CN1044085C - Cooking white earthenware pot with high temp, stability - Google Patents
Cooking white earthenware pot with high temp, stability Download PDFInfo
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- CN1044085C CN1044085C CN 93105164 CN93105164A CN1044085C CN 1044085 C CN1044085 C CN 1044085C CN 93105164 CN93105164 CN 93105164 CN 93105164 A CN93105164 A CN 93105164A CN 1044085 C CN1044085 C CN 1044085C
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Abstract
The present invention relates to a cooking white earthen pot with high heat stability. The cooking white earthen pot is made from lithium oxide, silicon dioxide, alumina, magnesia, etc. The cooking white earthen pot is formed by reasonably selecting components, the strength of the pot body is enhanced, the cooking white earthen pot can be used for stewing, boiling, parching and frying under various fire sources, the water absorption is smaller than 10%, the heat stability is greatly superior to that of the common products, and the cooking white earthen pot is not cracked by one-time heat exchange at the temperature of 600 DEG C to 20 DEG C.
Description
The present invention relates to a kind of improved white sand pot for cooking, belong to the ceramic cooker technical field.
Marmite is commonly used a kind of in the cooker, but that common marmite only has is stewed, the function of boiling, when be used for frying, when fried, because a pot body self-temperature changes sharply, then very easily in breaking.The so-called heat-resisting white sand pot that existing market is sold, as the product on ground such as Handan, Hebei, Guangdong, Shi Wan, Yixing, Jiangsu and Japan, its heat-resistant stability is all below 300 degree.The heat-resisting white sand pot of Jiangxi development, its heat resisting temperature are that a heat exchange of 510 degree-20 degree is not split, and water-intake rate is used it for the cooking less than 0.5%, still has fracture phenomena, also needs further to improve its thermotolerance.
The objective of the invention is to develop a kind of new cooking white sand pot, require it to have higher heat resisting temperature, to satisfy the needs of various cooking methods.
The objective of the invention is by selecting low-expansion starting material, and choose reasonable proportioning and manufacture craft realize.
The little stupalith of thermal expansivity that the present invention adopts is Li
2O, AL
2O
3, SiO
2With MgO etc.
A basic technical scheme is:
A kind of cooking white sand pot of tool high thermal stability, it comprises pot and lid two portions, its basic improvements are: the material of making pot and lid mainly adopts silicon-dioxide, aluminum oxide, Lithium Oxide 98min, magnesium oxide, and the weight percent content of each component is: a. base substrate:
SiO
2: 54-62；
AL
2O
3: 27-34；
Li
2O: 2.6-3.0；
CaO: 1-1.5；
MgO: 0.9-1.2；
K
2O: 0.2-0.5；
Na
2O: 0.1-0.4；
Igloss: 6-10; B. glaze:
SiO
2: 60-67；
AL
2O
3: 14-18；
Li
2O: 2.5-3.0；
CaO: 3-5；
MgO: 4-5.2；
K
2O: 1-2；
Na
2O: 0.4-0.8；
ZnO： 4-6；
Igloss: 4-6.
The cooking white sand pot of above-mentioned tool high thermal stability, the described each component relevant raw material that in actual production, has drawn from respectively, wherein, SiO
2Introduce by quartz or triphane; AL
2O
3Introduce by feldspar, clay (comprising alkali spoil, camwood knag etc.); CaO is introduced by rhombspar; MgO is introduced by rhombspar or talcum; K
2O is introduced by feldspar; Na
2O is introduced by feldspar; LIO
2Introduce by triphane; ZnO adopts industrial zinc oxide etc.
Used triphane among the present invention adopts thinner particle diameter, and like this, its surface-area increases, and surface energy raises.In the heating sintering process, solid state reaction will take place in triphane and other raw material under lower temperature, generate more low bulk crystal, and not only the coefficient of expansion is lower for this solid solution attitude crystal, and each thermotropism expansible difference is less, has relaxed various intercrystalline boundary stresses.Along with the raising of material fineness, the coefficient of expansion is more little, and intensity is high more, and the thermal-shock resistance of material is big more, and promptly thermostability better.
The invention will be further described below with reference to embodiment.
Fig. 1 is a product appearance synoptic diagram of the present invention;
Fig. 2 is the product manufacture schema;
Fig. 3 is the glaze manufacturing process flow diagram.
The white sand pot is pressed following technology manufacturing:
The above-mentioned raw materials weighing is good, and concerning base substrate, material, (grinding) ball, water ratio are 1: 1.6: 0.85, particle fineness, the surplus 6-9% of 10000-hole sieve; Water content is 19-20% to roll forming, and wheel is shaped to 23-24%, and injection forming is 30-32%, concerning glaze, and the glaze slip fineness, the surplus 0.03-0.05% of 10000-hole sieve, glaze slip proportion is controlled between the 1.30-1.32.
Technical process is:
Base substrate: raw material → pulverizing or calcination → batching → ball milling be in small, broken bits → dehydration refining mud → moulding → drying → glazing → burn till.
Glaze: picking of raw material → batching → ball milling is in small, broken bits → and standby.
The white sand pot is reasonably controlled firing temperature in sintering process, the ceramic body density is increased, and solid state reaction is abundant, generates more low bulk crystal, and makes residual quartz reduce to minimum, and the result increases blank strength, Heat stability is good.But if temperature is too high, though the density of base substrate increased,, in glassy phase, also fused into the crystal of a part of low bulk, cause strength degradation and thermostability variation.Therefore, its temperature should be controlled at 1280-1320 ℃ and is advisable.
