CN111533532A - Domestic ceramic blank material and preparation process thereof - Google Patents
Domestic ceramic blank material and preparation process thereof Download PDFInfo
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- CN111533532A CN111533532A CN202010340599.9A CN202010340599A CN111533532A CN 111533532 A CN111533532 A CN 111533532A CN 202010340599 A CN202010340599 A CN 202010340599A CN 111533532 A CN111533532 A CN 111533532A
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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
- C04B33/131—Inorganic additives
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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
- C04B33/16—Lean materials, e.g. grog, quartz
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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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- 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
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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
- 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
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a domestic ceramic blank material and a preparation process thereof, belonging to the technical field of ceramics, wherein the raw material of the domestic ceramic blank material comprises an anti-reflection agent, the anti-reflection agent is cordierite, the content of silicon in the cordierite is 49-51%, the content of aluminum in the cordierite is 34-36%, the content of magnesium in the cordierite is 12-14%, and the fineness of the cordierite is 325-425 meshes. The cordierite is added into the domestic ceramic green body material as an anti-reflection agent, the refractoriness of the cordierite is high and reaches 1400 ℃, and the problem of insufficient refractoriness caused by a solvent can be solved; magnesium in cordierite can be used as a cosolvent, so that a green body is more transparent, the problem that the whiteness and the transparency of high-grade domestic ceramics cannot be compatible can be solved, and the prepared ceramics have high refractoriness and are not deformed.
Description
Technical Field
The invention belongs to the technical field of ceramics, and particularly relates to a domestic ceramic blank material.
Background
The daily ceramic blank material generally adopts minerals such as feldspar, kaolin, quartz and the like as raw materials, and in the process of realizing the invention, the inventor finds that the prior daily ceramic blank material at least has the following problems:
in order to pursue whiteness, high-grade domestic ceramics need to improve the proportion of ridge raw materials such as kaolin, quartz and the like, but the transparency is affected; in order to improve the transparency, the proportion of the feldspar minerals needs to be improved, but the whiteness and the refractoriness are reduced; in order to achieve the dual standards of whiteness and transparency, the firing temperature of the green body needs to be stabilized above 1300 ℃, which determines that the content of the feldspar solvents cannot be too high, otherwise the green body is softened and collapsed; if the quartz content is simply increased and the kaolin content is simply reduced, the whiteness is reduced below the national standard while the transparency and the refractoriness are obtained.
Therefore, how to obtain a stable and feasible high-whiteness and high-transparency high-temperature fired green body is a difficult problem faced by high-grade domestic ceramics.
Disclosure of Invention
Based on the background problem, the invention aims to provide a domestic ceramic blank material, cordierite is added as an anti-reflection agent, and the problem that the whiteness and the transparency of the domestic ceramic in the prior art are difficult to be compatible when the domestic ceramic is fired at high temperature can be solved; the invention also aims to provide a preparation process of the domestic ceramic blank material.
On one hand, the embodiment of the invention provides a domestic ceramic blank material, the raw material of the domestic ceramic blank material comprises an anti-reflection agent, and the anti-reflection agent is cordierite.
Preferably, the cordierite has a silicon content of 49-51%, an aluminum content of 34-36%, and a magnesium content of 12-14%.
Preferably, the cordierite has a fineness of 325-425 mesh.
In one embodiment, the domestic ceramic blank material comprises the following raw materials in percentage by mass: 34-40% of quartz, 22-30% of kaolin, 23-30% of potassium feldspar, 5-13% of alumina and 0.2-5% of cordierite.
On the other hand, the invention provides a preparation process of a domestic ceramic blank material, which comprises the following steps: weighing quartz, kaolin, potassium feldspar, alumina and cordierite according to the proportion, mixing and ball-milling the mixture until the fineness is 325-mesh 425, and obtaining slurry; and removing iron from the obtained slurry, then carrying out mud pressing, ageing for 18-48h, and carrying out primary refining and refining in sequence after ageing.
Preferably, the iron removal of the slurry is carried out in two times, and after the slurry is subjected to primary iron removal and is aged for 18-48 hours, the secondary iron removal is carried out.
Preferably, the water content of the mud cake is controlled to be 18-22% in the mud pressing process.
Preferably, after the primary refining is finished, the mixture is aged for 18-36h and then refined.
Compared with the prior art, the invention has the following effects:
1. the cordierite is added into the domestic ceramic green body material as an anti-reflection agent, the refractoriness of the cordierite is high and reaches 1400 ℃, and the problem of insufficient refractoriness caused by a solvent can be solved; magnesium in cordierite can be used as a cosolvent, so that a green body is more transparent, the problem that the whiteness and the transparency of high-grade domestic ceramics cannot be compatible can be solved, and the prepared ceramics have high refractoriness and are not deformed.
