CN102924045B - Vitrification ceramic tile, preform body of the vitrification ceramic tile and preparation method of vitrification ceramic tile - Google Patents

Vitrification ceramic tile, preform body of the vitrification ceramic tile and preparation method of vitrification ceramic tile Download PDF

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CN102924045B
CN102924045B CN201210434811.3A CN201210434811A CN102924045B CN 102924045 B CN102924045 B CN 102924045B CN 201210434811 A CN201210434811 A CN 201210434811A CN 102924045 B CN102924045 B CN 102924045B
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blank
vitreous ceramic
vitreous
brick
tio
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CN102924045A (en
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林伟
陈贤伟
陈国海
范国昌
范新晖
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Foshan Yingpai Technology Co.,Ltd.
HEYUAN DONGYUAN EAGLE CERAMICS Co.,Ltd.
Foshan Shiwan Eagle Brand Ceramics Co Ltd
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EAGLE BRAND CERAMIC (HEYUAN) Co Ltd
FOSHAN SHIWAN EAGLE BRAND HUAPENG CERAMIC Co Ltd
GUANGDONG EAGLE BRAND CERAMIC GROUP Co Ltd
Foshan Shiwan Eagle Brand Ceramics Co Ltd
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Abstract

The invention relates to a preform body of a vitrification ceramic tile. A content of Na2O in the preform body is smaller than or equal to 4.53wt%, and a content of K2O is smaller than or equal to 3.66wt%. The preform body of the vitrification ceramic tile limits potassium and sodium contents, overcomes a shortcoming of high brittleness caused by redundancy glass phases in the vitrification ceramic tile, achieves synergistic interaction effects through matching of each component in the vitrification ceramic tile, reduces firing temperature, shortens firing periods and guarantees that products have good process performance and physical and chemical performance.

Description

A kind of vitreous ceramic brick, its blank and preparation method thereof
Technical field
The present invention relates to a kind of vitreous ceramic brick, its blank and preparation method thereof, be specifically related to a kind of ultralow temperature energy-saving vitreous ceramic brick, its blank and preparation method thereof, belong to field of ceramic processing.
Background technology
Vitreous ceramic brick is one of main products of architectural pottery; its conventional firing temperature is between 1210 ± 20 DEG C; conventional firing period is between 60 ± 5min; conventional products thickness is between 12 ± 2 millimeters; conventional crystalline structure is generally feldspar mullite structure; while prior art is prepared vitreous ceramic brick and is used in a large number Guangdong black mud raw material and the feldspar raw material that resource is deficienter, causes raw materials for production in short supply.Therefore, the existing technique of vitreous ceramic brick has that energy consumption is the highest, raw materials for production are in short supply and the problem of environmental pollution.
Many this area researchists, for the firing temperature that how to reduce vitreous ceramic brick, reduce firing period, and a lot of effort have been done in developing raw materials for production aspect.
The people such as the Yang Jian of the new U.S. pottery in Henan, by introducing the rare raw material of a large amount of feldspars, its product firing temperature is only down to 1192 ± 3 DEG C; firing period only foreshortens to the R&D and production of 48min(low temperature fast firing vitreous ceramic tiles formula, Yang Jian etc., pottery; 2003,2:42-43).The people such as the Deng Jianguo of Zi Gong Zhao Feng company, utilize local raw material to manufacture experimently the production technique of colored macrobead polished tile, and its firing temperature is 1185-1200 DEG C, firing period (utilizes local raw material to manufacture experimently colored macrobead polished tile, Deng Jianguo, pottery in 60min left and right, 2002,6:46-48).The people such as Yu Xiaoqin utilize local inferior raw material to carry out reducing the firing temperature test of vitrified tile, and firing temperature is 1170-1180 DEG C, the development of firing period 30min(low temperature fast firing porcelain floor tile, Yu Xiaoqin etc., 2001,37(1): 33-34).
The Chen Jing of Construction Material Industry Science Inst., Sichuan Prov. adopts cullet and burning ash slag to replace feldspar as flux raw material; under electric furnace condition, burn out vitrified tile sample; 1150 DEG C of sintering temperatures (are made flux raw material low-firing ceramic tile with waste material; Chen Jing; Jiangsu pottery; 2006,39(1): 24,29).
CN 1562870(is day on January 12nd, 2005 openly) temperature of glaze firing (1200-1220 DEG C) of a kind of utilization a little less than Shi porcelain disclosed, burn out the household china higher than hard-paste intensity.
DE 20001031430(is day on January 17th, 2002 openly) a kind of low frit apatite glass-ceramics is disclosed, sintering temperature is 1200-1650 DEG C.
