CN115784777B - Process for manufacturing kiln transformation brick - Google Patents
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- CN115784777B CN115784777B CN202211437298.3A CN202211437298A CN115784777B CN 115784777 B CN115784777 B CN 115784777B CN 202211437298 A CN202211437298 A CN 202211437298A CN 115784777 B CN115784777 B CN 115784777B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention aims to provide a manufacturing process of a kiln-change brick which is beneficial to natural color development of brick bodies, obvious in kiln-change effect and rich in colors. The invention comprises a green body manufacturing process and a green body glazing process which are sequentially carried out, and is characterized in that the green body glazing process comprises the following steps: A. proportioning ground enamel; B. proportioning surface glaze; C. and (5) heating and ageing: pouring the ground glaze slurry and the surface glaze slurry into two material cylinders respectively, heating to 50-60 ℃ and preserving heat; D. uniformly spraying the ground enamel on the green body by using a spray gun, wherein the spraying times are two times, drying is carried out after each spraying, the spraying thickness of the first spraying is 0.2-0.3 mm, and the spraying thickness of the second spraying is 0.3-0.4 mm; E. spraying overglaze: uniformly spraying overglaze on the green body by using a spray gun, wherein the spraying times are one time, and then drying, wherein the spraying thickness is 0.4-0.6mm; F. firing a blank: and (3) sintering the green body in a roller kiln under high-temperature oxidizing atmosphere, wherein the sintering temperature is 1200-1400 ℃ and the sintering period is 40-60 minutes. The invention is applied to the technical field of building ceramic production.
Description
Technical Field
The invention is applied to the technical field of building ceramic production, and particularly relates to a kiln transformation brick manufacturing process.
Background
The ceramic tile is made of refractory metal oxide and semi-metal oxide through grinding, mixing, pressing, glazing and sintering, and is one kind of acid and alkali resistant ceramic or stone building or decorating material. At present, ceramic tiles on the market are very abundant in variety and are divided into glazed tiles and unglazed tiles according to glazing, wherein the glazed tiles are tiles which are fired after the surface of a tile body is sprayed with glaze, and the ceramic is more attractive due to the addition of the glaze, but the traditional glazed tiles have the defects of unnatural color, single color, unobvious transmutation effect and the like.
The prior patent document with publication number CN111792845B proposes a preparation method of a glazed tile, which comprises the following steps: A. adding the flexible glaze raw materials into a ball mill according to the proportion for ball milling to obtain flexible glaze; B. adding the surface glaze raw materials into a ball mill according to the proportion for ball milling to obtain surface glaze; C. applying the overglaze cloth in the step B on the upper surface of the ceramic tile blank body to form an overglaze layer; D. applying the flexible glaze cloth in the step A to the bottom surface and/or the side surface of the ceramic tile blank in the step C to form a flexible glaze layer; E. and D, drying and firing the ceramic tile blank body in the step D to form the glazed tile. However, after the glazing operation in step C, the overglaze layer is not dried but the flexible glaze layer is directly applied, so that the overglaze layer and the glaze slurry of the flexible glaze layer are easily mixed, color difference and unnatural color are generated after firing, and in the glazing process in step C and step D, if the overglaze layer or the flexible glaze layer is applied in a relatively thin manner, the color of the glaze surface is uneven and not pure. If a manufacturing process of the kiln transformation brick which is beneficial to natural color development of the brick body, obvious in kiln transformation effect and rich in color can be designed, the problems can be well solved.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a manufacturing process of the kiln-change brick which is beneficial to natural color development of the brick body, obvious in kiln-change effect and rich in colors.
The technical scheme adopted by the invention is as follows: the invention comprises a green body manufacturing process and a green body glazing process which are sequentially carried out, and is characterized in that the green body glazing process comprises the following steps:
A. the ratio of the ground coat: adding the ground first flux, the first crystallization agent and the first coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form a base glaze slurry, wherein the weight percentage of water is controlled to be 25% -30%;
B. the ratio of the overglaze is as follows: adding the ground second flux, the second crystallization agent and the second coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form surface glaze slurry, wherein the weight percentage of water is controlled to be 20% -25%;
C. and (5) heating and ageing: pouring the ground glaze slurry and the surface glaze slurry into two material cylinders respectively, heating to 50-60 ℃ for heat preservation, and sealing and storing for 35-45 hours;
D. uniformly spraying the ground enamel on the green body by using a spray gun, wherein the spraying times are two times, drying is carried out after each spraying, the spraying thickness of the first spraying is 0.2-0.3 mm, and the spraying thickness of the second spraying is 0.3-0.4 mm;
E. spraying overglaze: uniformly spraying overglaze on the green body by using a spray gun, wherein the spraying times are one time, and then drying, wherein the spraying thickness is 0.4-0.6mm;
F. firing a blank: and (3) sintering the green body in a roller kiln under high-temperature oxidizing atmosphere, wherein the sintering temperature is 1200-1400 ℃ and the sintering period is 40-60 minutes.
