CN106515016A - 3D printing device and technique for forming large products - Google Patents
3D printing device and technique for forming large products Download PDFInfo
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- CN106515016A CN106515016A CN201611149994.9A CN201611149994A CN106515016A CN 106515016 A CN106515016 A CN 106515016A CN 201611149994 A CN201611149994 A CN 201611149994A CN 106515016 A CN106515016 A CN 106515016A
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- pellet
- motion
- forming cavity
- forming
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a 3D printing device and technique for forming large products. The printing device mainly comprises an injection system, a data conversion and control system, a 3D movement system, a forming system and a microwave heating system. The injection system mainly comprises a glue storing box and a nozzle. The data conversion and control system is mainly composed of a movement control card and a data storage. The 3D movement system is mainly composed of an X-direction movement mechanism, a Y-direction movement mechanism, a Z-direction storage cavity movement mechanism and a Z-direction forming cavity movement mechanism. The forming system is mainly composed of a storage cavity, a storage cavity piston, a forming cavity, a forming cavity piston and a paving roller. The microwave heating system is mainly composed of a heating cavity and a temperature controller. The printing process only involves binding of glue and particle materials, microwave heating is adopted for a heating part, the interiors and exteriors of printed products can be heated at the same time, and finally the products with the interiors uniformly filled are formed. The 3D printing device and technique for forming large products are high in forming speed, the technique is simple, limitation of printed materials is small, and the 3D printing device and technique can be used for forming large products.
Description
Technical field
The present invention relates to a kind of 3D printing device and technique, beat more particularly, to a kind of 3D that can be used for molding massive article
Printing equipment is put and technique.
Background technology
Rapid shaping technique (it is also called rapid prototyping technique, Rapid Prototyping Manufacturi-ng,
Abbreviation RPM), also referred to as 3D printing.Three-dimensional modeling data of the technology according to object, by former being successively superimposed
Mode manufactures entity.The technology can overcome the special construction obstacle that current traditional mechanical processing cannot be realized, it is possible to achieve arbitrarily
The simplification production of complex components.Existing 3D printing technique is broadly divided into, and fused glass pellet (FDM), photocuring stand
Body printing (SLA), selective laser sintering (SLS), stereolithography (SLA), three-dimensional spray printing (3DP) and digital optical processing
(DLP) etc..
Current fused glass pellet (FDM) technology is mainly spiro rod plasticizing and melt conveying is existed by three-dimensional motion mechanism
Successively accumulation molding on flat board, or silk successively accumulation molding on base plate with same principle is melted by heated nozzle.Spiral shell
The shortcoming of bar plasticizing conveying-type printer is that the technological parameter for printing material is difficult to debugging accurately, and screw rod bringing-up section temperature
In fluctuation and machine barrel, the inhomogeneities of stream doses can all directly affect the precision for printing product.The 3D printing of heated nozzle fuse wire type
Although machine can ensure that printing precision to a certain extent, printed material can only be silk and build and power all very littles,
So haveing the shortcomings that printed material species is restricted, print speed is excessively slow and is unable to molding massive article.
The content of the invention
For the weak point of current 3D printer, the present invention proposes a kind of new 3D printing device and technique, can be used for
Molding massive article.The invention is added by spraying system, data conversion and control system, three-dimensional motion system, formation system, microwave
Hot systems etc. are constituted.The invention is divided into printing portion and heating part.Print procedure is only the bonding of glue and pellet, with screw rod
Plasticizing conveying-type is printed to be compared, it is to avoid temperature fluctuation and the uneven impact to product precision of stream material.Heating part is microwave
Heating, can make printing product inside and outside while heating, forms the uniform product of internal filling.The invention shaping speed is fast, molding
Cheng Wuxu is heated, and process is simple, printed material are restricted less, can be used for molding massive article.
