CN111646819B - Reduction preparation process of environment-friendly ceramic glaze - Google Patents
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Abstract
The invention discloses a reduction preparation process of an environment-friendly ceramic glaze surface, which comprises the steps of preparing a base glaze raw material and a surface glaze raw material, applying a base glaze slip, applying a surface glaze slip and reducing and firing. According to the environment-friendly ceramic glaze disclosed by the invention, the modified kaolin, the vanadium oxide, the calcium oxide, the zirconium oxide, the barium carbonate and other raw materials are respectively added into the base glaze raw material and the surface glaze raw material to form the double-layer glaze so as to enhance the mechanical properties of the glaze, such as wear resistance, strength and the like, and meanwhile, the glaze after glazing can be promoted to be rapidly dried, the process time is shortened, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of ceramic glaze surfaces, in particular to a reduction preparation process of an environment-friendly ceramic glaze surface.
Background
With the development and progress of social science and technology, the requirements on environmental protection and safety are higher and higher. Compared with plastic products, the ceramic product has better wear resistance, easy cleaning property and longer service life on one hand, and has better texture, high-grade feeling, good glossiness and safe use on the other hand.
However, in general, the preparation process of the ceramic product is long and complicated, most ceramic products require twice kiln-sintering, and the glaze is generally low in wear resistance and easy to scratch, so that the service life and the application field of the ceramic are influenced; in addition, in the process of glazing the ceramic glaze surface, the drying time of the glaze material is too long, the processing time of the whole ceramic product is easily prolonged, and too much time is consumed.
Chinese patent CN105801177B discloses a light environment-friendly rock-like glaze ceramic and a preparation process thereof. The light environment-friendly rock-like glaze ceramic comprises a ceramic body, a ground glaze and a surface glaze: the ground glaze is prepared from feldspar, dolomite, kaolin, talc, iron oxide, manganese oxide, volcanic rock, calcium carbonate and sepiolite; the overglaze is prepared from feldspar, quartz, calcium carbonate, zinc oxide, dolomite, Muyu stone, Maifanitum, zirconium silicate, and ferric oxide. The rock glaze imitation ceramic provided by the invention has the advantages of high strength, good toughness, one-time firing, energy saving and environmental protection, but the time consumption is more due to natural drying of the ground glaze and the overglaze.
Chinese patent CN106430965B discloses a cherry blossom glaze and a preparation process thereof, wherein the cherry blossom glaze is prepared from the following raw materials: base glaze: potash feldspar, iron oxide, silica, talc, calcium carbonate; overglaze: albite, calcium carbonate, barium carbonate, zinc oxide, magnesium carbonate, kaolin, silica, talc; the preparation process comprises the following steps: wet ball milling the ground glaze raw material, sieving, mixing into glaze slurry, and applying the glaze slurry on a biscuit firing blank; wet ball milling the overglaze raw material, sieving, mixing into glaze slurry and applying the glaze slurry on the body of the overglaze; and transferring the blank body into a kiln, heating to 900 ℃, carrying out moderate reduction firing to 1000 ℃, carrying out high reduction firing to 1300 ℃, and cooling to room temperature along with the kiln to obtain the cherry blossom glazed porcelain. The cherry-blossom glazed porcelain prepared by the method has a dull and elegant blue glaze bottom, and the white glaze is decorated with a piece of peach color like a wash painting, is fresh and unique like blossom of cherry, is elegant and beautiful, has mellow charm, but has poor wear resistance and influences the service life.
Therefore, the invention provides a reduction preparation process of an environment-friendly ceramic glaze, aiming at the problems of poor wear resistance of the glaze, overlong drying time of the glaze, complex process, excessive time consumption and the like commonly existing in the prior ceramic product.
Disclosure of Invention
Aiming at the problems, the invention provides a reduction preparation process of an environment-friendly ceramic glaze surface.
