CN114890821A - Gradient color glaze ceramic and preparation method thereof - Google Patents
Gradient color glaze ceramic and preparation method thereof Download PDFInfo
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- CN114890821A CN114890821A CN202210510306.6A CN202210510306A CN114890821A CN 114890821 A CN114890821 A CN 114890821A CN 202210510306 A CN202210510306 A CN 202210510306A CN 114890821 A CN114890821 A CN 114890821A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention relates to the field of ceramics, in particular to a gradual color glaze ceramic and a preparation method thereof, which are characterized in that: the surface of the blank body is sequentially covered with fluorescent ground coat, middle glaze and surface glaze from inside to outside, the ground coat presents fluorescent green, the middle glaze presents yellow, the surface glaze presents green, the whole glaze presents a yellow-green gradual change effect with the fluorescent effect, and in the process of glazing each layer, because of the difference of upper and lower temperature difference, the fluidity difference is caused, a ring-shaped glaze strand which is locally accumulated appears on the surface of the glaze, the glaze strand is formed on the surface of each layer of glazing, the glaze strands of each layer are mutually stacked, the glaze of each layer of glaze is mutually blended after the glaze is fired, the yellow-green is alternately presented, and the blank has unique aesthetic feeling.
Description
Technical Field
The invention relates to the field of ceramics, in particular to a gradual color glaze ceramic and a preparation method thereof.
Background
The colored glaze is characterized in that certain metal oxide is added into the glaze, and the glaze can show certain inherent color after being roasted, so the colored glaze is called as the colored glaze. Different metal oxides are added into the glaze material as coloring agents, and the glaze material can present glaze with different colors and become colored glaze when being fired at a certain temperature and air temperature. The traditional colored glaze has the following components: green glaze with iron as a colorant; red glaze with copper as coloring agent; blue glaze with cobalt as coloring agent. Historically, many times have been outstanding representatives of colored glazes, such as the blue and jun reds of the Song Dynasty, the celadon of the Ming Dynasty, the Lanzhou red, the Wujin glaze, the tea dust glaze of the Qing Dynasty, and the like. The difference between the colored glaze and the common colored glaze lies in the special firing process and formula of the colored glaze. The glaze surface of the colored glaze is calcined at a high temperature of more than 1250 ℃ to show the unique charm of the colored glaze, such as light oil, rainbow clouds and veins cloud waterfall. The colored glaze is colorful and various. The traditional colorful glaze process comprises the following steps: through going up multilayer frit in proper order, through the different frit that distributes in different positions on the body, form the present of multiple color, although traditional colorful glaze technology can present multiple color, the presentation mode is comparatively single, can't present the colour blending effect, in view of this, the present case produces from this.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems by a gradient color enamel strand ceramic and a method for making the same.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: gradual change color glaze strand pottery which characterized in that: the surface of the blank body is covered with a fluorescent ground coat, a middle coat and a cover coat in sequence from inside to outside, and the fluorescent ground coat comprises the following raw materials in parts by weight: 30-40 parts of quartz, 20-25 parts of anhydrous boric acid, 35-40 parts of kyanite, 10-12 parts of zirconite, 10-12 parts of lithium carbonate and 15-18 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 15-20 parts of zirconium dioxide, 5-8 parts of ammonium metavanadate, 20-25 parts of quartz, 10-12 parts of sodium chloride, 20-22 parts of dolomite, 5-10 parts of limestone and 5-8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20-22 parts of potassium dichromate, 5-8 parts of fluorite, 15-22 parts of calcium carbonate, 15-18 parts of quartz, 15-18 parts of calcium chloride and 5-10 parts of borax.
Preferably, the fluorescent ground coat comprises the following raw materials in parts by weight: 30 parts of quartz, 20 parts of anhydrous boric acid, 35 parts of kyanite, 10 parts of zirconite, 10 parts of lithium carbonate and 15 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 15 parts of zirconium dioxide, 5 parts of ammonium metavanadate, 20 parts of quartz, 10 parts of sodium chloride, 20 parts of dolomite, 5 parts of limestone and 5 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20 parts of potassium dichromate, 5 parts of fluorite, 15 parts of calcium carbonate, 15 parts of quartz, 15 parts of calcium chloride and 5 parts of borax.