CN 1907908(is day on February 7th, 2007 openly) a kind of method that adopts low-temperature sintering production polished tile is disclosed, the method is using cullet as main flux raw material, with tripoly phosphate sodium STPP (Na 3p 5o 10) as less important flux raw material, be aided with other at a low price ceramic raw material, make the polished tile that is suitable for roller kiln and once burns till fast (firing time 60min, firing temperature≤900 DEG C).Although the firing temperature of this patent is lower, this patent adopts more industrial chemicals tripoly phosphate sodium STPP (Na 3p 5o 10) and cullet, its intensity is low cannot realize industrialization.
Thus, only rely in a large number and reduce firing temperature with cullet and industrial reagent, formulation composition has no change, causes the physicochemical property degradation of product, and production control difficulty, product is easily deformable, salable product are low, cannot realize production at all.Therefore market in urgent need will develop that a kind of cost is low, intensity is high, does not utilize a large amount of use industrial chemicals to cause the production technique of the low temperature vitreous ceramic brick of secondary pollution.
CN 101634184 discloses a kind of large-sized ultra-thin stoneware-quality tiles and preparation method thereof, and raw materials used expression by weight percentage consists of SiO 255~68%, Al 2o 314~28%, Fe 2o 30.5~1.8%, TiO 20.2~1.5%, CaO1~12%, MgO 0.3~1%, K 2o+Na 2o 2~5%.Ultra-thin stoneware-quality brick product prepared by the present composition adopts dry-pressing formed, and molding thickness is 3~6mm, and the finished product specification can reach (900~1000) mm × (1800~2000) mm.In base substrate, introduce 5~30% fiber enhancers, to ensure that ultra-thin stoneware-quality tiles has enough intensity and toughness.The present invention has significantly alleviated the weight of unit surface ceramic tile, has realized preferably energy-saving and cost-reducing target, belongs to environmental protection class building and ornament materials.In the method, will carry out twice firing, once-firing temperature is 1140-1160 DEG C, and twice firing temperature is 1130-1150 DEG C.
CN101050107 discloses one and has been used for producing ultrathin polished brick in porcelain character and manufacture craft thereof, its raw materials by weight consists of feldspar flux 20-40%, one of clay raw materials 20-30%, the 0-8% of calcium magnesia raw material, anti-crisp dose of 10-30%, base substrate toughener 0.1-1%, also can additional 1-20% can launch the ceramics powder of negatively charged ion and far infrared rays and make functional ultrathin polished brick in porcelain character.Above raw material, by dry powder process-old-compression moulding-be dried-burn till-polishing-assortment of batching-ball milling-sieve-deironing-spraying, is made to 800 × 1800 × (3-6) mm porcelain brick of the present invention.In base substrate, introduce more anti-crisp dose, to ensure that ultra-thin brick has the enough intensity of burning till.The ceramic body that adopts the present invention to prepare has light weight, and energy-conservation, the feature that can launch negatively charged ion and far infrared rays, belongs to novel environment friendly class building and ornament materials.But this patent does not relate to any firing temperature.
In prior art, the adjustment of the preparation technology to vitreous ceramic brick is difficult to break through 1180 DEG C, and this is mainly because cooling easily, ensures the production performance of vitreous ceramic brick and quality to be difficult to, and mainly has following problem:
(1) in order to reduce firing temperature, the add-on of ceramic formula medium clay soil class raw material is few, makes the insufficient strength of green compact, in the time walking drying line and decorative thread, easily breaks;
(2) in order to reduce firing temperature, shorten firing period, in formula, introduce a large amount of flux class raw materials, make goods in the time burning till, easily produce wave transformation, big or small first-class defect, may cause card kiln accident when serious;
(3) introduce a large amount of flux class raw materials, make in goods the intensity of low glutinous glassy phase low, burning till when cooling because the effect of internal stress is easy to produce frightened splitting;
(4) in goods, the existence of a large amount of glassy phases has increased the fragility of ceramic tile greatly, has reduced heat-shock resistance and the intensity of brick;
(5) low temperature feedstock such as potassium albite is more expensive, is generally used in fabric or glaze, and in blank, a large amount of these class raw materials of introducing will increase formulation cost greatly, and this accepts for being difficult to taking profit as the enterprise of target;
(6) the low temperature flux material of introducing is many, and the firing range of brick is narrowed, and is unfavorable for stably manufactured;
(7) in formula, potassium, sodium content are high, and the resist chemical performance of product is poor;
Therefore, how developing a kind of flawless vitreous ceramic tiles blank that can low temperature fast firing, is one of this area problem demanding prompt solution.
Summary of the invention
For the deficiencies in the prior art, one of object of the present invention is to provide a kind of vitreous ceramic tiles blank that can low temperature fast firing.It is 1100 ± 20 DEG C that the low temperature of described low temperature fast firing means firing temperature, and it is 45 ± 5min that the fast burning of described low temperature fast firing means firing time.
