing technology in band large-scale metal part manufacturing field of raw material.Therefore, it inventor provides
A kind of electron gun arrangements of coaxial powder-feeding.
Summary of the invention
The embodiment of the invention provides a kind of electron gun arrangements of coaxial powder-feeding, and the arrangement achieves metal powders along electronics
The axis powder feeding of rifle, and melt to form droplet transfer forming at annular beam spot focusing, apparatus structure is rationally compact, has expanded electricity
The application field of beamlet increases material manufacturing technology.
The embodiment of the present invention proposes a kind of electron gun arrangements of coaxial powder-feeding, which includes: water-cooled cathode, sun
Pole, powder feeding bucket, feeding head, cup insuator, focus coil and cladding target seeker.Wherein, water-cooled cathode is located at the electron gun
Upper end, the water-cooled cathode is provided with through-hole and concave spherical surface shape cavity along central axis；Powder feeding bucket is located at the outer of the water-cooled cathode
Portion upper end, the powder feeding bucket include vibration regulating mechanism, and the vibration regulating mechanism is for adjusting metal powder in the powder feeding bucket
Powder sending quantity；Feeding head is located in the chamber of the electron gun, intracavitary to the electron gun for sending metal powder, described to send
The upper end of prostitute is mounted in the through-hole of the water-cooled cathode, is connected between the feeding head and the powder feeding bucket by leading tube cell
It is logical；Anode is located at the water-cooled cathode lower end, and in the periphery of the feeding head, the anode by cup insuator with it is described
Water-cooled cathode connection；Focus coil is located in the middle section gun body of the electron gun, is used for Electron Beam Focusing into beam spot, institute
Middle section gun body is stated to connect with the lower end of the anode；Cladding target seeker is located at the outlet port of the lower section gun body of the electron gun,
The cladding target seeker has through-hole, for sending out metal drop beam；Also, the water-cooled cathode, the anode, the powder feeding
Head, tube cell, the focus coil and the cladding target seeker of leading are co-axially mounted.
In the first possible implementation, the upper surface of the water-cooled cathode is equipped with fixed ring, the water-cooled cathode
Insulated enclosure snap ring is equipped between the fixed ring, the feeding head is mounted on the insulated enclosure snap ring, so that described
The lower end of fixed ring compresses the upper surface of the feeding head, it is described lead tube cell protruded by the central through hole of the fixed ring it is described
Feeding head is intracavitary.
In conjunction with above-mentioned possible implementation, in the second possible implementation, the inside of the water-cooled cathode is set
It is equipped with cooling water circulation channel, the cathode water inlet pipe and cathode outlet pipe of the cooling water circulation channel are installed in the water cooling
On cathode, gas-guide tube and high-voltage connection end are additionally provided on the water-cooled cathode, the gas-guide tube is passed through the chamber of the water-cooled cathode
It is indoor.
It is in the third possible implementation, intracavitary in the bucket of the powder feeding bucket in conjunction with above-mentioned possible implementation
Metal powder is injected, the vibration regulating mechanism of the powder feeding bucket includes ultrasonic generator and powder feeding adjusting rod, and the ultrasound occurs
Device is connect by signal transmssion line with outside control power supply, and the ultrasonic generator drives the powder feeding adjusting rod vibration, described
Powder feeding adjusting rod is protruded into the powder feeding bucket and is contacted with the metal powder.
In conjunction with above-mentioned possible implementation, in the fourth possible implementation, in the top pail of the powder feeding bucket
Intracavitary to be equipped with partition, the ultrasonic generator is located on the partition, and the bottom of the powder feeding bucket is equipped with note powder mouth, the metal
Powder is intracavitary by the bucket that the note powder mouth injects the powder feeding bucket, and the note powder mouth is equipped with seal plug, for blocking
State note powder mouth.
In conjunction with above-mentioned possible implementation, in a fifth possible implementation, the bottom centre of the powder feeding bucket
Equipped with threaded joint, the end of the powder feeding adjusting rod is extended in the threaded joint, and the threaded joint is connect with the tube cell of leading.
In conjunction with above-mentioned possible implementation, in a sixth possible implementation, in described ultrasonic generator one end
The partition be equipped with compression spring, the compression spring is located at ultrasonic generator periphery in the shape of a spiral, for protecting
The ultrasonic generator is not under compression.
In conjunction with above-mentioned possible implementation, in the 7th kind of possible implementation, the feeding head is hollow length
Pyramidal structure, in the feeding head chamber with a narrow upper and lower width for being mounted on the electron gun, the feeding head and the water cooling
It is equipped with first annular sealing ring in the installation gap of cathode, the second ring is equipped between the feeding head and the insulated enclosure snap ring
Shape sealing ring.
