CN106493829A - A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel - Google Patents
A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel Download PDFInfo
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- CN106493829A CN106493829A CN201610385446.XA CN201610385446A CN106493829A CN 106493829 A CN106493829 A CN 106493829A CN 201610385446 A CN201610385446 A CN 201610385446A CN 106493829 A CN106493829 A CN 106493829A
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- Prior art keywords
- ceramic lamp
- monoblock type
- shot forming
- abnormal shape
- external mold
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Classifications
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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
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
-
- 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
- C04B35/10—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 aluminium oxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
The invention provides a kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel, using gel injection molding and forming technology one-shot forming, external mold is made using stainless steel mould, polypropylene book wall hollow ellipsoids make internal model, and its internal cavity meets the shape of ceramic lamp tube after cooperation；Transparent alumina ceramicses gel grout material is prepared, after crossing gel slip casting, the demoulding is dried, then calcined and internal model is burnt, the ceramic body of an integral expression is formed, then carries out high temperature sintering, finally give transparent alumina ceramicses fluorescent tube of the two ends with capillary tube.The fluorescent tube that the method for the invention is produced, qualification rate are high, and with preferable luminous efficiency, service life extends, and the process production efficiency is high, plastic go out differing complexity lamp tube shapes, it is adaptable to the manufacture of all kinds of translucent ceramic lamp vessels.
Description
Technical field
The present invention relates to the preparation method of ceramic lamp tube, more particularly to a kind of monoblock type one-shot forming abnormal shape crystalline ceramics lamp
The method of pipe.
Background technology
Use transparent Al2O3Pottery replaces quartz glass making metal halide fluorescent tube, improve Metal halogen lamp luminous efficiency,
Color rendering index and life-span, but Metal halogen lamp pipe is more reasonably shaped as two ends band tubule（Sealing electrode is used）, middle part be ellipsoid
Shape is spherical, and this brings great difficulty to the molding of ceramic lamp tube base substrate.It is main with sodium iodide just to grow up in recent years
The white sodium vapor lamp of luminescent substance, it is also desirable to the tube like transparent aluminium oxide ceramics fluorescent tube with arc using elliposoidal or two ends.
In conventional ceramic metal halide fluorescent tube production, a class is global formation, such as injection forming, injection moulding, can fusible core
Mold forming etc..One class is sectional forming, then splice integral be sintered, i.e. five sets of so-called three-piece, if adopt
Tubulose base substrate carries out splicing sintering, often will produce dead angle, causes luminescent substance to pile up, affects luminous efficiency and life-span.Using
Sectional forming noted by gel, then bonds, can form elliposoidal or spherical, solve the problems, such as dead angle.For example patent of invention is disclosed
Number CN101353263A, exactly first molds two axially symmetric two one side of something elliposoidal aluminium oxidies using gel note method hollow
Then two base substrates are docked by base substrate with mould, and the garden ring face of docking is in ν shape grooves, then to ν shape groove injected gel slips, by two
Then base substrate is removed from mould by half of base substrate seamless binding into an entirety, carries out dumping, gives burning and final sintering.But
The shortcoming of this method or many one laps, will affect work efficiency and qualification rate.
Content of the invention
In order to overcome the defect of prior art, the present invention to provide technical scheme below：
A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel, methods described step are as follows：
A：With stainless steel mould as external mold, with polypropylene book wall hollow ellipsoids as internal model；
B：External mold and internal model are pressed after given size assembly, the cavity that between the two formation is matched with ceramic lamp tube shape；
C：Modulated gel material feeding is starched, the high-purity Al wherein containing grain growth inhibitor2O3The solid volume content of powder reaches
50～55, and add the dispersant for increasing mobility；
D：By in gel material feeding slurry injection cavity, the mobility that is starched by gel material feeding and applied vibration are allowed to full of whole empty
Chamber；
E：Internal model, external mold are put in people's baking oven together with gel material feeding slurry, is progressively heated to 50～60 DEG C, starch gel material feeding solidifying
Gu；
F：External mold is unloaded, and ceramic lamp tube base substrate is taken out in the lump together with inner membrance；
G：Ceramic lamp tube base substrate is carried out dumping biscuiting in oxidizing atmosphere stove, by the Organic substance in ceramic lamp tube base substrate together with
Inner core die decomposes discharge in the lump, obtains biscuit of ceramics；
H：Biscuit of ceramics is put in hydrogen furnace carries out high temperature sintering, obtains a monoblock type ceramic lamp tube.
Used as optimal technical scheme, the internal model is by polypropylene, polyethylene or poly- to this dioctyl phthalate ethylene glycol, adopts and adds
Hot blow molding process is made in external mold, and the wall thickness of internal model is 0.05mm～0.2mm.
