CN106242524A - A kind of pure white polished glazed tile and preparation method thereof - Google Patents

A kind of pure white polished glazed tile and preparation method thereof Download PDF

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Publication number
CN106242524A
CN106242524A CN201610589109.2A CN201610589109A CN106242524A CN 106242524 A CN106242524 A CN 106242524A CN 201610589109 A CN201610589109 A CN 201610589109A CN 106242524 A CN106242524 A CN 106242524A
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pure white
polished
glazed tile
whiteness
preparation
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邱军
邓志成
范新晖
吴则昌
袁红
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Roc Pottery Co Ltd Of Foshan Shi Wan China
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Roc Pottery Co Ltd Of Foshan Shi Wan China
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/16—Lean materials, e.g. grog, quartz
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/24—Manufacture of porcelain or white ware
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
    • C04B2235/3445—Magnesium silicates, e.g. forsterite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9692—Acid, alkali or halogen resistance

Abstract

The invention discloses a kind of pure white polished glazed tile and preparation method thereof, the chemical analysis of its raw material components is calculated by mass percentage, including following component: SiO265～74%, Al2O316～21%, alkali metal oxide and/or alkaline earth oxide 5～8%, Fe2O3≤ 0.25%, TiO2≤ 0.1% and loss on ignition 3 5%.The present invention: one, make full use of the Zirconium orthosilicate. etc. before desiliconization aluminium powder replaces containing zirconium source material material, do not have to add the whiteness carrying out improving polished bricks containing zirconium source material material, directly raw material is being selected to brighten, the whiteness of polished glazed tile it is greatly improved from there through desiliconization aluminium powder, meet whiteness technological requirement, solve the problem that current polished bricks radioactivity exceeds standard；Two, quoting high viscous bentonite replaces part ball clay/clay (abbreviation mud) to increase whiteness；The whiteness of the polished glazed tile of preparation is 60 62 degree, is suitable for the ceramic industry market demand.The preparation method of the present invention, simple to operate, raw material is easy to get, with low cost, and process controllability is strong, can produce above-mentioned 60 degree of pure white polished bricks.

Description

A kind of pure white polished glazed tile and preparation method thereof
Technical field
The present invention relates to the technical field that ceramic tile produces, particularly relate to a kind of pure white polished glazed tile and preparation method thereof.
Background technology
Along with improving constantly of living standards of the people and whole society's environmental consciousness, the requirement to Ceramic Tiles is more and more higher, The most each government puts into effect a series of environmental practices, strengthens energy-saving and emission-reduction, formulates corresponding decree regulation, and regulation industry is polluted, special It it not the impact that nature and the mankind are caused of radioactivity problem.
The whiteness of ultrawhite series of products the most on the market is generally at 50-55 degree, owing to being limited by raw material whiteness, high Ultrawhite raw material is the most rare, and whiteness is promoted, and the Ceramics Enterprises producing ultrawhite series products all can add a certain amount of on formula Zirconium orthosilicate. or the raw material Han zr element；And zr element is the primary pollution source putting thanking property.In formula, the content along with zr element adds Greatly, the radioactivity of product can be the biggest, and when reaching a certain amount of, the radioactivity of product exceeds standard, and such formula not only can often occur Radioassay can not be up to standard problem, and surface tactile sensation seems the most stiff, and after polishing, fine and smooth degree is the most inadequate.Therefore produce Preparing a kind of texture that both can guarantee that product and whiteness, radioactivity is far below national regulation index simultaneously, meets environmental protection raw The super-white polished brick of the theory of living is ceramic industry focus of attention problem.
Summary of the invention
Present invention aims to weak point of the prior art, it is provided that a kind of pure white polished glazed tile, do not draw With containing zirconium source material material, directly raw material is being selected to improve whiteness, environmental protection and energy saving；Invention also provides pure white polished glazed tile Preparation method, scientific and reasonable, preparation process is easy, with low cost.
For reaching this purpose, the present invention by the following technical solutions:
A kind of pure white polished glazed tile, the chemical analysis of its raw material components is calculated by mass percentage, including following component: SiO265～74%, Al2O316～21%, alkali metal oxide and/or alkaline earth oxide 5～8%, Fe2O3≤ 0.25%, TiO2≤ 0.1% and loss on ignition 3-5%.