Further, the first flux comprises 20-35 parts of potassium feldspar and 20-30 parts of calcite, the first crystallizing agent comprises 15-25 parts of quartz and 20-35 parts of zinc oxide, and the first coloring agent comprises 10-20 parts of titanium dioxide, 1-5 parts of nickel oxide, 1-2 parts of copper oxide and 2-8 parts of black mud; the second flux comprises, by mass, 25-40 parts of potassium feldspar, 20-30 parts of calcite and 5-15 parts of talcum, the second crystallizing agent comprises 10-15 parts of quartz and 5-15 parts of zinc oxide, and the second coloring agent comprises 10-20 parts of titanium dioxide, 1-3 parts of nickel oxide, 0.5-1 part of copper oxide and 2-8 parts of black mud.
Further, the first flux comprises, by mass, 50-60 parts of potassium feldspar, 5-15 parts of potassium sand, 10-20 parts of burned earth and 1-5 parts of talcum, the first crystallizing agent comprises 5-10 parts of quartz and 1-3 parts of zinc oxide, and the first coloring agent comprises 5-15 parts of black mud and 0.2-0.8 part of cobalt black; the second flux comprises 30-40 parts of potassium feldspar and 10-20 parts of calcite, the second crystallizing agent comprises 10-20 parts of quartz, 20-25 parts of zinc oxide, 0.5-1.5 parts of bovine bone powder and 2-8 parts of crystallization aid, and the second coloring agent comprises 5-15 parts of titanium dioxide, 2-8 parts of black mud and 5-15 parts of rutile.
Further, the first flux comprises 15-30 parts of high Wen Jia feldspar and 15-30 parts of calcite, the first crystallizing agent comprises 20-30 parts of calcined zinc oxide and 10-20 parts of quartz, and the first coloring agent comprises 10-15 parts of titanium dioxide and 2-8 parts of black mud; the second flux comprises, by mass, 30-40 parts of potassium feldspar, 10-20 parts of calcite and 2-8 parts of G2 frit, the second crystallizing agent comprises 10-20 parts of quartz and 20-25 parts of zinc oxide, and the second coloring agent comprises 5-15 parts of titanium dioxide, 2-6 parts of black mud and 10-20 parts of rutile.
Further, the specific gravity of the primer slip is 1.7-1.8g/ml, the flow rate of the primer is 17-19s, and the spraying amount of the primer is 2-4g/cm < 2 >.
Further, the specific gravity of the surface glaze slip is 1.4-1.6/ml, the flow rate of the surface glaze is 17-19s, and the spraying amount of the surface glaze is 1-2g/cm < 2 >.
Further, the specific gravity of the primer slurry is 1.72g/ml, the flow rate of the primer is 18s, and the spraying amount of the primer is 3g/cm < 2 >.
Further, the specific gravity of the surface glaze slip is 1.5/ml, the flow rate of the surface glaze is 18s, and the spraying amount of the surface glaze is 1.2g/cm2.
The beneficial effects of the invention are as follows: the ground glaze slip and the surface glaze slip are formed by mixing and adding water into the flux, the crystallizing agent and the coloring agent with different proportions, wherein the flux is used for effectively controlling the high-temperature viscosity of the melt during firing, so that the problem of flowing glaze or sticking slag is avoided, the crystallizing agent is used for generating a large number of tiny crystals of the melt under the firing condition, and the coloring agent is used for enabling the glaze to show a color effect, so that the kiln transformation effect is more obvious. In addition, the base glaze is sprayed on the green body twice, the green body is dried after each spraying, then the surface glaze is sprayed once again, and then the green body is dried again, so that the thickness of the whole glaze layer is relatively large, the drying operation after each spraying can avoid mixing of the base glaze slurry or the surface glaze slurry, and the color of the whole glaze layer is ensured to be more uniform, pure and natural.
