CN109622962A - A kind of multichannel Two-way Cycle atmosphere protection system - Google Patents
A kind of multichannel Two-way Cycle atmosphere protection system Download PDFInfo
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- CN109622962A CN109622962A CN201811620857.8A CN201811620857A CN109622962A CN 109622962 A CN109622962 A CN 109622962A CN 201811620857 A CN201811620857 A CN 201811620857A CN 109622962 A CN109622962 A CN 109622962A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/70—Gas flow means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
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- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of multichannel Two-way Cycle atmosphere protection systems; belong to metal material increasing field, can automatically adjust and maintain sealing moulding cavity internal pressure range, further decrease oxygen content in sealing moulding cavity; and not only can be with saving and protection gas, but also the speed of gas displacement can be improved.The present invention includes multi-channel gas displacement access, gas circulation loop, gas reduction access, it vacuumizes access and filtrating smoke dust circuit passes through electrical connection with central control system respectively, for the present invention by forvacuum, multichannel air inlet single channel outlet replaces in cavity air quickly and economically to reduce water oxygen content；Oxygen content is further decreased by designing gas circulation path；Pass through the intracavitary flue dust of design smog dedusting circuit filtration and particulate matter；Oxidant is utilized by design gas reduction circuit cycle；Each process physical amount of automatic inflating device, real-time display is realized by design central control system.
Description
Technical field
The invention belongs to metal material increasing field more particularly to a kind of bicirculating atmosphere protection systems of multichannel.
Background technique
Selective laser fusing (Selective Laser Melting, SLM) technology be in recent years gradually nearly forming with it is fast
The new technology that fast manufacturing field fast development is got up.Selective laser fusing uses the basic principle of Quick-forming, i.e., first exists
The three-dimensional entity model of part is designed on computer, slicing delamination is then carried out to the model by special-purpose software, is obtained each
These data are imported into quickly shaping device by the outline data in section, and equipment will control laser beam according to these outline datas
The metal powder material of each layer of fusing of selectivity, is gradually stacked into 3-dimensional metal part.Theoretically, selective laser fusing uses
30 μm or so of fine focus hot spot rapid melting are set dusty material, can directly obtain almost arbitrary shape, have metallurgical bonding
Function part；In production process, by material and process optimization, relative density can almost reach 100%, and dimensional accuracy can
Reach 0.1 μm, surface roughness can reach 30 ~ 50 μm of Ra.It is difficult to using other available conventional machining process of SLM technique
High-compactness, complicated shape, the high-performance composite materials workpiece of preparation.
Due to the high temperature easily oxidizable of metal material in metal increasing material manufacturing, attritive powder it is flammable and explosive, in laser
It needs to carry out inert gas shielding in selective melting printing metal powder material, most of equipment is all made of argon gas gas at this stage
Atmosphere protection there are many deficiencies and needs improvements, and existing atmosphere protection system mostly uses one-in-and-one-out formula gas passage,
Initial stage gas displacement low efficiency, the time is long, and air consumption is big；Allow forming cavity by way of conveying argon gas protective gas always
Oxygen content in body is minimum to be maintained at tens PPM(protective gas standards), it can not further decrease；It is needed always in print procedure
Gas supplement displacement is carried out, printing cost is increased；In addition, will appear the powder flue dust of vaporization or splashing in print procedure,
If not being subject to filtration, purification, the risk of Fire explosion is had.
Summary of the invention
The present invention provides a kind of multichannel Two-way Cycle atmosphere protection systems, can automatically adjust and maintain sealing moulding chamber
Internal pressure limit further decreases oxygen content in sealing moulding cavity, and not only can be with saving and protection gas, but also gas can be improved
Displaced speed.
In order to achieve the above object, the invention adopts the following technical scheme:
A kind of multichannel Two-way Cycle atmosphere protection system, comprising: multi-channel gas displacement access, gas circulation loop, gas are also
Former access vacuumizes access, filtrating smoke dust circuit, sealing moulding cavity 4, central control system 27, and multi-channel gas displacement is logical
Road, gas circulation loop, gas reduction access, vacuumize access, filtrating smoke dust circuit passes through with central control system 27 respectively
It is electrically connected, oxygen conten analyser 5, water content analysis instrument 6, pressure sensor 7, temperature is installed at the top of sealing moulding cavity 4
Sensor 8, dust sensor 9, overvoltage protection valve 10, oxygen conten analyser 5, water content analysis instrument 6, pressure sensor 7, temperature
Sensor 8, dust sensor 9 are connected with central control system 27 respectively.
