CN108297244A - A kind of new ceramics molding equipment based on 3D printing technique - Google Patents
A kind of new ceramics molding equipment based on 3D printing technique Download PDFInfo
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- CN108297244A CN108297244A CN201810158365.5A CN201810158365A CN108297244A CN 108297244 A CN108297244 A CN 108297244A CN 201810158365 A CN201810158365 A CN 201810158365A CN 108297244 A CN108297244 A CN 108297244A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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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
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Abstract
The present invention relates to 3D printing technique fields, more particularly to a kind of new ceramics molding equipment based on 3D printing technique, including rack, master controller, three-dimensional motion module, feeding device and extrusion device, feeding device includes storage tank, piston, cylinder, air compressor, conveying pipeline, solenoid valve, pressure regulator valve and reversal valve, and extrusion device includes stepper motor II, screw rod, shaft coupling, screw jacket and nozzle.The present invention can be applied to Ceramic Composite class material, the printing shaping of the construction materials such as cement, reduce cost of labor, realize the high-precision printing of 3D ceramics printing, 3D printing technique, ceramics molding, electromechanical integration and 3 dimension module designing techniques are blended, the automatic moulding of traditional ceramics is realized in success, the abnormal shape that traditional ceramics billet withdrawing technology is difficult to realize may be implemented, personalized customization can be carried out according to customer demand, can also be used widely the breakthrough realized in some new moldings in cultural creative field.
Description
Technical field
The present invention relates to 3D printing technique fields, more particularly to a kind of new ceramics based on 3D printing technique
Molding equipment.
Background technology
Ceramic material has many advantages, such as high intensity, high rigidity, high temperature resistant, corrosion-resistant as a kind of important structural material,
No matter all it is widely used in traditional industry field or emerging high-technology field；However ceramics molding is to produce
The key of journey, mainly forming method has at present：Extrusion forming, injection forming, dry-pressing formed, gel casting forming etc., these types
Method is all to prepare corresponding mold according to the requirement of ceramic product first, if design or element structure change, needs weight
Freshly prepared mold, the production cycle is long, and cost of manufacture is high, and the shape type made is limited, and complicated device can not use
Traditional molding methods, and easy to produce waste of material when making；However, with the rapid development of industry, these traditional moldings
Method cannot meet the requirement in certain fields, and 3D printing molding is a kind of novel forming method of fast development in recent years,
This method main advantage is shown：The accuracy of manufacture is high, with short production cycle, that complicated shape manufacture, personalization level may be implemented is high
Deng.
So far, layer separated growth technology (LOM), melt deposition mainly make applied to the technology of ceramic 3D printing
Type (FDM), shaped deposition molding (SDM), inkjet printing molding (IJM), stereolithography (SLA), precinct laser sintering (SLS)；
But fused deposition modeling precision is low, vertical direction intensity is small, and shaping speed is slow, and the prices of raw materials are expensive；Shaped deposition is molded
It needs to make and support, the support of last fine structure is difficult removal；Ink-jet printing and precinct laser sintering prepare ceramic material
There are spacing between ceramic powder particle is big, blank density is low, can not be densified in high temperature sintering, and ceramic performance is relatively low；
Stereolithography prepares that ceramic material cost is higher, and selectable range is small, and moulding material has toxicity, the nothings such as equipment price costliness
Method is used widely.
In order to overcome the shortcomings of in the defects of traditional ceramics preparation method and existing ceramic 3D printing technique, at present
It is that the Chinese patent literature of CN205630921 discloses a kind of output device for ceramic 3D printer, the dress to have notification number
It sets and can be applied to ceramic composite, reduce cost of labor, but the device has the following defects：(1) storage tank amount of storage
It is limited, larger product cannot be met or worked long hours；(2) directly barrel is mounted in 3D printer kinematic system, is increased
The load of 3D printer, influences its printing precision；
Notification number is that the Chinese patent literature of CN205889473 discloses a kind of desktop type 3D printing ceramics of air-electricity linkage
Equipment, which mainly controls feeding system by vacuum pressed and conveys pottery mud raw material to head device, but its vacuum adds
Pressure method can cause air pressure in storage tank unstable, to keep extruded velocity uneven, influence Forming Quality.