The present invention is achieved through the following technical solutions:
A blank for vitreous ceramic brick, from concrete composition analysis, Na in described blank 2content≤4.53wt% of O, such as 4.52wt%, 4.5wt%, 4.45wt%, 4.39wt%, 4.2wt%, 4.15wt%, 4.08wt%, 3.95wt%, 3.5wt%, 2.42wt%, 2.30wt%, 1.8wt% etc., K 2content≤3.66wt% of O, such as 3.65wt%, 3.61wt%, 3.54wt%, 3.48wt%, 3.7wt%, 3.62wt%, 3.3wt%, 3.0wt%, 2.61wt%, 2.48wt%, 2.3wt%, 1.84wt%, 1.5wt% etc.
In order to reduce the firing temperature of vitreous ceramic brick, in formula, introduce a large amount of flux class raw materials, make to have a large amount of glassy phases in goods, greatly increase the fragility of ceramic tile, reduce heat-shock resistance and the intensity of brick.During the present invention fills a prescription by minimizing, the content of potassium, sodium solves the fragility of the ceramic tile causing due to a large amount of glassy phases.
The concrete composition of vitreous ceramic adobe material is well known in the art, or can be detected and be obtained by existing technique means, and typical but non-limiting example has: described vitreous ceramic adobe material contains SiO 2, K 2o, Na 2o, CaO, MgO, Al 2o 3, Fe 2o 3or TiO 2in the combination of any a kind or at least 2 kinds, but what research report its concrete content does not have.And in numerous concrete compositions, the present invention only limits Na 2content≤4.53wt% of O, K 2content≤3.66wt% of O.To introduce in order solving every problem that a large amount of flux causes simultaneously, in the raw material of vitreous ceramic brick of the present invention, to be also added with lime borate.
Particularly, from raw material composition, the blank of vitreous ceramic brick of the present invention, percentage composition comprises following component by weight:
The each component sum of described blank is 100%,
Wherein, described low temperature clay is selected from Zhuhai mud; Describedly be selected from Jiangxi washed-out sand containing lithium washed-out sand; The described effect containing lithium washed-out sand is to provide elemental lithium for the blank of vitreous ceramic brick; Described hypothermia grait is selected from Luoding stone flour;
The effect of described low temperature clay and hypothermia grait is the firing temperature that reduces vitreous ceramic adobe material, and calcium constituent, the magnesium elements of proper ratio is provided simultaneously.
Preferably, described fat clay is selected from high plasticity clay, and preferably from the fat clay of plasticity index >=15, the plasticity index of such as fat clay is 15.1,15.6,16.3,16.9,18,22 etc.; Further preferably, described fat clay is selected from the combination of any a kind or at least 2 kinds in wilkinite, ball clay, kieselguhr, red clay, and described combination is wilkinite/ball clay, kieselguhr/ball clay, red clay/wilkinite, kieselguhr ball clay/wilkinite etc. such as.
Preferably, described auxiliary flux is selected from diopside and/or burns talcum.
As optimal technical scheme, from raw material composition, the blank of described vitreous ceramic brick by weight percentage composition comprises following component:
The each component sum of described blank is 100%,
Preferably, described blank by weight percentage composition comprise following component:
The each component sum of described blank is 100%.
Further preferably, the blank of described vitreous ceramic brick by weight percentage composition comprise following component:
The each component sum of described blank is 100%,
Or described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
Preferably; in the blank of described vitreous ceramic brick, be added with softening agent; described softening agent is selected from DOP(dioctyl phthalate (DOP)), PEG(polyoxyethylene glycol), glycerol, CMC(carboxymethyl cellulose), softening agent HS, softening agent JA, DBP(phthalic acid two fourth vinegar), BBP(butyl phthalate benzene methyl) in the combination of any a kind or at least 2 kinds; such as DOP/PEG, BBP/CMC, glycerol/softening agent HS/PEG, BBP/CMC/PEG etc., preferably DOP/PEG and/or CMC.
Preferably, the chemical constitution of described Zhuhai mud mainly comprises: Al 2o 318-22%, SiO 265-74%, Fe 2o 30.8-1.4%, TiO 20.50-0.53%, K 2o 0.9-1.5%, Na 2o 0.05-0.09%, CaO0.05-0.10%, MgO 0.28-33%; Preferably, the chemical constitution of described Zhuhai mud mainly comprises: Al 2o 320.32%, SiO 269.09%, Fe 2o 31.1%, TiO 20.53%, K 2o 1.17%, Na 2o 0.07%, CaO 0.07%, MgO 0.31%.
