CN114956562A - Secret color porcelain moxa glaze and preparation method thereof, and secret color porcelain and preparation method thereof - Google Patents

Secret color porcelain moxa glaze and preparation method thereof, and secret color porcelain and preparation method thereof Download PDF

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CN114956562A
CN114956562A CN202210721705.7A CN202210721705A CN114956562A CN 114956562 A CN114956562 A CN 114956562A CN 202210721705 A CN202210721705 A CN 202210721705A CN 114956562 A CN114956562 A CN 114956562A
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glaze
porcelain
secret
moxa
color
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孙威
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Ruier Zhejiang Brand Management Co ltd
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Ruier Zhejiang Brand Management Co ltd
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C8/00Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C4/00Compositions for glass with special properties
    • C03C4/02Compositions for glass with special properties for coloured glass
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81Coating or impregnation
    • C04B41/85Coating or impregnation with inorganic materials
    • C04B41/86Glazes; Cold glazes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
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  • Ceramic Engineering (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Glass Compositions (AREA)

Abstract

The invention provides a secret color porcelain moxa-colored glaze and a preparation method thereof, and a secret color porcelain and a preparation method thereof, and relates to the technical field of porcelain manufacturing, wherein the preparation method of the secret color porcelain moxa-colored glaze comprises the following steps: washing the razor clam mud and limestone, and carrying out ball milling and drying; burning plants to obtain plant ash, soaking in water to remove alkali, and drying in the sun; and mixing the razor clam mud, limestone and plant ash to obtain the secret porcelain moxa glaze. The preparation method of the special-color porcelain moxa glaze disclosed by the invention has the advantages that the contents of potassium, sodium and calcium in the glaze are kept in a proper range, the contents of potassium oxide and sodium oxide in the glaze are obviously reduced, the flowing of the glaze is reduced, the stability, uniformity and adhesiveness of the glaze are improved, the phenomena of glaze flowing, glaze stacking or glaze shortage are effectively avoided, the defects of leakage, cracking and the like of a finished porcelain are reduced, the glaze is uniform in thickness, uniform, moist and strong in permeability, and the quality, the attractiveness and the yield of the moxa glaze finished product are obviously improved.

Description

Secret color porcelain moxa glaze and preparation method thereof, and secret color porcelain and preparation method thereof
Technical Field
The invention relates to the technical field of porcelain manufacturing, in particular to a special-color porcelain moxa-colored glaze and a preparation method thereof, and special-color porcelain and a preparation method thereof.
Background
The secret color porcelain generally refers to a celadon system with a common pulse from east Han to Song, kiln sites are mainly distributed in places such as Jinjiang Shangyao, Yuyao, Shaoxing and Ningbo, and the secret color porcelain is mysterious in color and has a process secret without being famous, yellow is taken as a main component, moist and glossy in the early stage, is translucent, green is taken as a main component later, and yellow is not rare. In the secret porcelain, the ai colored glaze is a treasure in the traditional high-grade over-kiln secret porcelain, is also named as a thousand-peak emerald color, and is favored by people with a unique glaze color of being yellow in green, elegant and beautiful. At present, the formula and the firing process of the moxa glaze are lost, and the research on the moxa glaze to reduce the beautiful color of the moxa glaze is a popular research direction in the field.
The secret color porcelain has higher requirements on raw material formulas and firing processes, the glaze colors obtained by different glaze formulas and firing methods can be far away from each other, and the technical difficulty is extremely high in order to ensure that the glaze colors are transparent, uniform and clean and the same glaze color is stably fired. The moxa glaze prepared by the prior art has the problems of large color deviation, turbid color, dark grey and dull color, rough surface, poor texture, unstable glaze color and the like compared with the traditional moxa glaze. Meanwhile, in the firing process, if the firing temperature is not matched with the flowability of the glaze, phenomena such as glaze flowing, glaze stacking or glaze shortage and the like easily occur, the glaze on the convex part is too thick and thin, and the concave part forms the accumulation of the glaze, so that the thickness of the glaze is not uniform, the porcelain body has the defects of leakage, crack and the like, the attractiveness and the quality of the porcelain are poor, the firing efficiency is low, and the rejection rate is high.