Invention content
(1) the technical issues of solving
Present invention aims to overcome that the shortcomings that above-mentioned prior art, provide a kind of novel ceramic based on 3D printing technique
Porcelain molding equipment has the advantages that simple in structure, easy to operation, formed precision is with high accuracy, can be with the device of preparation structure complexity.
(2) technical solution
A kind of new ceramics molding equipment based on 3D printing technique, including rack, three-dimensional motion module, motion control system
System, feeding device, extrusion device and working plate, the rack are fixed up by L-type chamfered groove and T-nut, and utilize aluminium profiles
Material builds X, Y, Z axis holder；The three-dimensional motion module is mainly by line rail, stepper motor, motor cabinet, shaft coupling, limit
Switch, belt, belt pulley, sliding block and lead screw composition, the line rail utilize the rack-mounted X, Y, Z axis of T-nut
In holder, the stepper motor I is mounted on by screw on motor cabinet, and the motor cabinet is fixed on the rack using T-type screw, institute
It states lead screw to connect with stepper motor I by shaft coupling, the sliding block is installed together with lead screw, and the limit switch passes through T-type
Nut is fixed on the rack, and the belt is fixed on by belt pulley in X, Y, Z axis, and the belt is connected by screw and sliding block
It connects, the belt pulley is connected with belt pulley pedestal；The kinetic control system mainly uses the main control of model mega2560
Device and touch display screen；The feeding device is mainly by storage tank, piston, cylinder, air compressor, conveying pipeline, solenoid valve, tune
Pressure valve and reversal valve composition, the bottom of the storage tank processes camber, and bottom centre position is provided with discharge port, described
Piston is connect using screw with cylinder, and the cylinder is mounted on the sealing cover of storage tank, and two holes are arranged on the sealing cover,
And it is divided into air admission hole and gas vent, the air admission hole is connect by pneumatic joint with solenoid valve, reversal valve and pressure regulator valve, the row
Air bleeding valve is set on stomata, and the cylinder is connect by tracheae with air compressor；The extrusion device include stepper motor II,
Screw rod, shaft coupling, screw jacket and nozzle, the stepper motor II are connect by shaft coupling with screw rod, the screw rod installation
Inside screw jacket, feed inlet is set, the bottom end of the screw jacket is equipped with extrusion, the nozzle on the screw jacket
At extrusion.
Preferably, the rack is used as main support material, not only light weight using aluminium section bar, and hardness height, intensity are big,
X, Y, Z axis uses the line rail kind of drive, so that print procedure is steadily carried out, helps to improve printing precision.
Preferably, the storage tank uses large capacity stainless steel storage tank, reduces and replaces printed material frequency.
Preferably, the air admission hole is equipped with three connection for breather pipe, and is divided into an air pressure input terminal, two air pressure outputs
End, the air pressure output end are respectively acting on the top and piston of cylinder；The reversal valve is set as three-way diverter valve, and is divided into
One reversal valve input terminal, two reversal valve output ends, the reversal valve input terminal are connect by gas-tpe fitting with pressure regulator valve, and one
A reversal valve output end is connect by gas-tpe fitting with air pressure input terminal, another reversal valve output end directly acts on cylinder
Bottom；The solenoid valve is set as two three-way electromagnetic valves, and is divided into solenoid valve input terminal and solenoid valve output end, the solenoid valve input
End is connect with air compressor, and the solenoid valve output end is connect with pressure regulator valve, and the effect of wherein pressure regulator valve is to adjust feed system
The size of system air pressure, commutation valve action are to change pressure directions, adjust Telescopic-cylinder, and electromagnetism valve action is control feeding system gas
The break-make in source.
Preferably, the screw rod uses single coil configuration, and the flight pitch on the screw rod is 16mm, depth of thread 4mm.