Preferably, the fluorescent ground coat comprises the following raw materials in parts by weight: 40 parts of quartz, 25 parts of anhydrous boric acid, 40 parts of kyanite, 12 parts of zirconite, 12 parts of lithium carbonate and 18 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 20 parts of zirconium dioxide, 8 parts of ammonium metavanadate, 25 parts of quartz, 12 parts of sodium chloride, 22 parts of dolomite, 10 parts of limestone and 8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 22 parts of potassium dichromate, 8 parts of fluorite, 22 parts of calcium carbonate, 18 parts of quartz, 18 parts of calcium chloride and 10 parts of borax.
Preferably, the fluorescent ground coat comprises the following raw materials in parts by weight: 35 parts of quartz, 22 parts of anhydrous boric acid, 38 parts of kyanite, 11 parts of zirconite, 11 parts of lithium carbonate and 16 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 18 parts of zirconium dioxide, 7 parts of ammonium metavanadate, 22 parts of quartz, 11 parts of sodium chloride, 21 parts of dolomite, 8 parts of limestone and 6 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 21 parts of potassium dichromate, 6 parts of fluorite, 16 parts of calcium carbonate, 16 parts of quartz, 16 parts of calcium chloride and 8 parts of borax.
The preparation method of the gradual color glaze strand ceramic is characterized by comprising the following steps:
step a, preparing a green body, drying the green body, and then putting the green body into a kiln for biscuit firing;
b, sequentially glazing a fluorescent ground coat, a middle glaze and a surface glaze on the blank, putting the blank into a glaze strand processor for processing after each glazing, accumulating the surface of the blank to form an annular glaze strand, and superposing the glaze strands formed after applying the glaze for three times;
and c, putting the glazed green body into a kiln for firing, cooling and discharging.
Preferably, the biscuit firing temperature is 850-880 ℃.
Preferably, in the step b, after each glazing, the glazed blank is placed into a glaze strand processor, the upper part and the lower part in the glaze strand processor are respectively ventilated, one of cold air and hot air is introduced into the upper part and the lower part in the glaze strand processor at the same time, and the cold air or the hot air is not introduced into the upper part and the lower part at the same time.
Preferably, the cold air temperature is 10-15 ℃, and the hot air temperature is 90-100 ℃.
Preferably, glaze strand processing ware includes interior cavity, goes up annular ventiduct, lower annular ventiduct, glaze accept groove, pivot and carousel, interior cavity upper portion is equipped with and is used for placing ceramic opening, the pivot is rotatable to be set up in internal portion central authorities, it is rotatory that the pivot passes through the transmission system drive by the motor, the carousel can be dismantled and set firmly in the pivot, and the change can be dismantled to the carousel with the different diameter size's of adaptation pottery, and the blank body is placed on the carousel and is followed the dish and rotate, go up annular ventiduct and lower annular ventiduct and set up respectively in the upper portion and the lower part of cavity, and annular ventiduct position is less than the carousel down, the glaze accepts the groove and sets up in interior cavity bottom for accept the unnecessary glaze that drips on the blank body.
Preferably, in the step b, the step of glazing the blank specifically comprises the following steps: the method comprises the following steps of (1) coating a fluorescent base glaze on a blank, then placing the blank into a turntable of a glaze strand processing device, starting the turntable to rotate, introducing cold air into an upper annular air duct, introducing hot air into a lower annular air duct, wherein the upper part and the lower part of the blank are respectively contacted with the cold air and the hot air, the temperatures of the glaze materials at the upper part and the lower part of the blank are different, the flowability of the glaze materials at the upper part and the lower part of the blank is different, the flowability of the glaze materials at the high temperature is large, the glaze surface is thin, the flowability of the glaze materials at the low temperature is low, the glaze surface is thick, and under the action of rotation and blowing, annular strip-shaped bulges are formed on the glaze surface, namely the glaze strands; taking out a blank from the inner cavity, coating the blank with the medium glaze, then putting the blank into a turntable of a glaze strand processor, starting the turntable to rotate, leading hot air to an upper annular ventilation channel, leading cold air to a lower annular ventilation channel, leading the upper part of the blank to be hot and the lower part of the blank to be cold, leading the upper glaze to flow faster than the lower part due to different heating temperatures, and continuously stacking the medium glaze on the basis of the fluorescent ground glaze to form an annular glaze strand; taking out the blank from the inner cavity, coating the blank with a glaze, then placing the blank into a turntable of a glaze strand processor, starting the turntable to rotate, introducing cold air into an upper annular ventilation channel, introducing hot air into a lower annular ventilation channel, cooling the upper part of the blank and heating the lower part of the blank, wherein the flow of the glaze at the lower part is faster than that at the upper part due to different heating temperatures, continuously stacking the glaze on the basis of the glaze to form an annular glaze strand, and finally forming the glaze strand stack of three layers of glaze on the surface of the blank.
