CN108863329B - Split white porcelain and preparation method thereof - Google Patents
Split white porcelain and preparation method thereof Download PDFInfo
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- CN108863329B CN108863329B CN201810869316.2A CN201810869316A CN108863329B CN 108863329 B CN108863329 B CN 108863329B CN 201810869316 A CN201810869316 A CN 201810869316A CN 108863329 B CN108863329 B CN 108863329B
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- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000002994 raw material Substances 0.000 claims abstract description 64
- 239000010453 quartz Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010459 dolomite Substances 0.000 claims abstract description 15
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 13
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000454 talc Substances 0.000 claims abstract description 13
- 229910052623 talc Inorganic materials 0.000 claims abstract description 13
- 239000000440 bentonite Substances 0.000 claims abstract description 9
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004579 marble Substances 0.000 claims abstract description 9
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims abstract description 7
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 claims abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000292 calcium oxide Substances 0.000 claims abstract description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011435 rock Substances 0.000 claims abstract description 4
- 230000032683 aging Effects 0.000 claims description 18
- 238000000498 ball milling Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000001354 calcination Methods 0.000 claims description 14
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 12
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 9
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- 229910052656 albite Inorganic materials 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 6
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000010433 feldspar Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005245 sintering Methods 0.000 abstract description 5
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 2
- 206010011376 Crepitations Diseases 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 12
- 238000007873 sieving Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 235000012222 talc Nutrition 0.000 description 10
- 238000009966 trimming Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 6
- 229920002558 Curdlan Polymers 0.000 description 3
- 239000001879 Curdlan Substances 0.000 description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 3
- 229940078035 curdlan Drugs 0.000 description 3
- 235000019316 curdlan Nutrition 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000010975 amethyst Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052654 sanidine Inorganic materials 0.000 description 1
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
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Abstract
The split white porcelain comprises a blank body and a glaze material, wherein the glaze material comprises an inner layer glaze and an outer layer glaze, and the inner layer glaze comprises the following raw materials: the glaze comprises the following raw materials of celestial rock, quartz, permease, talc, gneiss, rhyolite, glaze ash, calcium carbonate, barium carbonate, alumina, zinc oxide and zirconium silicate, wherein the outer glaze comprises the following raw materials: potassium feldspar, quartz, bentonite, marble, dolomite, glaze, alumina, calcium oxide, cerium oxide, the frit includes inner glaze and outer glaze, and the inner glaze has relatively higher coefficient of expansion for the body, in the high temperature sintering process, the interior has the face can produce great tensile stress, make the interior glaze form many crackles, obtain the decorative effect of splitting, the outer glaze has relatively less coefficient of expansion for the body, difficult crackle that produces in the sintering process, the hardness of porcelain has been improved, and difficult mar appears.
Description
Technical Field
The invention belongs to the field of ceramic preparation, and particularly relates to a preparation method of an open-piece white ceramic medium.
Background
The crackle glaze is a decoration art of the porcelain, the glaze of the porcelain is distributed with a plurality of small cracks, the cracks are sparse, dense, thick, thin, long, short, curved, straight and similar to cracking, crab claw or ice crack, and the cracking of the glaze originally is a defect in firing.
The reason for the split glaze is that the thermal expansion coefficient of the glaze is larger than the thermocouple expansion coefficient of the blank body, and the glaze generates larger tensile stress in the firing process, so that a plurality of cracks are formed on the glaze.
The split glaze has good decorative effect, but because the thermal expansion coefficient of the glaze is larger than that of the blank, and the glaze has larger tensile stress, the hardness of the glaze is lower, scratches are easy to appear, and the decorative effect is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide split white porcelain with high hardness and less possibility of generating scratches, and also aims to provide a method for preparing the split white porcelain.
The invention adopts the following technical scheme:
the split white porcelain comprises a blank body and a glaze, wherein the glaze comprises an inner layer glaze and an outer layer glaze, and the inner layer glaze comprises the following raw materials in parts by weight: 30-40 parts of celestial rock, 8-12 parts of quartz, 10-15 parts of permeant feldspar, 25-30 parts of talc, 20-25 parts of gneiss, 15-18 parts of rhyolite, 10-12 parts of glaze ash, 8-10 parts of calcium carbonate, 5-10 parts of barium carbonate, 5-10 parts of alumina, 0.5-1 part of zinc oxide and 1-2 parts of zirconium silicate, wherein the outer glaze comprises the following raw materials in parts by weight: 10-15 parts of potassium feldspar, 15-20 parts of quartz, 8-12 parts of bentonite, 15-18 parts of marble, 10-12 parts of dolomite, 15-20 parts of glaze, 3-5 parts of aluminum oxide, 1-2 parts of calcium oxide and 0.3-0.5 part of cerium oxide.
