CN115536272B - Wear-resistant glazed brick with good color development, strong penetration and high hardness and preparation process thereof - Google Patents

Wear-resistant glazed brick with good color development, strong penetration and high hardness and preparation process thereof Download PDF

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Publication number
CN115536272B
CN115536272B CN202211244009.8A CN202211244009A CN115536272B CN 115536272 B CN115536272 B CN 115536272B CN 202211244009 A CN202211244009 A CN 202211244009A CN 115536272 B CN115536272 B CN 115536272B
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wear
resistant
glaze
parts
percent
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CN115536272A (en
Inventor
曾权
徐登翔
王正旺
罗文帝
管霞菲
曾立华
张巧燕
李刚
叶行涛
向发清
马占领
谢穗
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Foshan Dongpeng Ceramic Co Ltd
Foshan Dongpeng Ceramic Development Co Ltd
Guangdong Dongpeng Holdings Co Ltd
Qingyuan Nafuna Ceramics Co Ltd
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Foshan Dongpeng Ceramic Co Ltd
Foshan Dongpeng Ceramic Development Co Ltd
Guangdong Dongpeng Holdings Co Ltd
Qingyuan Nafuna Ceramics Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/02Frit compositions, i.e. in a powdered or comminuted form
    • C03C8/04Frit compositions, i.e. in a powdered or comminuted form containing zinc
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/14Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81Coating or impregnation
    • C04B41/89Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Glass Compositions (AREA)

Abstract

The invention discloses a wear-resistant glazed brick with good color development, strong penetration and high hardness and a preparation process thereof, comprising the following steps: A. preparing a ceramic blank, and pressing the ceramic blank; B. spraying a color-developing protective glaze; C. printing color ink according to a preset pattern; D. spraying high-temperature wear-resistant transparent glaze; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 55~78%、Al 2 O 3 5~12%、K 2 O1.5~4%、Na 2 0.5 to 5 percent of O, 5.5 to 15.5 percent of CaO, 0 to 1.2 percent of MgO, 0 to 2 percent of BaO and 3 to 6 percent of ZnO; E. and (5) drying, firing in a kiln, and polishing to obtain the wear-resistant glazed brick. The preparation process provided by the scheme is simple in steps and high in operability, the color development promoting performance, the transparency guaranteeing performance and the wear resistance improving performance are respectively realized through different functional layers, and the polished glazed brick has good color development performance, transparency, hardness and wear resistance by changing the formula structure of each functional layer.

Description

Wear-resistant glazed brick with good color development, strong penetration and high hardness and preparation process thereof
Technical Field
The invention relates to the technical field of building ceramics, in particular to a wear-resistant glazed brick with good color development, strong penetration and high hardness and a preparation process thereof.
Background
The glazed tile is a ceramic wall and floor tile product popular in recent years, and is generally obtained by printing on a green brick or printing after applying a base glaze on the green brick, then applying a layer of glaze, firing in a kiln, and then polishing the glaze layer. The color-coated glass has the effect of underglaze color/in-glaze color, and the printed layer is basically not worn under the protection of the glaze polishing layer; and the polishing treatment leads the product to have high glossiness and good decorative effect.
The existing glazed brick has an underglaze color/in-glaze color structure, so that the glazed layer is required to have certain transparency and color development promoting performance in order to ensure the decoration effect brought by the printing layer, but the glazed brick generally has the transparency and color development promoting performance based on the limitation of a formula structure, the wear resistance and the hardness of the glazed brick are not ideal, and the glazed brick is taken as the top layer of the glazed brick, so that the wear resistance and the hardness of the glazed brick have important significance for the glazed brick.
Since the transparency and color development of the glazed tile are important properties that it is required to achieve, the wear resistance and hardness of the glazed tile are generally ignored in current products of glazed tiles. Although few ceramic manufacturers pay attention to the wear resistance and hardness of the polished glazed brick, the solution is generally to add a wear-resistant protective glaze layer on the top of the polished glaze for solving the wear resistance and hardness of the polished glazed brick, but the formula structure of the wear-resistant protective glaze is generally a high-aluminum system in the prior art, but the high-aluminum system is quite unfavorable for the color development of the polished glazed brick, because the formula structure of the high-aluminum system is generally lower in transparency, if the color development of the polished glazed brick is ensured, the glaze layer is necessarily thin when the wear-resistant protective glaze of the high-aluminum system is used, but the effect of the excessively thin wear-resistant protective glaze on the wear resistance and hardness of the polished glazed brick is quite limited, so that the conventional polished brick also lacks a better technical scheme to realize the compatibility of the transparency, the color development and the wear resistance of the polished brick.
