CN103641447A - Preparation method for engineering ceramic acid and alkali resistant container - Google Patents
Preparation method for engineering ceramic acid and alkali resistant container Download PDFInfo
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- CN103641447A CN103641447A CN201310139334.2A CN201310139334A CN103641447A CN 103641447 A CN103641447 A CN 103641447A CN 201310139334 A CN201310139334 A CN 201310139334A CN 103641447 A CN103641447 A CN 103641447A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000002253 acid Substances 0.000 title abstract description 10
- 239000003513 alkali Substances 0.000 title abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 238000010304 firing Methods 0.000 claims description 30
- 238000000498 ball milling Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 17
- 239000010433 feldspar Substances 0.000 claims description 17
- 229910052744 lithium Inorganic materials 0.000 claims description 17
- 239000004927 clay Substances 0.000 claims description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000005995 Aluminium silicate Substances 0.000 claims description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001354 calcination Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000002932 luster Substances 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 229910052863 mullite Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 241000237502 Ostreidae Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 235000020636 oyster Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000010427 ball clay Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a preparation method for an engineering ceramic acid and alkali resistant container. The preparation method comprises steps of batching of blank material raw materials, forming of the blank material, batching of glaze material raw materials, preparation of the glaze material, biscuiting, glaze application and sintering. The engineering ceramic acid and alkali resistant container has advantages of high acid resistance, high alkali resistance, particularly being free from pollution of media, high mechanical strength, high compactness, high dimensional precision, low water absorption, good heat stability, small thermal expansion coefficients, leak resistance and the like. The carcass is compact, the glaze is bright and clean, and there are no defects of pin holes, glaze shrinkage, thin glaze and the like. The defective percentage is lowered, and the production efficiency is raised. Temperature-resistant requirements to a kiln device are eliminated, and the production cost is lowered. The novel engineering ceramic acid and alkali resistant container has good appearance quality and performance indexes, and is an ideal product raising economic benefits.
Description
Technical field
The invention belongs to earthenware porcelain receptacle field, be specifically related to a kind of preparation technology of engineering ceramics acid-fast alkali-proof container.
Background technology
Acid-fast alkali-proof pottery is a kind of use range clayey half porcelain formed material extremely widely, can be applicable to the industrial circles such as chemical industry, smelting, pharmacy, food, papermaking, oil, it has the advantages such as corrosion-resistant, wear-resisting, pollution-free, be other acid-fast alkali-proof goods be far from can and.Now on market the acid-resistant ceramic product of widespread use be mostly take kaolin be main clay by wet-milling, making beating, concentrate, moulding, oven dry, then prepared by the method for high temperature sintering.Acid-fast alkali-proof ceramic prepared by the method all adopts natural matter, and energy consumption is high, contaminate environment, and carbon emission is high, and cost is high, and the production cycle is long.Engineering ceramics acid-fast alkali-proof container is had relatively high expectations to the intensity of product, water-intake rate, thermal expansivity, thermostability, acid-fast alkali-proof degree, therefore existing ceramic material can not meet the production of engineering ceramics acid-fast alkali-proof container, so be badly in need of a kind of blank glaze and rational firing process that adapts to high-grade engineering ceramics acid-fast alkali-proof container of exploitation.
Summary of the invention
The object of the invention is in order to address the above problem, on the basis making at traditional acid-fast alkali-proof ceramic, develop and innovation, adopt unique and rational blank glaze formula and firing process, thereby a kind of preparation method of novel engineering pottery acid-fast alkali-proof container is provided.
Object of the present invention can reach by following measures:
A preparation method for engineering ceramics acid-fast alkali-proof container, it comprises the steps:
(1) blank raw material: take kaolin, white clay, ceramic chamotte, agalmatolite and lithium feldspar prepares burden as blank raw material;
(2) shaping blank: after being mixed, blank raw material, abrading-ball and water carries out ball milling, then press filtration, then carry out vacuum pugging, obtain the shaping blank of engineering ceramics acid-fast alkali-proof container;
(3) glaze raw material: take lithium feldspar, quartz, Suzhou soil, boron frit, zirconium silicate, zinc oxide, Quilonum Retard and coffee pigment prepares burden as raw material;
(4) glaze: carry out ball milling after glaze raw material, abrading-ball and water are mixed, obtain engineering ceramics acid-fast alkali-proof container glaze;
(5) biscuiting: the shaping blank making is made to base substrate through roll forming and carry out biscuiting;
(6) glazing is burnt till: adopt the method for soaking glaze with glaze, to carry out glazing with engineering ceramics acid-fast alkali-proof container blank after biscuiting, glaze firing and get final product after doing.