From the above description, the gradual color glaze ceramic and the preparation method thereof provided by the invention have the following beneficial effects: the ground coat presents fluorescence green, the midcoat presents yellow, the overglaze presents green, the glaze wholly presents the greenish yellow gradual change effect of taking fluorescence effect, and because the in-process of glazing porcelain of each layer, because the difference of upper and lower difference in temperature leads to the mobility difference, a road local accumulational annular glaze strand appears on the glaze surface, every layer of surface of glazing porcelain all forms the glaze strand, the glaze strand of each layer piles up each other, the glaze of each layer frit fuses each other after the glaze burns, greenish yellow presents in turn, unique aesthetic feeling.
Drawings
Fig. 1 is a schematic structural diagram of a glaze strand processor.
Detailed Description
The invention is further described below by means of specific embodiments.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in the figure, the gradual change color glaze strand ceramic comprises a green body, wherein the surface of the green body is sequentially covered with a fluorescent ground coat, a middle glaze and a surface glaze from inside to outside, and the fluorescent ground coat comprises the following components in parts by weight: 30-40 parts of quartz, 20-25 parts of anhydrous boric acid, 35-40 parts of kyanite, 10-12 parts of zirconite, 10-12 parts of lithium carbonate and 15-18 parts of calcium carbonate; the raw materials of the medium glaze comprise the following components in parts by weight: 15-20 parts of zirconium dioxide, 5-8 parts of ammonium metavanadate, 20-25 parts of quartz, 10-12 parts of sodium chloride, 20-22 parts of dolomite, 5-10 parts of limestone and 5-8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20-22 parts of potassium dichromate, 5-8 parts of fluorite, 15-22 parts of calcium carbonate, 15-18 parts of quartz, 15-18 parts of calcium chloride and 5-10 parts of borax. The ground glaze presents fluorescent green, the middle glaze presents yellow, the overglaze presents green, the glaze overall presents the greenish-yellow gradual change effect with the fluorescent effect, and because in the process of glazing each layer, because of mobility difference, the glaze surface appears one way local accumulational annular glaze strand, each layer of surface of glazing all forms the glaze strand, the glaze strand of each layer piles up each other, the glaze of each layer of glaze fuses each other after the glaze burns, in the glaze firing process, fluorescent ground glaze, yellow middle glaze and green overglaze are burnt in proper order, the greenish-yellow after-burning presents in turn, unique aesthetic feeling.
The first embodiment is as follows:
the fluorescent ground glaze comprises the following raw materials in parts by weight: 30 parts of quartz, 20 parts of anhydrous boric acid, 35 parts of kyanite, 10 parts of zirconite, 10 parts of lithium carbonate and 15 parts of calcium carbonate; the raw materials of the medium glaze comprise the following components in parts by weight: 15 parts of zirconium dioxide, 5 parts of ammonium metavanadate, 20 parts of quartz, 10 parts of sodium chloride, 20 parts of dolomite, 5 parts of limestone and 5 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20 parts of potassium dichromate, 5 parts of fluorite, 15 parts of calcium carbonate, 15 parts of quartz, 15 parts of calcium chloride and 5 parts of borax.
The second embodiment is as follows:
the fluorescent ground glaze comprises the following raw materials in parts by weight: 40 parts of quartz, 25 parts of anhydrous boric acid, 40 parts of kyanite, 12 parts of zirconite, 12 parts of lithium carbonate and 18 parts of calcium carbonate; the raw materials of the medium glaze comprise the following components in parts by weight: 20 parts of zirconium dioxide, 8 parts of ammonium metavanadate, 25 parts of quartz, 12 parts of sodium chloride, 22 parts of dolomite, 10 parts of limestone and 8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 22 parts of potassium dichromate, 8 parts of fluorite, 22 parts of calcium carbonate, 18 parts of quartz, 18 parts of calcium chloride and 10 parts of borax.