Disclosure of Invention
The invention aims to provide a preparation process of a wear-resistant glazed brick with good color development, strong transparency and high hardness, which has the advantages of simple steps and strong operability, the color development promoting performance, the transparency guaranteeing performance and the wear resistance improving performance are respectively realized through different functional layers, and the glazed brick has good color development performance, transparency, hardness and wear resistance by changing the formula structure of each functional layer.
Another object of the present invention is to provide a wear-resistant glazed tile with good color development, strong transparency and high hardness, which is prepared by the above preparation process, and has good color development, transparency, hardness and wear resistance, so as to overcome the defects in the prior art.
To achieve the purpose, the invention adopts the following technical scheme:
a preparation process of wear-resistant glazed brick with good color development, strong penetration and high hardness comprises the following steps:
A. preparing a ceramic blank, pressing the ceramic blank, and drying to obtain a blank layer;
B. spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer;
C. printing color ink according to a preset pattern to form an inkjet printing layer;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 55~78%、Al 2 O 3 5~12%、K 2 O 1.5~4%、Na 2 0.5 to 5 percent of O, 5.5 to 15.5 percent of CaO, 0 to 1.2 percent of MgO, 0 to 2 percent of BaO and 3 to 6 percent of ZnO;
E. and (3) drying, firing in a kiln, and polishing to obtain the wear-resistant glazed brick with good color development, strong penetration and high hardness.
Preferably, step F is further included, and is located before step D;
the specific steps of the step F are as follows: printing ink jet quantity of 5-50 g/m according to preset pattern 2 Is used for forming an engraving ink layer.
Preferably, in the step D, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, the screen residue is 0.3-0.6%, and the specific gravity of the high-temperature wear-resistant transparent glaze is 1.65-1.85 g/cm 3 The flow speed is 25-38 s, and the glaze spraying amount of the high-temperature wear-resistant transparent glaze is 300-600 g/m 2
Preferably, in the step D, the raw materials of the high-temperature wear-resistant transparent glaze comprise, by mass, 15-25 parts of potassium feldspar, 5-10 parts of albite, 6-10 parts of water-washed kaolin, 2-5 parts of zinc oxide, 40-65 parts of quartz, 2-5 parts of calcined alumina, 0-3 parts of talcum, 5-15 parts of wollastonite and 10-25 parts of transparent frit.
Preferably, in the step B, the chemical components of the chromophoric protective glaze comprise SiO according to mass percent 2 55~70%、Al 2 O 3 4~9%、K 2 O 2~5.5%、Na 2 0.5 to 2.4 percent of O, 8 to 20 percent of CaO, 0.3 to 3.6 percent of MgO and 3 to 8 percent of ZnO.
Preferably, the raw materials of the color-developing protective glaze comprise, by mass, 10-22 parts of potassium feldspar, 6-10 parts of water-washed kaolin, 6-9 parts of zinc oxide, 30-50 parts of quartz, 3-6 parts of calcined alumina, 1.5-3 parts of talcum, 10-18 parts of wollastonite and 8-18 parts of transparent frit.
Preferably, in the step B, the glazing amount of the color-developing protective glaze is 50-150 g/m 2 The specific gravity is 1.05-1.2, and the flow velocity is 11-15 s.
Preferably, in step E, the polishing step is any one of full polishing, half polishing or sweeping polishing.
Preferably, the specific steps of the step A are as follows: preparing a ceramic blank, pressing the ceramic blank, drying and spraying water to obtain a blank layer; wherein the water spraying amount in the water spraying step is 80-150 g/m 2
The wear-resistant glazed brick with good color development, strong permeability and high hardness is prepared by the preparation process of the wear-resistant glazed brick with good color development, strong permeability and high hardness, and the wear resistance of the wear-resistant glazed brick at least reaches grade 2100 r, and the Mohs hardness at least reaches grade 4.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
1. the color development promoting performance is realized through the color development protection glaze layer, the transparency, the hardness and the wear resistance are improved through the high-temperature wear-resistant transparent glaze layer, and the glazed brick has good color development performance, transparency, hardness and wear resistance simultaneously by changing the formula structure of the high-temperature wear-resistant transparent glaze layer.
