CN207288885U - Metal dust mixing arrangement and high throughput metal alloy preparation system - Google Patents
Metal dust mixing arrangement and high throughput metal alloy preparation system Download PDFInfo
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- CN207288885U CN207288885U CN201720824421.5U CN201720824421U CN207288885U CN 207288885 U CN207288885 U CN 207288885U CN 201720824421 U CN201720824421 U CN 201720824421U CN 207288885 U CN207288885 U CN 207288885U
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- metal dust
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Abstract
It the utility model is related to a kind of metal dust mixing arrangement and high throughput metal alloy preparation system, wherein, metal dust carrier gas inlet is opened up on hollow cylinder upper end side wall, the metal dust mixing arrangement further includes the metal dust gas-carrier pipeline for corresponding and penetrating through with the metal dust carrier gas inlet, the metal dust gas-carrier pipeline is parallel with the tangential direction of the cylinder lateral wall, wherein, ratio is 1 between the diameter of the metal dust gas-carrier pipeline and the maximum gauge of the cylinder：(1 4), the metal dust mixing arrangement can improve the probability of metal dust collision, improve metal dust mixing efficiency.The metal dust being uniformly mixed by above-mentioned metal dust mixing arrangement can be carried out laser melting shaping and prepare required metal alloy by the high throughput metal alloy preparation system, and the metal dust mixing arrangement can provide more accurate and mixability more preferable metal dust.
Description
【Technical field】
It the utility model is related to metal 3D printing field, and in particular to a kind of metal dust mixing arrangement and high throughput metal
Alloy preparation system.
【Background technology】
Metal 3D printing be one kind based on digital model file, can bond raw material with powdery metal conduct,
Come the technology of constructed object by way of successively printing.In the prior art, usually in increasing material manufacturing equipment print procedure
Middle priority is passed through two kinds of metal dusts and is printed, so as to form functionally gradient material (FGM) when preparing sample.But in the prior art can not
Quantitative proportioning is carried out to the component of different metal, can not meet to prepare the special block alloy material for particularly forming design component
Material.
Further, when metal dust mixes, due to the difference of metal powder granulates size, density size, often make
The metal dust mixing is uneven, the problem of localized metallic amount of powder is excessive occurs, leverages the metal prepared and closes
The performance of gold.
【Utility model content】
The problem of to overcome current metal dust mixing scattered uneven, the utility model provide a kind of metal dust mixing dress
Put and high throughput metal alloy preparation system.
The utility model provides to solve a technical solution of above-mentioned technical problem：A kind of metal dust mixing arrangement, its
Including hollow cylinder, metal dust carrier gas inlet is opened up on the side wall of cylinder upper end, the metal dust mixing arrangement further includes
With the metal dust carrier gas inlet correspond and penetrate through metal dust gas-carrier pipeline, the metal dust gas-carrier pipeline with
The tangential direction of the cylinder lateral wall is parallel, after being loaded with the gas of carrier gas of metal dust by the metal dust gas-carrier pipeline,
Entered by the metal dust carrier gas inlet in the cylinder and mixed, diameter and the cylinder of the metal dust gas-carrier pipeline
Maximum gauge between ratio be 1：(1-4).
Preferably, the diameter of the metal dust gas-carrier pipeline is equal with the diameter of the metal dust carrier gas inlet.
Preferably, the ratio of the maximum gauge of the length of the metal dust gas-carrier pipeline and the cylinder is 1:(0.5-
2)。
Preferably, between the central shaft of the metal dust gas-carrier pipeline and the radial direction of the cylinder angle in 0 °-
80°。
Preferably, the metal dust carrier gas inlet is symmetrical arranged or is disposed on cylinder lateral wall.
Preferably, the metal dust carrier gas inlet is opened in cylinder lateral wall different height.
Preferably, the metal dust mixing arrangement further comprises that metal dust quantifies module and carrier gas is passed through module,
The metal dust quantifies module and is used to be passed through mould to the metal dust gas-carrier pipeline quantitative delivery metal dust, the carrier gas
Block is used to be passed through gas of carrier gas to the metal dust gas-carrier pipeline.
Preferably, the metal dust is quantified module and is quantitatively passed to the metal dust gas-carrier pipeline in a manner of ultrasonic vibration
Metal dust is sent, wherein, the delivered dose of the ultrasonic vibration is 2~160 μ g/ times, and the frequency of the ultrasonic vibration is
3.125Hz~3200Hz.
Preferably, the carrier gas be passed through module via the metal dust gas-carrier pipeline incessantly into the cylinder it is defeated
Send gas of carrier gas.
The utility model provides to solve a technical solution of above-mentioned technical problem：It is prepared by a kind of high throughput metal alloy
System, it includes laser melting forming module and metal dust mixing arrangement as described above, the metal dust mixing arrangement
Metal dust after mixing is exported to the laser melting forming module to the preparation for carrying out metal alloy.
Relative to the prior art, metal dust mixing arrangement provided by the utility model has the following advantages：It is described
Metal dust mixing arrangement enters gas of carrier gas and metal dust in the cylinder via metal dust carrier gas inlet, carrier gas gas
Body can at the same time do with metal dust and radially and tangentially move, and the gas being passed through is mixed into metal dust and is loaded with metal dust
Gas of carrier gas, the gas of carrier gas for being loaded with metal dust are close to the internal chamber wall progress annularly flow of the cylinder and form annular rapids
Stream, can accelerate metal dust to flow and improve the probability of metal dust collision, so that metal dust mixing efficiency is improved, with effective
Solve the problems, such as that the mixing of various metals powder is uneven.