Further, its raw material is calculated by mass percentage, including following component: Dongxing sand 25～27%, pure white sand 25～32%, the bright sand of good fortune 5～9%, water milling powder 8～10%, ultrawhite ball clay 8～11%, the former mud in Huidong 3～6%, silica flour 3～ 6%, Talcum 1～3%, bentonite 1～3%, desiliconization aluminium powder 1～3% and adjuvant 0.4～1% are burnt.
Below for selecting the percentage table containing each chemical analysis in raw material:
The present invention does not quote containing zirconium source material material, is directly selecting raw material by using described desiliconization aluminium powder, is not only having There is introducing conventional formulation to use a large amount of aluminium oxidies to brighten and cause production process situation rambunctious, and substantially increase throwing The whiteness of light ceramic tile so that whiteness reaches more than 60 degree, its whiteness requires higher than common ceramic tile 35 degree, smooth surface, radiation Property does not exceeds standard, and meets the requirement of national standard, reaches environmental protection and energy saving effect；Hardness >=7 grade of the polished glazed tile of the present invention；Acidproof Alkali resistance is UA level；Radioactivity is Ira≤0.6, Ir≤0.8；Rupture strength is 41-45Mpa, and the performance of test not only meets raw Production. art standard-required, the most excellent.
The main formula composition of polished bricks is SiO2And Al2O3, under high temperature, the pyroplastic deformation of Imitation Rock Porcelain Tiles base substrate is Imitation Rock Porcelain Tiles Extremely important process performance index.In order to improve the thermoplastic property of base substrate, can suitably increase Al in formula2O3, i.e. by taking off Aluminum silicon powder adds, and makes the mullite amount produced in base substrate increase, but the more important thing is kind and the addition adjusting flux, promotees Make mullite generate the most in a large number, thus improve the thermal deformation resistant ability of base substrate.Fe in formula components2O3And TiO2Amount The fewest, the whiteness of polished bricks is the highest, described alkali metal oxide and/or alkaline earth oxide in heat treatment process, Begin at a temperature of relatively low melt, therefore as bonding element, add intensity for ceramic tile main body.
More specifically, described adjuvant is water reducer, waterglass and highly efficient intensifying agent, calculate by mass percentage, described Water reducer be 0.1～0.3%, waterglass be 0.2～0.4% and highly efficient intensifying agent be 0.1～0.3%, also trimerization (dispergation imitate Really).
By interpolation described water reducer, waterglass mainly with making an addition in ball mill in slurry, play the effect of dilution, energy Enough improve the mobile performance of slurry, the water content in slurry can be reduced to the level that is suitable for, in order to the powder of subsequent technique Material preparation, it is to avoid slurry moisture is excessive and affects spray tower pelletize quality and cost.By introducing a small amount of described height in formula Effect reinforcing agent replaces prior partial ball clay, former mud (clay), reduces ball clay, the use content of former mud (clay), is favorably improved Intensity before and after body drying, contributes to optimization of C/C composites structure, reduces the usage amount of clay, the beneficially lifting of product whiteness, burning Becoming the quickening of speed and reduce formulation cost, to alleviating, raw material resources are in short supply positive guiding simultaneously.Add in formula simultaneously Enter degumming agent, be favorably improved the mobile performance of slurry, grinding efficiency, slurry transportation and spray drying energy consumption are had direct shadow Ring.
More specifically, described alkali metal oxide is K2O and Na2O, described alkaline earth oxide is CaO and MgO, by matter Amount percentage calculation, described CaO 0.1～1.0%, MgO 0.1～1.0%, K2O 1～3% and Na2O 2.0～4.0%.
CaO and MgO in formula components can reduce the coefficient of expansion of base substrate, chemical stability and mechanical strength, and can promote The Free quartz entering base substrate melts；It is provided that free oxygen under high temperature, improves viscosity when temperature reduces, scope of fluxing can be increased, fall The coefficient of expansion of low base substrate；K2O and Na2O can significantly reduce melt temperature and the viscosity of base substrate, and they significantly increase the expansion of glaze Coefficient, reduces the heat stability of glaze, chemical stability and mechanical strength.
