CN106517790B - A kind of magnesia enamel material formula and preparation method - Google Patents
A kind of magnesia enamel material formula and preparation method Download PDFInfo
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- CN106517790B CN106517790B CN201610979950.2A CN201610979950A CN106517790B CN 106517790 B CN106517790 B CN 106517790B CN 201610979950 A CN201610979950 A CN 201610979950A CN 106517790 B CN106517790 B CN 106517790B
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- 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
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
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- 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
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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
- 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
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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
- 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
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Abstract
The present invention relates to field of ceramic preparation technology, in particular to a kind of magnesia enamel material formula and preparation method.The present invention provides a kind of magnesia enamel material formula, is mainly prepared by the raw material of following percent mass ratio, summation 100wt%:40wt%-60wt% frit, 10wt%-20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt% kaolin, 15wt%-25wt% quartz.Glaze of the invention is to be covered on to be molded on magnesia porcelain billet body using isostatic pressing mode, and grand feu forms together with green body；Magnesia porcelain isostatic pressing changes traditional craft and semimechanized domestic ceramics molding mode, realize the automation of domestic ceramics molding procedure, the product structured shape degree of compacting is good, deformation is few, and it is with short production cycle, kiln can be entered after isostatic pressing automatic trimming immediately and burn firing, better than traditional molding production technology of plaster cast.Using magnesia porcelain products glaze paint gloss prepared by the present invention, soft, smooth, hardness is good, and resistance to dish-washing machine and acid-alkali-resistant degree are good.
Description
Technical field
The present invention relates to field of ceramic preparation technology, in particular to a kind of magnesia enamel material formula and preparation method.
Background technique
Magnesia porcelain material is a kind of high-grade ceramic material that can be matched in excellence or beauty with Bone China, and Britain is early in 18th century just with cunning
Stone is that primary raw material makes magnesia porcelain, since its porcelain is fine and smooth, whiteness is good, transparency is high, high mechanical strength, the not spies such as cracky
Point, favors by industry.The daily pottery of talcum matter has been succeeded in developing by primary raw material of Shandong Jiangzhou talcum in the Shandong of China in 1977
Porcelain, but due to conditionalities such as technology, raw material, furnace equipment, fuel at that time, that there are processabilities is poor for the porcelain kind；It is burnt into model
It encloses narrow；The big technical problem of later period aging three seriously constrains the scale of the porcelain kind, industrial applications are promoted.
With the further in-depth of China's reform and opening-up and being constantly progressive for domestic ceramics ceramics, China's domestic ceramics
Manufacturing technology, product quality, production equipment of industry etc. have the development advanced by leaps and bounds, but flourishing with external domestic ceramics
Country is compared to still there is a big difference.Daily water-consumption forecasting is in some developed countries in recent years, because by the energy, resource, labour etc.
Factor restricts, and economic benefit is subject to high impact, and production scale generally reduces, but the degree of automation and product of production process
Class be continuously improved, many new and high technologies are used.Especially equal pressing forming technology is just daily in Germany from the seventies
Ceramic industry is applied, and has been generallyd use at present in Germany, and popularized American-European and other countries.Greatly improve labour
Productivity.
Talcum is the primary raw material of magnesia porcelain material, is kept in provinces such as China Liaoning, Shandong, Hunan, Guangxi, Jiangxi
The talcum mineral resources of a large amount of difference grade, therefore China has the magnesia advantageous resources advantage of porcelain of production.Traditional
Ceramic molding mode is mainly roll forming, injection forming, plastic pressure forming etc., and it is magnesia to use isostatic pressing new technology to make
Porcelain is still initiated in China.The novel magnesium for being suitable for isostatic pressing is successfully developed by years of researches in state's porcelain Yongfeng source
Matter porcelain billet material formula keeps China's domestic ceramics industry almost the same after raw material preparation and firing process equipment and external ceramics power
Outside, and successfully mechanization, the automation for realizing molding procedure, it is poor with the labor efficiency of external ceramics power to have further reduced
Away from.
There are very big difference, its uneven surface because of the magnesia porcelain billet body of isostatic pressing and using the green body of rolling and slip casting
Whole, traditional magnesia glaze is applied phenomena such as will appear pin hole, glaze paint ripple, tangerine peel on this green body, is unable to reach ideal
Effect, therefore develop a kind of new glaze for being different from traditional glaze formula and become magnesia porcelain isostatic pressing and can industrialize big life
The key point of production.This problem of very good solution of the present invention, so that magnesia porcelain isostatic pressing industrialized production becomes
Reality greatly improves production capacity, reduces production cost, shortens the production cycle.