Relative to the prior art, high throughput metal alloy preparation system provided by the utility model has as follows excellent
Point：In the high throughput metal alloy preparation system, metal dust can obtain after metal dust mixing arrangement mixing
Quantitative accurate and uniformly mixed metal dust are obtained, therefore, during subsequently laser melting is carried out to metal dust, can be protected
Demonstrate,prove the metal alloy prepared and the matching degree of design is higher, so as to can further improve the essence of high throughput metal alloy preparation
Parasexuality and stability.
【Brief description of the drawings】
Fig. 1 is the module diagram for the metal dust mixing arrangement that the utility model first embodiment provides.
Fig. 2 is the schematic diagram that annular turbulent flow is formed in the cylinder.
Fig. 3 A are the structure diagrams of one embodiment of the cylinder.
Fig. 3 B are the structure diagrams of another embodiment of the cylinder.
Fig. 3 C are the structure diagrams of another embodiment of the cylinder.
Fig. 3 D are the dimensional structure diagrams of cylinder shown in Fig. 3 C.
Fig. 4 A are the structure diagrams of one embodiment of the cylinder.
Fig. 4 B are the structure diagrams of another embodiment of cylinder shown in Fig. 4 A.
Fig. 5 is the metal dust mixing arrangement middle cylinder body and metal dust carrier gas that the first embodiment of the utility model provides
The dimensional structure diagram of pipeline.
Fig. 6 is the structure diagram of another angle of metal dust mixing arrangement shown in Fig. 1.
Fig. 7 is the enlarged structure schematic diagram shown in R in Fig. 6.
Fig. 8 is the structure diagram of another embodiment of metal dust mixing arrangement.
Fig. 9 A be the utility model first embodiment in the first embodiment gas of carrier gas and metal dust
One of view.
Fig. 9 B be the utility model first embodiment in the first embodiment gas of carrier gas and metal dust
The two of view.
Figure 10 be the utility model first embodiment in the second embodiment structure diagram.
Figure 11 is the module signal for the high throughput metal alloy preparation system that the second embodiment of the utility model provides
Figure.
【Embodiment】
In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only solving
The utility model is released, is not used to limit the utility model.
Please refer to Fig.1 and Fig. 2, a kind of metal dust mixing arrangement 10 is provided in the first embodiment of the utility model.Institute
Stating metal dust mixing arrangement 10 includes hollow cylinder 101, and the cylinder 101 has opposite top and bottom, in cylinder 101
Metal dust carrier gas inlet 102 is opened up on the side wall of upper end, 101 lower end of cylinder opens up metal dust delivery outlet 110.Wherein,
As shown in FIG., the metal dust carrier gas inlet is to be set with height or different height.
The metal dust mixing arrangement further includes the gold for corresponding and penetrating through with the metal dust carrier gas inlet 102
Belong to powder gas-carrier pipeline 104, the metal dust gas-carrier pipeline 104 is parallel with the tangential direction of 101 side wall of cylinder, metal
Powder and gas of carrier gas can be formed by the metal dust gas-carrier pipeline 104 to be loaded with after the gas of carrier gas of metal dust with certain
Speed is entered in the cylinder 101 by the metal dust carrier gas inlet 102, and annular turbulent closure scheme point is formed in cylinder 101
Exported after dissipating from 101 lower end metal dust delivery outlet 110 of cylinder.
More preferably, the cylinder 101 from top to bottom includes cylindrical section 1011 and conical section 1012, wherein, the cylindrical section
1011 diameter is equal to the maximum gauge of the conical section 1012, and one end of the cylindrical section 1011 and the conical section
One end connection of 1012 maximum gauges.The metal dust mixing arrangement 10 is further in the cylindrical section 1011 of the cylinder 101
On open up the metal dust carrier gas inlet 102 connected with the cylinder 101, the metal dust carrier gas inlet 102 is arranged on described
On the side wall of 101 cylindrical section 1011 of cylinder, metal dust and gas of carrier gas are through described in the metal dust carrier gas inlet 102 entrance
In cylinder 101, annular turbulent flow is formed in the cylinder 101 so that metal dust is uniformly mixed.
The metal dust delivery outlet 110 can be arranged on the bottom of the cylinder 101, namely 101 conical section of the cylinder
1012 bottom, the metal dust delivery outlet 110 are used to export uniformly mixed metal dust to the equipment of other peripheral hardwares
In, preparation facilities, the powder storage unit of such as metal alloy.Referring to Fig. 2, in the utility model, the annular turbulent flow P
Refer to gas of carrier gas with the gas of carrier gas for being loaded with metal dust that metal dust is mixed to form on the interior road with screw type of cylinder 101
Footpath, which is advanced, to be mixed.
Especially, the metal dust mixing arrangement 10 can be used for the scattered of same metal dust, it can also be used to a variety of
The mixing of metal dust disperses, and can effectively avoid metal dust and occurs luming or disperse non-uniform problem.It is a variety of in order to realize
The mixing of metal dust disperses, and the quantity of the metal dust carrier gas inlet 102 can be multiple.In some preferably embodiments
In, the metal dust carrier gas inlet is symmetrical arranged or is disposed on cylinder lateral wall, and same kind of metal dust can be from
It is symmetrical arranged or the spaced metal dust carrier gas inlet 102 enters in the cylinder 101.
In the utility model, the diameter of the diameter of the metal dust carrier gas inlet 102 and the cylindrical section 1011 it
Between ratio be 1：(1-4).Preferably, the diameter of the diameter of the metal dust carrier gas inlet 102 and the cylindrical section 1011 it
Between ratio be 1：(2-3).Specifically, the diameter of the diameter of the metal dust carrier gas inlet 102 and the cylindrical section 1011 it
Between ratio can be 1:2.