Preferably, the chemical constitution of described Jiangxi washed-out sand mainly comprises: Al 2o 316-20%, SiO 268-74%, Fe 2o 30.05-0.13%, TiO 20.008-0.013%, K 2o 1.3-1.9%, Na 2o 4-10%, CaO0.20-0.30%, MgO 0.008-0.013%, Li 2o 0.4-1.1%; Preferably, the chemical constitution of described Jiangxi washed-out sand mainly comprises: Al 2o 317.74%, SiO 271.24%, Fe 2o 30.08%, TiO 20.01%, K 2o 1.63%, Na 2o 7.09%, CaO 0.25%, MgO 0.01%, Li 2o 0.67%.
Preferably, the chemical constitution of described Luoding stone flour mainly comprises: Al 2o 311-17%, SiO 272-80%, Fe 2o 30.36-0.46%, TiO 20.03-0.05%, K 2o 3-7%, Na 2o 2-4%, CaO 0.1-0.5%, MgO 0.08-0.12%; Preferably, the chemical constitution of described Luoding stone flour mainly comprises: Al 2o 314.02%, SiO 275.77%, Fe 2o 30.41%, TiO 20.04%, K 2o 5.29%, Na 2o 2.7%, CaO 0.23%, MgO 0.1%.
Preferably, the chemical constitution of described diopside mainly comprises: Al 2o 31.0-1.8%, SiO 253-71%, Fe 2o 30.3-0.9%, TiO 20.04-0.08%, K 2o 0.13-0.21%, Na 2o 0.33-0.43%, CaO20-28%, MgO 13-21%; Preferably, the chemical constitution of described diopside mainly comprises: Al 2o 31.38%, SiO 256.19%, Fe 2o 30.59%, TiO 20.06%, K 2o 0.17%, Na 2o 0.38%, CaO 23.6%, MgO 16.63%.
Preferably, the chemical constitution of described burning talcum mainly comprises: Al 2o 31.3-2.1%, SiO 263-70%, Fe 2o 30.3-0.7%, TiO 20.008-0.012%, K 2o 0.08-0.12%, Na 2o 0.3-0.7%, CaO0.8-1.4%, MgO 22-28%; Preferably, the chemical constitution of described burning talcum mainly comprises: Al 2o 31.74%, SiO 266.19%, Fe 2o 30.49%, TiO 20.01%, K 2o 0.1%, Na 2o 0.48%, CaO 1.14%, MgO 24.63%.
As optimal technical scheme, the blank of described vitreous ceramic brick, percentage composition comprises following component by weight:
The each component sum of described blank is 100%,
Preferably, described blank by weight percentage composition comprise following component:
The each component sum of described blank is 100%,
Further preferably, described blank by weight percentage composition comprise following component:
The each component sum of described blank is 100%.
As optional technical scheme, the blank of described vitreous ceramic brick, percentage composition comprises following component by weight:
Preferably, described blank by weight percentage composition comprise following component:
" comprising " of the present invention, mean it except described component, can also comprise other components, these other components give described vitreous ceramic adobe material different characteristics.In addition, " comprising " of the present invention, can also replace with enclosed " being " or " by ... composition ".
Two of object of the present invention is to provide a kind of vitreous ceramic brick; described vitreous ceramic brick is obtained by the blank sintering of vitreous ceramic brick of the present invention; the thickness of described vitreous ceramic brick is 6-8mm; such as 6.2mm, 6.9mm, 7.5mm, 7.9mm etc.; water-intake rate≤0.5%; for example 0.49%, 0.45%, 0.39% etc., the modulus of rupture >=43, for example 45,48,49,52,57 etc.
Three of object of the present invention is to provide a kind of preparation method of vitreous ceramic brick of the present invention, comprises the steps:
Batching, ball milling, sieves, stirs, spraying, old, pressed compact moulding, dry, burn till edging polishing;
In described mechanical milling process, control slurry 250 objects to tail over≤5%, for example 0.49%, 0.45%, 0.39% etc.
Preferably, described pressed compact is shaped to the moulding of semidrying pressed compact, and the pressure of described pressed compact moulding is 28-34MPa, such as 28.2MPa, 28.8MPa, 29.5MPa, 31.2MPa, 32.8MPa, 33.5MPa etc., preferably 30MPa.
Preferably, described temperature of burning till is 1100 ± 20 DEG C, for example 1081 DEG C, 1088 DEG C, 1092 DEG C, 1100 DEG C, 1112 DEG C, 1120 DEG C, 1125 DEG C, 1127 DEG C, 1129 DEG C etc., described firing period is 45 ± 5min, such as 41min, 43min, 44min, 45min, 47min, 49min, 49.5min etc.; Further preferably, the cold stage of tail of sintering process is with 20-80 DEG C/min cooling, for example 22 DEG C/min, 26 DEG C/min, 31 DEG C/min, 38 DEG C/min, 41 DEG C/min, 47 DEG C/min, 55 DEG C/min, 62 DEG C/min, 68 DEG C/min, 76 DEG C/min, 78 DEG C/min etc.