Since the magnesia porcelain billet body of isostatic pressing is different from the green body compactness using rolling and slip casting, isostatic pressing
Billet surface out-of-flatness, normal high temperature raw glaze applies that will appear glaze paint out-of-flatness, pin hole, ripple etc. in this billet surface all
Crinosity disease introduces part frit on this basis, increases the high-temperature fusion performance of glaze, be allowed to by improving raw material glaze formula
The billet surface that isostatic pressing out-of-flatness can be filled well, improves the glossiness of glaze paint；And properly increase the surface of glaze
Tension, to increase the flatness of glaze paint；Simultaneously production technology is in optimized selection, the ball milling fineness of stringent glaze, glaze layer
Thickness, the strong reasonable selection of calcining system, and production technology is in optimized selection, these defects of very good solution, system
Magnesia porcelain products glaze paint gloss, smooth, soft, the anti-knife and fork, resistance to dish-washing machine, acid and alkali-resistance obtained.
Summary of the invention
The present invention provides a kind of magnesia enamel material formula and preparation method, it is intended to it is designed by the formula of science, it is optimal
Process route, overcome occur on the magnesia porcelain billet body of isostatic pressing glaze paint out-of-flatness, pin hole, ripple the defects of.
The present invention provides a kind of magnesia enamel material formula, is mainly prepared by the raw material of following percent mass ratio, always
With 100wt%:40wt%-60wt% frit, 10wt%-20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt%
Kaolin, 15wt%-25wt% quartz.
As a further improvement of the present invention, frit includes following ingredient and quality percentage in the magnesia enamel material formula
Than: 50wt%-70wt%SiO2, 4wt%-8wt%Al2O3, 0.01wt%-0.1wt%Fe2O3, 10wt%-16wt%CaO,
1wt%-5wt%MgO, 3wt%-6wt%K2O, 0.1wt%-1.0wt%Na2O, 5wt%-10wt%Zn, 0wt%-1wt%
ZrO2Or HfO2, 0wt%-1.0wt%SrO, 0.1wt%-1.0wt%Li2O。
As a further improvement of the present invention, the chemical composition in the magnesia enamel material formula are as follows: 60wt%-70wt%
SiO2, 6wt%-12wt%Al2O3, 0.1wt%-0.2wt%Fe2O3, 6wt%-12wt%CaO, 0.1wt%-2wt%MgO,
3wt%-6wt%K2O, 0.1wt%-1wt%Na2O, 2wt%-6wt%ZnO.0wt%-1wt%ZrO2Or HfO2, 0wt%-
1.0wt%SrO, 0.1wt%-1.0wt%Li2O。
As a further improvement of the present invention, potassium feldspar controls K2O+Na2O >=12.5wt%, wherein K2O >=10wt%；It is high
Ridge soil controls Fe2O3≤ 0.3wt%, TiO2≤ 0.1wt% controls the content of zinc oxide (ZnO) in glaze below 6%.
The present invention also provides a kind of magnesia enamel preparation method for material, comprising the following steps:
S1: the preparation of magnesia glaze frit: the ingredient of following mass percent: 25%~35% quartz is weighed
Powder, the feldspar in powder of 30wt%~40wt%, 5wt~10wt% ZnO, 20wt~30wt% calcium carbonate CaCO3, 3wt%
~8wt% calcinated talc powder, 0wt%-1wt% zirconium oxide ZrO2Or hafnium oxide HfO2, 0wt%-1.0wt% strontium carbonate
SrCO3, 0.1wt%-1.0wt% spodumene, after mixing, 1300~1400 DEG C melt, be put into water quenching in cold water and be made
Frit；By frit be fitted into ball mill it is levigate after, dehydration, drying, crush, sieving, be made frit.
S2: magnesia glaze 100wt%:40wt%-60wt% frit, 10wt%- are prepared by following mass percent
20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt% kaolin, 15wt%-25wt% quartz.
S3: by the resulting mixture of S2 step together in the ball mill after wet ball grinding to defined fineness, glaze blowing,
Except iron, sieving, adjustment specific gravity, flow velocity are spare.
S4: glaze is uniformly covered on low temperature biscuiting using manual, glaze spraying or machine glaze pouring method by gained glaze
Billet surface；
S5: sintering air brushing: blank grand feu that step S4 is obtained, decoration colored drawing obtain the magnesia porcelain.
