CN102515715B - High-heat-resistance ceramic and preparation method thereof - Google Patents
High-heat-resistance ceramic and preparation method thereof Download PDFInfo
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- CN102515715B CN102515715B CN 201110341015 CN201110341015A CN102515715B CN 102515715 B CN102515715 B CN 102515715B CN 201110341015 CN201110341015 CN 201110341015 CN 201110341015 A CN201110341015 A CN 201110341015A CN 102515715 B CN102515715 B CN 102515715B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 16
- 229910000484 niobium oxide Inorganic materials 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 10
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 9
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 9
- HEHRHMRHPUNLIR-UHFFFAOYSA-N aluminum;hydroxy-[hydroxy(oxo)silyl]oxy-oxosilane;lithium Chemical compound [Li].[Al].O[Si](=O)O[Si](O)=O.O[Si](=O)O[Si](O)=O HEHRHMRHPUNLIR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004927 clay Substances 0.000 claims abstract description 9
- 229910052570 clay Inorganic materials 0.000 claims abstract description 9
- 229910052670 petalite Inorganic materials 0.000 claims abstract description 9
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 9
- 239000000454 talc Substances 0.000 claims abstract description 9
- 235000012222 talc Nutrition 0.000 claims abstract description 9
- 229910052623 talc Inorganic materials 0.000 claims abstract description 9
- 238000005189 flocculation Methods 0.000 claims abstract description 7
- 230000016615 flocculation Effects 0.000 claims abstract description 7
- 239000010453 quartz Substances 0.000 claims abstract description 7
- 229910052904 quartz Inorganic materials 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 14
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 9
- 229910052573 porcelain Inorganic materials 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 239000011651 chromium Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000002285 radioactive Effects 0.000 abstract description 4
- ZKATWMILCYLAPD-UHFFFAOYSA-N Niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 231100000765 Toxin Toxicity 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000003053 toxin Substances 0.000 abstract 1
- 239000011734 sodium Substances 0.000 description 12
- 230000035939 shock Effects 0.000 description 4
- 230000003000 nontoxic Effects 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H Sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- FWYVLGJBTZNHEM-UHFFFAOYSA-H Sodiumpolyphosphate Chemical compound [Na+].[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O FWYVLGJBTZNHEM-UHFFFAOYSA-H 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000019830 sodium polyphosphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Abstract
The invention relates to the field of ceramic products and particularly relates to a high-heat-resistance ceramic and a preparation method thereof. The high-heat-resistance ceramic is composed of the following components in weight percentage: 40-50 percent of petalite, 5-20 percent of quartz, 10-20 percent of kaolin, 3-10 percent of talcum, 10-40 percent of clay, 3-7 percent of waste pitchers, 0.3-1 percent of niobium oxide, 0.03-0.5 percent of dispersant and 0.1-0.5 percent of polyacrylamide. Compared with the prior art, the high-heat-resistance ceramic is formed by a reasonable formula, the grain composition is strictly controlled, and the content of K, Na, Fe, Ti and Li is strictly controlled by a flocculation method, so that the heat resistance of the ceramic can reach to be more than 800 DEG C; the dispersity and the stability of a ceramic material are improved by the dispersant; and meanwhile, the trace amount of the niobium oxide is added, thereby inhibiting the growth of material crystalline grains and reducing the expansion coefficient. The high-heat-resistance ceramic is excellent in heat impact resistance, can bear heat exchange at a temperature in a range of 800-20 DEG C for ten times and is not cracked, and has no toxin and harm; the dissolution amount of lead and chromium is zero and the content of radioactive elements meets the national standard.
Description
Technical field
The present invention relates to the ceramic product field, refer to a kind of high heat-resisting ceramic and preparation method thereof especially.
