CN113716869B - Preparation process of ultra-flat glaze and pure-color ceramic large plate for ceramic large plate - Google Patents
Preparation process of ultra-flat glaze and pure-color ceramic large plate for ceramic large plate Download PDFInfo
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- CN113716869B CN113716869B CN202111163104.0A CN202111163104A CN113716869B CN 113716869 B CN113716869 B CN 113716869B CN 202111163104 A CN202111163104 A CN 202111163104A CN 113716869 B CN113716869 B CN 113716869B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
- C03C8/20—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
-
- 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
Abstract
The invention discloses an ultra-flat glaze for a ceramic large plate and a preparation process of a pure-color ceramic large plate, wherein the ultra-flat glaze comprises the following effective components in parts by weight: 53-94 parts of hard material; 20-35 parts of soft material; 0-2 parts of zirconium silicate; 0.3-1 part of auxiliary agent; the hard materials comprise refined sand, white sand and sodium sand; soft materials include high alumina; the preparation process comprises the steps of preparing a blank layer and ultra-flat glaze respectively, and glazing the blank layer by a glaze line, performing digital ink-jet, sintering by a kiln, and edging to obtain a solid-color ceramic large plate; the ultra-flat glaze disclosed by the invention uses the raw materials for the blank such as carefully chosen sand, white sand, sodium sand, high alumina and the like, so that the raw material performance between the blank and the glaze is close, and the melting and exhausting time is close, so that the combination degree of the blank is higher than that of a common glaze, the melting and exhausting performance of the whole formula is good, the flatness of the glaze surface is higher than that of a common glaze product, and the hand feeling, the flatness, the brick shape and the hardness of the glaze surface are improved compared with those of the common glaze.
Description
Technical Field
The invention relates to an ultra-flat glaze for a ceramic large plate and a preparation process of a pure-color ceramic large plate, and belongs to the technical field of building materials.
Background
The development of architectural ceramic products has been very abundant in surface decoration technology, and the physical properties of ceramic products are often required to be improved by glaze materials besides the basic easy-to-clean properties of the decorative glaze materials on ceramic blanks. In recent years, the ceramic large plate becomes a hot spot of the high-end market of the ceramic building industry due to the characteristics of rich color, natural texture, strong consistency, rich layering texture and the like. The ceramic large plate is not only used for floor tiles, but also used as a novel material for cabinet panels and kitchen and bathroom table tops, and can be widely applied to deep processing and customized products; in addition to the breakthrough of specifications, texture and comprehensive application solutions are also the main innovative directions.
Because the size of the ceramic large plate is far larger than that of a common ceramic tile, the difficulty of solving the problems of flatness, bubbles, cracks and the like of the brick surface in the preparation process is higher than that of the common ceramic tile, and especially, the solid ceramic large plate is one of high-end ceramics in the world and can be used as an engineering external wall plate, an indoor floor plate, a high-end villa, a large commercial square and the like, the application range is wide, but the embodiment of the solid ceramic large plate in the technical problems is also obvious compared with that of the common ceramic large plate, the processing difficulty is higher, and the preparation yield of the solid ceramic large plate with large size is also greatly limited by the problems in the prior art.
Accordingly, there are drawbacks in the prior art, and improvements and developments are needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the first aim of the invention is to provide the ultra-flat glaze for the ceramic large plate, and the whole formula has good melting and exhausting performances, so that the flatness, the hand feeling, the brick type and the hardness of the glaze surface of the prepared pure-color large plate are improved compared with those of the common glaze.
The second aim of the invention is to provide a preparation process for preparing the pure-color ceramic large plate by using the ultra-flat glaze.
The first object of the invention can be achieved by adopting the following technical scheme: an ultra-flat glaze for a ceramic large plate comprises the following effective components in parts by weight:
the hard materials comprise refined sand, white sand and sodium sand; the soft material includes high alumina.
Further, the composition comprises the following effective components in parts by weight:
further, the hard material comprises the following components in parts by weight:
further, the soft material comprises the following components in parts by weight:
5-10 parts of air knife kaolin;
10-15 parts of calcined kaolin;
5-10 parts of high bauxite.