The technical scheme adopted by the invention for solving the problems is as follows: a reduction preparation process of an environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a base glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the raw materials to prepare a base glaze slip with the baume degree of 35-50 baume degrees and a surface glaze slip with the baume degree of 60-75 baume degrees respectively for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.75 to 0.85; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 0.9 to 1.1;
step B, pretreating a ceramic blank prepared in advance, then applying the ground glaze slip prepared in the step A, naturally drying for 3-4 hours, and then performing microwave drying for 4-6 min to obtain a ceramic blank a;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 4-6 hours, and then performing microwave drying for 6-8 min to obtain a ceramic blank B;
and D, transferring the ceramic blank b obtained in the step C into a kiln, heating to 550-650 ℃ at the speed of 10-20 ℃/min under the reducing atmosphere, preserving heat for 20-25 min at the temperature of 550-650 ℃, heating to 950-1050 ℃ at the speed of 20-30 ℃/min, preserving heat for 15-20 min at the temperature of 950-1050 ℃, heating to 1250-1350 ℃ at the speed of 2.0-3.0 ℃/min, preserving heat for 10-15 min at the temperature of 1250-1350 ℃, opening the kiln, and cooling along with the kiln to obtain the ceramic.
Further, in the step A, the ground glaze comprises the following raw materials in parts by weight: 10.0 to 20.0 portions of albite, 5.5 to 7.5 portions of calcite, 10.5 to 13.0 portions of talcum, 8.0 to 12.0 portions of modified kaolin, 1.0 to 3.0 portions of vanadium oxide and 0.5 to 1.5 portions of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 10.0 to 16.0 portions of albite, 3.0 to 6.0 portions of potassium feldspar, 6.5 to 8.5 portions of talcum, 2.3 to 4.3 portions of ferric oxide, 0.5 to 0.8 portion of zirconium oxide, 2.4 to 4.4 portions of barium carbonate and 0.4 to 0.7 portion of calcium oxide.
Further, in the step A, the ground glaze comprises the following raw materials in parts by weight: 12.0 to 18.0 portions of albite, 6.0 to 7.0 portions of calcite, 11.0 to 12.0 portions of talcum, 9.0 to 11.0 portions of modified kaolin, 1.5 to 2.5 portions of vanadium oxide and 0.8 to 1.2 portions of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 12.0 to 14.0 portions of albite, 4.0 to 5.0 portions of potassium feldspar, 7.0 to 8.0 portions of talcum, 2.8 to 3.8 portions of ferric oxide, 0.6 to 0.7 portion of zirconium oxide, 2.9 to 3.9 portions of barium carbonate and 0.5 to 0.6 portion of calcium oxide.
Further, in the step A, the ground glaze raw material and the surface glaze raw material are both powder, and the average particle size of the powder is 1.0-3.0 μm.
Further, in the step B, the pretreatment is to dry the ceramic blank body for 120-360 min at the temperature of 280-360 ℃.
Further, in the step B, the water content of the ceramic blank body a is 3.5-4.0%.
Further, in the step C, the water content of the ceramic blank b is 3.0-3.5%.
Further, in the step C, the total glazing thickness of the ceramic blank body b is 0.6 mm-1.0 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2.
further, in step D, in a reducing atmosphere, CO and H2The volume ratio of (A) to (B) is 1.0-1.2: 20.
