CN113400442B - Method for manufacturing glazed tile by using solid powder - Google Patents
Method for manufacturing glazed tile by using solid powder Download PDFInfo
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- CN113400442B CN113400442B CN202110697095.7A CN202110697095A CN113400442B CN 113400442 B CN113400442 B CN 113400442B CN 202110697095 A CN202110697095 A CN 202110697095A CN 113400442 B CN113400442 B CN 113400442B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
- B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
-
- 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
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/19—Alkali metal aluminosilicates, e.g. spodumene
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Dispersion Chemistry (AREA)
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Abstract
The invention relates to the technical field of ceramic tile production, in particular to a method for manufacturing glazed tiles by adopting solid powder; the method comprises the following steps: s1, placing solid powder in a press, and pressing under the action of a mold to form a green brick base layer; s2, drying the green brick base layer to enable the water content to be not more than 0.3%; s3, uniformly spraying the ceramic slurry on the upper surface of the green brick base layer to form a green brick surface layer to obtain a green brick; s4, drying the green bricks; s5, applying base glaze on the surface of the green brick; s6, surface decoration; s7, applying surface glaze; s8, firing; ceramic slurry with the thickness of 0.2 mm-1 mm is uniformly sprayed on a green brick base layer to form a green brick surface layer, and the green brick surface layer is obtained by adopting a slurry spraying mode, so that the surface of the green brick surface layer is smooth and fine, and the problem that the surface of a green brick pressed by solid powder is rough is effectively solved; the glazed tile has better smoothness and flatness on the surface, and the color and pattern expression of the glazed tile are improved.
Description
Technical Field
The invention relates to the technical field of ceramic tile production, in particular to a method for manufacturing glazed tiles by adopting solid powder.
Background
At present, in the ceramic industry, the powder preparation process which is actually applied in production mainly comprises a wet powder preparation process, a dry powder preparation process and an integrated powder preparation process.
The wet method powder preparation is spray drying powder preparation, and the application of the spray drying powder preparation process in the ceramic tile production has been in the past forty years. The technological process of spray drying powder preparation comprises the following steps: raw material crushing → weighing and proportioning → wet ball milling → slurry sieving to remove iron → slurry homogenizing → spray drying → powder lot. The main production equipment for spray drying and pulverizing is spray drying tower and hot-blast stove, the hot-blast stove generally uses water-coal slurry (or lump coal, water gas and natural gas) as fuel, the hot-blast stove provides hot air for spray drying tower, the hot air and atomized slurry in the spray drying tower can implement heat exchange, and the slurry whose water content is 33% -40% can be dried into powder whose water content is 6% -8%. The powder produced by the process has the advantages of good fluidity and uniformity and stable powder quality, and is widely applied to ceramic tile production enterprises. The main disadvantages of the spray drying powder preparation process are high energy consumption, high emission and high cost.
Dry milling: the typical dry process flow is: raw material crushing → weighing and proportioning → dry grinding (such as vertical milling) → granulating by adding water → dry optimization → powder lot. The dry method powder preparation reduces the main energy consumption equipment of the spray drying tower, so the energy consumption is low, and the economic benefit can be obviously increased. And because the energy consumption is reduced, the pollutant emission is reduced, and the ultralow emission can be realized without arranging special pollutant treatment facilities. The dry method powder preparation has no huge mud pool, the solid powder can not realize high homogenization like fluid mud, and the requirements on the quality and the stability of the raw materials are higher. And the powder prepared by dry milling has poor mixing uniformity, large dust in the production process, difficult removal of iron-containing impurities and coarse particle impurities, poor powder flowability and particle grading and the like, so that the product quality stability is poor and the product qualification rate is low, which influences the application of the dry milling process.
The main process of the integrated powder preparation process comprises the following steps: raw material crushing → weighing and proportioning → wet ball milling → slurry sieving and deironing → slurry homogenizing → filter pressing and dewatering → mud cake cutting → mud drying → granulation → optimization → qualified powder. The preparation process of the slurry of the process is basically the same as that of the slurry of the traditional process, the slurry is subjected to filter pressing and dehydration to obtain a mud cake with the water content of 20-21%, the mud cake is cut into small mud blocks and then dried by a dryer to obtain small mud blocks with the water content of about 10%, and the small mud blocks are crushed, granulated and optimized to obtain powder particles with the water content of 7-8% and the particle size meeting the requirement. Compared with the ball milling-spray drying powder preparation process and the vertical milling-dry powder preparation process, the ball milling-integrated powder preparation belongs to a wet process.
