CN106478081A - The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior - Google Patents
The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior Download PDFInfo
- Publication number
- CN106478081A CN106478081A CN201610805114.2A CN201610805114A CN106478081A CN 106478081 A CN106478081 A CN 106478081A CN 201610805114 A CN201610805114 A CN 201610805114A CN 106478081 A CN106478081 A CN 106478081A
- Authority
- CN
- China
- Prior art keywords
- vitreous silica
- vacuum
- temperature
- carbothermal reduction
- temperature behavior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5057—Carbides
- C04B41/5059—Silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6023—Gel casting
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior, it is related to ceramic making field, the method that this vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior strengthens vitreous silica high-temperature behavior by vacuum carbothermal reduction vitreous silica, and the ceramic high temperature that reduction generates is better than fused quartz ceramic casting mold itself.Under the high temperature conditions, outer layer is reduced that ceramic surface performance is good, consistency is high, has potentiation for the performance under vitreous silica high temperature.
Description
Technical field
The present invention relates to ceramic making field, strengthen vitreous silica high-temperature behavior particularly to a kind of vacuum carbothermal reduction
Method.
Background technology
Fused quartz ceramic is prepared from through series of processes with vitreous silica for raw material, and through high temperature sintering
A kind of refractory material.Fused quartz ceramic not only possesses many advantageous properties of quartz glass, as little in thermal coefficient of expansion, thermal shock
Good stability, good electrical property, nuclearity can good, the features such as chemerosiveness resistent is good, be dried and burn till contraction little it is easy to molding is complicated
Shape and big part product etc..Fused quartz ceramic has great advantage in the manufacture view of blade of aviation engine, especially
Fused quartz ceramic has great advantage in terms of core removing.
The brilliant hollow turbine vane of orientation has the advantages of temperature capability is high, and mechanical property is good, frequently with aluminium base core, utilizes
The method of model casting is realized manufacturing, and the method process cycle is long, high cost, and depoling ability, limits orientation crystalline substance
Extensively apply.
Content of the invention
The technical problem to be solved is to provide a kind of vacuum carbothermal reduction to strengthen vitreous silica high-temperature behavior
Method, prepares fused quartz ceramic casting mold by the method for quick shaping, passes through carbon thermal reduction anti-in high temperature, vacuum environment
Should, generate the ceramic coating layer of one layer of function admirable in the outer surface of original casting mold, through re-sintering technique, improve pottery in height
Bending resistance fracture resistance under the conditions of temperature.
For achieving the above object, the present invention provides following technical scheme：A kind of vacuum carbothermal reduction strengthens vitreous silica
The method of high-temperature behavior it is characterised in that：The method of described vacuum carbothermal reduction strengthening vitreous silica high-temperature behavior includes as follows
Step：
(1) initially with CAD and optical soliton interaction fabrication techniques complexity hollow blade resin mould；
(2) and then using gel method prepare fused quartz ceramic slurry；
(3) content of ceramic size is vitreous silica powder：75%-85%, Organic substance：2%-4%, pore creating material：1%-
3%, mineralizer and toughener are respectively 2%-4%, and deionized water supplies 100%；Add dispersant polyacrylic acid in ceramic size
Sodium, sodium polyacrylate accounts for the 0.5% of vitreous silica powder quality；
(4) after stirring and ball milling, vibration casting is to the die cavity of resin die in a vacuum；
(5) cool drying, and vitreous silica base substrate thermal sintering at high temperature；
(6) by shape fused quartz ceramic in Ludox vacuum impregnation half an hour, take out and in oven for drying；
(7) under elevated temperature in vacuo, carbon dust is laid together with vitreous silica and carries out vacuum high-temperature burning in sintered base plate
Knot (cladding sintering), sintering completes, and high temperature sintering forms the fused quartz ceramic core with excellent high performance under vacuo.
Prepare the hollow blade tree of labyrinth first with photocuring 3D printing rapid prototyping ＆ manufacturing technology in the method
Fat model, then adopts the method for gel mold to manufacture fused quartz ceramic：Prepare vitreous silica base ceramic size, uniform stirring
For a period of time, in the die cavity that slurry is poured into hollow blade resin die under vacuum, vibration condition, vacuum is cold with after ball milling
Remove organic crosslinking agent and resin piece after lyophilizing is dry, after high temperature sintering, obtain high precision, fusion quartz-ceramics casting mold.In vacuum bar
Under part, by fused quartz ceramic in Ludox vacuum impregnation (half an hour), put into oven for drying.Under vacuum, will
Carbon dust lays in sintered base plate, both high temperature sinterings mixture (cladding sintering) together with vitreous silica.After the completion of sintering, true
High temperature sintering again under sky, forms the fused quartz ceramic core with excellent high performance.