Preferably, it is provided with sealing ring on the upside of the screw jacket.
Preferably, the intake port is 16mm, and the nozzle diameter is 1-3mm.
(3) advantageous effect
A kind of new ceramics molding equipment based on 3D printing technique provided by the invention can be applied to Ceramic Composite class
Material, the printing shaping of the construction materials such as cement reduce cost of labor, realize the high-precision printing of 3D ceramics printing, advantage
It is as follows：
(1) 3D printing technique, ceramics molding, electromechanical integration and 3 dimension module designing techniques are blended, is successfully realized
The abnormal shape that traditional ceramics billet withdrawing technology is difficult to realize may be implemented in the automatic moulding of traditional ceramics, compared with gypsum slurry molding,
Gypsum mold making can be avoided, while fabrication cycle is short with straight forming, it is personalized fixed to be carried out according to customer demand
System, and cost of manufacture is relatively low, can also be used widely the breakthrough realized in some new moldings in cultural creative field.
(2) compared with the existing technology in laser sintered and superhigh temperature powder melts technology for, the nothing in print procedure
Protective gas is needed, the point during big one can also be avoided to be sintered, stress concentration is caused to lead to ceramic component printing failure, but
To being sintered again after ceramic component printing shaping, and device structure and technical process are relatively simple, convenient for streamlined production and
Low energy consumption.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention, protects some embodiments, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of feeding device of the present invention；
Fig. 3 is the structural schematic diagram of extrusion device of the present invention；
In attached drawing, parts list represented by the reference numerals are as follows：
1- racks, 2- master controllers, 3- feeding devices, 4- line rails, 5- belt pulleys, 6- working plates, 7- belt pulley pedestals,
8- belts, 9- extrusion devices, 10- extrusion device pedestals, 11- sliding blocks, 12- limit switches, 13- stepper motors I, 14- lead screws,
15- air bleeding valves, tri- connection for breather pipe of 16-, 17- reversal valves, 18- pressure regulator valves, 19- solenoid valves, 20- air compressors, 21- gas
Cylinder, 22- pistons, 23- storage tanks, 24- sealing covers, 25- screw jackets, 26- stepper motors II, 27- shaft couplings, 28- copper posts,
29- sealing rings, 30- screw rods, 31- feed inlets, 32- nozzles.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of new ceramics molding equipment based on 3D printing technique, including rack 1, three-dimensional motion mould
Group, feeding device 3, extrusion device 9, working plate 6 and master controller 2, rack 1 are mainly erected using aluminium section bar come knot
Structure is simply easily installed, and light weight, intensity are high, can effectively improve print quality；Three-dimensional motion module includes X-axis guide rail, Y
Axis rail, Z axis guide rail and limit switch 12 form, and X-axis guide rail is mainly by 4, one, the single line rail limit switch of sliding block 11, one
12,5, stepper motors I 13 of a root skin belt wheel and an extrusion device pedestal 10 form, and line rail 4 is screwed in X-axis
In rack 1,11 profit of sliding block is screwed on line rail 4, and 8 one end of belt is connect using belt pulley 5 with motor, and one end utilizes skin
Belt wheel 5 is fixed in rack 1, and belt 8 is fixed up using screw and extrusion device pedestal 10, and extrusion device 9 is solid using screw
It is scheduled on extrusion device pedestal 10,12 profit of limit switch is screwed in one end of X-axis；Y-axis guide rail is mainly by both threads rail
4, two sliding blocks, 11, stepper motors I 13,8, two belt pulleys 5 of a root skin band and a belt pulley pedestal 7 form, line rail 4
Profit is screwed in Y-axis guide rail, and 11 profit of sliding block is screwed on line rail 4, and 6 profit of working plate is screwed Y-axis
On guide rail, 5 one end of belt pulley is connect using belt pulley 5 with stepper motor 13, and one end is connected using belt pulley 5 and belt pulley pedestal 7
It connects, belt 8 is connect using screw with working plate 6；Z axis guide rail mainly by 4, two, both threads rail lead screw 14, two sliding block 11,
Two stepper motors I 13, shaft coupling 27 and a limit switch 12 form, and 4 profit of both threads rail is screwed in Z axis rack 1
On, two 11 profits of sliding block are screwed on line rail 4, and two lead screws 14 pass through sliding block 11 to utilize shaft coupling 27 and stepper motor
I 13 connections, X-axis guide rail profit are screwed on two sliding blocks 11, limit switch 12 is fixed on Z axis guide rail lower end；Master control
2 profit of device processed is screwed in the upper end of rack 1, mainly controls kinematic system, extrusion system and feeding system.