The integrated powder making process can fully utilize the afterheat of a firing kiln, overcomes the defects of high energy consumption, high emission and high cost of a spray drying powder making process, overcomes the defects of poor mixing uniformity of ingredients, large dust in the production process and difficult removal of iron-containing impurities and coarse particle impurities of a dry powder making process, and combines certain advantages of the traditional spray drying powder making process and the dry powder making process.
The following table shows the comparison of the forms of the powders prepared in the 3 powder preparation processes:
| wet process for making powder | Dry milling | Integrated powder process | |
| Powder form | Hollow, nearly spherical | Solid, relatively irregular | Solid, relatively irregular |
As can be seen from the above table, the powder mainly has two forms, i.e., hollow powder and solid powder. Compared with the spherical hollow powder with smooth and regular surface after spray granulation of wet powder preparation, the solid powder obtained by dry powder preparation and integrated powder preparation has irregular surface, rough surface, poor sphericity, higher solid strength of particles and higher requirement on press molding. This results in the failure to simply implement a dry process instead of a wet process for the milling process, requiring a subsequent change in the overall process flow.
On the glazed tile, the hollow powder obtained by wet milling has smooth surface, good fluidity and small friction among particles, when a certain pressure is applied on a blank, the hollow powder begins to move towards the stress direction, the gas among the powder is extruded by extrusion, the powder particles uniformly shrink along with the increase of the pressure to form compact accumulation, and the surface of the blank body is smooth and flat; the surface of solid powder particles obtained by dry powder preparation or integrated powder preparation is uneven and has edges and corners, the particles are irregular, the flowability is poor, the friction force among the particles is large, certain pressure is not applied to the powder, the powder particles start to move towards the stress direction, gas among the powder is extruded by extrusion, the powder particles can deform and break along with the increase of the pressure, the powder particles shrink unevenly, fine pits and protrusions are formed on the surface of a blank, the roughness is large, and the surface of the blank is not smooth and uneven. In order to solve the problem of rough surface of green bricks pressed by solid powder, the following two treatment modes exist at present:
the method comprises the following steps: chinese invention patent with application number CN 2018105787454: a method for producing green brick and glazed brick by dry pulverizing features that the green brick is polished to improve its surface smoothness and smoothness, resulting in better surface smoothness and decorative effect.
Secondly, the following steps: the thickness of the ground coat is increased during glazing to cover up the defects on the surface of the green brick.
However, both of the above methods have some problems, and the first method has a major disadvantage of complicated process, and although the patent improves the surface quality of the green body, since the solid powder particles are liable to form pores inside during pressing, the green body is liable to have depressions on the surface after firing even though the surface flatness and smoothness are high. For the second method, the thickness of the ground coat is increased to increase the product cost, the price of the glaze is 2000 yuan/ton (2021 year price), the cost is higher, and secondly, the thick glaze has poor binding property due to large component difference with the green brick, and other surface defects are easy to occur.
Therefore, there is a need to develop a new process for making glazed tile from solid powder, which can improve the performance of the glazed tile and further reduce the cost.
Disclosure of Invention
The invention provides a method for manufacturing a glazed tile by using solid powder, aiming at solving the above factors existing in the production of the glazed tile by using the solid powder.
In order to achieve the functions, the technical scheme provided by the invention is as follows:
a method for manufacturing a glazed tile by using solid powder comprises the following steps:
s1, placing solid powder in a press, and pressing under the action of a mold to form a green brick base layer;
s2, drying the green brick base layer to enable the water content of the green brick base layer to be not more than 0.3%;
s3, uniformly spraying ceramic slurry on the upper surface of the green brick base layer to form a green brick surface layer to obtain a green brick;
s4, drying the green bricks;
s5, applying base glaze on the surface of the green brick;
s6, surface decoration;
s7, applying surface glaze;
and S8, firing to obtain the glazed tile.
Preferably, the ceramic slurry comprises the following components in parts by weight:
26-30 parts of high-potassium sand, 8-12 parts of aluminum sand, 24-28 parts of potassium stone powder, 24-28 parts of sodium stone powder, 3-5 parts of talc mud, 8-12 parts of glaze-used washing kaolin and 1-3 parts of calcined kaolin.
Preferably, the ceramic slurry further comprises the following components in parts by weight:
0.1 to 0.5 portion of water glass and 0.1 to 0.2 portion of sodium tripolyphosphate.
