CN106336197A - Saggar for sintering of electroceramic materials and preparation method thereof - Google Patents
Saggar for sintering of electroceramic materials and preparation method thereof Download PDFInfo
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- CN106336197A CN106336197A CN201610710995.XA CN201610710995A CN106336197A CN 106336197 A CN106336197 A CN 106336197A CN 201610710995 A CN201610710995 A CN 201610710995A CN 106336197 A CN106336197 A CN 106336197A
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- powder
- saggar
- ceramic material
- fused alumina
- white fused
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- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D5/0006—Composite supporting structures
- F27D5/0012—Modules of the sagger or setter type; Supports built up from them
-
- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
Abstract
The invention relates to a saggar for sintering of electroceramic materials and a preparation method thereof and belongs to the field of electroceramic sintering tools. The saggar for sintering of electroceramic materials is prepared from alumina powder, white kaolin powder, yellow kaolin powder, talcum powder, green coke powder, clay powder, white corundum, quartz, iolite and a plasticizer, has good thermal shock effect, and is low-cost. According to the saggar, product uniformity and stability can be maintained in batch production.
Description
Technical field
The present invention relates to a kind of electron ceramic material is fired with saggar and preparation method thereof, belong to electronic ceramics firing tool
Field.
Background technology
Saggar is mainly used in electronic ceramics high-temperature firing, and its function is to load electronic ceramics material material at high temperature sintering, burns
Junction temperature is typically at 1000 DEG C -1400 DEG C.Existing saggar main component is the mullite or high aluminium material based on al2o3.By
In the reason aluminium oxide itself thermal shock effect difference, al2o3 content higher thermal shock number of times is fewer.Fire electron ceramic material temperature one
As in 1000 DEG C～1400 DEG C of the highest temperature, room temperature is heated to highest temperature used time 6～9h, is incubated 3～6h, drops to room temperature from the highest temperature
6～9h, warming and cooling rate is fast, now uses saggar because of anti-rapid heat cycle poor performance, and easily ftractures under high temperature.Thus bringing makes
Low with the life-span, thermal shock effect is poor, easily ftractures at high temperature, causes to fill in kiln phenomenon, the problems such as breakage rate is high.
When adopting aluminium oxide as primary raw material to improve product resisted shrinkage and thermal shock resistance and heat resistance, aluminium oxide
Density typically in 2.9kg/m3, use aluminium oxide by this density for a long time, energy consumption can be caused very high, energy waste.
Adopt midge or hydraulic press pressing mode molding existing saggar more, because product wall is different with base thickness degree, and be subject to
Power is different, causes whole product form uneven.Deposit just more weak part, crack resistance is poor, and when producing in batches, product
Differentiation is big, and quality is unstable.
Content of the invention
Present invention aim at providing a kind of electron ceramic material to fire with saggar and preparation method thereof, thermal shock effect is good,
Low cost, and product uniformity and stable saggar can be kept in batch production.
Electron ceramic material of the present invention is fired and is used saggar, by alumina powder, white kaolinic powder, yellow Kaolin powder,
Pulvis Talci, coking powder, clay powder, white fused alumina, quartz, cordierite and plasticizer are made.
Described electron ceramic material is fired and is used saggar, and the white fused alumina being used is white fused alumina 36 mesh, white fused alumina 60 mesh, white
Corundum 80 mesh and white fused alumina 1-0mm.
Described electron ceramic material is fired and is used saggar, and the quartz components being used include quartzy 1-0.5mm, quartzy 0.5-
0.2mm and quartzy 0.2-0.1mm.
Described electron ceramic material is fired and is used saggar, and cordierite is cordierite 1-0mm.
Described electron ceramic material is fired and is used saggar, and plasticizer is carboxymethyl cellulose.
Described electron ceramic material is fired and is used saggar, and raw material is alumina powder 0.05-25 part, white kaolinic powder 0.05-
30 parts, yellow Kaolin powder 0.05-30 part, Pulvis Talci 0-50 part, coking powder 0.05-30 part, clay powder 0.05-30 part, white fused alumina
36 mesh 0-40 parts, white fused alumina 60 mesh 0-40 part, white fused alumina 80 mesh 0-40 part, white fused alumina 1-0mm 0-40 part, quartzy 1-0.5mm0-
40 parts, quartzy 0.5-0.2mm 0-40 part, quartzy 0.2-0.1mm 0-40 part, cordierite 1-0mm0-40 part and plasticizer 0-10
Part.
Described electron ceramic material is fired and is used saggar, and raw material also includes plate diamond spar powder.
