CN108672709A - A kind of device of aerosolization production 3D printing metal powder - Google Patents
A kind of device of aerosolization production 3D printing metal powder Download PDFInfo
- Publication number
- CN108672709A CN108672709A CN201810816941.0A CN201810816941A CN108672709A CN 108672709 A CN108672709 A CN 108672709A CN 201810816941 A CN201810816941 A CN 201810816941A CN 108672709 A CN108672709 A CN 108672709A
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- Prior art keywords
- coil
- atomization
- spray disk
- silk material
- metal powder
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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
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0836—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with electric or magnetic field or induction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0848—Melting process before atomisation
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A kind of device of aerosolization production 3D printing metal powder, described device include that atomization spray disk fixes top plate, atomization spray disk, electromagnetic shielding ring and radio-frequency induction coil from top to bottom；The atomization spray disk includes main atomization air flow spout and auxiliary protection air-flow spout；The radio-frequency induction coil includes that the first coil of coaxial arrangement and the second coil, first coil and the second coil are individually controlled by conducting wire；First coil is located at the top of the second coil, and the second coil is taper type coil, cone angle ° between；The fusing center is located in the second coil, α<β, the α=30 50 °, the β=20 40 °.The device can effectively narrow metal powder particle size range.
Description
Technical field
The invention belongs to powder metallurgical technology, more particularly to a kind of atomization prepares technology of metal powder field, tool
Body is related to a kind of metal gas atomization device.
Background technology
The method and apparatus of metal aerosolization production 3D printing metal powder are quickly developing, Chinese patent (publication No.
CN107900366A, title：Aerosolization continuously prepares the device and method of 3D printing titanium or titanium alloy powder) disclose it is as follows
Technical solution：Described device includes that atomization spray disk fixes top plate, atomization spray disk, electromagnetic shielding ring and high-frequency induction from top to bottom
Coil；The atomization spray disk and fixed top plate pass through fixing bolt；The atomization spray disk fixes top plate and atomization spray disk center position
Titanium or titanium alloy wire materials continuous conveying feed hole are installed；The atomization spray disk is fed hole axle with electromagnetic shielding ring with the conveying
The heart is co-axially mounted；The atomization spray disk includes main atomization air flow spout and auxiliary protection air-flow spout；Through the main atomization air flow
The atomization air flow that spout sprays converges the atomization center that formed, the atomization center and the high frequency inductive coil in the silk material
The fusing center that silk material end is formed is heated to overlap.It limits and is atomized so that melt flow is atomized primary air after generating,
Ensure the degree of superheat to greatest extent, reduce thermal loss, realizes the high fine powder recovery rate of titanium or titanium alloy atomization.
It is this that the setting on the downside of jet port is arranged due to shortening atomization air flow and metal in high-frequency induction heating coil
The distance between liquid stream forms close coupling, so that metal liquid stream is just smashed into fine liquid by air-flow at high temperature, be conducive to obtain
The narrow metal powder of grain size small range.
But work as and want to further increase its effect, it obtains higher fine powder recovery rate and is necessary to be improved equipment.
In the prior art, radio-frequency induction coil is typically tubular or back taper, and silk material is passed through from its axis, silk material bottom end
Generally distance closer above the bottom of induction coil, line of magnetic induction direction are that the oblique outside of arc extends.Molten melt drop or
The electromagnetic force Fem that liquid stream receives can pass throughTo count
It calculates.In formula：μ is the magnetic capacity of metal wire rod；I0For the electric current in induction coil；RdFor molten drop radius；I is induction coil
I-th circle；N is the number of total coils of induction coil；B i are the radius of the i-th circle；Z is the height of molten drop geometric center；Z i are induction
The height that coil i-th encloses；F em are the molten drop suffered electromagnetic force of certain point in the axial direction；G (x) is zero dimension function, with wire
The ratio between the depth of penetration of material radius and high-frequency current is related.In other words, pass through control coil radius, height and size of current energy
Enough control the diameter of drop or liquid stream top end, that is to say, that pattern when metal melting can be controlled.