the invention has the advantages that:
(1) according to the environment-friendly ceramic glaze disclosed by the invention, the modified kaolin, the vanadium oxide, the calcium oxide, the zirconium oxide, the barium carbonate and other raw materials are respectively added into the base glaze raw material and the surface glaze raw material to form a double-layer glaze so as to enhance the mechanical properties of the glaze, such as wear resistance, strength and the like, and meanwhile, the glaze after glazing can be promoted to be rapidly dried, the process time is shortened, and the efficiency is improved;
(2) the reduction preparation process of the environment-friendly ceramic glaze combines natural drying and microwave drying processes in the glaze drying process, can obviously shorten the glaze drying time, saves time and reduces time consumption; in the firing process, the temperature is raised and maintained in stages, so that the firing efficiency can be improved, and the yield can be improved;
(3) the reduction preparation process of the environment-friendly ceramic glaze disclosed by the invention is energy-saving and environment-friendly, the production cost is lower, the process is simple, and the obtained ceramic product can be widely applied to multiple fields of daily use, buildings, artworks and the like and is suitable for wide popularization.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Reduction preparation process of environment-friendly ceramic glaze
The environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a base glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the base glaze raw material and the surface glaze raw material respectively to prepare a base glaze slip with 35 baume degrees and a surface glaze slip with 60 baume degrees for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.75; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 0.9; the ground glaze comprises the following raw materials in parts by weight: 10.0kg of albite, 5.5kg of calcite, 10.5kg of talcum, 8.0kg of modified kaolin, 1.0kg of vanadium oxide and 0.5kg of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 10.0kg of albite, 3.0kg of potassium feldspar, 6.5kg of talc, 2.3kg of iron oxide, 0.5kg of zirconium oxide, 2.4kg of barium carbonate and 0.4kg of calcium oxide; both the ground glaze raw material and the surface glaze raw material are powder, and the average particle size of the powder is 1.0 mu m;
step B, drying the ceramic blank prepared in advance for 120min at the temperature of 280 ℃, then applying the ground glaze slip prepared in the step A, naturally drying for 3 hours, and then performing microwave drying for 4min to obtain a ceramic blank a with the water content of 3.5%;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 4 hours, and then performing microwave drying for 6min to obtain a ceramic blank B with the water content of 3.0%; wherein the total glazing thickness of the ceramic blank body b is 0.6 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2;
d, transferring the ceramic body b obtained in the step C into a kiln, and adding CO and H2Is 1.0: heating to 550 ℃ at the speed of 10 ℃/min under the reducing atmosphere of 20 ℃, preserving heat for 20min at the temperature of 550 ℃, heating to 950 ℃ at the speed of 20 ℃/min, preserving heat for 15min at the temperature of 950 ℃, heating to 1250 ℃ at the speed of 2.0 ℃/min, preserving heat for 10min at the temperature of 1250 ℃, opening the furnace, and cooling along with the furnace to obtain the catalyst.
The environment-friendly ceramic prepared by the embodiment has smooth glaze surface, smoothness, fine texture, no surface defect, crystal clear glaze surface, mild glaze color and beautiful appearance; the hardness is 772 Hv; the abrasion resistance grade is 5.5.
Example 2
Reduction preparation process of environment-friendly ceramic glaze
The environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a ground glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the ground glaze raw material and the surface glaze raw material respectively to prepare a ground glaze slip with a baume degree of 50 and a surface glaze slip with a baume degree of 75 for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.85; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 1.1; the ground glaze comprises the following raw materials in parts by weight: 20.0kg of albite, 7.5kg of calcite, 13.0kg of talcum, 12.0kg of modified kaolin, 3.0kg of vanadium oxide and 1.5kg of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 16.0kg of albite, 6.0kg of potassium feldspar, 8.5kg of talc, 4.3kg of iron oxide, 0.8kg of zirconium oxide, 4.4kg of barium carbonate and 0.7kg of calcium oxide; both the ground glaze raw material and the surface glaze raw material are powder, and the average grain diameter of the powder is 3.0 mu m;
step B, drying the ceramic blank prepared in advance for 360min at the temperature of 360 ℃, then applying the ground glaze slip prepared in the step A, naturally drying for 4 hours, and then performing microwave drying for 6min to obtain a ceramic blank a with the water content of 4.0%;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 6 hours, and then performing microwave drying for 8min to obtain a ceramic blank B with the water content of 3.5%; wherein the total glazing thickness of the ceramic blank body b is 1.0 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2;
d, transferring the ceramic body b obtained in the step C into a kiln, and adding CO and H2Is 1.2: heating to 650 ℃ at the speed of 20 ℃/min under the reducing atmosphere of 20 ℃, preserving heat for 25min at the temperature of 650 ℃, heating to 1050 ℃ at the speed of 30 ℃/min, preserving heat for 20min at the temperature of 1050 ℃, heating to 1350 ℃ at the speed of 3.0 ℃ min, preserving heat for 15min at the temperature of 1350 ℃, opening the furnace, and cooling along with the furnace to obtain the catalyst.