Described electron ceramic material is fired and is used saggar, and the consumption of plate diamond spar powder is 0-30 part
Electron ceramic material of the present invention fires the preparation method with saggar, method particularly includes:
(1) raw material is filtered iron tramp repeatedly through magnetic separator, until inspection iron tramp content is up to standard；
(2) by alumina powder, white kaolinic powder, yellow Kaolin powder, Pulvis Talci, coking powder, clay powder and water by described
Ratio mixing uniformly slip, mixing time is 1-4h；
(3) by the slurry mixing, remove iron tramp by way of magnetic separation, the slurry after iron impurity is filtered
Water, forms mud cake, and the moisture of mud cake reaches in the range of 15%～30%；
(4) by mud cake, white fused alumina can be separately added into by client's use condition difference, quartz, cordierite granule carry out vacuum
Kneading 2-6 time, forms mud rod or mud bar；
(5) mud having kneaded rod or mud bar are cut into suitably sized, are placed in mould will half be become with roller head machine
Product molding；
(6) by the semi-finished product the having produced demoulding, repaired biscuit post-drying；
(7) load in kiln after semi-finished product are dried and burn till.
Described electron ceramic material fires the preparation method with saggar, and step removes ferrum in (3) by way of magnetic separation
The concrete grammar of impurity is, installs bar magnet in the material road of conveying slip, and when slip flows through bar magnet, bar magnet is by the ferrum in slip
Impurity removal.
Described electron ceramic material fires the preparation method with saggar, and step removes ferrum in (3) by way of magnetic separation
The concrete grammar of impurity is to enter slurry pipeline transport in wet magnetic separator, go iron impurity by wet magnetic separator.
Described electron ceramic material fires the preparation method with saggar, and blender is by mud cake and white fused alumina, quartz and violet
Cordierite is together put into blender and is mixed, and exports soil kneader by blender again after mixing.
Described electron ceramic material fires the preparation method with saggar, loads in kiln and burns till, fire after semi-finished product drying
1290 DEG C 1400 DEG C of temperature, and it is incubated 5-10h.
Described electron ceramic material fires the preparation method with saggar, and mould is gypsum mold, the one-tenth of this gypsum mold
Distribution ratio is Gypsum Fibrosum powder and water is mixed with 1:1～1.5 ratio.
Described electron ceramic material fires the preparation method with saggar, and mould is alternatively the existing punching block using on the market
Tool.
The present invention is compared with prior art had the beneficial effect that
Electron ceramic material of the present invention is fired with saggar and preparation method thereof, is different from prior art and distinguishes in advance
The cordierite of synthesis and mullite, then by cordierite and mullite mixed-forming, this kind of combination, do not improve and use
Effect.The application directly fires a kind of new material of generation, i.e. cordierite in high temperature environments using provided raw material and proportioning
Mullite, mutually evenly, color and generation are mutually also evenly for the cordierite-mullite of generation.Thermal coefficient of expansion is little simultaneously, because
And it has high thermal shock resistance.
Employ and carry out multiple mud refining with vacuum pugmill, make pug evenly, and be effectively increased the toughness of product.
Add white fused alumina, quartz and cordierite grains during mud refining, can effectively improve product thermal shock performance.
Described roll forming is the rapid-result type of rotation, can make product uniformity more preferably, promote up and down evenly, weak part is effective
Reduce, improve rupture strength.
Gypsum mold selected by mould, and its proportioning is Gypsum Fibrosum powder and water 1:1～1.5 ratio is mixed with, and has stronger suction
Aqueouss, can make product rapid condensation embark on journey, stripping rate greatly shortens, 1-2h just can the demoulding, existing production technology demoulding time
5h about, make herein described technical scheme shorten for 2/3 time, so that the production cycle is shortened, improve production efficiency.
Cordierite-mullite bulk density 1.8kg/m3 generating is lighter by 1/ than the existing product with al2o3 as main component
3, energy efficient during use.
Specific embodiment
Below electron ceramic material is fired and is described further with saggar embodiment:
Embodiment 1: electron ceramic material of the present invention is fired and used saggar, and the composition of raw material and proportioning are: aluminium oxide
14 parts of powder, 20 parts of white kaolinic powder, yellow 20 parts of Kaolin powder, 15 parts of Pulvis Talci, 15 parts of coking powder, 10 parts of clay powder, white fused alumina
36 mesh 20, white fused alumina 60 mesh 20,20 parts of white fused alumina 80 mesh, 20 parts of white fused alumina 1-0mm, quartzy 15 parts of 1-0.5mm, quartzy 0.5-
16 parts of 0.2mm, quartzy 30 parts of 0.2-0.1mm, 20 parts of cordierite 1-0mm and 4 parts of plasticizer.
Described electron ceramic material is fired and is used saggar, and plasticizer is carboxymethyl cellulose.
Embodiment 2: on the architecture basics described in embodiment 1, raw material also includes plate diamond spar powder, the use of plate diamond spar powder
Measure as 15 parts.The heat-resisting ability of saggar can be improved.