Disclosure of Invention
The invention solves the problems of uneven thickness, poor aesthetic property and quality and high rejection rate of the existing secret color porcelain ai colored glaze.
In order to solve the problems, the invention provides a preparation method of a secret porcelain moxa glaze, which comprises the following steps: collecting initial razor clam mud, elutriating and ball-milling, taking out slurry and drying in the sun to obtain the razor clam mud serving as a raw material; collecting initial limestone, washing and ball-milling, taking out slurry and drying in the sun to obtain raw material limestone; burning plants to obtain initial plant ash, performing water soaking and alkali removing treatment on the initial plant ash, and drying in the sun to obtain raw material plant ash; and mixing the raw material razor clam mud, the raw material limestone and the raw material plant ash to obtain the secret porcelain moxa-colored glaze.
Optionally, the step of subjecting the initial plant ash to water soaking and alkali removing comprises placing the initial plant ash in water, fully stirring and filtering, and repeating for 10-16 times.
Optionally, in step S4, the mixing ratio of the razor clam paste, the limestone and the plant ash is: 5-8% of the raw material razor clam mud, 14-22% of the raw material limestone and 70-81% of the raw material plant ash by mass percentage.
Compared with the prior art, the invention has the following technical effects:
the preparation method of the special-color porcelain ai-color glaze provided by the invention takes the razor clam mud, limestone and plant ash as main raw materials, and the plant ash is subjected to water soaking and alkali removal treatment, wherein the razor clam mud has good viscosity and can enhance the adhesion with a carcass; calcium in the limestone can enhance the suspension capacity of the glaze; the main component of the plant ash is potassium carbonate, and simultaneously contains a certain amount of sodium element, after the plant ash is blended into glaze by adding water, the potassium element and the sodium element in the plant ash mainly exist in the forms of potassium oxide and sodium oxide, the sodium oxide and the potassium oxide can make the color of the secret porcelain brilliant, but the sodium oxide and the potassium oxide are fluxing agents with strong effects, so that the glaze has stronger fluidity due to excessive potassium element and sodium element, in addition, the thermal expansion coefficient of the potassium element and the sodium element is large, the glaze containing high potassium oxide and sodium oxide is easy to crack on the ceramic, the glaze surface is soft, easy to damage and peel, slightly dissolved in acid, and has the tendency of efflorescence and deterioration. Therefore, the method carries out water soaking alkali removal treatment on the plant ash, removes a certain amount of potassium element and sodium element, enables the content of the potassium element and the sodium element to be in a proper range, and under the premise of ensuring the effect of the potassium element and the sodium element on the brilliant color of the secret porcelain, the potassium element and the sodium element cooperate with calcium element in limestone to better express the state of glaze, reduce the flow of the glaze, increase the stability, uniformity and adhesiveness of the glaze, and effectively avoid the phenomena of flowing glaze, stacking glaze or glaze shortage in the firing process Aesthetic appearance and yield.
The invention also aims to provide a secret color porcelain moxa glaze which is prepared based on the preparation method of the secret color porcelain moxa glaze, and comprises the following components in percentage by mass: 65 to 78 percent of silicon dioxide, 7 to 13 percent of aluminum oxide, 7 to 12 percent of calcium oxide, 3 to 6 percent of potassium oxide, 3 to 5 percent of phosphorus pentoxide, 1 to 3 percent of ferric oxide, 0.1 to 0.5 percent of sodium oxide, 0.1 to 0.4 percent of magnesium oxide, 0.08 to 0.25 percent of titanium oxide and 0.03 to 0.08 percent of manganese dioxide.