In some specific embodiments, a diameter of 1cm-5cm of the metal dust carrier gas inlet 102, specifically, institute
State metal dust carrier gas inlet 102 diameter may further be 1cm, 1.2cm, 1.6cm, 1.8cm, 2cm, 2.5cm, 2.7cm,
3cm, 4.2cm or 5cm etc..
In the utility model, the metal dust carrier gas inlet 102 and the restriction in 101 size of cylinder, favorably
After metal dust and gas of carrier gas enter the cylinder 101, preferably mixed effect, such as the metal dust carrier gas can obtain
Size differs larger between entrance 102 and the cylinder 101, then problems with occurs：
The first situation：After gas of carrier gas drives metal dust to enter the cylinder 101, due to the ruler of the cylinder 101
The very little size relative to the metal dust carrier gas inlet 102 is smaller, and the gas of carrier gas is mixed to form annular with metal dust
The diameter that turbulent flow is initially formed is more than the diameter of the cylinder 101, therefore, the annular that the gas of carrier gas is mixed with metal dust
Turbulent flow is subject to the larger friction of the inner wall of the cylinder 101, causes the speed of mixing to substantially reduce；
The second situation：After gas of carrier gas drives metal dust to enter the cylinder 101, due to the ruler of the cylinder 101
The very little size relative to the metal dust carrier gas inlet 102 is larger, then is initially formed after gas of carrier gas is mixed with metal dust
Annular turbulent flow diameter be less than the cylinder 101 diameter, since the gas flow and flow velocity that are passed through gas of carrier gas are fixed, because
This, gas of carrier gas can not carry out enough grains with the powder stream (gas of carrier gas for being loaded with metal dust) that metal dust is mixed to form
Son collision, so as to influence the effect finally mixed.
In the utility model some preferred embodiments, as shown in fig. 3, the cylindrical section of the cylinder 101 is arranged at
Multiple metal dust carrier gas inlets 102 in the tangential direction of 1011 side walls can be to be set with height.In the utility model
In addition in some preferred embodiments, as shown in Fig. 3 B, Fig. 3 C and Fig. 3 D, it is arranged at the cylindrical section 1011 of the cylinder 101
Can also be that different height is set between multiple metal dust carrier gas inlets 102 in the tangential direction of side wall, the metal
The selection of 102 height of powder carrier gas inlet can determine that the density such as metal dust is smaller according to the density of the metal dust of injection,
Then the height of the metal dust carrier gas inlet 102 is higher, is differed so as to be provided for the metal dust with different densities
Operating path so that further lifted metal dust mixing the uniformity.Further, due to the less metal powder of density
End is easily transported to the upper and lower ends of the cylinder 101 by gas of carrier gas in the mixed process in the cylinder 101, therefore, will
The smaller metal dust of density enters from highly larger metal dust carrier gas inlet, can make the less metal dust operation of density
To the metal dust delivery outlet 110 path it is elongated, so as to avoid the less metal dust of density prior to color density compared with
Big metal dust is transported to the metal dust delivery outlet 110.
More preferably, multiple metal dust carrier gas inlets 102 different with quantity and distributing position can be selected according to demand
Metal dust mixing arrangement 10, to obtain optimal metal dust mixing and dispersion effect.Wherein, as shown in arrow in Fig. 3 D
The direction of motion of direction, that is, gas of carrier gas and metal dust.
Orthogonal X-direction and Y-direction are defined, wherein, the length of the cylindrical section 1011 of the cylinder 101 in the Y direction
Degree is the height of the cylindrical section 1011.Specifically as shown in figs. 3 a-3 c, the cylindrical section 1011 of the cylinder 101 by it is upper it
Include the first cylindrical section 1001,1003 and second cylindrical section 1002 of entrance down.Wherein, first cylindrical section 1001 is in institute
State in cylindrical section 1011 the maximum metal dust carrier gas inlet 102 of height central axes L1 and 1011 highest point of cylindrical section it
Between cylindrical section.Second cylindrical section 1002 is metal dust carrier gas inlet highly minimum in the cylindrical section 1011
Cylindrical section between 102 1011 lowest point of central axes L2 and the cylindrical section.The entrance 1003 is arranged on the described first circle
Between shell of column 1001 and second cylindrical section 1002.
Preferably, in some other embodiments, the metal dust delivery outlet 110 can also be opened in the second cylindrical section
1002 end.
During the metal dust mixes, the annular turbulent flow part that gas of carrier gas is formed with metal dust can be first
After progress mixed once is disperseed into first cylindrical section 1001, then enter the described second circle in the form of screw type powder stream
In shell of column 1002；The another part for the annular turbulent flow that gas of carrier gas is formed with metal dust is then directly entered second cylindrical section
It is scattered that mixing is carried out in 1002.Such setting, can be beneficial to effective collision occurs between metal dust, so as to improve metal dust
Mixing efficiency.
Dispersion effect is more preferably mixed in order to obtain, the height of first cylindrical section 1001 and the cylindrical section 1011
Diameter ratio is 1：(2-4), specifically, the height of first cylindrical section 1001 and the diameter ratio of the cylindrical section 1011
It may further be 1:2、1:2.3、1:2.7、1:3、1:3.5 or 1:4 etc..
Further, the diameter ratio of the height of second cylindrical section 1002 and the cylindrical section 1011 is 1:
(0.01-1), specifically, the diameter ratio of the height of second cylindrical section 1002 and the cylindrical section 1011 is 1:0.01、1:
0.03、1:0.05、1:0.07、1:0.1、1:0.5、1:0.7 or 1:1 etc..