Below electron ceramic material is fired and is described further with the preparation method of saggar:
Embodiment 1: electron ceramic material of the present invention fires the preparation method with saggar, method particularly includes:
(1) all raw materials are required for removing impurity iron through magnetic separator, check the content of impurity iron after magnetic separation, underproof
Magnetic separator magnetic separation again need to be entered, until inspection is qualified；
(2) alumina powder, white kaolinic powder, yellow Kaolin powder, Pulvis Talci, coking powder, clay powder and water are mixed in proportion
Close, put into mixing 3 hours in batch mixer, until mixing uniformly slip；
(3) by the slurry mixing, put into bar magnet in material road, slurry trickles above, make bar magnet remove the ferrum in slip
Impurity；
(4) slurry after iron impurity is injected drainage in mud press by plunger displacement pump, make slip form mud cake, and mud
The moisture of cake reaches in the range of 20%；
(5) when the mud cake of drainage, white fused alumina, quartz and cordierite directly can be used or store one section by different formula
Between after use, mud cake is placed in vacuum pugmill vacuum and kneads 4 times, form mud rod or mud bar；
(6) mud having kneaded rod or mud bar are cut into suitably sized, be placed in mould and use roller head machine molding
Semi-finished product.
(7) by the semi-finished product the having produced demoulding, repaired biscuit post-drying；
(8) load in kiln after semi-finished product are dried and burn till, 1290 DEG C 1400 DEG C of the highest temperature, it is incubated 5-10h.
Embodiment 2: on the architecture basics described in embodiment 1, described electron ceramic material fires the preparation with saggar
Method, the concrete grammar removing iron tramp in step (3) by way of magnetic separation is to install magnetic in the material road of conveying slip
Rod, when slip flows through bar magnet, the iron tramp in slip is removed by bar magnet.
Embodiment 3: on the architecture basics described in embodiment 1, described electron ceramic material fires the preparation with saggar
Method, the concrete grammar removing iron tramp in step (3) by way of magnetic separation is to enter in wet magnetic separator by slurry pipeline transport,
Iron impurity is gone by wet magnetic separator.
Embodiment 4: on the architecture basics described in embodiment 2 or 3, described electron ceramic material fires the system with saggar
Preparation Method, mud cake is together put into blender and is mixed with white fused alumina, quartz and cordierite granule by blender, after mixing again
Soil kneader is exported by blender.
Described electron ceramic material fires the preparation method with saggar, loads in kiln and burns till, fire after semi-finished product drying
1290 DEG C 1400 DEG C of temperature, and it is incubated 5-10h.
Embodiment 5: on the architecture basics of embodiment 4, described electron ceramic material fires the preparation method with saggar,
Mould is gypsum mold, and the composition proportion of this gypsum mold is Gypsum Fibrosum powder and water is mixed with 1:1～1.5 ratio.
Embodiment 5: on the architecture basics of embodiment 4, described electron ceramic material fires the preparation method with saggar,
Mould is steel die.
Claims (10)
1. a kind of electron ceramic material fire with saggar it is characterised in that by alumina powder, white kaolinic powder, yellow Kaolin powder,
Pulvis Talci, coking powder, clay powder, white fused alumina, quartz, cordierite and plasticizer are made.
2. electron ceramic material according to claim 1 fires with saggar the white fused alumina composition it is characterised in that being used
Including white fused alumina 36 mesh, white fused alumina 60 mesh, white fused alumina 80 mesh and white fused alumina 1-0mm.
3. electron ceramic material according to claim 2 fires with saggar the quartz components bag it is characterised in that being used
Include quartzy 1-0.5mm, quartzy 0.5-0.2mm and quartzy 0.2-0.1mm.
4. electron ceramic material according to claim 3 is fired with saggar it is characterised in that cordierite is cordierite 1-
0mm.
5. electron ceramic material according to claim 4 is fired with saggar it is characterised in that plasticizer is carboxymethyl cellulose
Element.
6. the electron ceramic material according to claim 4 or 5 is fired with saggar it is characterised in that raw material is alumina powder
0.05-25 part, white kaolinic powder 0.05-30 part, yellow Kaolin powder 0.05-30 part, Pulvis Talci 0-50 part, coking powder 0.05-30
Part, clay powder 0.05-30 part, white fused alumina 36 mesh 0-40 part, white fused alumina 60 mesh 0-40 part, white fused alumina 80 mesh 0-40 part, white fused alumina
1-0mm 0-40 part, quartzy 1-0.5mm0-40 part, quartzy 0.5-0.2mm 0-40 part, quartzy 0.2-0.1mm 0-40 part, violet are blue or green
Stone 1-0mm0-40 part and plasticizer 0-10 part.