The components and the content ratio of the special color porcelain moxa glaze provided by the invention can enable the prepared special color porcelain moxa glaze to be yellow-gray cyan, have strong vitreous transparency, and can maximally restore the color texture of the traditional moxa glaze, and other advantages of the special color porcelain moxa glaze relative to the prior art are the same as those of the preparation method of the special color porcelain moxa glaze, and are not repeated herein.
The invention also aims to provide the secret color porcelain, which comprises a blank and the secret color porcelain moxa glaze.
The glaze material of the secret color porcelain disclosed by the invention is strong in adhesion with a blank material and good in combination, the obtained secret color porcelain presents a yellowish white color, the glaze surface is uniform and transparent, the body quality of the porcelain is fine and compact, the porcelain has a glazed and translucent texture and better attractiveness and quality, and other advantages of the secret color porcelain in the prior art are the same as those of the preparation method of the secret color porcelain, so that the detail is not repeated.
The invention also aims to provide a preparation method of the secret color porcelain, which is used for preparing the secret color porcelain and comprises the following steps: blending the secret-color porcelain moxa glaze with water to obtain secret-color porcelain moxa glaze slurry; carrying out biscuit firing on the blank to obtain a biscuit; and glazing the biscuit by using the secret-color porcelain moxa glaze slurry, and firing in a kiln to obtain the secret-color porcelain.
Optionally, the concentration of the secret porcelain Ehrlich glaze slurry is 48-52 baume degrees.
Optionally, the kiln firing process comprises: placing the glazed biscuit in a kiln for firing, and gradually increasing the temperature of the kiln from normal temperature to 525-575 ℃ within 3-5 hours;
continuously firing, gradually increasing the kiln temperature to 950-1000 ℃ within 2-3 hours, and then preserving the heat for 1-2 hours;
firing by using reducing flame, and gradually raising the temperature of the kiln to 1120-1130 ℃ within 1-2 hours;
weighting the reducing flame, gradually raising the temperature of the kiln to 1140-1150 ℃ within 1-2 hours, and then preserving the heat for 1-2 hours;
and (4) converting the reducing flame into oxidizing flame, slowly cooling for 3-5 hours until the temperature of the kiln is reduced to 800-.
Optionally, the firing temperature of the bisque firing is 900-.
Optionally, the glazing process includes: and carrying out glaze dipping treatment on the green body, carrying out glaze blowing treatment after air drying, and finally naturally air drying, wherein the glaze thickness range after the glaze dipping treatment comprises 0.6-0.8mm, and the glaze thickness range after the glaze blowing treatment comprises 0.7-1 mm.
The preparation method of the secret color porcelain has the advantages of lower calcining temperature, high firing efficiency, high yield and resource saving, and other advantages of the preparation method of the secret color porcelain in the prior art are the same as those of the preparation method of the secret color porcelain moxa glaze, so that the details are not repeated.
Drawings
Fig. 1 is a flow chart of a preparation method of a secret porcelain moxa glaze provided by an embodiment of the invention;
fig. 2 is a flow chart of a preparation method of the secret porcelain provided by the embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, a method for preparing a secret porcelain moxa glaze provided by an embodiment of the present invention includes the following steps:
collecting initial razor clam mud, elutriating and ball-milling, taking out slurry and drying in the sun to obtain the razor clam mud serving as a raw material;
the razor clam mud is a special word of grey mud which is extracted 2-4 meters below the surface layer soil in the field or in the mountain ao in the Ningbo area, the mud is called green silk mud in the southwest area of Zhejiang, the mud is called big green soil and double green soil in the central China northern area, the razor clam mud is good in viscosity and suitable for manufacturing pottery porcelain, and the pottery porcelain can be used as one of raw materials of special porcelain moxa glaze, so that the adhesion between the pottery porcelain and a matrix can be enhanced, and a better firing effect is achieved.
