CN208019413U - A kind of screening plant of 3D printing active metal powder - Google Patents
A kind of screening plant of 3D printing active metal powder Download PDFInfo
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- CN208019413U CN208019413U CN201820448989.6U CN201820448989U CN208019413U CN 208019413 U CN208019413 U CN 208019413U CN 201820448989 U CN201820448989 U CN 201820448989U CN 208019413 U CN208019413 U CN 208019413U
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Abstract
A kind of screening plant of 3D printing active metal powder, belongs to powder sieving processing technology field.Device includes that 1# receives powder tank, automatic sieving frame, air inlet, powder collecting tank, batcher, screening machine etc..Powder collecting tank stands upside down placement on automatic sieving frame, and tank mouth connects batcher, and the lower end of batcher connects screening machine, and screening machine is divided into upper layer and lower layer, is separately connected that 1# receives powder tank and 2# receives powder tank, is respectively equipped with air inlet and exhaust outlet.After device installs, air inlet is closed, exhaust outlet is opened, is vacuumized using vacuum pump, then opens air inlet, exhaust outlet is closed, air inlet is closed after being filled with protective gas 3-4min；Power supply is opened, is fed；Sampling analysis after screening.Advantage is：Oxygen increment to controlling reactive powder plays crucial effect；The screening process process of stringent control powder is not polluted by other impurities, it is ensured that metal powder has higher degree of purity.
Description
Technical field
The utility model belongs to powder sieving processing technology field, the more particularly to sieve of a kind of 3D printing active metal powder
Separating device.
Background technology
3D printing material be 3D printing technique development important substance basis, to a certain extent for, the hair of raw material
Exhibition decides that can 3D printing have wider application.Raw material used in usual 3D printing, i.e. metal powder generally require
Degree of purity height, good sphericity, narrow particle size distribution, oxygen content are low.The high fluidity for only having repeatability, just can guarantee printing
Powder uniformly, be smoothly transported printing molten bath, obtain dense structure, Low Defectivity printed product, realize high-quality 3D beat
Print the optimization of part.
Metal powder application field is different, and required granularity, oxygen content and pattern are different, thus in traditional handicraft
In, it generally requires to handle by the regrading of powder, gets rid of the undesirable powder particle of size, glutinous slag and field trash
Deng could meet the smooth use of metal powder, obtain ideal sintered metal product.Research shows that：For 3D printing technique
Required metal powder is both needed to have preferable that sphericity, particle size range are normally controlled in 15-53 μm and 45-105 μm of two kinds of models
It encloses, and to have alap oxygen content.Thus under above-mentioned requirements, produced by powder by atomization stove for directly logical
Powder, it is necessary to by stringent screening process, the grade metal powder for meeting 3D printing requirement could be obtained.By to shaking both at home and abroad
The investigation of dynamic screening machine finds that equipment construction is fairly simple, and feed inlet and the discharge port of screening machine are open type, charging side
Formula is essentially hand stock.
The feed inlet of existing screening machine is open type with discharge port, thus is connect always with air during powder-processed
It touches, when handling titanium alloy powder using this equipment, it is easy to cause the oxygenation of titanium alloy powder, and the charging of screening plant
Using hand stock, not only labor intensity is higher, and charging rate is unstable, and easily entrains impurity, causes powder pollution existing
There is sifting vibrating sieve during operation, while screening interlayer powder concn is higher in screening process, in processing active metal powder
When it is inflammable and explosive.
Invention content
The purpose of this utility model is to provide a kind of 3D printing screening plants of active metal powder, solve to inflammable
It is explosive, easily by the classification process problem of the more demanding active metal powder of oxygen contamination, clarity.
A kind of screening plant of 3D printing active metal powder, including 1# receive powder tank 1, automatic sieving frame 2, air inlet 3, powder
Last collecting tank 4, batcher 5, screening machine 6, exhaust outlet 7 and 2# receive powder tank 8.Powder collecting tank 4 equipped with metal powder is automatic
It sieves to stand upside down on frame 2 and place, the tank mouth of powder collecting tank 4 connects batcher 5, the charging of the lower end connection screening machine 6 of batcher 5
Mouthful, screening machine 6 divides for upper layer and lower layer, and upper layer is received powder tank 1 by stainless steel flexible hose and 1# and connect, lower layer by stainless steel flexible hose and
2# receives powder tank 8 and connects, and 6 upper layer dust outlet of screening machine is equipped with air inlet 3, and lower layer's dust outlet is equipped with exhaust outlet 7.