In conjunction with above-mentioned possible implementation, in the 8th kind of possible implementation, on the wide end surface of the feeding head
It is mounted with that feeding head water inlet pipe and feeding head outlet pipe, the feeding head water inlet pipe are extended to by the central through hole of the fixed ring
In the chamber of the feeding head, the tube cell of leading is co-axially mounted in the feeding head.
In conjunction with above-mentioned possible implementation, in the 9th kind of possible implementation, the lower end of the anode is equipped with sun
The upper end of pole water inlet, the anode is equipped with anode water outlet, can be used for cooling down the anode.
In conjunction with above-mentioned possible implementation, in the tenth kind of possible implementation, the middle section gun body is equipped with the
One molecular pump interface flange, water inlet A and water outlet A, the middle section gun body is interior to be equipped with the first water cooling vapour lock, first water cooling
The inner surface of the short transverse outer surface of vapour lock and the middle section gun body is fitted close, and the inside of the first water cooling vapour lock is equipped with
Water cooling vapour lock water inlet pipe and water cooling vapour lock outlet pipe, the first molecular pump interface flange connect the first molecular pump, the water cooling
Vapour lock water inlet pipe is connected to the water inlet A, and the water cooling vapour lock outlet pipe is connected to the water outlet A.
In conjunction with above-mentioned possible implementation, in a kind of the tenth possible implementation, in middle section gun body lower end
Circumferential horizontal ledge is arranged in inner wall, and the bottom of the first water cooling vapour lock is connect with the focus coil and coaxial, the focusing
Coil is mounted in the circumferential horizontal ledge.
In conjunction with above-mentioned possible implementation, in the 12nd kind of possible implementation, the lower section gun body is equipped with the
Two molecular pump interface flanges, the top wide end of the cladding target seeker are connect with the lower section gun body, and the cladding target seeker is
Pyramidal structure equipped with through-hole, the surface of the cladding target seeker are provided with cladding target seeker water inlet pipe and the water outlet of cladding target seeker
Pipe.
In conjunction with above-mentioned possible implementation, in the 13rd kind of possible implementation, in the outer of the water-cooled cathode
An insulating shroud is installed in portion, and the wall thickness of an insulating shroud has scheduled compressive resistance, highly higher than the water-cooled cathode,
For guaranteeing the dielectric strength of the inner surface of an insulating shroud.
To sum up, the electron gun arrangements of a kind of coaxial powder-feeding of the embodiment of the present invention, the device are direct for electron beam fuse
Increases material manufacturing technology is deposited, water-cooled cathode is crossed all, anode, feeding head, leads tube cell, focus coil and cladding target seeker along axis
Line is sequentially coaxially arranged from top to bottom, realizes the coaxial of metal powder and electron beam, electron gun arrangements greatly improved and increasing
Application field in material manufacture.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of the electron gun arrangements of coaxial powder-feeding of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of powder feeding bucket in the electron gun arrangements of the embodiment of the present invention.
In figure:
1- water-cooled cathode；101- cathode water inlet pipe；102- gas-guide tube；103- cathode outlet pipe；104 high-voltage connection ends；
2- anode；201- anode water inlet pipe；202- anode outlet pipe；
3- powder feeding bucket；301- signal transmssion line；302- compression spring；303- ultrasonic generator；304- partition；305- metal powder
End；306- powder feeding adjusting rod；307- threaded joint；308- infuses powder mouth；309- seal plug；
4- feeding head；401- feeding head water inlet pipe；402- feeding head outlet pipe；403- leads tube cell；
5- an insulating shroud；6- cup insuator；
7- the first water cooling vapour lock；701- water cooling vapour lock water inlet；702- water cooling vapour lock water outlet；
8- focus coil；The middle section 9- gun body；901- the first molecular pump interface flange；902- water inlet A；
903- water outlet A；10- fixed ring；11- molten drop beam；12- lower section gun body；1201- the second molecular pump interface flange；1202-
Water inlet B；1203- water outlet B；
13- cladding target seeker；1301- cladding target seeker water inlet pipe 1302- cladding target seeker outlet pipe.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment it is detailed
Thin description and attached drawing cannot be used to limit the scope of the invention for illustratively illustrating the principle of the present invention, i.e., of the invention
It is not limited to described embodiment, covers part, component and connection type under the premise of without departing from the spirit of the present invention
Any modification, replacement and improvement.