Detailed Description
Example 1
In this embodiment, the present invention includes a green body manufacturing process and a green body glazing process that are sequentially performed, and is characterized in that the green body glazing process includes the steps of:
A. the ratio of the ground coat: adding the ground first flux, the first crystallization agent and the first coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form a base glaze slurry, wherein the weight percentage of water is controlled to be 25% -30%;
B. the ratio of the overglaze is as follows: adding the ground second flux, the second crystallization agent and the second coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form surface glaze slurry, wherein the weight percentage of water is controlled to be 20% -25%;
C. and (5) heating and ageing: pouring the ground glaze slurry and the surface glaze slurry into two material cylinders respectively, heating to 50-60 ℃ for heat preservation, and sealing and storing for 35-45 hours;
D. uniformly spraying the ground enamel on the green body by using a spray gun, wherein the spraying times are two times, drying is carried out after each spraying, the spraying thickness of the first spraying is 0.2-0.3 mm, and the spraying thickness of the second spraying is 0.3-0.4 mm;
E. spraying overglaze: uniformly spraying overglaze on the green body by using a spray gun, wherein the spraying times are one time, and then drying, wherein the spraying thickness is 0.4-0.6mm;
F. firing a blank: and (3) sintering the green body in a roller kiln under high-temperature oxidizing atmosphere, wherein the sintering temperature is 1200-1400 ℃ and the sintering period is 40-60 minutes.
In the embodiment, the first flux comprises 20-35 parts of potassium feldspar and 20-30 parts of calcite, the first crystallizing agent comprises 15-25 parts of quartz and 20-35 parts of zinc oxide, and the first coloring agent comprises 10-20 parts of titanium dioxide, 1-5 parts of nickel oxide, 1-2 parts of copper oxide and 2-8 parts of black mud; the second flux comprises, by mass, 25-40 parts of potassium feldspar, 20-30 parts of calcite and 5-15 parts of talcum, the second crystallizing agent comprises 10-15 parts of quartz and 5-15 parts of zinc oxide, and the second coloring agent comprises 10-20 parts of titanium dioxide, 1-3 parts of nickel oxide, 0.5-1 part of copper oxide and 2-8 parts of black mud.
In this example, as shown in table 1, the primer composition in the present invention:
table 1 base coat formulation composition (parts)
| Raw materials | Potassium feldspar | Calcite | Titanium white powder | Quartz | Black mud | Zinc oxide | Nickel oxide | Copper oxide |
| Proportioning of | 28 | 25 | 16 | 20 | 5 | 28 | 3 | 1.5 |
In this example, as shown in Table 2, the overglaze composition in the present invention:
surface 2 overglaze formulation (parts)
| Raw materials | Potassium feldspar | Calcite | Talc | Titanium white powder | Quartz | Black mud | Zinc oxide | Nickel oxide | Copper oxide |
| Proportioning of | 33 | 25 | 10 | 16 | 12 | 5 | 8 | 1.8 | 0.8 |
In this example, the product glaze exhibits a yellowish brown kiln color effect. Wherein the ground glaze is a zinc crystal glaze, and the ground glaze is a calcium titanium crystal glaze. When the copper oxide colorant is added, the glaze surface can show blue effect under the action of oxidizing atmosphere, and nickel oxide is added to enable the glaze surface to have a certain yellowish-brown effect, and the two effects are combined to form a dark yellowish-brown effect. Meanwhile, when the glaze layer is thicker, the kiln transformation effect is obvious. When the glaze layer is thinner, the color is not pure and uniform.
Example two
In this embodiment, the difference from the first embodiment is that: the first flux comprises, by mass, 50-60 parts of potassium feldspar, 5-15 parts of potassium sand, 10-20 parts of burned soil and 1-5 parts of talcum, the first crystallizing agent comprises 5-10 parts of quartz and 1-3 parts of zinc oxide, and the first coloring agent comprises 5-15 parts of black mud and 0.2-0.8 part of cobalt black; the second flux comprises 30-40 parts of potassium feldspar and 10-20 parts of calcite, the second crystallizing agent comprises 10-20 parts of quartz, 20-25 parts of zinc oxide, 0.5-1.5 parts of bovine bone powder and 2-8 parts of crystallization aid, and the second coloring agent comprises 5-15 parts of titanium dioxide, 2-8 parts of black mud and 5-15 parts of rutile.
