CN115504671B - High-temperature wear-resistant transparent glaze and preparation method and application thereof - Google Patents
High-temperature wear-resistant transparent glaze and preparation method and application thereof Download PDFInfo
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- CN115504671B CN115504671B CN202211243929.8A CN202211243929A CN115504671B CN 115504671 B CN115504671 B CN 115504671B CN 202211243929 A CN202211243929 A CN 202211243929A CN 115504671 B CN115504671 B CN 115504671B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000011449 brick Substances 0.000 claims abstract description 48
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 11
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 25
- 239000011734 sodium Substances 0.000 claims description 19
- 239000011787 zinc oxide Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 10
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 10
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 10
- 238000007766 curtain coating Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 6
- 229910052656 albite Inorganic materials 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 239000000454 talc Substances 0.000 claims description 6
- 235000012222 talc Nutrition 0.000 claims description 6
- 229910052623 talc Inorganic materials 0.000 claims description 6
- 239000010456 wollastonite Substances 0.000 claims description 6
- 229910052882 wollastonite Inorganic materials 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 14
- 230000001737 promoting effect Effects 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 13
- 239000013078 crystal Substances 0.000 description 11
- 238000005498 polishing Methods 0.000 description 11
- 238000010304 firing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 7
- 239000006184 cosolvent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
-
- 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
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a high-temperature wear-resistant transparent glaze, a preparation method and application thereof, wherein the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO (silicon dioxide) according to mass percent 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. According to the high-temperature wear-resistant transparent glaze and the preparation method thereof, the color development promoting performance is separated from the glaze, and the glaze has good transparency and wear resistance by changing the formula structure of the glaze, and meanwhile, the glaze is endowed with high melting temperature, so that the defects in the prior art are overcome. And further provides an application of the high-temperature wear-resistant transparent glaze in preparation of the glazed brick, and the high-temperature wear-resistant transparent glaze is coated on the top of the glazed brick in a spraying manner, so that the transparency, hardness and wear resistance of the glazed brick are improved.
Description
Technical Field
The invention relates to the technical field of building ceramics, in particular to a high-temperature wear-resistant transparent glaze and a preparation method and application 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 are not ideal, and the glazed brick is taken as the top layer of the glazed brick, and the wear resistance and the hardness have important significance on the glazed brick.
Since the transparency and color development of the polished glaze are important properties which are required to be achieved, the wear resistance and hardness of the polished glaze are generally ignored in the current polished glazed brick products. Although a few ceramic manufacturers pay attention to the wear resistance and hardness of the polished glaze, 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 glaze brick, but the formula structure of the wear-resistant protective glaze is generally a high-aluminum system in the prior art for realizing the wear resistance of the polished glaze, but the high-aluminum system is quite unfavorable for the color development of the polished glaze brick, because the formula structure of the high-aluminum system is generally lower in transparency, if the color development of the polished glaze brick is required to be ensured, the glaze layer of the wear-resistant protective glaze of the high-aluminum system is necessarily thin, but the effect of the excessively thin wear-resistant protective glaze on the wear resistance and hardness of the polished glaze brick is quite limited, so that the conventional polished glaze brick also lacks a better technical scheme for realizing the compatibility of the transparency, the color development and the wear resistance of the polished glaze brick.
Disclosure of Invention
The invention aims to provide a high-temperature wear-resistant transparent glaze and a preparation method thereof, wherein the color development promoting performance is separated from the glaze, and the glaze has good transparency and wear resistance by changing the formula structure of the glaze, and meanwhile, the glaze is endowed with higher melting temperature so as to overcome the defects in the prior art.
The invention further aims to provide an application of the high-temperature wear-resistant transparent glaze in preparation of glazed bricks, and the high-temperature wear-resistant transparent glaze is coated on the tops of the glazed bricks in a spraying manner, so that the transparency, hardness and wear resistance of the glazed bricks are improved.
To achieve the purpose, the invention adopts the following technical scheme:
the high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 2 55～78％、Al 2 O 3 5～12％、K 2 O 1.5～4％、Na 2 O 0.5～5％、CaO 5.5～15.5％0 to 1.2 percent of MgO, 0 to 2 percent of BaO and 3 to 6 percent of ZnO.