2. The formula structure of the high-temperature wear-resistant transparent glaze layer is designed into a high-silicon system, the cristobalite is taken as a main crystalline phase, the generation of other hetero-crystalline phases is reduced as much as possible, and the cristobalite with high transparency is taken as a single crystal, so that the transparency of the high-temperature wear-resistant transparent glaze layer is improved; in addition, compared with the glass, the crystal has certain hardness, and can endow the glaze with better wear resistance.
Drawings
FIG. 1 is a schematic view of a hierarchical structure of one embodiment of a wear-resistant glazed tile with good color development, strong penetration and high hardness according to the present invention.
FIG. 2 is a schematic view of a hierarchical structure of another embodiment of a wear-resistant glazed tile with good color development, strong transparency and high hardness according to the present invention.
FIG. 3 is a schematic illustration of the effect of the glaze in example 3 in the process of preparing a wear-resistant glazed tile with good color development, strong penetration and high hardness according to the present invention.
Detailed Description
A preparation process of wear-resistant glazed brick with good color development, strong penetration and high hardness comprises the following steps:
A. preparing a ceramic blank, pressing the ceramic blank, and drying to obtain a blank layer 1;
B. spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer 2;
C. printing color ink according to a preset pattern to form an inkjet printing layer 3;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer 4; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 55~78%、Al 2 O 3 5~12%、K 2 O 1.5~4%、Na 2 0.5 to 5 percent of O, 5.5 to 15.5 percent of CaO, 0 to 1.2 percent of MgO, 0 to 2 percent of BaO and 3 to 6 percent of ZnO;
E. and (3) drying, firing in a kiln, and polishing to obtain the wear-resistant glazed brick with good color development, strong penetration and high hardness.
Since the transparency and color development of the glazed tile are important properties that it is required to achieve, the wear resistance and hardness of the glazed tile are generally ignored in current glazed tile products.
In order to solve the problem of neglected wear resistance and hardness in the existing polished glazed brick products, the technical scheme provides a preparation process of the wear-resistant polished glazed brick with good color development, strong penetration and high hardness, which comprises four steps of A (blank making), B (color development protection glaze spraying), C (color printing ink) and D (high-temperature wear-resistant transparent glaze spraying). Firstly, the color development promoting performance is realized through the color development protection glaze layer 2, the improvement of transparency, hardness and wear resistance is realized through the high-temperature wear-resistant transparent glaze layer 4, and the glazed brick has good color development performance, transparency, hardness and wear resistance simultaneously by changing the formula structure of the high-temperature wear-resistant transparent glaze layer 4. It should be noted that, the blank layer 1 in the present embodiment is formed by pressing and drying a ceramic blank that is conventional in the ceramic field, and the inkjet printing layer 3 is formed by printing color ink that is conventional in the ceramic field according to a preset pattern through inkjet printing, and the ceramic blank and the color ink are not further described herein.
The method has the advantages that the color protection glaze plays a role in promoting color development of the color ink, so that the oily color ink is prevented from poking the water-soluble color protection glaze, the normal realization of the color development performance is affected, and the method is improved in the steps of distributing the color protection glaze and the color ink. Specifically, the color-development protective glaze is sprayed on the top of the green body layer 1, and color ink is printed on the surface of the glaze layer after the color-development protective glaze is dried, so that the prepared wear-resistant glazed brick has good color-development effect.
Further, the transparency in the glaze polishing layer of the existing glaze polishing brick is realized mainly by introducing enough glass (namely, amorphous) into the glaze layer, so that the glaze polishing layer can show a transparent sense meeting the production requirement; however, the realization of the sense of penetration and the realization of the wear resistance are contradictory, because the glass quality in the glaze layer can affect the improvement of the wear resistance, and the more the glass quality is, the lower the wear resistance is, so the consideration of the formula structure of the high-temperature wear-resistant transparent glaze in the scheme cannot be based on the principle. In addition, in the prior art, in order to realize the wear resistance of the glaze, the formula structure of the glaze is generally a high-aluminum system, but the formula structure of the high-aluminum system is generally low in transparency, because aluminum oxide is an opaque material, if the color development of the polished glazed brick is to be ensured, the glaze layer of the glaze is required to be thin when the glaze of the high-aluminum system is used, but the effect of the excessively thin wear-resistant protective glaze on the wear resistance and hardness of the polished glazed brick is very limited, so that the consideration of the formula structure of the high-temperature wear-resistant transparent glaze in the scheme cannot be based on the principle.