Further, the blank body comprises the following raw materials in parts by weight: 20-25 parts of albite, 15-20 parts of kaolin, 20-30 parts of quartz, 15-20 parts of breccia, 15-18 parts of rhyolite, 10-15 parts of talc, 8-12 parts of dolomite, 3-5 parts of magnesium oxide, 2-3 parts of potassium oxide, 0.3-0.6 part of lanthanum oxide, 1-2 parts of barium carbonate and 0.2-0.5 part of cerium oxide.
Furthermore, the shrinkage rate of the inner layer glaze is larger than that of the blank body, and the shrinkage rate of the blank body is larger than that of the outer layer glaze.
Furthermore, the shrinkage rate of the inner layer glaze is 15-18%, the shrinkage rate of the outer layer glaze is 5-8%, and the shrinkage rate of the blank body is 10-12%.
Further, the thickness of the inner glaze layer is 1.3-1.5 mm.
Further, the thickness of the outer glaze layer is 0.8-1 mm.
The preparation method of the split white porcelain comprises the following steps:
(1) preparing a blank body: crushing the blank raw materials, performing wet ball milling and ageing to prepare a rough blank, and then biscuiting at the temperature of 550-600 ℃ for 2-2.5h to obtain a blank;
(2) preparing inner layer glaze: crushing the inner glaze raw material, and preparing the inner glaze after wet ball milling and ageing;
(3) preparing outer layer glaze: crushing the outer glaze raw material, and carrying out wet ball milling and ageing to obtain the outer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, calcining for 1.8-2.2h at 1260-.
Further, the step (4) comprises: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1260-1330 ℃ at 1.5-2 ℃/min, calcining for 1.8-2.2h for one time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 800-850 ℃ at 2-2.5 ℃/min, preserving heat for 50-60min, heating to 1050-1180 ℃ at 2-3 ℃/min, and calcining for 1.5-1.8h for the second time to obtain the split white porcelain.
Furthermore, the glazing mode of the inner layer glaze is glaze spraying.
Further, the glazing mode of the outer layer glaze is dipping glaze.
As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: the glaze comprises inner glaze and outer glaze, the inner glaze has a relatively high expansion coefficient relative to a blank body, the inner glaze can generate large tensile stress in a high-temperature sintering process, so that a plurality of cracks are formed on the inner glaze, the split decorative effect is obtained, the outer glaze has a relatively small expansion coefficient relative to the blank body, cracks are not easily generated in the sintering process, the hardness of the porcelain is improved, and scratches are not easily generated, the raw materials of the outer glaze comprise amethyst, dolomite, marble and bentonite, the amethyst and the dolomite enable the outer glaze to have good transparency, so that the cracks formed on the inner glaze can not be shielded, the marble and the bentonite can reduce the expansion coefficient of the outer glaze, and the sintering temperature is reduced.
Detailed Description
The invention is further described below by means of specific embodiments.
An open-piece white porcelain comprises a blank body and a glaze, wherein the glaze comprises an inner layer glaze and an outer layer glaze.
The inner layer glaze comprises the following raw materials in parts by weight: 30-40 parts of curdlan, 8-12 parts of quartz, 10-15 parts of sanidine, 25-30 parts of talc, 20-25 parts of gneiss, 15-18 parts of rhyolite, 10-12 parts of glaze ash, 8-10 parts of calcium carbonate, 5-10 parts of barium carbonate, 5-10 parts of alumina, 0.5-1 part of zinc oxide and 1-2 parts of zirconium silicate.
The outer layer glaze comprises the following raw materials in parts by weight: 10-15 parts of potassium feldspar, 15-20 parts of quartz, 8-12 parts of bentonite, 15-18 parts of marble, 10-12 parts of dolomite, 15-20 parts of glaze, 3-5 parts of aluminum oxide, 1-2 parts of calcium oxide and 0.3-0.5 part of cerium oxide.