In system above, central control system 27 is also connected with solenoid valve 3,11,15,17,20,22,24；
The gas displacement access includes: that protection gas bottle 1 connects 2 one end of pressure reducing valve, 2 other end of pressure reducing valve connection solenoid valve
3 one end, 3 other end of solenoid valve connect 29 one end of gas pipeline, and 29 other end of gas pipeline connects admission line 30,31,32 1
End, 30,31,32 other end of admission line are connect with 4 side lower of sealing moulding cavity respectively, and 34 one end of outlet pipe connects water
Flat three-way magnetic valve 15, the other end connect smoke filter 14, and smoke filter 14 is mounted on 4 side of sealing moulding cavity
Portion, the installation site of smoke filter 14 and the installation site of admission line are located at 4 two sides of sealing moulding cavity；
The gas circulation loop includes: the horizontal three-way magnetic valve 15 of 35 one end connection of gas pipeline, and the other end connects oxygen uptake
Gas tank 23, oxygen uptake gas tank 23 are connect with 36 one end of gas pipeline, and 36 other end of gas pipeline connects 16 one end of extraction fan, pumping
16 other end of fan is connect with solenoid valve 17, and solenoid valve 17 is connect with admission line 30,31,32 respectively, extraction fan 16 and tool
There is the touch screen of human-computer interaction interface to show that machine 28 connects；
The gas reduction access includes: that reduction gas bottle 26 connects 25 one end of pressure reducing valve, and 25 one end of pressure reducing valve connects electromagnetism
Valve 24, solenoid valve 24 connect 37 one end of gas pipeline, and 37 other end of gas pipeline connects solenoid valve 22 1 by oxygen uptake gas tank 23
End, 22 other end of solenoid valve connect gas pipeline 38；
The access that vacuumizes includes: 33 one end of gas piping connection sealing moulding cavity 4, and the other end connects solenoid valve 11,
Solenoid valve 11 connects smoke filter 12, and smoke filter 12 connects vacuum pump 13, and vacuum pump 13 is connected to central control system
27, gas piping 33 and smoke filter 14 are located at the same side.
The filtrating smoke dust circuit includes 39 one end of gas pipeline connection sealing moulding cavity 4, and the other end connects drying
18 one end of device, 18 other end of drier connect 19 one end of extraction fan, and 19 other end of extraction fan connects 20 one end of solenoid valve, electricity
20 other end of magnet valve connects smoke filter 21, and 21 other end of smoke filter connects 40 one end of gas pipeline, gas pipeline 40
The other end connects sealing moulding cavity 4, and extraction fan 19 and the touch screen with human-computer interaction interface show that machine 28 connects.
Protecting the protection gas in gas bottle 1 is inert gas, preferably argon gas.
Restore the gaseous mixture that the also Primordial Qi in gas bottle 26 is hydrogen and argon gas.
Filter core in smoke filter 12,14 is the filter core with physisorptive filter function.
Desiccant in drier 18 is silica-gel desiccant.
The given threshold of overvoltage protection valve 10 is 10mbar.
Horizontal three-way magnetic valve 15 controls wherein two-way on-off by mechanical structure, need to be horizontally mounted, be also coupled to center
Control system 27 is controlled by it another two-way on-off.