Therefore, in order to be compatible with the high transparency and good wear resistance of polished glaze, the formula structure of the high-temperature wear-resistant transparent glaze layer 4 is designed into a high-silicon system, and the cristobalite is used as a main crystalline phase, so that the generation of other hetero-crystalline phases is reduced as much as possible. The high-temperature wear-resistant transparent glaze in the scheme uses the cristobalite with high transparency as a single crystal, so that the transparency of the high-temperature wear-resistant transparent glaze layer 4 can be effectively improved; in addition, compared with the vitreous, the crystal has certain hardness, and can endow the high-temperature wear-resistant transparent glaze layer 4 with better wear resistance.
Furthermore, since the crystals in the glaze are not generated during firing, the glaze is prepared by using the raw materials with the crystals, and therefore, during firing, only a small amount of cosolvent is needed to bond the crystals in the raw materials, thereby reducing the use of the cosolvent such as CaO, mgO, baO and ZnO in the high-temperature wear-resistant transparent glaze, and further improving the wear resistance of the high-temperature wear-resistant transparent glaze layer 4 due to the fact that the solvent material is not wear-resistant, the use of the cosolvent is reduced.
Furthermore, because the cosolvent in the formula structure is rapidly reduced, the melting temperature of the glaze is increased, melting or difficult melting cannot occur in the firing process of the glazed brick, and by utilizing the characteristics, the thickness of the high-temperature wear-resistant transparent glaze can be piled up in a curtain coating mode, so that the hardness and wear resistance of the wear-resistant transparent glaze are further improved, and the hardness and wear resistance of the glazed brick can also meet the production requirements no matter the surface of the glazed brick is subjected to full polishing or polishing treatment in a sweeping/half polishing mode.
Further, step F is included, and is located before step D;
the specific steps of the step F are as follows: printing ink jet quantity of 5-50 g/m according to preset pattern 2 Is used to form the engraving ink layer 5.
In order to improve the three-dimensional decorative effect of the wear-resistant glazed brick in the scheme, the bottom of the high-temperature wear-resistant transparent glaze layer 4 is provided with the engraving ink layer 5, namely the engraving ink layer 5 can be positioned between the ink-jet printing layer 3 and the high-temperature wear-resistant transparent glaze layer 4, the engraving ink and the high-temperature wear-resistant transparent glaze are matched to form the concave-convex effect, the mechanism for generating concave-convex textures is that the engraving ink is oily, the high-temperature wear-resistant transparent glaze is aqueous, the oily ink contacts with the aqueous glaze to generate tension, the aqueous glaze which is distributed subsequently is physically arranged by the engraving ink, so that the concave-convex textures are formed on the high-temperature wear-resistant transparent glaze layer 4, and the three-dimensional sense of the wear-resistant glazed brick is enhanced.
Preferably, step G is further included, and is located after step a;
the specific steps of the step G are as follows: coating the ground coat by spraying to form a ground coat layer 6; wherein the chemical components of the ground coat comprise SiO according to mass percent 2 55~65%、Al 2 O 3 25~30%、K 2 O 3~4%、Na 2 2 to 3 percent of O, 0.5 to 1 percent of CaO, 1 to 2 percent of MgO and ZrO 2 3 to 10 percent. In a preferred embodiment of the technical scheme, a ground coat layer 6 formed by firing ground coat can be arranged at the top of the green body layer 1, the ground coat layer 6 can cover the green body layer 1, the green body layer 1 is prevented from affecting the color development of the ink-jet printing layer 3, and the color development effect of the polished tile is further improved.
Preferably, the raw materials of the base glaze comprise, by mass, 30-40 parts of potassium feldspar, 10-15 parts of albite, 3-10 parts of water-washed kaolin, 10-30 parts of calcined kaolin, 5-15 parts of quartz, 5-15 parts of calcined alumina, 3-5 parts of talcum, 2-6 parts of limestone and 5-15 parts of zirconium silicate.
Preferably, the specific gravity of the ground coat is 1.85-1.95 g/cm 3 The flow speed is 25-45 s, the glaze spraying amount is 300-700 g/m 2
Preferably, step H is further included, and is located after step E;
the specific steps of the step H are as follows: and coating super-clean and bright wax water on the top of the polished wear-resistant polished glazed brick to form a super-clean and bright wax layer 7. It should be noted that, the wear-resistant polished glazed brick in this scheme can also set up and use super clean bright wax layer 7 at its top, and it is formed by super clean bright wax water coating that ceramic field is commonly used, can play the effect that promotes polished glazed brick glossiness.