The blank body comprises the following raw materials in parts by weight: 20-25 parts of albite, 15-20 parts of kaolin, 20-30 parts of quartz, 15-20 parts of breccia, 15-18 parts of rhyolite, 10-15 parts of talc, 8-12 parts of dolomite, 3-5 parts of magnesium oxide, 2-3 parts of potassium oxide, 0.3-0.6 part of lanthanum oxide, 1-2 parts of barium carbonate and 0.2-0.5 part of cerium oxide.
Specifically, the shrinkage rate of the inner layer glaze is greater than that of the blank body, the shrinkage rate of the blank body is greater than that of the outer layer glaze, further, the shrinkage rate of the inner layer glaze is 15-18%, the shrinkage rate of the outer layer glaze is 5-8%, and the shrinkage rate of the blank body is 10-12%.
The thickness of the inner glaze layer is 1.3-1.5 mm.
The thickness of the outer glaze layer is 0.8-1 mm.
A preparation method of split white porcelain comprises the following steps:
(1) preparing a blank body: crushing the blank raw material, sieving the crushed blank raw material by a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at the ratio of 1:0.8-1.2:0.8-1 for 18-20h, aging for 36-48h to prepare a rough blank, rough repairing, fine repairing and fine repairing, and biscuiting for 2-2.5h in a kiln at the temperature of 550 ℃ and 600 ℃ to obtain a blank;
(2) preparing inner layer glaze: crushing the inner layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials in parts by weight: ball: wet ball milling with water at a ratio of 1:0.8-1.2:1.2-1.5 for 32-36h, and aging for 3-5 days to obtain inner layer glaze;
(3) preparing outer layer glaze: crushing the outer layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at a ratio of 1:0.8-1.2:1.2-1.5 for 32-36h, and aging for 3-5 days to obtain outer layer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1260-1330 ℃ at 1.5-2 ℃/min, calcining for 1.8-2.2h for one time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 800-850 ℃ at 2-2.5 ℃/min, preserving heat for 50-60min, heating to 1050-1180 ℃ at 2-3 ℃/min, and calcining for 1.5-1.8h for the second time to obtain the split white porcelain.
Specifically, the glazing mode of the inner layer glaze is glaze spraying, and the glazing mode of the outer layer glaze is glaze dipping.
Example 1
An open-piece white porcelain comprises a blank body and a glaze, wherein the glaze comprises an inner layer glaze and an outer layer glaze.
The inner layer glaze comprises the following raw materials in parts by weight: 30 parts of curdlan, 12 parts of quartz, 10 parts of permeant feldspar, 30 parts of talcum, 20 parts of gneiss, 18 parts of rhyolite, 12 parts of glaze ash, 8 parts of calcium carbonate, 10 parts of barium carbonate, 5 parts of aluminum oxide, 1 part of zinc oxide and 2 parts of zirconium silicate.
The outer layer glaze comprises the following raw materials in parts by weight: 10 parts of potassium feldspar, 20 parts of quartz, 12 parts of bentonite, 15 parts of marble, 10 parts of dolomite, 20 parts of glaze, 3 parts of aluminum oxide, 2 parts of calcium oxide and 0.3 part of cerium oxide.
The blank body comprises the following raw materials in parts by weight: 20 parts of albite, 20 parts of kaolin, 30 parts of quartz, 15 parts of breccia, 18 parts of rhyolite, 10 parts of talc, 12 parts of dolomite, 3 parts of magnesium oxide, 2 parts of potassium oxide, 0.6 part of lanthanum oxide, 1 part of barium carbonate and 0.5 part of cerium oxide.
Specifically, the shrinkage rate of the inner layer glaze is greater than that of the blank body, the shrinkage rate of the blank body is greater than that of the outer layer glaze, further, the shrinkage rate of the inner layer glaze is 15%, the shrinkage rate of the outer layer glaze is 5%, and the shrinkage rate of the blank body is 10%.
The thickness of the inner glaze layer is 1.3 mm.
The thickness of the outer glaze layer is 0.8 mm.