Preferably, the thickness of the adobe surface layer is 0.2 mm-1 mm.
Preferably, the thickness of the green brick base layer is 6 mm-10 mm.
Preferably, the solid powder used in step S1 has a particle size of less than 12 mesh.
Preferably, the fineness of the ceramic slurry is 0.2-0.4 wt% of the screen residue of a 250-mesh screen, and the specific gravity of the slurry is 1.7-1.85 g/cm 3 The flow rate is 30 to 45 seconds.
Preferably, the method for manufacturing a glazed tile further comprises the steps of:
and S9, polishing the glaze.
Preferably, in the step S9, four sections of polishing tools are used for polishing, and each of the four sections of polishing tools is an elastic grinding block, a matte grinding block, a grinding friction block and a polishing sheet; the fineness of the abrasive is 120-250 meshes, 260-360 meshes, 340-400 meshes and 360-6 00 meshes respectively.
The invention has the beneficial effects that:
1. ceramic slurry with the thickness of 0.2 mm-1 mm is uniformly sprayed on the surface of the formed green brick base layer to form a green brick surface layer, and the green brick surface layer is obtained by adopting a slurry spraying mode and is smooth and fine in surface, so that the problems of rough and uneven surface of the green brick base layer obtained by pressing solid powder are effectively solved; the surface of the glazed tile obtained after subsequent glazing, sintering and polishing has better smoothness and flatness and better decorative effect, and the color and pattern expressive force of the glazed tile are improved;
2. because the surface layer of the green brick is obtained by adopting a slurry spraying mode, the green brick base layer can be formed by adopting a coarse particle size, so that the cost of powder particles is reduced;
3. because the amount of the ceramic slurry or color paste required by the surface layer of the poured glazed tile blank is less, the ceramic slurry or color paste prepared in the same batch can meet the amount required by producing a large batch of glazed tiles, so that the glazed tile blanks produced in the same large batch can be ensured to have no color difference, and the finally obtained glazed tile finished products have no color difference;
4. the surface of the green brick of the glazed brick produced by the method is fine, so that the glaze amount of the ground coat applied in the subsequent production of the glazed brick can be reduced, and the cost of glaze materials is saved.
Drawings
FIG. 1 is a flow chart of a production method of the first embodiment;
FIG. 2 is a flow chart of the production method of example two.
Detailed Description
The invention will be further elucidated with reference to the accompanying figures 1 and 2:
the first embodiment is as follows:
the powder used in this embodiment is a solid powder obtained by dry milling or integrated milling, and these two milling processes are prior art and will not be described herein. As shown in figure 1, the method for manufacturing the glazed tile by using the solid powder comprises the following steps:
s1, placing solid powder in a press, and pressing under the action of a mold to form a green brick base layer;
s2, drying the green brick base layer to enable the water content of the green brick base layer to be not more than 0.3%;
s3, uniformly spraying ceramic slurry on the upper surface of the green brick base layer to form a green brick surface layer to obtain a green brick;
s4, drying the green brick to ensure that the water content of the green brick is not more than 0.3%;
s5, applying base glaze on the surface of the green brick;
s6, surface decoration;
s7, applying surface glaze;
and S8, firing to obtain the glazed tile.
The raw materials of the powder can adopt waste ore, tailings and low-grade raw materials, the particle size of the solid powder is smaller than 12 meshes, the water content is 7-9%, and the raw material cost and the granulation cost can be saved by selecting cheap raw materials and selecting powder with a larger particle size range. At present, when solid powder is used for pressing green bricks, powder with the particle size of more than 80 meshes and less than 30 meshes is generally used, and the purpose is to obtain better green brick surfaces in the follow-up process. In the invention, the quality of the surface of the green brick is mainly determined by the ceramic slurry sprayed on the green brick base layer, so the particle size range of the powder forming the green brick base layer and the selection of raw materials can be properly widened, thereby reducing the manufacturing cost of the powder. In addition, the base course of the green brick accounting for more than 80 percent of the volume of the green brick is produced by adopting low-grade cheap raw materials (ceramic raw materials with low whiteness and high impurity content), so that the raw material cost of production is greatly reduced on the basis of ensuring the same appearance of the product.
Generally, the thickness of the surface layer of the green brick is 0.2mm to 1mm, and the thickness of the base layer of the green brick is 3mm to 20mm. In this example, the particle size of the powder used for the green brick base layer was 120 mesh to 20 mesh, the thickness was 10mm, and the thickness of the green brick surface layer was 0.8mm.