The environment-friendly ceramic prepared by the embodiment has smooth glaze surface, smoothness, fine texture, no surface defect, crystal clear glaze surface, mild glaze color and beautiful appearance; the hardness is 768 Hv; the abrasion resistance grade is 5.5.
Example 3
Reduction preparation process of environment-friendly ceramic glaze
The environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a ground glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the ground glaze raw material and the surface glaze raw material respectively to prepare a ground glaze slip with a baume degree of 40 and a surface glaze slip with a baume degree of 65 for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.78; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 1.1; the ground glaze comprises the following raw materials in parts by weight: 12.0kg of albite, 6.0kg of calcite, 11.0kg of talcum, 9.0kg of modified kaolin, 1.5kg of vanadium oxide and 0.8kg of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 12.0kg of albite, 4.0kg of potassium feldspar, 7.0kg of talc, 2.8kg of iron oxide, 0.6kg of zirconium oxide, 2.9kg of barium carbonate and 0.5kg of calcium oxide; both the base glaze raw material and the surface glaze raw material are powder, and the average particle size of the powder is 1.5 mu m;
step B, drying the ceramic blank prepared in advance for 180min at the temperature of 300 ℃, then applying the ground glaze slip prepared in the step A, naturally drying for 4 hours, and then performing microwave drying for 6min to obtain a ceramic blank a with the water content of 3.6%;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 4.5 hours, and then performing microwave drying for 8min to obtain a ceramic blank B with the water content of 3.1%; wherein the total glazing thickness of the ceramic blank body b is 0.7 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2;
d, transferring the ceramic body b obtained in the step C into a kiln, and adding CO and H2Is 1.2: heating to 580 ℃ at the speed of 12 ℃/min under the reducing atmosphere of 20 ℃, preserving heat for 21min at the temperature of 580 ℃, heating to 980 ℃ at the speed of 22 ℃/min, preserving heat for 16min at the temperature of 980 ℃, heating to 1280 ℃ at the speed of 3.0 ℃ for 11min at the temperature of 1280 ℃, opening the furnace, and cooling along with the furnace to obtain the catalyst.
The environment-friendly ceramic prepared by the embodiment has smooth glaze surface, smoothness, fine texture, no surface defect, crystal clear glaze surface, mild glaze color and beautiful appearance; the hardness is 770 Hv; the abrasion resistance grade is 5.5.
Example 4
Reduction preparation process of environment-friendly ceramic glaze
The environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a ground glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the ground glaze raw material and the surface glaze raw material respectively to prepare a ground glaze slip with a baume degree of 45 and a surface glaze slip with a baume degree of 73 for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.83; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 0.9; the ground glaze comprises the following raw materials in parts by weight: 18.0kg of albite, 7.0kg of calcite, 12.0kg of talcum, 11.0kg of modified kaolin, 2.5kg of vanadium oxide and 1.2kg of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 14.0kg of albite, 5.0kg of potassium feldspar, 8.0kg of talc, 3.8kg of iron oxide, 0.7kg of zirconium oxide, 3.9kg of barium carbonate and 0.6kg of calcium oxide; both the base glaze raw material and the surface glaze raw material are powder, and the average particle size of the powder is 2.5 mu m;
step B, drying the ceramic blank prepared in advance for 300min at the temperature of 340 ℃, then applying the ground glaze slip prepared in the step A, naturally drying for 3 hours, and then performing microwave drying for 4min to obtain a ceramic blank a with the water content of 3.9%;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 5.5 hours, and then performing microwave drying for 6min to obtain a ceramic blank B with the water content of 3.4%; wherein the total glazing thickness of the ceramic blank body b is 0.9 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2;
d, transferring the ceramic body b obtained in the step C into a kiln, and adding CO and H2Is 1.0: heating to 630 ℃ at the speed of 18 ℃/min under the reducing atmosphere of 20 ℃, preserving heat for 24min at the temperature of 630 ℃, heating to 1030 ℃ at the speed of 28 ℃/min, preserving heat for 19min at the temperature of 1030 ℃, heating to 1320 ℃ at the speed of 2.0 ℃/min, preserving heat for 14min at the temperature of 1320 ℃, opening the furnace, and cooling along with the furnace to obtain the catalyst.