Please continue to refer to Fig. 4 A and Fig. 4 B, the metal dust gas-carrier pipeline 104 and the metal dust carrier gas inlet 102
Diameter it is equal.Gas of carrier gas drives metal dust to be mixed to form by the metal dust gas-carrier pipeline 104 and is loaded with metal powder
After the gas of carrier gas at end, entered by the metal dust carrier gas inlet 102 in the cylinder 101.Preferably, in the utility model
In, the gas of carrier gas and metal dust can be pre-mixed in the metal dust gas-carrier pipeline 104, so that metal dust
Obtain more preferably mixed effect.
Preferably, dispersion effect is more preferably pre-mixed in order to obtain, as shown in Figure 4 A, the metal dust gas-carrier pipeline
The diameter ratio of 104 length F and the cylindrical section 1011 is 1:(0.5-2), further, the metal dust carrier gas pipe
The specific ratio of the diameter of the length on road 104 and the cylindrical section 1011 can be 1:0.5、1:0.7、1:0.9、1:1、1:1.2、1:
1.3、1:1.5、1:1.7、1:1.9 or 1:2 etc..
As shown in Figure 4 B, the utility model some preferably in embodiment, the metal dust gas-carrier pipeline 104
Angle is in 0 ° -80 °, specifically, the metal dust gas-carrier pipeline 104 between central shaft and the radial direction R of the cylinder 101
Angle between the cylinder 101 can be 0 °, 15 °, 18.5 °, 20 °, 31 °, 37 °, 43 °, 45 °, 49 °, 53 °, 59 °, 60 °,
63 °, 67 °, 75 ° or 80 ° etc..More preferably, between the metal dust gas-carrier pipeline 104 and the radial direction R of the cylinder 101
Angle be 0 °, 8 ° or 15 °.As shown in Figure 4 A, the metal dust gas-carrier pipeline 104 and the radial direction side of the cylinder 101
It it is 0 ° to the angle between R.
As shown in Figure 5, the quantity of the metal dust carrier gas inlet 102 is four, it is preferable that multiple metal powders
Equidistant annular spread is on the side wall of the cylinder 101 between last carrier gas inlet 102.In the utility model further embodiment
In, the quantity of the metal dust carrier gas inlet 102 can also be 2,3,5,6 etc..It is appreciated that the metal dust
The quantity of carrier gas channel 104 is also 4, is corresponded with metal dust carrier gas inlet 102.
In the utility model some embodiments, the different metal dust carrier gas inlets 102 can be passed through different gold
Belong to powder carrier gas, further, gas of carrier gas can be identical or not in the different metal dust carrier gas inlets 102
Together, its flow velocity entered in the cylinder 2202 can be identical or different.
The metal dust carrier gas inlet 102 set with height or different height can realize various metals powder with a variety of
It is highly implanted, so that various metals powder obtains a variety of operating paths, therefore, in mixed process, metal dust can be improved
The probability of collision, so as to obtain more preferably metal dust mixing dispersion effect.
Further, cylinder is entered except through adjusting the height of the metal dust carrier gas inlet 102 to adjust metal dust
, can also be by controlling flow and powder feed rate etc., to improve the mixing of various powders outside mixed path in body 101
Efficiency.
Specifically, being passed through the flow velocity that the gas of carrier gas that module 103 transmits enters in the cylinder 101 by the carrier gas can be
2-14m/s, it is preferable that the gas of carrier gas flow velocity of the entrance can also be 2m/s, 4.5m/s, 5.6m/s, 7.6m/s, 8.2m/s,
8.5m/s, 8.7m/s, 9.3m/s, 9.6m/s, 9.9m/s, 10.4m/s, 10.7m/s, 11.5m/s, 11.6m/s etc..Specific carrier gas
The flow velocity of gas is adjusted according to diameter, the conveying capacity of the metal dust of required mixing, is not limited herein.
The specific particle diameter that can refer to metal dust of selection of gas of carrier gas flow velocity is determined with density size.It is new in this practicality
In type, in order to obtain optimal metal dust mixing dispersion effect, then the flow velocity that gas of carrier gas enters the cylinder 101 is 2L/
Min~14L/min, the particle diameter of metal dust is more preferably 20 μm~700 μm, metal in the metal dust carrier gas inlet 102
The conveying capacity of powder is 0.1g/min~50g/min.Further, the load entered in the metal dust carrier gas inlet 102
Gas gas flow rate is 6L/min~12L/min, and the particle diameter of metal dust is more preferably 30 μm~300 μm, and the metal dust carries
The conveying capacity of metal dust is 1g/min~25g/min in gas entrance 102.The utility model some preferably in embodiment,
When metal dust with different densities is entered in the cylinder 101, the flow velocity of gas of carrier gas and the density of metal dust are into just
Than.
Further, can also be by controlling different gas of carrier gas and metal dust in order to obtain more preferably mixed effect
The gas of carrier gas for being loaded with metal dust formed enters sequencing and its entrance of the metal dust carrier gas inlet 102
Interval time.Preferably, on the premise of same particle size size, the larger metal dust of density is later than the less metal powder of density
End enters in the cylinder 101；The different metal dust of density is successively into the interval time in the cylinder 101
0.01s-20s.Above-mentioned interlude according to the particle diameter and the big I of density of metal dust not of the same race be specially 0.01s,
0.05s, 0.07s, 0.1s, 0.4s, 0.1s, 0.3s, 4s, 7s, 9.1s, 12s, 15s, 18s or 20s etc..