Used as optimal technical scheme, the external mold is combined into by two halves, and external mold is provided with the injection of injection gel material feeding slurry
Mouthful, multiple internal models can be placed inside the external mold.
Used as optimal technical scheme, the gel grout material is the high-purity Al containing grain growth inhibitor2O3Slurry, coagulates
Gelled material organic monomer is acrylamide, and cross-linking agent is methylene-bisacrylamide, and initiator is Ammonium persulfate., and catalyst is
N, N, N ', N '-tetramethylethylenediamine；Specifically formula proportion is：In every 1000 ml water, 120～200g of acrylamide is added,
Add 2～4g of methylene-bisacrylamide；0.01～0.04g Ammonium persulfate .s and 0.003～0.007g are added in per 100g slurries
N, N, N ', N '-tetramethylethylenediamine, and uniform stirring dispersion.
Used as optimal technical scheme, contained grain growth inhibitor is MgO, La2O3Or Y2O3, the grain growth suppression
Preparation accounts for Al2O3The 0.05～0.1% of gross weight quality.
Used as optimal technical scheme, the dispersant is polyacrylic acid ammonia or citric acid ammonia, and its consumption is high-purity Al2O3Powder
The 0.2～1.5% of material quality.
As optimal technical scheme, the applied vibration in step D, it is that mould is placed on small vibrator to realize
's.
The beneficial effect brought of the present invention is：The fluorescent tube that the method for the invention is produced, qualification rate are high, with preferable
Luminous efficiency, service life extends, and the process production efficiency is high, plastic go out differing complexity fluorescent tube shape
Shape, it is adaptable to the manufacture of all kinds of translucent ceramic lamp vessels.
Specific embodiment
Below presently preferred embodiments of the present invention is described in detail so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defining so as to make to protection scope of the present invention.
Embodiment one：
A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel, its method and step are as follows：
A:According to the size that ceramic lamp tube base substrate is required, rustless steel external mold is prepared, external mold is semi-synthetic by two, and wherein there is slip one end
Main-inlet；
B:According to the size that ceramic lamp tube base substrate is required, polyethylene thin-walled hollow internal model is prepared, its wall thickness about 0.05～
0.10mm, with certain rigidity；
C:Prepare that solid volume content is high and the transparent Al of good fluidity2O3Ceramic gel material feeding is starched：
（1）Monomer pre-mixing liquor is first prepared：Monomeric acrylamide and cross-linking agent methylene-bisacrylamide are dissolved in deionized water
In, its proportioning is：Water 1000ml, acrylamide 160g, 3.2 g of methylene-bisacrylamide；
（2）High pure and ultra-fine Al is added in pre-mixing liquor2O3(together with equivalent to Al2O3The MgO of total amount 0.05～0.1%, 0.05～
0.1% La2O3Or 0.05～0.1% Y2O3Deng sintering aid) ceramic powder, dispersant ammonium citrate solid is simultaneously introduced,
Its addition equivalent to ceramic powder quality 0.1～0.5%, is sufficiently stirred for disperseing, and ceramic powder should be added to of the total volume
More than 40%, and now still have preferable mobility；Content of organics is less than 5 %；
（3）Mixed slurry after by stirring carries out ball milling in ball mill or Ball-stirring mill, obtains high solid volume content, low viscosity
Slurry.Solid phase is (such as Al2O3And its adjuvant) volume content should reach 40～50 vol%, while having preferably flowing
Property, it is easy to the model full of complicated shape；
The pH values that slurry is adjusted using ammonia, make pH values be about 9-10, further improve the mobility of slip；Then 0～
Froth in vacuum in 25 DEG C, de-bubble time are 10～35 minutes；
（4）Add Ammonium persulfate.（Or hydrogen peroxide, potassium peroxydisulfate）As initiator, N, N, N is simultaneously introduced ', N '-tetramethyl second
Used as catalyst, 100g slurries add 0.02g initiators and 0.005g catalyst, and uniform stirring dispersion to diamidogen；
D:Prepare mould, when ceramic lamp tube base substrate is made, after first inside and outside set of molds is got togather, be placed on small vibrator,
Crystalline ceramics gel material feeding slurry is injected along cavity, by its mobility, slip is made full of cavity, in order to allow slurry to be more easy to be full of
Cavity, also can make slurry have more preferable mobility by means of vibration；
E:Mould is positioned in baking oven together with slip, 40～60 DEG C are warming up to, slurry reaction is made and is solidified to form ceramic lamp tube
Base substrate；
F:The demoulding is carried out after ceramic lamp tube base substrate has some strength, ceramic lamp tube base substrate is taken out together with height from punching block,
Dried；
G:Ceramic lamp tube base substrate after by drying is put in atmosphere furnace together with internal model, carries out dumping, is connected in this stage internal model
To be decomposed exclusion with other Organic substances；
H:The ceramic lamp tube base substrate for excluding clean Organic substance is put in hydrogen furnace and is sintered, under 1750～1850 DEG C of high temperature
Exclude pore completely, burn till translucent ceramic lamp vessel.
