CN205324730U - Active metal selective laser sintering sealing device - Google Patents
Active metal selective laser sintering sealing device Download PDFInfo
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- CN205324730U CN205324730U CN201620062089.9U CN201620062089U CN205324730U CN 205324730 U CN205324730 U CN 205324730U CN 201620062089 U CN201620062089 U CN 201620062089U CN 205324730 U CN205324730 U CN 205324730U
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- active metal
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- selective laser
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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
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Abstract
The utility model relates to an active metal selective laser sintering sealing device, including sealed working bin (1), inert gas pipeline (2), filter (4), control module to and a purifying column (3), fan (5), electrical control valve (6), vacuum pump (7), temperature sensor (8), pressure sensor (9), moisture sensor (10), oxygen partial pressure sensor (11) that are connected with control module respectively, based on the utility model discloses the technical scheme that designs connects the setting, constitutes active metal selective laser sintering sealing device, adopts full new structure design, greatly reduced the time of preparation and the oxygen water content index of metal 3D printer, be favorable to active metal quick forming technique's application.
Description
Technical field
This utility model relates to a kind of active metal selective laser sintering sealing device, belongs to metal 3D printing technique field。
Background technology
Selective laser sintering technology SLM is the laser metal 3D important branch printing field, for quick manufacture personalized, small lot。Moulding material mostly is one-component metal dust, including austenitic stainless steel, nickel-base alloy, aluminium alloy, titanium-base alloy, cochrome and precious metal etc.。Laser beam Fast Sintering metal dust also obtains the molten road of continuous print, it is possible to directly obtain almost arbitrary shape, there is complete metallurgical binding, high-precision intimate densified metal component。Main application fields is Aeronautics and Astronautics, military project, Making mold and medical field。
For in the selective laser sintering process of active metal, water content and oxygen content are the key factors affecting Forming Quality。Selective laser sintering equipment in the market, for the control of water oxygen content, all at 1000ppm(0.1%) more than, mainly there are two kinds of technology modes, the first is to utilize the oxygen content in high-purity argon gas/nitrogen dilution seal operation cabin, causes gas waste and time long；The second is to utilize vacuum pump evacuation, is then injected into argon/nitrogen, after circulation operation several times, reaches 1000ppm oxygen content requirement。Water content is not controlled by both processes, and oxygen content requires relatively low, and waste noble gas etc. is not appropriate for magnesium alloy, titanium alloy, the laser sintering process requirement of aluminium alloy isoreactivity metal。
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of active metal selective laser sintering sealing device, employing brand new designs, greatly reduce time and the oxygen water content index of metal 3D printer, be conducive to the application of active metal rapid shaping technique。
This utility model is in order to solve above-mentioned technical problem by the following technical solutions: this utility model devises a kind of active metal selective laser sintering sealing device, including seal operation storehouse, noble gas conveyance conduit, filter, control module, and the first decontaminating column being connected with control module respectively, blower fan, electric control valve, vacuum pump, temperature sensor, pressure transducer, moisture transducer, oxygen sub sensor；Wherein, noble gas conveyance conduit is connected with seal operation storehouse, and electric control valve is arranged on noble gas conveyance conduit, controls the break-make of noble gas conveyance conduit；Arranging air inlet, gas outlet on first decontaminating column, the air inlet of the first decontaminating column is connected with seal operation storehouse through filter by pipeline, and the gas outlet of the first decontaminating column is connected with seal operation storehouse through blower fan by pipeline；Vacuum pump valve is connected with seal operation storehouse by pipeline；Temperature sensor, pressure transducer, moisture transducer and oxygen sub sensor are arranged in seal operation storehouse。