Preferably, the method for described vacuum carbothermal reduction strengthening vitreous silica high-temperature behavior is directed to hollow turbine vane and melts
Fused silica ceramic-mould, its forming method is grouting method, monoblock type ceramic-mould, hot pressing casting mold transferring molding.
Preferably, before there is thermal response in a vacuum in described vitreous silica casting mold, will vacuum impregnation in Ludox, dipping
Time is half an hour, after the completion of vitreous silica casting mold dipping, puts into baking oven and is dried, and clear up undesired impurities.
Preferably, carbon dust and the vitreous silica on described reaction substrate lay in together with, and allow carbon dust cladding vitreous silica,
Sintering condition is vacuum high-temperature.
Preferably, after described thermal reduction fused quartz ceramic casting mold, the junction temperature that reburns is 1500-1600 DEG C, and sintering needs
Complete in vacuum, so that powder is kept uniformly using stirring and ball grinding method during slurry preparation, Ball-milling Time divides for 40-50
Clock, during vibration casting mold, using vibration, vacuum condition, realizes casting-up densification.
Preferably, described Ludox main component is amorphous silicon oxide.
Beneficial effect using above technical scheme is：The method that this vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior
Vitreous silica high-temperature behavior is strengthened by vacuum carbothermal reduction vitreous silica, the ceramic high temperature that reduction generates is better than vitreous silica
Ceramic-mould itself.Under the high temperature conditions, outer layer is reduced that ceramic surface performance is good, consistency is high, for vitreous silica high temperature
Under performance there is potentiation.
Brief description
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of fused quartz ceramic of the present invention.
Wherein, 1-SiC functional coating, 2- fused quartz ceramic casting mold.
Specific embodiment
Describe the method that a kind of vacuum carbothermal reduction of the present invention strengthens vitreous silica high-temperature behavior below in conjunction with the accompanying drawings in detail
Preferred implementation.
Fig. 1 shows the specific embodiment party that a kind of vacuum carbothermal reduction of the present invention strengthens the method for vitreous silica high-temperature behavior
Formula：In the method for this vacuum carbothermal reduction strengthening vitreous silica high-temperature behavior, the preparation of fused quartz ceramic casting mold 2 adopts light solid
The method changing quick shaping, prepares fused quartz ceramic resin mould first, then adopts gel injection-moulding method by each particle diameter
Vitreous silica powder, mixed by the effect of AM and MBAM, prepare fused quartz ceramic slurry, the viscosity model of slurry
Enclose for 160-260mPs.In ball mill ball milling 40 minutes afterwards, by slurry cast to resin die under the conditions of vacuum, vibrations
Die cavity in；Ceramic body cool drying to castable, the time is 24h, carries out presintering and high temperature sintering at high temperature.
Under vacuum, by fused quartz ceramic in Ludox vacuum impregnation (half an hour), put into oven for drying.
Under elevated temperature in vacuo, carbon dust is laid together with vitreous silica and carries out vacuum high-temperature sintering (cladding burning in sintered base plate
Knot), sintering completes, and high temperature sintering forms the fused quartz ceramic core with excellent high performance under vacuo.Functional layer is complete
Cheng Hou, forms compact high-strength degree silicon carbide ceramics layer in 1500-1600 DEG C of sintering.This invention is mainly used in strengthening complex precise pottery
The elevated temperature strength of porcelain foundry goods is it is ensured that the formed precision of metal casting and quality.
The content of ceramic size is vitreous silica powder：75%-85%, Organic substance：2%-4%, pore creating material：1%-3%,
Mineralizer and toughener are respectively 2%-4%, and deionized water supplies 100%；Add dispersant sodium polyacrylate in ceramic size, gather
Sodium acrylate accounts for the 0.5% of vitreous silica powder quality；
Vitreous silica high-temperature behavior is strengthened by vacuum carbothermal reduction vitreous silica, the ceramic high temperature that reduction generates is better than
Fused quartz ceramic casting mold 2 itself.Under the high temperature conditions, ceramic surface performance is good, consistency is high, for tekite for outer layer deposition
Performance under English high temperature has potentiation.