The technical scheme for realizing above-mentioned purpose is that a kind of 3D printing device that can be used for molding massive article mainly includes
Spraying system, data conversion and control system, three-dimensional motion system, formation system and microwave heating system, spraying system are main
It is made up of glue Storage Box and nozzle；Data conversion and control system are mainly made up of motion control card and data storage；Three
Dimension motor system is mainly moved from X to motion and Y-direction motion and Z-direction storage cavity motion and Z-direction forming cavity
Mechanism constitutes；Formation system is mainly made up of storage cavity, storage cavity piston, forming cavity, forming cavity piston and stone roller；Microwave adds
Hot systems are mainly made up of heating cavity and temperature controller.Using storage cavity piston, forming cavity piston Z-direction reverse motions and paving
Pellet is uniformly paved with by the side-to-side movement of material roller in forming cavity, and the drive of subsequent spraying system Jing X and Y-direction motion is in pellet
The top of layer makes part pellet bonding according to the cross section profile of three-dimensional digital model to pellet layer sprayed glues, realizes cross section profile
Interior pellet realizes bonding with following formed part, and after the completion of layer cross section bonding, Z-direction motion drives storage cavity
The thickness that piston brings Forward, while the thickness that forming cavity piston sends behind, stone roller enters again in layer overlay pellet above
The bonding of the new layer cross section of row, until complete whole model.Finally the entity is put in microwave applicator and is thermally formed inside
Fill uniform entity.
A kind of 3D printing device that can be used for molding massive article of the present invention, nozzle are located above forming cavity, at nozzle in
Portion is provided with pneumatic operated valve, to control the switch of nozzle, and then controls the outflow of glue；It is connected with certain pressure in glue Storage Box
Gas so as to be internally formed certain back pressure, to ensure that glue can be smoothly flowed out by nozzle.
A kind of 3D printing device that can be used for molding massive article of the present invention, nozzle is in X to the drive with Y-direction motion
Under, scanning motion is done above the granule materials plane of forming cavity, Z-direction motion drives storage cavity piston and forming cavity to live
Vertically precise motion is filled in, the thickness per formable layer is determined by the height that storage cavity rises, the height that storage cavity piston rises
The height that degree declines equal to forming cavity piston.Z-direction motion will have larger driving force and auto-lock function.
A kind of 3D printing device that can be used for molding massive article of the present invention, data storage cutting three-dimensional digital model
Piece file storage is in equipment；Motion control card be used for control Z-direction storage cavity motion, Z-direction forming cavity motion, X to
Motion, Y-direction motion, the rotation of stone roller and the spraying of glue.
A kind of 3D printing device that can be used for molding massive article of the present invention, storage cavity are two no upper and lower with forming cavity
Surface cuboid cavity, is coordinated with storage cavity piston and forming cavity piston respectively, and the volume that formation can hold pellet material is empty
Between.Reclaim chamber to be made up of the casing of a upper surface open, be close to the forming cavity granular materialss unnecessary to reclaim forming cavity,
Reclaim bottom of chamber portion have can folding pumping board, the convenient unnecessary pellet that will be collected takes out；Storage cavity piston and forming cavity piston difference
Driven by Z-direction storage cavity motion, Z-direction forming cavity motion.
A kind of 3D printing device that can be used for molding massive article of the present invention, the model for completing that bonds is in outer surface-coated one
Layer fusing point is higher than pellet and places into after having the material coat of certain elasticity to enter in the heating cavity of microwave applicator
Row heat treated.As the fusing point of external coating is compared with pellet height, so when beads fuse, coating is still solid, shaped layer by layer
Fused materials can form certain package action by state, it is to avoid product is heated and caves in；As coating has certain thermoplasticity,
Can allow that fused materials have certain elastic dilatation, so as to avoid the generation of internal stress.
Coating layer material can be crosslinking material or thermosets, no longer melt when experiencing thermal source after coat material solidification again
Change.Coating layer material can also be rubber, also not re-melting when experiencing thermal source after the vulcanization of rubber again.Coating layer material is on product
Painting method can impregnate, extrude, spraying or plastic uptake.
A kind of 3D printing device that can be used for molding massive article of the present invention, the heating for printing product are added using microwave
Heat, microwave heating belong to heating in one kind, by microwave section electromagnetic wave by the inside of energy transmission to heating object, make material
It is overall to heat up simultaneously, the inside of heating object is directly acted on, it is molten when inequality makes different inside product due to heating to avoid
Melt so as to cause uniformly to fill inside product, produce thermal stress and internal flaw.The temperature that different material need to be heated is different,
Can be controlled by adjusting the temperature on temperature controller.