As a kind of optimal technical scheme of the present utility model: also include the second decontaminating column being connected with described control module, second decontaminating column arranges air inlet, gas outlet, after the air inlet of described first decontaminating column and the air inlet of the second decontaminating column are converged by pipeline, it is connected with described seal operation storehouse through described filter again through pipeline, the gas outlet of described first decontaminating column and the gas outlet of the second decontaminating column are connected with described seal operation storehouse through described blower fan again through pipeline after being converged by pipeline。
As a kind of optimal technical scheme of the present utility model: the scavenging material in described first decontaminating column and the second decontaminating column is copper catalyst and molecular sieve。
As a kind of optimal technical scheme of the present utility model: also including check-valves, described vacuum pump valve is connected with seal operation storehouse through check-valves by pipeline。
As a kind of optimal technical scheme of the present utility model: also including the relief valve being connected with described control module, the valve of relief valve is connected with described seal operation storehouse through pipeline。
As a kind of optimal technical scheme of the present utility model: also include the air relief valve being connected with described control module, described noble gas conveyance conduit points to along noble gas air inlet on the direction in connected seal operation storehouse, set gradually air relief valve, electric control valve。
As a kind of optimal technical scheme of the present utility model: described electric control valve is electromagnetic valve。
As a kind of optimal technical scheme of the present utility model: described blower fan is high speed frequency conversion fan。
As a kind of optimal technical scheme of the present utility model: described noble gas is argon or nitrogen。
A kind of active metal selective laser sintering sealing device described in the utility model adopts above technical scheme compared with prior art, have following technical effect that the active metal selective laser sintering sealing device that this utility model designs, employing brand new designs, greatly reduce time and the oxygen water content index of metal 3D printer, be conducive to the application of active metal rapid shaping technique。
Accompanying drawing explanation
Fig. 1 is the structural representation of the active metal selective laser sintering sealing device of this utility model design；
Fig. 2 is the schematic flow sheet of the sintering air protection method based on active metal selective laser sintering sealing device of this utility model design。
Wherein, 1. seal operation storehouse, 2. noble gas conveyance conduit, 3. the first decontaminating column, 4. filter, 5. blower fan, 6. electric control valve, 7. vacuum pump, 8. temperature sensor, 9. pressure transducer, 10. moisture transducer, 11. oxygen sub sensors, 12. the second decontaminating column, 13. check-valves, 14. relief valves, 15. air relief valve。
Detailed description of the invention
Below in conjunction with Figure of description, detailed description of the invention of the present utility model is described in further detail。
As shown in Figure 1, a kind of active metal selective laser sintering sealing device designed by this utility model is in the middle of actual application, specifically include seal operation storehouse 1, noble gas conveyance conduit 2, filter 4, check-valves 13, control module, and first decontaminating column the 3, second decontaminating column 12 being connected with control module respectively, high speed frequency conversion fan, electromagnetic valve, vacuum pump 7, temperature sensor 8, pressure transducer 9, moisture transducer 10, oxygen sub sensor 11, relief valve 14, air relief valve 15；Wherein, noble gas conveyance conduit 2 is connected with seal operation storehouse 1, and noble gas conveyance conduit 2 points on the direction in connected seal operation storehouse 1 along noble gas air inlet, set gradually air relief valve 15, electromagnetic valve, control the break-make of noble gas conveyance conduit 2, in the middle of practical application, noble gas conveyance conduit 2, for specifying noble gas to seal operation storehouse 1 conveying, specifies noble gas can adopt argon or nitrogen here；First decontaminating column 3 arranges air inlet, gas outlet, second decontaminating column 12 arranges air inlet, gas outlet, after the air inlet of the first decontaminating column 3 and the air inlet of the second decontaminating column 12 are converged by pipeline, it is connected with seal operation storehouse 1 through filter 4 again through pipeline, the gas outlet of the first decontaminating