2. The cordierite with the fineness of 325-425 meshes is selected, and the cordierite with the fineness of 325-425 meshes is too coarse to cause devitrification, and the cordierite with the fineness of too small to cause the reduction of the refractoriness of the green body.
3. The invention limits the silicon content in cordierite to be 49-51%, the aluminum content to be 34-36% and the magnesium content to be 12-14%, namely, white cordierite with low ferrotitanium content is selected as an anti-reflection agent to prevent the whiteness of the green body from changing.
4. The cordierite added in the invention can not affect the manufacturing process of the blank slurry, no new equipment is needed to be purchased, and the production cost is low.
Detailed Description
In order to solve the problem that the existing ceramic is difficult to be compatible with whiteness and transparency, the invention provides a domestic ceramic blank material, cordierite is selected as an anti-reflection agent, the refractoriness of the cordierite is high and reaches 1400 ℃, and the problem of insufficient refractoriness caused by a solvent can be solved; magnesium in cordierite can be used as a cosolvent, so that a green body is more transparent, the problem that the whiteness and the transparency of high-grade domestic ceramics cannot be compatible can be solved, and the prepared ceramics have high refractoriness and are not deformed.
It should be noted that the cordierite in the embodiment of the present invention is industrially synthesized by using talc, kaolin and alumina as raw materials to ensure that the purity and the composition of the raw materials are controllable, the synthesized cordierite has a silicon content of 49 to 51%, an aluminum content of 34 to 36% and a magnesium content of 12 to 14%, and the synthesis process of the cordierite is a conventional technique.
The invention will be elucidated by means of specific embodiments.
Example 1
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 35% of quartz, 30% of kaolin, 25% of potassium feldspar, 7% of alumina and 3% of cordierite.
The preparation process of the domestic ceramic blank material of the embodiment comprises the following steps:
1. weighing quartz, kaolin, potash feldspar, alumina and cordierite according to the proportion, mixing, adding into a ball mill, and ball-milling for 6-8h until the fineness is 325 meshes to obtain slurry; the specific ball milling time is based on the sampling detection result, and the detection standard is that the screen allowance of a 325-mesh analysis screen in 100g of slurry is less than or equal to 0.5%;
2. putting the obtained slurry into a slurry tank after primary iron removal, aging for 18h, and then performing secondary iron removal through an iron remover and a magnetic separator;
3. after iron is removed, the sludge is pressed, the moisture content of the sludge cake is controlled to be 18-22%, and the sludge cake is aged for 18 hours;
4. and (3) performing primary refining by using a pug mill after ageing, and refining after ageing for 18h, wherein the refined material can be used after refining.
Example 2
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 40% of quartz, 25% of kaolin, 25% of potassium feldspar, 5% of alumina and 5% of cordierite. The process for producing the domestic ceramic green body material of this example was the same as in example 1.
Example 3
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 40% of quartz, 25% of kaolin, 25% of potassium feldspar, 9.8% of alumina and 0.2% of cordierite. The process for producing the domestic ceramic green body material of this example was the same as in example 1.
Example 4
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 34% of quartz, 22% of kaolin, 30% of potassium feldspar, 13% of alumina and 1% of cordierite. The process for producing the domestic ceramic green body material of this example was the same as in example 1.
Example 5
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 35% of quartz, 28% of kaolin, 23% of potassium feldspar, 10% of alumina and 4% of cordierite.
The preparation process of the domestic ceramic blank material of the embodiment comprises the following steps:
1. weighing quartz, kaolin, potash feldspar, alumina and cordierite according to the proportion, mixing, adding into a ball mill, and ball-milling for 6-8h until the fineness is 325 meshes to obtain slurry; the specific ball milling time is based on the sampling detection result, and the detection standard is that the screen allowance of a 325-mesh analysis screen in 100g of slurry is less than or equal to 0.5%;
2. putting the obtained slurry into a slurry tank after primary iron removal, aging for 24 hours, and then performing secondary iron removal through an iron remover and a magnetic separator;
3. after iron is removed, the sludge is pressed, the moisture content of the sludge cake is controlled to be 18-22%, and the sludge cake is aged for 24 hours;
4. and (3) performing primary refining by using a pug mill after the ageing, and refining after ageing for 24 hours, wherein the refined material can be used after refining.
Example 6
The raw materials of the domestic ceramic green body material of the embodiment are the same as the raw materials of the embodiment 5, and the preparation process comprises the following steps:
1. weighing quartz, kaolin, potash feldspar, alumina and cordierite according to the proportion, mixing, adding into a ball mill, and ball-milling for 6-8h until the fineness is 425 meshes to obtain slurry; the specific ball milling time is based on the sampling detection result, and the detection standard is that the screen allowance of a 425-mesh analysis screen in 100g of slurry is less than or equal to 0.5%;
2. putting the obtained slurry into a slurry tank after primary iron removal, aging for 48 hours, and then performing secondary iron removal through an iron remover and a magnetic separator;
3. after iron is removed, the sludge is pressed, the moisture content of the sludge cake is controlled to be 18-22%, and the sludge cake is aged for 48 hours;
4. and (3) performing primary refining by using a pug mill after ageing, and refining after ageing for 48 hours, wherein the refined material can be used after refining.