The environment-friendly ceramic prepared by the embodiment has smooth glaze surface, smoothness, fine texture, no surface defect, crystal clear glaze surface, mild glaze color and beautiful appearance; the hardness is 759 Hv; the abrasion resistance grade is 5.5.
Example 5
Reduction preparation process of environment-friendly ceramic glaze
The environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process comprises the following steps:
step A, weighing a ground glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the ground glaze raw material and the surface glaze raw material respectively to prepare a ground glaze slip with a baume degree of 43 and a surface glaze slip with a baume degree of 68 for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.80; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 1.0; the ground glaze comprises the following raw materials in parts by weight: 15.0kg of albite, 6.5kg of calcite, 11.5kg of talcum, 10.0kg of modified kaolin, 2.0kg of vanadium oxide and 1.0kg of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 13.0kg of albite, 4.5kg of potassium feldspar, 7.5kg of talc, 3.3kg of iron oxide, 0.6kg of zirconium oxide, 3.4kg of barium carbonate and 0.5kg of calcium oxide; both the ground glaze raw material and the surface glaze raw material are powder, and the average particle size of the powder is 2.0 mu m;
step B, drying the ceramic blank prepared in advance for 240min at the temperature of 320 ℃, then applying the ground glaze slip prepared in the step A, naturally drying for 3.5 hours, and then performing microwave drying for 5min to obtain a ceramic blank a with the water content of 3.8%;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 5 hours, and then performing microwave drying for 7min to obtain a ceramic blank B with the water content of 3.3%; wherein the total glazing thickness of the ceramic blank body b is 0.8 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2;
d, transferring the ceramic body b obtained in the step C into a kiln, and adding CO and H2Is 1.1: heating to 600 deg.C at a rate of 15 deg.C/min under a reducing atmosphere of 20, maintaining the temperature at 600 deg.C for 23min, heating to 1000 deg.C at a rate of 25 deg.C/min, maintaining the temperature at 1000 deg.C for 18min, heating to 1300 deg.C at a rate of 2.5 deg.C for 13min, opening the furnace, and maintaining the temperature at 1300 deg.C for 13minAnd (5) cooling the furnace to obtain the product.
The environment-friendly ceramic prepared by the embodiment has smooth glaze surface, smoothness, fine texture, no surface defect, crystal clear glaze surface, mild glaze color and beautiful appearance; the hardness is 765 Hv; the abrasion resistance grade is 5.5.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A reduction preparation process of an environment-friendly ceramic glaze comprises a ground glaze and a cover glaze; the reduction preparation process is characterized by comprising the following steps of:
step A, weighing a base glaze raw material and a surface glaze raw material according to parts by weight respectively, and ball-milling the raw materials to prepare a base glaze slip with the baume degree of 35-50 baume degrees and a surface glaze slip with the baume degree of 60-75 baume degrees respectively for later use; wherein, the mass ratio of the materials, the balls and the water in the process of ball milling of the ground glaze slip is 1: 2.2: 0.75 to 0.85; the mass ratio of the materials, the balls and the water in the process of ball milling of the overglaze material is 1: 2.3: 0.9 to 1.1;
step B, pretreating a ceramic blank prepared in advance, then applying the ground glaze slip prepared in the step A, naturally drying for 3-4 hours, and then performing microwave drying for 4-6 min to obtain a ceramic blank a;
step C, continuously applying the overglaze slip prepared in the step A on the ceramic blank a obtained in the step B, naturally drying for 4-6 hours, and then performing microwave drying for 6-8 min to obtain a ceramic blank B;
step D, transferring the ceramic blank b obtained in the step C into a kiln, heating to 550-650 ℃ at a speed of 10-20 ℃/min under a reducing atmosphere, preserving heat at 550-650 ℃ for 20-25 min, heating to 950-1050 ℃ at a speed of 20-30 ℃/min, preserving heat at 950-1050 ℃ for 15-20 min, heating to 1250-1350 ℃ at a speed of 2.0-3.0 ℃/min, preserving heat at 1250-1350 ℃ for 10-15 min, opening the kiln, and cooling along with the kiln to obtain the ceramic blank;
in the step A, the ground glaze comprises the following raw materials in parts by weight: 10.0 to 20.0 portions of albite, 5.5 to 7.5 portions of calcite, 10.5 to 13.0 portions of talcum, 8.0 to 12.0 portions of modified kaolin, 1.0 to 3.0 portions of vanadium oxide and 0.5 to 1.5 portions of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 10.0 to 16.0 portions of albite, 3.0 to 6.0 portions of potassium feldspar, 6.5 to 8.5 portions of talcum, 2.3 to 4.3 portions of ferric oxide, 0.5 to 0.8 portion of zirconium oxide, 2.4 to 4.4 portions of barium carbonate and 0.4 to 0.7 portion of calcium oxide;
in the step B, the pretreatment is to dry the ceramic blank body for 120-360 min at the temperature of 280-360 ℃.