The utility model some preferably in embodiment, as shown in Figure 6, in order to make the metal dust carrier gas inlet
102 can be passed through metal dust and gas of carrier gas with controlled amounts, the metal dust mixing dress into the cylinder 101 at the same time
Put that 10 metal dusts for further comprising connecting with the metal dust gas-carrier pipeline 104 quantify module 113 and carrier is passed through mould
Block 2203, wherein, the metal dust quantifies module 113 and is used for the 104 quantitative delivery metal of metal dust gas-carrier pipeline
Powder, the carrier gas are passed through module 103 and are used to be passed through gas of carrier gas to the metal dust gas-carrier pipeline 104, it is preferable that in reality
In new, the component of the gas of carrier gas is not limited, and is more preferably inert gas, and such as nitrogen, argon gas are more excellent at some
Embodiment in, can also support polynary gas of carrier gas in the metal dust mixing arrangement 10.
The utility model some preferably in embodiment, the metal dust quantifies module 113 and includes but is not limited to：
Scrape appointing in suction dust feeder, sound wave/ultrasound dust feeder, electrostatic valve dust feeder, electrostatic suction pipe powder proportioning device etc.
Meaning is a kind of.
In the utility model in some preferred embodiments, the metal dust, which quantifies, makes a reservation for required matter in module 113
The quantitative conveying of the metal dust of amount and species is that the high-precision Powder Delivery system using ultrasonic vibration capillary as core is realized.
The metal dust, which quantifies module 113, to realize that powder sending quantity is determined for microgram to gram quantity level is per minute according to default powder outlet quantity
Measure powder feeding.
Specifically, in the metal dust quantifies module 113, metal dust is in a manner of ultrasonic vibration to metal dust
High-precision delivering is carried out, wherein, the delivered dose of ultrasonic vibration is 2~160 μ g/ times, and the selection of its specific delivered dose can root
It is adjusted according to the amplitude of ultrasonic vibration.The metal dust is quantified in module 113, and the ultrasonic vibration frequency is 3.125Hz
~3200Hz, weight, metal dust particle size and the conveying speed of the selection and single conveying metering of its ultrasonic vibration frequency
It is related.The ultrasonic vibration frequency also may further be 3.125Hz~32Hz, 33.5Hz~100Hz, 100.2Hz~500Hz,
521Hz~1100Hz, 1151Hz~1532Hz, 1541Hz~2001Hz, 1541Hz~2001Hz, 2110Hz~2560Hz or
2700Hz~3200Hz etc..
Please continue to refer to Fig. 6, the carrier gas is passed through module 103 via the metal dust carrier gas inlet 102 incessantly
The delivery of carrier gas gas into the cylinder 101.The metal dust quantifies module 113 at the same time to the metal dust carrier gas inlet
Quantitative metal dust is passed through in 102.As shown in FIG., by the carrier gas be passed through the gas of carrier gas that module 103 exports drive by
The metal dust quantifies the metal dust of the output of module 113 via the metal dust carrier gas inlet 102 towards the cylinder
Moved in 101.Especially, since the carrier gas is passed through module 103 as the offer carrier gas gas into the cylinder 101 incessantly
Body, therefore, the gap of 113 delivery of metal powder of module is quantified in the metal dust, the gas of carrier gas tool being passed through incessantly
There is following beneficial effect：
First is to provide lasting move for the turbulent flow of existing gas of carrier gas in the cylinder 101 and metal dust formation
Power；
Second is the metal dust adhered on 102 inner wall of metal dust carrier gas inlet capable of washing, so as to guarantee fund
Belong to the accurate delivering of powder.
In the present embodiment, two metal dust carrier gas inlets 102 being oppositely arranged can be passed through the gold of identical type
Belong to powder.
Further refer to Fig. 7, the gas of carrier gas being passed through from the metal dust gas-carrier pipeline 104 drive metal dust to
The metal dust carrier gas inlet 102 to move, the gas of carrier gas is with the metal dust in the metal dust carrier gas pipe
After being pre-mixed in road 104, enter back into the cylinder 101, while do and radially and tangentially move, specifically, the load being passed through
Gas gas is mixed into powder stream (gas of carrier gas for being loaded with metal dust) with metal dust, and the powder stream (is loaded with metal dust
Gas of carrier gas) it is close to the internal chamber wall progress annularly flow of the cylinder 101 and forms annular turbulent flow, so as to accelerate metal dust
Flowing and the probability for improving metal dust collision, so as to improve metal dust mixing efficiency.
Referring to Fig. 8, in some other embodiments of the utility model, the metal dust mixing arrangement 10 is further
Including a single metal dust dispersal device 109, the single metal dust dispersal device 109 can be used for single metal dust
After being pre-mixed with gas of carrier gas, then the gas of carrier gas for being loaded with metal dust that gas of carrier gas and metal dust are formed is sent into
In the cylinder 101.
The utility model by taking Al powder and Fe powder as an example, wherein, the particle size of Al powder and Fe powder is 300 μm
~600 μm.The quality of Al powder is 0.0027kg, and the quality of Fe powder is 0.0078kg, the metal dust mixing arrangement 10
Cylinder 101 a diameter of 5cm, a diameter of 2.5cm of the metal dust carrier gas inlet 102, the metal dust carrier gas pipe
The length on road 104 is 2.5cm, and the height of first cylindrical section 1001 is 2.5cm in the cylindrical section 1011.The cylindrical section 1011
In the height of the second cylindrical section 1002 be 10cm.