A kind of 3D printing device that can be used for molding massive article of the present invention, makes to after heating melting, internal filling is uniform
Product are cooled down, and coat is removed after finishing by cooling, and is surface-treated, that is, obtain end article.
Adopt a kind of technique of above-mentioned 3D printing device that can be used for molding massive article for：The first step, storage cavity piston,
Reverse motions and stone roller of the drive of forming cavity piston Jing Z-direction storage cavity motions and Z-direction forming cavity motion in Z-direction
Side-to-side movement pellet is uniformly paved with the top of forming cavity, subsequent spraying system Jing X are to motion and Y-direction motion
The cross section profile of drive three-dimensional digital model in the top of pellet layer is according to data storage make to pellet layer sprayed glues
Part pellet bonding, realizes that the pellet in cross section profile realizes bonding with following formed part, when a layer cross section has bondd
Cheng Hou, Z-direction motion drive the thickness that storage cavity piston brings Forward, while the thickness that forming cavity piston sends behind, paving
Material roller carries out the bonding of a new layer cross section again in layer overlay pellet above, until completing whole model print procedure；Second
Step, prints the product for obtaining and takes out after glue curing, and stone roller pushes unnecessary pellet in recovery chamber, is printing what is obtained
Article outer surface one layer of fusing point of coating is higher than pellet and has the coat of certain elasticity, places into microwave applicator afterwards
Heat treated is carried out in heating cavity, as the fusing point of coat is compared with pellet height, so when beads fuse, coating is layer by layer
It is still solid state, can fused materials be formed with certain package action, it is to avoid product is heated and caves in；As coat has one
Fixed thermoplasticity, can allow that fused materials have certain elastic dilatation, and so as to avoid the generation of internal stress, different material need to add
The temperature of heat is different, can be controlled by adjusting the temperature on temperature controller；3rd step, is carried out to product after internal heating melting cold
But, coat is removed after finishing by cooling, and is surface-treated, and obtains end article.
A kind of 3D printing technique that can be used for molding massive article of the present invention, the shape of pellet can be chopped fiber shape, grain
Expect to intersect in the product for obtaining is printed, form network structure after microwave heating, adhesive strength is higher inside product, is not only
Only by glue bonding.
A kind of 3D printing technique that can be used for molding massive article of the present invention, pellet can be elastic ball, and glue is filled in
Between elastic ball, elastic ball is bonded together, in glue, add some fillers to microwave susceptible, product is in microwave heating mistake
In journey, thermal source is located in glue, melting adhered together by the heat transfer of the glue elastic ectosphere that causes to contact, cooling
Product has elasticity due to the presence of elastic ball afterwards, and resulting product is elastic article.
A kind of 3D printing technique that can be used for molding massive article of the present invention, in order to reduce the use of material, pellet may be used also
With the microsphere using hollow microsphere or foaming, contained gas is enveloped by glue, and in microwave heating, gas is not easy to ease
Go out, the expansion ratio of the product of gained can be very big, in the case that product strength is less demanding, preferentially can adopt.In addition,
If the diameter of microsphere is approximately equal to the thickness of printing, the wall thickness of microsphere is very thin, and material-saving is more notable.
A kind of 3D printing device that can be used for molding massive article of the present invention and technique, its advantage are that the invention divides
For printing portion and heating part.Print procedure is only the bonding of glue and pellet, compared with spiro rod plasticizing conveying-type is printed, is kept away
Temperature fluctuation and the uneven impact to product precision of stream material are exempted from.Heating part is microwave heating, can be made inside and outside printing product
Heat simultaneously, form the uniform product of internal filling.The invention shaping speed is fast, forming process need not be heated, and process is simple is beaten
Printed material material is restricted less, can be used for molding massive article.
Description of the drawings
Fig. 1 is a kind of structure of the 3D printing device that can be used for molding massive article of the present invention and technical process schematic diagram.
Fig. 2 is the front 3D printing product figure for adding coat of melting.