Technique of the present invention may be summarized to be following flow process:
Batching → ball milling → sieving → press filtration → vacuum pugging → moulding → biscuiting → glazing → burning till, below is described further each step of present method.
In step (1), consumption that the gross weight of blank raw material of take is 100% each raw material is kaolin 15～20%, white clay 35～42%, ceramic chamotte 5～8%, agalmatolite 15～20%, the quality of each raw material of lithium feldspar 15～20%(and be 100%).
In step (2), the mixing quality of blank raw material, abrading-ball and water is than being 1:1.05～1.15:0.80～0.90, the preferably proportioning of 1:1.1:0.85.Ball-milling Time is more than 20 hours, preferably 24 hours; The deironing of sieving after ball milling; Press filtration to the water ratio of blank is 19-20%, can adopt 40kg pressure filter to carry out press filtration; Described vacuum pugging carries out more than 2 times, preferably 3 times.
In step (3), consumption that the gross weight of glaze raw material of take is 100% each glaze raw material is lithium feldspar 17.5～19.5%, quartzy 15.4～18.5%, Suzhou soil 12.3～16.4%, boron frit 17.9～22.3%, zirconium silicate 15.6～19.4%, zinc oxide 4.2～5.8%, Quilonum Retard 0.5～0.9%, the quality of each raw material of coffee pigment 8.2～9.7%(and be 100%).
In step (4), the mixing quality of glaze raw material, abrading-ball and water is than being 1:1.25～1.35:1.25～1.35, the preferably proportioning of 1:1.3:1.3; Ball-milling Time is more than 40 hours, preferably 48 hours; After ball milling, sieve and make engineering ceramics acid-fast alkali-proof container glaze.
In step (5), biscuiting temperature is 1015～1025 ℃, is preferably 1020 ℃, and firing period is 4.5-5 hour.
In step (6), glaze firing adopts roller kiln oxydizing flame to burn till, and firing temperature is 1200～1210 ℃, and firing period is 3～7 hours, preferably 6.5-7 hour.A kind of preferred sintering curve of this glaze firing is: kiln temperature evenly rose to 925 ℃～935 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, rise to 1200～1210 ℃ again, then in 0.5-1 hour, be down to 1085～1095 ℃, in 20 minutes, be down to fast again 820 ℃～840 ℃, then in 1-1.5 hour, be down at a slow speed 620 ℃～640 ℃, finally naturally cool to again room temperature, just become after the assay was approved qualified product.A kind of preferred sintering curve is: kiln temperature evenly rose to 930 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, at the uniform velocity rise to 1210 ℃ again, then in 0.5-1 hour, be down to 1090 ℃, in 20 minutes, be down to fast 830 ℃ again, then in 1-1.5 hour, be down at a slow speed 630 ℃, finally naturally cool to again room temperature, burn till kiln discharge.
More accurate, near glaze firing sintering curve firing temperature is: in the time of 1150～1160 ℃, temperature rise rate is 100～110 ℃/h; In the time of 1190～1199 ℃, temperature rise rate is 70～95 ℃/h; In the time of 1200～1210 ℃, temperature rise rate is 20～40 ℃/h, and the rate of temperature fall in the time of 1200～1210 ℃ is 10～30 ℃/h, at the rate of temperature fall of 1180～1200 ℃, is 20～40 ℃/h.Near a kind of preferred glaze firing sintering curve firing temperature is: in the time of 1150～1160 ℃, temperature rise rate is 105～110 ℃/h; In the time of 1190～1199 ℃, temperature rise rate is 85～95 ℃/h; In the time of 1200～1210 ℃, temperature rise rate is 20～25 ℃/h, and the rate of temperature fall in the time of 1200～1210 ℃ is 10～18 ℃/h, at the rate of temperature fall of 1180～1200 ℃, is 20～30 ℃/h.
In glaze firing process, sintering curve determines that in the temperature of 5 thermopairs of clinkering zone 8#-12# effect preferably sintering curve has following 3 kinds by test of many times, and final embodiment adopts the third best sintering curve.