As shown in figure 1, after fused quartz ceramic oxidation is formed, forming compact high-strength degree SiC work(in 1500-1600 DEG C of sintering
Can coating 1.High temperature sintering program is：6 hours, to 600 DEG C, are incubated 1 hour；4 hours are warming up to 1500 DEG C, and insulation 3 is little
When；Cooling down, SiC functional coating 1 main component is SiC.The high-temperature behavior of SiC is excellent, to fused quartz ceramic core
It is improved largely under hot environment, bring up to this invention of 20-25Mp. from 10-15Mp and be mainly used in strengthening complex precise pottery
The elevated temperature strength of foundry goods is it is ensured that the formed precision of metal casting and quality.
Above is only the preferred embodiment of the present invention it is noted that for the person of ordinary skill of the art,
Without departing from the concept of the premise of the invention, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.
Claims (7)
1. a kind of vacuum carbothermal reduction strengthen vitreous silica high-temperature behavior method it is characterised in that：Described vacuum carbothermal reduction
The method of strengthening vitreous silica high-temperature behavior comprises the steps：
(1) initially with CAD and optical soliton interaction fabrication techniques complexity hollow blade resin mould；
(2) and then using gel method prepare fused quartz ceramic slurry；
(3) content of ceramic size is vitreous silica powder：75%-85%, Organic substance：2%-4%, pore creating material：1%-3%,
Mineralizer and toughener are respectively 2%-4%, and deionized water supplies 100%；Add dispersant sodium polyacrylate in ceramic size, gather
Sodium acrylate accounts for the 0.5% of vitreous silica powder quality；
(4) after stirring and ball milling, vibration casting is to the die cavity of resin die in a vacuum；
(5) cool drying, and vitreous silica base substrate thermal sintering at high temperature；
(6) by shape fused quartz ceramic in Ludox vacuum impregnation half an hour, take out and in oven for drying；
(7) under elevated temperature in vacuo, carbon dust is laid together with vitreous silica and carries out vacuum high-temperature sintering (bag in sintered base plate
Upside down firing is tied), sintering completes, and high temperature sintering forms the fused quartz ceramic core with excellent high performance under vacuo.
2. vacuum carbothermal reduction according to claim 1 strengthen vitreous silica high-temperature behavior method it is characterised in that：Institute
The method stating vacuum carbothermal reduction strengthening vitreous silica high-temperature behavior is directed to hollow turbine vane fused quartz ceramic casting mold, its
Forming method is grouting method, monoblock type ceramic-mould, hot pressing casting mold transferring molding.
3. vacuum carbothermal reduction according to claim 1 strengthen vitreous silica high-temperature behavior method it is characterised in that：Institute
State before vitreous silica casting mold occurs thermal response in a vacuum, will vacuum impregnation in Ludox, dip time is half an hour, melts
After the completion of fused silica casting mold dipping, put into baking oven and dried, and clear up undesired impurities.
4. vacuum carbothermal reduction according to claim 1 strengthen vitreous silica high-temperature behavior method it is characterised in that：Institute
State carbon dust and vitreous silica on reaction substrate lay in together with, and allow carbon dust cladding vitreous silica, sintering condition is that vacuum is high
Temperature.
5. vacuum carbothermal reduction according to claim 1 strengthen vitreous silica high-temperature behavior method it is characterised in that：Institute
After stating thermal reduction fused quartz ceramic casting mold, the junction temperature that reburns is 1500-1600 DEG C, and sintering needs to complete in vacuum.
6. so that powder is kept uniformly using stirring and ball grinding method during slurry preparation, Ball-milling Time is 40-50 minute, vibration
During casting mold, using vibration, vacuum condition, realize casting-up densification.