7. a kind of described electron ceramic material as arbitrary in claim 1-6 fire with the preparation method of saggar it is characterised in that
Method particularly includes:
(1) raw material is filtered iron tramp repeatedly through magnetic separator, until inspection iron tramp content is up to standard；
(2) by alumina powder, white kaolinic powder, yellow Kaolin powder, Pulvis Talci, coking powder, clay powder and water in a ratio
Mixing uniformly slip, mixing time is 1-4h；
(3) by the slurry mixing, remove iron tramp by way of magnetic separation, the slurry after iron impurity is carried out drainage, shape
Become mud cake, and the moisture of mud cake reaches in the range of 15%～30%；
(4) mud cake, white fused alumina, quartz, cordierite granule are carried out vacuum and knead 2-6 time, form mud rod or mud bar；
(5) mud having kneaded rod or mud bar are cut into suitably sized, are placed into mould interior roller head machine and semi-finished product are become
Type；
(6) by the semi-finished product the having produced demoulding, repaired biscuit post-drying；
(7) load in kiln after semi-finished product are dried and burn till.
8. electron ceramic material according to claim 7 is fired with the preparation method of saggar it is characterised in that step (3)
In to remove the concrete grammar of iron tramp by way of magnetic separation be to install bar magnet in the material road of conveying slip, flow through in slip
During bar magnet, the iron tramp in slip is removed by bar magnet.
9. electron ceramic material according to claim 7 is fired with the preparation method of saggar it is characterised in that blender will
Mud cake is together put into blender and is mixed with white fused alumina, quartz and cordierite, after mixing, then exports mud refining by blender
Machine.
10. electron ceramic material according to claim 9 is fired with the preparation method of saggar it is characterised in that semi-finished product
Load in kiln after drying and burn till, be fired to 1290 DEG C 1400 DEG C of maximum temperature, and be incubated 5-10h.
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| CN201610710995.XA CN106336197B (en) | 2016-08-24 | 2016-08-24 | Electron ceramic material is fired with saggar and preparation method thereof |
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| CN106336197B CN106336197B (en) | 2019-01-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107903041A (en) * | 2017-10-25 | 2018-04-13 | 湖北亿佳欧电子陶瓷股份有限公司 | A kind of saggar and preparation method thereof |
| CN109574640A (en) * | 2019-01-25 | 2019-04-05 | 山东铭特陶瓷材料有限公司 | The preparation method of high-temperature corundum mullite crucible |
| CN109627021A (en) * | 2019-01-25 | 2019-04-16 | 山东铭特陶瓷材料有限公司 | The preparation method of cordierite crucible |
| CN110818398A (en) * | 2018-08-09 | 2020-02-21 | 山东莱科陶瓷材料有限公司 | Sagger for high-temperature firing and preparation method thereof |
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| CN105347805A (en) * | 2014-08-21 | 2016-02-24 | 青岛炜烨锻压机械有限公司 | Production of fireproof material for plate pushing kiln |
| CN105669223A (en) * | 2016-01-08 | 2016-06-15 | 浙江长兴久鑫耐火材料有限公司 | Sagger |
| CN105693227A (en) * | 2016-01-08 | 2016-06-22 | 浙江长兴久鑫耐火材料有限公司 | Novel saggar |
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| CN1090561A (en) * | 1993-12-11 | 1994-08-10 | 楼道孝 | Low expansion anti-thermal vibration physic ceramics and method for making |
| CN1432547A (en) * | 2002-01-15 | 2003-07-30 | 余斌武 | Low-expansion, heat shock-resisting and acidproof ceramic material |
| CN105347805A (en) * | 2014-08-21 | 2016-02-24 | 青岛炜烨锻压机械有限公司 | Production of fireproof material for plate pushing kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107903041A (en) * | 2017-10-25 | 2018-04-13 | 湖北亿佳欧电子陶瓷股份有限公司 | A kind of saggar and preparation method thereof |
| CN107903041B (en) * | 2017-10-25 | 2021-01-26 | 湖北亿佳欧电子陶瓷股份有限公司 | Casket-like bowl and preparation method thereof |
| CN110818398A (en) * | 2018-08-09 | 2020-02-21 | 山东莱科陶瓷材料有限公司 | Sagger for high-temperature firing and preparation method thereof |
| CN109574640A (en) * | 2019-01-25 | 2019-04-05 | 山东铭特陶瓷材料有限公司 | The preparation method of high-temperature corundum mullite crucible |
| CN109627021A (en) * | 2019-01-25 | 2019-04-16 | 山东铭特陶瓷材料有限公司 | The preparation method of cordierite crucible |
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| Publication number | Publication date |
|---|---|
| CN106336197B (en) | 2019-01-11 |
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