Preferably, the raw material razor clam mud in the embodiment comprises the following chemical components in percentage by mass: 66 to 70 percent of silicon oxide, 17 to 18 percent of aluminum oxide, 1.7 to 5 percent of calcium oxide, 2.8 to 3.5 percent of potassium oxide, 0.07 to 0.1 percent of phosphorus pentoxide, 4.8 to 5.2 percent of ferric oxide, 0.6 to 1.2 percent of sodium oxide, 0.5 to 0.8 percent of magnesium oxide, 1.1 to 1.2 percent of titanium oxide and 0.02 to 0.08 percent of manganese dioxide.
Preferably, in the embodiment, the ball milling time of the initial razor clam mud is 10 hours, so as to perform sufficient ball milling and crushing on the razor clam mud.
Collecting initial limestone, elutriating and ball-milling, taking out slurry and drying in the sun to obtain raw material limestone;
the limestone mainly contains calcium carbonate, and calcium can increase the suspension capacity of the glaze, so that the secret porcelain moxa glaze can be better attached to the surface of the blank.
Preferably, in this embodiment, the time for ball milling the initial razor clam mud is 24 hours, so as to fully ball mill and crush the limestone.
Burning plants to obtain initial plant ash, performing water soaking and alkali removing treatment on the initial plant ash, and drying in the sun to obtain raw material plant ash;
plant ash is the residue of plants (herbs and woody plants) after combustion, mainly in the form of carbon, and the main component is potassium carbonate (K) 2 CO 3 : 6-12%) and phosphorus pentoxide (P) 2 O 5 : 1.5-3%), sodium, calcium, magnesium, silicon, sulfur, iron, manganese, copper, zinc, boron, molybdenum and other elements, and after the glaze is mixed with water to form slurry, the potassium element and the sodium element mainly exist in the form of potassium oxide and sodium oxide, and the potassium oxide and the sodium oxide are effectiveThe strong fluxing agent with excessive content can improve the fluidity of the glaze, so that the plant ash is subjected to water soaking and alkali removal treatment to remove partial potassium element and sodium element, so that the content of the potassium element and the sodium element in the plant ash is in a proper range, and the potassium element and the sodium element in the plant ash are in synergistic action with the calcium element in the limestone, thereby better expressing the state of the glaze, reducing the fluidity of the glaze and increasing the stability, uniformity and adhesiveness of the glaze.
Mixing the raw material razor clam mud, the raw material limestone and the raw material plant ash to obtain the secret porcelain moxa glaze.
The preparation method of the secret porcelain ai color glaze provided by the embodiment of the invention takes the razor clam mud, limestone and plant ash as main raw materials, and the plant ash is subjected to water soaking and alkali removal treatment, wherein the razor clam mud has good viscosity and can enhance the adhesion with a carcass; calcium element in the limestone can enhance the suspension capacity of the glaze; the main component of the plant ash is potassium carbonate, and simultaneously contains a certain amount of sodium element, after the plant ash is blended into glaze by adding water, the potassium element and the sodium element in the plant ash mainly exist in the forms of potassium oxide and sodium oxide, the sodium oxide and the potassium oxide can make the color of the secret porcelain brilliant, but the sodium oxide and the potassium oxide are fluxing agents with strong effects, so that the glaze has stronger fluidity due to excessive potassium element and sodium element, in addition, the thermal expansion coefficient of the potassium element and the sodium element is large, the glaze containing high potassium oxide and sodium oxide is easy to crack on the ceramic, the glaze surface is soft, easy to damage and peel, slightly dissolved in acid, and has the tendency of efflorescence and deterioration. Therefore, the method carries out water soaking alkali removal treatment on the plant ash, removes a certain amount of potassium element and sodium element, enables the content of the potassium element and the sodium element to be in a proper range, and under the premise of ensuring the effect of the potassium element and the sodium element on the brilliant color of the secret porcelain, the potassium element and the sodium element cooperate with calcium element in limestone to better express the state of glaze, reduce the flow of the glaze, increase the stability, uniformity and adhesiveness of the glaze, and effectively avoid the phenomena of flowing glaze, stacking glaze or glaze shortage in the firing process Aesthetic appearance and yield.
