CN107931625A - A kind of metal dust powder manufacturing apparatus - Google Patents
A kind of metal dust powder manufacturing apparatus Download PDFInfo
- Publication number
- CN107931625A CN107931625A CN201711311242.2A CN201711311242A CN107931625A CN 107931625 A CN107931625 A CN 107931625A CN 201711311242 A CN201711311242 A CN 201711311242A CN 107931625 A CN107931625 A CN 107931625A
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- CN
- China
- Prior art keywords
- support unit
- compressed gas
- atomization chamber
- annular groove
- bar
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to a kind of metal dust powder manufacturing apparatus, including closed atomization chamber, driving device and equipment engine base；Tungsten electrode and support unit are provided with atomization chamber；Driving device is arranged on equipment engine base；Support unit is by support unit shell and is set in the support unit inner sleeve of support unit shell inner cavity and forms；Put in support unit and metal bar is installed；Compressed gas passage is axially offered in the side wall of support unit shell, is put in support unit and offers the annular groove that multiple tracks is parallel to each other, the circumferentially multiple micropores in per pass annular groove bottom, the gas outlet of micropore is to spray metal bar periphery wall；Compressed gas passage on support unit shell is communicated with annular groove；Compressed gas and gas phase in atomization chamber are same.The present invention can improve the rotating speed of bar, reduce the vibration of rotatable parts, avoid atomization chamber from being reduced the temperature in the non-melt area of bar so as to avoid other parts from being damaged by outside air pollution.
Description
Technical field
The invention belongs to the metal dust preparation technique field of 3D printing, it is related to a powder manufacturing apparatus, especially a kind of metal
Powder powder manufacturing apparatus.
Background technology
The preparation method of metal dust has Mechanical Method, chemical method, gas atomization, centrifugal atomization, metal fever also at present
Former method, electrolysis etc..The metal dust that rotary electrode method produces is used in centrifugal atomization to be spherical, compact structure, granularity point
Cloth is narrow, and the parts relative density applied to 3D printing is high, good mechanical property, is the main system of current 3D printing metal dust
Take method.
Rotary electrode method produces the processing technology of metal dust as metal bar is placed in inert gas, such as argon gas, helium
Gas etc., melting is carried out to it by electron beam, electric arc etc., while metal bar rotates at a high speed, and the gold of melting is made using centrifugal force
Belong to atomization, the spherical metal powder of high-purity is can obtain after condensation.Powder is atomized into since metal bar constantly consumes, metal bar
High-speed rotating while need axial feed.And metal bar overhangs longer when processing, circumference is uneven during atomized molten, causes
Rotatable parts are uneven, cause vibration equipment big.Rotating speed is difficult to improve, so as to influence the quality and production efficiency of metal dust.
In the prior art, usually add an Auxiliary support, gap left between rolling bearing or bushing, with metal bar,
Gap size is difficult to determine, gap is excessive, does not have supporting role, and since bar end is constantly in molten condition, temperature is very
Height, the too small metal bar in gap and Auxiliary support easily bond.Due to the presence in gap, bar easily will control during feeding
System brings atomization chamber into, is contaminated metal dust.
The content of the invention
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art, there is provided a kind of metal dust powder manufacturing apparatus, its energy
Enough reduce swing when bar rotates at a high speed, reduce the vibration of equipment, improve the rotating speed of bar, avoid extraneous air from entering atomization
Chamber, reduces the temperature of bar.So as to improve the quality and processing efficiency of metal dust.
The purpose of the present invention is what is be achieved through the following technical solutions：
This metal dust powder manufacturing apparatus, including closed atomization chamber, driving device and equipment engine base；In the atomization chamber
It is provided with tungsten electrode and support unit；The support unit is fixed on the side wall of atomization chamber, and atomization chamber is stretched into one end
Interior, the other end is stretched out outside atomization chamber；The tungsten electrode is fixed in another side wall of atomization chamber and opposite with support unit；It is described
Driving device is arranged on equipment engine base；The support unit is by support unit shell and is set in support unit shell inner cavity
Support unit inner sleeve composition；Put in the support unit and metal bar is installed；In the side wall of the support unit shell
Compressed gas passage axially is offered, is put in the support unit and offers the annular groove that multiple tracks is parallel to each other, per pass annular groove bottom
The circumferentially multiple micropores in portion, the gas outlet of the micropore is to spray metal bar periphery wall；On the support unit shell
Compressed gas passage is communicated with annular groove；The compressed gas and gas phase in atomization chamber are same.