As a further improvement of the present invention, the step S4 the following steps are included:
With the qualification material of spray drying, using etc. the molding modes of static pressure form, and with isostatic pressing equipment automatic grinding
Magnesia porcelain essence base is made in side repaired biscuit.Qualified isostatic pressing essence base is packed into roller kilns, carries out 900-1000 DEG C, period 8-11h
Low temperature biscuiting, product is spare through pick.
As a further improvement of the present invention, the high temperature biscuiting in the step S5 the following steps are included: by manual glazing,
The magnesia porcelain billet of glaze spraying or machine leaching glaze is under the conditions of 1280 ± 10 DEG C, firing period 8-11 hours, soak 1-2 hours
Glaze firing, obtains magnesia porcelain products.
The beneficial effects of the present invention are: high temperature glaze of the invention breach the magnesia porcelain raw glaze of tradition apply equal static pressure at
It is the defects of glaze paint out-of-flatness for occurring on parison body, pin hole, ripple, magnesia porcelain products whiteness height obtained, glaze paint gloss, soft
With anti-knife and fork, resistance to dish-washing machine, acid and alkali-resistance.The mineral that raw material is that reserve is extremely abundant, cheap of base used in the present invention
Raw material, practical face is extremely wide, and resulting product principal crystalline phase is stable former enstatite crystal phase, function admirable.Green body of the invention
Preparation method uses isostatic pressing mode, changes traditional craft and semimechanized domestic ceramics molding mode, real
The automation of domestic ceramics molding procedure is showed, and with short production cycle, kiln firing can be entered after isostatic pressing immediately, be better than
The molding production technology of traditional plaster cast.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.
Magnesia enamel material formula of the invention, is mainly prepared by the raw material of following percent mass ratio, summation
100wt%:40wt%-60wt% frit, 10wt%-20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt% high
Ridge soil, 15wt%-25wt% quartz.
In the selection to raw material, the content of each element in raw material is also controlled in a certain range.Magnesia glaze
Fe in formula2O3And TiO2Content control be Fe2O3≤ 0.2wt%, TiO2≤ 0.1wt%；Potassium feldspar controls K2O+Na2O≥
12.5wt%, wherein K2O >=10wt%；Kaolin controls Fe2O3≤ 0.3wt%, TiO2≤ 0.1wt%；It controls in raw material
Fe2O3And TiO2Primarily to guaranteeing the purity of raw material, whiteness after the burning of product, the magnesia porcelain high temperature that the present invention makes are improved
Whiteness can achieve 80-83 degree after glaze firing up to 85-88 degree after biscuiting, in addition translucent, entire product is presented in porcelain body
It is very soft and moist；Potassium feldspar controls K2O+Na2O >=12.5wt%, the work of feldspar main landing cryogenic temperature in green body sintering process
With K-feldspar K2The higher melting behaviour of O content is better；ZnO usage amount in glaze controls the excessively high zinc oxide within 6%
Content will cause glaze paint part crystallization, and glossiness is deteriorated instead；
In magnesia enamel material formula of the invention, chemical composition are as follows: 60wt%-70wt%SiO2, 6wt%-12wt%
Al2O3, 0.1wt%-0.2wt%Fe2O3, 6wt%-12wt%CaO, 0.1wt%-2wt%MgO, 3wt%-6wt%K2O,
0.1wt%-1wt%Na2O, 2wt%-6wt%ZnO, 0wt%-1wt%ZrO2Or HfO2, 0wt%-1.0wt%SrO,
0.1wt%-1.0wt%Li2O。
Zirconium oxide ZrO in above-mentioned formula2, hafnium oxide HfO2One selection is selected for the two.
The present invention provides three Example formulations:
One: 55wt% frit of embodiment, 15wt% feldspar, 4wt% calcite, 8wt% kaolin, 18wt% quartz.