In the description of the present invention, it should be noted that unless otherwise indicated, the instructions such as term " upper end ", " lower end "
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.Art
Language " installation ", " setting " shall be understood in a broad sense, for example, it may be being mounted directly, can also be installed indirectly by intermediary.It is right
For those skilled in the art, visual concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Due to the limitation of current electron gun structure, either directly-heated type or indirect-heating electronic gun, electron beam line must
It must be exported from the axis of electron gun, conventional electrical rifle needs high voltage insulation structure, and vacuum obtains system, cooling system and electromagnetism tune
Control system, so that the volume of electron gun is difficult to minimize, it is difficult to obtain the cladding header structure of laser direct current deposition coaxial powder-feeding.Needle
To the structural limitations of the increasing material manufacturing electron gun arrangements of the prior art, inventor has invented a kind of electron gun dress of coaxial powder-feeding
It sets.
Fig. 1 is a kind of structural schematic diagram of electron gun arrangements of the embodiment of the present invention.
As shown in Figure 1, the fuse increasing material manufacturing electron gun arrangements that a kind of tow of the invention is coaxial, which includes water cooling
Cathode 1, anode 2, powder feeding bucket 3, feeding head 4, cup insuator 6, focus coil 8 and cladding target seeker 13 etc..Wherein, water cooling yin
Pole 1 is located at the upper end of electron gun, and water-cooled cathode 1 is provided with through-hole and concave spherical surface shape cavity along central axis；Powder feeding bucket 3 is located at water cooling
The outer upper ends of cathode 1, the powder feeding bucket 3 include vibration regulating mechanism, and vibration regulating mechanism can be used for adjusting metal in powder feeding bucket 3
The powder sending quantity of powder；Feeding head 4 is located in the chamber of electron gun, intracavitary to electron gun for sending metal powder, the feeding head 4
Upper end is mounted in the through-hole of water-cooled cathode 1, is connected between the feeding head 4 and powder feeding bucket 3 by leading tube cell 403；Anode 2 is located at
1 lower end of water-cooled cathode, and it is located at the periphery of feeding head 4, anode 2 is connect by cup insuator 6 with water-cooled cathode 1；Focal line
Circle 8 is located in the middle section gun body 9 of electron gun, for by Electron Beam Focusing at beam spot, and middle section gun body 9 and anode 2
Lower end connection；Cladding target seeker 13 is located at the outlet port of the lower section gun body 12 of electron gun, which has through-hole,
It can be used for sending out metal drop beam 11；Wherein, water-cooled cathode 1, anode 2, feeding head 4, lead tube cell 403, focus coil 8 and molten
Target seeker 13 is covered to be co-axially mounted.
By upper, in electron gun arrangements of the invention, water-cooled cathode 1, feeding head 4, leads tube cell 403, focus coil 8 at anode 2
And cladding target seeker 13 is sequentially coaxially arranged from top to bottom along axis, and forms the chamber with cavity, it will by powder feeding bucket 3
Metal powder is sent according to scheduled powder sending quantity to feeding head 4, is passed through in the electron beam for the high-energy density that feeding head 4 is formed about
After 8 electromagnetic focusing of focus coil, the fusion of metal powder being sent into tube cell 403 will be led and form metal drop beam 11, metal drop
Beam 11 is sent to specified area deposition via the centre bore of cladding seeker 13 and forms.Pass through the vibration regulating mechanism tune of powder feeding bucket 3
The powder outlet quantity of metal powder is saved, and feeding head 4 and other associated components are co-axially mounted, realizes metal powder and electron beam
Coaxial output, application field of the electron gun arrangements in increasing material manufacturing greatly improved.
It participates in shown in Fig. 1, specifically, water-cooled cathode 1 is tapered tubular structure wide at the top and narrow at the bottom, in water-cooled cathode 1
Portion is provided with cooling water circulation channel, for connecting water cooling unit, the cathode water inlet pipe 101 of cooling water circulation channel and cathode water outlet
Pipe 103 is installed in the upper surface of water-cooled cathode 1, and the lower end of water-cooled cathode 1 concaves to form concave spherical surface shape structure, and water cooling
The lower end surface of cathode 1 connect to form cavity by cup insuator 6 with anode 2, and connection gas stream is additionally provided on water-cooled cathode 1
Measure the gas-guide tube 102 of adjuster, and the high-voltage connection end 104 of connection negative high voltage.
In addition, the water-cooled cathode 1 of the present embodiment is made of aluminum alloy materials.And in the external installation of water-cooled cathode 1
An insulating shroud 5 wraps up water-cooled cathode 1, and the wall thickness of an insulating shroud 5 is high pressure resistant to reach 60kv or more, highly compares water
The high about 60mm of cold cathode 1, to guarantee that an insulating shroud 5 is sufficiently large along the dielectric strength of its inner surface.Water-cooled cathode 1 and anode 2
Between by the installation connection of cup insuator 6, the thickness of cup insuator 6 is not less than 60mm, and maximum pressure resistance is not less than 60kv.