7. vacuum carbothermal reduction according to claim 1 strengthen vitreous silica high-temperature behavior method it is characterised in that：Institute
Stating Ludox main component is amorphous silicon oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805114.2A CN106478081A (en) | 2016-08-31 | 2016-08-31 | The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610805114.2A CN106478081A (en) | 2016-08-31 | 2016-08-31 | The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106478081A true CN106478081A (en) | 2017-03-08 |
Family
ID=58273478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610805114.2A Pending CN106478081A (en) | 2016-08-31 | 2016-08-31 | The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106478081A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927802A (en) * | 2017-03-17 | 2017-07-07 | 邹亚静 | A kind of manufacture method for noting solidification forming fused silica crucible |
| CN109128020A (en) * | 2017-06-27 | 2019-01-04 | 通用电气公司 | For manufacturing the resin and its application method of porous ceramics stereolithography |
| CN110465627A (en) * | 2019-09-16 | 2019-11-19 | 郑州航空工业管理学院 | A kind of surface layer densification internal defect ceramic core manufacturing method for hollow turbine vane hot investment casting |
| CN110655381A (en) * | 2019-10-09 | 2020-01-07 | 安徽徽博先临三维云打印技术有限公司 | Environment-friendly material for 3D printing cultural relic restoration and preparation method thereof |
-
2016
- 2016-08-31 CN CN201610805114.2A patent/CN106478081A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106927802A (en) * | 2017-03-17 | 2017-07-07 | 邹亚静 | A kind of manufacture method for noting solidification forming fused silica crucible |
| CN109128020A (en) * | 2017-06-27 | 2019-01-04 | 通用电气公司 | For manufacturing the resin and its application method of porous ceramics stereolithography |
| US11230503B2 (en) | 2017-06-27 | 2022-01-25 | General Electric Company | Resin for production of porous ceramic stereolithography and methods of its use |
| US12054437B2 (en) | 2017-06-27 | 2024-08-06 | General Electric Company | Resin for production of porous ceramic stereolithography and methods of its use |
| CN110465627A (en) * | 2019-09-16 | 2019-11-19 | 郑州航空工业管理学院 | A kind of surface layer densification internal defect ceramic core manufacturing method for hollow turbine vane hot investment casting |
| CN110655381A (en) * | 2019-10-09 | 2020-01-07 | 安徽徽博先临三维云打印技术有限公司 | Environment-friendly material for 3D printing cultural relic restoration and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102249919B1 (en) | Method for producing silica-base ceramic core capable of adjusting a thermal expansion coefficient | |
| CN102603275B (en) | Preparation method of silicon-based ceramic core | |
| CN107021771B (en) | Calcium oxide-based ceramic casting mold manufacturing method based on 3D printing technology | |
| CN106478081A (en) | The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior | |
| CN103880406B (en) | A kind of preparation method of silicon oxide ceramics core of improvement | |
| CN108046833A (en) | A kind of preparation process of the ceramic heating body with porous fever membrane structure | |
| CN102173819B (en) | Preparation method of electric vacuum ceramic tube shell | |
| CN106079030B (en) | A kind of method for fast mfg of the calcium oxide-based ceramic-mould of powder overlay film | |
| CN104384452A (en) | Preparation technique for thin-walled silica-based ceramic mold core | |
| CN110078484B (en) | Corundum-mullite crucible and preparation method thereof | |
| CN109467438A (en) | A kind of silicon carbide ceramics Stereolithography method | |
| CN106316369A (en) | Dumping and sintering process for 3D printing ceramic body | |
| CN106278210A (en) | A kind of preparation method of high-compactness fused quartz ceramic | |
| CN104451953B (en) | The preparation method of trivalent ytterbium ion doping Luetcium aluminum garnet crystalline ceramics optical fiber | |
| CN102407291A (en) | Method for manufacturing ceramic cores through two-stage burying sintering | |
| CN110386809A (en) | A kind of silicon-base ceramic core and preparation method thereof | |
| CN110386823A (en) | Preparation method based on selective laser sintering ceramic-based complex structural member | |
| CN107900286B (en) | A kind of fused quartz ceramic shell preparation method | |
| RU2277452C1 (en) | Method of manufacture of ceramic shell for casting with narrow developed inner spaces in process of casing to models | |
| CN110078477A (en) | A kind of magnesia ceramic core and preparation method thereof | |
| CN103274692A (en) | Unfired SiC kiln furniture material and production method thereof | |
| CN110228995A (en) | A kind of vacuum sintering method of photocuring 3D printing aluminium oxide ceramics biscuit | |
| CN107127302A (en) | A kind of Coremaker skill of moltening mold castings | |
| CN108329041B (en) | Sagger special for microwave smelting and manufacturing method thereof | |
| CN105283258A (en) | Core for precision casting, production method therefor, and mold for precision casting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170308 |
|
| WD01 | Invention patent application deemed withdrawn after publication |