A kind of method preparing pure white polished glazed tile, comprises the following steps:
A, raw material preparation；Dongxing sand 25～27%, pure white sand 25～32%, the bright sand of good fortune 5～9%, water milling powder 8～ 10%, ultrawhite ball clay 8～11%, the former mud in Huidong 3～6%, silica flour 3～6%, burn Talcum 1～3%, bentonite 1～3%, de- Aluminum silicon powder 1～3%, water reducer be 0.1～0.3%, waterglass be 0.2～0.4% and highly efficient intensifying agent be 0.1～0.3% to enter Row mixing is equipped with, and obtains mixture A1；
B, ball milling；Carry out mixed grinding in described mixture A1 and water (by weight 2:1) are added ball mill, meet slurry Under conditions of material fineness, moisture and viscosity, form slurry B1；
C, mist projection granulating；It is dried by described slurry B1 injection in the spray drying tower, pelletize, forms powder C1；
D, punch forming；Described powder C1 is added stamping machine and carries out cloth, punch forming, obtain ceramic tile blank D1；So After be dried, get rid of moisture, prevent from bursting, it is ensured that the intensity of dry base substrate；
E, calcining；Described ceramic tile blank D1 is put into kiln calcine, obtain pure white brick E1；Pass through series of physical And chemical reaction, making adobe at high temperature form liquid phase, eventually form glass phase, crystalline phase and gas phase, rational formula is with rationally Calcining system be to ensure that the basis forming fine and close hard Imitation Rock Porcelain Tiles；
F, polishing；Described pure white brick E1 is polished operation, obtains pure white polished bricks.Polishing process is adobe surface light Clean beautiful, relate to striking off, rough polishing, fine polishing, edging, painting anti-fouling agent, waxing, the process such as pad pasting.
Physical property table for above-mentioned raw materials:
Material name Extra dry white wine degree Water suction whiteness Flow velocity (second)
Dongxing sand 50-52 50-52 24.04
Super-white sand 73-75 63-64 39.14
The bright sand of good fortune 73-75 63-63 30.56
Water milling powder 57-59 57-59 35.15
Ultrawhite ball clay 74-76 62-63 34.94
The former mud in Huidong 65-68 48-50 32.6
Silica flour 86-88 72-74 26.8
Zirconium orthosilicate. 72-75 70 21.2
Burn Talcum 87-88 79-80 23.44
Bentonite 60-62 60-62 Without flow velocity
Desiliconization aluminium powder 95 88 Without flow velocity
Preferably, the punch forming speed of stamping machine described in step D is 4.5-4.8 time/min, and stamping pressure is 31000-34000bar, according to technological requirement, stamping machine pressure, mould structure, punching press number of times and cloth uniformity coefficient determine to produce The major defects such as product intensity, size and cracking.Take above-mentioned punch forming speed and stamping pressure to described powder C1 cloth, Punch forming so that described powder C1 quickly forms described ceramic tile blank D1, in order to the calcination process of step E.
Preferably, described in step E, the value range of the firing temperature of calcining is 1170-1210 DEG C, and maximum sintering temperature is 1192 DEG C, meet wider firing range, the technological requirement of less firing deformation.The percent of firing shrinkage of base substrate is design porcelain The key factor that must take into during matter brick formula, but the firing temperature of calcining affects the percent of firing shrinkage of base substrate.When Temperature is at 1170 DEG C, and water absorption rate is big, illustrates that base substrate does not also cook；When temperature is on 1210 DEG C, owing to base substrate expands, water absorption rate Rise and shrinkage factor decline, base substrate burning is described；Find according to test of many times, in the ceramic tile effect that temperature 1170-1210 DEG C is burnt till Fruit is optimal, and the change of water absorption rate and shrinkage factor is the least.