The utility model has the advantages that the present invention provides a kind of multichannel Two-way Cycle atmosphere protection system, have compared with the prior art with
Lower advantage:
1, the rapidity of gas displacement: first controlling protection gas outlet pressure by pressure reducing valve, enter from the multiple and different orientation of container, shape
The air of sealing moulding inside cavity is urged to gas outlet discharge at a quick flowing flow field, the method can be rapidly by chamber
Internal water oxygen content drops to 200-500ppm or less；
2, it saving and protection gas: before gas displacement, first opens and vacuumizes access that sealing moulding cavity is evacuated to 30%-50% is true
Then reciprocal of duty cycle carries out logical protection gas again and carries out gas displacement, can not only save the protection gas of 30%-50%, but also gas displacement can be improved
Speed；
3, can automatically adjust and maintain sealing moulding cavity internal pressure range: pressure sensor is accurately anti-by cavity internal pressure
It is fed to central control system, central control system is according to the on-off and pumping of preset process control gas displacement circuit solenoid
The on-off of the solenoid of vacuum loop is internally evacuated by vacuum pump by protecting the internal tonifying Qi of gas, reaches guarantee chamber with this
Interior pressure limit；
4, oxygen content in sealing moulding cavity is further decreased: by opening solenoid valve and pumping wind in gas circulation loop
The intracorporal gas of chamber is pumped into oxygen uptake gas tank by fan, and the oxygen of remaining remnants is reacted with the oxidant in gas tank and is consumed,
Protective gas does not react, and enters sealing metal cavity again through gas pipeline, can be reduced to oxygen content in cavity
Within 10ppm；
5, dust and smog content in cavity is effectively reduced, while further decreasing water content: dust sensor can real-time detection
Dust concentration feeds back to central control system in sealing moulding gas, and central control system opens filtrating smoke dust according to preset program
Circuit solenoid and extraction fan, will be mingled in cavity the gaseous mixture of dust by filter and water aspirator drifting dust and
Water suction, can be down to 10ppm or less for smoke content and water content by this step；
6, the storage trackability of the real-time display and alarm condition of each procedure parameter: the central control system is by central processing
Device, memory and can peripheral PLC circuit composition, it can be achieved that reading the reading and storage and control of analog quantity to each sensor
Make the sequence operation of each solenoid valve, extraction fan, vacuum pump on-off；It is man-machine interface in touch display screen, human-computer interaction is more
Simply, fast.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that multichannel Two-way Cycle atmosphere protection system is melted in selective laser of the invention.
In figure, 1 is protection gas bottle, and 2 be pressure reducing valve, and 3 be solenoid valve, and 4 be sealing moulding cavity, and 5 be oxygen analysis
Instrument, 6 be water content analysis instrument, and 7 be pressure sensor, and 8 be temperature sensor, and 9 be dust sensor, and 10 be overvoltage protection valve,
11 be solenoid valve, and 12 be smoke filter, and 13 be vacuum pump, and 14 be smoke filter, and 15 be horizontal three-way magnetic valve, and 16 be pumping
Air fan, 17 be solenoid valve, and 18 be drier, and 19 be extraction fan, and 20 be solenoid valve, and 21 be smoke filter, and 22 be electromagnetism
Valve, 23 be oxygen uptake gas tank, and 24 be solenoid valve, and 25 be pressure reducing valve, and 26 be reduction gas bottle, and 27 be central control system, and 28 be touching
Panel type display is touched, 29-40 is gas path pipe.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of multichannel Two-way Cycle atmosphere protection system, comprising: multi-channel gas displacement access, gas are recycled back to
Road, gas reduction access vacuumize access, filtrating smoke dust circuit, sealing moulding cavity 4, central control system 27, multichannel gas
Body displacement access, gas circulation loop, gas reduction access, vacuumize access, filtrating smoke dust circuit respectively with center control be
System 27 is equipped with oxygen conten analyser 5, water content analysis instrument 6, pressure sensing at the top of sealing moulding cavity 4 by being electrically connected
Device 7, temperature sensor 8, dust sensor 9, overvoltage protection valve 10, oxygen conten analyser 5, water content analysis instrument 6, pressure sensing
Device 7, temperature sensor 8, dust sensor 9 are connected with central control system 27 respectively.