Comparative example
The domestic ceramic blank material comprises the following raw materials in percentage by mass: 39% of quartz, 28% of kaolin, 23% of potassium feldspar and 10% of alumina, and the preparation method of the comparative example is the same as that of example 5.
The whiteness of the ceramic chips manufactured by the blanks in the example 5 and the comparative example is measured, and the whiteness of the ceramic chips is measured by a WSD-III type full-automatic whiteness instrument, wherein the measured whiteness of the ceramic chip in the example 5 is 86, and the whiteness of the ceramic chip in the comparative example is 75, so that the whiteness of the ceramic can be obviously improved by adding cordierite as an anti-reflection agent.
It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (8)
1. The domestic ceramic blank material is characterized in that the raw material of the domestic ceramic blank material comprises an anti-reflection agent, and the anti-reflection agent is cordierite.
2. The domestic ceramic green body material according to claim 1, wherein said cordierite has a silicon content of 49-51%, an aluminum content of 34-36% and a magnesium content of 12-14%.
3. The household ceramic green body material as claimed in claim 2, wherein the cordierite has a fineness of 325-425 mesh.
4. The domestic ceramic blank material according to claim 1, comprising the following raw materials in percentage by mass:
34-40% of quartz, 22-30% of kaolin, 23-30% of potassium feldspar, 5-13% of alumina and 0.2-5% of cordierite.
5. The preparation process of the domestic ceramic blank material is characterized by comprising the following steps of:
weighing quartz, kaolin, potassium feldspar, alumina and cordierite according to the proportion, mixing and ball-milling the mixture until the fineness is 325-mesh 425, and obtaining slurry;
and removing iron from the obtained slurry, then carrying out mud pressing, ageing for 18-48h, and carrying out primary refining and refining in sequence after ageing.
6. The process for preparing a domestic ceramic blank material according to claim 5, wherein the iron removal of the slurry is carried out twice, and after the iron removal of the slurry for the first time and the aging for 18-48 hours, the iron removal for the second time is carried out.
7. The process for preparing a green household ceramic material as claimed in claim 5, wherein the moisture content of the mud cake is controlled to 18-22% in the mud pressing step.
8. The process for preparing a green household ceramic material as claimed in claim 5, wherein the green household ceramic material is refined after aging for 18-36 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010340599.9A CN111533532A (en) | 2020-04-26 | 2020-04-26 | Domestic ceramic blank material and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010340599.9A CN111533532A (en) | 2020-04-26 | 2020-04-26 | Domestic ceramic blank material and preparation process thereof |
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| CN111533532A true CN111533532A (en) | 2020-08-14 |
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| CN202010340599.9A Pending CN111533532A (en) | 2020-04-26 | 2020-04-26 | Domestic ceramic blank material and preparation process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967971A (en) * | 1971-07-09 | 1976-07-06 | Scm Corporation | Translucent ceramic whiteware products |
| CN101665347A (en) * | 2009-09-22 | 2010-03-10 | 景德镇陶瓷学院 | Daily-used fine porcelain with high property and preparation method thereof |
| CN102417305A (en) * | 2011-06-14 | 2012-04-18 | 淄博工陶耐火材料有限公司 | Artificial jade tableware and preparation method thereof |
| CN107200552A (en) * | 2017-04-25 | 2017-09-26 | 福建省德化县九鼎陶瓷有限公司 | Daily resistance to dry combustion method ceramics and its manufacturing process |
| CN107337432A (en) * | 2017-06-21 | 2017-11-10 | 泉州市陶瓷科学技术研究所 | Dehua glutinous rice tire ceramic whiteware and its preparation technology |
-
2020
- 2020-04-26 CN CN202010340599.9A patent/CN111533532A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967971A (en) * | 1971-07-09 | 1976-07-06 | Scm Corporation | Translucent ceramic whiteware products |
| CN101665347A (en) * | 2009-09-22 | 2010-03-10 | 景德镇陶瓷学院 | Daily-used fine porcelain with high property and preparation method thereof |
| CN102417305A (en) * | 2011-06-14 | 2012-04-18 | 淄博工陶耐火材料有限公司 | Artificial jade tableware and preparation method thereof |
| CN107200552A (en) * | 2017-04-25 | 2017-09-26 | 福建省德化县九鼎陶瓷有限公司 | Daily resistance to dry combustion method ceramics and its manufacturing process |
| CN107337432A (en) * | 2017-06-21 | 2017-11-10 | 泉州市陶瓷科学技术研究所 | Dehua glutinous rice tire ceramic whiteware and its preparation technology |
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Application publication date: 20200814 |