Beneficial effect of the present invention:
We adopt unique novel blank, glaze formula, rational calcining system, when being burnt till, engineering ceramics acid-fast alkali-proof container promote mullite to form, and improve the corundum phase in pottery, and base glaze can be combined closely, the prolongation of soaking time, be conducive to the growth of crystal, volume density is also larger, therefore to have acid-fast alkali-proof degree high for the engineering ceramics acid-fast alkali-proof vessel prepd of this technique, be not subject to especially medium pollution, physical strength is high, compactness is high, dimensional precision is high, water-intake rate is little, Heat stability is good, thermal expansivity is little, the features such as anti-leakage, and carcass is fine and close, glaze is bright and clean, free of pinholes, contracting glaze, the defects such as starved glaze, reduced fraction defective, improved production efficiency, and reduced the heatproof requirement to furnace equipment, its cost of manufacture is declined, its lead of engineering ceramics acid-fast alkali-proof container making by the method, quantity of cadmium release is less than respectively 0.1ppm and 0.01ppm, reach international the strictest standard regulation, can guarantee user health.This novel engineering pottery acid-fast alkali-proof container has good visual appearance and performance index, is a kind of ideal product of increasing economic efficiency.
(1) chemical stability is good
The chemical stability (%) of these goods acid-proof ceramics before and after simple calcining
Do not calcine 1200 degree
Acid fastness fastness to alkali acid fastness fastness to alkali
40 44 98.4 98.7
The raising of burning ceramics goods chemical stability is because of due to the strong crystallization of mullite and the formation of glassy phase.In ceramic batch, introduce the crystallization process that lithium feldspar contributes to mullite, thereby can improve acid fastness and the fastness to alkali of sample.Studies have shown that, have acid-fast alkali-proof degree high pottery contain minimum glassy phase and Fe
2o
3, and have maximum Al
2o
3more perfect mullite structure.The material that contains more ferric oxide is easy under the effect of sulfuric acid impaired, and this is because the cause of the defect structure mullite forming in calcination process.
(2) Heat stability is good
Thermostability determine material do not damage or without loss of intensity situation under stand the ability that sharply temperature becomes.The thermostability of acid-fast alkali-proof pottery determines its life-span aspect a lot, thus national Specification the thermostability index of resistance to chemical attack pottery.Many investigators think, the thermostability of acid-fast alkali-proof pottery depends primarily on its thermal expansivity.
The relation of the thermostability of acid-proof ceramics and thermal expansivity and oxide ratios: the main expanded by heating coefficient of thermostability and the Al of pottery
2o
3/ (Fe
2o
3+ R
2o) restriction of ratio.Lower and the Al of thermal expansivity
2o
3/ (Fe
2o
3+ R
2o) ratio is higher, and the thermal change number of times that ceramic stands is more.The application introduces the thermal expansivity that agalmatolite can reduce sample in ceramic batch, improves Al
2o
3content, Al
2o
3/ (Fe
2o
3+ R
2o) thermostability of ratio and sample.In a word, while using the material produce acid-proof ceramics that contains more ferric oxide, the thermostability of ceramic is with reduction and the Al of thermal expansivity
2o
3/ (Fe
2o
3+ R
2o) increase of ratio and improving.
(3) performance of watertightness is good
The string stress producing in clay material-lean agent system during calcining is very large on the formation impact of acid-proof ceramics infiltration structure, and this factor has impact in various degree to the watertightness of various clay material acid-proof ceramics.Meanwhile, infiltration structure also may be formed at early stage when dry (moulding and) of acid-proof ceramics production technique.What play an important role in the case, also has the composition of material, the form of clay particle and causes the anisotropy that clay material shrinks.The ceramic chamotte using in blank formulation in the present invention is calcined clay.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The raw material adopting in each example is as follows:
Kaolin: main small sheet, tubulose, the contour ridge of lamination shape bunch mineral (kaolinite, dickite, nakrite etc.) by 2 microns forms, and desirable chemical formula is: AL
2o
3-2SiO
2-2H
2o, often can accompany some mica groups, irony and some organic impuritys.
White clay: producing in the Cheng of Yixing, is hydromica class mineral, and ore is white ball clay, accompanies kaolin, quartz, and impure amount is low, and quality is purer, and plasticity-is better, generally as bonding clay.
Ceramic chamotte: calcined clay, the feature that there is environmental protection, reduces production costs.