Vitreous ceramic adobe material formula provided by the present invention prepares the method for vitreous ceramic brick and the preparation method of traditional vitreous ceramic brick is roughly the same, and those skilled in the art can design according to the expertise of oneself, and typical but non-limiting example has:
(1) starting material of the vitreous ceramic adobe material formula providing by table 1 are prepared burden into ball mill by forklift, and ball milling fineness control 250 mesh screen residue≤0.5% can be for example 0.4%, 0.3% etc.; Mud through three roads repeatedly deironing sieve, guarantee to remove not levigate raw material and impurity iron,
(2) it is half dry-pressing formed that powder step (1) being obtained adopts, forming pressure 28-34MPa, such as 29MPa, 28.5MPa, 32MPa, 32.6MPa, 33.5MPa, 33.8MPa etc.Meanwhile, it is better that thickness difference same brick is controlled at 30 decimillimeters, is controlled at 40 decimillimeters better with four jiaos of thickness differences of a collection of brick.
(3) burn till and cold machining process
Described temperature of burning till is 1100 ± 20 DEG C, for example 1081 DEG C, 1088 DEG C, 1095 DEG C, 1100 DEG C, 1105 DEG C, 1113 DEG C, 1119 DEG C etc.; Described firing period is 45 ± 5min, such as 41min, 44min, 49min etc.; Further preferably, the cold stage of the tail of sintering process is with 20-50 DEG C/min cooling, and such as rate of temperature fall is 22 DEG C/min, 29 DEG C/min, 35 DEG C/min, 39 DEG C/min, 45 DEG C/min etc.
(4) edging polishing makes vitreous ceramic brick.
The present invention, by the following adjusting to technical scheme, has optimized the performance of vitreous ceramic brick:
1. in order to reduce firing temperature, the add-on of ceramic formula medium clay soil class raw material is few, makes the insufficient strength of green compact, in the time walking drying line and decorative thread, easily breaks.Can solve by adding the methods such as appropriate wilkinite, CMC, increase press pressure for this problem.
2. owing to introducing a large amount of flux class raw materials in formula, make goods in the time burning till, easily produce wave transformation, big or small first-class defect, may cause card kiln accident when serious.Aluminium content in can filling a prescription by increase for this problem, adds appropriate lime borate to reduce formula temperature simultaneously and solves.
3. in goods, the intensity of low glutinous glassy phase is low, burning till when cooling because the effect of internal stress is easy to produce frightened splitting.Can be by the fill a prescription content of medium sand of minimizing for this problem, the content that increases stone flour, stone grain solves.
4. in goods, the existence of a large amount of glassy phases has increased the fragility of ceramic tile greatly, has reduced heat-shock resistance and the intensity of brick.The content of potassium, sodium in can filling a prescription by minimizing for this problem, the content that increases calcium, magnesium in formula solves.
5. the low temperature flux material of introducing is many, and the firing range of brick is narrowed, and is unfavorable for stably manufactured.Aluminium content in can filling a prescription by increase for this problem, adds appropriate lime borate to reduce formula temperature simultaneously and solves.
6. in formula, potassium, sodium content are high, and the resist chemical performance of product is poor.The content of potassium, sodium in can filling a prescription by minimizing for this problem, the content that increases calcium, magnesium in formula solves.
Compared with prior art, beneficial effect of the present invention is:
(1) traditional ceramic wall and floor bricks formula mainly adopts potassium, sodium as fusing assistant.But fluxing of potassium, sodium is limited in one's ability, meanwhile, in formula, introduce the physical and chemical performance of too much potassium, sodium meeting grievous injury product, therefore the firing temperature of ceramic tiles can only be limited to 1200 DEG C of left and right.The present invention defines the content of potassium, sodium, coordinate with each component in vitreous ceramic brick, reach the effect of synergy, solve due in vitreous ceramic brick, the high problem of fragility that glassy phase too much causes, not only reduce firing temperature, shortened firing period, and ensured that product has good processing performance and physical and chemical performance;
(2) the present invention selects raw material, and traditional ceramics raw material black mud and feldspar that relinquishes resources is in short supply, alleviated environmental stress, linked again circular biological economy.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
First; the present invention selects by the raw material to vitreous ceramic adobe material and the proportioning of each raw material, makes selected raw material reach the effect of synergy, thereby has broken through the technology barriers of vitreous ceramic brick sintering; firing temperature can reach 1100 DEG C of left and right, manufactures experimently out qualified product.