The application method of above-mentioned screening plant, specific steps and parameter are as follows：
1, the powder collecting tank 4 equipped with active metal powder is stood upside down on automatic sieving frame 2 first lifting, powder is collected
The tank mouth of tank 4 is connect with the feed inlet ball valve of screening machine 6 using clamping hoop type by stainless steel flexible hose；
2,6 discharge port of screening machine is controlled using ball valve, and connecting 1# by two stainless steel flexible hoses receives powder tank 1 and 2# receipts powder tanks
8；
3, the air inlet 3 for closing screening machine 6, opens simultaneously the exhaust outlet 7 of screening machine 6, using vacuum pump to screening system
It is vacuumized, then opens air inlet 3, close exhaust outlet 7, protective gas is filled with to screening machine 6 is whole by air inlet 3,
Air inlet is closed after inflation 3-4min；
4 while screening electromechanical source and screening machine ultrasonic power are opened, the ultrasonic frequency for adjusting screening machine 6 is C1 moulds
Formula；
5, the feed inlet ball valve of batcher 5 is opened at 1/3-1/2, is uniformly fed；
6, it after sieving, after the completion of being carried out by the watch window observation screening of screening machine 6, unloads 1# and receives 1 He of powder tank
2# receives powder tank 8, is sampled analysis.
The stainless steel flexible hose also can be replaced rubber hose.
The tank mouth of the powder collecting tank 4 is flanged joint with the connection of batcher 5.
Protective gas described in step 3 is argon gas, nitrogen or other inert gases.
The utility model has the advantage of：The screening process process of metal powder always under inert gas shielding atmosphere into
Row, the oxygen increment to controlling reactive powder play crucial effect；Secondly the charging of powder is controlled using ball valve, is realized autonomous
Charging control, it is ensured that the stabilization fed in processing procedure, and it is strong using the work of hand stock in the process to reduce tradition screening
Degree, and strictly the screening process process of control powder is not polluted by other impurities, it is ensured that and metal powder has higher
Degree of purity.
Description of the drawings
Fig. 1 is screening plant schematic diagram.Wherein, 1# receives powder tank 1, automatic sieving frame 2, air inlet 3, powder collecting tank 4, gives
Material machine 5, screening machine 6, exhaust outlet 7,2# receive powder tank 8.
Specific implementation mode
The present apparatus handle 15-53 μm or 45-105 μm particle size range titanium alloy powder when, oxygen increment control algorithm 10ppm with
Under.
A kind of screening plant of 3D printing active metal powder, including 1# receive powder tank 1, automatic sieving frame 2, air inlet 3, powder
Last collecting tank 4, batcher 5, screening machine 6, exhaust outlet 7,2# receive powder tank 8.Powder collecting tank 4 equipped with metal powder is in Automatic sieve
To divide frame 2 to stand upside down to place, the tank mouth of powder collecting tank 4 connects batcher 5, and the lower end of batcher 5 connects the feed inlet of screening machine 6,
Screening machine 6 divides for upper layer and lower layer, and upper layer is received powder tank 1 with 1# by stainless steel flexible hose and connect, and lower layer passes through stainless steel flexible hose and 2#
It receives powder tank 8 to connect, 6 upper layer dust outlet of screening machine is equipped with air inlet 3, and lower layer's dust outlet is equipped with exhaust outlet 7.
The step of when use, is as follows：
1) the titanium alloy metal powder of 10Kg, trade mark Ti-6Al-4V, 0-180 μm of granularity are put into powder collecting tank 4, close
Ball valve is sealed.
2) screening machine 6 is cleared up, then the sieve of 270 mesh is installed.
3) after ensuring that equipment connection is errorless, lifting that powder collecting tank 4 is stood upside down on automatic sieving frame 2 passes through stainless steel
Hose is connect with the feed inlet of screening machine 6；The discharge port of screening machine 6 connects 1# by two stainless steel flexible hoses and receives powder tank 1 and 2#
Receive powder tank 8.