column 3 and the gas outlet of the second decontaminating column 12 are connected with seal operation storehouse 1 through high speed frequency conversion fan again through pipeline after being converged by pipeline；In practical application, the scavenging material in the first decontaminating column 3 and the second decontaminating column 12 is copper catalyst and molecular sieve；Vacuum pump 7 valve is connected with seal operation storehouse 1 through check-valves 13 by pipeline, in practical application, and the final vacuum-970mbar that vacuum pump 7 is selected；Temperature sensor 8, pressure transducer 9, moisture transducer 10 and oxygen sub sensor 11 are arranged in seal operation storehouse 1；In practical application, the range of pressure transducer 9 is :-1000mbar ~ 100mbar；The valve of relief valve 14 is connected with described seal operation storehouse 1 through pipeline。Active metal selective laser sintering sealing device designed by technique scheme, adopts brand new design, greatly reduces time and the oxygen water content index of metal 3D printer, be conducive to the application of active metal rapid shaping technique。
In active metal selective laser sintering sealing device in above-mentioned designed practical application, it is designed with PLC touch screen and is transmitted control instruction for artificial to controlling module, including controlling operation, the function such as oxygen water content shows, the reducing/regenerating of tank pressure stability contorting and decontaminating column；Controlling module can adopt single-chip microcomputer to realize；And in the middle of designed structure, it is applied to air relief valve, relief valve, electromagnetic valve and four kinds of valves of check-valves, wherein, air relief valve is by regulating, inlet pressure is reduced to the outlet pressure of a certain needs, and relies on the energy of medium itself, make the valve that outlet pressure remains stable for automatically；From hydromechanical viewpoint, air relief valve is the restricting element that a local resistance can change, and namely by changing orifice size, makes the kinetic energy of flow velocity and fluid change, causes the different pressure losses, thus reaching the purpose of decompression；Then rely on and control and the adjustment of the system of adjustment, make the fluctuation of downstream pressure and spring force balance each other, make downstream pressure keep constant in certain range of error。Relief valve has another name called relief valve (safetyvalve), the operating pressure energy automatic open close according to system, is generally mounted on the equipment of closed system or pipeline protection security of system。When equipment or manifold pressure exceed relief valve setting pressure, namely automatically turn on pressure release, it is ensured that equipment and pipeline internal medium pressure, under setting pressure, protect equipment and pipeline, it is prevented that occur unexpected。Electromagnetic valve (Electromagneticvalve) is the industrial equipment by Electromagnetic Control, is used to control the automation foundation element of fluid, belongs to executor, however it is not limited to hydraulic pressure, pneumatic；It is used in industrial control system and adjusts the direction of medium, flow, speed and other parameter；Electromagnetic valve can coordinate different circuit to realize intended control, and the precision controlled and motility can both ensure；In simple terms, during energising, in electromagnetic valve, solenoid generation electromagnetic force is mentioned closure member from valve seat, and valve is opened；During power-off, in electromagnetic valve, electromagnetic force disappears, and spring handle closure member is pressed on valve seat, valve closing；Electromagnetic valve has a variety of, and different electromagnetic valves plays a role at the diverse location controlling system, is most commonly used that check valve, relief valve, directional control valve, speed-regulating valve etc.。Check-valves refers to that dependence medium itself flows and automatic open and close flap, is used for the valve preventing medium from flowing backwards。
As shown in Figure 2; practical application structure based on above-mentioned designed active metal selective laser sintering sealing device; this utility model also devises the sintering air protection method based on active metal selective laser sintering sealing device further; including described seal operation storehouse 1 gas displacement method, comprise the steps:
Step 001. controls or keeps vacuum pump 7 to work, and carries out vacuum pumping for seal operation storehouse 1, and enters step 002。