A kind of magnesia enamel material formula, is mainly prepared by the raw material of following percent mass ratio, summation 100wt%:
The chemical composition of this formulation examples is as follows: (wt%)
| Classification | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | ZnO | IL. |
| Frit | 65.49 | 5.42 | 0.09 | 0.03 | 14.10 | 1.62 | 3.90 | 0.07 | 8.98 | 0.08 |
| Quartz | 99.28 | 0.23 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 |
| Feldspar | 67.70 | 17.21 | 0.08 | 0.06 | 0.35 | 0.01 | 11.34 | 3.57 | 0.00 | 0.38 |
| Kaolin | 50.49 | 34.59 | 0.20 | 0.01 | 0.20 | 0.34 | 2.71 | 0.06 | 0.00 | 11.20 |
| Calcite | 0.22 | 0.45 | 0.01 | 0.05 | 53.27 | 3.77 | 0.00 | 0.00 | 0.00 | 42.29 |
| Formula | 68.24 | 8.35 | 0.10 | 0.02 | 9.92 | 1.08 | 4.09 | 0.39 | 4.94 | 2.69 |
It is as follows: by the product main performance index that this formula is produced
Illustrate: 1, this formulation examples firing temperature cannot be below 1260 DEG C, otherwise glaze paint low in glossiness, and water absorption rate can be greater than
0.1%, the green body coefficient of expansion increases, and product thermal stability is deteriorated；2, corner etc. was cleaned before glazing and is justified by magnesia porcelain billet
It is sliding, otherwise it will appear at wheel angle unglazed (not rest phenomenon)；3, glazed thickness control is that 0.25-0.35mm is good, is lower than 0.2mm
When glaze paint out-of-flatness, when being higher than 0.5mm, glaze paint cracks, while thermal stability is deteriorated (be lower than 160 degree).
Embodiment two:
A kind of magnesia enamel material formula, is mainly prepared by the raw material of following percent mass ratio, summation 100wt%:
One: 40wt% frit of embodiment, 30wt% feldspar, 4wt% calcite, 8wt% kaolin, 18wt% quartz.
A kind of magnesia enamel material formula, is mainly prepared by the raw material of following percent mass ratio, summation 100wt%:
The chemical composition of this formulation examples is as follows: (wt%)
| Classification | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | ZnO | IL. |
| Frit | 65.49 | 5.42 | 0.09 | 0.03 | 14.10 | 1.62 | 3.90 | 0.07 | 8.98 | 0.08 |
| Quartz | 99.28 | 0.23 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 |
| Feldspar | 67.70 | 17.21 | 0.08 | 0.06 | 0.35 | 0.01 | 11.34 | 3.57 | 0.00 | 0.38 |
| Kaolin | 50.49 | 34.59 | 0.20 | 0.01 | 0.20 | 0.34 | 2.71 | 0.06 | 0.00 | 11.20 |
| Calcite | 0.22 | 0.45 | 0.01 | 0.05 | 53.27 | 3.77 | 0.00 | 0.00 | 0.00 | 42.29 |
| Formula | 68.86 | 10.12 | 0.10 | 0.04 | 7.81 | 0.83 | 5.22 | 0.73 | 3.59 | 2.69 |
It is as follows: by the product main performance index that this formula is produced
Illustrate: 1, this formulation examples firing temperature cannot be below 1270 DEG C, otherwise glaze paint low in glossiness, and water absorption rate can be greater than
0.1%, the green body coefficient of expansion increases, and product thermal stability is deteriorated；2, glazed thickness control is that 0.25-0.35mm is best, is lower than
Glaze paint out-of-flatness when 0.15mm, when being higher than 0.5mm, glaze paint cracks, while thermal stability is deteriorated and (is lower than 160 degree).
Embodiment three:
A kind of magnesia porcelain billet material formula, is mainly prepared by the mineral raw material of following percent mass ratio, summation
100wt%:60wt% frit, 12wt% feldspar, 4wt% calcite, 6wt% kaolin, 18wt% quartz.