Further, the ventilation that multiple annular grooves with support unit outer wall of inside race communicate is offered in compressed gas passage
Hole.
Further, above-mentioned compressed gas passage is a blind hole being opened in support unit side wall of outer shell, and right end is air inlet
Mouthful.
Further, the air inlet of above-mentioned compressed gas passage connects compressed gas source, and compressed gas is led to by compressed gas passage
Venthole is crossed into after annular groove, gases at high pressure are sprayed by micropore by annular groove, air supporting support is formed on metal bar outer wall.
Further, above-mentioned micropore is evenly distributed on metal bar periphery.
The invention has the advantages that：
The metal dust powder manufacturing apparatus of the present invention redesigns bar supporting structure, the side supported using air supporting
Formula, can effectively improve the rotating speed of bar, reduce the vibration of rotatable parts, avoid atomization chamber from being reduced bar by outside air pollution
The temperature in non-melt area is so as to avoid other parts from being damaged.
Brief description of the drawings
Fig. 1 the structural representation of present invention；
The air supporting support concept figure of Fig. 2 present invention.
Wherein：1- tungsten electrodes；2- atomization chambers；3- electric arcs；4- metal dusts；5- support units；6- metal bars；7- drives
Dynamic device；8- equipment engine bases；9- support unit shells；10- support unit inner sleeves；11- micropores；12- compressed gas passages.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1 and Fig. 2：The metal dust powder manufacturing apparatus of the present invention, including closed atomization chamber 2,7 and of driving device
Equipment engine base 8；Tungsten electrode 1 and support unit 5 are provided with atomization chamber 2；Support unit 5 is fixed on the side wall of atomization chamber 2
On, and one end is stretched into atomization chamber 2, the other end is stretched out outside atomization chamber 2；Tungsten electrode 1 be fixed in 2 another side wall of atomization chamber and
It is opposite with support unit 5；Driving device 7 is arranged on equipment engine base 8；Support unit 5 is by support unit shell 9 and is set in
The support unit inner sleeve 10 of 9 inner cavity of support unit shell forms；Metal bar 6 is installed in support unit inner sleeve 10；Support is single
Compressed gas passage 12 is axially offered in the side wall of first shell 9, offers what multiple tracks was parallel to each other in support unit inner sleeve 10
Annular groove, the circumferentially multiple micropores 11 in per pass annular groove bottom, the gas outlet of micropore 11 is to spray 6 periphery wall of metal bar；Support
Compressed gas passage 12 in cell enclosure 9 is communicated with annular groove；Compressed gas and gas phase in atomization chamber 2 are same.In compressed gas
The venthole that multiple annular grooves with 10 outer wall of support unit inner sleeve communicate is offered in passage 12.Compressed gas passage 12 is
One is opened in the blind hole in 9 side wall of support unit shell, and right end is air inlet.The air inlet of compressed gas passage 12 connects compression
Source of the gas, after compressed gas enters annular groove by compressed gas passage 12 by venthole, sprays high pressure gas by annular groove by micropore 11
Body, forms air supporting support on 6 outer wall of metal bar.Micropore 11 is evenly distributed on 6 periphery of metal bar.
The course of work of the present invention is as follows：
With reference to Fig. 1：It is inert gas in atomization chamber 2, driving device 7 drives bar 6 to rotate at a high speed, bar 6 and tungsten electrode 1
Between produce electric arc 3 bar is melted, molten metal material is thrown away under the action of the centrifugal force, after solidification formed metal dust 4,
The metal dust after solidification is collected in atomization chamber bottom.With the continuous consumption of bar 6, driving device 7 drives bar 6 at the same time
Feed to the left.Support unit 5 is fixed on above atomization chamber 2, is support 6 front end of bar, is prevented bar 6 from having larger swing
And cause vibration equipment.
With reference to Fig. 2：Compressed gas enters support unit shell 9 by compressed gas passage 12, and it is single to enter support by stomata
First inner sleeve 10, has multiple tracks annular groove, the circumferentially multiple micropores 11 in each annular groove bottom, compressed gas in support unit inner sleeve 10
Finally sprayed by micropore 11 so that compressed air is full of the gap between support unit inner sleeve 10 and metal bar 6.Due to compression
Air pressure is high, and when metal bar 6 is amesiality, pressure increase herein, increases the active force of metal bar 6, and phase
The pressure tossed about reduces, and active force also reduces, so that 6 fitting center position of metal bar, improves the stability of rotatable parts
And rotating speed.Since the gas phase in compressed gas and atomization chamber 2 is same, and pressure is higher than atomization chamber 2 and atmospheric pressure, compressed gas meeting
The air of atomization chamber 2 and right side on the left of continual entrance, so that the air for obstructing the external world enters atomization chamber 2, prevents mist
Being mixed into air in change chamber 2 causes metal dust to pollute, impurity increase.