Step 002. is based on the pressure transducer 9 being arranged in seal operation storehouse 1, absolute pressure in detection seal operation storehouse 1, and judge that whether the absolute pressure in seal operation storehouse 1 is less than or equal to preset pressure threshold value 0.01Mpa, it is then enter step 003, otherwise returns step 001。
Step 003. controls vacuum pump 7 and quits work, and enters step 004。
Step 004. specifies noble gas through noble gas conveyance conduit 2 to conveying in seal operation storehouse 1, and enters step 005。
Step 005. is based on the pressure transducer 9 being arranged in seal operation storehouse 1, the pressure in detection seal operation storehouse 1, and judges that in seal operation storehouse 1, whether pressure is equal to atmospheric pressure, is then enter step 006, otherwise returns step 004。
Step 006. is based on the moisture transducer 10 being arranged in seal operation storehouse 1 and oxygen sub sensor 11, oxygen water content in detection seal operation storehouse 1, and judge whether the oxygen water content in seal operation storehouse 1 presets oxygen water content threshold value 500ppm less than first, it is then enter step 008；Otherwise enter step 007。
Step 007. stops conveying in seal operation storehouse 1 and specifies noble gas, and returns step 001。
Step 008. starts or keeps cleaning system to work, namely control or keep described blower fan 5 to work, gas in seal operation storehouse 1 is extracted out by seal operation storehouse 1, described filter 4 is first passed through through pipeline, again respectively after first decontaminating column the 3, second decontaminating column 12, return is delivered in seal operation storehouse 1, is consequently formed circulation, enters back into step 009。
Cleaning system in active metal selective laser sintering sealing device designed by this utility model, by the flue dust in filter 4 gas；And design and have first decontaminating column the 3, second decontaminating column 12, in actual applications, Dynamic matrix control module can control one of them decontaminating column work in the first decontaminating column 3 and the second decontaminating column 12, when this decontaminating column purifies and reaches capacity, it is operated by controlling module control another decontaminating column of startup。
Step 009. is based on the moisture transducer 10 being arranged in seal operation storehouse 1 and oxygen sub sensor 11, oxygen water content in detection seal operation storehouse 1, and judge whether the oxygen water content in seal operation storehouse 1 presets oxygen water content threshold value 10ppm less than second, it is that seal operation storehouse 1 gas displacement method terminates；Otherwise return step 008。
A kind of sintering air protection method based on active metal selective laser sintering sealing device designed by technique scheme; based on this utility model brand-new design structure based on active metal selective laser sintering sealing device; design gas displacement method; greatly reduce time and the oxygen water content index of metal 3D printer, it is possible to quickly effective and safe ground is to active metal laser sintering rapid forming。
Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make a variety of changes under the premise without departing from this utility model objective。
Claims (9)
1. an active metal selective laser sintering sealing device, it is characterized in that: include seal operation storehouse (1), noble gas conveyance conduit (2), filter (4), control module, and the first decontaminating column (3) being connected with control module respectively, blower fan (5), electric control valve (6), vacuum pump (7), temperature sensor (8), pressure transducer (9), moisture transducer (10), oxygen sub sensor (11)；Wherein, noble gas conveyance conduit (2) is connected with seal operation storehouse (1), and electric control valve (6) is arranged on noble gas conveyance conduit (2), controls the break-make of noble gas conveyance conduit (2)；First decontaminating column arranges air inlet, gas outlet on (3), the air inlet of the first decontaminating column (3) is connected with seal operation storehouse (1) through filter (4) by pipeline, and the gas outlet of the first decontaminating column (3) is connected with seal operation storehouse (1) through blower fan (5) by pipeline；Vacuum pump (7) valve is connected with seal operation storehouse (1) by pipeline；Temperature sensor (8), pressure transducer (9), moisture transducer (10) and oxygen sub sensor (11) are arranged in seal operation storehouse (1)。