The chemical composition of this formulation examples is as follows: (wt%)
| Classification | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | ZnO | IL. |
| Frit | 65.49 | 5.42 | 0.09 | 0.03 | 14.10 | 1.62 | 3.90 | 0.07 | 8.98 | 0.08 |
| Quartz | 99.28 | 0.23 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 |
| Feldspar | 67.70 | 17.21 | 0.08 | 0.06 | 0.35 | 0.01 | 11.34 | 3.57 | 0.00 | 0.38 |
| Kaolin | 50.49 | 34.59 | 0.20 | 0.01 | 0.20 | 0.34 | 2.71 | 0.06 | 0.00 | 11.20 |
| Calcite | 0.22 | 0.45 | 0.01 | 0.05 | 53.27 | 3.77 | 0.00 | 0.00 | 0.00 | 42.29 |
| Formula | 68.56 | 7.42 | 0.08 | 0.03 | 10.61 | 1.15 | 3.88 | 0.32 | 5.39 | 2.77 |
It is as follows: by the product main performance index that this formula is produced
Illustrate: 1,1270-1290 DEG C of this formulation examples basic optimum burning temperature-forming, the glaze paint when temperature is higher than 1300 DEG C
There is a little pore and slight orange peel glaze phenomenon；2, frit used in this formulation examples is higher, and glaze paint glossiness is fine after burning, but
Need to be round and smooth by corner etc. scouring before glazing by magnesia porcelain billet, it otherwise will appear unglazed (not rest phenomenon) or stream at wheel angle
Glaze phenomenon；3, glazed thickness control is that 0.25-0.35mm is good, glaze paint out-of-flatness when being lower than 0.2mm, the glaze paint when being higher than 0.5mm
It cracks, while thermal stability is deteriorated and (is lower than 160 degree).
The present invention provides a kind of magnesia enamel preparation method for material, comprising the following steps:
S1: the preparation of magnesia glaze frit: the ingredient of following mass percent: the stone of 25wt%~35wt% is weighed
ZnO, 20wt~30wt% calcium carbonate CaCO of Ying Fen, 30wt%~40wt% feldspar in powder, 5wt~10wt%3,
3wt%~8wt% calcinated talc powder, 0wt%-1wt% zirconium oxide (hafnium) Zr (Hf) O2, 0wt%-1.0wt% strontium carbonate SrCO3,
0.1wt%-1.0wt% spodumene melts at 1300~1400 DEG C after mixing, is put into water quenching in cold water and frit is made；It will
Frit be fitted into it is levigate in ball mill after, dehydration, drying, crush, sieving, be made frit.
S2: magnesia glaze 100wt%:40wt%-60wt% frit, 10wt%- are prepared by following mass percent
20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt% kaolin, 15wt%-25wt% quartz.
S3: by the resulting mixture of S2 step together in the ball mill after wet ball grinding to defined fineness, glaze blowing,
Except iron, sieving, adjustment specific gravity, flow velocity are spare.
S4: glaze is uniformly covered on low temperature biscuiting using manual, glaze spraying or machine glaze pouring method by gained glaze
Billet surface；
S5: sintering air brushing: blank grand feu that step S4 is obtained, decoration colored drawing obtain the magnesia porcelain.
Wherein, the step S3 the following steps are included:
Glaze Ball-milling Time is 28-34 hours, distribution of particles control are as follows: accumulating weight≤2um:8-15%；≤30um:
100%；The ball milling fineness of glaze is very big on performance influence, and when glaze is too thick, glaze is easily layered, and easily precipitates, is unfavorable for operating,
The vitrification point that glaze paint can be improved simultaneously, causes glossiness to be deteriorated；When fineness is too thin, although beneficial to vitreous, shrink
Greatly, easily there is the defects of contracting glaze.By test of many times, determine that best particle distribution range of the invention is as above.
Wherein, the step S4 the following steps are included:
With the qualification material of spray drying, using etc. the molding modes of static pressure form, and with isostatic pressing equipment automatic grinding
Magnesia porcelain essence base is made in side repaired biscuit.
Wherein, the low temperature biscuiting in the step S4 the following steps are included:
Qualified isostatic pressing essence base is packed into roller kilns, carries out the low temperature biscuiting of 900-1000 DEG C, period 8-11h, system
Product are spare through pick.The purpose of green body biscuiting: first is that improving the intensity of green body, the breakage in subsequent glazing stage is reduced；Second is that logical
Organic matter, constitution water and the other gases etc. for crossing part after this temperature biscuiting can be discharged, it is possible to reduce glaze paint pin hole improves glaze
Face quality；Third is that can carry out quality inspection to biscuit, unqualified biscuit does not flow into next procedure, improves the qualification rate of glaze firing,
Lay the unqualified biscuit come simultaneously ball milling, recycling can improve the utilization rate of raw material, reduce environmental pollution again.When
When the temperature is excessively high, when being such as higher than 1100 DEG C, the sucking ability of green body declines, using conventional manual glazing or glaze pouring method for biscuiting
It can not use heating method glazing can be with, but need to increase equipment, facility, complex procedures are unfavorable to guarantee the normal sucking of glaze paint
In production；Effect is unobvious when temperature is too low, first is that blank strength is not high enough, does not help glazing breakage is reduced；Second is that base
The exclusion such as intracorporal organic matter, constitution water is limited, does not have benefit to glaze quality is improved；It is selected by test of many times biscuiting temperature
This sintering curve.