Further, the auxiliary agent comprises sodium carboxymethyl cellulose, a dispersing agent for glaze and a dispergator; the dispergator is sodium tripolyphosphate; the glaze dispersing agent is a liquid dispergator.
The second object of the invention can be achieved by adopting the following technical scheme:
a preparation process of a solid-color ceramic large plate comprises the following steps:
s1, preparing a blank: putting the raw material components of the green body into a ball mill, uniformly mixing to obtain slurry, sieving, ageing, removing impurities, spray-drying to obtain powder, pressing the powder to form, and drying in a drying kiln to obtain a green body layer;
s2, preparing ultra-flat glaze: the active ingredients in parts by weight are as follows:
sequentially carrying out material proportioning and ball throwing, material ball milling, glaze slurry detection, slurry discharging, iron removal, sieving, storage and ageing for standby to obtain ultra-flat glaze; the hard material comprises white sand, sodium sand and refined sand; the soft material comprises high alumina;
and S3, glazing the blank layer through a glaze line, carrying out digital ink-jet, carrying out kiln firing, and carrying out edging to obtain the ceramic large plate.
Further, in the preparation process of the ultra-flat glaze, pigment for glaze is added and stirred for half an hour after the ultra-flat glaze is stale.
Further, the addition amount of the glaze coloring material is 0 to 5 parts.
Further, in the preparation process of the ultra-flat glaze, the fineness of the glaze slurry is 325 meshes, the screen residue is 0.6-0.8g, and the flow rate is 60-120 s by using a four-viscosity cup coating test.
Further, the thickness of the ceramic large plate is 2-20 mm, and the surface area is not less than 1.62m 2 。
Compared with the prior art, the invention has the beneficial effects that:
1. the ultra-flat glaze disclosed by the invention uses the raw materials for the blank such as carefully chosen sand, white sand, sodium sand, high alumina and the like, so that the raw material performance between the blank and the glaze is close, and the melting and exhausting time is close, so that the combination degree of the blank is higher than that of a common glaze, the melting and exhausting performance of the whole formula is good, the flatness of the glaze surface is higher than that of a common glaze product, and the hand feeling, the flatness, the brick shape and the hardness of the glaze surface are improved compared with those of the common glaze;
2. meanwhile, the invention effectively solves the problems that the existing pure-color ceramic plate is easy to generate cracks and holes and color difference in the production process, and the effect that the surface and the inside are difficult to achieve the same color affects the attractiveness.
3. The super-flat glaze is added with the refined sand, the white sand, the sodium sand and the high bauxite, the main effect of the addition is to reduce the addition amount of the simple substance quartz, and the problems that the early stage of high initial melting point is difficult to melt and the later stage is difficult to melt and flat caused by excessive addition of quartz can be avoided, so that the melting point of the glaze is further reduced, the melting point of the glaze is reduced, the hardness of the glaze is higher, and the brick shape is more excellent;
4. the invention improves the component proportion of the ultra-flat glaze, so that the prepared ceramic large plate has excellent performance indexes such as flatness, hardness, brick shape and the like, has good economic benefit and is suitable for large-scale popularization.
Detailed Description
The following detailed description of embodiments of the present invention is provided by way of specific examples, by which the technical means of the present invention are applied to solve the technical problems, and the implementation process for achieving the technical effects can be fully understood and implemented accordingly. Unless otherwise indicated, the technical means employed in the examples are conventional means well known to those skilled in the art, and the reagents and products employed are also commercially available. The various processes and methods not described in detail are conventional methods well known in the art, and the reagents used are all commercially available reagents in common use.
The invention provides an ultra-flat glaze for a ceramic large plate, which comprises the following effective components in parts by weight:
the hard materials comprise refined sand, white sand and sodium sand; the soft material includes high alumina.