Electromagnetic force to melting liquid stream or drop fusion point at, as shown in Figure 1, melting liquid stream or drop will receive to
Outside electromagnetic force is write in induction coil bottom end, at this moment can widen liquid stream or drop, but in the prior art, not favorably
Use this point.Main cause is that this active force is very small under tubular or the effect of back taper induction coil, is not examined usually
Consider.
Invention content
The purpose of the present invention is to provide a kind of aerosolization production 3D printing gold that can narrow metal powder particle size range
Belong to the device of powder.
To achieve the goals above, device provided by the invention includes that atomization spray disk fixes top plate, atomization spray from top to bottom
Disk, electromagnetic shielding ring and radio-frequency induction coil；
Wherein, the atomization spray disk is fixed top plate with atomization spray disk and is fixedly connected by fixing bolt；Disk is sprayed in the atomization
Fixed top plate and atomization spray disk center position are equipped with metal wire material conveying feed hole；
The atomization spray disk is co-axially mounted with electromagnetic shielding ring with the conveying feed hole axle heart；
The atomization spray disk includes main atomization air flow spout and auxiliary protection air-flow spout；
The atomization air flow sprayed through the main atomization air flow spout converges the atomization center that formed, the mist in the silk material
The circular conical surface that the line of change center and main atomization air flow spout is constituted with axis angle is α；The atomization center and the high frequency
Induction coil heats the fusing center that silk material end is formed and overlaps；
Disk auxiliary protection air-flow spout to be sprayed to arrange for annular distance, quantity is a in 4-10,
The annular distance is the straight slot being arranged in main atomization air flow spout periphery, and guiding air-flow is sprayed in back taper, cone angle
For β；
The main atomization air flow spout is La Erwa circumferential welds；
The radio-frequency induction coil includes the first coil and the second coil of coaxial arrangement, and first coil and the second coil are logical
Conducting wire is crossed individually to control；
First coil is located at the top of the second coil, and the second coil is taper type coil, and cone angle is between 30-60 °；
The fusing center is located in the second coil, α<β, described α=30-50 °, described β=20-40 °.
Preferably, the first coil is tubular coil, internal diameter and the first coil internal diameter phase of the second coil top coil
Together.
Preferably, the first coil is taper type coil, and the internal diameter of the second coil top coil is than first coil internal diameter
Small, the cone angle of first coil is less than the cone angle of the second coil, and the cone angle of first coil is between 30-50 °.
Further, further include 2-4 microwave emitter, waveguide between first coil and the second coil, and
It is uniformly distributed along horizontal circumference, the center of circle of place circumference is located on radio-frequency induction coil coil axis, and waveguide emission port refers both to
To fusing center, the waveguide tube outer surface coats electro-magnetic screen layer.
Further, further include a silk material stabilizing sleeve being fixed on atomization spray disk, silk coaxial with conveying feed hole
The internal diameter of material stabilizing sleeve centre bore is more than the outer diameter of silk material, and the difference between the two is not more than 2mm.
Further, silk material stabilizing sleeve bottom end is stretched out atomization spray disk and is stretched into first coil, and silk material stabilizing sleeve is by resistance to
Refractory ceramics is made.
The beneficial effects of the present invention are：
1, two radio-frequency induction coils that can be controlled respectively are set, arrange up and down, the first coil positioned at upside is used for
Silk material is preheated, for melting silk material, two coils are separately controlled convenient for the position of control metal molten the second coil, easy to produce
Optimised process is adjusted when different metal powder.
2, the second coil is taper type coil, can widen the melted ends that metal melting is formed under electromagnetic force, increase
The big area with air flow contacts, impact area especially at high operating temperatures can effectively improve air-flow service efficiency,
Sub-material particle size range is narrowed, and since the second coil individually controls, can be handed over by the size of current of change electromagnetic coil
The parameters such as Frequency change the size of electromagnetic force, and then obtain optimal parameter when different metal production, obtain required point
Expect particle size range.