A preparation method of split white porcelain comprises the following steps:
(1) preparing a blank body: crushing the blank raw material, sieving the crushed blank raw material by a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling for 18h with water at a ratio of 1:0.8:1, aging for 48h to prepare a rough blank, rough trimming, fine trimming and fine trimming, and then biscuiting for 2h in a kiln at a temperature of 600 ℃ to obtain a blank;
(2) preparing inner layer glaze: crushing the inner layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials in parts by weight: ball: wet ball milling for 36h with water at a ratio of 1:0.8:1.5, and aging for 3 days to obtain inner layer glaze;
(3) preparing outer layer glaze: crushing the outer layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling for 36h with water at a ratio of 1:0.8:1.5, and aging for 3 days to obtain outer layer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1260 ℃ at the speed of 1.5 ℃/min, calcining for 2.2h for one time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 800 ℃ at the speed of 2 ℃/min, keeping the temperature for 60min, heating to 1180 ℃ at the speed of 3 ℃/min, and calcining for 1.5h for the second time to obtain the split white porcelain.
Specifically, the glazing mode of the inner layer glaze is glaze spraying, and the glazing mode of the outer layer glaze is glaze dipping.
The prepared split white porcelain is tested to obtain the following performance parameters:
bending strength: 390 MPa;
fracture toughness: 14 MPa/m;
vickers hardness: 52 GPa.
The existing split white porcelain is tested to obtain the following performance parameters:
bending strength: 300 MPa;
fracture toughness: 9 MPa/m;
vickers hardness: 38 GPa.
According to the test data, the split white porcelain prepared by the method has higher hardness and strength than those of the split white porcelain in the prior art, is not easy to scratch, and has good decorative effect.
Example 2
An open-piece white porcelain comprises a blank body and a glaze, wherein the glaze comprises an inner layer glaze and an outer layer glaze.
The inner layer glaze comprises the following raw materials in parts by weight: 40 parts of celestial rock, 8 parts of quartz, 15 parts of permeant feldspar, 25 parts of talcum, 25 parts of gneiss, 15 parts of rhyolite, 10 parts of glaze ash, 10 parts of calcium carbonate, 5 parts of barium carbonate, 10 parts of aluminum oxide, 0.5 part of zinc oxide and 1 part of zirconium silicate.
The outer layer glaze comprises the following raw materials in parts by weight: 15 parts of potassium feldspar, 15 parts of quartz, 8 parts of bentonite, 18 parts of marble, 12 parts of dolomite, 15 parts of glaze, 5 parts of aluminum oxide, 1 part of calcium oxide and 0.5 part of cerium oxide.
The blank body comprises the following raw materials in parts by weight: 25 parts of albite, 15 parts of kaolin, 20 parts of quartz, 20 parts of breccia, 15 parts of rhyolite, 15 parts of talc, 8 parts of dolomite, 5 parts of magnesium oxide, 3 parts of potassium oxide, 0.3 part of lanthanum oxide, 2 parts of barium carbonate and 0.2 part of cerium oxide.
Specifically, the shrinkage rate of the inner layer glaze is greater than that of the blank body, the shrinkage rate of the blank body is greater than that of the outer layer glaze, further, the shrinkage rate of the inner layer glaze is 18%, the shrinkage rate of the outer layer glaze is 8%, and the shrinkage rate of the blank body is 12%.
The thickness of the inner glaze layer is 1.5 mm.
The thickness of the outer glaze layer is 1 mm.
A preparation method of split white porcelain comprises the following steps:
(1) preparing a blank body: crushing the blank raw material, sieving the crushed blank raw material by a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at the ratio of 1:1.2:0.8 for 20h, aging for 36h to prepare a rough blank, rough trimming, fine trimming and fine trimming, and biscuiting in a kiln at the temperature of 550 ℃ for 2.5h to obtain a blank;
(2) preparing inner layer glaze: crushing the inner layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials in parts by weight: ball: wet ball milling with water at a ratio of 1:1.2:1.2 for 32h, and aging for 5 days to obtain inner layer glaze;
(3) preparing outer layer glaze: crushing the outer layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at a ratio of 1:1.2:1.2 for 32h, and aging for 5 days to obtain outer layer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1330 ℃ at the speed of 2 ℃/min, calcining for 1.8h for the first time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 850 ℃ at the speed of 2.5 ℃/min, keeping the temperature for 50min, heating to 1050 ℃ at the speed of 2 ℃/min, and calcining for the second time for 1.8h to obtain the split white porcelain.