In this example, as shown in table 3, the primer composition in the present invention:
table 3 ground coat formulation composition (parts)
| Raw materials | Potassium feldspar | Potassium sand | Soil burning | Quartz | Talc | Zinc oxide | Black mud | Cobalt black |
| Proportioning of | 53 | 10 | 15 | 7 | 3 | 2 | 10 | 0.5 |
In this example, as shown in Table 4, the overglaze composition in the present invention:
table 4 overglaze formulation (parts)
| Raw materials | Potassium feldspar | Titanium white powder | Quartz | Zinc oxide | Calcite | Black mud | Rutile type | Bovine bone powder | Crystallization aid |
| Proportioning of | 34 | 11 | 14 | 23 | 15 | 4 | 10 | 1 | 5 |
In the embodiment, the glaze of the product shows a grey color effect, and the kiln transformation effect is obvious. Wherein the ground glaze is a glossy glaze, and the surface glaze is a zinc-titanium crystalline glaze. The experimental procedure has found that the addition of rutile to the overglaze produces a more complex color reaction; the main component of rutile is titanium dioxide, and the titanium dioxide can combine with other crystal nucleus to generate microcrystal, so that the kiln transformation effect is more wonderful.
Example III
In this embodiment, the difference from the first embodiment is that: the first flux comprises 15-30 parts of high Wen Jia feldspar and 15-30 parts of calcite, the first crystallizing agent comprises 20-30 parts of calcined zinc oxide and 10-20 parts of quartz, and the first coloring agent comprises 10-15 parts of titanium dioxide and 2-8 parts of black mud; the second flux comprises, by mass, 30-40 parts of potassium feldspar, 10-20 parts of calcite and 2-8 parts of G2 frit, the second crystallizing agent comprises 10-20 parts of quartz and 20-25 parts of zinc oxide, and the second coloring agent comprises 5-15 parts of titanium dioxide, 2-6 parts of black mud and 10-20 parts of rutile.
In this example, as shown in table 5, the primer composition in the present invention:
table 5 ground coat formulation composition (parts)
| Raw materials | Gao Wenjia feldspar | Quartz | Calcined zinc oxide | Titanium white powder | Calcite | Black mud |
| Proportioning of | 23 | 16 | 25 | 13 | 20 | 5 |
In this example, as shown in Table 6, the overglaze composition in the present invention:
surface 6 overglaze formulation (parts)
| Raw materials | Potassium feldspar | Titanium white powder | Quartz | Zinc oxide | Calcite | Black mud | Rutile type | G2 frit |
| Proportioning of | 34 | 11 | 14 | 23 | 15 | 4 | 15 | 5 |
In the embodiment, the glaze of the product shows a milky color effect and a obvious transmutation effect. Wherein the ground glaze is a zinc-titanium crystal glaze, and the surface glaze is a zinc-titanium crystal glaze. The zinc and titanium crystallization agent generates crystallization in the high-temperature melt, and the melt generates a large number of tiny crystals due to the effect of firing conditions. In the test, the addition of a proper amount of G2 frit can reduce the high-temperature viscosity of the glaze melt, enhance the diffusion effect and facilitate the directional arrangement of particles and the growth of crystals. The potassium feldspar and quartz are added in the test, so that the high-temperature viscosity of the melt can be effectively controlled, and the defects of glaze flow, slag adhesion and the like are avoided. The rutile has a promoting effect on the titanium-zinc crystal glaze, and the addition of the rutile in the formula is beneficial to the generation of zinc-titanium crystals.
The products fired in the above three examples all have a kiln transformation effect on the glaze. The three ceramic tiles with the transmutation effect are combined together, and a brand-new transmutation series ceramic tile can be obtained through layering paving.
The above embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, improvements, etc. within the spirit and principles of the present invention should be within the scope of the present invention.
