CN114956870A - Preparation method of gray black polished thin rock plate - Google Patents

Preparation method of gray black polished thin rock plate Download PDF

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Publication number
CN114956870A
CN114956870A CN202210693052.6A CN202210693052A CN114956870A CN 114956870 A CN114956870 A CN 114956870A CN 202210693052 A CN202210693052 A CN 202210693052A CN 114956870 A CN114956870 A CN 114956870A
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China
Prior art keywords
parts
glaze
ink
frit
gray
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CN202210693052.6A
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Inventor
潘超宪
古战文
车柳
许永来
王永强
朱立洪
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Guangdong Dongwei New Material Co ltd
Dongguan City Wonderful Ceramics Industrial Park Co Ltd
Jiangxi Hemei Ceramics Co Ltd
Jiangxi Wonderful Ceramics Co Ltd
Original Assignee
Guangdong Dongwei New Material Co ltd
Dongguan City Wonderful Ceramics Industrial Park Co Ltd
Jiangxi Hemei Ceramics Co Ltd
Jiangxi Wonderful Ceramics Co Ltd
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Priority to CN202210693052.6A priority Critical patent/CN114956870A/en
Publication of CN114956870A publication Critical patent/CN114956870A/en
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    • 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
    • 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
    • C03C8/06Frit compositions, i.e. in a powdered or comminuted form containing halogen
    • 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
    • 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
    • C03C8/20Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions containing titanium compounds; containing zirconium compounds
    • 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
    • C03C8/22Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions containing two or more distinct frits having different compositions
    • 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
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/85Coating or impregnation with inorganic materials
    • C04B41/86Glazes; Cold glazes
    • 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

Abstract

The invention relates to a preparation method of a gray black polished thin rock plate. The method comprises the following steps: the method comprises the steps of firstly, rolling a biscuit; polishing the green body, and removing coarse particle powder on the surface of the green body; thirdly, applying water-proof ground glaze in an ink-jet printing mode; fourthly, surface pattern decoration is carried out in an ink-jet printing mode; fifthly, spraying the bimodal glaze by using a bell jar glaze sprayer, wherein the bimodal glaze is prepared from fine powder glaze, frit particle coarse powder and a composite additive solution; the glazing amount is 800g-1300g/m 2 (ii) a Sixthly, adopting a hot air dryerPre-drying at 120-140 ℃ for 5 min; firing the stean at the maximum temperature of 1195 ℃ for a firing period of 95 minutes; and the pressure of the polishing grinding head is less than 1.5 MPa.

Description

Preparation method of gray black polished thin rock plate
Technical Field
The invention belongs to the technical field of building ceramics, and particularly relates to a preparation method of a gray black polished thin rock plate.
Background
The thin ceramic rock plate is a ceramic product with large specification and thin thickness. Compared with the traditional architectural ceramic tile, the area of a single chip is generally not less than 1.92 square meters in specification, but the thickness of the ceramic tile is usually 3-6 mm, which is only 1/2-1/4 of the thickness of the common ceramic tile. In recent years, under the promotion of the national policy of 'double-falling', the ceramic thin rock plate becomes a core product for realizing industrial upgrading of a plurality of architectural ceramic enterprises. The conventional ceramic thin rock plate product mainly comprises a matte surface and a polished surface, the preparation process of the matte surface thin rock plate is relatively mature, the product can be combined from light to deep in different colors such as red, yellow, blue, green and black, the color gamut is wide, and the development requirements of products with different color systems can be met; however, the polished thin rock plate products are mainly light color due to the thin property of the ceramic thin rock plate, and the problems of glaze contraction, glaze stripping, pits, poor glazing flatness, poor transparency of a glaze layer and the like often occur due to the deep color of the products and the large dosage of oily ink used for surface pattern decoration, and the production difficulty is large, so the problems become pain points and difficulties in the ceramic rock plate industry.