Further more, in the step D, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, the screen residue is 0.3 to 0.6 percent, and the specific gravity of the high-temperature wear-resistant transparent glaze is 1.65 to 1.85g/cm 3 The flow speed is 25-38 s, and the glaze spraying amount of the high-temperature wear-resistant transparent glaze is 300-600 g/m 2
In a preferred embodiment of the technical scheme, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, and the screen residue is 0.3-0.6%, so that a compact glaze layer is formed, bubbles and pinholes in the glaze layer are avoided, and the surface of the glaze layer has a good glaze effect. Furthermore, the specific gravity and the flow rate of the high-temperature wear-resistant transparent glaze are controlled, and a glaze layer with ideal thickness can be piled on the top of the glazed brick on the premise of ensuring the stable glazing quality.
In addition, when the surface of the ink-jet printing layer 3 is printed with the engraving ink, on the premise that the enamel spraying amount is stable, the oily engraving ink can smoothly pull out the high-temperature wear-resistant transparent enamel with water, so that the three-dimensional concave-convex effect is realized. If the specific gravity is too high and the flow speed is too low, the refined carving ink can not smoothly pull out the glaze layer; on the contrary, if the specific gravity is too low and the flow speed is too high, the maintenance of the stripping effect of the glaze layer is not facilitated, and the third dimension of the glazed brick is easily reduced.
Furthermore, the glaze spraying amount of the high-temperature wear-resistant transparent glaze in the scheme is 300-600 g/m 2 The hardness and the wear resistance of the fired glazed brick are guaranteed, so that the hardness and the wear resistance of the glazed brick can meet the production requirement no matter the surface of the glazed brick is subjected to full polishing or polishing treatment in a sweeping/half polishing manner.
Preferably, the specific gravity of the high-temperature wear-resistant transparent glaze is 1.7-1.75 g/cm 3 The flow rate is 28-33 s.
In the step D, the raw materials of the high-temperature wear-resistant transparent glaze comprise, by mass, 15-25 parts of potassium feldspar, 5-10 parts of albite, 6-10 parts of water-washed kaolin, 2-5 parts of zinc oxide, 40-65 parts of quartz, 2-5 parts of calcined alumina, 0-3 parts of talcum, 5-15 parts of wollastonite and 10-25 parts of transparent frit.
In a more preferred embodiment of the present technical solution, the raw material proportion of the high-temperature wear-resistant transparent glaze is shown by the above raw materials in parts by weight, which is not limited herein.
Preferably, the chemical components of the transparent frit comprise SiO in percentage by mass 2 45~65%、Al 2 O 3 6~15%、K 2 O 3~7%、Na 2 0 to 2.5 percent of O, 6 to 15 percent of CaO, 0 to 1 percent of MgO, 0 to 2 percent of BaO and 3 to 12 percent of ZnO. The transparent frit is prepared by melting and water quenching according to the formula, and has the characteristics of high transparency, high initial melting temperature and high hardness.
Further described, in the step B, the chemical components of the chromophoric protective glaze comprise SiO according to the mass percentage 2 55~70%、Al 2 O 3 4~9%、K 2 O 2~5.5%、Na 2 0.5 to 2.4 percent of O, 8 to 20 percent of CaO, 0.3 to 3.6 percent of MgO and 3 to 8 percent of ZnO.
In a preferred embodiment of the technical scheme, the chemical components of the color-developing protective glaze are also optimized, so that the formula structure of the color-developing protective glaze layer 2 is matched with the formula structure of the high-temperature wear-resistant transparent glaze layer 4, the color-developing effect of the color-developing protective glaze layer 2 on the ink-jet printing layer 3 is improved, the production requirement is met, and the combination property of the color-developing protective glaze layer 2 and the high-temperature wear-resistant transparent glaze layer 4 can be improved effectively.