As a further preferred scheme, the ultra-flat glaze for the ceramic large plate comprises the following effective components in parts by weight:
as a further preferable scheme, the hard material comprises the following components in parts by weight:
as a further preferable scheme, the soft material comprises the following components in parts by weight:
5-10 parts of air knife kaolin;
10-15 parts of calcined kaolin;
5-10 parts of high bauxite.
As a further preferred embodiment, the auxiliary agents include sodium carboxymethylcellulose, a glaze dispersant and a dispergator; the dispergator is sodium tripolyphosphate; the glaze dispersing agent is a liquid dispergator.
In the formula of the invention, raw materials such as refined sand, white sand, high-white sodium sand, high-alumina and the like are cited, so that the raw material properties between the two are approximate, the adaptability of the blank glaze is improved, the melting and exhausting time is approximate, the melting property is better, the matching degree is high, the melting point and the crystal phase conversion temperature of a blank layer and a glaze layer are consistent, and the problems of bubbles and flatness of a brick surface can be well solved.
In the formula of the invention, high silicon raw materials such as refined sand, white sand and the like are added for blanks, so that the addition of quartz for adjusting the glossiness of the glaze can be avoided, the melting point of the glaze is reduced, and the brick surface is smoother. The initial melting point of quartz is difficult to melt in the early stage and difficult to melt in the later stage, and a large amount of blank raw materials are adopted in the ultra-flat glaze formula, so that the expansion coefficients of a blank layer and a glaze layer are closer to the initial melting point, and brick type and air bubbles can be effectively controlled.
In the formula, the raw materials such as potassium feldspar, sodium feldspar and the like are added to mainly play a role in high-temperature dissolution assistance, so that a high-temperature liquid phase is increased, the homogenization degree of a glaze layer is improved, and the glaze surface is smoother.
In the formula of the invention, sodium tripolyphosphate mainly plays a role of ceramic dispergator, so that the fluidity of glaze slurry is increased, and the ceramic performance is improved.
The liquid dispergator has the characteristics of better slurry stability, faster slurry flow rate, higher slurry specific gravity, more uniform particle distribution and the like, and is particularly suitable for difficult-to-break glue formula systems with high aluminum, high viscosity and the like; in the formula of the invention, the liquid dispergator is added to be matched with auxiliary agents such as sodium tripolyphosphate and the like to generate a synergistic effect, so that the ceramic glaze slip can be diluted, the thixotropy of the ceramic glaze slip is reduced, the slow flow speed caused by thixotropy in the storage process is prevented, the performance of the glaze slip is improved, and meanwhile, the ceramic glaze slip can be effectively prevented from precipitating.
As a further preferable scheme, the liquid dispergator is selected from FG-101B model of Guyue New Material Co., ltd.
As a further preferred embodiment, the sodium carboxymethyl cellulose is selected from the group consisting of cellulose only, inc.
The ultra-flat glaze disclosed by the invention uses the raw materials for the blank such as carefully chosen sand, white sand, sodium sand, high alumina and the like, so that the raw material performance between the blank and the glaze is close, and the melting and exhausting time is close, so that the combination degree of the blank is higher than that of a common glaze, the melting and exhausting performance of the whole formula is good, the flatness of the glaze surface is higher than that of a common glaze product, and the hand feeling, the flatness, the brick shape and the hardness of the glaze surface are improved compared with those of the common glaze;
in addition, the super-flat glaze is added with the refined sand, the white sand, the sodium sand and the high bauxite, the main effect of the addition is to reduce the addition amount of the simple substance quartz, and the problems that the early stage of high initial melting point is difficult to melt and the later stage is difficult to melt and flat caused by excessive addition of quartz can be avoided, so that the melting point of the glaze is further reduced, the melting point of the glaze is reduced, the hardness of the glaze is higher, and the brick shape is more excellent.