4) vacuumize process is carried out to 6 device of screening machine by vacuum pump, the pumpdown time is about 15min.
5) air inlet 3 is opened, carries out applying argon gas to screening plant, the applying argon gas time is 3-4min.
6) it after applying argon gas, opens feed inlet ball valve opening and is adjusted to feed at 1/3, charging ball valve is adjustable.
7) during screening carries out, the screening situation of powder is observed at any time by watch window, and adjusting appropriate feeds
Speed.
8) after sieving 15min, discharge port ball valve is closed, unloads two receipts powder tanks, sampling carries out grain size analysis and oxygen content
Analysis.
9) in order to improve the effectiveness of classification of powder, 1# is usually received into powder tank 1 (upper layer powder), 2# receives 8 (lower layer's powder of powder tank
End) regrading processing is carried out, continue with the analysis of sampling progress granularity and oxygen content after 15min.
1 powder size of table
Oxygen and nitrogen content before and after 2 powder sieving of table
| Powder classification | O(ppm) | N(ppm) |
| 0-180 microns | 946 | 164 |
| Coarse powder | 944 | 163 |
| Fine powder | 952 | 167 |
Claims (3)
1. a kind of 3D printing screening plant of active metal powder, which is characterized in that receive powder tank (1), automatic sieving frame including 1#
(2), air inlet (3), powder collecting tank (4), batcher (5), screening machine (6), exhaust outlet (7) and 2# receive powder tank (8)；Powder is received
Collect tank (4) handstand on automatic sieving frame (2) to place, the tank mouth connection batcher (5) of powder collecting tank (4), batcher (5)
Lower end connects the feed inlet of screening machine (6), and screening machine (6) is divided into upper layer and lower layer, and powder tank is received in upper layer by stainless steel flexible hose and 1#
(1) it connects, lower layer receives powder tank (8) with 2# by stainless steel flexible hose and connect, and screening machine (6) upper layer dust outlet is equipped with air inlet
(3), lower layer's dust outlet is equipped with exhaust outlet (7).
2. the apparatus according to claim 1, which is characterized in that the stainless steel flexible hose is alternatively rubber hose.
3. the apparatus according to claim 1, which is characterized in that the tank mouth of the powder collecting tank (4) and batcher (5)
It is connected as flanged joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820448989.6U CN208019413U (en) | 2018-03-30 | 2018-03-30 | A kind of screening plant of 3D printing active metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820448989.6U CN208019413U (en) | 2018-03-30 | 2018-03-30 | A kind of screening plant of 3D printing active metal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208019413U true CN208019413U (en) | 2018-10-30 |
Family
ID=63909924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820448989.6U Active CN208019413U (en) | 2018-03-30 | 2018-03-30 | A kind of screening plant of 3D printing active metal powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208019413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315068A (en) * | 2019-08-14 | 2019-10-11 | 北京七弟科技有限公司 | A kind of atmosphere protection metal powder screening plant and method for sieving |
| GB2580723A (en) * | 2019-05-02 | 2020-07-29 | Renishaw Plc | Powder handling apparatus |
| CN112605399A (en) * | 2020-12-18 | 2021-04-06 | 江苏威拉里新材料科技有限公司 | 3D prints collection device for metal powder |
| CN113634486A (en) * | 2021-08-19 | 2021-11-12 | 西安欧中材料科技有限公司 | Vacuum screening equipment |
-
2018
- 2018-03-30 CN CN201820448989.6U patent/CN208019413U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2580723A (en) * | 2019-05-02 | 2020-07-29 | Renishaw Plc | Powder handling apparatus |
| CN110315068A (en) * | 2019-08-14 | 2019-10-11 | 北京七弟科技有限公司 | A kind of atmosphere protection metal powder screening plant and method for sieving |
| CN112605399A (en) * | 2020-12-18 | 2021-04-06 | 江苏威拉里新材料科技有限公司 | 3D prints collection device for metal powder |
| CN113634486A (en) * | 2021-08-19 | 2021-11-12 | 西安欧中材料科技有限公司 | Vacuum screening equipment |
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