Agalmatolite: the compact mass being formed by trickle flakey crystal, salic reaching more than 30%, matter is soft and be imbued with greasy feel, contains less crystal water, and shrinking percentage is little, and the coefficient of expansion is little, and has good thermally-stabilised and very little hygral expansion.
Lithium feldspar: conventionally in the form of sheets or fish scale-shaped aggregate produce, there is very strong flux effect, in glaze, quote lithium feldspar and can improve property of glaze, reduce thermal expansivity, improve heat-resisting acute degeneration, improve the microhardness of glaze and the chemical stability of glossiness and glaze.
Quartzy: be the Mineral resources that a kind of physical properties and chemical property are very stable, chemical formula is S
io
2, quartzy outward appearance is white in color or oyster white, translucent, and there are vitreous luster or greasy luster in surface, and Mohs' hardness is 7.
Boron frit: a kind of with the quartzy pottery frit made from borax, in Production of Ceramics, play flux effect.
Suzhou soil: be the kaolin that purity is very high, its chemical constitution very approaches kaolinic theoretical value, and look pure white, and refractoriness is high.
Quartzy: be the Mineral resources that a kind of physical properties and chemical property are very stable, chemical formula is S
io
2, quartzy outward appearance is white in color or oyster white, translucent, and there are vitreous luster or greasy luster in surface, and Mohs' hardness is 7.
Zirconium silicate: by forming after acidic rock elegance and talent, not only play milkiness effect in glaze, also improve whiteness and the wear resistance of glaze, and can increase anti-glaze be full of cracks and hardness of glaze surface.
Quilonum Retard: white powder, is heated to 1200 ℃ of decomposition.
Coffee pigment: be to belong to ferrochrome zinc spinel series ceramic pigment, play pigmentation in glaze.
The key technical indexes of the qualified project pottery acid-fast alkali-proof container of gained of the present invention is as follows:
Water-intake rate 0.3-0.5%
Bending strength is greater than 20MPa
Thermal expansivity (1000 ℃) 3.2*10
-61/ ℃
Thermostability 20-160 ℃ does not split for 3 times
Acid fastness is more than 99.2%
Fastness to alkali is more than 95.8%
Embodiment 1:
(1) preparation engineering pottery acid-fast alkali-proof container roll forming blank, by the weight percent proportioning of following raw materials according:
Kaolin 19%,
White clay 40%,
Ceramic chamotte 7%
Agalmatolite 18%,
Lithium feldspar 16%
(2) take each component raw material above, above-mentioned batching is pressed to material: the proportioning of ball: water=1:1.1:0.85, enter a ball milling, through 24 hours, go out the cylinder deironing of sieving, through 40kg pressure filter, carry out press filtration to water ratio 19-20% again, then carry out vacuum pugging 3 times, obtain the shaping blank of engineering ceramics acid-fast alkali-proof container.
(3) preparation engineering pottery acid-fast alkali-proof container glaze, by the weight percent proportioning of following raw materials according
Lithium feldspar 18.5% quartz 17.5%
Suzhou soil 13.1% boron frit 19.9%
Zirconium silicate 17.3% coffee pigment 8.7%
Zinc oxide 4.3% Quilonum Retard 0.7%
(4) take above-mentioned each component raw material, to above-mentioned batching by material: the proportioning of ball: water=1:1.3:1.3 enters a ball milling, through 48 hours ball millings, goes out cylinder and sieves and make engineering ceramics acid-fast alkali-proof container glaze.
(5) the engineering ceramics acid-fast alkali-proof container blank making is made to base substrate through roll forming and carry out biscuiting, biscuiting temperature is 1020 ℃.
(6) with the blank after biscuiting, adopt the method glazing of soaking glaze again, glaze firing after dry, adopt roller kiln oxydizing flame to burn till, firing temperature is 1200-1210 ℃, and sintering curve is: kiln temperature evenly rose to 930 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, at the uniform velocity rise to 1210 ℃ again, then in 0.5-1 hour, be down to 1090 ℃, then in 20 minutes, be down to fast 830 ℃, then in 1-1.5 hour, be down at a slow speed 630 ℃, finally naturally cool to again room temperature, burn till kiln discharge.By the third sintering curve 8#, be specifically occasionally that 1155 ℃, 9# are occasionally that 1198 ℃, 10# are occasionally that 1210 ℃ of 11# are occasionally that 1202 ℃, 12# are occasionally 1190 ℃ and burn till, firing period is 6.5 hours, burns till kiln discharge.After reaching qualified product standard, check becomes qualified product.