Will be at sintering vitrified tile under very low temperature, the diversification of flux raw material palpus, the present invention adopts " K-Na-Li-Ca-Mg " five yuan of series, and it is carried out compound preferred.Control K 2o and Na 2the content of O, by with the coordinating of other components, reach the effect of synergy, improved the mechanical property of ceramic product, also can make product in burning till, there is lower initial melting temperature and wider melt temperature scope, thereby reduce degree of deformation.
In the time of material choice and formulation optimization, the present invention introduces the low temperature fast firing raw materials such as a small amount of wollastonite, diopside, shrinks larger defect to reduce base substrate, offsets it and shrinks, and reduces deformation of products degree.Consider that component plasticity-is poor simultaneously, increase shaping plasticity therefore intend introducing a small amount of high plasticity clay, and not too affect sintering character.
Second; under sintered at ultra low temperature condition; flux components is optimized; as choose lime borate as main flux components; the combination of choosing diopside, burn any a kind or at least 2 kinds in talcum, perlite, magnesium titanate zinc, borosilicic acid barium, zinc borate, eudialite is as auxiliary fusing assistant; and take to add fat clay, and coordinate the mode of softening agent to carry out strengthening and toughening to the base substrate of vitreous ceramic brick, solve the distortion that is difficult to overcome and the large difficult problem of fragility that flux causes more.
The 3rd, the present invention is by the selection to various components, make it reach the effect of synergy with cooperation, significantly improve the folding strength of vitreous ceramic adobe body, for dwindling the thickness of vitreous ceramic brick finished product, preparing ultra-thin vitreous ceramic brick provides condition, provides guarantee for saving energy and reduce the cost simultaneously;
The 4th, the present invention is by the selection to various components, and coordinates and make its effect that reaches synergy, significantly reduced the shrinking percentage of part sintering, improved the utilization ratio of press, reduced unit square meter porcelain piece powder consumption, simultaneously for Energy Conservation has supplied guarantee;
The 5th, the present invention is by the selection to various components, and cooperation makes it reach the effect of synergy, avoid the use of black mud and feldspar raw material, solved the supply problem of vitreous ceramic adobe material raw material, and black mud excavates the destruction to farmland, solved the day by day rare problem of feldspar;
Finally, the present invention, for the inadequate problem of green strength, solves by the pressure of suitable interpolation wilkinite, CMC, increase press; And, the problem such as heat-shock resistance poor low for intensity, by reducing the consumption of sand, the consumption that increases stone grain, stone flour solves; For the poor problem of resist chemical performance, by reducing the content of potassium, sodium, the consumption that increases calcium, magnesium solves;
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment helps to understand the present invention, should not be considered as concrete restriction of the present invention.
The weight percent that table 1 is vitreous ceramic adobe material of the present invention for embodiment 1-9 forms:
The formula composition of the blank of the vitreous ceramic brick of table 1 embodiment 1-9
Each raw material of the present invention all can be by commercially available.As:
Zhuhai mud is purchased from Zhuhai City mud aggregate plant;
Jiangxi washed-out sand is purchased from Nanchang City Sha Chang;
Luoding stone flour is purchased from Luoding City stone flour factory;
Wilkinite is purchased from Weifang dragon and phoenix wilkinite company limited;
Red clay purchased from: Xushui County is chemical building material factory too;
Ball clay purchased from: the Hua Xiangtao of Huizhou City expects company limited;
Lime borate purchased from: the Hua Xiangtao of Huizhou City expects company limited;
Wollastonite purchased from: the Hua Xiangtao of Huizhou City expects company limited;
Burn talcum purchased from: the Hua Xiangtao of Huizhou City expects company limited;
Diopside purchased from: the Hua Xiangtao of Huizhou City expects company limited;
The method that the vitreous ceramic adobe material formula that uses embodiment 1-9 to provide is prepared vitreous ceramic brick is identical with the preparation method of traditional vitreous ceramic brick, and those skilled in the art can design according to the expertise of oneself, and typical but non-limiting example has:
(1) starting material of the vitreous ceramic adobe material formula providing by table 1 are prepared burden into ball mill by forklift, and ball milling fineness control 250 mesh screen residue≤0.5% can be for example 0.4%, 0.3% etc.; Mud through three roads repeatedly deironing sieve, guarantee to remove not levigate raw material and impurity iron,
(2) it is half dry-pressing formed that powder step (1) being obtained adopts, forming pressure 28-34MPa, such as 29MPa, 28.5MPa, 32MPa, 32.6MPa, 33.5MPa, 33.8MPa etc.Meanwhile, it is better that thickness difference same brick is controlled at 30 decimillimeters, is controlled at 40 decimillimeters better with four jiaos of thickness differences of a collection of brick.