The upper surface of water-cooled cathode 1 is equipped with fixed ring 10, and insulated enclosure snap ring is equipped between water-cooled cathode 1 and fixed ring 10
15, feeding head 4 is mounted on the boss inside insulated enclosure snap ring 15, is led tube cell 403 and is passed through the central through hole of fixed ring 10 simultaneously
It is intracavitary to protrude into feeding head 4.
Specifically, feeding head 4 is hollow long pyramidal structure, the chamber with a narrow upper and lower width for being mounted on electron gun of feeding head 4
Fixed ring 10 after feeding head 4 is placed on the boss inside seal snap ring 15, is installed in interior, uniformly distributed more in fixed ring 10
Fixed ring 10 is closely connect by a through-hole with screw with insulated enclosure snap ring 15, so that the lower end of fixed ring 10 compresses feeding head 4
Upper surface, first annular sealing ring 1501, feeding head 4 and insulation are equipped in the installation gap of feeding head 4 and water-cooled cathode 1
It is equipped with the second ring type seal 1502 between seal snap ring 15, for sealing installation gap, guarantees the sealing performance of device.
Feeding head water inlet pipe 401 and feeding head outlet pipe 402, feeding head water inlet are also mounted on the wide end surface of feeding head 4
Pipe 401 is extended to from fixed ring 10 in the chamber of feeding head 4, is led tube cell 403 and is co-axially mounted in feeding head 4.
In addition, as shown in Figure 1, being equipped with anode water inlet 201 in the lower end of anode 2, the upper end of anode 2 is discharged equipped with anode
Mouth 202, can be used for cooling down anode 2.
The lower end surface of anode 2 is connect by flange with middle section gun body 9, and the first molecule pump interface is equipped in middle section gun body 9
Flange 901, water inlet A 902 and water outlet A 903, middle section gun body 9 is interior to be equipped with the first water cooling vapour lock 7, the height of the first water cooling vapour lock 7
The inner surface for spending direction outer surface and middle section gun body 9 is fitted close, and the inside of the first water cooling vapour lock 7 is equipped with water cooling vapour lock water inlet pipe
701 and water cooling vapour lock outlet pipe 702, the first molecular pump interface flange 901 connects the first molecular pump, for guaranteeing in discharge cavity room
Vacuum degree reaches sets requirement, and water cooling vapour lock water inlet pipe 701 is connected to water inlet A 902, the connection water outlet of water cooling vapour lock outlet pipe 702
Mouth A903.
Circumferential horizontal ledge, the bottom of the first water cooling vapour lock 7 and focal line are also set up on the lower end inner wall of middle section gun body 9
The bottom of focus coil 8, is then mounted in the circumferential direction horizontal ledge by 8 connection of circle and coaxial.
Lower section gun body 12 is equipped with the second molecular pump interface flange 1201, the top wide end and lower section gun body of cladding target seeker 13
12 connections, cladding target seeker 13 are provided with the pyramidal structure of through-hole, the surface of cladding target seeker 13 be provided with cladding target seeker into
Water pipe 1301 and cladding target seeker outlet pipe 1302.
Fig. 2 is the structural schematic diagram of powder feeding bucket in the electron gun arrangements of the embodiment of the present invention.
Referring to figs. 1 and 2, the top pail of powder feeding bucket 3 it is intracavitary be equipped with partition 304, ultrasonic generator 303 be located at every
On plate 304, it is additionally provided with compression spring 302 on the partition 304 of 303 one end of ultrasonic generator, which sets in the shape of a spiral
In 303 periphery of ultrasonic generator, effect is to provide a pressure when powder feeding bucket 3 is inverted for metal powder 305, super for protecting
Acoustic generator 303 is not under compression, and after metal powder 305 is all sent out, longitudinal ductility of compression spring 302, which can achieve, to be sent
The greatest axial length of 3 inner cavity of powder bucket.The bottom of powder feeding bucket 3 is equipped with note powder mouth 308, and metal powder 305 passes through the note powder mouth 308
The bucket for injecting powder feeding bucket 3 is intracavitary, after filling it up with powder, blocks note powder mouth 308 by the seal plug 309 being arranged on note powder mouth 308,
It is additionally provided in the bottom centre of powder feeding bucket 3 in the threaded joint 307 for leading the connection of tube cell 403, the end of powder feeding adjusting rod 306 extends to spiral shell
In interface 307.