Embodiment two：
A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel, its method and step are as follows：
A:According to the size that ceramic lamp tube base substrate is required, rustless steel external mold is prepared, external mold is semi-synthetic by two, one end has slip to inject
Mouthful；
B:According to the size that ceramic lamp tube base substrate is required, polyethylene book wall hollow inner formwork is prepared, its wall thickness is about 0.1mm, has
Certain rigidity, internal model are worn by a thin w rod of metal alloy, and thin w rod of metal alloy extension is to prepare used by ceramic capillary；
C:Prepare transparent Al2O3Ceramic gel material feeding is starched：
（1）Prepare monomer pre-mixing liquor：Monomeric acrylamide and cross-linking agent methylene-bisacrylamide are dissolved in deionized water,
Its ratio is as follows：1000 ml of water, acrylamide 160g, 3.2 g of methylene-bisacrylamide；
（2）Add people's ammonium polyacrylate in pre-mixing liquor as dispersant, concentration 1%, 50 milliliters of 2 ml of slurry；
（3）High pure and ultra-fine Al is added in pre-mixing liquor2O3Ceramic powder, is simultaneously introduced equivalent to Al2O3Total amount 0.05～0.1%
MgO, 0.05～0.3% La2O3Or 0.05～0.3% Y2O3Deng sintering aid, it is sufficiently stirred for disperseing, ceramic powder should add
40 more than % of the total volume is arrived, and now still has preferable mobility, content of organics is less than 5 %；
（4）Mixed slurry after by stirring carries out ball milling in ball mill or Ball-stirring mill, obtains high solid volume content, low viscosity
Slurry.Solid phase is (such as Al2O3And its adjuvant) volume content should reach 40～50vol%；There is preferable mobility simultaneously, very
The model of complicated shape is easily full of；
The pH values that slurry is adjusted using ammonia, make pH values be about 9-10, further improve the mobility of slip；Then 0～
Froth in vacuum in 25 DEG C, de-bubble time are 10～35 minutes；
（5）Add Ammonium persulfate.（Or hydrogen peroxide, potassium peroxydisulfate）As initiator, N, N, N is simultaneously introduced ', N '-tetramethyl second
Used as catalyst, 100g slurries add 0.02g initiators and 0.005g catalyst, and uniform stirring dispersion to diamidogen；
D:Prepare mould, when ceramic lamp tube base substrate is made, after first inside and outside set of molds is got togather, be placed on small vibrator,
Crystalline ceramics gel material feeding slurry is injected along cavity, by its mobility, slip is made full of mould shape cavity, in order to allow slurry to be more easy to
Full of inner chamber, also slurry can be made to have more preferable mobility by means of vibration；
E:Mould is positioned in baking oven together with slip, 40～60 DEG C are warming up to, slurry reaction is made and is solidified to form ceramic lamp tube
Base substrate；
F:6th, the demoulding is carried out after ceramic lamp tube base substrate has some strength, ceramic lamp tube base substrate is taken from punching block together with internal model
Go out, dried, the relative density of dried base substrate can reach 50～55%；
G:Ceramic lamp tube base substrate after by drying is put in atmosphere furnace together with internal model, carries out dumping, is connected in this stage inner membrance
To be decomposed exclusion with other Organic substances；
H:The ceramic lamp tube base substrate for excluding clean Organic substance is put in hydrogen furnace and is sintered, under 1750～1850 DEG C of high temperature
Exclude pore completely, burn till translucent ceramic lamp vessel.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those of ordinary skill in the art disclosed herein technical scope in, the change that can expect without creative work or
Replace, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Fixed protection domain is defined.
Claims (7)
1. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel, it is characterised in that methods described step is as follows：
A：With stainless steel mould as external mold, with polypropylene book wall hollow ellipsoids as internal model；
B：External mold and internal model are pressed after given size assembly, the cavity that between the two formation is matched with ceramic lamp tube shape；
C：Modulated gel material feeding is starched, the high-purity Al wherein containing grain growth inhibitor2O3The solid volume content of powder reaches
50～55, and add the dispersant for increasing mobility；
D：By in gel material feeding slurry injection cavity, the mobility that is starched by gel material feeding and applied vibration are allowed to full of whole empty
Chamber；
E：Internal model, external mold are put in people's baking oven together with gel material feeding slurry, is progressively heated to 50～60 DEG C, starch gel material feeding solidifying
Gu；
F：External mold is unloaded, and ceramic lamp tube base substrate is taken out in the lump together with inner membrance；
G：Ceramic lamp tube base substrate is carried out dumping biscuiting in oxidizing atmosphere stove, by the Organic substance in ceramic lamp tube base substrate together with
Inner core die decomposes discharge in the lump, obtains biscuit of ceramics；
H：Biscuit of ceramics is put in hydrogen furnace carries out high temperature sintering, obtains a monoblock type ceramic lamp tube.
2. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1, it is characterised in that described
Internal model is by polypropylene, polyethylene or to gather to this dioctyl phthalate ethylene glycol, is made in punching block using heating blow moiding method, internal model
Wall thickness is 0.05mm～0.2mm.
3. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1, it is characterised in that described
External mold is combined into by two halves, and external mold is provided with the inlet of injection gel material feeding slurry, can place multiple internal models inside the external mold.
4. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1, it is characterised in that described
Gel grout material is the high-purity Al containing grain growth inhibitor2O3Slurry, gelation material organic monomer are acrylamide, hand over
Connection agent is methylene-bisacrylamide, and initiator is Ammonium persulfate., and catalyst is N, N, N ', N '-tetramethylethylenediamine；Specifically
Formula proportion is：In every 1000 ml water, 120～200g of acrylamide is added, add 2～4g of methylene-bisacrylamide；Per
The N of 0.01～0.04g Ammonium persulfate .s and 0.003～0.007g, N, N is added in 100g slurries ', N '-tetramethylethylenediamine, and
Even dispersed with stirring.
5. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1 or 4, it is characterised in that
Contained grain growth inhibitor is MgO, La2O3Or Y2O3, the grain growth inhibitor accounts for Al2O3The 0.05 of gross weight quality～
0.3 %.
6. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1, it is characterised in that described
Dispersant is polyacrylic acid ammonia or citric acid ammonia, and its consumption is high-purity Al2O3The 0.2～1.5% of powder quality.
7. the method for a kind of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel according to right 1, it is characterised in that described
Applied vibration in step D, is that mould is placed on small vibrator to realize.
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| CN201610385446.XA CN106493829A (en) | 2016-06-03 | 2016-06-03 | A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel |
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| CN201610385446.XA CN106493829A (en) | 2016-06-03 | 2016-06-03 | A kind of method of monoblock type one-shot forming abnormal shape translucent ceramic lamp vessel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966709A (en) * | 2017-04-01 | 2017-07-21 | 广东工业大学 | A kind of preparation method of transparent alumina ceramics |
| CN109591503A (en) * | 2018-12-11 | 2019-04-09 | 山东理工大学 | The modified full information surface silica gel mould vanadium titanium tailing of ceramic powder infuses solidification forming method |
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|---|---|---|---|---|
| JPH03197352A (en) * | 1989-12-26 | 1991-08-28 | Kurimoto Ltd | Sinter-molded article having high strength and its production |
| CN1629102A (en) * | 2003-12-18 | 2005-06-22 | 山东理工大学 | Method for preparing Al#-[2]O#-[3] porous ceramic with high strength and high heat stability |
| CN101602598A (en) * | 2008-06-13 | 2009-12-16 | 黄沛恩 | A kind of preparation method of ceramic lamp tube |
| CN103922754A (en) * | 2014-03-12 | 2014-07-16 | 沈阳三友照明科技有限公司 | Manufacturing method of ceramic tube |
| CN105156956A (en) * | 2015-10-30 | 2015-12-16 | 深圳市圣诺光电科技有限公司 | LED flood light and manufacturing method thereof |
-
2016
- 2016-06-03 CN CN201610385446.XA patent/CN106493829A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03197352A (en) * | 1989-12-26 | 1991-08-28 | Kurimoto Ltd | Sinter-molded article having high strength and its production |
| CN1629102A (en) * | 2003-12-18 | 2005-06-22 | 山东理工大学 | Method for preparing Al#-[2]O#-[3] porous ceramic with high strength and high heat stability |
| CN101602598A (en) * | 2008-06-13 | 2009-12-16 | 黄沛恩 | A kind of preparation method of ceramic lamp tube |
| CN103922754A (en) * | 2014-03-12 | 2014-07-16 | 沈阳三友照明科技有限公司 | Manufacturing method of ceramic tube |
| CN105156956A (en) * | 2015-10-30 | 2015-12-16 | 深圳市圣诺光电科技有限公司 | LED flood light and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966709A (en) * | 2017-04-01 | 2017-07-21 | 广东工业大学 | A kind of preparation method of transparent alumina ceramics |
| CN106966709B (en) * | 2017-04-01 | 2020-08-11 | 广东工业大学 | Method for preparing transparent alumina ceramic through 3D printing based on photocuring molding |
| CN109591503A (en) * | 2018-12-11 | 2019-04-09 | 山东理工大学 | The modified full information surface silica gel mould vanadium titanium tailing of ceramic powder infuses solidification forming method |
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