The invention also provides a preparation process of the ultra-flat glaze for preparing the solid-color ceramic large plate, which comprises the following steps:
s1, preparing a blank: putting the raw material components of the green body into a ball mill, uniformly mixing to obtain slurry, sieving, ageing, removing impurities, spray-drying to obtain powder, pressing the powder to form, and drying in a drying kiln to obtain a green body layer;
s2, preparing ultra-flat glaze: the active ingredients in parts by weight are as follows:
sequentially carrying out material proportioning and ball throwing, material ball milling, glaze slurry detection, slurry discharging, iron removal, sieving, storage and ageing for standby to obtain ultra-flat glaze;
the hard material comprises white sand, sodium sand and refined sand; the soft material comprises high alumina;
and S3, glazing the blank layer through a glaze line, carrying out digital ink-jet, carrying out kiln firing, and carrying out edging to obtain the ceramic large plate.
As a further preferable scheme, in the preparation process of the ultra-flat glaze, pigment for glaze is added and stirred for half an hour after ageing.
As a further preferable mode, the addition amount of the pigment for glaze is 0-5 parts; the glaze pigment is purchased from Huadu ceramic colored glaze limited company in the florida city.
As a further preferable scheme, in the preparation process of the ultra-flat glaze, the fineness of the glaze slurry is 325 meshes, the screen residue is 0.6-0.8g, and the flow rate is 60-120 s by using a four-viscosity cup.
As a further preferable scheme, the thickness of the solid-color ceramic large plate is 2-20 mm, and the surface area is not less than 1.62m 2 。
The invention is further illustrated by the following examples:
an ultra-flat glaze for a ceramic large plate comprises the following effective components in parts by weight as shown in table 1:
TABLE 1 active ingredients
The preparation process of the ultra-flat glaze comprises the steps of sequentially carrying out proportioning, ball-milling raw materials, detecting glaze slip, removing iron by slip, sieving, storing and aging on the effective components to obtain the ultra-flat glaze.
Wherein, in the preparation process of the ultra-flat glaze, the fineness of the glaze slurry is 325 meshes of screen residue of 0.6-0.8g, and the flow rate is 60-120 s by using a four-viscosity cup coating test.
Examples 1-3 and comparative examples 1-2:
the effective components in parts by weight of examples 1-3 and comparative examples 1-2 are shown in Table 2:
table 2 examples and comparative examples effective components in parts by weight
The preparation process of the ultra-flat glaze comprises the steps of sequentially carrying out proportioning and ball throwing on the effective components, carrying out ball milling on raw materials, detecting glaze slip, removing iron by slip, sieving, storing and aging for standby to obtain the ultra-flat glaze.
Wherein, in the preparation process of the ultra-flat glaze, the fineness of the glaze slurry is 325 meshes of screen residue of 0.6-0.8g, and the flow rate is 60-120 s by using a four-viscosity cup test; adding the pigment for glaze and stirring for half an hour after ageing; the addition amount of the glaze pigment is 0-5 parts.
Examples and comparative examples were tested:
table 3 results of the tests of examples and comparative examples
According to the test results of the table, in the embodiments 1-3 and the comparative example 1, raw materials such as refined sand, white sand, high-white sodium sand, high-alumina and the like are cited, so that the raw material performance between the two raw materials is close, the adaptability of the blank glaze is improved, the melting exhaust time is close, the melting property is relatively good, the matching degree is high, the melting point and the crystal phase conversion temperature of a blank layer and a glaze layer are consistent, and the problems of bubbles and flatness of a brick surface can be well solved; the addition of high silicon raw materials for blanks such as refined sand, white sand and the like can avoid the addition of quartz for adjusting the glossiness of the glaze, reduce the melting point of the glaze and enable the surface of the brick to be smoother. The initial melting point of quartz is difficult to melt in the early stage and difficult to melt in the later stage, and a large amount of blank raw materials are adopted in the ultra-flat glaze formula, so that the expansion coefficients of a blank layer and a glaze layer are closer to the initial melting point, and brick type and air bubbles can be effectively controlled.