Simultaneously as in the research and development technology route of preparation production process, material selection pattern is to have a try in lab scale Produce big production, by the way of lab scale, by laboratory batch synthesis on the basis of reform, accumulate data, spread for pilot scale Pad basis, pilot scale is important step, be lab scale arrive test manufacture, big produce between bridge, adopt in such a way, can make to prepare Production technology is more ripe, reduces the error rate that research and development are occurred, it is to avoid later stage cost unnecessary is wasted.
The present invention makes full use of the Zirconium orthosilicate. etc. before desiliconization aluminium powder replaces containing zirconium source material material, not over adding containing zirconium element Material carries out improving the whiteness of polished bricks, is directly selecting raw material to brighten, also can be greatly improved from there through desiliconization aluminium powder The whiteness of polished glazed tile, meets whiteness technological requirement, solves the problem that current polished bricks radioactivity exceeds standard；The radiation of polished bricks While property does not exceeds standard, production process is easily controllable, and the whiteness of the polished glazed tile of the present invention is 60 62, radioactivity be Ira≤ 0.6, Ir≤0.8；Rupture strength is 41-45Mpa, prepares gained polished glazed tile and not only meets production technology standard-required, whiteness More than 60 degree, smooth surface, reach environmental protection and energy saving effect, the performance of test is the most excellent, and being suitable for ceramic industry market needs Ask.The preparation method of the present invention, simple to operate, raw material is easy to get, with low cost, and process controllability is strong, can produce above-mentioned 60 Spend pure white polished bricks.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
Embodiment 1
Prepare pure white polished glazed tile, comprise the following steps:
A, raw material preparation；Dongxing sand 26%, super-white sand 31%, the bright sand of good fortune 5%, water milling powder 9%, ultrawhite ball clay 11%, The former mud in Huidong 3%, silica flour 6%, burning Talcum 2%, bentonite 3%, desiliconization aluminium powder 3%, water reducer 0.3%, waterglass 0.4% Carry out mixing with highly efficient intensifying agent 0.3% to be equipped with, obtain resulting mixture A1；
B, ball milling；Carry out mixed grinding in described mixture A1 and water (by weight 2:1) are added ball mill, meet slurry Under conditions of material fineness, moisture and viscosity, form slurry B1,
C, mist projection granulating；It is dried by described slurry B1 injection in the spray drying tower, pelletize, forms powder C1；
D, punch forming；Described powder C1 is added stamping machine and carries out cloth, punch forming, striking out of described stamping machine Type speed is 4.5-4.8 time/min, and stamping pressure is 3100-3400bar, obtains ceramic tile blank D1；Then it is dried, gets rid of Moisture, prevents from bursting, it is ensured that the intensity of dry base substrate；
E, calcining；Described ceramic tile blank D1 being put into kiln calcine, the value range of firing temperature is 1170-1210 DEG C, firing period is 45min, obtains pure white brick E1；
F, polishing；Described pure white ceramic tile E1 is polished operation, obtains pure white polished glazed tile.
Embodiment 2
Prepare pure white polished glazed tile, comprise the following steps:
A, raw material preparation；Dongxing sand 28%, pure white sand 29%, the bright sand of good fortune 5%, water milling powder 10%, ultrawhite ball clay 11%, The former mud in Huidong 6%, silica flour 5%, burning Talcum 2%, bentonite 2%, desiliconization aluminium powder 1.5%, water reducer 0.3%, waterglass 0.4% and highly efficient intensifying agent 0.3% carry out mixing be equipped with, obtain resulting mixture A1；
B, ball milling；Carry out mixed grinding in described mixture A1 and water (by weight 2:1) are added ball mill, meet slurry Under conditions of material fineness, moisture and viscosity, form slurry B1,
C, mist projection granulating；It is dried by described slurry B1 injection in the spray drying tower, pelletize, forms powder C1；
D, punch forming；Described powder C1 is added stamping machine and carries out cloth, punch forming, the punching press of described stamping machine Shaping speed is 4.5-4.8 time/min, and stamping pressure is 31000-34000bar, obtains ceramic tile blank D1；Then it is dried, Get rid of moisture, prevent from bursting, it is ensured that the intensity of dry base substrate；
E, calcining；Described ceramic tile blank D1 being put into kiln calcine, the value range of firing temperature is 1170-1210 DEG C, firing period is 45min, obtains pure white brick E1；
F, polishing；Described pure white ceramic tile E1 is polished operation, obtains pure white polished glazed tile.