As shown in Fig. 2, feeding device 3 mainly by stainless steel storage tank 23, storage tank sealing cover 24, cylinder 21, piston 22,
Air compressor 20, solenoid valve 19, gas-tpe fitting, pressure regulator valve 18 and reversal valve 17 form, stainless steel storage tank 23 and piston 22
Precision-fit, stainless steel storage tank 23 are all made of circular arc type with 22 bottom of piston, and in 23 bottom interposition of stainless steel storage tank
Install 4 points of screw hole seat discharge holes, three threaded holes be set on storage tank sealing cover 24, respectively air admission hole, threaded hole and
Venthole；Cylinder 21 is fixed on by threaded hole on storage tank sealing cover 24, air bleeding valve 15 on venthole, when stainless steel storage tank
When pressure reaches a certain range in 23, air bleeding valve 15 is vented automatically, three connection for breather pipe 16 is arranged on air admission hole, an air pressure is defeated
Enter end, two air pressure output ends, two air pressure output ends are respectively acting on piston 22 and 21 top of cylinder；Reversal valve 17 is set as three
Logical reversal valve, and it is divided into a reversal valve input terminal, two reversal valve output ends, reversal valve input terminal passes through gas-tpe fitting and tune
Pressure valve 18 connects, and a reversal valve output end is connect by gas-tpe fitting with air pressure input terminal, another reversal valve output end is straight
Connect the bottom for acting on cylinder 21；Solenoid valve 19 is set as two three-way electromagnetic valves, and is divided into solenoid valve input terminal and solenoid valve output end,
Solenoid valve input terminal is connect with air compressor 20, and solenoid valve output end is connect with pressure regulator valve 18.
As shown in figure 3, extrusion device 9 is mainly by screw jacket 25, screw rod 30, nozzle 32, shaft coupling 27 and sealing ring 29,
Screw jacket 25 and screw rod 30 are all made of abrasion-proof stainless steel material, and 30 upper end of screw rod is connected by shaft coupling 27 and stepper motor II 26
It connects, screw jacket 25 is fixed together using four copper posts 28 with stepper motor 13, to prevent printed material in print procedure
It overflows, sealing ring 29 is set above screw rod 30 with screw jacket 25 and is sealed, extrusion is set below screw jacket 25,
Discharge port uses 3 points of internal thread forms, and nozzle 32 is using external screw thread nozzle 32, together with the screw-internal thread fit of extrusion, spray
A diameter of 1~3mm of mouth 32, according to different materials, different 32 diameters of model exchangeable nozzle.