As shown in Fig. 2, the vibration regulating mechanism of powder feeding bucket 3 includes ultrasonic generator 303 and powder feeding adjusting rod 306, ultrasound
Generator 303 is connect by signal transmssion line 301 with outside control power supply, and ultrasonic generator 303 drives powder feeding adjusting rod 306 to shake
Dynamic, powder feeding adjusting rod 306 is protruded into powder feeding bucket 3 and is contacted with metal powder 305, by the vibration frequency for changing ultrasonic generator 303
Rate can change the vibration frequency of powder feeding adjusting rod 306, then change powder feeding adjusting rod 306 and metal powder 305, threaded joint
The frictional force of 307 inner surfaces achievees the purpose that adjust powder sending quantity.
The course of work of the electron gun arrangements of coaxial powder-feeding of the invention are as follows:
After each section water cooled pipeline of electron gun is accordingly connected, the first molecular pump of starting is pumped into row vacuum, works as water-cooled cathode
1, after anode 2, the composition discharge cavity house vacuum degree of feeding head 4 reach sets requirement, water-cooled cathode is connected into high pressure, starting second
Molecular pump；Inert gas will be imported in discharge cavity room, is acted in the discharge cavity room by high voltage electric field and form plasma discharge,
It is influenced by peripheral plasma anode effect, 4 conehead of feeding head is formed about the higher annular electron beam 14 of energy density, warp
After over-focusing 8 electromagnetic focusing of coil, the fusing of metal powder 305 that tube cell 403 is sent into is led on edge and forms metal drop beam 11, the gold
Belong to molten drop beam 11 and is sent to specified forming area deposition forming via the centre bore of cladding target seeker 13.
It should be noted that the height that the power of annular electron beam 14 can be imported by high-voltage connection end 104 on water-cooled cathode 1
The inert gas flow that pressure, gas-guide tube 102 import is adjusted；And the feed of metal powder 305 is by adjusting ultrasound hair
The vibration frequency that the vibration frequency of raw device 303 changes powder feeding adjusting rod 306 obtains, and in the course of work, metal powder 305 is gradually sent
Into compression spring 302 gradually extends, until metal powder 305 has all been sent.
To sum up, the electron gun arrangements of a kind of coaxial powder-feeding of the invention by water-cooled cathode, anode, feeding head, lead powder
Pipe, focus coil and cladding target seeker are sequentially coaxially arranged from top to bottom along axis, and powder feeding bucket is by metal powder according to predetermined
Powder sending quantity send to feeding head, the electron beam for the high-energy density that feeding head is formed about after focus coil electromagnetic focusing,
The fusion of metal powder being sent into tube cell will be led and form metal drop beam, metal drop beam is sent via the centre bore of cladding seeker
It is formed to specified area deposition.The powder outlet quantity of metal powder is adjusted by the vibration regulating mechanism of powder feeding bucket, and by feeding head
It is co-axially mounted with other associated components, realizes the coaxial output of metal powder and electron beam, electron gun arrangements greatly improved
Application field in increasing material manufacturing.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (14)
1. a kind of electron gun arrangements of coaxial powder-feeding characterized by comprising
Water-cooled cathode (1), is located at the upper end of the electron gun, and the water-cooled cathode (1) is provided with through-hole and concave spherical surface along central axis
Shape cavity；
Powder feeding bucket (3), is located at the outer upper ends of the water-cooled cathode (1), and the powder feeding bucket (3) includes vibration regulating mechanism, institute
State the powder sending quantity that vibration regulating mechanism is used to adjust the interior metal powder of the powder feeding bucket (3)；
Feeding head (4), is located in the chamber of the electron gun, intracavitary to the electron gun for sending metal powder, described to send
The upper end of prostitute (4) is mounted in the through-hole of the water-cooled cathode (1), is led between the feeding head (4) and the powder feeding bucket (3)
It crosses and leads tube cell (403) connection；
Anode (2) is located at the water-cooled cathode (1) lower end, and in the periphery of the feeding head (4), the anode (2) passes through ring
Shape insulator (6) is connect with the water-cooled cathode (1)；
Focus coil (8) is located in the middle section gun body (9) of the electron gun, is used for Electron Beam Focusing into beam spot, described
Middle section gun body (9) is connect with the lower end of the anode (2)；
Cladding target seeker (13) is located at the outlet port of the lower section gun body (12) of the electron gun, the cladding target seeker (13)
With through-hole, for sending out metal drop beam (11)；
Wherein, the water-cooled cathode (1), the anode (2), the feeding head (4), described lead tube cell (403), the focal line
Circle (8) and the cladding target seeker (13) are co-axially mounted.