The third concrete embodiment:
the fluorescent ground glaze comprises the following raw materials in parts by weight: 35 parts of quartz, 22 parts of anhydrous boric acid, 38 parts of kyanite, 11 parts of zirconite, 11 parts of lithium carbonate and 16 parts of calcium carbonate; the raw materials of the medium glaze comprise the following components in parts by weight: 18 parts of zirconium dioxide, 7 parts of ammonium metavanadate, 22 parts of quartz, 11 parts of sodium chloride, 21 parts of dolomite, 8 parts of limestone and 6 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 21 parts of potassium dichromate, 6 parts of fluorite, 16 parts of calcium carbonate, 16 parts of quartz, 16 parts of calcium chloride and 8 parts of borax.
The preparation method of the gradual change color glaze strand ceramic comprises the following steps:
step a, preparing a green body, drying the green body, and then putting the green body into a kiln for biscuit firing; the biscuit firing temperature is 850-880 ℃.
B, sequentially glazing a fluorescent ground coat, a middle glaze and a surface glaze on the blank, putting the blank into a glaze strand processor for processing after each glazing, accumulating the surface of the blank to form an annular glaze strand, and superposing the glaze strands formed after applying the glaze for three times;
and c, putting the glazed green body into a kiln for firing, cooling and discharging.
In the step b, after each glazing, the glazed blank body is placed into a glaze strand processor, the upper part and the lower part in the glaze strand processor are respectively ventilated, one of cold air and hot air is introduced into the upper part and the lower part in the glaze strand processor at the same time, and the cold air or the hot air is not introduced into the upper part and the lower part at the same time.
The cold air temperature is 10-15 ℃, and the hot air temperature is 90-100 ℃.
As shown in fig. 1, the glaze strand processor comprises an inner cavity 1, an upper annular air duct 2, a lower annular air duct 3, a glaze receiving groove 4, a rotating shaft 5 and a rotating disc 6, the upper part of the inner cavity 1 is provided with an opening for placing ceramics, the rotating shaft 5 is rotatably arranged in the center inside the inner cavity 1, the rotating shaft 5 is driven to rotate by a motor through a transmission system, the rotating disc 6 can be detachably fixed on the rotating shaft 5, the rotating disc 6 can be detachably replaced by ceramics with different diameters in adaptation, a blank body is placed on the rotating disc 6 and rotates along with the disc, the upper annular air duct 2 and the lower annular air duct 3 are respectively arranged on the upper part and the lower part of the inner cavity 1, the position of the lower annular air duct 3 is lower than the rotating disc 6, the glaze receiving groove 4 is arranged at the bottom of the inner cavity 1 and is used for receiving redundant glaze dropped on the blank body.
In the step b, the step of glazing the blank specifically comprises the following steps: the method comprises the following steps of (1) coating a fluorescent base glaze on a blank, then placing the blank into a turntable 6 of a glaze strand processor, starting the turntable 6 to rotate, enabling an upper annular air duct 2 to be communicated with cold air and enabling a lower annular air duct 3 to be communicated with hot air, enabling the upper part and the lower part of the blank to be contacted with the cold air and the hot air respectively, enabling the glaze materials at the upper part and the lower part of the blank to be different in temperature, enabling the glaze materials at the upper part and the lower part of the blank to be different in flowability, enabling the glaze materials at the high temperature to be large in flowability and thin in glaze thickness, enabling the glaze materials at the low temperature to be low in flowability and thick in glaze thickness under the action of rotation and blowing and the difference in flowability, and enabling the glaze surface to form annular strip-shaped bulges, namely the glaze strand; taking out the green body from the inner cavity 1, glazing the green body, then putting the green body into a turntable 6 of a glaze strand processor, starting the turntable 6 to rotate, leading hot air to an upper annular ventilation duct 2, leading cold air to a lower annular ventilation duct 3, leading the upper part of the green body to be hot and the lower part to be cold, leading the upper glaze to flow faster than the lower part due to different heating temperatures, and continuously stacking the middle glaze on the basis of the fluorescent ground glaze to form annular glaze strands; taking out the blank from the inner cavity 1, coating the blank with a glaze, then placing the blank into a turntable 6 of a glaze strand processor, starting the turntable 6 to rotate, leading cold air to the upper annular ventilation duct 2, leading hot air to the lower annular ventilation duct 3, leading the upper part of the blank to be cold and the lower part to be hot, leading the lower glaze to flow faster than the upper part due to different heating temperatures, continuously stacking the glaze on the basis of the middle glaze to form annular glaze strands, and finally forming glaze strand stacking of three layers of glaze on the surface of the blank.