3, bulk metal to microwave is non-absorbent, but the metal of powdered form and molten state is can to absorb microwave,
And acted on itself heating heating by microwave.In order to maintain or increase the melted ends temperature widened, microwave hair is increased
It penetrates, molten metal is heated, auxiliary impact air-flow makes sub-material grain size further decrease, and particle size range further narrows.
Description of the drawings
Fig. 1 is the electromagnetic force schematic diagram that molten metal receives in the prior art.
Fig. 2 is first embodiment schematic diagram.
Fig. 3 is second embodiment schematic diagram
Fig. 4 is 3rd embodiment schematic diagram.
Fig. 5 is Fig. 4 partial enlarged views.
Fig. 6 is main atomization air flow spout and auxiliary protection air-flow spout matching relationship vertical view.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.Although showing the exemplary embodiment party of the disclosure in attached drawing
Formula, it being understood, however, that may be realized in various forms the disclosure without should be limited by embodiments set forth herein.Phase
Instead, it provides these embodiments to be to be able to be best understood from the disclosure, and can be complete by the scope of the present disclosure
It is communicated to those skilled in the art.
As shown in figures 2-6, a kind of device of aerosolization production 3D printing metal powder, described device include mist from top to bottom
Change spray disk and fixes top plate 20, atomization spray disk 30, electromagnetic shielding ring 50 and radio-frequency induction coil 60；Wherein, disk is sprayed in the atomization
30 fix top plate 20 with atomization spray disk is fixedly connected by fixing bolt 80；The atomization spray disk fixes top plate 20 and atomization spray disk
30 centers are equipped with the conveying feed of metal wire material 10 hole；The atomization spray disk 30 is fed with electromagnetic shielding ring 50 with the conveying
Hole axle center is co-axially mounted；The atomization spray disk 30 includes main atomization air flow spout 41 and auxiliary protection air-flow spout 42；Through described
The atomization air flow that main atomization air flow spout 41 sprays converges the atomization center that formed, the atomization center and master in the silk material 10
The circular conical surface that the line of atomization air flow spout 41 is constituted with axis angle is α；The atomization center and the radio-frequency induction coil
The fusing center that 60 10 ends of heating silk material are formed overlaps；It sprays disk auxiliary protection air-flow spout 42 and arranges that quantity is in 4- for annular distance
10, the annular distance is the straight slot being arranged in 41 periphery of main atomization air flow spout, and guiding air-flow is sprayed in back taper, and cone angle is
β；The main atomization air flow spout 41 is La Erwa circumferential welds；The radio-frequency induction coil 60 includes the first coil 61 of coaxial arrangement
With the second coil 62, first coil 61 and the second coil 62 are individually controlled by conducting wire；First coil 61 is located at the second coil 62
Top, the second coil 62 be taper type coil, cone angle is between 30-60 °；The fusing center is located at the second coil 62
It is interior, α<β, described α=30-50 °, described β=20-40 °.This technical solution constitutes basic embodiment.
First embodiment
As shown in Fig. 2, on the basis of basic embodiment, it sets the first coil 61 to taper type coil, the
The internal diameter of 62 top coil of two coil is smaller than 61 internal diameter of first coil, and the cone angle of first coil 61 is less than the cone of the second coil 62
Angle, the cone angle of first coil 61 is between 30-50 °.The purpose that first coil is arranged to taper type is to allow the magnetic of two coils
The line of force reduces cross jamming.
Second embodiment
As shown in figure 3, on the basis of basic embodiment, first coil 61 is arranged in the technical solution of first embodiment
Internal diameter for tubular coil, 62 top coil of the second coil is identical as 61 internal diameter of first coil.Further include 2-4 microwave emitter
90, waveguide is located at the bottom of the second coil, and is uniformly distributed along horizontal circumference, and the center of circle of place circumference is located at high frequency sense
It answers on 60 axis of coil, waveguide emission port is directed to fusing center, and the waveguide tube outer surface coats electro-magnetic screen layer.Electricity
If magnetic masking layer can be to be used alone electromagnetic shielding film, it is possible to can be because high temperature causes service life shorter, in electromagnetic screen
Cover additional one layer of thermal insulation layer on film, between thermal insulation layer and electro-magnetic screen layer using capillary made of copper carry out water cooling or other
Coolant liquid cools down, and prevents waveguide from receiving electromagnetic force elevated temperature deformation.