Background technology
The research of heat-stable ceramic is a difficult problem in domestic ceramics field always, and existing heat-stable ceramic goods have following shortcoming:
The one, heat resisting temperature can only reach 400-600 ℃ usually, and the human consumer is when using such ceramic, and usually food materials are fast ripe, and ceramic has also just split, and not only wastes food materials, also has great potential safety hazard;
The 2nd, thermal expansivity is higher, and thermal shock resistance is relatively poor, and heat exchange is broken easily, can not use than under the rigorous environment.
Summary of the invention
Main purpose of the present invention is to overcome the shortcoming of heat-stable ceramic goods resistance to elevated temperatures deficiency in the prior art, and a kind of high heat-resisting ceramic and preparation method thereof is provided.
The present invention adopts following technical scheme:
A kind of high heat-resisting ceramic is prepared from by following components in weight percentage:
Petalite 40-50%;
Quartzy 5-20%;
Kaolin 10-20%;
Talcum 3-10%;
Clay 10-40%;
Waste porcelain slag 3-7%;
Niobium oxides 0.3-1%;
Dispersion agent 0.03-0.5%;
Polyacrylamide 0.1-0.5%.
The weight percentage of K in this high heat-resisting ceramic, Na, Fe and Ti is respectively: K 0.5-1.2%; Na0.1-0.2%; Fe＜0.5%; Ti＜0.01%.
The weight percentage of Li in this high heat-resisting ceramic is 5-7%.
Described dispersion agent is a kind of or its combination in water glass, Sodium hexametaphosphate 99, sodium polyphosphate and the Sodium salts humic acids.
A kind of preparation method of high heat-resisting ceramic comprises the steps:
Step 1 is carried out picking of raw material to petalite, quartz, kaolin, talcum, clay, waste porcelain slag and niobium oxides, hard raw material crushing, removal of impurities;
Step 2 by the prescription batching, and is carried out grain composition;
Step 3 adds water slurrying, and the control solid content is 8-12%;
Step 4 adds the dispersion agent dispersed with stirring;
Step 5 adds polyacrylamide and carries out selective flocculation, removes throw out, and whether the percentage composition that tested K, Na, Fe and Ti account for solid content satisfies: K 0.5-1.2%, Na 0.1-0.2%, Fe＜0.5%, Ti＜0.01%; Then carry out step 8 if meet the demands, otherwise carry out step 6, seven;
Step 6, continuing to add the water management solid content is 8-12%, and the adding polyacrylamide carries out selective flocculation again, remove throw out, whether the percentage composition that tested K, Na, Fe and Ti account for solid content satisfies: K 0.5-1.2%, Na 0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 7, repeating step six, the percentage composition that accounts for solid content up to K, Na, Fe and Ti satisfies: K0.5-1.2%, Na 0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 8 is met the slurry of requirement, and precipitation obtains blank;
Step 9 is made ceramic body with blank, burn till ceramic product.
Firing temperature in the described step 9 is 1310-1320 ℃.
Firing time in the described step 9 is: normal temperature to 1310-1320 ℃ for 7-8h, wherein 800 ℃ keep 1.9-2.3h, 1310-1320 ℃ to 750 ℃ is 6-7h.
Grain composition in the described step 2 is as follows, and unit is weight percentage: 60-120 order 20-40%; 120-250 order 5-15%; 250-350 order 50-70%.
Compared with prior art, a kind of high heat-resisting ceramic of the present invention is owing to adopt rational prescription to form, and strict control grain composition, and the content of the strict control of employing flocculence K, Na, Fe, Ti and Li make its resistance toheat can reach more than 800 ℃; Adopt dispersion agent, improved the dispersed and stable of stupalith, the niobium oxides that adds trace simultaneously, suppress material grains and grow up, reduce the coefficient of expansion, thermal shock resistance is good, can anti-800-20 ℃ heat exchange ten times and do not split, and nontoxic, plumbous chromium stripping quantity is zero, and radioactive element content meets national standard.