In this embodiment, the ceramic slurry comprises the following components in parts by weight:
26 to 30 portions of high potassium sand, 8 to 12 portions of aluminum sand, 24 to 28 portions of potassium stone powder, 24 to 28 portions of sodium stone powder, 3 to 5 portions of talc mud, 8 to 12 portions of glaze-used washing kaolin, 1 to 3 portions of calcined kaolin, 0.1 to 0.5 portion of water glass and 0.1 to 0.2 portion of sodium tripolyphosphate.
Adding an appropriate amount of water into the components for ball milling, wherein the fineness of the obtained ceramic slurry is 0.2-0.4 wt% of the residue of a 250-mesh screen, and the specific gravity of the slurry is 1.7-1.85 g/cm 3 The flow rate is 30-45 seconds. The ceramic slurry is uniformly sprayed on the upper surface of a green brick base layer by adopting bell jar slurry spraying.
Because the components of the ceramic slurry and the green brick base layer are in the same formula system, the green brick surface layer sprayed with the ceramic slurry and the green brick base layer can be well combined during sintering; the different formula systems of the green brick and the glaze lead to the problem of blank glaze adaptability of the green brick and the glaze, so the glazing amount cannot be too much, and if thick base glaze is applied to cover the rough surface of the green brick to smooth the surface, the problem of cracking of a finished product and the like can be caused. The invention solves the problem of rough surface of the green brick by spraying the ceramic slurry and can reduce the quantity of the ground coat.
The whiteness of the surface of the green brick has important influence on the color development of the pigment, and in the chemical components of the green brick, fe 2 O 3 And TiO 2 2 The influence on the whiteness of the blank is the largest. When Fe 2 O 3 And TiO 2 When the content is higher, the whiteness of the blank is lower, and the color is introducedThe color development of the material after sintering is often not pure, and the color vividness is poor. In the invention, the whiteness of the surface of the green brick is mainly determined by the surface layer of the green brick, so the ceramic slurry adopts low Fe 2 O 3 And TiO 2 2 The raw materials are produced, and the ceramic slurry after ball milling is subjected to iron removal treatment, so that the whiteness of the surface of the green brick can be greatly improved under the condition of not increasing much cost because the using amount of the ceramic slurry is not large.
The surface of the ceramic adobe produced by the production method is smooth and fine, so that the ceramic tile produced based on the adobe in the subsequent process has better effect.
Taking glazed tile as an example, the amount of decorative glaze, namely bottom glaze, can be reduced during production based on the green brick, the glaze of the obtained glazed tile is smooth and flat, and the glazed pattern has richer expressive force, so that the quality of the glazed tile is effectively improved. In general, the thickness of a ground glaze of a green brick made of hollow powder obtained by wet powder making is 0.5-0.8 mm; in the invention, the thickness of the ground coat is 0.2-0.4 mm, and the same effect can be achieved, thereby saving the cost of the glaze.
On the other hand, when the green bricks are produced by the production method, the usage amount of the ceramic slurry used for slurry spraying of the surface layer of the green bricks is less, so that the ceramic slurry for slurry spraying produced by the same raw material can be used for a large batch (the production amount of a common ceramic factory is several days), and the color of the surface of the large batch of green bricks is determined by the ceramic slurry, thereby ensuring that the surface of the large batch of green bricks has consistent color, same color number and basically no color difference.
Before applying the ground coat, water can be sprayed on the surface of the green brick for wetting.
The surface decoration in step S6 is to perform inkjet printing or flat printing on the surface of the ground coat to obtain a decorative pattern.
Example two:
as shown in fig. 2, the main steps of the method for manufacturing a glazed tile by using solid powder of the present invention are the same as those of the first embodiment, and the main differences are as follows:
in order to obtain a brighter ceramic tile surface, the surface of the fired glazed tile can be polished to finally obtain the glazed tile.
In this embodiment, polishing the glaze surface adopts four-stage polishing:
a first stage: the elastic grinding block is used as a polishing machine of a polishing grinding tool, a polishing medium uses carborundum grinding materials, and the fineness of the grinding materials is 120-250 meshes;
and a second stage: the matte grinding block is used as a polishing machine of a polishing grinding tool, a polishing medium uses resin to bond silicon carbide and magnesium oxide abrasive, and the fineness of the abrasive is 260-360 meshes;
a third stage: the polishing machine uses grinding friction as a polishing grinding tool, the bristles of the grinding friction use silicon carbide and hard plastics, and the fineness of the grinding material is 340-400 meshes;
a fourth stage: the polishing sheet is used as a polishing machine of a polishing grinding tool, the polishing sheet is obtained by embedding silicon carbide abrasive into fibers and compacting or bonding and compacting, and the fineness of the abrasive is 360-600 meshes.