CN109867446B discloses a super-flat frit dry-particle glaze fully-polished brick and a preparation method thereof, and aims to provide a preparation method of the super-flat frit dry-particle glaze fully-polished brick and the super-flat frit dry-particle glaze fully-polished brick prepared by the preparation method. The preparation method adopted by the technical scheme comprises the following steps: the method comprises the steps of distributing frit dry grain glaze on the surface of a green brick and fixing the frit dry grain glaze; the frit dry particle glaze comprises the following chemical components: by mass, SiO 2 54~58%、Al 2 O 3 6~11%、CaO10~13%、MgO0.4~0.8%、K 2 O5~7.0%、Na 2 1.0-2.5% of O, 10-13% of ZnO, 1.0-2.5% of BaO1, and loss on ignition: 0.2-0.5%; the particle composition of the frit dry particle glaze is as follows: 60 meshes: 45% -55%, 60-80 mesh: 25-35%, 80-100 mesh: 10-15%, 100-140 mesh: 2% -6%, 140 meshes below: less than or equal to 5 percent; the glaze distribution amount of the frit dry particle glaze is 800-1200 g/m 2 (ii) a Sintering and polishing the adobe obtained in the step; the surface of the super-flat frit dry particle glaze fully-polished brick is provided with a transparent glaze layer, the thickness of the transparent glaze layer before polishing is 0.4-0.6 mm, and the thickness after polishing is 0.2-0.4 mm. The disadvantages are as follows: the preparation method mainly comprises the steps of distributing the dry particle glaze of the fritted block on the surface of a green brick and fixing the dry particle glaze of the fritted block, namely, adopting a dry particle polishing process, wherein when the process is used in a thin rock plate, the specific gravity of the overglaze is 1.40-1.45 (the water content is about 58%) according to conventional parameters, and the glazing amount is 400-600 g/m 2 Simultaneously applying glue on the green body and applying a fixing agent after the fusion cake dry particle glaze is distributed, wherein the total application amount of the two layers of glue is 35-120 g/m 2 Because the two working procedures of applying the surface glaze and applying glue are introduced with large water content, when the thin rock plate is applied in the production of the thin rock plate, the thin rock plate blank can rapidly reduce the strength, and the blank body is cracked and even burnt into a blank and the like to cause serious loss. Meanwhile, the particle composition of the frit dry granular glaze adopted by the preparation method is as follows: 60 meshes: 45% -55%, 60-80 mesh: 25-35%, 80-100 mesh: 10-15%, 100-140 mesh: 2% -6%, 140 meshes below: less than or equal to 5 percent; on glaze orThe selection of dry particle grading follows the method of continuous grading particles generally adopted by the industry, and the adoption of continuous grading easily forms particle agglomeration, thereby causing abnormal problems of glaze shrinkage, uneven glaze layer and the like.
Disclosure of Invention
The invention aims to provide a method for preparing a gray-black polished thin rock plate, which solves the problems of cracking and blank explosion of a blank body easily caused by high water content introduced by a wet glaze spraying process in the production of a deep-gray black polished thin rock plate, and solves the problems of glaze shrinkage and poor transparency of a glaze layer caused by deep color of a product and large using amount of oily ink used for surface pattern decoration of the deep-gray black polished thin rock plate.
The technical scheme of the invention is that the preparation method of the gray black polished thin rock plate is characterized by comprising the following steps:
the method comprises the steps of firstly, pressing a biscuit;
polishing the green body, and removing coarse particle powder on the surface of the green body;
thirdly, applying water-proof ground glaze in an ink-jet printing mode;
fourthly, surface pattern decoration is carried out in an ink-jet printing mode;
fifthly, spraying the bimodal glaze by using a bell jar glaze sprayer, wherein the bimodal glaze is prepared from fine powder glaze, frit particle coarse powder and a composite additive solution; the glazing amount is 800g-1300g/m 2
Sixthly, pre-drying by using a hot air dryer at the pre-drying temperature of 120-140 ℃ for 5 min;
firing the stean at the maximum temperature of 1195 ℃ for a firing period of 95 minutes;
and the pressure of the polishing grinding head is less than 1.5 MPa.