Wherein, the glazing in the step S4 the following steps are included:
The magnesia glaze ground is uniform by glaze using manual glazing, glaze spraying or full-automatic machine glaze pouring method
Be covered on plain good billet surface.Manual glazing is suitable for slip casting product, such as pot, sugar bowl, milk cylinder, cup solid
Part, the full-automatic glaze that drenches are suitable for square position class product, and high-efficient, glaze layer is uniform；Glaze spraying is suitable for specialities, such as cylinder of big part,
The products such as vase.
Wherein, the grand feu in the step S5 the following steps are included:
It is high by the magnesia porcelain billet of manual glazing, glaze spraying or machine leaching glaze at 1280 ± 10 DEG C, firing period 8-11 hours
Temperature heat preservation is fired by glaze under the conditions of 1-2 hours, obtains magnesia porcelain products.Depending on magnesia porcelain firing range is by being formulated, work as formula
Firing temperature is just scheduled on some range after determination.At 1280 ± 10 DEG C, the period is the optimum burning temperature-forming that formulation examples determine
8-11 hours, high-temperature holding time was burnt under this calcining system at 1-2 hours, reacted most abundant, and transformation of crystal is most complete,
The sintering character of products obtained therefrom is best, and water absorption rate is minimum, and the resistance to heat shocks of product can preferably, while the glaze glossiness of product is most
It is good.When firing temperature oversteps the extreme limit, product will appear burning, anti-expansion occurs, and the porosity will increase, and water absorption rate also increases, and produce
There is the problems such as orange peel glaze, pin hole in the resistance to thermal shock degradation of product, glaze paint；When firing temperature is too low, green body water absorption rate is excessively high, instead
Should not exclusively, product crystal form is unstable, and thermal stability is poor；Glaze paint vitreous simultaneously is bad, out-of-flatness, not gloss.Certainly firing
The completion for being conducive to reaction is appropriately extended in period, but yield can be reduced, and production cost will increase dramatically；By test of many times,
It can guarantee that the firing property of product is best under above-mentioned calcining system, cost is minimum.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of magnesia enamel material formula, which is characterized in that be mainly prepared by the raw material of following percent mass ratio, summation
100wt%:40wt%-60wt% frit, 10wt%-20wt% feldspar, 4wt%-10wt% calcite, 5wt%-10wt% high
Ridge soil, 15wt%-25wt% quartz；Chemical composition in the magnesia enamel material formula are as follows: 60wt%-70wt%SiO2,
6wt%-12wt%Al2O3, 0.1wt%-0.2wt%Fe2O3, 6wt%-12wt%CaO, 0.1wt%-2wt%MgO, 3wt%-
6wt%K2O, 0.1wt%-1wt%Na2O, 2wt%-6wt%ZnO, 0wt%-1wt%ZrO2 or HfO2, 0wt%-1.0wt%
SrO, 0.1wt%-1.0wt%Li2O。
2. magnesia enamel material formula according to claim 1, which is characterized in that frit packet in the magnesia enamel material formula
Containing following ingredient and mass percent: 50wt%-70wt%SiO2, 4wt%-8wt%Al2O3, 0.01wt%-0.1wt%
Fe2O3, 10wt%-16wt%CaO, 1wt%-5wt%MgO, 3wt%-6wt%K2O, 0.1wt%-1.0wt%Na2O,
5wt%-10wt%Zn, 0wt%-1wt%ZrO2 or HfO2, 0wt%-1.0wt%SrO, 0.1wt%-1.0wt%Li2O。
3. a kind of magnesia enamel preparation method for material as claimed in claim 1 or 2, which comprises the following steps:
S1: the preparation of magnesia glaze frit: the ingredient of following mass percent: the quartz of 25 wt of wt % ~ 35 % is weighed
Powder, the feldspar in powder of 30 wt of wt % ~ 40 %, the zinc oxide ZnO of the wt of 5 wt ~ 10 %, the wt of 20 wt ~ 30 % calcium carbonate
CaCO3, the 3 wt % calcinated talc powders of wt % ~ 8,0wt%-1wt% zirconium oxide ZrO2 or hafnium oxide HfO2, 0wt%-
1.0wt% strontium carbonate SrCO3,0.1wt%-1.0wt% spodumene is melted at 1300 ~ 1400 DEG C, is put into cold after mixing
Big frit is made in water quenching in water；By big frit be fitted into ball mill it is levigate after, dehydration, drying, crush, sieving, be made frit；
S2: magnesia glaze 100wt%:40wt%-60wt% frit, 10wt%-20wt% are prepared by following mass percent
Feldspar, 4wt%-10wt% calcite, 5wt%-10wt% kaolin, 15wt%-25wt% quartz；
S3: by the resulting mixture of S2 step together in the ball mill after wet ball grinding to defined fineness, glaze blowing is removed
Iron, sieving, adjustment specific gravity, flow velocity are spare；
S4: glaze is uniformly covered on the base of low temperature biscuiting using manual, glaze spraying or machine glaze pouring method by gained glaze
Body surface face；
S5 is sintered air brushing: blank grand feu that step S4 is obtained, decoration colored drawing obtain the magnesia porcelain.