In conclusion the present invention is effectively raised the stability of powder manufacturing apparatus and is turned by a kind of new supporting way
Speed, and pollution of the ambient atmosphere to metal is avoided, improve the processing quality and efficiency of metal dust.
Claims (5)
1. a kind of metal dust powder manufacturing apparatus, it is characterised in that including closed atomization chamber (2), driving device (7) and equipment machine
Seat (8)；Tungsten electrode (1) and support unit (5) are provided with the atomization chamber (2)；The support unit (5) is fixed on atomization chamber
(2) on side wall, and one end is stretched into atomization chamber (2), and the other end stretches out atomization chamber (2) outside；The tungsten electrode (1) is fixed
It is in atomization chamber (2) another side wall and opposite with support unit (5)；The driving device (7) is arranged on equipment engine base (8)
On；The support unit (5) is by support unit shell (9) and is set in the support unit of support unit shell (9) inner cavity
Cover (10) composition；Metal bar (6) is installed on the support unit inner sleeve (10)；The side wall of the support unit shell (9)
Interior axial direction offers compressed gas passage (12), and the annular groove that multiple tracks is parallel to each other is offered on the support unit inner sleeve (10),
The circumferentially multiple micropores (11) in per pass annular groove bottom, the gas outlet of the micropore (11) is to spray metal bar (6) periphery wall；
Compressed gas passage (12) on the support unit shell (9) is communicated with annular groove；The compressed gas and atomization chamber (2) interior gas
Body is identical.
2. metal dust powder manufacturing apparatus according to claim 1, it is characterised in that opened up in compressed gas passage (12)
There is the venthole that multiple annular grooves with support unit inner sleeve (10) outer wall communicate.
3. metal dust powder manufacturing apparatus according to claim 1, it is characterised in that the compressed gas passage (12) is one
The blind hole being opened in support unit shell (9) side wall, right end is air inlet.
4. the metal dust powder manufacturing apparatus according to claim 1 or 3, it is characterised in that the compressed gas passage (12)
Air inlet connect compressed gas source, compressed gas by compressed gas passage (12) by venthole enter annular groove after, by annular groove
Gases at high pressure are sprayed by micropore (11), air supporting support is formed on metal bar (6) outer wall.
5. metal dust powder manufacturing apparatus according to claim 4, it is characterised in that the micropore (11) is evenly distributed on gold
Belong to bar (6) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311242.2A CN107931625A (en) | 2017-12-12 | 2017-12-12 | A kind of metal dust powder manufacturing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311242.2A CN107931625A (en) | 2017-12-12 | 2017-12-12 | A kind of metal dust powder manufacturing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931625A true CN107931625A (en) | 2018-04-20 |
Family
ID=61946583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711311242.2A Pending CN107931625A (en) | 2017-12-12 | 2017-12-12 | A kind of metal dust powder manufacturing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940167A (en) * | 2018-12-25 | 2019-06-28 | 西安赛隆金属材料有限责任公司 | A kind of rotation electrode fuel pulverizing plant and method |
| CN110280775A (en) * | 2019-06-19 | 2019-09-27 | 深圳精匠云创科技有限公司 | Floating seal arrangement and rotation fuel pulverizing plant with the floating seal arrangement |
| CN114535585A (en) * | 2022-04-26 | 2022-05-27 | 西安宝德九土新材料有限公司 | Atomizing preparation facilities of superfine alloy powder |
-
2017
- 2017-12-12 CN CN201711311242.2A patent/CN107931625A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940167A (en) * | 2018-12-25 | 2019-06-28 | 西安赛隆金属材料有限责任公司 | A kind of rotation electrode fuel pulverizing plant and method |
| CN110280775A (en) * | 2019-06-19 | 2019-09-27 | 深圳精匠云创科技有限公司 | Floating seal arrangement and rotation fuel pulverizing plant with the floating seal arrangement |
| CN114535585A (en) * | 2022-04-26 | 2022-05-27 | 西安宝德九土新材料有限公司 | Atomizing preparation facilities of superfine alloy powder |
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