Embodiment
Embodiment one
A kind of preparation method of high heat-resisting ceramic comprises the steps:
Step 1 is carried out picking of raw material to petalite, quartz, kaolin, talcum, clay, waste porcelain slag and niobium oxides, hard raw material crushing, removal of impurities;
Step 2, prescription batching as following weight percent: petalite 42%, quartz 12%, kaolin 15%, talcum 5%, clay 20%, waste porcelain slag 5% and niobium oxides 0.5%, and carry out grain composition: 60-120 order 30%, 120-250 order 10%, 325 order 60%;
Step 3 adds water slurrying, and the control solid content is 10%;
Step 4, the water glass dispersed with stirring of adding 0.3%;
Step 5 is divided several to add 0.2% polyacrylamide and is carried out selective flocculation, removes throw out, and the percentage composition that accounts for solid content up to K, Na, Fe and Ti satisfies: K 0.5-1.2%, Na 0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 6 is met the slurry of requirement, and precipitation obtains blank;
Step 7 is made the ceramic pot base substrate with blank, burn till the ceramic pot product, firing time is: normal temperature to 1310-1320 ℃ for 7.5h, wherein 800 ℃ keep 2h, 1310-1320 ℃ to 750 ℃ is 7h.
The ceramic pot product that makes is detected as can be known: can anti-800 ℃ of high temperature, and thermal expansivity is minimum, and thermal shock resistance is good, can anti-800-20 ℃ heat exchange ten times and do not split, and nontoxic, plumbous chromium stripping quantity is zero, and radioactive element content meets national standard.
Embodiment two
A kind of preparation method of high heat-resisting ceramic comprises the steps:
Step 1 is carried out picking of raw material to petalite, quartz, kaolin, talcum, clay, waste porcelain slag and niobium oxides, hard raw material crushing, removal of impurities;
Step 2, prescription batching as following weight percent: petalite 48%, quartz 14%, kaolin 12%, talcum 7%, clay 15%, waste porcelain slag 3% and niobium oxides 0.5%, and carry out grain composition: 60-120 order 30%, 120-250 order 10%, 250-325 order 60%;
Step 3 adds water slurrying, and the control solid content is 10%;
Step 4, the Sodium hexametaphosphate 99 dispersed with stirring of adding 0.24%;
Step 5 is divided several to add 0.26% polyacrylamide and is carried out selective flocculation, removes throw out, and the percentage composition that accounts for solid content up to K, Na, Fe and Ti satisfies: K 0.5-1.2%, Na 0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 6 is met the slurry of requirement, and precipitation obtains blank;
Step 7 is made the ceramic pot base substrate with blank, burn till the ceramic pot product, firing time is: normal temperature to 1310-1320 ℃ for 8h, wherein 800 ℃ keep 2h, 1310-1320 ℃ to 750 ℃ is 6.5h.
The ceramic pot product that makes is detected as can be known: can anti-800 ℃ of high temperature, and thermal expansivity is minimum, and thermal shock resistance is good, can anti-800-20 ℃ heat exchange ten times and do not split, and nontoxic, plumbous chromium stripping quantity is zero, and radioactive element content meets national standard.
Above-mentioned only is two embodiments of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (4)
1. the preparation method of a high heat-resisting ceramic is characterized in that comprising the steps:
Step 1 is carried out picking of raw material to petalite, quartz, kaolin, talcum, clay, waste porcelain slag and niobium oxides, hard raw material crushing, removal of impurities; The weight percent of each component is as follows: petalite 40-50%, quartzy 5-20%, kaolin 10-20%, talcum 3-10%, clay 10-20%, waste porcelain slag 3-7%, niobium oxides 0.3-1%, dispersion agent 0.03-0.5%, polyacrylamide 0.1-0.5%;
Step 2 by the prescription batching, and is carried out grain composition;
Step 3 adds water slurrying, and the control solid content is 8-12%;
Step 4 adds the dispersion agent dispersed with stirring;
Step 5 adds polyacrylamide and carries out selective flocculation, removes throw out, and whether the percentage composition that tested K, Na, Fe and Ti account for solid content satisfies: K0.5-1.2%, Na0.1-0.2%, Fe＜0.5%, Ti＜0.01%; Then carry out step 8 if meet the demands, otherwise carry out step 6, seven;
Step 6, continuing to add the water management solid content is 8-12%, and the adding polyacrylamide carries out selective flocculation again, remove throw out, whether the percentage composition that tested K, Na, Fe and Ti account for solid content satisfies: K0.5-1.2%, Na0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 7, repeating step six, the percentage composition that accounts for solid content up to K, Na, Fe and Ti satisfies: K0.5-1.2%, Na0.1-0.2%, Fe＜0.5%, Ti＜0.01%;
Step 8 is met the slurry of requirement, and precipitation obtains blank;
Step 9 is made ceramic body with blank, burn till ceramic product.