In system above, central control system 27 is also connected with solenoid valve 3,11,15,17,20,22,24；
The gas displacement access includes: that protection gas bottle 1 connects 2 one end of pressure reducing valve, 2 other end of pressure reducing valve connection solenoid valve
3 one end, 3 other end of solenoid valve connect 29 one end of gas pipeline, and 29 other end of gas pipeline connects admission line 30,31,32 1
End, 30,31,32 other end of admission line are connect with 4 side lower of sealing moulding cavity respectively, and 34 one end of outlet pipe connects water
Flat three-way magnetic valve 15, the other end connect smoke filter 14, and smoke filter 14 is mounted on 4 side of sealing moulding cavity
Portion, the installation site of smoke filter 14 and the installation site of admission line are located at 4 two sides of sealing moulding cavity；
The gas circulation loop includes: the horizontal three-way magnetic valve 15 of 35 one end connection of gas pipeline, and the other end connects oxygen uptake
Gas tank 23, oxygen uptake gas tank 23 are connect with 36 one end of gas pipeline, and 36 other end of gas pipeline connects 16 one end of extraction fan, pumping
16 other end of fan is connect with solenoid valve 17, and solenoid valve 17 is connect with admission line 30,31,32 respectively, extraction fan 16 and tool
There is the touch screen of human-computer interaction interface to show that machine 28 connects；
The gas reduction access includes: that reduction gas bottle 26 connects 25 one end of pressure reducing valve, and 25 one end of pressure reducing valve connects electromagnetism
Valve 24, solenoid valve 24 connect 37 one end of gas pipeline, and 37 other end of gas pipeline connects solenoid valve 22 1 by oxygen uptake gas tank 23
End, 22 other end of solenoid valve connect gas pipeline 38；
The access that vacuumizes includes: 33 one end of gas piping connection sealing moulding cavity 4, and the other end connects solenoid valve 11,
Solenoid valve 11 connects smoke filter 12, and smoke filter 12 connects vacuum pump 13, and vacuum pump 13 is connected to central control system
27, gas piping 33 and smoke filter 14 are located at the same side.
The filtrating smoke dust circuit includes 39 one end of gas pipeline connection sealing moulding cavity 4, and the other end connects drying
18 one end of device, 18 other end of drier connect 19 one end of extraction fan, and 19 other end of extraction fan connects 20 one end of solenoid valve, electricity
20 other end of magnet valve connects smoke filter 21, and 21 other end of smoke filter connects 40 one end of gas pipeline, gas pipeline 40
The other end connects sealing moulding cavity 4, and extraction fan 19 and the touch screen with human-computer interaction interface show that machine 28 connects.
Protecting the protection gas in gas bottle 1 is inert gas, preferably argon gas.
Restore the gaseous mixture that the also Primordial Qi in gas bottle 26 is hydrogen and argon gas.
Filter core in smoke filter 12,14 is the filter core with physisorptive filter function.
Desiccant in drier 18 is silica-gel desiccant.
The given threshold of overvoltage protection valve 10 is 10mbar.
Horizontal three-way magnetic valve 15 controls wherein two-way on-off by mechanical structure, need to be horizontally mounted, be also coupled to center
Control system 27 is controlled by it another two-way on-off.
Form door on sealing moulding cavity 4 is closed, vacuumizing function, central control system are opened in touch display screen 28
27, which receive instruction, closes all solenoid valves and fan, only opens solenoid valve 11 and vacuum pump 13, vacuum pump 13 is to sealing moulding
Chamber 4 is vacuumized, and when vacuum degree reaches 30%-50%, closing vacuumizing function, solenoid valve 11 and vacuum pump 13 are closed；Hereafter,
Gas displacement function is opened in touch display screen 28, central control system 27 receives instruction, opens solenoid valve 3 and level three
A, b two of three-way electromagnetic valve 15 leads to (two clearance of a, c is closed), 2 subtabulation pressure of Manual adjustment pressure reducing valve, makes to protect gas outlet pressure
100MPa, protection gas enter sealing moulding cavity 4 via gas pipeline 29,30,31,32, push air in cavity and pass through flue dust
Filter 14, gas pipeline 34, horizontal three-way magnetic valve 15 are discharged, when oxygen content reaches 200-500ppm hereinafter, closing gas
Permutation function, solenoid valve 3 and horizontal three-way magnetic valve 15 are closed；Hereafter, the metal powder of less demanding to oxygen content can be opened
Begin to print, needs to open filtrating smoke dust function at this time, central control system receives instruction, opens solenoid valve 20 and extraction fan
19, by the circuit design of inside cavity, extraction fan 19 is formed above the metal powder completed and below galvanometer light-emitting window
Gas field is flowed, is constantly extracted the gas containing particulate matters such as metallic fume, splashings generated in print procedure out, by flue dust
Filter 21 absorbs and filter, 18 absorbent drying of drier, then is passed through to be formed in cavity and recycles gas circuit in dedusting；In the process,
It leaks since the leakproofness deficiency of sealing moulding cavity 5 will lead to protection gas, it is therefore desirable to tonifying Qi constantly be carried out to it and maintained
Pressure limit, central control system can automatically turn on solenoid valve 3, solenoid valve 11 and vacuum pump 13, chamber according to preset program
Interior pressure is less than preset range, carries out tonifying Qi, and cavity pressure is greater than preset range, is evacuated.