In first embodiment of the utility model, as shown in Fig. 9 A- Fig. 9 B, its particular content is as follows：Institute
Stating metal dust mixing arrangement 10 includes four metal dust carrier gas inlets 102, and four metal dust carrier gas inlets 102 are
Set with height.As illustrated in figure 9 a, metal dust gas-carrier pipeline 104 of the Al powder by No. B1 and No. B3, metal dust carrier gas
Entrance 102 enters in the cylinder 101, carries out after mixing scattered 30s for the first time, Fe powder is carried by No. B2 and B4 metal dusts
Gas entrance 102 enters in the cylinder 101, and carrying out second with the Al powder in the cylinder 101 mixes scattered close.Its
In, the flow velocity that the carrier gas is passed through the gas of carrier gas that module 103 is passed through No. B1 and B3 metal dusts carrier gas inlet 102 is 8L/
Min, it is 12L/min that the carrier gas, which is passed through module 103 and is passed through No. B2 and the flow velocity of B4 metal dusts carrier gas inlet 102,.
In second embodiment of the utility model, as shown in Figure 10, itself and above-mentioned first specific embodiment party
Formula difference lies in：Four metal dust carrier gas inlets 102 can be that two kinds of height are set, wherein, symmetrically arranged No. B1
And No. B3 metal dust gas-carrier pipeline 104, metal dust carrier gas inlet 102 be sustained height set, symmetrically arranged No. B2
And No. B4 metal dust gas-carrier pipeline 104, metal dust carrier gas inlet 102 be sustained height set.Wherein, density is less
Al powder as highly larger No. B1 and No. B3 metal dust gas-carrier pipeline 104, described in metal dust carrier gas inlet 102 enters
In cylinder 101, metal dust gas-carrier pipeline 104 of the larger Fe powder of density by highly larger No. B2 and No. B4, metal powder
Last carrier gas inlet 102 enters in the cylinder 101.Therefore, by above-mentioned special setting, the larger Fe powder of density can be made
Mixed path and the mixed path of Al powder are formed and distinguished, so as to obtain more preferably metal dust mixed effect.
In the 3rd embodiment of the utility model, its with above-mentioned first embodiment difference lies in：
Al powder by No. B1 and No. B3 metal dust gas-carrier pipeline 104, metal dust carrier gas inlet 102 enter the cylinder
In body 101, Fe powder is entered in the cylinder 101 by No. B2 and B4 metal dusts carrier gas inlet 102, wherein, Al powder carries
The ratio between the flow velocity of gas gas and the flow velocity of Fe powder gas of carrier gas are 1:3.
In existing mixing arrangement, when Al powder is identical with the particle size of Fe powder, Fe powder is compared with Al powder more
The lower floor of the cylinder 101 is easily deposited on, and causes Fe powder to mix inequality with Al powder.However, above-mentioned first to the 3rd
In embodiment, the flowing in the cylinder 101 can form the turbulent flow of annular to Al powder with Fe powder, so as to improve
Collisional mixing rate between metallic, has further speeded up the mixing velocity for the metal dust for needing to mix, so as to improve metal
The composite rate of particle., it is necessary to which the mixing velocity between the metal ion of mixing is reachable compared with the speed of existing metal dust mixing
To more than 11.6m/s.Using metal dust mixing arrangement 10 provided by the utility model, different gold are realized in time processing
The combination and change of category, can also realize the accurate proportioning of different metal powder.Further, various metals powder due to load
Gas gas is together passed through in the cylinder 101, therefore when can effectively reduce gas of carrier gas and metal dust and being individually passed through, carrier gas gas
Body produces gas shock to metal dust, so that the problem of metal dust horizontal force weakens, and straight line flows downward, from
And the efficiency of metal dust mixing is improved, avoid unmixed uniform metal dust from being directly entered the bottom of the cylinder 101.
More preferably, the metal dust mixing arrangement 10 can be used in the preparation of high throughput metal alloy, can fast precise
Ground produces the part of arbitrarily complicated shape, and can accurately control the supply of powder, realizes local special metal supply, from
And can realize that high throughput prepares metal alloy, improve the flux of experiment and the efficiency of research and development of metal alloy compositions.
As shown in Figure 11, the second embodiment of the utility model provides a kind of high throughput metal alloy preparation system 900,
It include powder quantify module 11, powder mixing with dispatching module 12, laser melting forming module 13, environmental control module 14,
Post-processing module 15 and control module 16.Wherein, the connection of control module 16 controls the powder to quantify module 11, the powder
End mixing and dispatching module 12, the laser melting forming module 13, the environmental control module 14 and the post-processing module
15。
In the utility model, the powder quantify module 11 can the multiple components of synchronization settings metal alloy parameter, just
Required metal alloy is prepared in high throughput.
The powder, which quantifies module 11, includes the powder change setting module 111 and modeling presetting module 112 of connection.Its
In, the powder change setting module 111 is used to set amount of powder change programme, and the modeling presetting module 112 is used to model
And the spraying path of the setting laser melting forming module.Specifically, the powder change setting module 111 and modeling are default
Module 112 according to every physical attribute of powder sort set in advance, powder, can quantitatively obtain each powder variable quantity,
The parameters such as initial powder outlet quantity.The metal alloy preparation system 10 designs and produces 3D printing CAD according to material sample storehouse first
(Compyter Aided Design, CAD) model, generates STL (Stereo Lithography, photocuring
Stereo shaping) file, then (Computer Aided Manufacturing, computer-aided manufacturing, utilizes numerical control machine by CAM
Bed control tool motion, completes part manufacture) model layers in the stl file of above-mentioned generation are converted into 2D thin slices by software,
The metal alloy preparation system 10 can automatically generate the machining path into row metal 3D printing.
The powder mixing and dispatching module 12 are used for mixing, disperse and conveying for metal dust.Specifically, the powder
Mixing is connected with dispatching module 12 with the laser melting forming module 13, for being provided for the laser melting forming module 13
Set at least one metal dust of dosage.As shown in Figure 11, the powder mixing is mixed with dispatching module 12 including powder
Device 121 and powder conveying device 122.Wherein, the first embodiment of the powder mixing device 121 and the utility model provides
Powder mixing device 10 it is identical.