2. the preparation method of a kind of high heat-resisting ceramic as claimed in claim 1, it is characterized in that: the firing temperature in the described step 9 is 1310-1320 ℃.
3. the preparation method of a kind of high heat-resisting ceramic as claimed in claim 2, it is characterized in that: the firing time in the described step 9 is: normal temperature is 7-8h to 1310-1320 ℃, and wherein 800 ℃ keep 1.9-2.3h, and 1310-1320 ℃ to 750 ℃ is 6-7h.
4. the preparation method of a kind of high heat-resisting ceramic as claimed in claim 1, it is characterized in that: the grain composition in the described step 2 is as follows, and unit is weight percentage: 60-120 order 20-40%; 120-250 order 5-15%; 250-350 order 50-70%.
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| CN103044016A (en) * | 2012-12-14 | 2013-04-17 | 广东振通陶瓷有限公司 | High thermal resistant ceramic and preparation method thereof |
| CN103030384A (en) * | 2012-12-14 | 2013-04-10 | 潮州市威达陶瓷制作有限公司 | High-heat-resistance ceramic and preparation method thereof |
| CN108250801B (en) * | 2018-01-26 | 2020-08-07 | 西安文理学院 | Color material for overglaze color and preparation method thereof |
| CN113651596B (en) * | 2021-08-20 | 2022-11-11 | 江西帮企陶瓷股份有限公司 | Novel ceramic pot and preparation process thereof |
| CN115894052A (en) * | 2022-09-20 | 2023-04-04 | 宜兴市隆昌耐火材料有限公司 | Wear-resistant and fire-resistant new material for preheater outside kiln and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647673A (en) * | 2009-09-04 | 2010-02-17 | 袁勇 | Super heat resistant ceramic wok and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647673A (en) * | 2009-09-04 | 2010-02-17 | 袁勇 | Super heat resistant ceramic wok and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 浅谈透锂长石在耐热陶瓷炊具中的应用;陈坤怀 等;《山东陶瓷》;20111031;第34卷(第5期);第29-32页 * |
| 浅谈透锂长石在耐热陶瓷炊具中的应用;陈坤怀 等;《山东陶瓷》;20111031;第34卷(第5期);第29-32页3、5-8 * |
| 陈坤怀 等.浅谈透锂长石在耐热陶瓷炊具中的应用.《山东陶瓷》.2011,第34卷(第5期),第29-32页. |
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Denomination of invention: High-heat-resistance ceramic and preparation method thereof Effective date of registration: 20140430 Granted publication date: 20130821 Pledgee: Bank of China Limited by Share Ltd Dehua branch Pledgor: Fujian Dehua Jinlong Ceramics Co., Ltd. Registration number: 2014990000311 |
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Address after: Xun Zhen Peng Xiang Industrial Zone of Dehua County of Quanzhou City, Fujian province 362599 Dragon Patentee after: FUJIAN HUAXIA VAJRA TECHNOLOGY CO., LTD. Address before: Xun Zhen Peng Xiang Industrial Zone of Dehua County of Quanzhou City, Fujian province 362599 Dragon Patentee before: Fujian Dehua Jinlong Ceramics Co., Ltd. |
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