Preferably, the method comprises the following steps: and thirdly, the waterproof ground glaze is oily ink, color ink, functional ink or a combination of the color ink and the functional ink are selected according to the black tone requirement of the product, the average gray level is adopted in an ink jet file channel, double-channel printing is carried out, the influence of the fluctuation of the state of a spray head on the glaze spraying effect is reduced, and the ink is ensured to uniformly cover the surface of the thin blank.
Preferably, the method comprises the following steps: and step four, the color types of the ink for surface pattern decoration are mainly blue, brown, scarlet, orange and black 5, the total gray level of a black channel is not less than 100, the total gray level of blue, yellow, orange and black channels is not less than 150, and the color system is ensured by adopting a large-ink-volume printing gray level in ink jetting.
Preferably, the method comprises the following steps: the particle distribution of the fine powder glaze of the bimodal graded glaze is D90 being 15 +/-3 mu m, the initial melting point temperature is 850-900 ℃, the particle distribution of the coarse powder frit particles of the bimodal graded glaze is D90 being 100 +/-10 mu m, and the initial melting point temperature is 1000-1050 ℃.
Preferably, the method comprises the following steps: the fine powder glaze of the bimodal graded glaze consists of the following components in parts by weight: 4 parts of calcined zinc oxide, 8 parts of diopside, 10 parts of calcium carbonate, 15 parts of G1273 frit, 40 parts of transparent frit, 13 parts of albite, 7 parts of scraper soil, 3 parts of superfine quartz, 0.3 part of sodium carboxymethylcellulose and 0.7 part of sodium hexametaphosphate;
the frit particle coarse powder of the bimodal graded glaze consists of the following components in parts by weight: 15 parts of raw zinc oxide, 33 parts of potassium powder, 4 parts of potassium nitrate, 20 parts of wollastonite, 3 parts of calcite, 5 parts of fluorite, 15 parts of quartz powder, 9 parts of scraper soil and 3 parts of glass slag;
the composite additive solution of the bimodal graded glaze consists of the following components in parts by weight: 50 parts of polyethylene glycol, 12 parts of methyl silicone oil, 10 parts of emulsifier, 10 parts of dispersant, 5 parts of polyacrylamide, 10 parts of BYK-333 leveling agent and 3 parts of sodium hexametaphosphate.
Preferably, the method comprises the following steps: the G1273 frit in the fine powder glaze has a linear thermal expansion coefficient of 12.73 multiplied by 10 when the temperature range is 30-400 DEG C -6 The frit with the high expansion coefficient at the temperature of/° C comprises the following chemical components in parts by weight: SiO 2 2 48.52、Al 2 O 3 19.67、CaO8.67、MgO1.02、K 2 O5.87、Na 2 O16.21, 0.04% burn.
Preferably, the method comprises the following steps: the transparent frit in the fine powder glaze has the initial melting point temperature of more than 1100 ℃, and comprises the following chemical components in parts by weight:
SiO 2 53.55、Al 2 O 3 11.88、Fe 2 O 3 0.13、CaO10.68、MgO2.7、K 2 O2.92、Na 2 O3.12、ZnO6.23、TiO 2 0.05、B 2 O 3 0.21, BaO8.11, 0.42 of causticity.
Preferably, the method comprises the following steps: the mesh number and the group number of the polishing grinding heads are set as follows:
Figure BDA0003701047770000031
preferably, the method comprises the following steps: the polishing, the mesh number and the group number of the polishing grinding heads are alternatively selected from one of the following:
Figure BDA0003701047770000032
Figure BDA0003701047770000033
Figure BDA0003701047770000034
Figure BDA0003701047770000041
Figure BDA0003701047770000042
preferably, the method comprises the following steps: and step (iii) of selectively selecting one of the following polishing head pressures for said polishing:
①1.1Mpa;
②1.2Mpa;
③1.3Mpa;
④1.4Mpa;
the pressure of the polishing grinding head is less than 1.5 MPa.