Specifically, the scheme leads the chemical components of the color protection glaze layer 2 to be SiO 2 And Al 2 O 3 The content of the glaze layer is matched with the formula structure of the high-temperature wear-resistant transparent glaze layer 4, so that the glaze layer combination property of the glazed brick is improved; in addition, when the high-temperature wear-resistant transparent glaze layer 4 is coated on the top of the color-development protective glaze layer 2 printed with color ink, the color-development protective glaze layer 2 and the high-temperature wear-resistant transparent glaze layer 4 with mutually matched formula structures can effectively avoid the occurrence of the low-temperature eutectic phenomenon in the ceramic field, and the low-temperature eutectic phenomenon can lead the glaze effect with concave-convex fluctuation, which is pulled out by the high-temperature wear-resistant transparent glaze layer 4 under the action of refined carving ink, to be easier to melt in the firing processThe three-dimensional effect of the polished glazed brick is reduced.
Furthermore, the content of the fluxing agent in the formula structure of the color protection glaze can influence the wear resistance, hardness and other glaze properties of the polished glazed brick, so the scheme adjusts the content of three components of CaO, mgO and ZnO which play a fluxing role in the formula structure, and the content of the three components at least accounts for 11.3% of the total formula structure, thereby the formula structure of the color protection glaze layer 2 is in a calcium-magnesium system, and a better chemical component environment is provided for color development of color ink.
Further, the raw materials of the color-developing protective glaze comprise, by mass, 10-22 parts of potassium feldspar, 6-10 parts of water-washed kaolin, 6-9 parts of zinc oxide, 30-50 parts of quartz, 3-6 parts of calcined alumina, 1.5-3 parts of talcum, 10-18 parts of wollastonite and 8-18 parts of transparent frit.
In a preferred embodiment of the technical scheme, the color-development protective glaze can be prepared by taking potassium feldspar, water-washed kaolin, quartz, calcined alumina, talcum, wollastonite and transparent frit as raw materials, so that the color-development protective glaze layer 2 has chemical components with a required formula structure, the raw materials are simple and easy to obtain, and the production difficulty and the production cost of the color-development protective glaze are further reduced.
Preferably, the chemical components of the transparent frit comprise SiO in percentage by mass 2 45~65%、Al 2 O 3 6~15%、K 2 O 3~7%、Na 2 0 to 2.5 percent of O, 6 to 15 percent of CaO, 0 to 1 percent of MgO, 0 to 2 percent of BaO and 3 to 12 percent of ZnO. The transparent frit is prepared by melting and water quenching according to the formula, and has the characteristics of high transparency, good color development on color ink, high initial melting temperature and high hardness.
Further more, in the step B, the glazing amount of the color-developing protective glaze is 50-150 g/m 2 The specific gravity is 1.05-1.2, and the flow velocity is 11-15 s.
In a preferred embodiment of the present technical solution, the application amount of the color-developing protective glaze is preferably 50 to 150g/m 2 The specific gravity is limited to 1.05-1.2 and the flow rate is limitedThe atomization effect of the color-development protective glaze is guaranteed by setting the color-development protective glaze to be 11-15 s, and the uniform spraying of the color-development protective glaze can be effectively guaranteed.
Further, in the step E, the polishing step is any one of full polishing, half polishing or sweeping polishing.
Because the high-temperature wear-resistant transparent glaze layer 4 is distributed on the top of the glazed brick in a curtain coating mode, rather than in a glaze spraying mode, the stacking of the thickness of the glaze layer can be realized by increasing the curtain coating amount, so that the hardness and wear resistance of the glazed brick can meet the production requirement after the surface of the glazed brick is polished in a full-polishing or sweeping/half-polishing mode, and the production of the glazed brick can meet different polishing modes.
Further described, the specific steps of step a are: preparing a ceramic blank, pressing the ceramic blank, drying and spraying water to obtain a blank layer 1; wherein the water spraying amount in the water spraying step is 80-150 g/m 2
In a preferred embodiment of the present technical solution, the green body layer 1 needs to be sprayed with water after drying, so that the surface of the dried green body layer 1 can be wetted, and defects such as prickly heat and the like occurring when the primer is sprayed are reduced. If the water spraying amount is too small, the prickly heat reducing effect is not great; if the water spraying amount is too large, the water content of the blank layer 1 is increased, the strength of the blank layer 1 is reduced, and the loss is affected.
The wear-resistant glazed brick with good color development, strong permeability and high hardness is prepared by the preparation process of the wear-resistant glazed brick with good color development, strong permeability and high hardness, wherein the wear-resistant performance of the wear-resistant glazed brick at least reaches grade 2100 r, and the Mohs hardness at least reaches grade 4.