In some specific embodiments, the step of performing the water soaking and alkali removing treatment on the initial plant ash comprises the steps of putting the initial plant ash into water, fully stirring and filtering, and repeating for 10-16 times, so that the content of potassium element and sodium element in the plant ash is in a better range, and the optimal alkali removing effect is realized.
In some specific examples, the mixing ratio of the razor clam mud, the limestone and the plant ash in step S4 is as follows: according to the mass percentage, 5-8% of the raw material razor clam mud, 14-22% of the raw material limestone and 70-81% of the raw material plant ash are calculated, so that the contents of potassium, sodium and calcium elements in the secret porcelain moxa glaze are kept in a proper range, the state of the glaze can be well expressed under the synergistic effect of the elements, the flowing of the glaze is reduced, and the stability, uniformity and adhesiveness of the glaze are improved.
Another embodiment of the invention provides a secret color porcelain ai-color glaze which is prepared based on the preparation method of the secret color porcelain ai-color glaze, and the secret color porcelain ai-color glaze comprises the following components in percentage by mass: 65 to 78 percent of silicon dioxide, 7 to 13 percent of aluminum oxide, 7 to 12 percent of calcium oxide, 3 to 6 percent of potassium oxide, 3 to 5 percent of phosphorus pentoxide, 1 to 3 percent of ferric oxide, 0.1 to 0.5 percent of sodium oxide, 0.1 to 0.4 percent of magnesium oxide, 0.08 to 0.25 percent of titanium oxide and 0.03 to 0.08 percent of manganese dioxide. The components and the content proportion can ensure that the prepared secret color porcelain moxa glaze presents cyan with yellow gray, has strong transparent feeling of colored glaze, and can maximally restore the color texture of the traditional moxa glaze.
Preferably, the mass percentages of the components are as follows: 73.7 percent of silicon dioxide, 10.23 percent of aluminum oxide, 9.57 percent of calcium oxide, 4.18 percent of potassium oxide, 2.10 percent of phosphorus pentoxide, 1.43 percent of ferric oxide, 0.35 percent of sodium oxide, 0.27 percent of magnesium oxide, 0.21 percent of titanium oxide and 0.07 percent of manganese dioxide.
Another embodiment of the invention provides a secret color porcelain, which comprises a blank and the secret color porcelain ai color glaze, wherein the secret color porcelain blank and the glaze prepared by the embodiment have strong adhesion, good combination and excellent quality.
Another embodiment of the present invention provides a method for preparing a secret porcelain, which is shown in fig. 2 and includes the following steps: blending the secret-color porcelain moxa glaze with water to obtain secret-color porcelain moxa glaze slurry; the blank is subjected to biscuit firing to obtain a biscuit, so that the mechanical strength of the blank is increased, the biscuit subjected to biscuit firing is glazed, the blank is prevented from being cracked due to soaking, the rate of qualified products can be improved, and the rate of defective products and defective products can be reduced; glazing the biscuit by using the secret porcelain moxa glaze slurry, and firing in a kiln to obtain the secret porcelain.
In some specific embodiments, the concentration of the secret color porcelain ai-color glaze slurry is 48-52 permy degrees, so that the secret color porcelain ai-color glaze slurry is in an optimal flowing state, subsequent glazing is facilitated, and the secret color porcelain with better quality is obtained.
In some embodiments, the kiln firing process comprises: placing the glazed biscuit in a kiln for firing, and gradually increasing the temperature of the kiln from normal temperature to 525-575 ℃ within 3-5 hours;
continuously firing, gradually increasing the kiln temperature to 950-1000 ℃ within 2-3 hours, and then preserving the heat for 1-2 hours;
firing by using reducing flame, and gradually raising the temperature of the kiln to 1120-1130 ℃ within 1-2 hours;
adding the reducing flame, gradually raising the temperature of the kiln to 1140-1150 ℃ within 1-2 hours, and then preserving the heat for 1-2 hours, wherein adding the reducing flame means increasing the size of an air door to ensure that the flame burns more fully, the flame burns fully to consume oxygen in the porcelain, the reducing reaction is promoted, and the cyan on the surface of the secret porcelain is further enhanced;
and (3) converting the reducing flame into oxidizing flame, slowly cooling for 3-5 hours until the temperature of the kiln is reduced to 800-850 ℃, stopping the fire and naturally cooling.