By the polishing, the pattern effect of the ceramic product is vivid and the luster is soft.
The method for manufacturing the glazed tile overcomes the problems that the surface of a green brick made of solid powder is rough, or the surface is polished and smooth but small holes are easy to form on the surface after heating, so that the glaze of the glazed tile is smooth and flat, and the method is not inferior to the method for manufacturing the glazed tile by using hollow powder prepared by a warm method, thereby being beneficial to popularization of dry powder preparation and integrated powder preparation technologies.
The above-described embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications in the structure, features and principles of the invention described in the claims should be included in the claims.
Claims (7)
1. A method for manufacturing glazed tiles by adopting solid powder is characterized by comprising the following steps: the method comprises the following steps:
s1, placing solid powder in a press, and pressing under the action of a mold to form a green brick base layer;
s2, drying the green brick base layer to enable the water content of the green brick base layer to be not more than 0.3%;
s3, uniformly spraying the ceramic slurry subjected to ball milling and iron removal on the upper surface of the green brick base layer to form a green brick surface layer with the thickness of 0.2-1 mm, so as to obtain a green brick;
the components of the ceramic slurry and the components of the solid powder are the same formula system; the ceramic slurry comprises the following components in parts by weight:
26-30 parts of high-potassium sand, 8-12 parts of aluminum sand, 24-28 parts of potassium stone powder, 24-28 parts of sodium stone powder, 3-5 parts of talc mud, 8-12 parts of glazed water-washed kaolin and 1-3 parts of calcined kaolin;
s4, drying the green bricks;
s5, applying base glaze on the surface of the green brick;
s6, surface decoration;
s7, applying surface glaze;
and S8, firing to obtain the glazed tile.
2. The method of claim 1 for making a glazed tile from solid powder, wherein: the ceramic slurry also comprises the following components in parts by weight:
0.1 to 0.5 portion of water glass and 0.1 to 0.2 portion of sodium tripolyphosphate.
3. The method of claim 1 for making a glazed tile from solid powder, wherein: the thickness of the green brick base layer is 3 mm-20 mm.
4. The method of claim 1 for making a glazed tile from solid powder, wherein: the grain diameter of the solid powder adopted in the step S1 is smaller than 12 meshes.
5. The method for making glazed tile using solid powder as claimed in any one of claims 1 to 4, wherein: the fineness of the ceramic slurry is 0.2wt% to up to 250 meshes of screen residue0.4wt% and the specific gravity of the slurry is 1.7-1.85 g/cm 3 The flow rate is 30-45 seconds.
6. The method of claim 5 for making a glazed tile from solid powder, wherein: further comprising the steps of:
and S9, polishing the glaze.
7. The method of claim 6 for making a glazed tile from solid powder, wherein: in the step S9, four sections are adopted for polishing, and the four sections of polishing grinding tools are respectively an elastic grinding block, a matte grinding block, a grinding friction and a polishing sheet; the fineness of the grinding materials is respectively 120-250 meshes, 260-360 meshes, 340-400 meshes and 360-600 meshes.
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| CN116143495B (en) * | 2023-04-18 | 2023-07-11 | 佛山市东鹏陶瓷有限公司 | Low-water-absorption glazed tile based on dry powder process and preparation method thereof |
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| CN204183374U (en) * | 2014-10-09 | 2015-03-04 | 佛山石湾鹰牌华鹏陶瓷有限公司 | A kind of rubbing down equipment obtaining matte effect throwing glazed brick |
| CN106320622B (en) * | 2016-08-08 | 2019-01-04 | 佛山市东鹏陶瓷有限公司 | A kind of Ceramic Tiles and its production method of dry-pressing injection forming |
| CN108046603B (en) * | 2017-12-18 | 2020-07-31 | 广东永航新材料实业股份有限公司 | Method for manufacturing one-type ceramic tiles |
| CN108585789B (en) * | 2018-06-07 | 2020-11-13 | 佛山市东鹏陶瓷有限公司 | Slurry-applying glazed adobe and glazed ceramic tile production method |
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