The scheme also provides the wear-resistant glazed brick prepared by the preparation method, which has good color development, high transparency, wear resistance reaching at least grade 4 2100 turns, mohs hardness reaching at least grade 4, and higher hardness and wear resistance.
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
A. Preparing a ceramic blank, pressing the ceramic blank, and drying to obtain a blank layer;
B. spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer; wherein the chemical components of the chromophoric protective glaze comprise SiO according to the mass percentage 2 55%、Al 2 O 3 5%、K 2 O 5.5%、Na 2 2.4% of O, 20% of CaO, 3.6% of MgO, 8% of ZnO and the balance of other trace oxides;
C. printing color ink according to a preset pattern to form an inkjet printing layer;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer; wherein, the glazing quantity of the high-temperature wear-resistant transparent glaze is 300g/m 2 The high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 2 55%、Al 2 O 3 12%、K 2 O 4%、Na 2 O5%, caO 15.5%, mgO 1%, baO 2% and ZnO 5%, the balance being other trace oxides;
E. and (5) drying, firing in a kiln, and fully polishing to obtain the polished glazed brick I.
Example 2
A. Preparing a ceramic blank, pressing the ceramic blank, and drying to obtain a blank layer;
B. spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer; wherein the chemical components of the chromophoric protective glaze comprise SiO according to the mass percentage 2 64%、Al 2 O 3 9%、K 2 O 3.5%、Na 2 0.5% of O, 15% of CaO, 1.5% of MgO, 6% of ZnO and the balance of other trace oxides;
C. printing color ink according to a preset pattern to form an inkjet printing layer;
F. printing ink jet quantity of 30g/m according to preset pattern 2 Forming an engraving ink layer;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer; wherein, the glazing quantity of the high-temperature wear-resistant transparent glaze is 500g/m 2 The high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 2 70%、Al 2 O 3 10%、K 2 O 3.5%、Na 2 1.5% of O, 5.5% of CaO, 1.2% of MgO, 2% of BaO and 6% of ZnO, and the balance of other trace oxides;
E. and (5) drying, firing in a kiln, and sweeping and polishing to obtain a polished glazed brick II.
Example 3
A. Preparing a ceramic blank, pressing the ceramic blank, drying and spraying water to obtain a blank layer; wherein the water spraying amount in the water spraying step is 100g/m 2
G. Coating a ground coat by spraying to form a ground coat layer; wherein, the glaze spraying amount of the ground coat is 300g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The raw materials of the base glaze comprise, by mass, 30 parts of potassium feldspar, 10 parts of albite, 3 parts of water-washed kaolin, 10 parts of calcined kaolin, 5 parts of quartz, 5 parts of calcined alumina, 3 parts of talcum, 2 parts of limestone and 5 parts of zirconium silicate.
B. Spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer; wherein the chemical components of the chromophoric protective glaze comprise SiO according to the mass percentage 2 70%、Al 2 O 3 4%、K 2 O 5.5%、Na 2 2.4% of O, 9.4% of CaO, 2.8% of MgO and 5.6% of ZnO, and the balance of other trace oxides;
C. printing color ink according to a preset pattern to form an inkjet printing layer;
F. printing ink jet quantity of 50g/m according to preset pattern 2 Forming an engraving ink layer;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer; wherein, the glaze spraying amount of the high-temperature wear-resistant transparent glaze is 600g/m 2 The high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 2 78%、Al 2 O 3 5%、K 2 O 1.5%、Na 2 0.5% of O, 10.5% of CaO, 0.2% of MgO, 1% of BaO and 3% of ZnO, and the balance of other trace oxides;
E. and (3) drying, firing in a kiln, and sweeping to obtain a glazed brick III, wherein the glaze effect is shown in figure 3.
Performance testing
Glazed tiles were prepared according to the preparation process in examples 1-3 and ensure that the process parameters not mentioned in the steps of examples 1-3 were consistent. Observing the glaze effect of the glazed brick, and carrying out the conventional wear resistance and Mohs hardness in the ceramic field on the glazed brick in the embodiment, wherein the inspection method comprises the following steps of:
abrasion resistance measurement: the method of GB/T3810.7-2016 ceramic tile test, part 7, was used: the method for testing the abrasion resistance of the glazed brick surface in the method for testing the abrasion resistance of the glazed surface of the product.