4. magnesia enamel preparation method for material according to claim 3, which is characterized in that the step S3 includes following step
It is rapid:
Glaze Ball-milling Time is 28-34 hours, distribution of particles control are as follows: accumulating weight≤2um:8-15%；≤30um:100%.
5. magnesia enamel preparation method for material according to claim 3, which is characterized in that the step S4 includes following step
It is rapid:
With the qualification material of spray drying, using etc. the molding modes of static pressure form, and repaired with the automatic edging of isostatic pressing equipment
Magnesia porcelain essence base is made in base.
6. magnesia enamel preparation method for material according to claim 5, which is characterized in that the low temperature biscuiting in the step S4
The following steps are included:
Qualified isostatic pressing essence base is packed into roller kilns, carries out the low temperature biscuiting of 900-1000 DEG C, period 8-11h, product warp
Pick is spare.
7. magnesia enamel preparation method for material according to claim 3, which is characterized in that the glazing in the step S4 includes
Following steps:
The magnesia glaze ground is uniformly covered glaze using manual glazing, glaze spraying or full-automatic machine glaze pouring method
Cover the billet surface good in biscuiting.
8. magnesia enamel preparation method for material according to claim 3, which is characterized in that the grand feu in the step S5
The following steps are included:
By the magnesia porcelain billet of manual glazing, glaze spraying or machine leaching glaze at 1280 ± 10 DEG C, firing period 8-11 hours, high temperature dwell
It is fired by glaze under the conditions of 1-2 hours warm, obtains magnesia porcelain products.
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| CN109081586A (en) * | 2018-10-29 | 2018-12-25 | 广东非凡实业有限公司 | A kind of sanitary ware glaze and its application in robot glaze spraying |
| CN111908792B (en) * | 2020-08-17 | 2022-12-02 | 深圳市国瓷永丰源瓷业有限公司 | Glaze mixture of metal glaze, metal glaze product and preparation process of metal glaze product |
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| CN1884213A (en) * | 2006-06-14 | 2006-12-27 | 山东硅苑新材料科技股份有限公司 | Leadfree fritted glaze suitable for secondary sintering |
| CN101768016A (en) * | 2009-12-29 | 2010-07-07 | 深圳市永丰源实业有限公司 | Enamel color ceramic glaze and production process and application thereof |
| CN102040374A (en) * | 2009-10-19 | 2011-05-04 | 泉州坤达礼品有限公司 | Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof |
| CN103922804A (en) * | 2014-03-24 | 2014-07-16 | 湖南德兴瓷业有限公司 | Highly-transparent medium temperature pea green glaze and preparation method of pea green glaze |
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| US20140154292A1 (en) * | 2012-11-30 | 2014-06-05 | Corning Incorporated | Glass frit antimicrobial coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884213A (en) * | 2006-06-14 | 2006-12-27 | 山东硅苑新材料科技股份有限公司 | Leadfree fritted glaze suitable for secondary sintering |
| CN102040374A (en) * | 2009-10-19 | 2011-05-04 | 泉州坤达礼品有限公司 | Lithium-magnesium ceramic fired at low temperature and manufacturing method thereof |
| CN101768016A (en) * | 2009-12-29 | 2010-07-07 | 深圳市永丰源实业有限公司 | Enamel color ceramic glaze and production process and application thereof |
| CN103922804A (en) * | 2014-03-24 | 2014-07-16 | 湖南德兴瓷业有限公司 | Highly-transparent medium temperature pea green glaze and preparation method of pea green glaze |
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