The utility model some preferably in embodiment, mixed in the powder with dispensing in module 12, by the powder
Last mixing arrangement 121 is used in combination with the powder dispenser 122, can effectively improve metal dust mixed effect, can be effective
After the less metal dust of particle diameter is broken up, it is set to be transmitted under certain speed and vibration frequency, in this course metal
Powder will not reunite again.
The utility model some preferably in embodiment, the powder conveying device 122 can be substituted by pipeline, institute
Stating powder mixing device 121 can be directly connected to or the powder mixing device 121 and institute with the laser melting forming module 13
State and set between laser melting forming module 13 multiple pipelines to connect.
The laser melting forming module 13 is used for laser melting and mixes the gold being sent into dispensing module 12 by the powder
Belong to powder.Wherein, the laser spectrum scope sent in the laser melting forming module 13 is 800nm-1300nm, produced
The spot diameter size of laser be 0.1 μm of -1mm.Wherein, for the laser spot diameter restriction, it is ensured that work as system
, will not be excessive due to hot spot during preparing each metal alloy during standby multiple metal alloys, and to the metal of arranged adjacent
Alloy impacts.
The environmental control module 14 is connected with the laser melting forming module 13, for during controlling laser melting
The condition such as environment temperature, humidity, cleanliness factor, air pressure and reaction atmosphere, to obtain optimal reaction environment.In the utility model
In some embodiments, the control module 16 controls the environmental control module 14, to realize to the environmental control module 14
Be precisely controlled.
The high throughput metal alloy preparation system is used to prepare multiple metal alloys on a substrate；Multiple gold
Category alloy is prepared by the identical metal dust of the laser heating molten component ratio of different laser powers or multiple gold
Belong to alloy to be prepared by the different metal dust of the laser heating molten component ratio of same laser power.
Further, be made of in the above-mentioned same metal alloy multiple Rotating fields, multiple Rotating fields by
The laser of different laser powers, that is, identical metal dust of heat fusing component ratio is prepared or multiple Rotating fields are by phase
Laser with laser power heats the different metal dust of molten component ratio and is prepared.In some realities of the utility model
Apply in example, can be by using area of computer aided metal alloy MOLECULE DESIGN on the basis of, design the metal alloy sample library,
It is the metal alloy sample library obtained using result by references and the Experience Design of accumulation.It is specific to need required metal to close
Gold proportioning be located in a very wide scope, then approached layer by layer using combination technique purpose metal alloy proportioning, and finally from
Screening obtains optimal metal alloy composition in thousands of samples.Its maximum feature is can be with the hundreds and thousands of a mesh of single sintering
Metal alloy composition is marked, quick obtaining can be realized by using high throughput metal alloy preparation system provided by the utility model
Optimal proportion, and these metal alloy compositions are prepared as only relied in conventional method that can not be rapidly completed.
The utility model some preferably in embodiment, the high throughput metal alloy preparation system further comprises
The component and its preparation technology parameter of single sample metal alloy in metal alloy sample library are controlled.Such as when preparation three
When prepared by member, quaternary metal alloy, using high throughput metal alloy preparation system provided by the utility model, it can be achieved that polynary
The preparation of metal alloy, the combination of different metal alloy can be also carried out in the different parts of metal alloy, institute further can be achieved
Metal alloy interlayer thermodynamics process combination is stated, so as to prepare with specific part and the conjunction of the metal of particular alloy species
Gold.
Compared with prior art, the metal dust mixing arrangement and high throughput metal alloy system provided in the utility model
Standby system, has the following advantages：
By gas of carrier gas and metal dust via metal dust in metal dust mixing arrangement provided by the utility model
Carrier gas inlet enters in the cylinder, and gas of carrier gas can at the same time be done with metal dust and radially and tangentially move, the carrier gas gas being passed through
Body is mixed into the gas of carrier gas for being loaded with metal dust with metal dust, and the gas of carrier gas for being loaded with metal dust is close to described
The internal chamber wall of cylinder carries out annularly flow and forms annular turbulent flow, and metal dust can be accelerated to flow and improve metal dust collision
Probability, so that metal dust mixing efficiency is improved, effectively to solve the problems, such as that the mixing of various metals powder is uneven.
In metal dust mixing arrangement provided by the utility model, the metal dust carrier gas inlet and the cylinder
Angle is in 0 ° -80 ° between radial direction, and the restriction of angle can be to the operating path of gas of carrier gas and metal dust and the ring of formation
The diameter of shape turbulent flow has an impact, so as to influence the effect of metal dust mixing.In the utility model, work as metal dust
When angle is 0 °, 15 ° between the radial direction of carrier gas inlet and the cylinder, it can occur more between gas of carrier gas and metal dust
More effective collision, so as to improve metal dust mixing efficiency.
In the utility model, during the metal dust mixes, gas of carrier gas and the ring of metal dust formation
A shape turbulent flow part, which can be introduced into first cylindrical section, to be carried out after mixed once disperses, then is loaded with metal powder with screw type
The form of the gas of carrier gas at end enters in second cylindrical section；The annular turbulent flow that gas of carrier gas is formed with metal dust it is another
Part, which is then directly entered in second cylindrical section mix, to be disperseed.Such setting, can be beneficial between metal dust occur
Effective collision, so as to improve the mixing efficiency of metal dust.
In metal dust mixing arrangement provided by the utility model, metal dust not of the same race is from being symmetrical arranged or be spaced
The metal dust carrier gas inlet set enters in the cylinder, can further obtain the more preferably scattered effect of metal dust mixing
Fruit.