Compared with the prior art, the invention has the beneficial effects that:
the bottom glaze adopted by the invention is oily ink bottom glaze, has a water-proof effect, can effectively reduce the water infiltration amount of the thin rock plate blank in the process implementation process, reduces the influence of the water of the glaze on the blank strength, and provides a powerful guarantee for the control of the thin blank conveying process.
The transparent glaze adopted by the invention is a bimodal graded glaze, and by utilizing the characteristics of the grading difference of the two glazes, after the product finishes glaze pouring and is transferred to the subsequent process, fine powder in the glaze layer is inclined to the middle lower layer, frit particles are inclined to the middle layer, and the frit particles play a meshing and fixing role in the glaze layer, so that the glaze layer is more uniformly stressed, and the defects of avoiding glaze avoidance, pits, cracking, glaze shrinkage, glaze rolling and the like in the vibration environment and the drying process of the thick glaze layer are avoided.
The composite additive solution has water and oil properties, and enables the glaze and the ink to have good compatibility when the glaze is covered on deep gray and black large-ink-volume products according to a similar compatibility principle, so that the quality problem of glaze avoidance caused by large using amount of oil-based ink-jet ink is solved.
Detailed Description
The invention will be further described in detail with reference to the following examples:
[ example 1 ] A method for producing a polycarbonate
The preparation method of the gray black polished thin rock plate comprises the following steps:
the method comprises the steps of firstly, rolling a biscuit;
polishing the green body, and removing coarse particle powder on the surface of the green body;
thirdly, applying water-proof ground glaze in an ink-jet printing mode;
thirdly, the waterproof ground glaze is oily ink, color ink, functional ink or a combination of the color ink and the functional ink are selected according to the black tone requirement of the product, the average gray level is adopted in an ink jet file channel, double-channel printing is carried out, the influence of the fluctuation of the state of a spray head on the glaze spraying effect is reduced, and the ink is ensured to uniformly cover the surface of the thin blank;
fourthly, surface pattern decoration is carried out in an ink-jet printing mode;
fourth, the color types of the ink for surface pattern decoration are mainly blue, brown, scarlet, orange and black, the total gray level of a black channel is not less than 100, the total gray level of blue, yellow, orange and black channels is not less than 150, and a large-ink-volume printing gray level is adopted in ink jetting to ensure that the color is in a gray-black color system;
fifthly, spraying double-peak graded glaze by using a bell jar glaze sprayer, wherein the double-peak graded glaze is prepared from fine powder glaze, frit particle coarse powder and a composite additive solution; the glazing amount is 800g-1300g/m 2
Step five, the particle distribution of the fine powder glaze of the bimodal graded glaze is D90 being 15 +/-3 mu m, the initial melting point temperature is 850-900 ℃, the particle distribution of the coarse powder particles of the frit of the bimodal graded glaze is D90 being 100 +/-10 mu m, and the initial melting point temperature is 1000-1050 ℃;
sixthly, pre-drying by using a hot air dryer at the pre-drying temperature of 120-140 ℃ for 5 min;
firing the stean at the maximum temperature of 1195 ℃ for a firing period of 95 minutes;
polishing, wherein the pressure of the polishing grinding head is less than 1.5 Mpa;
the mesh number and the group number of the polishing grinding heads are set as follows:
Figure BDA0003701047770000051
in this embodiment, the fine powder glaze of the bimodal graded glaze consists of the following components in parts by weight: 4 parts of calcined zinc oxide, 8 parts of diopside, 10 parts of calcium carbonate, 15 parts of G1273 frit, 40 parts of transparent frit, 13 parts of albite, 7 parts of scraper soil, 3 parts of superfine quartz, 0.3 part of sodium carboxymethylcellulose and 0.7 part of sodium hexametaphosphate;
the frit particle coarse powder of the bimodal graded glaze comprises the following components in parts by weight: 15 parts of raw zinc oxide, 33 parts of potassium powder, 4 parts of potassium nitrate, 20 parts of wollastonite, 3 parts of calcite, 5 parts of fluorite, 15 parts of quartz powder, 9 parts of scraper soil and 3 parts of glass slag;
the composite additive solution of the bimodal graded glaze consists of the following components in parts by weight: 50 parts of polyethylene glycol, 12 parts of methyl silicone oil, 10 parts of emulsifier, 10 parts of dispersant, 5 parts of polyacrylamide, 10 parts of BYK-333 leveling agent and 3 parts of sodium hexametaphosphate.