Preferably, the raw materials of the high-temperature wear-resistant transparent glaze comprise potassium feldspar, albite, water-washed kaolin, zinc oxide, quartz, calcined alumina, talcum, wollastonite and transparent frit.
Preferably, the high-temperature wear-resistant transparent glaze comprises, 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, 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 preparation method of the high-temperature wear-resistant transparent glaze is used for preparing the high-temperature wear-resistant transparent glaze and comprises the following steps of:
A. adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling;
B. and D, sieving the glaze slurry obtained in the step A, and removing iron and ageing to obtain the high-temperature wear-resistant transparent glaze.
Preferably, in the step B, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, and the screen residue is 0.3-0.6%.
Preferably, in the step B, 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.
Preferably, in the step B, 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.
The high-temperature wear-resistant transparent glaze is applied to the glazed brick in a curtain coating mode.
Preferably, the high temperature wear resistant transparentThe application amount of the glaze is 300-600 g/m 2 。
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
1. the color development promoting performance is separated from the glaze, the glaze has good transparency and wear resistance by changing the formula structure of the glaze, and the glaze is used as the top glaze polishing layer in the glazed brick, so that the glaze polishing has the advantages of high hardness, high transparency and good wear resistance.
2. The formula structure of the high-temperature wear-resistant transparent glaze is designed into a high-silicon system, so that cristobalite is taken as a main crystalline phase, the generation of other miscellaneous crystalline phases is reduced as much as possible, and the penetration of the glaze can be effectively improved; in addition, compared with the glass, the crystal has certain hardness, and can endow the high-temperature wear-resistant transparent glaze with better wear resistance.
3. Because the crystals in the glaze are not generated during firing, the raw materials with the crystals are used for glaze production, and therefore, in the firing process, only a small amount of cosolvent is needed to bond the crystals in the raw materials, thereby reducing the use of cosolvent such as CaO, mgO, baO and ZnO in the high-temperature wear-resistant transparent glaze, and further being beneficial to further improving the wear resistance of the high-temperature wear-resistant transparent glaze because the solvent material is not wear-resistant.
4. Because the cosolvent in the formula structure is rapidly reduced, the melting temperature of the glaze is increased, the glaze cannot be melted or is difficult to melt in the firing process of the glazed brick, the glazing quantity of the high-temperature wear-resistant transparent glaze can be increased by utilizing the characteristics, and the thickness of the high-temperature wear-resistant transparent glaze is piled up by adopting a curtain coating mode, so that the hardness and the wear resistance of the wear-resistant transparent glaze are further improved.
Detailed Description
The high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 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 andZnO 3～6％。
since the transparency and color development of the polished glaze are important properties which are required to be achieved, the wear resistance and hardness of the polished glaze are generally ignored in the current polished glazed brick 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 high-temperature wear-resistant transparent glaze, wherein the color development promoting performance is firstly separated from the glaze, is realized by the existing color development protection glaze or other color development promoting ceramic raw materials in the ceramic field, and then has good transparency and wear resistance simultaneously by changing the formula structure of the glaze.
Specifically, the transparency in the existing glaze polishing layer 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 the polished glaze, the scheme designs the formula structure of the polished glaze to be a high-silicon system, so that the cristobalite is taken as a main crystalline phase, and 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 crystal with high transparency as a single crystal, so that the transparency of the glaze can be effectively improved; in addition, compared with the glass, the crystal has certain hardness, and can endow the glaze 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, in the firing process, 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 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, the glaze cannot be melted or is difficult to melt in the firing process of the glazed brick, the glazing quantity of the high-temperature wear-resistant transparent glaze can be increased by utilizing the characteristics, and the thickness of the high-temperature wear-resistant transparent glaze is piled up in a curtain coating mode, so that the hardness and the wear resistance of the wear-resistant transparent glaze are further improved.
Further, the raw materials of the high-temperature wear-resistant transparent glaze comprise potassium feldspar, albite, water-washed kaolin, zinc oxide, quartz, calcined alumina, talcum, wollastonite and transparent frit.