2. the electron gun arrangements of coaxial powder-feeding according to claim 1, which is characterized in that the water-cooled cathode (1) it is upper
End face is equipped with fixed ring (10), is equipped with insulated enclosure snap ring (15) between the water-cooled cathode (1) and the fixed ring (10), institute
It states feeding head (4) to be mounted on the insulated enclosure snap ring (15), so that the lower end of the fixed ring (10) compresses the powder feeding
The upper surface of head (4), it is described to lead tube cell (403) feeding head (4) chamber is protruded by the central through hole of the fixed ring (10)
It is interior.
3. the electron gun arrangements of coaxial powder-feeding according to claim 2, which is characterized in that the water-cooled cathode (1) it is interior
Portion is provided with cooling water circulation channel, and the cathode water inlet pipe (101) and cathode outlet pipe (103) of the cooling water circulation channel are equal
It is mounted on the water-cooled cathode (1), is additionally provided with gas-guide tube (102) and high-voltage connection end (104) on the water-cooled cathode (1),
The gas-guide tube (102) is passed through in the chamber of the water-cooled cathode (1).
4. the electron gun arrangements of coaxial powder-feeding according to claim 1, which is characterized in that in the bucket of the powder feeding bucket (3)
Intracavitary injection metal powder (305), the vibration regulating mechanism of the powder feeding bucket (3) include ultrasonic generator (303) and powder feeding tune
Pole (306), the ultrasonic generator (303) are connect by signal transmssion line (301) with outside control power supply, the ultrasound hair
Raw device (303) drive powder feeding adjusting rod (306) vibration, the powder feeding adjusting rod (306) protrude into the powder feeding bucket (3) with
Metal powder (305) contact.
5. the electron gun arrangements of coaxial powder-feeding according to claim 4, which is characterized in that on the top of the powder feeding bucket (3)
Portion's bucket is intracavitary to be equipped with partition (304), and the ultrasonic generator (303) is located on the partition (304), the powder feeding bucket (3)
Bottom is equipped with note powder mouth (308), and the metal powder (305) injects the bucket of the powder feeding bucket (3) by note powder mouth (308)
Intracavitary, the note powder mouth (308) is equipped with seal plug (309), for blocking the note powder mouth (308).
6. the electron gun arrangements of coaxial powder-feeding according to claim 5, which is characterized in that in the bottom of the powder feeding bucket (3)
The heart is equipped with threaded joint (307), and the end of the powder feeding adjusting rod (306) extends in the threaded joint (307), the threaded joint
(307) it is connect with the tube cell (403) of leading.
7. the electron gun arrangements of coaxial powder-feeding according to claim 6, which is characterized in that in the ultrasonic generator
(303) partition (304) of one end is equipped with compression spring (302), and the compression spring (302) is located at described in the shape of a spiral
Ultrasonic generator (303) periphery, for protecting the ultrasonic generator (303) to be not under compression.
8. the electron gun arrangements of coaxial powder-feeding according to claim 2, which is characterized in that the feeding head (4) is hollow
Long pyramidal structure, in feeding head (4) chamber with a narrow upper and lower width for being mounted on the electron gun, the feeding head (4)
First annular sealing ring (1501) are equipped with the installation gap of the water-cooled cathode (1), the feeding head (4) and the insulation
The second ring type seal (1502) are equipped between seal snap ring (15).
9. the electron gun arrangements of coaxial powder-feeding according to claim 8, which is characterized in that the wide end of the feeding head (4)
Feeding head water inlet pipe (401) and feeding head outlet pipe (402) are mounted on face, the feeding head water inlet pipe (401) passes through described
The central through hole of fixed ring (10) extends in the chamber of the feeding head (4), and the tube cell (403) of leading is in the feeding head (4)
Inside it is co-axially mounted.
10. the electron gun arrangements of coaxial powder-feeding according to claim 1, which is characterized in that the lower end of the anode (2) is set
Have anode water inlet (201), the upper end of the anode (2) is equipped with anode water outlet (202), can be used for cooling down the anode (2).
11. the coaxial fuse increasing material manufacturing electron gun arrangements of tow according to claim 1, which is characterized in that in described
Section gun body (9) is equipped with the first molecular pump interface flange (901), water inlet A (902) and water outlet A (903), the middle section rifle
The first water cooling vapour lock (7), the short transverse outer surface of the first water cooling vapour lock (7) and the middle section gun body are equipped in body (9)
(9) inner surface is fitted close, and the inside of the first water cooling vapour lock (7) is equipped with water cooling vapour lock water inlet pipe (701) and water cooling gas
It hinders outlet pipe (702), the first molecular pump interface flange (901) connects the first molecular pump, the water cooling vapour lock water inlet pipe
(701) it is connected to the water inlet A (902), the water cooling vapour lock outlet pipe (702) is connected to the water outlet A (903).