It when more demanding to oxygen content, after gas displacement function, needs to carry out gas circulatory function: be shown touching
Gas circulatory function is selected on screen 28, after central control system 27 receives instruction, closes other solenoid valves and extraction fan, only
Opens solenoid valve 17, horizontal three-way magnetic valve 15 a, c two lead to (two clearance of a, b is closed) and extraction fan 16, gas passes through in cavity
By smoke filter 14, pipeline 34, three-way magnetic valve 15a, c mouthfuls horizontal, into oxygen uptake gas tank 23, oxygen and oxidant therein
Reactive absorption is carried out, remaining protective gas enters through piping 36, solenoid valve 17 and a plurality of gas pipeline 30,31,32 to be sealed to
Cavity 4 completes gas circulation, oxygen content is further decreased.
After system runs a period of time, need to restore the oxidant in oxygen uptake gas tank 23: in touch display screen
Gas reduction function is selected on 28, after central control system 27 receives instruction, is closed gas solenoid valve and extraction fan, is opened
Solenoid valve 22,24,26 subtabulation pressure of Manual adjustment pressure reducing valve make also Primordial Qi outlet pressure 5MPa, also Primordial Qi are allowed to enter oxygen uptake
Gas tank 23 reacts with oxidant, is restored, and reaction product is discharged via solenoid valve 22 and gas pipeline 38.
The foregoing is merely the preferable specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and sends out
Bright design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of multichannel Two-way Cycle atmosphere protection system characterized by comprising multi-channel gas displacement access, gas follow
Loop back path, gas reduction access vacuumize access, filtrating smoke dust circuit, sealing moulding cavity (4), central control system (27),
Multi-channel gas displacement access, gas reduction access, vacuumizes access, filtrating smoke dust circuit respectively at gas circulation loop
Entreat control system (27) by electrical connection, sealing moulding cavity (4) top is equipped with oxygen conten analyser (5), water content point
Analyzer (6), pressure sensor (7), temperature sensor (8), dust sensor (9), overvoltage protection valve (10), oxygen conten analyser
(5), water content analysis instrument (6), pressure sensor (7), temperature sensor (8), dust sensor (9) are with center control respectively
System (27) is connected.
2. multichannel Two-way Cycle atmosphere protection system according to claim 1, which is characterized in that the gas displacement is logical
Road includes: protection gas bottle (1) connection pressure reducing valve (2) one end, and pressure reducing valve (2) other end connects solenoid valve (3) one end, solenoid valve
(3) other end connects gas pipeline (29) one end, and gas pipeline (29) other end connects admission line (30), (31), (32) one
End, admission line (30), (31), (32) other end are connect with sealing moulding cavity (4) side lower respectively, outlet pipe (34)
One end connects horizontal three-way magnetic valve (15), and the other end connects smoke filter (14), and smoke filter (14) is mounted on sealing
Molding cavity (4) side surface upper part, the installation site of smoke filter (14) and the installation site of admission line are located at sealing
Molding cavity (4) two sides.
3. multichannel Two-way Cycle atmosphere protection system according to claim 1, which is characterized in that the gas is recycled back to
Road includes: that gas pipeline (35) one end connects horizontal three-way magnetic valve (15), and the other end connects oxygen uptake gas tank (23), oxygen uptake gas tank
(23) it is connect with gas pipeline (36) one end, gas pipeline (36) other end connects extraction fan (16) one end, extraction fan
(16) other end is connect with solenoid valve (17), and solenoid valve (17) is connect with admission line (30), (31), (32) respectively.
4. multichannel Two-way Cycle atmosphere protection system according to claim 1, which is characterized in that the gas reduction is logical
Road includes: reduction gas bottle (26) connection pressure reducing valve (25) one end, and pressure reducing valve (25) one end connects solenoid valve (24), solenoid valve
(24) gas pipeline (37) one end is connected, gas pipeline (37) other end connects solenoid valve (22) one by oxygen uptake gas tank (23)
End, solenoid valve (22) other end connect gas pipeline (38).
