CN110642592A - Heat-resistant pottery and manufacturing method thereof - Google Patents
Heat-resistant pottery and manufacturing method thereof Download PDFInfo
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- CN110642592A CN110642592A CN201910938408.6A CN201910938408A CN110642592A CN 110642592 A CN110642592 A CN 110642592A CN 201910938408 A CN201910938408 A CN 201910938408A CN 110642592 A CN110642592 A CN 110642592A
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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
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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
- C04B33/24—Manufacture of porcelain or white ware
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses heat-resistant pottery, which comprises the following components in percentage by weight: 46 to 49.5 percent of silicon dioxide, 35.5 to 38.5 percent of aluminum oxide, 0 to 5 percent of ferric oxide, 0 to 2 percent of calcium oxide, 0 to 2 percent of magnesium oxide, 0.8 to 1.8 percent of potassium oxide, 0 to 1.5 percent of sodium oxide, 0 to 2 percent of titanium dioxide and 7 to 9 percent of loss on ignition. The invention also discloses a manufacturing method of the heat-resistant pottery, and the heat-resistant pottery is characterized in that aluminum oxide and silicon dioxide in the pottery blank are combined with each other in the high-temperature firing at the temperature of 1145-1230 ℃ to generate mullite with thermal stability, so that the thermal stability of the product after firing is improved, the pottery finished product can be used for open fire heating cooking, and the service life is prolonged.
Description
Technical Field
The invention relates to the field of pottery, in particular to heat-resistant pottery and a manufacturing method thereof.
Background
The pottery is made of clay or pottery clay through kneading, shaping and baking.
However, the heat resistance of the existing pottery products cannot meet the requirement, and the pottery products have cracks in the high-temperature heating process, so that the cracks can be further reflected when the pottery products are used for open-fire heating cooking, and the service life of the pottery products is reduced, so the invention provides the heat-resistant pottery products and the manufacturing method thereof.
Disclosure of Invention
The present invention is directed to a method for manufacturing heat-resistant pottery, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the heat-resistant pottery comprises the following components in percentage by weight: 46 to 49.5 percent of silicon dioxide, 35.5 to 38.5 percent of aluminum oxide, 0 to 5 percent of ferric oxide, 0 to 2 percent of calcium oxide, 0 to 2 percent of magnesium oxide, 0.8 to 1.8 percent of potassium oxide, 0 to 1.5 percent of sodium oxide, 0 to 2 percent of titanium dioxide and 7 to 9 percent of loss on ignition.
The further scheme of the invention is as follows: comprises the following components in percentage by weight: 48.50% of silicon dioxide, 36.50% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition.
The invention further comprises the following scheme: comprises the following raw materials: guizhou soil, Longchang soil, quartz sand and Yongchuan soil.
The invention further comprises the following scheme: the composite material comprises the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
The method for manufacturing the heat-resistant pottery comprises the following steps:
1) mixing silicon dioxide, aluminum oxide, ferric oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide and titanium dioxide according to a ratio, and stirring and grinding by using a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln for heating roasting treatment, and cooling treatment after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
As a still further scheme of the invention: in the step 2), the mixture A is filtered by the 250-mesh screen, and residues reach 5% -35%.
As a still further scheme of the invention: in the step 4), the maximum temperature of the temperature-raising roasting treatment is between 1145 ℃ and 1230 ℃.
As a still further scheme of the invention: in the step 4), the heat preservation time of the high-temperature section of the temperature-rising roasting is not less than 30 minutes.