Specifically, the glazing mode of the inner layer glaze is glaze spraying, and the glazing mode of the outer layer glaze is glaze dipping.
The prepared split white porcelain is tested to obtain the following performance parameters:
bending strength: 398 MPa;
fracture toughness: 15 MPa/m;
vickers hardness: 54 GPa.
The existing split white porcelain is tested to obtain the following performance parameters:
bending strength: 300 MPa;
fracture toughness: 9 MPa/m;
vickers hardness: 38 GPa.
According to the test data, the split white porcelain prepared by the method has higher hardness and strength than those of the split white porcelain in the prior art, is not easy to scratch, and has good decorative effect.
Example 3
An open-piece white porcelain comprises a blank body and a glaze, wherein the glaze comprises an inner layer glaze and an outer layer glaze.
The inner layer glaze comprises the following raw materials in parts by weight: 35 parts of curdlan, 10 parts of quartz, 12 parts of permeant feldspar, 28 parts of talc, 22 parts of gneiss, 16 parts of rhyolite, 11 parts of glaze ash, 9 parts of calcium carbonate, 5-10 parts of barium carbonate, 8 parts of aluminum oxide, 8 parts of zinc oxide and 1.6 parts of zirconium silicate.
The outer layer glaze comprises the following raw materials in parts by weight: 12 parts of potassium feldspar, 18 parts of quartz, 10 parts of bentonite, 16 parts of marble, 11 parts of dolomite, 18 parts of glaze, 4 parts of aluminum oxide, 1.5 parts of calcium oxide and 0.4 part of cerium oxide.
The blank body comprises the following raw materials in parts by weight: 22 parts of albite, 18 parts of kaolin, 25 parts of quartz, 18 parts of breccia, 16 parts of rhyolite, 12 parts of talc, 10 parts of dolomite, 4 parts of magnesium oxide, 2.5 parts of potassium oxide, 0.5 part of lanthanum oxide, 1.5 parts of barium carbonate and 0.4 part of cerium oxide.
Specifically, the shrinkage rate of the inner layer glaze is greater than that of the blank body, the shrinkage rate of the blank body is greater than that of the outer layer glaze, further, the shrinkage rate of the inner layer glaze is 16%, the shrinkage rate of the outer layer glaze is 7%, and the shrinkage rate of the blank body is 11%.
The thickness of the inner glaze layer is 1.4 mm.
The thickness of the outer glaze layer is 0.9 mm.
A preparation method of split white porcelain comprises the following steps:
(1) preparing a blank body: crushing the blank raw material, sieving the crushed blank raw material by a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at a ratio of 1:1:0.9 for 19h, aging for 42h to prepare a rough blank, rough trimming, fine trimming and fine trimming, and then biscuiting in a kiln at 580 ℃ for 2.2h to obtain a blank;
(2) preparing inner layer glaze: crushing the inner layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials in parts by weight: ball: wet ball milling with water at a ratio of 1:1:1.4 for 34h, and aging for 4 days to obtain inner layer glaze;
(3) preparing outer layer glaze: crushing the outer layer glaze raw material, sieving the crushed raw material with a 200-mesh sieve, and mixing the raw materials: ball: wet ball milling with water at a ratio of 1:1:1.4 for 34h, and aging for 4 days to obtain outer layer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1310 ℃ at the speed of 1.8 ℃/min, calcining for 2 hours for the first time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 820 ℃ at the speed of 2.3 ℃/min, keeping the temperature for 55 minutes, heating to 1130 ℃ at the speed of 2.5 ℃/min, and calcining for 1.6 hours for the second time to obtain the split white porcelain.
Specifically, the glazing mode of the inner layer glaze is glaze spraying, and the glazing mode of the outer layer glaze is glaze dipping.
The prepared split white porcelain is tested to obtain the following performance parameters:
bending strength: 408 MPa;
fracture toughness: 16 MPa/m;
vickers hardness: 55 GPa.
The existing split white porcelain is tested to obtain the following performance parameters:
bending strength: 300 MPa;
fracture toughness: 9 MPa/m;
vickers hardness: 38 GPa.
According to the test data, the split white porcelain prepared by the method has higher hardness and strength than those of the split white porcelain in the prior art, is not easy to scratch, and has good decorative effect.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents and modifications within the scope of the description.