Embodiment 3
Prepare pure white polished glazed tile, comprise the following steps:
A, raw material preparation；Dongxing sand 26%, pure white sand 28%, the bright sand of good fortune 6%, water milling powder 9%, ultrawhite ball clay 17%, The former mud in Huidong 6%, silica flour 4%, burn Talcum 2%, Zirconium orthosilicate. 1.2%, water reducer 0.3%, waterglass 0.3% and efficiently strengthen Agent 0.2% carries out mixing and is equipped with, and obtains resulting mixture A1；
B, ball milling；Carry out mixed grinding in described mixture A1 and water (by weight 2:1) are added ball mill, meet slurry Under conditions of material fineness, moisture and viscosity, form slurry B1,
C, mist projection granulating；It is dried by described slurry B1 injection in the spray drying tower, pelletize, forms powder C1；
D, punch forming；Described powder C1 is added stamping machine and carries out cloth, punch forming, striking out of described stamping machine Type speed is 4.5-4.8 time/min, and stamping pressure is 31000-34000bar, obtains ceramic tile blank D1；Then it is dried, row Moisture removal, prevents from bursting, it is ensured that the intensity of dry base substrate；
E, calcining；Described ceramic tile blank D1 being put into kiln calcine, the value range of firing temperature is 1170-1210 DEG C, firing period is 45min, obtains pure white brick E1；
F, polishing；Described pure white ceramic tile E1 is polished operation, obtains pure white polished glazed tile.
Porcelain is polished in vain with regular convention formula is prepared as by the pure white polished glazed tile of gained being prepared by above-described embodiment 1 and 2 Brick can detect contrast according to different detection project Progressive symmetric erythrokeratodermia respectively, below table seen from concrete experimental test data.
Table 1:
As can be seen from Table 1, detect by embodiment 1 being carried out different performances from embodiment 2 and common white polished bricks Experiment, can show: the whiteness of the pure white polished bricks prepared by embodiment 1 is 61.5, radioactivity is Ira≤0.6, Ir≤0.8, anti- Folding intensity is 42-45Mpa, and hardness is >=7；The whiteness of the pure white polished bricks prepared by embodiment 2 is 59.6, and radioactivity is Ira ≤ 0.6, Ir≤0.8, rupture strength is 42-45Mpa, and hardness is >=7；The whiteness of common white polished bricks is 59.5, and radioactivity is Ira≤0.9, Ir≤1.1, rupture strength is 41-43Mpa, and hardness is >=6.5.It follows that embodiment 1 and embodiment 2 is pure The white whiteness of polished bricks, rupture strength and hardness all big than common white polished bricks, radioactive indicator is than common polished bricks Low, the performance of the pure white polished bricks prepared by the present invention is substantially whiter than common white polished bricks, more excellent.
The pure white polished glazed tile prepared by the pure white polished glazed tile prepared by embodiment 3 and embodiment 1 and embodiment 2 is divided Can not detect contrast according to different detection project Progressive symmetric erythrokeratodermia, below table seen from concrete experimental test data.
Table 2:
As can be seen from Table 2, it is prepared as with embodiment 1 and embodiment 2 by the pure white polished glazed tile prepared by embodiment 3 Pure white polished glazed tile carry out different performance test experience, can draw: the whiteness of the pure white polished bricks prepared by embodiment 1 is 61.5, radioactivity is Ira≤0.6, Ir≤0.8, and rupture strength is 44Mpa, and hardness is >=7；Pure white throwing prepared by embodiment 2 The whiteness of light brick is 59.6, and radioactivity is Ira≤0.6, Ir≤0.8, and rupture strength is 43Mpa, and hardness is >=7；Embodiment 3 institute The whiteness of the pure white polished glazed tile of preparation is 62, and radioactivity is Ira≤0.6, Ir≤0.8, and rupture strength is 46Mpa, and hardness is ≥7.It follows that embodiment 3 prepares the whiteness of prepared pure white polished glazed tile and rupture strength is all made than embodiment 1 and 2 Wanting of standby pure white polished bricks is big, the pure white polished bricks that radioactive indicator is prepared than embodiment 1 and 2 low.