In some specific embodiments, the firing temperature of bisque firing is 900-.
In some specific embodiments, the process of glazing comprises: the method comprises the steps of carrying out glaze dipping treatment on a plain body, carrying out glaze blowing treatment after airing, and finally naturally airing, wherein the glaze thickness range after the glaze dipping treatment comprises 0.6-0.8mm, the glaze thickness range after the glaze blowing treatment comprises 0.7-1mm, and the glazing thickness is kept within 1mm, so that a glaze is fully bonded on a blank, the best combination state between the glaze and the blank is realized, meanwhile, the phenomena of glaze flowing, glaze stacking or glaze shortage in the process of firing the Chinese mugwort glaze are avoided, the defects of finished porcelain such as cracking, leakage and the like are reduced, the thickness of the glaze is uniform, the body quality of the porcelain is fine and compact, and the porcelain degree is high.
The technical scheme of the invention is further described below by combining specific embodiments, and the purpose and advantages of the invention are clear.
Example 1
Step T1: collecting initial razor clam mud, elutriating, ball-milling for 10 hours, taking out slurry and drying in the sun to obtain the razor clam mud serving as a raw material; collecting initial limestone, washing, ball-milling for 24 hours, discharging the slurry and drying in the sun to obtain raw material limestone; burning plants to obtain initial plant ash, performing 15 rounds of water soaking and alkali removal treatment on the initial plant ash, and drying in the sun to obtain raw material plant ash; mixing the raw materials according to the mass percentage of 5% of the razor clam mud, 16% of the limestone and 81% of the plant ash to obtain the special-color porcelain moxa-colored glaze;
step T2: adjusting the secret color porcelain ai-color glaze obtained in the step T1 to the concentration of 48 baume degrees by using water to obtain secret color porcelain ai-color glaze slurry;
step T3: biscuit firing is carried out on the blank at the temperature of 900 ℃ to obtain biscuit blank;
step T4: carrying out glaze dipping treatment on the biscuit obtained in the step T3 by using the secret porcelain moxa glaze slurry obtained in the step T2, wherein the glaze thickness is 0.6mm after the glaze dipping treatment, carrying out glaze blowing treatment after air drying, and naturally drying the biscuit after the glaze blowing treatment, wherein the glaze thickness is 0.7 mm;
step T5: placing the glazed biscuit in the step T4 into a kiln for firing, and gradually increasing the temperature of the kiln from normal temperature to 525 ℃ within 3 hours; continuously firing, gradually raising the temperature of the kiln to 950 ℃ within 2 hours, and then preserving the temperature for 1 hour; firing by using reducing flame, and gradually raising the temperature of the kiln to 1120 ℃ within 1 hour; adding reducing flame, gradually raising the temperature of the kiln to 1140 ℃ within 1 hour, and then preserving the temperature for 1 hour; and (4) converting the reducing flame into oxidizing flame, slowly cooling for 3 hours until the temperature of the kiln is reduced to 800 ℃, stopping the fire and naturally cooling.
The obtained secret-color porcelain moxa glaze material has low fluidity, good stability, uniformity and adhesiveness, almost no phenomena of glaze flowing, glaze stacking, glaze shortage and the like occur in the firing process, the occurrence rate of defects of cracking, leakage and the like of the finished product secret-color porcelain moxa glaze obtained by firing is low, the thermal stability is good, the surface is full and uniform, the permeability is good, and the product is in a greenish color with slight opalescence.