Claims (6)
1. The utility model provides an open white porcelain, includes body and frit, its characterized in that: the glaze comprises an inner layer glaze and an outer layer glaze, wherein the inner layer glaze comprises the following raw materials in parts by weight: 30-40 parts of celestial rock, 8-12 parts of quartz, 10-15 parts of permeant feldspar, 25-30 parts of talc, 20-25 parts of gneiss, 15-18 parts of rhyolite, 10-12 parts of glaze ash, 8-10 parts of calcium carbonate, 5-10 parts of barium carbonate, 5-10 parts of alumina, 0.5-1 part of zinc oxide and 1-2 parts of zirconium silicate, wherein the outer glaze comprises the following raw materials in parts by weight: 10-15 parts of potassium feldspar, 15-20 parts of quartz, 8-12 parts of bentonite, 15-18 parts of marble, 10-12 parts of dolomite, 15-20 parts of glaze, 3-5 parts of aluminum oxide, 1-2 parts of calcium oxide and 0.3-0.5 part of cerium oxide;
the blank body comprises the following raw materials in parts by weight: 20-25 parts of albite, 15-20 parts of kaolin, 20-30 parts of quartz, 15-20 parts of breccia, 15-18 parts of rhyolite, 10-15 parts of talc, 8-12 parts of dolomite, 3-5 parts of magnesium oxide, 2-3 parts of potassium oxide, 0.3-0.6 part of lanthanum oxide, 1-2 parts of barium carbonate and 0.2-0.5 part of cerium oxide;
the shrinkage rate of the inner layer glaze is greater than that of the blank body, and the shrinkage rate of the blank body is greater than that of the outer layer glaze;
the preparation method comprises the following steps:
(1) preparing a blank body: crushing the blank raw materials, performing wet ball milling and ageing to prepare a rough blank, and then biscuiting at the temperature of 550-600 ℃ for 2-2.5h to obtain a blank;
(2) preparing inner layer glaze: crushing the inner glaze raw material, and preparing the inner glaze after wet ball milling and ageing;
(3) preparing outer layer glaze: crushing the outer glaze raw material, and carrying out wet ball milling and ageing to obtain the outer glaze;
(4) glazing: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, calcining for 1.8-2.2h at 1260-;
the step (4) comprises the following steps: applying inner layer glaze on the surface of the blank, placing the blank in a kiln, heating to 1260-1330 ℃ at 1.5-2 ℃/min, calcining for 1.8-2.2h for one time, cooling to room temperature, applying outer layer glaze on the surface of the outer layer glaze, heating to 800-850 ℃ at 2-2.5 ℃/min, preserving heat for 50-60min, heating to 1050-1180 ℃ at 2-3 ℃/min, and calcining for 1.5-1.8h for the second time to obtain the split white porcelain.
2. The split white porcelain according to claim 1, wherein: the shrinkage rate of the inner layer glaze is 15-18%, the shrinkage rate of the outer layer glaze is 5-8%, and the shrinkage rate of the blank body is 10-12%.
3. The split white porcelain according to claim 1, wherein: the thickness of the inner layer glaze is 1.3-1.5 mm.
4. The split white porcelain according to claim 1, wherein: the thickness of the outer layer glaze is 0.8-1 mm.
5. The split white porcelain according to claim 1, wherein: the glazing mode of the inner layer glaze is glaze spraying.
6. The split white porcelain according to claim 1, wherein: the glazing mode of the outer layer glaze is dipping glaze.
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| CN110330323B (en) * | 2019-05-24 | 2021-10-19 | 福建省泉州龙鹏集团有限公司 | Preparation method of fish maw white ice crackle jun porcelain |
| CN110256062B (en) * | 2019-07-12 | 2021-07-30 | 湖南华联瓷业股份有限公司 | Medium-temperature daily double-sided crack glaze ceramic and preparation method thereof |
| CN111646821B (en) * | 2020-07-07 | 2023-12-19 | 江西服装学院 | Convex carving ceramic and coloring manufacturing method thereof |
| CN111792843B (en) * | 2020-07-29 | 2022-04-29 | 中国轻工业陶瓷研究所 | Langhong ceramic glaze capable of contacting with food and preparation method thereof |
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