Further include a silk material stabilizing sleeve 70 being fixed on atomization spray disk 30, coaxial with conveying feed hole, silk material is steady
The internal diameter of 70 centre bore of safety barrel is more than the outer diameter of silk material 10, and the difference between the two is not more than 2mm.
3rd embodiment
As shown in figure 4, on the basis of basic embodiment, first coil 61 is arranged in the technical solution of first embodiment
Internal diameter for tubular coil, 62 top coil of the second coil is identical as 61 internal diameter of first coil.Further include 2-4 microwave emitter
90, waveguide is uniformly distributed between the first and second coils, and along horizontal circumference, and the center of circle of place circumference is located at
On 60 axis of radio-frequency induction coil, waveguide emission port is directed to fusing center, and the waveguide tube outer surface coats electromagnetic screen
Cover layer.If electro-magnetic screen layer can be to be used alone electromagnetic shielding film, it is possible to service life can be caused shorter because of high temperature,
Additional one layer of thermal insulation layer on electromagnetic shielding film, between thermal insulation layer and electro-magnetic screen layer using capillary made of copper carry out water cooling or
It is the cooling of other coolant liquids, prevents waveguide from receiving electromagnetic force elevated temperature deformation.
Further include a silk material stabilizing sleeve 70 being fixed on atomization spray disk 30, coaxial with conveying feed hole, silk material is steady
The internal diameter of 70 centre bore of safety barrel is more than the outer diameter of silk material 10, and the difference between the two is not more than 2mm.
70 bottom end of silk material stabilizing sleeve is stretched out atomization spray disk 30 and is stretched into first coil 61, and the top of first coil is located at
Portion, it is excessive easy by temperature stress caused by high temperature to stretch into, and silk material stabilizing sleeve 70 is made of refractory ceramics.
By testing Chinese patent (publication No. CN107900366A, title：Aerosolization continuously prepares 3D printing titanium or titanium
The device and method of alloy powder) it produces same two kinds of metal powders with basic embodiment and three embodiments and carries out pair
Than producing ten batches, technological parameter and process：The silk material of a diameter of 3mm is chosen, feed equipment is opened, feeding rate is
20mm/s.The setting spray main atomization air flow spout of disk is with spray disk auxiliary protection air-flow spout in same level height.First to the whole series
Atomization plant vacuumizes, and equipment internal pressure is 2.0 × 10-3Pa, after pour protection argon gas, equipment internal pressure is 0.04MPa,
Then it repeats above operation primary.Electromagnetic shielding loop system cooling water is opened, radio-frequency induction coil system cooling water is opened.Silk material
Into after radio-frequency induction coil, high frequency induction power supply is opened, degree of superheat control opens atomization spray disk, main atomization in 300 ± 20k
Spray disk pressure is set as 4MPa, and auxiliary protection air flow pressure is set as 4MPa, is atomized.The 3D of preparation is beaten after atomization
Print is collected with titanium or titanium alloy powder.Ten production powders, are sieved, p- 100 mesh, that is, 150um materials below are united
Meter：
It can be seen from the above result that：
1, the device can effectively narrow the particle size range of metal powder, reduce the corresponding grain size of peak value；
What 2, the practical device grain size of magnetic material narrowed is better notable, main reason is that the same parameter of equipment
Under, magnetic material such as iron-based material by electromagnetic force influence with big, impact area bigger.
3, the coil of two taper types is got well than the effect of one taper type coil of a tubular.
4, increase microwave a degree of can increase equipment adjustable tool later, use the auxiliary of good microwave
Sub-material grain size can be further decreased.
5, microwave is preferably emitted to from the top down on the face that melting face crosses with air-flow, more advantageous in this way from data
In the thinner powder of acquisition.
The device, can be according to material unit permeance, by adjusting the first He when being produced to dissimilar metals
The size of current of second coil, the position of the FREQUENCY CONTROL of alternation melting, make fusion point be overlapped with atomization point.Equipment can be arranged
One transparent peep hole is visually adjusted, and is started that video camera can also be arranged, is recorded to gas shock process,
Then it reviews to assist adjustment process.According to production as a result, i.e. parameters such as grain size of sub-material, adjustment electromagnetic force size, wind speed
Etc. parameters, best effect can be obtained.
It is maximum to be advantageous in that, the controllable degree of aerosolization is provided, the means of the adjustment to aerosolization process are increased,
The result of aerosolization can be improved.In addition, in than the prior art more preferably range, can to product cut size result into
Row control.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for people in the art
For member, the invention may be variously modified and varied.All any modifications in spirit of that invention and principle, made are equal
Replace, improve etc., it should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of device of aerosolization production 3D printing metal powder, described device includes that atomization spray disk fixes top plate from top to bottom
(20), atomization spray disk (30), electromagnetic shielding ring (50) and radio-frequency induction coil (60)；
Wherein, the atomization spray disk (30) is fixed top plate (20) with atomization spray disk and is fixedly connected by fixing bolt (80)；It is described
Atomization spray disk fixes top plate (20) and atomization spray disk (30) center is equipped with metal wire material (10) conveying feed hole；
The atomization spray disk (30) is co-axially mounted with electromagnetic shielding ring (50) with the conveying feed hole axle heart；
The atomization spray disk (30) includes main atomization air flow spout (41) and auxiliary protection air-flow spout (42)；
The atomization air flow sprayed through the main atomization air flow spout (41) converges in the silk material (10) forms atomization center, institute
Line composition and the axis angle for stating atomization center and main atomization air flow spout (41) are the circular conical surface of α；The atomization center with
The fusing center that radio-frequency induction coil (60) heating silk material (10) end is formed overlaps；
Disk auxiliary protection air-flow spout (42) to be sprayed to arrange for annular distance, quantity is a in 4-10,
It is characterized in that,
The annular distance is straight slot of the setting in main atomization air flow spout (41) periphery, and guiding air-flow is sprayed in back taper, cone angle
For β；
The main atomization air flow spout (41) is La Erwa circumferential welds；
The radio-frequency induction coil (60) includes the first coil (61) and the second coil (62) of coaxial arrangement, first coil (61)
It is individually controlled by conducting wire with the second coil (62)；
First coil (61) is located at the top of the second coil (62), and the second coil (62) is taper type coil, and cone angle is in 30-
Between 60 °；
The fusing center is located in the second coil (62), α<β, described α=30-50 °, described β=20-40 °.
2. the device of aerosolization production 3D printing metal powder according to claim 1, which is characterized in that the First Line
It is tubular coil to enclose (61), and the internal diameter of the second coil (62) top coil is identical as first coil (61) internal diameter.
3. the device of aerosolization production 3D printing metal powder according to claim 1, which is characterized in that the First Line
It is taper type coil to enclose (61), and the internal diameter of the second coil (62) top coil is smaller than first coil (61) internal diameter, first coil
(61) cone angle is less than the cone angle of the second coil (62), and the cone angle of first coil (61) is between 30-50 °.
4. the device of aerosolization production 3D printing metal powder according to any one of claims 1 to 3, which is characterized in that
Further include 2-4 microwave emitter (90), waveguide is located between first coil (61) and the second coil (62), and along level
Even circumferential is distributed, and the center of circle of place circumference is located on radio-frequency induction coil (60) axis, and waveguide emission port is directed to
Fusing center, the waveguide tube outer surface coat electro-magnetic screen layer.