12. the coaxial fuse increasing material manufacturing electron gun arrangements of tow according to claim 11, which is characterized in that described
Circumferential horizontal ledge, the bottom of the first water cooling vapour lock (7) and the focus coil is arranged in gun body (9) lower end inner wall in middle section
(8) it connects and coaxial, the focus coil (8) is mounted in the circumferential horizontal ledge.
13. the electron gun arrangements of coaxial powder-feeding according to claim 1, which is characterized in that the lower section gun body (12) sets
There is the second molecular pump interface flange (1201), the top wide end of the cladding target seeker (13) and the lower section gun body (12) are even
It connects, the cladding target seeker (13) is provided with the pyramidal structure of through-hole, and the surface of the cladding target seeker (13) is provided with cladding
Target seeker water inlet pipe (1301) and cladding target seeker outlet pipe (1302).
14. the electron gun arrangements of -11 described in any item coaxial powder-feedings according to claim 1, which is characterized in that in the water cooling
The external of cathode (1) installs an insulating shroud (5), and the wall thickness of an insulating shroud (5) has scheduled compressive resistance, height
Than the water-cooled cathode (1) height, the dielectric strength of the inner surface for guaranteeing an insulating shroud (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235852.7A CN109202072B (en) | 2018-03-21 | 2018-03-21 | Electronic gun device with coaxial powder feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235852.7A CN109202072B (en) | 2018-03-21 | 2018-03-21 | Electronic gun device with coaxial powder feeding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109202072A true CN109202072A (en) | 2019-01-15 |
| CN109202072B CN109202072B (en) | 2020-08-11 |
Family
ID=64990949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810235852.7A Active CN109202072B (en) | 2018-03-21 | 2018-03-21 | Electronic gun device with coaxial powder feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109202072B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807415A (en) * | 2019-03-07 | 2019-05-28 | 哈尔滨工业大学（威海） | A kind of processing unit (plant) and processing method of hollow electron beam coaxial wire feed |
| CN110527965A (en) * | 2019-09-05 | 2019-12-03 | 中国航空制造技术研究院 | A kind of processing unit (plant) and method for the preparation of revolving body surface coating |
| CN111441045A (en) * | 2020-05-28 | 2020-07-24 | 西安建筑科技大学 | Electron beam deposition nozzle and method |
| CN113042760A (en) * | 2021-02-05 | 2021-06-29 | 浙江大学 | Ultrasonic cooperative resonance auxiliary device for laser additive manufacturing synchronous powder feeder |
| CN114535604A (en) * | 2022-02-11 | 2022-05-27 | 中国航空制造技术研究院 | Electron beam selective melting additive manufacturing forming method and device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| WO2005053860A2 (en) * | 2003-12-05 | 2005-06-16 | M.B.N. Namomaterialia Spa | Improved method and apparatus for sintering of inorganic materials as well as resulting objects |
| CN101158040A (en) * | 2007-11-09 | 2008-04-09 | 燕山大学 | Coaxial powder feeding apparatus |
| CN101774084A (en) * | 2010-01-09 | 2010-07-14 | 苏州大学 | Method and device for light, powder and gas coaxial transmission laser cladding forming manufacturing |
| CN102764889A (en) * | 2012-07-13 | 2012-11-07 | 中国航空工业集团公司北京航空制造工程研究所 | Electron beam synchronous powder feeding and quick forming method |
| CN203134750U (en) * | 2012-12-19 | 2013-08-14 | 北京有色金属研究总院 | 600kW gas discharge electron gun |
| CN104244557A (en) * | 2014-08-11 | 2014-12-24 | 北京交通大学 | Atmosphere protection coaxial powder feeding plasma gun |
| CN104289811A (en) * | 2013-07-18 | 2015-01-21 | 沈阳新松机器人自动化股份有限公司 | Multi-beam center wire feeding laser processing head and processing method thereof |
| CN104505325A (en) * | 2014-12-15 | 2015-04-08 | 中国航空工业集团公司北京航空制造工程研究所 | Electronic gun device for high-voltage gas discharge |
| CN106922136A (en) * | 2014-10-23 | 2017-07-04 | 切尔沃纳维利亚股份公司 | Prepare the method and system of three-dimensional body |
-
2018
- 2018-03-21 CN CN201810235852.7A patent/CN109202072B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| WO2005053860A2 (en) * | 2003-12-05 | 2005-06-16 | M.B.N. Namomaterialia Spa | Improved method and apparatus for sintering of inorganic materials as well as resulting objects |