In this embodiment, the G1273 frit in the fine glaze powder has a linear thermal expansion coefficient of 12.73 × 10 at a temperature of 30-400 deg.C -6 The frit with the high expansion coefficient at/° C comprises the following chemical components in parts by weight: SiO 2 2 48.52、Al 2 O 3 19.67、CaO8.67、MgO1.02、K 2 O5.87、Na 2 O16.21, 0.04% burn.
In this embodiment, the transparent frit in the fine glaze powder has a melting point temperature of greater than 1100 ℃, and comprises the following chemical components in parts by weight:
SiO 2 53.55、Al 2 O 3 11.88、Fe 2 O 3 0.13、CaO10.68、MgO2.7、K 2 O2.92、Na 2 O3.12、ZnO6.23、TiO 2 0.05、B 2 O 3 0.21, BaO8.11, 0.42 of causticity.
[ example 2 ]
Embodiment 2 differs from embodiment 1 only in that step sixty and step sixty are performed in the method for preparing the gray black polished thin rock plate, wherein:
step fifthly: spraying double-peak graded glaze by using a bell jar glaze sprayer, wherein the double-peak graded glaze is prepared from fine powder glaze, frit particle coarse powder and a composite additive solution; the glazing amount is selected from one of the following substances:
①800g/m 2
②1050g/m 2
③1300g/m 2
④800g~925g/m 2
⑤925g~1050g/m 2
⑥1050g~1175g/m 2
⑦1175g~1300g/m 2
⑧925g~1175g/m 2
⑨800g~1050g/m 2
⑩800g~1175g/m 2
step sixthly: pre-drying with hot air dryer for 5min at one of the following temperatures:
①120℃;
②125℃;
③130℃;
④135℃;
⑤140℃;
⑥120~130℃;
⑦120~125℃;
⑧125~135℃;
⑨135~140℃;
⑩130~140℃。
the method comprises the following steps: polishing, the pressure of the polishing grinding head is selected from one of the following alternatively:
①1.1Mpa;
②1.2Mpa;
③1.3Mpa;
④1.4Mpa;
the method comprises the following steps: polishing, the mesh number and the group number of the polishing grinding heads are selected from one of the following:
Figure BDA0003701047770000071
Figure BDA0003701047770000072
Figure BDA0003701047770000073
Figure BDA0003701047770000074
the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (10)

1. The preparation method of the gray black polished thin rock plate is characterized by comprising the following steps of:
the method comprises the steps of firstly, pressing a biscuit;
polishing the green body, and removing coarse particle powder on the surface of the green body;
thirdly, applying water-proof ground glaze in an ink-jet printing mode;
fourthly, surface pattern decoration is carried out in an ink-jet printing mode;
fifthly, spraying the bimodal glaze by using a bell jar glaze sprayer, wherein the bimodal glaze is prepared from fine powder glaze, frit particle coarse powder and a composite additive solution; the glazing amount is 800g-1300g/m 2
Sixthly, pre-drying by using a hot air dryer at the pre-drying temperature of 120-140 ℃ for 5 min;
firing the stean at the maximum temperature of 1195 ℃ for a firing period of 95 minutes;
and the pressure of the polishing grinding head is less than 1.5 MPa.
2. The method for preparing the gray-black polished thin rock plate according to claim 1, characterized by comprising the steps of selecting the water-proof ground coat as oil ink, selecting color ink, functional ink or a combination of the two according to black tone requirements of products, adopting average gray scale for an ink jet file channel, performing double-channel printing, reducing influence of fluctuation of a nozzle state on glaze spraying effect, and ensuring that the ink uniformly covers the surface of the thin slab.