The course of work of the present invention designs the 3D models of needs first with modeling software, and utilizes Slice Software pair
Model is sliced, and carries out leveling to 3D printer, begins preparing for printing after software and hardware is ready to, the ceramics that will have been configured
Material is put into stainless steel storage tank 23, and storage tank sealing cover 24 is used in combination to seal, and is opened air compressor 20 at this time and is switched,
The solenoid valve 19 in feeding device 3 is controlled using master controller 2 to work, after solenoid valve 19 is connected, air pressure passes through reversal valve 17
Piston 22 is acted on pressure regulator valve 18, reversal valve 17 determines that the operative orientation of piston 22, the decision of pressure regulator valve 18 act on piston 22
The size of pressure acts on the pressure size of printed material, pressure size determines the extruded velocity of printed material, in pressure
Under effect, printed material is delivered to printing equipment by piston 22, at this point, stepper motor II 26 starts that screw rod 30 is driven to work, spiral shell
Printed material by 32 extrusion molding of nozzle, is obtained into parison by the rotation of bar 30, and the size of 32 diameter of nozzle is determined into parison
It the time-write interval of wall thickness and entire green body, can be with by adjusting parameters such as 32 diameters of pressure, II 26 rotating speed of stepper motor and nozzle
Blank forming quality is controlled, secondly the performance of printed material also has a significant impact to Forming Quality, is finally sintered green body
Processing, finally obtains ceramic component.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Specific features described in conjunction with this embodiment or example, structure, material live at least one implementation that feature is contained in the present invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, also do not limit the specific implementation mode that the invention is only.Obviously, according to the content of this specification, can make
Many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the original of the present invention
Reason and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only authorized
The limitation of sharp claim and its full scope and equivalent.
Claims (7)
1. a kind of new ceramics molding equipment based on 3D printing technique, including rack (1), three-dimensional motion module, motion control
System, feeding device (3), extrusion device (9) and working plate (6), which is characterized in that the rack (1) is by L-type chamfered groove and T
Type nut is fixed up, and builds X, Y, Z axis holder using aluminium section bar；The three-dimensional motion module mainly by line rail (4),
Stepper motor I (13), motor cabinet, shaft coupling (27), limit switch (12), belt (8), belt pulley (5), sliding block (11) and silk
Bar (14) forms, and the line rail (4) is mounted on using T-nut in the X, Y, Z axis holder in rack (10), the stepping electricity
Machine I (13) is mounted on by screw on motor cabinet, and the motor cabinet is fixed on using T-type screw in rack (1), the lead screw (14)
It is connect with stepper motor I (13) by shaft coupling (27), the sliding block (11) is installed together with lead screw (14), and the limit is opened
It closes (12) to be fixed in rack (1) by T-nut, the belt (8) is fixed on by belt pulley (5) in X, Y, Z axis, described
Belt (8) is connect by screw with sliding block (11), and the belt pulley (5) is connected with belt pulley pedestal (7)；The motion control system
System mainly uses the master controller (2) and touch display screen of model mega2560；The feeding device is mainly by storage tank
(23), piston (22), cylinder (21), air compressor (20), conveying pipeline, solenoid valve (19), pressure regulator valve (18) and reversal valve
(17) it forms, the bottom of the storage tank (23) processes camber, and bottom centre position is provided with discharge port, the piston
(22) it is connect with cylinder (21) using screw, the cylinder (21) is mounted on the sealing cover (24) of storage tank (23), described close
Cover and two holes be set on (24), and be divided into air admission hole and gas vent, the air admission hole by pneumatic joint and solenoid valve (19),
Reversal valve (17) and pressure regulator valve (18) connection, setting air bleeding valve (15) on the gas vent, the cylinder (21) by tracheae with
Air compressor (20) connects；The extrusion device (9) includes stepper motor II (26), screw rod (30), shaft coupling (27), screw rod
Housing (25) and nozzle (32), the stepper motor II (26) are connect by shaft coupling (27) with screw rod (30), the screw rod
(30) it is mounted on the inside of screw jacket (25), feed inlet (31), the screw jacket are set on the screw jacket (25)
(25) bottom end is equipped with extrusion, and the nozzle (32) is mounted at extrusion.
2. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Rack (1) is using aluminium section bar as main support material.
3. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Storage tank (23) uses the storage tank of large capacity stainless steel.
4. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Air admission hole is equipped with three connection for breather pipe, and is divided into an air pressure input terminal, two air pressure output ends, the air pressure output end difference
It acts on the top and piston (22) of cylinder (21)；The reversal valve (17) is set as three-way diverter valve, and is divided into a commutation
Valve input terminal, two reversal valve output ends, the reversal valve input terminal are connect by gas-tpe fitting with pressure regulator valve, a reversal valve
Output end is connect by gas-tpe fitting with air pressure input terminal, another reversal valve output end directly acts on the bottom of cylinder (21)
Portion；The solenoid valve (19) is set as two three-way electromagnetic valves, and is divided into solenoid valve input terminal and solenoid valve output end, and the solenoid valve is defeated
Enter end to connect with air compressor (20), the solenoid valve output end is connect with pressure regulator valve (18).
5. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Screw rod (30) uses single coil configuration, and the flight pitch on the screw rod (30) is 16mm, depth of thread 4mm.
6. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Screw jacket is provided with sealing ring on the upside of (25).
7. a kind of new ceramics molding equipment based on 3D printing technique according to claim 1, which is characterized in that described
Feed inlet (31) a diameter of 16mm；A diameter of 1~the 3mm of the nozzle (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810158365.5A CN108297244A (en) | 2018-02-26 | 2018-02-26 | A kind of new ceramics molding equipment based on 3D printing technique |
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| CN201810158365.5A CN108297244A (en) | 2018-02-26 | 2018-02-26 | A kind of new ceramics molding equipment based on 3D printing technique |
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| CN108973133A (en) * | 2018-09-21 | 2018-12-11 | 无锡微研精密冲压件有限公司 | A kind of control method of the silicon foam 3D printing for electronic component damping |
| CN109124821A (en) * | 2018-08-31 | 2019-01-04 | 上海大学 | A kind of building system and method for three-dimensional multi-scale vascularizing scaffold |
| CN109227876A (en) * | 2018-10-27 | 2019-01-18 | 长沙鑫元科技有限公司 | A kind of molding equipment of clay sculpture printer |
| CN109806524A (en) * | 2019-03-13 | 2019-05-28 | 中国民用航空总局第二研究所 | A kind of helicopter fire-fighting well-bucket controlled using cylinder |
| CN109849149A (en) * | 2018-12-29 | 2019-06-07 | 潮州市源润科技有限公司 | A kind of accurate ceramic 3D printer and its Method of printing |
| CN113858378A (en) * | 2021-10-11 | 2021-12-31 | 辽宁工程技术大学 | Extrusion molding printing structure for purple sand paste |
| CN114800830A (en) * | 2022-05-31 | 2022-07-29 | 北京工业大学 | Cement-based 3D printing rock mass model fracture filling device and method |
| CN115925346A (en) * | 2022-10-11 | 2023-04-07 | 福建环球之源环保科技有限公司 | 3D printing waste material baking-free process and equipment thereof |
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| CN109124821A (en) * | 2018-08-31 | 2019-01-04 | 上海大学 | A kind of building system and method for three-dimensional multi-scale vascularizing scaffold |
| CN109124821B (en) * | 2018-08-31 | 2021-07-06 | 上海大学 | Construction system and method of three-dimensional multi-scale vascularization stent |
| CN108973133A (en) * | 2018-09-21 | 2018-12-11 | 无锡微研精密冲压件有限公司 | A kind of control method of the silicon foam 3D printing for electronic component damping |
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| CN109849149A (en) * | 2018-12-29 | 2019-06-07 | 潮州市源润科技有限公司 | A kind of accurate ceramic 3D printer and its Method of printing |
| CN109806524A (en) * | 2019-03-13 | 2019-05-28 | 中国民用航空总局第二研究所 | A kind of helicopter fire-fighting well-bucket controlled using cylinder |
| CN113858378A (en) * | 2021-10-11 | 2021-12-31 | 辽宁工程技术大学 | Extrusion molding printing structure for purple sand paste |
| CN114800830A (en) * | 2022-05-31 | 2022-07-29 | 北京工业大学 | Cement-based 3D printing rock mass model fracture filling device and method |
| CN115925346A (en) * | 2022-10-11 | 2023-04-07 | 福建环球之源环保科技有限公司 | 3D printing waste material baking-free process and equipment thereof |
| CN115925346B (en) * | 2022-10-11 | 2024-06-25 | 福建环球之源环保科技有限公司 | 3D printing waste baking-free process and equipment thereof |
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