Claims (5)
1. The kiln transformation brick manufacturing process comprises a green body manufacturing process and a green body glazing process which are sequentially carried out, and is characterized in that the green body glazing process comprises the following steps:
A. the ratio of the ground coat: adding the ground first flux, the first crystallization agent and the first coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form a base glaze slurry, wherein the weight percentage of water is controlled to be 25% -30%;
B. the ratio of the overglaze is as follows: adding the ground second flux, the second crystallization agent and the second coloring agent into a trough according to a set proportion, mixing, adding water, and stirring to form surface glaze slurry, wherein the weight percentage of water is controlled to be 20% -25%;
C. and (5) heating and ageing: pouring the ground glaze slurry and the surface glaze slurry into two material cylinders respectively, heating to 50-60 ℃ for heat preservation, and sealing and storing for 35-45 hours;
D. uniformly spraying the ground enamel on the green body by using a spray gun, wherein the spraying times are two times, drying is carried out after each spraying, the spraying thickness of the first spraying is 0.2-0.3 mm, and the spraying thickness of the second spraying is 0.3-0.4 mm;
E. spraying overglaze: uniformly spraying overglaze on the green body by using a spray gun, wherein the spraying times are one time, and then drying, wherein the spraying thickness is 0.4-0.6mm;
F. firing a blank: the green body is sent into a roller kiln under high-temperature oxidizing atmosphere to be sintered, the sintering temperature is 1200-1400 ℃, and the sintering period is 40-60 minutes;
the first flux comprises 15-30 parts of high Wen Jia feldspar and 15-30 parts of calcite, the first crystallizing agent comprises 20-30 parts of calcined zinc oxide and 10-20 parts of quartz, and the first coloring agent comprises 10-15 parts of titanium dioxide and 2-8 parts of black mud; the second flux comprises, by mass, 30-40 parts of potassium feldspar, 10-20 parts of calcite and 2-8 parts of G2 frit, the second crystallizing agent comprises 10-20 parts of quartz and 20-25 parts of zinc oxide, and the second coloring agent comprises 5-15 parts of titanium dioxide, 2-6 parts of black mud and 10-20 parts of rutile.
2. A process for manufacturing a transmutation brick according to claim 1, wherein: the specific gravity of the primer slip is 1.7-1.8g/ml, the flow rate of the primer is 17-19s, and the spraying amount of the primer is 2-4g/cm 2 。
3. A process for manufacturing a transmutation brick according to claim 1, wherein: the specific gravity of the surface glaze slurry is 1.4-1.6/ml, the flow rate of the surface glaze is 17-19s, and the spraying amount of the surface glaze is 1-2g/cm 2 。
4. A process for manufacturing a transmutation brick according to claim 2, wherein: the specific gravity of the primer slip is 1.72g/ml, the flow rate of the primer is 18s, and the spraying amount of the primer is 3g/cm 2 。
5. A process for manufacturing a transmutation brick according to claim 3, wherein: the specific gravity of the surface glaze slurry is 1.5/ml, the flow rate of the surface glaze is 18s, and the spraying amount of the surface glaze is 1.2g/cm 2 。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478483A (en) * | 2014-11-18 | 2015-04-01 | 福建省德化协发光洋陶器有限公司 | Double-layer transmutation glaze and preparation method thereof |
| WO2017185195A1 (en) * | 2016-04-25 | 2017-11-02 | 广东宏宇新型材料有限公司 | Resource-saving glazed tile with pearlescent and colour-variable effect on surface and preparation method therefor |
| CN109455934A (en) * | 2018-12-19 | 2019-03-12 | 蒙娜丽莎集团股份有限公司 | Color decorative effect Ceramic Tiles of a kind of stream and preparation method thereof |
| CN110342820A (en) * | 2019-08-06 | 2019-10-18 | 江苏高淳陶瓷股份有限公司 | A kind of manufacturing method of copper system furnace transmutation glaze |
| CN112266271A (en) * | 2020-12-25 | 2021-01-26 | 佛山市玉矶材料科技有限公司 | Roller kiln low-temperature sintered colorful halo crystal glaze and preparation method thereof |
| CN112573945A (en) * | 2020-12-29 | 2021-03-30 | 珠海市斗门区旭日陶瓷有限公司 | High-gloss glazed tile and production process thereof |
-
2022
- 2022-11-16 CN CN202211437298.3A patent/CN115784777B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478483A (en) * | 2014-11-18 | 2015-04-01 | 福建省德化协发光洋陶器有限公司 | Double-layer transmutation glaze and preparation method thereof |
| WO2017185195A1 (en) * | 2016-04-25 | 2017-11-02 | 广东宏宇新型材料有限公司 | Resource-saving glazed tile with pearlescent and colour-variable effect on surface and preparation method therefor |
| CN109455934A (en) * | 2018-12-19 | 2019-03-12 | 蒙娜丽莎集团股份有限公司 | Color decorative effect Ceramic Tiles of a kind of stream and preparation method thereof |
| CN110342820A (en) * | 2019-08-06 | 2019-10-18 | 江苏高淳陶瓷股份有限公司 | A kind of manufacturing method of copper system furnace transmutation glaze |
| CN112266271A (en) * | 2020-12-25 | 2021-01-26 | 佛山市玉矶材料科技有限公司 | Roller kiln low-temperature sintered colorful halo crystal glaze and preparation method thereof |
| CN112573945A (en) * | 2020-12-29 | 2021-03-30 | 珠海市斗门区旭日陶瓷有限公司 | High-gloss glazed tile and production process thereof |
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