(3) burn till and cold machining process
Described temperature of burning till is 1100 ± 20 DEG C, for example 1081 DEG C, 1088 DEG C, 1095 DEG C, 1100 DEG C, 1105 DEG C, 1113 DEG C, 1119 DEG C etc.; Described firing period is 45 ± 5min, such as 41min, 44min, 49min etc.; Further preferably, the cold stage of the tail of sintering process is with 20-80 DEG C/min cooling, and such as rate of temperature fall is 22 DEG C/min, 29 DEG C/min, 35 DEG C/min, 39 DEG C/min, 45 DEG C/min, 57 DEG C/min, 68 DEG C/min, 76 DEG C/min etc.
(4) edging polishing makes vitreous ceramic brick.
Comparative example
Taking disclosed embodiment 2 in CN 101634184 as comparative example 1;
Taking disclosed embodiment 1 in CN 101050107 as comparative example 2.
Performance test
Table 2 is the indices of performance test, the testing standard of each index.
The performance test methods list of table 2 vitreous ceramic adobe material
Test item Operative norm National standard
Water-intake rate (%) GB/T3810.3-2006 ≤0.4
The modulus of rupture (MPa) ISO10545-4:1994 Be greater than 35
Mohs' hardness EN101:1984 6 grades
Resistance to acid JC/T 1095-2009 Be less than 0.08
Alkali-resistivity JC/T 1095-2009 Be less than 0.05
Resistance to soiling JC/T 1095-2009 Be less than 0.08
Heat is steady 01 qualitative JC/T 1095-2009 Be greater than 3
Internal radiation index (Ira) GB6566-2001 Category-A is less than 1.0
External radiation exposure index (I γ) GB6566_2001 Category-A is less than 0.6
Table 3 is the performance test results contrast table of embodiment 1-6:
The performance test results of table 3 embodiment 1-6 and comparative example
Table 4 is the performance test results contrast table of embodiment 7-9 and comparative example:
The performance test results of table 4 embodiment 7-9 and comparative example
Can be found out by the performance test results, the present invention is down at firing temperature under the condition of 1100 ± 20 DEG C, fires the still excellent performance of vitreous ceramic brick obtaining.Overcome the increase of the vitreous ceramic brick fragility causing due to a large amount of glassy phases, simultaneously due to the coordinating of other raw materials, do not cause the rising of the firing temperature causing due to the minimizing of potassium, sodium content and the prolongation of firing period yet.
Applicant's statement, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, and the selections of the equivalence replacement to the each raw material of product of the present invention and the interpolation of ancillary component, concrete mode etc., within all dropping on protection scope of the present invention and open scope.

Claims (29)

1. a blank for vitreous ceramic brick, is characterized in that, Na in described blank 2content≤4.53wt% of O, K 2content≤3.66wt% of O;
Described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%,
Wherein, described low temperature clay is selected from Zhuhai mud; Describedly be selected from Jiangxi washed-out sand containing lithium washed-out sand; Described hypothermia grait is selected from Luoding stone flour;
Described fat clay is selected from the fat clay of plasticity index >=15;
Described auxiliary flux is selected from diopside and/or burns talcum.
2. the blank of vitreous ceramic brick as claimed in claim 1, is characterized in that, described fat clay is selected from the combination of any a kind or at least 2 kinds in wilkinite, ball clay, kieselguhr, red clay.
3. the blank of vitreous ceramic brick as claimed in claim 1 or 2, is characterized in that, described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
4. the blank of vitreous ceramic brick as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%,
Or described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
5. the blank of vitreous ceramic brick as claimed in claim 1; it is characterized in that; in described blank, be added with softening agent, described softening agent is selected from the combination of any a kind or at least 2 kinds in DOP, PEG, glycerol, CMC, softening agent HS, softening agent JA, DBP, BBP.
6. the blank of vitreous ceramic brick as claimed in claim 5, is characterized in that, described softening agent is selected from DOP/PEG and/or CMC.
7. the blank of the vitreous ceramic brick as described in claim 5 or 6, is characterized in that, the addition of described softening agent is 0.5-5%.
8. the blank of vitreous ceramic brick as claimed in claim 7, is characterized in that, the addition of described softening agent is 1-5%.
9. the blank of vitreous ceramic brick as claimed in claim 8, is characterized in that, the addition of described softening agent is 2-4%.
10. the blank of vitreous ceramic brick as claimed in claim 1, is characterized in that, the chemical constitution of described Zhuhai mud mainly comprises: Al 2o 318-22%, SiO 265-74%, Fe 2o 30.8-1.4%, TiO 20.50-0.53%, K 2o0.9-1.5%, Na 2o0.05-0.09%, CaO0.05-0.10%, MgO0.28-33%.