Example 2
This example differs from example 1 in that: in the step T1, the raw materials comprise 8 mass percent of the raw material razor clam mud, 22 mass percent of the raw material limestone and 70 mass percent of the raw material plant ash, and the number of the alkali removing treatment rounds of the initial plant ash soaking water is 10; the concentration of the secret porcelain moxa glaze slurry in the step T2 is 52 baume degrees; the bisque firing temperature in the step T3 is 1000 ℃; in the step T4, the thickness of the glaze after the glaze dipping treatment is 0.8mm, and the thickness of the glaze after the glaze blowing treatment is 1 mm; the kiln firing process in the step T5 is as follows: placing the green body into a kiln for firing, and gradually increasing the temperature of the kiln from normal temperature to 575 ℃ within 5 hours; continuously firing, gradually raising the temperature of the kiln to 1000 ℃ within 3 hours, and then preserving the temperature for 2 hours; firing by using reducing flame, and gradually raising the temperature of the kiln to 1130 ℃ within 2 hours; adding reducing flame, gradually raising the temperature of the kiln to 1200 ℃ within 2 hours, and then preserving the temperature for 2 hours; and (4) converting the reducing flame into oxidizing flame, slowly cooling for 5 hours until the temperature of the kiln is reduced to 850 ℃, stopping the fire and naturally cooling.
The secret color porcelain moxa glaze material obtained by the embodiment has good stability, uniformity and adhesiveness, the phenomena of glaze flowing, glaze stacking, glaze shortage and the like hardly occur in the firing process, and the finished product secret color porcelain moxa glaze obtained by firing is uniform, translucent, low in opacifying phenomenon, obvious in colored glaze texture, strong in transparency, wholly presents moxa-blue color and slightly yellow in cyan, and can better restore the glaze color of the refined product of the secret color porcelain.
Example 3
This example differs from example 1 in that: in the step T1, the raw materials comprise 7 mass percent of the raw material razor clam mud, 14 mass percent of the raw material limestone and 79 mass percent of the raw material plant ash, and the number of the alkali removing treatment rounds of the initial plant ash soaking water is 16; the concentration of the secret porcelain moxa glaze slurry in the step T2 is 50 baume degrees; the bisque firing temperature in the step T3 is 1100 ℃; in the step T4, the thickness of the glaze after the glaze dipping treatment is 0.7mm, and the thickness of the glaze after the glaze blowing treatment is 0.9 mm; the kiln firing process in the step T5 is as follows: placing the biscuit in a kiln for firing, and gradually increasing the temperature of the kiln from the normal temperature to 550 ℃ within 4 hours; continuously firing, gradually raising the temperature of the kiln to 1100 ℃ within 2.5 hours, and then preserving the temperature for 1.5 hours; firing by using reducing flame, and gradually increasing the temperature of the kiln to 1125 ℃ within 1.5 hours; adding reducing flame, gradually raising the temperature of the kiln to 1180 ℃ within 1.5 hours, and then preserving the temperature for 1.5 hours; and (4) converting the reducing flame into oxidizing flame, slowly cooling for 4 hours until the temperature of the kiln is reduced to 825 ℃, stopping the fire and naturally cooling.
The obtained special-color porcelain moxa glaze material has low fluidity, good stability, uniformity and adhesiveness, the surface of the finished special-color porcelain moxa glaze obtained by firing is soft, the permeability is high, the milky turbidity phenomenon does not exist, the body of the porcelain is fine and compact in texture, the vitrification degree is high, the water absorption rate does not exceed 0.2%, the porcelain body is knocked to have clear and bright sound, the thermal stability is good, the glittering and translucent texture of the colored glaze is strong, the whole glaze surface is uniform and transparent, and the pale yellow cyan and moxa can be well restored to the color of the over-kiln special-color exquisite product.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims (10)

1. A preparation method of a secret porcelain moxa glaze is characterized by comprising the following steps:
collecting initial razor clam mud, elutriating and ball-milling, taking out slurry and drying in the sun to obtain the razor clam mud serving as a raw material;
collecting initial limestone, elutriating and ball-milling, taking out slurry and drying in the sun to obtain raw material limestone;
burning plants to obtain initial plant ash, performing water soaking and alkali removing treatment on the initial plant ash, and drying in the sun to obtain raw material plant ash;
and mixing the raw material razor clam mud, the raw material limestone and the raw material plant ash to obtain the secret porcelain moxa-colored glaze.