Compared with the prior art, the invention has the beneficial effects that: the aluminum oxide and the silicon dioxide in the pottery blank body B are mutually combined in high-temperature firing at the temperature of more than 1000 ℃ to generate mullite with thermal stability, so that the product has certain thermal stability after firing; minerals such as potassium oxide, sodium oxide, magnesium oxide and the like in the mixture A can better promote aluminum oxide and silicon dioxide to be combined to generate more mullite in a high-temperature molten state; the ceramic blank B with the water absorption rate of more than 3% is obtained by controlling the firing time and the firing temperature of the ceramic blank B, the good water absorption rate can delay the heating speed of the ceramic blank B in the heating process, and the ceramic blank B is prevented from cracking due to stress generated by too fast temperature change; the expansion space and buffer are enough for the expansion of the pottery embryo body B in the heating process by controlling the size of the particles in the formula, so that the expansion stress in the heating process is greatly reduced.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1
The heat-resistant pottery comprises the following components in percentage by weight: 46% of silicon dioxide, 35.5% of aluminum oxide, 1.2% of ferric oxide, 1% of calcium oxide, 2% of magnesium oxide, 1.8% of potassium oxide, 1.5% of sodium oxide, 2% of titanium dioxide and 9% of loss on ignition. The heat-resistant pottery comprises the following raw materials: guizhou soil, Longchang soil, quartz sand and Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residues reach 5%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at the temperature of 1145 ℃, keeping the temperature of the high-temperature section of the heating roasting for 30 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 2
The heat-resistant pottery comprises the following components in percentage by weight: 49.5 percent of silicon dioxide, 38.5 percent of aluminum oxide, 0.5 percent of ferric oxide, 2 percent of calcium oxide, 0.5 percent of magnesium oxide, 0.8 percent of potassium oxide, 0.5 percent of sodium oxide, 0.7 percent of titanium dioxide and 7 percent of loss on ignition. The heat-resistant pottery comprises the following raw materials: guizhou soil, Longchang soil, quartz sand and Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residues reach 5%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at the temperature of 1145 ℃, keeping the temperature of the high-temperature section of the heating roasting for 30 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 3
The heat-resistant pottery comprises the following components in percentage by weight: 46% of silicon dioxide, 35.5% of aluminum oxide, 5% of ferric oxide, 1.7% of calcium oxide, 1% of magnesium oxide, 1.8% of potassium oxide, 1% of sodium oxide, 1% of titanium dioxide and 7% of loss on ignition. The heat-resistant pottery comprises the following raw materials: guizhou soil, Longchang soil, quartz sand and Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residues reach 5%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at the temperature of 1145 ℃, keeping the temperature of the high-temperature section of the heating roasting for 30 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 4
The heat-resistant pottery comprises the following components in percentage by weight: 48.50% of silicon dioxide, 36.50% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition. The heat-resistant pottery comprises the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residues reach 5%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at the temperature of 1145 ℃, keeping the temperature of the high-temperature section of the heating roasting for 30 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 5
The heat-resistant pottery comprises the following components in percentage by weight: 48.50% of silicon dioxide, 36.50% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition. The heat-resistant pottery comprises the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residues reach 15%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at the temperature of 1165 ℃ for 35 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 6
The heat-resistant pottery comprises the following components in percentage by weight: 48.50% of silicon dioxide, 36.50% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition. The heat-resistant pottery comprises the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen sieve, wherein the filtered residue reaches 25%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, carrying out heating roasting treatment at 1185 ℃, keeping the temperature of a high-temperature section of the heating roasting for 40 minutes, and cooling after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
Example 7
The heat-resistant pottery comprises the following components in percentage by weight: 48.50% of silicon dioxide, 36.50% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition. The heat-resistant pottery comprises the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
In this embodiment, the method for manufacturing the heat-resistant pottery includes the following steps:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh sieve, wherein the filtered residues reach 35%;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln, performing heating roasting treatment at 1230 ℃, wherein the heating roasting time is 45 minutes, and performing cooling treatment after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
The working principle of the invention is as follows: the aluminum oxide and the silicon dioxide in the pottery blank body B are mutually combined in high-temperature firing at the temperature of more than 1000 ℃ to generate mullite with thermal stability, so that the product has certain thermal stability after firing; minerals such as potassium oxide, sodium oxide, magnesium oxide and the like in the mixture A can better promote aluminum oxide and silicon dioxide to be combined to generate more mullite in a high-temperature molten state; the ceramic blank B with the water absorption rate of more than 3% is obtained by controlling the firing time and the firing temperature of the ceramic blank B, the good water absorption rate can delay the heating speed of the ceramic blank B in the heating process, and the ceramic blank B is prevented from cracking due to stress generated by too fast temperature change; the expansion space and buffer are enough for the expansion of the pottery embryo body B in the heating process by controlling the size of the particles in the formula, so that the expansion stress in the heating process is greatly reduced.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. The heat-resistant pottery is characterized by comprising the following components in percentage by weight: 46 to 49.5 percent of silicon dioxide, 35.5 to 38.5 percent of aluminum oxide, 0 to 5 percent of ferric oxide, 0 to 2 percent of calcium oxide, 0 to 2 percent of magnesium oxide, 0.8 to 1.8 percent of potassium oxide, 0 to 1.5 percent of sodium oxide, 0 to 2 percent of titanium dioxide and 7 to 9 percent of loss on ignition.