In figure：1-Z is to storage cavity motion；2- storage cavity pistons；3- storage cavitys；4- stone rollers；5-X is to fitness machine
Structure；6- nozzles；7-Y is to motion；8- glue Storage Boxes；9- forming cavities；10- prints product；11- forming cavity pistons；12- is returned
Receive chamber；13- heating cavities；14- temperature controllers；15- end articles；16- motion control cards；17- data storages；18-Z is to molding
Chamber motion；19- coats.
Specific embodiment
The present invention proposes a kind of 3D printing device for molding massive article and technique, as shown in figure 1, main by spraying
Penetrate the composition such as system, data conversion and control system, three-dimensional motion system, formation system, microwave heating system.Formation system and
Microwave heating system is separated, and spraying system is mainly made up of glue Storage Box 8, nozzle 6；Data conversion and control system master
To be made up of motion control card 16, data storage 17；Three-dimensional motion system is mainly from X to motion 5 and Y-direction motion
7 and Z-direction storage cavity motion 1 and Z-direction forming cavity motion 18 constitute；Formation system is mainly by storage cavity 3, storage cavity
Piston 2, forming cavity 9, forming cavity piston 11 and stone roller 4 are constituted；Microwave heating system is mainly by heating cavity 13 and temperature controller
14 compositions.Arrange spraying system above forming cavity in formation system, three-dimensional motion system control nozzle 6, storage cavity piston 2,
The motion of forming cavity piston 11 and stone roller 4, data conversion and control system control three-dimensional motion system.
A kind of 3D printing device and technique for molding massive article of the present invention, its course of work is：First, it is printed
Journey.Storage cavity 3 is two no upper and lower surface cuboid cavitys with forming cavity 9, respectively with storage cavity piston 2 and forming cavity piston
11 coordinate, and formation can hold the volume space of pellet material.Storage cavity piston 2, the motion of 11 Jing Z-directions storage cavity of forming cavity piston
The drive of mechanism 1 and Z-direction forming cavity motion 18 the reverse motions of Z-direction and the side-to-side movement of stone roller 4 make pellet into
Uniformly be paved with the top of die cavity 9, subsequent spraying system Jing X to motion 5 and Y-direction motion 7 drive in pellet layer
Top makes part pellet bonding according to the cross section profile of three-dimensional digital model in data storage 17 to pellet layer sprayed glues, real
Pellet in existing cross section profile realizes bonding with following formed part, after the completion of layer cross section bonding, Z-direction motion
The thickness for driving storage cavity piston 2 to bring Forward, while the thickness that forming cavity piston 11 sends behind, stone roller is spread above again
Last layer pellet, carries out the bonding of a new layer cross section, until completing whole model.Reclaim case of the chamber 12 by a upper surface open
Body is constituted, and is close to the granular materialss unnecessary to reclaim forming cavity 9 of forming cavity 9.2nd, melting process.Product 10 is printed in appearance
Face coats the heating chamber that one layer of fusing point is higher than pellet and has certain elastic coat 19 to place into microwave applicator afterwards
Heat treated is carried out in body 13.Product after coating as shown in Fig. 2 due to the fusing point of coat 19 it is high compared with pellet, so working as grain
When material melting, 19 layers of coat is still solid state, fused materials can be formed with certain package action, it is to avoid product
It is heated and caves in；As coat has certain thermoplasticity, can allow that fused materials have certain elastic dilatation, so as in avoiding
The generation of stress.The temperature that different material need to be heated is different, can be controlled by adjusting the temperature on temperature controller 14.3rd, cool down
And be surface-treated.The uniform product of internal filling after heating melting is cooled down, coat 19 is gone after finishing by cooling
Fall, and be surface-treated, that is, obtain end article 15.
Claims (10)
1. a kind of 3D printing device that can be used for molding massive article, it is characterised in that：Mainly include spraying system, data conversion
And control system, three-dimensional motion system, formation system and microwave heating system, spraying system is mainly by glue Storage Box and nozzle
Composition；Data conversion and control system are mainly made up of motion control card and data storage；Three-dimensional motion system mainly from X to
Motion and Y-direction motion and Z-direction storage cavity motion and Z-direction forming cavity motion composition；Formation system master
To be made up of storage cavity, storage cavity piston, forming cavity, forming cavity piston and stone roller；Microwave heating system is mainly by heating chamber
Body and temperature controller composition.