2. a kind of active metal selective laser sintering sealing device according to claim 1, it is characterized in that: also include the second decontaminating column (12) being connected with described control module, second decontaminating column arranges air inlet on (12), gas outlet, after the air inlet of described first decontaminating column (3) and the air inlet of the second decontaminating column (12) are converged by pipeline, it is connected with described seal operation storehouse (1) through described filter (4) again through pipeline, after the gas outlet of described first decontaminating column (3) and the gas outlet of the second decontaminating column (12) are converged by pipeline, it is connected with described seal operation storehouse (1) through described blower fan (5) again through pipeline。
3. a kind of active metal selective laser sintering sealing device according to claim 2, it is characterised in that: the scavenging material in described first decontaminating column (3) and the second decontaminating column (12) is copper catalyst and molecular sieve。
4. a kind of active metal selective laser sintering sealing device according to claim 2, it is characterised in that: also including check-valves (13), described vacuum pump (7) valve is connected with seal operation storehouse (1) through check-valves (13) by pipeline。
5. a kind of active metal selective laser sintering sealing device according to claim 2, it is characterised in that: also including the relief valve (14) being connected with described control module, the valve of relief valve (14) is connected with described seal operation storehouse (1) through pipeline。
6. a kind of active metal selective laser sintering sealing device according to claim 2, it is characterized in that: also include the air relief valve (15) being connected with described control module, described noble gas conveyance conduit (2) is pointed to along noble gas air inlet on the direction of connected seal operation storehouse (1), set gradually air relief valve (15), electric control valve (6)。
7. a kind of active metal selective laser sintering sealing device according to claim 6, it is characterised in that: described electric control valve (6) is electromagnetic valve。
8. a kind of active metal selective laser sintering sealing device according to claim 2, it is characterised in that: described blower fan (5) is high speed frequency conversion fan。
9. a kind of active metal selective laser sintering sealing device according to any one in claim 2-8, it is characterised in that: described noble gas is argon or nitrogen。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620062089.9U CN205324730U (en) | 2016-01-22 | 2016-01-22 | Active metal selective laser sintering sealing device |
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| CN201620062089.9U CN205324730U (en) | 2016-01-22 | 2016-01-22 | Active metal selective laser sintering sealing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458261A (en) * | 2016-01-22 | 2016-04-06 | 北京隆源自动成型系统有限公司 | Active metal selective laser sintering sealing device and sintering gas protection method |
| CN108068333A (en) * | 2016-11-15 | 2018-05-25 | Eos有限公司电镀光纤系统 | The preparation of delivery unit and three-dimensional structure |
| CN110076992A (en) * | 2018-08-08 | 2019-08-02 | 南京铖联激光科技有限公司 | A kind of self-sealing door machine structure for increasing material manufacturing |
| CN112620088A (en) * | 2020-12-30 | 2021-04-09 | 浙江拓博环保科技有限公司 | Powder conveying and screening circulating method and system |
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2016
- 2016-01-22 CN CN201620062089.9U patent/CN205324730U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458261A (en) * | 2016-01-22 | 2016-04-06 | 北京隆源自动成型系统有限公司 | Active metal selective laser sintering sealing device and sintering gas protection method |
| CN108068333A (en) * | 2016-11-15 | 2018-05-25 | Eos有限公司电镀光纤系统 | The preparation of delivery unit and three-dimensional structure |
| US11420392B2 (en) | 2016-11-15 | 2022-08-23 | Eos Gmbh Electro Optical Systems | Transport unit and preparation of a three-dimensional component |
| CN108068333B (en) * | 2016-11-15 | 2022-10-21 | Eos有限公司电镀光纤系统 | Preparation of transport units and three-dimensional components |
| CN110076992A (en) * | 2018-08-08 | 2019-08-02 | 南京铖联激光科技有限公司 | A kind of self-sealing door machine structure for increasing material manufacturing |
| CN110076992B (en) * | 2018-08-08 | 2023-12-26 | 南京铖联激光科技有限公司 | Self-sealing door mechanism for additive manufacturing |
| CN112620088A (en) * | 2020-12-30 | 2021-04-09 | 浙江拓博环保科技有限公司 | Powder conveying and screening circulating method and system |
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Effective date of registration: 20170927 Address after: 241000 Anhui city of Wuhu province Fanchang Fanchang County Economic Development Zone, standard workshop of two No. 7 Factory Patentee after: Anhui Longyuan Molding Technology Co. Ltd. Address before: 101303 920B, 9 floor, building 52, No. 3 South Street, Beijing, Haidian District, Zhongguancun Patentee before: Beijing Longyuan Automatic Molding System Co., Ltd. |