In a preferred embodiment of the technical scheme, the high-temperature wear-resistant transparent glaze can be prepared by taking potassium feldspar, albite, water-washed kaolin, zinc oxide, quartz, calcined alumina, talcum, wollastonite and transparent frit as raw materials, so that the high-temperature wear-resistant transparent glaze has the crystal and chemical components with the required formula structure, the raw materials are simple and easy to obtain, and the production difficulty and the production cost of the high-temperature wear-resistant transparent glaze are reduced.
Further, the high-temperature wear-resistant transparent glaze comprises, 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.
Further described, the chemical components of the transparent frit include SiO in terms of mass percent 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.
In one embodiment of the present disclosure, the transparent frit is a frit particle prepared by melt-water quenching according to the above formulation, and has the characteristics of high transparency, high onset temperature and high hardness.
The preparation method of the high-temperature wear-resistant transparent glaze is used for preparing the high-temperature wear-resistant transparent glaze and comprises the following steps of:
A. adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling;
B. and D, sieving the glaze slurry obtained in the step A, and removing iron and ageing to obtain the high-temperature wear-resistant transparent glaze.
The scheme also provides a preparation method of the high-temperature wear-resistant transparent glaze, which has the advantages of simple steps and strong operability, and is beneficial to realizing the mass production of the high-temperature wear-resistant transparent glaze.
Preferably, in the step A, the adding amount of the sodium hydroxymethyl cellulose is 0.25-0.45% of the total mass of the high-temperature wear-resistant transparent glaze raw material, and the adding amount of the sodium tripolyphosphate is 0.2-0.5% of the total mass of the high-temperature wear-resistant transparent glaze raw material.
Further more, in the step B, the high-temperature wear-resistant transparent glaze passes through a 325-mesh sieve, and the screen residue is 0.3-0.6%.
In a preferred embodiment of the technical scheme, the glaze slurry 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.
Further described, in the step B, 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.
Further described, in the step B, 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.
According to the scheme, 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 stable glazing quality.
The high-temperature wear-resistant transparent glaze is applied to the glazed brick in a curtain coating mode.
Further described, the high-temperature wear-resistant transparent glaze has the cloth application amount of 300-600 g/m 2 。
The scheme also provides application of the high-temperature wear-resistant transparent glaze in preparation of the polished glazed brick, the high-temperature wear-resistant transparent glaze is coated on the top of the polished glazed brick in a spraying manner, effective accumulation of the glaze is realized, and the transparency, hardness and wear resistance of the polished glazed brick are improved.
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
A. Adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 55％、Al 2 O 3 11％、K 2 O 4％、Na 2 O5%, caO 15.5%, mgO 1.2%, baO 2% and ZnO 6%, and the balance of other trace oxides, wherein the addition amount of the sodium hydroxymethyl cellulose is 0.25% of the total mass of the high-temperature wear-resistant transparent glaze raw material, and the addition amount of the sodium tripolyphosphate is 0.2% of the total mass of the high-temperature wear-resistant transparent glaze raw material;
B. 325 mesh of the glaze slip in the step ASieving with sieve with 0.3-0.6% of screen residue, removing iron and ageing to obtain the product with specific gravity of 1.65g/cm 3 High-temperature wear-resistant transparent glaze with flow rate of 25 s.
Example 2
A. Adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 67％、Al 2 O 3 8％、K 2 O 3％、Na 2 4.5% of O, 9.5% of CaO, 0.8% of MgO, 1.5% of BaO and 5.5% of ZnO, and the balance of other trace oxides, wherein the addition of the sodium hydroxymethyl cellulose is 0.25% of the total mass of the high-temperature wear-resistant transparent glaze raw material, and the addition of the sodium tripolyphosphate is 0.2% of the total mass of the high-temperature wear-resistant transparent glaze raw material;
B. sieving the glaze slip obtained in the step A with a 325-mesh sieve, wherein the screen residue is 0.3-0.6%, removing iron and ageing to obtain the glaze slip with the specific gravity of 1.75g/cm 3 High-temperature wear-resistant transparent glaze with flow rate of 30 s.