In metal dust mixing arrangement provided by the utility model, the diameter of the metal dust carrier gas inlet with it is described
Ratio is 1 between the diameter of cylinder：(1-4).The restriction of ratio, can for formed in the cylinder annular turbulent flow provide it is beneficial
Environment, so as to obtain more preferably metal dust mixed effect.
In metal dust mixing arrangement provided by the utility model, the metal dust quantifies module and is used for the gold
Belong to powder carrier gas inlet quantitative delivery metal dust, the carrier gas is passed through module and is used to be passed through to the metal dust carrier gas inlet
Gas of carrier gas.Quantitatively supply gas and powder feeding so as to realize, realize the accurate mixing of metal dust.
In the utility model, the metal dust quantifies module and utilizes ultrasonic vibration quantitative delivery metal dust, can be real
Phenomena such as showing the accurate delivering of metal dust, and avoiding metal dust from reuniting in course of conveying, so as to improve metal powder
The efficiency of end mixing, wherein, the selection of vibration frequency, adjusts selection and the particle diameter and the matched frequency of density size of metal dust
Rate, to obtain optimal ultrasonic vibration effect.
A kind of high throughput metal alloy preparation system provided by the utility model, metal dust pass through the metal dust
After mixing arrangement mixing, quantitative accurate and uniformly mixed metal dust can be obtained, therefore, subsequently metal dust is being swashed
During light melts, it is ensured that the metal alloy prepared and the matching degree designed are higher, so as to further lift height
Accuracy and stability prepared by flux metal alloy.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification made within the principle of utility model, equivalent substitution and improvement etc. should all include the scope of protection of the utility model
Within.
Claims (10)
- A kind of 1. metal dust mixing arrangement, it is characterised in that：It includes hollow cylinder, and metal is opened up on the side wall of cylinder upper end Powder carrier gas inlet, the metal dust mixing arrangement further include what is corresponded and penetrate through with the metal dust carrier gas inlet Metal dust gas-carrier pipeline, the metal dust gas-carrier pipeline is parallel with the tangential direction of the cylinder lateral wall, is loaded with metal powder After the gas of carrier gas at end is by the metal dust gas-carrier pipeline, is entered by the metal dust carrier gas inlet in the cylinder and mixed Close, ratio is 1 between the diameter of the metal dust gas-carrier pipeline and the maximum gauge of the cylinder：(1-4).
- 2. metal dust mixing arrangement as claimed in claim 1, it is characterised in that：The diameter of the metal dust gas-carrier pipeline with The diameter of the metal dust carrier gas inlet is equal.
- 3. metal dust mixing arrangement as claimed in claim 2, it is characterised in that：The length of the metal dust gas-carrier pipeline with The ratio of the maximum gauge of the cylinder is 1:(0.5-2).
- 4. metal dust mixing arrangement as claimed in claim 1, it is characterised in that：The central shaft of the metal dust gas-carrier pipeline Angle is in 0 ° -80 ° between the radial direction of the cylinder.
- 5. metal dust mixing arrangement as claimed in claim 1, it is characterised in that：The metal dust carrier gas inlet is symmetrical arranged Or it is disposed on cylinder lateral wall.
- 6. metal dust mixing arrangement as described in the appended claim 1, it is characterised in that：The metal dust carrier gas inlet is opened in Cylinder lateral wall different height.
- 7. metal dust mixing arrangement as described in the appended claim 1, it is characterised in that：The metal dust mixing arrangement is further Module is quantified including metal dust and carrier gas is passed through module, and the metal dust quantifies module and is used for the metal dust carrier gas Pipeline quantitative delivery metal dust, the carrier gas are passed through module and are used to be passed through gas of carrier gas to the metal dust gas-carrier pipeline.
- 8. metal dust mixing arrangement as recited in claim 7, it is characterised in that：The metal dust quantifies module with ultrasound Mode of vibration to the metal dust gas-carrier pipeline quantitative delivery metal dust, wherein, the delivered dose of the ultrasonic vibration is 2 ~160 μ g/ times, the frequency of the ultrasonic vibration is 3.125Hz~3200Hz.
- 9. metal dust mixing arrangement as recited in claim 7, it is characterised in that：The carrier gas is passed through module via the gold Belong to the powder gas-carrier pipeline delivery of carrier gas gas into the cylinder incessantly.
- A kind of 10. high throughput metal alloy preparation system, it is characterised in that：It includes laser melting forming module and as right will Seek the metal dust mixing arrangement any one of 1-9, the metal dust mixing arrangement is by metal powder after mixing End output carries out the preparation of metal alloy to the laser melting forming module.
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| CN201720824421.5U CN207288885U (en) | 2017-07-10 | 2017-07-10 | Metal dust mixing arrangement and high throughput metal alloy preparation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2820148A1 (en) * | 2019-10-18 | 2021-04-19 | Chumillas Tech S L | MIXER (Machine-translation by Google Translate, not legally binding) |
| WO2022262701A1 (en) * | 2021-06-18 | 2022-12-22 | 北京北方华创微电子装备有限公司 | Semiconductor process equipment and gas mixing and intake device thereof |
-
2017
- 2017-07-10 CN CN201720824421.5U patent/CN207288885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2820148A1 (en) * | 2019-10-18 | 2021-04-19 | Chumillas Tech S L | MIXER (Machine-translation by Google Translate, not legally binding) |
| WO2021074377A1 (en) | 2019-10-18 | 2021-04-22 | Chumillas Technology S.L. | Mixer |
| WO2022262701A1 (en) * | 2021-06-18 | 2022-12-22 | 北京北方华创微电子装备有限公司 | Semiconductor process equipment and gas mixing and intake device thereof |
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