The blank of 11. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described Zhuhai mud mainly comprises: Al 2o 320.32%, SiO 269.09%, Fe 2o 31.1%, TiO 20.53%, K 2o1.17%, Na 2o0.07%, CaO0.07%, MgO0.31%.
The blank of 12. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described Jiangxi washed-out sand mainly comprises: Al 2o 316-20%, SiO 268-74%, Fe 2o 30.05-0.13%, TiO 20.008-0.013%, K 2o1.3-1.9%, Na 2o4-10%, CaO0.20-0.30%, MgO0.008-0.013%, Li 2o0.4-1.1%.
The blank of 13. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described Jiangxi washed-out sand mainly comprises: Al 2o 317.74%, SiO 271.24%, Fe 2o 30.08%, TiO 20.01%, K 2o1.63%, Na 2o7.09%, CaO0.25%, MgO0.01%, Li 2o0.67%.
The blank of 14. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described Luoding stone flour mainly comprises: Al 2o 311-17%, SiO 272-80%, Fe 2o 30.36-0.46%, TiO 20.03-0.05%, K 2o3-7%, Na 2o2-4%, CaO0.1-0.5%, MgO0.08-0.12%.
The blank of 15. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described Luoding stone flour mainly comprises: Al 2o 314.02%, SiO 275.77%, Fe 2o 30.41%, TiO 20.04%, K 2o5.29%, Na 2o2.7%, CaO0.23%, MgO0.1%.
The blank of 16. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described diopside mainly comprises: Al 2o 31.0-1.8%, SiO 253-71%, Fe 2o 30.3-0.9%, TiO 20.04-0.08%, K 2o0.13-0.21%, Na 2o0.33-0.43%, CaO20-28%, MgO13-21%.
The blank of 17. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described diopside mainly comprises: Al 2o 31.38%, SiO 256.19%, Fe 2o 30.59%, TiO 20.06%, K 2o0.17%, Na 2o0.38%, CaO23.6%, MgO16.63%.
The blank of 18. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described burning talcum mainly comprises: Al 2o 31.3-2.1%, SiO 263-70%, Fe 2o 30.3-0.7%, TiO 20.008-0.012%, K 2o0.08-0.12%, Na 2o0.3-0.7%, CaO0.8-1.4%, MgO22-28%.
The blank of 19. vitreous ceramic bricks as claimed in claim 1, is characterized in that, the chemical constitution of described burning talcum mainly comprises: Al 2o 31.74%, SiO 266.19%, Fe 2o 30.49%, TiO 20.01%, K 2o0.1%, Na 2o0.48%, CaO1.14%, MgO24.63%.
The blank of 20. vitreous ceramic bricks as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
The blank of 21. vitreous ceramic bricks as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
The blank of 22. vitreous ceramic bricks as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
The each component sum of described blank is 100%.
The blank of 23. vitreous ceramic bricks as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
The blank of 24. vitreous ceramic bricks as claimed in claim 1, is characterized in that, described blank by weight percentage composition comprises following component:
25. 1 kinds of vitreous ceramic bricks, is characterized in that, described vitreous ceramic brick is obtained by the blank sintering of the vitreous ceramic brick one of claim 1-25 Suo Shu, and the thickness of described vitreous ceramic brick is 6-8mm, water-intake rate≤0.5%, the modulus of rupture >=43.
The preparation method of 26. 1 kinds of vitreous ceramic bricks as claimed in claim 25, is characterized in that, described method comprises the steps:
Batching, ball milling, sieves, stirs, spraying, old, pressed compact moulding, dry, burn till edging polishing;
In described mechanical milling process, control slurry 250 objects to tail over≤5%.
The preparation method of 27. vitreous ceramic bricks as claimed in claim 26, is characterized in that, described pressed compact is shaped to the moulding of semidrying pressed compact, and the pressure of described pressed compact moulding is 28-34MPa.
The preparation method of 28. vitreous ceramic bricks as claimed in claim 27, is characterized in that, the pressure of described pressed compact moulding is 30MPa.
The preparation method of 29. vitreous ceramic bricks as claimed in claim 28, is characterized in that, described in the temperature of burning till be 1100 ± 20 DEG C, described firing period is 45 ± 5min.
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CN104803711B (en) * 2015-04-13 2017-03-15 东莞市唯美装饰材料有限公司 A kind of Iron-ore Slag colorant for replacing base substrate black and preparation method thereof
CN105110797A (en) * 2015-08-03 2015-12-02 广西新舵陶瓷有限公司 High-temperature fluxing agent and application
CN108911702A (en) * 2018-09-18 2018-11-30 龙泉瓯江青瓷有限公司 A kind of hard high-strength reinforcing porcelain
CN111925195A (en) * 2020-07-21 2020-11-13 东莞市唯美陶瓷工业园有限公司 Ceramic tile with high modulus of rupture and preparation method thereof

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