| CN101158040A (en) * | 2007-11-09 | 2008-04-09 | 燕山大学 | Coaxial powder feeding apparatus |
| CN101774084A (en) * | 2010-01-09 | 2010-07-14 | 苏州大学 | Method and device for light, powder and gas coaxial transmission laser cladding forming manufacturing |
| CN102764889A (en) * | 2012-07-13 | 2012-11-07 | 中国航空工业集团公司北京航空制造工程研究所 | Electron beam synchronous powder feeding and quick forming method |
| CN203134750U (en) * | 2012-12-19 | 2013-08-14 | 北京有色金属研究总院 | 600kW gas discharge electron gun |
| CN104289811A (en) * | 2013-07-18 | 2015-01-21 | 沈阳新松机器人自动化股份有限公司 | Multi-beam center wire feeding laser processing head and processing method thereof |
| CN104244557A (en) * | 2014-08-11 | 2014-12-24 | 北京交通大学 | Atmosphere protection coaxial powder feeding plasma gun |
| CN106922136A (en) * | 2014-10-23 | 2017-07-04 | 切尔沃纳维利亚股份公司 | Prepare the method and system of three-dimensional body |
| CN104505325A (en) * | 2014-12-15 | 2015-04-08 | 中国航空工业集团公司北京航空制造工程研究所 | Electronic gun device for high-voltage gas discharge |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807415A (en) * | 2019-03-07 | 2019-05-28 | 哈尔滨工业大学（威海） | A kind of processing unit (plant) and processing method of hollow electron beam coaxial wire feed |
| CN110527965A (en) * | 2019-09-05 | 2019-12-03 | 中国航空制造技术研究院 | A kind of processing unit (plant) and method for the preparation of revolving body surface coating |
| CN111441045A (en) * | 2020-05-28 | 2020-07-24 | 西安建筑科技大学 | Electron beam deposition nozzle and method |
| CN111441045B (en) * | 2020-05-28 | 2024-03-22 | 西安建筑科技大学 | Electron beam deposition spray head and method |
| CN113042760A (en) * | 2021-02-05 | 2021-06-29 | 浙江大学 | Ultrasonic cooperative resonance auxiliary device for laser additive manufacturing synchronous powder feeder |
| CN113042760B (en) * | 2021-02-05 | 2021-12-07 | 浙江大学 | Ultrasonic cooperative resonance auxiliary device for laser additive manufacturing synchronous powder feeder |
| CN114535604A (en) * | 2022-02-11 | 2022-05-27 | 中国航空制造技术研究院 | Electron beam selective melting additive manufacturing forming method and device |
| CN114535604B (en) * | 2022-02-11 | 2023-12-01 | 中国航空制造技术研究院 | Electron beam selective melting additive manufacturing forming method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109202072B (en) | 2020-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109202072A (en) | A kind of electron gun arrangements of coaxial powder-feeding | |
| JP3258694B2 (en) | Plasma spraying apparatus for spraying powder material or gaseous material | |
| US5008511A (en) | Plasma torch with axial reactant feed | |
| CN109216135B (en) | Fuse wire additive manufacturing electron gun device with coaxial wire bundles | |
| US5444209A (en) | Dimensionally stable subsonic plasma arc spray gun with long wearing electrodes | |
| CN107124814A (en) | A kind of many negative electrode laminar flow plasma powder spheroidization devices | |
| KR20110134406A (en) | Plasma torch with a lateral injector | |
| CN203800006U (en) | High energy electron gun | |
| JPS5991700A (en) | Plasma flame spraying gun | |
| AU2020245070B2 (en) | Plasma reactor for processing gas | |
| CN105764227B (en) | A kind of high line direct current hollow-cathode plasma source | |
| CN210281053U (en) | Plasma welding gun for connecting vacuum welding box | |
| CN206894987U (en) | A kind of more negative electrode laminar flow plasma powder spheroidization devices | |
| CN109698104B (en) | Water-cooled gyrotron control pole | |
| CN105810536B (en) | Using the magnetron of combined type cold cathode head and the production method of cold cathode body | |
| CN109578233B (en) | Ablation type pulse plasma propeller based on multi-anode electrode structure | |
| CN112343780B (en) | Microwave coaxial resonance cusped field thruster | |
| CN209150477U (en) | One kind being conducive to gas-cooled carbon dioxide laser resonant cavity | |
| CN101527421A (en) | Integration discharging glass tube used in fast axial flow gas laser | |
| CN110524096A (en) | For connecting the plasma gun of vacuum welding equipment | |
| CN107995767A (en) | A kind of arc plasma source of efficient stable | |
| CN108566715B (en) | Plasma gun for preparing acetylene from coal | |
| RU2092981C1 (en) | Plasma generator for deposition of powder materials | |
| CN207929988U (en) | A kind of plasma balling machine | |
| CN109559956A (en) | Electron gun for generating elliptical ribbon-like electron beams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |