CN107051865A - A kind of online metal dust screening machine and method for sieving suitable for 3D printing - Google Patents
A kind of online metal dust screening machine and method for sieving suitable for 3D printing Download PDFInfo
- Publication number
- CN107051865A CN107051865A CN201710270532.0A CN201710270532A CN107051865A CN 107051865 A CN107051865 A CN 107051865A CN 201710270532 A CN201710270532 A CN 201710270532A CN 107051865 A CN107051865 A CN 107051865A
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- China
- Prior art keywords
- metal dust
- sieve nest
- nest assembly
- screening machine
- screen
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of online metal dust screening machine suitable for 3D printing, including feed hopper, ball valve, screen cover, first sieve nest assembly, second sieve nest assembly and base, the feed hopper is connected with the ball valve, the ball valve is connected with the screen cover, air inlet and exhaust outlet are set in the screen cover, the screen cover is provided with the first screen cloth with the first sieve nest assembly junction, coarse powder tank is connected with the first sieve nest assembly, the first sieve nest assembly is provided with the second screen cloth with the second sieve nest assembly junction, fine powder tank is connected with the second sieve nest assembly, the second sieve nest assembly is connected with the base, dynamical system is provided with the base.In addition, present invention also offers a kind of online metal dust method for sieving suitable for 3D printing.Solve in existing metal dust screening process, the oxidizable and technical problem made moist.
Description
Technical field
The present invention relates to 3D printing increasing material manufacturing and powder metallurgical technology, more particularly to it is a kind of suitable for 3D printing
Online metal dust screening machine and method for sieving.
Background technology
Application with metal dust in fields such as metallurgy, the energy, electronics, medical treatment, Aero-Space expands day by day.Metal powder
End is due to big specific surface area and special surface property, and physicochemical property has very big difference with common material, utilizes gold
Belong to powder, the workpiece of excellent performance can be prepared.The turbine disk, turbine wheel shaft and baffle plate are the crucial hot junction portions in aero-engine
Part, with the continuous improvement of thrust-weight ratio and power to weight ratio, it is high that the part prepared using traditional casting, forging process can not meet these
The need for performance aero-engine develops, progressively turn by powder metallurgy or metal 3D printing preparation.
At present, during the preparation technology of main flow metal dust is high pressure gas atomization, and the sieving technology of powder is this method
Obtain the metal dust important step of high-quality.The metal dust of required granularity is can obtain by screening, it is ensured that profiled part
Mechanical property；Meanwhile, the reliability that profiled part is used can be improved by being classified the field trash removed in powder.Prior art
In ultrasonic vibrating screen be the low-frequency vibration based on traditional shaker, external high-frequency ultrasonic vibration makes particle on screen cloth into outstanding
Floading condition, is difficult network blocking and can sieve thinner powder.Wherein, traditional method for sieving is to utilize the shaking as exciting source by motor
Dynamic sieve is sieved to metal dust, general principle be by motor by eccentric hammer by rotary motion be changed into level, vertically, incline
Oblique three-D motion, and this motion is passed into compass screen surface, powder reaches the effect of screening so as to be able to penetrate screen cloth.
But, the screening mode of ultrasonic vibrating screen is based on offline sieve, namely powder will be from vacuum or inert gas
It is transported to again in vibrating screen classifier after being taken out under environmental protection, this process makes metal dust be contacted with external environment, generation oxidation,
The problems such as making moist.
The content of the invention
One of purpose of the present invention is to propose a kind of online metal dust screening machine and sieve suitable for 3D printing
Point method, the metal dust for solving prior art presence is transported to the oxidizable, technical problem made moist during screening machine.This
Invent many technique effects elaboration as detailed below that the optimal technical scheme in many technical schemes provided can be generated.
To achieve the above object, the invention provides following technical scheme：
A kind of online metal dust screening machine suitable for 3D printing, including feed hopper, ball valve, screen cover, the first sieve nest are total
Into, the second sieve nest assembly and base, the feed hopper is connected with the ball valve, and the ball valve is connected with the screen cover, described
Air inlet and exhaust outlet be set in screen cover, and the screen cover and the first sieve nest assembly junction are provided with the first screen cloth, described the
Coarse powder tank is connected with one sieve nest assembly, the first sieve nest assembly is with the second sieve nest assembly junction provided with the second sieve
Fine powder tank is connected with net, the second sieve nest assembly, the second sieve nest assembly is connected with the base, set in the base
It is equipped with dynamical system.
It is preferred that, the second sieve nest assembly is connected with ultrasonic generator.
It is preferred that, first screen cloth is that wide-meshed screen, the second screen cloth are fine screen mesh.
It is preferred that, the feed hopper is connected with the ball valve by flange, and the ball valve is connected with the screen cover by flange
Connect.
It is preferred that, the dynamical system include dissipate disk, shaft coupling, connecting shaft, eccentric hammer, motor, it is described dissipate disk with
The connecting shaft is connected by shaft joint.
It is preferred that, sealing ring is provided with outside the shaft coupling.
In addition, the present invention also provides a kind of online metal dust method for sieving suitable for 3D printing, above-mentioned metal is used
Powder sieving machine, including：
S101, protective gas is filled with by the air inlet in screen cover, the air in screening machine is discharged by exhaust outlet；
S102, dynamical system, which is imparted power to, dissipates disk, produces mechanical oscillation；
S103, opens ultrasonic generator and produces high frequency ultrasound vibration, produce the first sieve nest assembly, the second sieve nest assembly high
Frequency vibration；
S104, opens ball valve, metal dust to be sieved is transported in screening machine by feed hopper and sieved, acquisition meets
The metal dust of granularity requirements.
It is preferred that, the protective gas is high-purity Ar gas or N2Gas.
It is preferred that, include after step slol：Pressure in screening machine is detected, when pressure value exceedes preset value in screening machine
When, open exhaust outlet and carry out decompression protection.
It is preferred that, also include after step s 104：Powder is collected, respectively the coarse powder by being connected with the first screening assembly
Tank and the powder for meeting granularity requirements with the fine powder tank collection that the second screening assembly is connected.
The present invention operation principle be：There is provided a kind of online metal dust for the mode that change is sieved offline in the prior art
The mode of screening so that metal dust is directly sieved after preparation, while by being filled with protective gas in screening machine, it is real
Now sieve when atmosphere protection, to avoid metal dust from being in contact after preparation with outside air, reduce oxidization of metal powder with
And make moist, to improve the quality of metal dust；It is using disk is dissipated that the metal dust to be sieved entered from charging aperture is uniform in addition
Paving is scattered on compass screen surface, to reduce the agglomeration of powder, to improve metal dust screening efficiency.
Based on above-mentioned technical proposal, the metal dust that the embodiment of the present invention can solve prior art presence is transported to screening
Technical problem that is oxidizable during machine, making moist.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
The online metal dust screening machine structural representation suitable for 3D printing that Fig. 1 is provided by the embodiment of the present invention；
Fig. 2 is I portions close-up schematic view in Fig. 1；
The online metal dust method for sieving flow chart suitable for 3D printing that Fig. 3 is provided by the embodiment of the present invention.
Reference：
Feed hopper 1；Ball valve 2；Screen cover 3；First sieve nest assembly 4；Second sieve nest assembly 5；
Base 6；Air inlet 31；Exhaust outlet 32；First screen cloth 41；Coarse powder tank 42；
Second screen cloth 51；Fine powder tank 52；Dynamical system 7；Dissipate disk 71；Shaft joint 72；
Connecting shaft 73；Eccentric hammer 74；Motor 75；Ultrasonic generator 8.
Embodiment
Be referred to accompanying drawing Fig. 1~Fig. 3 below and word content understand present disclosure and it is of the invention with it is existing
Distinctive points between technology.Hereafter accompanying drawing and enumerate the present invention some alternative embodiments by way of, to the present invention
Technical scheme (including optimal technical scheme) is described in further detail.It should be noted that：Any skill in the present embodiment
Art feature, any technical scheme are the one or more in the technical characteristic or optional technical scheme of plurality of optional, in order to
All alternative technical characteristics of the invention impossible to exhaust and alternative technical side in this document the need for description is succinct
Case, the embodiment for being also not easy to each technical characteristic emphasizes that it is one of optional numerous embodiments, so this area
Technical staff should know：Any technological means of the invention that provide can be replaced or the present invention is provided any two
Individual or more technological means or technical characteristic are combined mutually and obtain new technical scheme.Any skill in the present embodiment
Art feature and any technical scheme are not limited the scope of the invention, and protection scope of the present invention should include this area
Technical staff does not pay the thinkable any alternate embodiments of creative work institute and those skilled in the art by the present invention
Any two of offer or more technological means or technical characteristic technical scheme new obtained from being combined mutually.
The embodiments of the invention provide a kind of online metal dust screening machine and method for sieving suitable for 3D printing.
Illustrated in more detail with reference to Fig. 1~Fig. 3 technical schemes provided the present invention.
A kind of online metal dust screening machine suitable for 3D printing that the embodiment of the present invention is provided, as shown in figure 1, bag
Include feed hopper 1, ball valve 2, screen cover 3, the first sieve nest assembly 4, the second sieve nest assembly 5 and base 6, the feed hopper 1 with it is described
Ball valve 2 is connected, and the ball valve 2 is connected with the screen cover 3, and air inlet 31 and exhaust outlet 32, the screen cover are set in the screen cover 3
3 are provided with the first screen cloth 41 with the junction of the first sieve nest assembly 4, are connected with coarse powder tank 42, institute on the first sieve nest assembly
State the first sieve nest assembly 4 and be provided with the junction of the second sieve nest assembly 5 on the second screen cloth 51, the second sieve nest assembly 5 and connected
Fine powder tank 52 is connected to, the second sieve nest assembly 5 is connected with the base 6, and dynamical system 7 is provided with the base 6.
The metal dust screening machine that the present embodiment is provided, including feed hopper 1, ball valve 2, screen cover 3, from top to bottom, charging
Bucket 1 is tightly connected with ball valve 2, and ball valve 2 is tightly connected with screen cover 3, and air inlet 31 and exhaust outlet 32 are provided with screen cover 3, is used to
Protection gas circuit is passed through in screening machine.Wherein, screen cover 3 is connected with the first sieve nest assembly 4, and junction is provided with the first screen cloth
41st, the first sieve nest assembly 4 is connected with the second sieve nest assembly 5, and junction is provided with the second screen cloth 51, the second sieve nest assembly 5 and base 6
It is connected with connection, the first sieve nest assembly 4 on coarse powder tank 42, the second sieve nest assembly 5 and is connected with fine powder tank 52, is set in base 6
Dynamic system 7.Specifically, the first screen cloth 41 is wide-meshed screen.
The present embodiment in the screen cover 3 of screening machine by setting air inlet 31 and exhaust outlet 32 so that can be in screening machine
Protection gas circuit is inside passed through, the screening that metal dust is carried out under the protection of atmosphere is realized, to reduce metal dust and air, aqueous vapor
Contact, it is ensured that the metal dust quality of screening.
Further, in addition to ultrasonic generator 8, the second sieve nest assembly 5 is connected with ultrasonic generator 8.There is provided high
The second sieve nest assembly is given in frequency ultrasonic vibration so that suspended state is presented in the metal dust on the fine screen mesh of the second sieve nest assembly 5, so that
Avoid blocking wire side, to screen out thinner metal powder granulates.
Further, the feed hopper 1 is connected with the ball valve 2 by flange, and the ball valve 2 passes through with the screen cover 3
Flange is connected.The mode connected by using flange is attached, and to realize on the basis of stable connection, meets air-tightness
It is required that, make to form atmosphere protection environment in screening machine, further to reduce oxidation of the metal dust in screening process.It is preferred that,
Each junction being previously mentioned in the present embodiment is respectively provided with sealing device, to ensure the air-tightness of screening plant.
Further, the dynamical system 7 includes dissipating disk 71, shaft coupling 72, connecting shaft 73, eccentric hammer 74, motor 75,
Specifically as shown in Fig. 2 wherein, the disk 71 that dissipates is connected with the connecting shaft 73 by shaft joint 72.Start motor 75 to pass through
Shaft joint 72, which is imparted power to, dissipates disk 71, when screening machine works, opens ball valve 2, metal dust is fallen on by feed hopper 1
Dissipate 71 on, dissipate disk 71 rotated under the drive of motor so that metal dust under the influence of centrifugal force, according to particle size,
Depart from successively and dissipate disk 71, be evenly distributed on from the screen cloth center of circle on wire side that is remote and entering.
Further, the outside of shaft coupling 73 is provided with sealing ring, for realizing the sealing with the second sieve nest assembly 5, with
Further avoid sieving the oxidation in powder process.
In addition, the present invention also provides a kind of online metal dust method for sieving suitable for 3D printing, above-mentioned metal is used
Powder sieving machine sieves metal dust, as shown in figure 3, including：
S101, protective gas is filled with by the air inlet 31 in screen cover 3, the air in screening machine is passed through the row of exhaust outlet 32
Go out；
S102, dynamical system 7, which is imparted power to, dissipates disk 71, produces mechanical oscillation；
S103, opens ultrasonic generator and produces high frequency ultrasound vibration, produce the first sieve nest assembly, the second sieve nest assembly high
Frequency vibration；
S104, opens ball valve, metal dust to be sieved is transported in screening machine by feed hopper and sieved, acquisition meets
The metal dust of granularity requirements.
The metal dust method for sieving that the present embodiment is provided, is filled with protection gas by the air inlet 31 in screen cover 3 first
The protective gas of body, specially purity more than 99.999%, such as high-purity Ar gas or high-purity N2Gas, to cause in screening machine
Air discharged by exhaust outlet 32, so as to can be sieved into the metal dust to be sieved in screening machine under atmosphere protection
Point, to reduce the oxidative phenomena of metal dust；Secondly by dynamical system is started, impart power to and dissipate disk 71, dissipate disk
71 produce mechanical oscillation；Ball valve 2 is finally opened, makes metal dust to be sieved by being fallen under feed hopper 1 full of protective gas
Sieved in screening machine, when metal dust falls into scattered disk 71, concomitant rotation, and then under the influence of centrifugal force, depart from equal
Disk 71 is dissipated, it is ascending according to particle diameter, it is dispersed in the wide-meshed screen of the first sieve nest assembly 4 drawn near from the screen cloth center of circle
On；Be then turned on ultrasonic generator 8, vibrated by high frequency ultrasound produced by ultrasonic generator, make the first sieve nest assembly 4 and
Second sieve nest assembly 5 produces dither, and the metal dust fallen from scattered disk 71 is dispersed in the thick of the first sieve nest assembly 4
On screen cloth, powder collection is carried out by the coarse powder tank being connected with wide-meshed screen, under high frequency ultrasound effect of vibration, meeting granularity will
Ask, relatively thick powder is rested on wide-meshed screen, and relatively thin powder then enters the fine screen mesh of the second sieve nest assembly 5
On, fines collection is carried out by the fine powder tank being connected with fine screen mesh.
Further, also include after step slol：Pressure in screening machine is detected, when pressure value exceedes in advance in screening machine
If during value, opening exhaust outlet and carrying out decompression protection with explosion-proof.Specifically, when pressure is more than 0.6MPa in screening machine, starting row
Gas port 32 starts decompression protection with explosion-proof.
The metal dust method for sieving that the present embodiment is provided, by being filled with protective gas in screening machine, to avoid system
Powder and air contact in powder-screening process, carry out the screening of metal dust under atmosphere protection, in addition, being made by dissipating disk
Powder is dispersed in screen cloth wire side, to improve metal dust screening quality and screening efficiency.
Any technical scheme disclosed in the invention described above unless otherwise stated, if it discloses number range, then
Disclosed number range is preferred number range, it is any it should be appreciated by those skilled in the art：It is preferred that number range
The only obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, it is impossible to
Exhaustion, so just open component values of the invention are to illustrate technical scheme, also, the above-mentioned numerical value enumerated is not
The limitation to the invention protection domain should be constituted.
If the word such as " first ", " second " is used herein come if limiting parts, those skilled in the art should
This knows：" first ", the use of " second " are intended merely to facilitate in description and parts distinguished such as no Stated otherwise
Outside, above-mentioned word does not have special implication.
In addition, being used for applied in any technical scheme disclosed in the invention described above represents the art of position relationship or shape
Its implication includes approximate with its, similar or close state or shape to language unless otherwise stated.Any part that the present invention is provided
Both can be to be assembled by multiple single parts, or the separate part that integrally formed technique is manufactured.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among claimed technical scheme scope of the invention.
Claims (10)
1. a kind of online metal dust screening machine suitable for 3D printing, it is characterised in that including feed hopper, ball valve, screen cover,
One sieve nest assembly, the second sieve nest assembly and base, the feed hopper are connected with the ball valve, and the ball valve connects with the screen cover
Connect, air inlet and exhaust outlet be set in the screen cover, the screen cover is provided with the first screen cloth with the first sieve nest assembly junction,
It is connected with coarse powder tank on the first sieve nest assembly, the first sieve nest assembly and the second sieve nest assembly junction are provided with the
Fine powder tank is connected with two screen clothes, the second sieve nest assembly, the second sieve nest assembly is connected with the base, the base
Inside it is provided with dynamical system.
2. metal dust screening machine as claimed in claim 1, it is characterised in that the second sieve nest assembly and ultrasonic generator
Connection.
3. metal dust screening machine as claimed in claim 1, it is characterised in that first screen cloth is wide-meshed screen, the second screen cloth
For fine screen mesh.
4. metal dust screening machine as claimed in claim 1, it is characterised in that the feed hopper passes through flange with the ball valve
Connection, the ball valve is connected with the screen cover by flange.
5. metal dust screening machine as claimed in claim 1, it is characterised in that the dynamical system includes dissipating disk, shaft coupling
Device, connecting shaft, eccentric hammer, motor, the disk that dissipates are connected with the connecting shaft by shaft joint.
6. metal dust screening machine as claimed in claim 1, it is characterised in that sealing ring is provided with outside the shaft coupling.
7. a kind of online metal dust method for sieving suitable for 3D printing, using above-mentioned metal dust screening machine, its feature exists
In, including：
S101, protective gas is filled with by the air inlet in screen cover, the air in screening machine is discharged by exhaust outlet；
S102, dynamical system, which is imparted power to, dissipates disk, produces mechanical oscillation；
S103, opens ultrasonic generator and produces high frequency ultrasound vibration, the first sieve nest assembly, the second sieve nest assembly is produced high frequency vibrating
It is dynamic；
S104, opens ball valve, metal dust to be sieved is transported in screening machine by feed hopper and sieved, and acquisition meets granularity
It is required that metal dust.
8. metal dust method for sieving as claimed in claim 5, it is characterised in that the protective gas is high-purity Ar gas or N2
Gas.
9. metal dust method for sieving as claimed in claim 5, it is characterised in that include after step slol：Detection sieve
Pressure in extension set, when pressure value exceedes preset value in screening machine, opens exhaust outlet and carries out decompression protection.
10. metal dust method for sieving as claimed in claim 5, it is characterised in that also include after step s 104：Collect
Powder, respectively by meeting with the first coarse powder tank for be connected of screening assembly and with the fine powder tank collection that the second screening assembly is connected
The powder of granularity requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270532.0A CN107051865A (en) | 2017-04-24 | 2017-04-24 | A kind of online metal dust screening machine and method for sieving suitable for 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270532.0A CN107051865A (en) | 2017-04-24 | 2017-04-24 | A kind of online metal dust screening machine and method for sieving suitable for 3D printing |
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| Publication Number | Publication Date |
|---|---|
| CN107051865A true CN107051865A (en) | 2017-08-18 |
Family
ID=59603490
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710270532.0A Pending CN107051865A (en) | 2017-04-24 | 2017-04-24 | A kind of online metal dust screening machine and method for sieving suitable for 3D printing |
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Cited By (8)
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| CN107931620A (en) * | 2017-11-23 | 2018-04-20 | 成都优材科技有限公司 | A kind of method for sieving of metal dust |
| CN108213431A (en) * | 2018-01-22 | 2018-06-29 | 华南理工大学 | A kind of air-tightness powder sieving System and method for applied to metal 3D printer |
| CN108607991A (en) * | 2018-05-19 | 2018-10-02 | 安徽中健三维科技有限公司 | A kind of powder recovering device of high quality |
| CN109482375A (en) * | 2018-12-29 | 2019-03-19 | 上海材料研究所 | It is a kind of for sieving the device and method thereof of metal powder |
| CN110918989A (en) * | 2019-11-30 | 2020-03-27 | 湖南云箭集团有限公司 | Simple automatic powder screening device for laser selective melting technology |
| CN112138989A (en) * | 2020-07-22 | 2020-12-29 | 西安交通大学 | Active metal powder transports oxygen screen separation screening system |
| CN112743102A (en) * | 2019-10-29 | 2021-05-04 | 通用电气公司 | Broadband filter for powder systems |
| CN114405806A (en) * | 2021-12-20 | 2022-04-29 | 北京当升材料科技股份有限公司 | System for controlling movement track of material feeding of vibrating screen, application and control method thereof |
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| CN112743102B (en) * | 2019-10-29 | 2023-10-10 | 通用电气公司 | Broadband filter for powder systems |
| CN110918989A (en) * | 2019-11-30 | 2020-03-27 | 湖南云箭集团有限公司 | Simple automatic powder screening device for laser selective melting technology |
| CN112138989A (en) * | 2020-07-22 | 2020-12-29 | 西安交通大学 | Active metal powder transports oxygen screen separation screening system |
| CN114405806A (en) * | 2021-12-20 | 2022-04-29 | 北京当升材料科技股份有限公司 | System for controlling movement track of material feeding of vibrating screen, application and control method thereof |
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Application publication date: 20170818 |