5. the device of aerosolization production 3D printing metal powder according to claim 4, which is characterized in that further include one
The silk material stabilizing sleeve (70) being fixed on atomization spray disk (30), silk material stabilizing sleeve (70) centre bore coaxial with conveying feed hole
Internal diameter be more than silk material (10) outer diameter, the difference between the two be not more than 2mm.
6. the device of aerosolization production 3D printing metal powder according to claim 5, which is characterized in that the silk material is steady
Safety barrel (70) bottom end is stretched out atomization spray disk (30) and is stretched into first coil (61), and silk material stabilizing sleeve (70) is by refractory ceramics system
At.
7. the device of aerosolization production 3D printing metal powder according to any one of claims 1 to 3, which is characterized in that
Further include 2-4 microwave emitter (90), waveguide is located at the bottom side of the second coil (62), and circumferentially equal along its bottom end coil
Even distribution, waveguide emission port are directed to fusing center, and the waveguide tube outer surface coats electro-magnetic screen layer.
8. the device of aerosolization production 3D printing metal powder according to claim 7, which is characterized in that further include one
The silk material stabilizing sleeve (70) being fixed on atomization spray disk (30), silk material stabilizing sleeve (70) centre bore coaxial with conveying feed hole
Internal diameter be more than silk material (10) outer diameter, the difference between the two be not more than 2mm.
9. the device of aerosolization production 3D printing metal powder according to claim 8, which is characterized in that the silk material is steady
Safety barrel (70) bottom end is stretched out atomization spray disk (30) and is stretched into first coil (61), and silk material stabilizing sleeve (70) is by refractory ceramics system
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816941.0A CN108672709A (en) | 2018-07-24 | 2018-07-24 | A kind of device of aerosolization production 3D printing metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810816941.0A CN108672709A (en) | 2018-07-24 | 2018-07-24 | A kind of device of aerosolization production 3D printing metal powder |
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| Publication Number | Publication Date |
|---|---|
| CN108672709A true CN108672709A (en) | 2018-10-19 |
Family
ID=63814705
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816941.0A Pending CN108672709A (en) | 2018-07-24 | 2018-07-24 | A kind of device of aerosolization production 3D printing metal powder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893867A (en) * | 2021-01-19 | 2021-06-04 | 重庆大学 | Method for inhibiting hole defects in uniform metal droplet jetting 3D printing |
| CN114245762A (en) * | 2019-08-15 | 2022-03-25 | Ald真空技术有限公司 | Method and device for separating conductive liquid |
| CN114905046A (en) * | 2022-06-20 | 2022-08-16 | 江苏威拉里新材料科技有限公司 | 3D printing metal powder spraying processing system and using method thereof |
| US11919071B2 (en) | 2020-10-30 | 2024-03-05 | 6K Inc. | Systems and methods for synthesis of spheroidized metal powders |
| US11963287B2 (en) | 2020-09-24 | 2024-04-16 | 6K Inc. | Systems, devices, and methods for starting plasma |
-
2018
- 2018-07-24 CN CN201810816941.0A patent/CN108672709A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114245762A (en) * | 2019-08-15 | 2022-03-25 | Ald真空技术有限公司 | Method and device for separating conductive liquid |
| US11919089B2 (en) | 2019-08-15 | 2024-03-05 | Ald Vacuum Technologies Gmbh | Method and device for breaking up an electrically conductive liquid |
| US11963287B2 (en) | 2020-09-24 | 2024-04-16 | 6K Inc. | Systems, devices, and methods for starting plasma |
| US11919071B2 (en) | 2020-10-30 | 2024-03-05 | 6K Inc. | Systems and methods for synthesis of spheroidized metal powders |
| CN112893867A (en) * | 2021-01-19 | 2021-06-04 | 重庆大学 | Method for inhibiting hole defects in uniform metal droplet jetting 3D printing |
| CN114905046A (en) * | 2022-06-20 | 2022-08-16 | 江苏威拉里新材料科技有限公司 | 3D printing metal powder spraying processing system and using method thereof |
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