3. The method for preparing the gray black polished thin rock plate as claimed in claim 1, wherein the color of the ink used for surface pattern decoration in the step four is mainly blue, brown, scarlet, orange and black, the total gray level of black channels is not less than 100, the total gray level of blue + yellow + orange + black channels is not less than 150, and the gray black system is ensured by adopting a large amount of ink for printing.
4. The method for preparing the gray black polished thin rock plate as claimed in claim 1, wherein the particle distribution of the fine powder glaze of the bimodal graded glaze is D90 ═ 15 ± 3 μm, the melting point onset temperature is 850-900 ℃, the particle distribution of the coarse powder particles of the frit of the bimodal graded glaze is D90 ═ 100 ± 10 μm, and the melting point onset temperature is 1000-1050 ℃.
5. The method for preparing gray black polished thin rock plate according to claim 4, wherein the fine powder glaze of the bimodal graded glaze consists of the following components in parts by weight: 4 parts of calcined zinc oxide, 8 parts of diopside, 10 parts of calcium carbonate, 15 parts of G1273 frit, 40 parts of transparent frit, 13 parts of albite, 7 parts of scraper soil, 3 parts of superfine quartz, 0.3 part of sodium carboxymethylcellulose and 0.7 part of sodium hexametaphosphate;
the frit particle coarse powder of the bimodal graded glaze comprises the following components in parts by weight: 15 parts of raw zinc oxide, 33 parts of potassium powder, 4 parts of potassium nitrate, 20 parts of wollastonite, 3 parts of calcite, 5 parts of fluorite, 15 parts of quartz powder, 9 parts of scraper soil and 3 parts of glass slag;
the composite additive solution of the bimodal graded glaze consists of the following components in parts by weight: 50 parts of polyethylene glycol, 12 parts of methyl silicone oil, 10 parts of emulsifier, 10 parts of dispersant, 5 parts of polyacrylamide, 10 parts of BYK-333 leveling agent and 3 parts of sodium hexametaphosphate.
6. The method of claim 5, wherein the G1273 frit in the fine glaze has a linear thermal expansion coefficient of 12.73 x 10 at a temperature ranging from 30 ℃ to 400 ℃ -6 The frit with the high expansion coefficient at the temperature of/° C comprises the following chemical components in parts by weight: SiO 2 2 48.52、Al 2 O 3 19.67、CaO8.67、MgO1.02、K 2 O5.87、Na 2 O16.21, 0.04% burn.
7. The gray-black polishing pad of claim 5The preparation method of the rock plate is characterized in that the initial melting point temperature of the transparent frit in the fine powder glaze is higher than 1100 ℃, and the chemical components of the transparent frit in the fine powder glaze consist of the following components in parts by weight: SiO 2 2 53.55、Al 2 O 3 11.88、Fe 2 O 3 0.13、CaO10.68、MgO2.7、K 2 O2.92、Na 2 O3.12、ZnO6.23、TiO 2 0.05、B 2 O 3 0.21, BaO8.11, 0.42 of causticity.
8. The method for preparing a gray-black polished thin rock plate as claimed in claim 1, wherein the steps of polishing, the mesh number and the group number of the polishing grinding heads are set as follows:
Figure FDA0003701047760000021
9. the method of claim 8, wherein the polishing, polishing head mesh and group number are selected from one of the following:
Figure FDA0003701047760000022
Figure FDA0003701047760000023
Figure FDA0003701047760000024
Figure FDA0003701047760000025
10. the method for preparing gray-black polished thin rock plate as claimed in claim 1, wherein the polishing and polishing grinding head pressure is selected from one of the following pressures:
①1.1Mpa;
②1.2Mpa;
③1.3Mpa;
④1.4Mpa;
the pressure of the polishing grinding head is less than 1.5 MPa.
CN202210693052.6A 2022-06-17 2022-06-17 Preparation method of gray black polished thin rock plate Pending CN114956870A (en)

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