In sum, the test result of above table 1 and 2 show: 1, use desiliconization aluminium powder to replace zirconium source material material and swollen Profit soil replaces pure white polished bricks prepared by ball clay, reduces contamination in polished bricks while being greatly improved whiteness；2, exist In the preparation process of same recipe, use prepared by recipe ratio 60 degree of pure white more excellent whiteness of polished bricks performance of embodiment 3 more Greatly.
Thus can obtain, use desiliconization aluminium powder to replace zirconium source material material and bentonite to replace pure white polished bricks prepared by ball clay, The pure white polished bricks obtained has whiter whiteness, environmental protection and energy saving, and preparation process is simple, raw material is easy to get, with low cost, meets The demand of Coating Market, has a extensive future.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain the present invention's Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area Personnel need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within Within protection scope of the present invention.

Claims (8)

1. a pure white polished glazed tile, it is characterised in that: the chemical analysis of its raw material components is calculated by mass percentage, including with Lower composition: SiO265～74%, Al2O316～21%, alkali metal oxide and/or alkaline earth oxide 5～8%, Fe2O3 ≤ 0.25%, TiO2≤ 0.1% and loss on ignition 3-5%.
Pure white polished glazed tile the most according to claim 1, it is characterised in that: described alkali metal oxide and/or alkaline earth gold Genus oxide is K2O、Na2O, CaO and MgO.
Pure white polished glazed tile the most according to claim 1, it is characterised in that: its raw material is calculated by mass percentage, including Following component: Dongxing sand 25～27%, pure white sand 25～32%, the bright sand of good fortune 5～9%, water milling powder 8～10%, ultrawhite ball clay 8～ 11%, the former mud in Huidong 3～6%, silica flour 3～6%, burn Talcum 1～3%, bentonite 1～3%, desiliconization aluminium powder 1～3% and auxiliary Auxiliary agent 0.4～1%.
Pure white polished glazed tile the most according to claim 3, it is characterised in that: described adjuvant be water reducer, waterglass and Highly efficient intensifying agent.
5. the method preparing pure white polished glazed tile, it is characterised in that: comprise the following steps:
A, raw material preparation；Dongxing sand 25～27%, pure white sand 25～32%, the bright sand of good fortune 5～9%, water milling powder 8～10%, super Archon soil 8～11%, the former mud in Huidong 3～6%, silica flour 3～6%, burn Talcum 1～3%, bentonite 1～3%, desiliconization aluminium powder 1 ～3%, water reducer be 0.1～0.3%, waterglass be 0.2～0.4% and highly efficient intensifying agent be 0.1～0.3% to carry out mixing and join Standby, obtain resulting mixture A1；
B, ball milling；Carry out mixed grinding in described mixture A1 and water (by weight 2:1) are added ball mill, form slurry B1；
C, mist projection granulating；It is dried by described slurry B1 injection in the spray drying tower, pelletize, forms powder C1；
D, punch forming；Described powder C1 is added stamping machine and carries out cloth, punch forming, obtain ceramic tile blank D1；
E, calcining；Described ceramic tile blank D1 is put into kiln calcine, obtain pure white brick E1；
F, polishing；Described pure white brick E1 is polished operation, obtains pure white polished bricks.
The preparation method of plastic coating the most according to claim 5, it is characterised in that: rushing of stamping machine described in step D Molded speed is 4.5-4.8 time/min.
The preparation method of plastic coating the most according to claim 5, it is characterised in that: described in step E, calcining burns till The value range of temperature is 1170-1210 DEG C.
The preparation method of plastic coating the most according to claim 5, it is characterised in that: described in step E, calcining burns till Cycle is 45min.
CN201610589109.2A 2016-07-22 2016-07-22 A kind of pure white polished glazed tile and preparation method thereof Pending CN106242524A (en)

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CN107162570A (en) * 2017-07-07 2017-09-15 广东康世泰新材料科技股份有限公司 It is a kind of to strengthen ceramic of total balance of the body and preparation method thereof
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