5. multichannel Two-way Cycle atmosphere protection system according to claim 1, which is characterized in that described vacuumizes access
It include: gas piping (33) one end connection sealing moulding cavity (4), the other end connects solenoid valve (11), solenoid valve (11) connection
Smoke filter (12), smoke filter (12) connect vacuum pump (13), and vacuum pump (13) is connected to central control system (27),
Gas piping (33) and smoke filter (14) are located at the same side.
6. multichannel Two-way Cycle atmosphere protection system according to claim 1, which is characterized in that the filtrating smoke dust returns
Road includes gas pipeline (39) one end connection sealing moulding cavity (4), and the other end connects drier (18) one end, drier (18)
The other end connects extraction fan (19) one end, and extraction fan (19) other end connects solenoid valve (20) one end, and solenoid valve (20) is another
One end connects smoke filter (21), and smoke filter (21) other end connects gas pipeline (40) one end, gas pipeline (40)
The other end connects sealing moulding cavity (4).
7. multichannel Two-way Cycle atmosphere protection system according to claim 2, which is characterized in that in protection gas bottle (1)
Protection gas be inert gas；Horizontal three-way magnetic valve (15) controls wherein two-way on-off by mechanical structure, is horizontally mounted, horizontal
Three-way magnetic valve (15) is connected to central control system (27) and controls another two-way on-off.
8. multichannel Two-way Cycle atmosphere protection system according to claim 4, which is characterized in that in reduction gas bottle (26)
Also Primordial Qi be hydrogen and argon gas gaseous mixture.
9. multichannel Two-way Cycle atmosphere protection system according to claim 2 or 5, which is characterized in that smoke filter
(12) filter core in (14) is the filter core with physisorptive filter function.
10. multichannel Two-way Cycle atmosphere protection system according to claim 6, which is characterized in that in drier (18)
Desiccant is silica-gel desiccant.
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| CN201811620857.8A CN109622962B (en) | 2018-12-28 | 2018-12-28 | Multichannel dual cycle atmosphere protection system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014152A (en) * | 2019-04-15 | 2019-07-16 | 上海理工大学 | Laminar-flow type adjustable air duct |
| CN110181055A (en) * | 2019-07-02 | 2019-08-30 | 佛山科学技术学院 | A kind of metal 3D printer intelligence deoxygenation circulation purifying method and equipment |
| CN110777242A (en) * | 2019-11-08 | 2020-02-11 | 燕山大学 | Oxidation-reduction protection device of stainless steel tube heat treatment furnace |
| CN111097910A (en) * | 2020-02-06 | 2020-05-05 | 高尚孜 | AI-based environment control system and control method |
| CN115213438A (en) * | 2022-07-01 | 2022-10-21 | 东莞理工学院 | Double-gas-path circulating purification device for laser powder bed melting additive manufacturing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353832A (en) * | 2014-10-24 | 2015-02-18 | 华南理工大学 | Method and equipment of sealed chamber atmosphere deoxygenization and circulating purification for metal 3D printer |
| JP2016006215A (en) * | 2014-06-20 | 2016-01-14 | 株式会社ソディック | Lamination molding device |
| CN105728726A (en) * | 2016-04-20 | 2016-07-06 | 华南理工大学 | Device and method for stabilizing air pressure in sealed molding chamber for 3D printing of metal |
| CN107008900A (en) * | 2015-09-25 | 2017-08-04 | Slm 方案集团股份公司 | Apparatus and method for producing 3 D workpiece |
| CN209918886U (en) * | 2018-12-28 | 2020-01-10 | 南京航空航天大学 | Multichannel dual cycle atmosphere protection system |
-
2018
- 2018-12-28 CN CN201811620857.8A patent/CN109622962B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016006215A (en) * | 2014-06-20 | 2016-01-14 | 株式会社ソディック | Lamination molding device |
| CN104353832A (en) * | 2014-10-24 | 2015-02-18 | 华南理工大学 | Method and equipment of sealed chamber atmosphere deoxygenization and circulating purification for metal 3D printer |
| CN107008900A (en) * | 2015-09-25 | 2017-08-04 | Slm 方案集团股份公司 | Apparatus and method for producing 3 D workpiece |
| CN105728726A (en) * | 2016-04-20 | 2016-07-06 | 华南理工大学 | Device and method for stabilizing air pressure in sealed molding chamber for 3D printing of metal |
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