2. The reduction preparation process according to claim 1, wherein in the step a, the ground glaze raw material and the weight parts thereof are as follows: 12.0 to 18.0 portions of albite, 6.0 to 7.0 portions of calcite, 11.0 to 12.0 portions of talcum, 9.0 to 11.0 portions of modified kaolin, 1.5 to 2.5 portions of vanadium oxide and 0.8 to 1.2 portions of calcium oxide; the overglaze comprises the following raw materials in parts by weight: 12.0 to 14.0 portions of albite, 4.0 to 5.0 portions of potassium feldspar, 7.0 to 8.0 portions of talcum, 2.8 to 3.8 portions of ferric oxide, 0.6 to 0.7 portion of zirconium oxide, 2.9 to 3.9 portions of barium carbonate and 0.5 to 0.6 portion of calcium oxide.
3. The reduction preparation process according to claim 1, wherein in the step a, the ground glaze raw material and the cover glaze raw material are both powder, and the average particle size of the powder is 1.0 μm to 3.0 μm.
4. The reduction preparation process according to claim 1, wherein in the step B, the water content of the ceramic body a is 3.5-4.0%.
5. The reduction preparation process according to claim 1, wherein in the step C, the water content of the ceramic body b is 3.0% to 3.5%.
6. The reduction preparation process according to claim 1, wherein in step C, the total glazing thickness of the ceramic body b is 0.6mm to 1.0 mm; wherein, the ratio of the thickness of the overglaze to the thickness of the ground glaze is 1: 1.2.
7. the reductive preparation process of claim 1, wherein in step D, CO and H are present in the reducing atmosphere2The volume ratio of (A) to (B) is 1.0-1.2: 20.
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| JP2011121850A (en) * | 2009-12-14 | 2011-06-23 | Noritake Co Ltd | Method for producing white ceramic and glaze suitable therefor |
| CN106430965A (en) * | 2016-08-31 | 2017-02-22 | 德化县新君诚陶瓷工艺有限公司 | Cherry blossom glaze and preparation technology thereof |
| CN108911719A (en) * | 2018-09-25 | 2018-11-30 | 湖南福美来电子陶瓷有限公司 | A kind of composite ceramics |
| CN110194650A (en) * | 2019-06-20 | 2019-09-03 | 德化东华陶瓷有限公司 | A kind of shockproof environmentally friendly ceramic of high buffering and preparation method thereof |
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| JP2011121850A (en) * | 2009-12-14 | 2011-06-23 | Noritake Co Ltd | Method for producing white ceramic and glaze suitable therefor |
| CN106430965A (en) * | 2016-08-31 | 2017-02-22 | 德化县新君诚陶瓷工艺有限公司 | Cherry blossom glaze and preparation technology thereof |
| CN108911719A (en) * | 2018-09-25 | 2018-11-30 | 湖南福美来电子陶瓷有限公司 | A kind of composite ceramics |
| CN110194650A (en) * | 2019-06-20 | 2019-09-03 | 德化东华陶瓷有限公司 | A kind of shockproof environmentally friendly ceramic of high buffering and preparation method thereof |
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