In comparative example 2, the above-mentioned raw materials for green compacts such as refined sand, white sand, high-white sodium sand, high alumina and the like were not added, and the ceramic large plates produced therefrom were inferior in performance index such as flatness, brick shape, antifouling property and the like to those of the ceramic large plates of examples 1 to 3 of the present invention. In addition, in comparative example 2, calcined alumina, wollastonite, barium carbonate and other raw materials are added to replace the raw materials of blank glaze such as refined sand, white sand and the like, the applicability and the exhaust of the blank glaze are poor, the melting point and the crystal phase conversion temperature of a blank layer and a glaze layer are difficult to be consistent, and compared with the embodiment of the invention, the air bubbles and the flatness of the brick surface are poor. By comparison, the invention also can obtain that the raw materials for the green body such as refined sand, white sand, high white sodium sand, high bauxite and the like are cited, so that the raw material performance between the two raw materials is close, the adaptability of the green body glaze is improved, the melting and exhausting time is close, the melting property is better, the matching degree is high, the melting point and the crystal phase conversion temperature of the green body layer and the glaze layer are consistent, and the problems of bubbles and flatness of the brick surface can be well solved.
In comparative example 1, the performance of the glaze slip is unqualified because no glaze dispersant is added, the subsequent glaze spraying process is directly influenced, and the liquid dispergator is added to be matched with auxiliary agents such as sodium tripolyphosphate and the like to produce a synergistic effect, so that the ceramic glaze slip can be diluted, the thixotropy of the ceramic glaze slip is reduced, the flow velocity caused by thixotropy in the storage process is prevented from being slowed, the performance of the glaze slip is improved, and meanwhile, the precipitation of the ceramic glaze slip can be effectively prevented.
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (6)
1. An ultra-flat glaze for a ceramic large plate is characterized by comprising the following effective components in parts by weight:
53-94 parts of hard material;
20-35 parts of soft material;
0-2 parts of zirconium silicate;
0.3-1 part of auxiliary agent;
the hard material comprises the following components in parts by weight:
20-30 parts of refined sand;
10-20 parts of albite;
3-9 parts of potassium feldspar;
15-25 parts of white sand;
5-10 parts of sodium sand;
the soft material comprises the following components in parts by weight:
5-10 parts of air knife kaolin;
10-15 parts of calcined kaolin;
5-10 parts of high alumina;
the auxiliary agent comprises sodium carboxymethyl cellulose, a dispersing agent for glaze and a dispergator; the dispergator is sodium tripolyphosphate; the glaze dispersing agent is a liquid dispergator; the saidThe thickness of the ceramic large plate is 2-20 mm, and the surface area is not less than 1.62m 2 。
2. The ultra-flat glaze for ceramic large plates according to claim 1, comprising the following effective components in parts by weight:
72 parts of hard material;
28 parts of soft material;
1 part of zirconium silicate;
0.45 parts of auxiliary agent.
3. A process for the preparation of solid-colored ceramic slabs using an ultra-flat glaze according to any one of claims 1-2, characterized by the following steps:
s1, preparing a blank: putting the raw material components of the green body into a ball mill, uniformly mixing to obtain slurry, sieving, ageing, removing impurities, spray-drying to obtain powder, pressing the powder to form, and drying in a drying kiln to obtain a green body layer;
s2, preparing ultra-flat glaze: the active ingredients in parts by weight are as follows: sequentially carrying out material proportioning and ball throwing, material ball milling, glaze slurry detection, slurry discharging, iron removal, sieving, storage and ageing for standby to obtain ultra-flat glaze;
and S3, glazing the blank layer through a glaze line, carrying out digital ink-jet, carrying out kiln firing, and carrying out edging to obtain the ceramic large plate.
4. A process for preparing a solid-colored ceramic large plate according to claim 3, wherein the pigment for glaze is added and stirred for half an hour after aging in the preparation process of the ultra-flat glaze.
5. The process for producing a solid ceramic large plate according to claim 4, wherein the amount of the glaze coloring material added is 0 to 5 parts.
6. The process for preparing a solid-color ceramic large plate according to claim 3, wherein in the process of preparing the ultra-flat glaze, the fineness of the glaze slurry is 325 meshes, the screen residue is 0.6-0.8g, and the flow rate is 60-120 s by using a four-viscosity cup.
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