Example 3
A. Adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling; wherein, the chemical components of the high-temperature wear-resistant transparent glaze comprise SiO according to the mass percentage 2 78％、Al 2 O 3 6％、K 2 O 2％、Na 2 1.5% of O, 5.5% of CaO, 1% of MgO, 1.5% of BaO and 4% of ZnO, and the balance of other trace oxides, wherein the addition of the sodium hydroxymethyl cellulose is 0.25% of the total mass of the high-temperature wear-resistant transparent glaze raw material, and the addition of the sodium tripolyphosphate is 0.2% of the total mass of the high-temperature wear-resistant transparent glaze raw material;
B. sieving the glaze slip obtained in the step A with a 325-mesh sieve, wherein the screen residue is 0.3-0.6%, and removing iron and ageing to obtain the glaze slip with the specific gravity of 1.85g/cm 3 High-temperature wear-resistant transparent glaze with flow rate of 38s.
Experiment group 1
The high-temperature wear-resistant transparent glaze prepared in the examples 1-3 is respectively coated on the surfaces of three green bricks with the same ink-jet pattern in a curtain coating mode, the glazing amount of the high-temperature wear-resistant transparent glaze of the green bricks is the same, and a sample brick A1 (coated with the high-temperature wear-resistant transparent glaze of the example 1), a sample brick B1 (coated with the high-temperature wear-resistant transparent glaze of the example 2) and a sample brick C1 (coated with the high-temperature wear-resistant transparent glaze of the example 3) are obtained after firing and full polishing.
Experiment group 2
The high-temperature wear-resistant transparent glaze prepared in the examples 1-3 is respectively coated on the surfaces of three green bricks with the same ink-jet pattern in a curtain coating mode, the glazing amounts of the high-temperature wear-resistant transparent glaze of the green bricks are the same, and a sample brick A2 (coated with the high-temperature wear-resistant transparent glaze of the example 1), a sample brick B2 (coated with the high-temperature wear-resistant transparent glaze of the example 2) and a sample brick C2 (coated with the high-temperature wear-resistant transparent glaze of the example 3) are obtained after half polishing after firing.
Performance testing
Observing the glaze effect of the sample bricks, and carrying out conventional wear resistance and Mohs hardness in the ceramic field on the sample bricks obtained in the experimental group 1 and the experimental group 2, wherein the inspection methods are as follows:
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 results of Performance test of different sample tiles
From the performance test results, it can be known that the high-temperature wear-resistant transparent glaze provided by the scheme has the glaze layer Mohs hardness reaching 4-5 levels after full polishing, the wear resistance reaching at least 4 levels 2100 turns, the glaze layer Mohs hardness reaching 5-6 levels after half polishing, and the wear resistance reaching at least 4 levels 6000 turns, and has the characteristics of high transparency, high hardness and good 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 (5)
1. The application of the high-temperature wear-resistant transparent glaze in preparing the polished glazed brick with high transparency, hardness and wear resistance is characterized in that the high-temperature wear-resistant transparent glaze is coated on the polished glazed brick in a curtain coating manner, and the coating amount of the high-temperature wear-resistant transparent glaze is 300-600 g/m 2 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;
the high-temperature wear-resistant transparent glaze comprises the following chemical components in percentage by mass 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;
the high-temperature wear-resistant transparent glaze comprises, 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.
2. The use of the high-temperature wear-resistant transparent glaze in the preparation of polished tiles with high transparency, hardness and wear resistance according to claim 1, wherein 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.
3. The use of the high-temperature wear-resistant transparent glaze in the preparation of polished tiles with high transparency, hardness and wear resistance according to claim 1, wherein the preparation method of the high-temperature wear-resistant transparent glaze comprises the following steps:
A. adding raw materials of the high-temperature wear-resistant transparent glaze into a ball mill, and adding sodium hydroxymethyl cellulose, sodium tripolyphosphate and water into the ball mill, so as to obtain glaze slurry by ball milling;
B. and D, sieving the glaze slurry obtained in the step A, and removing iron and ageing to obtain the high-temperature wear-resistant transparent glaze.
4. The use of a high temperature wear resistant transparent glaze according to claim 3 for the preparation of high transparency, hardness and wear resistant glazed tiles, wherein in step B, the high temperature wear resistant transparent glaze is screened through a 325 mesh screen with a screen residue of 0.3-0.6%.
5. The use of a high temperature wear resistant transparent glaze according to claim 1 for the preparation of high transparency, hardness and wear resistant glazed tiles, wherein 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.
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