In the step c, the temperature rise curve is as follows: heating to 1200 ℃ within 5-5.5h, preserving heat for 1-1.5h, and firing the ground glaze; heating to 1250 deg.C within 0.5h, keeping the temperature for 1-1.5h, and sintering the middle glaze; heating to 1320 degree of setting within 0.5h, keeping the temperature for 1-1.5h, and sintering the overglaze; due to the existence of the glaze strands, the glaze materials on each layer are uniformly distributed, so that the superposed glaze materials on different parts have different main hues, the overall appearance is a yellow-green blending appearance, and the glaze has a fluorescent effect at night.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention, and what is not described in detail in the present specification is prior art and is known to those skilled in the art.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.
The above description is only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of the present invention.
Claims (10)
1. Gradual change color glaze strand pottery which characterized in that: the surface of the blank body is covered with a fluorescent ground coat, a middle coat and a cover coat in sequence from inside to outside, and the fluorescent ground coat comprises the following raw materials in parts by weight: 30-40 parts of quartz, 20-25 parts of anhydrous boric acid, 35-40 parts of kyanite, 10-12 parts of zirconite, 10-12 parts of lithium carbonate and 15-18 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 15-20 parts of zirconium dioxide, 5-8 parts of ammonium metavanadate, 20-25 parts of quartz, 10-12 parts of sodium chloride, 20-22 parts of dolomite, 5-10 parts of limestone and 5-8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20-22 parts of potassium dichromate, 5-8 parts of fluorite, 15-22 parts of calcium carbonate, 15-18 parts of quartz, 15-18 parts of calcium chloride and 5-10 parts of borax.
2. The gradient color glaze ceramic of claim 1 wherein: the fluorescent ground glaze comprises the following raw materials in parts by weight: 30 parts of quartz, 20 parts of anhydrous boric acid, 35 parts of kyanite, 10 parts of zirconite, 10 parts of lithium carbonate and 15 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 15 parts of zirconium dioxide, 5 parts of ammonium metavanadate, 20 parts of quartz, 10 parts of sodium chloride, 20 parts of dolomite, 5 parts of limestone and 5 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 20 parts of potassium dichromate, 5 parts of fluorite, 15 parts of calcium carbonate, 15 parts of quartz, 15 parts of calcium chloride and 5 parts of borax.
3. The gradient color glaze ceramic of claim 1 wherein: the fluorescent ground glaze comprises the following raw materials in parts by weight: 40 parts of quartz, 25 parts of anhydrous boric acid, 40 parts of kyanite, 12 parts of zirconite, 12 parts of lithium carbonate and 18 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 20 parts of zirconium dioxide, 8 parts of ammonium metavanadate, 25 parts of quartz, 12 parts of sodium chloride, 22 parts of dolomite, 10 parts of limestone and 8 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 22 parts of potassium dichromate, 8 parts of fluorite, 22 parts of calcium carbonate, 18 parts of quartz, 18 parts of calcium chloride and 10 parts of borax.
4. The gradient color glaze ceramic of claim 1 wherein: the fluorescent ground glaze comprises the following raw materials in parts by weight: 35 parts of quartz, 22 parts of anhydrous boric acid, 38 parts of kyanite, 11 parts of zirconite, 11 parts of lithium carbonate and 16 parts of calcium carbonate; the medium glaze comprises the following raw materials in parts by weight: 18 parts of zirconium dioxide, 7 parts of ammonium metavanadate, 22 parts of quartz, 11 parts of sodium chloride, 21 parts of dolomite, 8 parts of limestone and 6 parts of potassium carbonate; the overglaze comprises the following raw materials in parts by weight: 21 parts of potassium dichromate, 6 parts of fluorite, 16 parts of calcium carbonate, 16 parts of quartz, 16 parts of calcium chloride and 8 parts of borax.
5. A method for preparing a gradient-colour ceramic glaze strand as claimed in claims 1 to 5, comprising the steps of:
step a, preparing a green body, drying the green body, and then putting the green body into a kiln for biscuit firing;
b, sequentially glazing a fluorescent ground coat, a middle glaze and a surface glaze on the blank, putting the blank into a glaze strand processor for processing after each glazing, accumulating the surface of the blank to form an annular glaze strand, and superposing the glaze strands formed after applying the glaze for three times;
and c, putting the glazed green body into a kiln for firing, cooling and discharging.