2. The heat-resistant pottery according to claim 1, comprising the following components in percentage by weight: 48.50% of silicon dioxide, 36.5% of aluminum oxide, 2% of ferric oxide, 0.86% of calcium oxide, 1% of magnesium oxide, 1.25% of potassium oxide, 0.39% of sodium oxide, 1.50% of titanium dioxide and 8% of loss on ignition.
3. The heat-resistant pottery according to claim 1, comprising the following raw materials: guizhou soil, Longchang soil, quartz sand and Yongchuan soil.
4. The heat-resistant pottery according to claim 2, comprising the following raw materials in percentage by weight: 54.15 percent of Guizhou soil, 9.76 percent of Longchang soil, 25.4 percent of quartz sand and 10.69 percent of Yongchuan soil.
5. A method for manufacturing heat-resistant pottery according to any one of claims 1 to 4, comprising the steps of:
1) mixing Guizhou soil, Longchang soil, quartz sand and Yongchuan soil according to a proportion, and stirring and grinding the mixture by a ball mill to obtain a mixture A;
2) filtering the mixture A by using a 250-mesh screen;
3) grouting and rolling the filtered mixture A to treat a pottery blank B;
4) and (3) drying the pottery blank body B, putting the pottery blank body B into a kiln for heating roasting treatment, and cooling treatment after the heating roasting treatment to obtain the heat-resistant pottery with the heat-resistant function.
6. The method for manufacturing heat-resistant pottery according to claim 5, wherein the mixture A is filtered by the 250-mesh screen in the step 2), and the filtered residue is 5-35%.
7. The method for manufacturing heat-resistant pottery according to claim 5, wherein the maximum temperature of the temperature-raising roasting treatment in step 4) is between 1145 ℃ and 1230 ℃.
8. The method for manufacturing heat-resistant pottery according to claim 5, wherein in the step 4), the temperature-raising roasting high-temperature section is carried out for a holding time of not less than 30 minutes.
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| CN201910938408.6A CN110642592A (en) | 2019-09-30 | 2019-09-30 | Heat-resistant pottery and manufacturing method thereof |
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| CN201910938408.6A CN110642592A (en) | 2019-09-30 | 2019-09-30 | Heat-resistant pottery and manufacturing method thereof |
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| CN110642592A true CN110642592A (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754413A (en) * | 2021-09-28 | 2021-12-07 | 江西萍乡龙发实业股份有限公司 | Preparation method of special ceramic tile with high acid resistance, temperature resistance and pressure resistance |
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2019
- 2019-09-30 CN CN201910938408.6A patent/CN110642592A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754413A (en) * | 2021-09-28 | 2021-12-07 | 江西萍乡龙发实业股份有限公司 | Preparation method of special ceramic tile with high acid resistance, temperature resistance and pressure resistance |
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