Embodiment 2:
(1) preparation engineering pottery acid-fast alkali-proof container roll forming blank, by the weight percent proportioning of following raw materials according:
Kaolin 18%,
White clay 38%,
Ceramic chamotte 8%
Agalmatolite 17%,
Lithium feldspar 19%
(2) take each component raw material above, above-mentioned batching is pressed to material: the proportioning of ball: water=1:1.1:0.85, enter a ball milling, through 24 hours, go out the cylinder deironing of sieving, through 40kg pressure filter, carry out press filtration to water ratio 19-20% again, then carry out vacuum pugging 3 times, obtain the shaping blank of engineering ceramics acid-fast alkali-proof container.
(3) preparation engineering pottery acid-fast alkali-proof container glaze, by the weight percent proportioning of following raw materials according
Lithium feldspar 18.6% quartz 16.8%
Suzhou soil 14.1% boron frit 20.1%
Zirconium silicate 16.8% coffee pigment 8.6%
Zinc oxide 4.4% Quilonum Retard 0.6%
(4) take above-mentioned each component raw material, to above-mentioned batching by material: the proportioning of ball: water=1:1.3:1.3 enters a ball milling, through 48 hours ball millings, goes out cylinder and sieves and make engineering ceramics acid-fast alkali-proof container glaze.
(5) the engineering ceramics acid-fast alkali-proof container blank making is made to base substrate through roll forming and carry out biscuiting, biscuiting temperature is 1020 ℃.
(6) with the blank after biscuiting, adopt the method glazing of soaking glaze again, glaze firing after dry, adopts roller kiln oxydizing flame to burn till, and firing temperature is 1200-1210 ℃.Sintering curve is: kiln temperature evenly rose to 930 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, at the uniform velocity rise to 1210 ℃ again, then in 0.5-1 hour, be down to 1090 ℃, in 20 minutes, be down to fast 830 ℃ again, then in 1-1.5 hour, be down at a slow speed 630 ℃, finally naturally cool to again room temperature, burn till kiln discharge.By the third sintering curve 8#, be specifically occasionally that 1155 ℃, 9# are occasionally that 1198 ℃, 10# are occasionally that 1210 ℃ of 11# are occasionally that 1202 ℃, 12# are occasionally 1190 ℃ and burn till, firing period is 6.5 hours, burns till kiln discharge.After reaching qualified product standard, check becomes qualified product.
Embodiment 3:
Preparation engineering pottery acid-fast alkali-proof container roll forming blank, by the weight percent proportioning of following raw materials according:
Kaolin 16%,
White clay 41%,
Ceramic chamotte 7%
Agalmatolite 19%,
Lithium feldspar 17%
(2) take each component raw material above, above-mentioned batching is pressed to material: the proportioning of ball: water=1:1.1:0.85, enter a ball milling, through 24 hours, go out the cylinder deironing of sieving, through 40kg pressure filter, carry out press filtration to water ratio 19-20% again, then carry out vacuum pugging 3 times, obtain the shaping blank of engineering ceramics acid-fast alkali-proof container.
(3) preparation engineering pottery acid-fast alkali-proof container glaze, by the weight percent proportioning of following raw materials according
Lithium feldspar 19.3% quartz 16.3%
Suzhou soil 12.5% boron frit 19.8%
Zirconium silicate 17.2% coffee pigment 8.9%
Zinc oxide 5.2% Quilonum Retard 0.8%
(4) take above-mentioned each component raw material, to above-mentioned batching by material: the proportioning of ball: water=1:1.3:1.3 enters a ball milling, through 48 hours ball millings, goes out cylinder and sieves and make engineering ceramics acid-fast alkali-proof container glaze.
(5) the engineering ceramics acid-fast alkali-proof container blank making is made to base substrate through roll forming and carry out biscuiting, biscuiting temperature is 1020 ℃.