2. The method for preparing the secret porcelain moxa glaze according to claim 1, wherein the step of subjecting the initial plant ash to water soaking and alkali removal comprises the steps of putting the initial plant ash into water, fully stirring, filtering and repeating for 10-16 rounds.
3. The method for preparing the secret porcelain ai-color glaze according to claim 1, wherein the mixing ratio of the razor clam mud, the limestone and the plant ash is as follows: 5-8% of the raw material razor clam mud, 14-22% of the raw material limestone and 70-81% of the raw material plant ash by mass percentage.
4. A secret color porcelain ai-color glaze which is prepared based on the preparation method of the secret color porcelain ai-color glaze according to any one of claims 1-3, and is characterized by comprising the following components in percentage by mass: 65 to 78 percent of silicon dioxide, 7 to 13 percent of aluminum oxide, 7 to 12 percent of calcium oxide, 3 to 6 percent of potassium oxide, 3 to 5 percent of phosphorus pentoxide, 1 to 3 percent of ferric oxide, 0.1 to 0.5 percent of sodium oxide, 0.1 to 0.4 percent of magnesium oxide, 0.08 to 0.25 percent of titanium oxide and 0.03 to 0.08 percent of manganese dioxide.
5. A secret color porcelain comprising a blank and the secret color porcelain moxa glaze of claim 4.
6. A method for preparing the secret color porcelain according to claim 5, which comprises the following steps:
blending the secret-color porcelain moxa glaze with water to obtain secret-color porcelain moxa glaze slurry;
carrying out biscuit firing on the blank to obtain a biscuit;
and glazing the biscuit by using the secret-color porcelain moxa glaze slurry, and firing in a kiln to obtain the secret-color porcelain.
7. The method for preparing the secret porcelain according to claim 6, wherein the concentration of the secret porcelain Ehrlich glaze slurry is 48-52 baume degrees.
8. The preparation method of the secret color porcelain according to claim 6, wherein the kiln firing process comprises the following steps:
placing the glazed plain tire into a kiln for firing, and gradually increasing the temperature of the kiln from normal temperature to 525-575 ℃ within 3-5 hours;
continuously firing, gradually increasing the kiln temperature to 950-1000 ℃ within 2-3 hours, and then preserving the heat for 1-2 hours;
firing by using reducing flame, and gradually raising the temperature of the kiln to 1120-1130 ℃ within 1-2 hours;
weighting the reducing flame, gradually raising the temperature of the kiln to 1140-1150 ℃ within 1-2 hours, and then preserving the temperature for 1-2 hours;
and (4) converting the reducing flame into oxidizing flame, slowly cooling for 3-5 hours until the temperature of the kiln is reduced to 800-.
9. The method for preparing the secret porcelain according to claim 6, wherein the firing temperature of the bisque firing is 900-1100 ℃.
10. The method for preparing the secret porcelain according to claim 6, wherein the glazing process comprises the following steps: and carrying out glaze dipping treatment on the green body, carrying out glaze blowing treatment after air drying, and finally naturally air drying, wherein the glaze thickness range after the glaze dipping treatment comprises 0.6-0.8mm, and the glaze thickness range after the glaze blowing treatment comprises 0.7-1 mm.
CN202210721705.7A 2022-06-17 2022-06-17 Secret color porcelain moxa glaze and preparation method thereof, and secret color porcelain and preparation method thereof Pending CN114956562A (en)

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