To glaze thirty years of age, also to press principle of identity and handle, its temperature should be controlled between 1280-1320 ℃.
The present invention has added the mineral that contain MgO in starting material, do like this to reduce cost, and obtains the lithium silicate magnesia porcelain material of relatively low thermel expansion coefficient and higher-strength.
Several formulation Example of the present invention is:
Base substrate: SiO
2Al
2O
3Li
2O CaO MgO K
2O Na
2O igloss 1 54.5 33.5 2.7 1.3 1.1 0.5 0.4 62 54.4 31.2 3.0 1.3 1.1 0.4 0.1 8.53 56.7 28.6 2.9 1.1 1.2 0.3 0.1 9.1
Glaze: SiO
2Al
2O
3CaO MgO K
2O Na
2O Li
2O ZnO igloss 1 60.7 16.74 3.25 4.36 1.27 0.48 2.55 4.80 5.852 63.0 14.20 4.02 4.86 1.23 0.51 2.66 5.40 4.123 62.7 215.80 3.85 4.50 1.06 0.60 2.90 4.05 4.52
By the white sand pot that the present invention makes, pot body intensity height, glaze is smooth, can be used for stewing, boil, fry in shallow oil, fry, exploding under the various burning things which may cause a fire disaster, and water-intake rate is less than 10%, and thermal stability is better than usual production greatly, reaches a 600-20 ℃ of heat exchange and does not split.
Claims (3)
1. the cooking white sand pot of a tool high thermal stability, it comprises pot and lid two portions, it is characterized in that, and the material of making pot and lid mainly adopts silicon-dioxide, aluminum oxide, Lithium Oxide 98min, magnesium oxide, and the weight percent content of each component is: a. base substrate:
SiO
2: 54-62；
AL
2O
3: 27-34；
Li
2O: 2.6-3.0；
CaO: 1-1.5；
MgO: 0.9-1.2；
K
2O: 0.2-0.5；
Na
2O: 0.1-0.4；
Igloss: 6-10; B. glaze:
SiO
2: 60-67；
AL
2O
3: 14-18；
Li
2O: 2.5-3.0；
CaO: 3-5；
MgO: 45.2；
K
2O: 1-2；
Na
2O: 0.4-0.8；
ZnO: 4-6；
Igloss: 4-6.
2. cooking white sand pot according to claim 1 is characterized in that described SiO
2Introduce by quartz or triphane; AL
2O
3Introduce by feldspar or clay; CaO is introduced by rhombspar; MgO is introduced by rhombspar or talcum; K
2O is introduced by feldspar; Na
2O is introduced by feldspar; LIO
2Introduce by triphane; ZnO adopts industrial zinc oxide.
3. cooking white sand pot according to claim 2 is characterized in that described AL
2O
3Also can introduce by alkali spoil, camwood knag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105164 CN1044085C (en) | 1993-04-26 | 1993-04-26 | Cooking white earthenware pot with high temp, stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105164 CN1044085C (en) | 1993-04-26 | 1993-04-26 | Cooking white earthenware pot with high temp, stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094269A CN1094269A (en) | 1994-11-02 |
| CN1044085C true CN1044085C (en) | 1999-07-14 |
Family
ID=4985597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105164 Expired - Fee Related CN1044085C (en) | 1993-04-26 | 1993-04-26 | Cooking white earthenware pot with high temp, stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044085C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647673B (en) * | 2009-09-04 | 2011-03-23 | 袁勇 | Super heat resistant ceramic wok and manufacturing method thereof |
| CN102040374A (en) * | 2009-10-19 | 2011-05-04 | 泉州坤达礼品有限公司 | Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof |
| CN102277089B (en) * | 2011-05-27 | 2013-06-12 | 湖北省烟叶公司 | High temperature binder for inorganic non-metallic materials used in bulk curing barn and preparation method thereof |
| CN103183498B (en) * | 2013-04-10 | 2014-10-29 | 刘华君 | Alumina-magnesia marmite with high thermal shock resistance and manufacturing method thereof |
| CN104529410A (en) * | 2014-12-06 | 2015-04-22 | 成延栓 | Ceramic body with low expansion coefficient, and production method thereof |
| CN104944912B (en) * | 2015-06-19 | 2017-10-20 | 广东易成陶瓷实业有限公司 | A kind of formula of white half porcelain of environment-friendly type energy-saving low temperature and preparation method thereof |
| CN105130387A (en) * | 2015-08-18 | 2015-12-09 | 邱培煌 | Dry burning-resistant ceramic, and preparation method thereof |
| CN106187116A (en) * | 2016-07-12 | 2016-12-07 | 刘付明 | The preparation method of a kind of activated water health preserving pot and activated water health preserving pot |
| CN106242515A (en) * | 2016-08-08 | 2016-12-21 | 平定莹玉陶瓷有限公司 | A kind of marmite and preparation method thereof |
| CN108314416B (en) * | 2018-04-08 | 2021-03-19 | 姜海青 | Heat-resistant ceramic health earthen pot |
| CN115849889A (en) * | 2021-09-23 | 2023-03-28 | 佛山市顺德区美的电热电器制造有限公司 | Ceramic material and preparation method thereof, heating assembly and cooking utensil |
-
1993
- 1993-04-26 CN CN 93105164 patent/CN1044085C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094269A (en) | 1994-11-02 |
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