6. The method of preparing a gradient color glaze ceramic as claimed in claim 5, wherein: the biscuit firing temperature is 850-880 ℃.
7. The method of preparing a gradient color glaze ceramic as claimed in claim 5, wherein: in the step b, after each glazing, the glazed blank is placed into a glaze strand processor, the upper part and the lower part in the glaze strand processor are respectively ventilated, one of cold air and hot air is introduced into the upper part and the lower part in the glaze strand processor at the same time, and the cold air or the hot air is not introduced into the upper part and the lower part at the same time.
8. The method of preparing a gradient color glaze ceramic as claimed in claim 5, wherein: the cold air temperature is 10-15 ℃, and the hot air temperature is 90-100 ℃.
9. The method of preparing a gradient color glaze ceramic as claimed in claim 5, wherein: the glaze strand processor includes interior cavity, goes up annular ventiduct, lower annular ventiduct, frit and accepts groove, pivot and carousel, interior cavity upper portion is equipped with and is used for placing porcelainous opening, the pivot is rotatable to be set up in the internal portion central authorities in, it is rotatory that the pivot is passed through the transmission system drive by the motor, the carousel can be dismantled and set firmly in the pivot, and the change can be dismantled to the carousel with the pottery of the different diameters sizes of adaptation, and the body is placed on the carousel and is followed the plate and rotate, go up annular ventiduct and lower annular ventiduct and set up respectively in the upper portion and the lower part of cavity, and annular ventiduct position is less than the carousel down, the frit accepts the groove and sets up in interior cavity bottom for accept the unnecessary frit of drippage on the body.
10. The gradient color glaze ceramic and the preparation method thereof as claimed in claim 5, wherein: in the step b, the step of glazing the blank specifically comprises the following steps: the method comprises the following steps of (1) coating a fluorescent base glaze on a blank, then placing the blank into a turntable of a glaze strand processing device, starting the turntable to rotate, introducing cold air into an upper annular air duct, introducing hot air into a lower annular air duct, wherein the upper part and the lower part of the blank are respectively contacted with the cold air and the hot air, the temperatures of the glaze materials at the upper part and the lower part of the blank are different, the flowability of the glaze materials at the upper part and the lower part of the blank is different, the flowability of the glaze materials at the high temperature is large, the glaze surface is thin, the flowability of the glaze materials at the low temperature is low, the glaze surface is thick, and under the action of rotation and blowing, annular strip-shaped bulges are formed on the glaze surface, namely the glaze strands; taking out a blank from the inner cavity, coating the blank with the medium glaze, then putting the blank into a turntable of a glaze strand processor, starting the turntable to rotate, leading hot air to an upper annular ventilation channel, leading cold air to a lower annular ventilation channel, leading the upper part of the blank to be hot and the lower part of the blank to be cold, leading the upper glaze to flow faster than the lower part due to different heating temperatures, and continuously stacking the medium glaze on the basis of the fluorescent ground glaze to form an annular glaze strand; taking out the blank from the inner cavity, coating the blank with a glaze, then placing the blank into a turntable of a glaze strand processor, starting the turntable to rotate, introducing cold air into an upper annular ventilation channel, introducing hot air into a lower annular ventilation channel, cooling the upper part of the blank and heating the lower part of the blank, wherein the flow of the glaze at the lower part is faster than that at the upper part due to different heating temperatures, continuously stacking the glaze on the basis of the glaze to form an annular glaze strand, and finally forming the glaze strand stack of three layers of glaze on the surface of the blank.
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| CN202210510306.6A CN114890821B (en) | 2022-05-11 | 2022-05-11 | Gradient color glaze ceramic and preparation method thereof |
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| CN114656290A (en) * | 2022-04-24 | 2022-06-24 | 福建省德化县瓷国文化有限公司 | Fluorescent dark-line rainbow-colored glaze ceramic and preparation method thereof |
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| CN116986924B (en) * | 2023-08-10 | 2024-04-16 | 福建省德化县华茂陶瓷有限公司 | Gold red gradient magma texture glaze ceramic and preparation method thereof |
| CN117185836A (en) * | 2023-09-11 | 2023-12-08 | 福建德化瓷国文化股份有限公司 | Annular hollowed-out glazed ceramic with suspension effect and preparation method thereof |
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