(6) with the blank after biscuiting, adopt the method glazing of soaking glaze again, glaze firing after dry, adopts roller kiln oxydizing flame to burn till, and firing temperature is 1200-1210 ℃.Sintering curve is: kiln temperature evenly rose to 930 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, at the uniform velocity rise to 1210 ℃ again, then in 0.5-1 hour, be down to 1090 ℃, in 20 minutes, be down to fast 830 ℃ again, then in 1-1.5 hour, be down at a slow speed 630 ℃, finally naturally cool to again room temperature, burn till kiln discharge.By the third sintering curve 8#, be specifically occasionally that 1155 ℃, 9# are occasionally that 1198 ℃, 10# are occasionally that 1210 ℃ of 11# are occasionally that 1202 ℃, 12# are occasionally 1190 ℃ and burn till, firing period is 6.5 hours, burns till kiln discharge.After reaching qualified product standard, check becomes qualified product.
Claims (9)
1. a preparation method for engineering ceramics acid-fast alkali-proof container, is characterized in that comprising the steps:
(1) blank raw material: take kaolin, white clay, ceramic chamotte, agalmatolite and lithium feldspar prepares burden as blank raw material, consumption that the gross weight of blank raw material of take is 100% each raw material is kaolin 15～20%, white clay 35～42%, ceramic chamotte 5～8%, agalmatolite 15～20%, lithium feldspar 15～20%;
(2) shaping blank: after being mixed, blank raw material, abrading-ball and water carries out ball milling, then press filtration, then carry out vacuum pugging, obtain the shaping blank of engineering ceramics acid-fast alkali-proof container;
(3) glaze raw material: take lithium feldspar, quartz, Suzhou soil, boron frit, zirconium silicate, zinc oxide, Quilonum Retard and coffee pigment prepares burden as raw material;
(4) glaze: carry out ball milling after glaze raw material, abrading-ball and water are mixed, obtain engineering ceramics acid-fast alkali-proof container glaze;
(5) biscuiting: the shaping blank making is made to base substrate through roll forming and carry out biscuiting;
(6) glazing is burnt till: adopt the method for soaking glaze with glaze, to carry out glazing with engineering ceramics acid-fast alkali-proof container blank after biscuiting, glaze firing and get final product after doing.
2. preparation method according to claim 1, consumption that the gross weight that it is characterized in that take glaze raw material is 100% each glaze raw material is lithium feldspar 17.5～19.5%, quartzy 15.4～18.5%, Suzhou soil 12.3～16.4%, boron frit 17.9～22.3%, zirconium silicate 15.6～19.4%, zinc oxide 4.2～5.8%, Quilonum Retard 0.5～0.9%, coffee pigment 8.2～9.7%.
3. preparation method according to claim 1, is characterized in that in step (2), and the mixing quality of blank raw material, abrading-ball and water is than being 1:1.05～1.15:0.80～0.90.
4. preparation method according to claim 1, is characterized in that, in step (2), Ball-milling Time is more than 20 hours, the deironing of sieving after ball milling; Press filtration to the water ratio of blank is 19-20%; Described vacuum pugging carries out more than 2 times.
5. preparation method according to claim 1, is characterized in that in step (4), and the mixing quality of glaze raw material, abrading-ball and water is than being 1:1.25～1.35:1.25～1.35; Ball-milling Time is more than 40 hours, after ball milling, sieves.
6. preparation method according to claim 1, is characterized in that, in step (5), biscuiting temperature is 1015～1025 ℃, and firing period is 4.5～5 hours.
7. preparation method according to claim 1, is characterized in that in step (6), and glaze firing adopts roller kiln oxydizing flame to burn till, and firing temperature is 1200～1210 ℃, and firing period is 3～7 hours.
8. preparation method according to claim 1, it is characterized in that in step (6), the sintering curve of glaze firing is: kiln temperature evenly rose to 925 ℃～935 ℃ by room temperature in 1.5-2 hour, in 1.5-2 hour, rise to 1200～1210 ℃ again, then in 0.5-1 hour, be down to 1085～1095 ℃, in 20 minutes, be down to fast again 820 ℃～840 ℃, then in 1-1.5 hour, be down at a slow speed 620 ℃～640 ℃, finally naturally cool to again room temperature.
9. preparation method according to claim 7, is characterized in that, in step (6), near glaze firing sintering curve firing temperature is: in the time of 1150～1160 ℃, temperature rise rate is 100～110 ℃/h; In the time of 1190～1199 ℃, temperature rise rate is 70～95 ℃/h; In the time of 1200～1210 ℃, temperature rise rate is 20～40 ℃/h, and the rate of temperature fall in the time of 1200～1210 ℃ is 10～30 ℃/h, at the rate of temperature fall of 1180～1200 ℃, is 20～40 ℃/h.
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