Mohs hardness: the sample tile was placed smoothly on a rigid support with the facing up. Standard ores with different Morse values are selected from small to large to scratch the surface of the sample, the surface of the sample is scratched evenly and vertically by using a new cutting edge of the ore, the moderate force application is noted, and the cutting edge of the standard ore is not broken due to the overlarge force application to form double-line or multi-line scratch marks. The lowest hardness value which can generate obvious scratch just is taken as a test result, and the lowest value in all test values of the sample is taken as a test result.
The results of the performance tests are shown in table 1 below:
TABLE 1 Performance test results for different glazed tiles
From the performance test results, it can be known that the glazed brick prepared by the preparation process of the scheme has good color development, high transparency, wear resistance of at least 4 grade 2100 turns, mohs hardness of at least 4 grade and higher hardness and wear resistance.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (9)

1. The preparation process of the wear-resistant glazed brick with good color development, strong penetration and high hardness is characterized by comprising the following steps:
A. preparing a ceramic blank, pressing the ceramic blank, and drying to obtain a blank layer;
B. spraying a color-developing protective glaze, and drying to form a color-developing protective glaze layer;
C. printing color ink according to a preset pattern to form an inkjet printing layer;
D. spraying high-temperature wear-resistant transparent glaze to form a high-temperature wear-resistant transparent glaze layer; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 55~78%、Al 2 O 3 5~12%、K 2 O1.5~4%、Na 2 0.5 to 5 percent of O, 5.5 to 15.5 percent of CaO, 0 to 1.2 percent of MgO, 0 to 2 percent of BaO and 3 to 6 percent of ZnO, and the glaze spraying amount of the high-temperature wear-resistant transparent glaze is 300 to 600g/m 2
E. Drying, firing in a kiln, and polishing to obtain the wear-resistant glazed brick with good color development, strong penetration and high hardness;
in the step B, the chemical components of the chromophoric protective glaze comprise SiO according to the mass percentage 2 55~70%、Al 2 O 3 4~9%、K 2 O 2~5.5%、Na 2 0.5 to 2.4 percent of O, 8 to 20 percent of CaO, 0.3 to 3.6 percent of MgO and 3 to 8 percent of ZnO.
2. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: step F is also included, and is located before step D;
the specific steps of the step F are as follows: printing ink jet quantity of 5-50 g/m according to preset pattern 2 Is used for forming an engraving ink layer.
3. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: in the step D, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, the screen residue is 0.3-0.6%, and the specific gravity of the high-temperature wear-resistant transparent glaze is 1.65-1.85 g/cm 3 The flow rate is 25-38 s.
4. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: in the step D, the raw materials of the high-temperature wear-resistant transparent glaze comprise, by mass, 15-25 parts of potassium feldspar, 5-10 parts of albite, 6-10 parts of water-washed kaolin, 2-5 parts of zinc oxide, 40-65 parts of quartz, 2-5 parts of calcined alumina, 0-3 parts of talcum, 5-15 parts of wollastonite and 10-25 parts of transparent frit.
5. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: the raw materials of the color-developing protective glaze comprise, by mass, 10-22 parts of potassium feldspar, 6-10 parts of water-washed kaolin, 6-9 parts of zinc oxide, 30-50 parts of quartz, 3-6 parts of calcined alumina, 1.5-3 parts of talcum, 10-18 parts of wollastonite and 8-18 parts of transparent frit.
6. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: in the step B, the glazing amount of the color-developing protective glaze is 50-150 g/m 2 The specific gravity is 1.05-1.2, and the flow velocity is 11-15 s.
7. The process for preparing the wear-resistant glazed tile with good color development, strong penetration and high hardness according to claim 1, which is characterized in that: in the step E, the polishing step is any one of full polishing, half polishing or sweeping polishing.
8. The process for producing a wear-resistant glazed tile having excellent color development, strong transparency and high hardness according to claim 1The process is characterized in that: the specific steps of the step A are as follows: preparing a ceramic blank, pressing the ceramic blank, drying and spraying water to obtain a blank layer; wherein the water spraying amount in the water spraying step is 80-150 g/m 2
9. The wear-resistant glazed brick with good color development, strong permeability and high hardness is characterized by being prepared by the preparation process of the wear-resistant glazed brick with good color development, strong permeability and high hardness according to any one of claims 1-8, wherein the wear-resistant performance of the wear-resistant glazed brick is at least up to grade 2100 r, and the Mohs hardness is at least up to grade 4.
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