2. a kind of 3D printing device that can be used for molding massive article according to claim 1, it is characterised in that：Nozzle position
Above forming cavity, at nozzle inside be provided with pneumatic operated valve, be connected with the gas with certain pressure in glue Storage Box.
3. a kind of 3D printing device that can be used for molding massive article according to claim 1, it is characterised in that：Storage cavity
It is two no upper and lower surface cuboid cavitys with forming cavity, coordinates with storage cavity piston and forming cavity piston respectively, be close to
Forming cavity be provided with recovery chamber, reclaim chamber be made up of the casing of a upper surface open, reclaim bottom of chamber portion have can folding pumping board.
4. using a kind of technique of the 3D printing device that can be used for molding massive article described in claim 3, it is characterised in that：
The first step, the drive of storage cavity piston, forming cavity piston Jing Z-direction storage cavity motions and Z-direction forming cavity motion is in Z-direction
The side-to-side movement of reverse motions and stone roller pellet is uniformly paved with the top of forming cavity, subsequent spraying system Jing X are to fortune
The cross section profile of the drive of motivation structure and Y-direction motion three-dimensional digital model in the top of pellet layer is according to data storage
Part pellet bonding is made to pellet layer sprayed glues, realizes that the pellet in cross section profile is realized with following formed part viscous
Knot, after the completion of layer cross section bonding, Z-direction motion drives the thickness that storage cavity piston brings Forward, while forming cavity is lived
The thickness that plug sends behind, stone roller carry out the bonding of a new layer cross section again in layer overlay pellet above, until completing whole
Model print procedure；Second step, prints the product for obtaining and takes out after glue curing, and unnecessary pellet is pushed recovery by stone roller
In chamber, the article outer surface that obtains is printed, to coat one layer of fusing point higher than pellet and have the coat of certain elasticity, afterwards
Place into；3rd step, cools down to product after internal heating melting,
Coat is removed after finishing by cooling, and is surface-treated, and obtains end article.
5. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Coat
Painting method of the material on product can be impregnated, extrude, spraying or plastic uptake.
6. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Coat
Material is crosslinking material or thermosets.
7. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Coat
Material is rubber, also not re-melting when experiencing thermal source after the vulcanization of rubber again.
8. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Pellet
It is shaped as chopped fiber shape.
9. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Pellet is
Elastic ball, glue are filled between elastic ball, add some fillers to microwave susceptible in glue.
10. a kind of 3D printing technique that can be used for molding massive article according to claim 4, it is characterised in that：Pellet
The microsphere of hollow microsphere or foaming can also be adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611149994.9A CN106515016B (en) | 2016-12-14 | 2016-12-14 | A kind of 3D printing device can be used for forming massive article and technique |
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|---|---|---|---|
| CN201611149994.9A CN106515016B (en) | 2016-12-14 | 2016-12-14 | A kind of 3D printing device can be used for forming massive article and technique |
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| CN106515016A true CN106515016A (en) | 2017-03-22 |
| CN106515016B CN106515016B (en) | 2019-06-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877846A (en) * | 2017-11-01 | 2018-04-06 | 重庆渝开信息技术有限公司 | A kind of 3D printer |
| CN109016068A (en) * | 2018-08-24 | 2018-12-18 | 广东奥基德信机电有限公司 | A kind of 3D printing equipment |
| CN109878072A (en) * | 2019-03-26 | 2019-06-14 | 浙江科盈新材料科技有限公司 | A kind of gas auxiliary microchannel substrate forming 3D printing equipment |
| WO2020051843A1 (en) * | 2018-09-13 | 2020-03-19 | 西门子（中国）有限公司 | Method for manufacturing sensor by means of printing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107877846A (en) * | 2017-11-01 | 2018-04-06 | 重庆渝开信息技术有限公司 | A kind of 3D printer |
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| WO2020051843A1 (en) * | 2018-09-13 | 2020-03-19 | 西门子（中国）有限公司 | Method for manufacturing sensor by means of printing |
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| CN109878072A (en) * | 2019-03-26 | 2019-06-14 | 浙江科盈新材料科技有限公司 | A kind of gas auxiliary microchannel substrate forming 3D printing equipment |
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|---|---|
| CN106515016B (en) | 2019-06-25 |
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