CN114620991A - Preparation method of Dantu red pottery - Google Patents

Preparation method of Dantu red pottery Download PDF

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CN114620991A
CN114620991A CN202110945985.5A CN202110945985A CN114620991A CN 114620991 A CN114620991 A CN 114620991A CN 202110945985 A CN202110945985 A CN 202110945985A CN 114620991 A CN114620991 A CN 114620991A
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clay
pottery
red
dan
red pottery
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CN114620991B (en
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孙临军
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Rizhao New Ceramic Art Culture Development Co ltd
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    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/04Clay; Kaolin
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    • 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
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606Drying
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567Treatment time
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646Optical properties
    • C04B2235/9661Colour
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
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  • Organic Chemistry (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

The invention discloses a preparation method of red clay red pottery, which belongs to the technical field of red pottery processing, and the method comprises the following steps of weathering, soaking, screening, pugging, blank making, drying, firing and the like.

Description

Preparation method of Dantu red pottery
Technical Field
The invention relates to the technical field of red pottery processing, in particular to a preparation process of high-quality red pottery.
Background
Red pottery is a pottery with red appearance appearing in the age of neolithic stoneware, and the main raw material of the red pottery is clay. The firing principle is as follows: when the ceramic blank is placed into a kiln for roasting, oxidizing flame gas is adopted to convert iron in the ceramic blank into ferric iron, and the surface of the ceramic blank is red. According to the thickness of the pottery body and the sand content, the pottery body can be divided into argillaceous red pottery and sand-sandwiched red pottery; however, although the history of red pottery preparation is long, the overall performance of the existing red pottery cannot meet the requirements of tea set and practical living goods under the existing social conditions due to the problems of pottery clay screening, manufacturing process and firing process in the existing red pottery preparation, and the overall performance of the existing red pottery can only stay at the level of manufacturing a brick and tile flowerpot, so that the red pottery product is positioned at a lower end.
Disclosure of Invention
Because of the poor hardness of the existing red pottery and the strong water permeability, the red pottery is mostly used for manufacturing flowerpots, if the red pottery is used for manufacturing tea sets, the red pottery is cracked due to the poor hardness, and the water with the strong water permeability can easily permeate out of the surface of the kettle body, so that the red pottery can not be used for the tea sets and even the practical living goods, if the red pottery is coated with glaze, although the problem of water permeability can be solved, the process steps can be increased, but also the teapot can lose the air permeability and the water absorbability, so that the tea making effect is greatly reduced, and the existing tea sets mainly comprise purple sand.
The invention provides a preparation method of Dan soil red pottery, which solves the technical problem that the overall performance of the existing red pottery can not meet the requirements of making tea sets and even practical living goods under the existing social conditions; in order to solve the technical problems, the invention provides a preparation method of a Dantu red pottery, which comprises the following steps:
a preparation method of red clay red pottery comprises the following steps:
weathering, naturally weathering the pottery clay for more than 1 year;
soaking, namely soaking the weathered argil in water for more than 100 hours to mix the argil and the water into slurry so as to achieve the effect of cleaning and filtering impurities;
screening, mixing argil and water into slurry, sieving, screening slurry with the fineness of 60-200 meshes, and naturally drying to ensure that the water content reaches the standard required by pugging;
pugging, namely, performing multiple times of pugging on the dried mud, and then placing for over 160 hours for later use so as to ensure that the dried mud is uniform and soft;
blank making, namely performing blank drawing on the slurry subjected to the pugging procedure under the condition that the environmental humidity is 50-70%, and trimming to obtain a green blank;
drying, namely naturally airing the green body for more than 160 hours in an environment with the ambient humidity of more than 50 percent, and then drying the green body;
firing, controlling the dried green body to be sequentially heated at low, medium and high temperatures according to firing heating curves, wherein the firing heating curves are as follows:
heating at low temperature (50-100 deg.C) for 60-180 min;
heating at medium temperature, namely 300-500 ℃ for 200 min;
heating at the high temperature of 1050 ℃ and 500 ℃ for 200 minutes;
and opening the kiln, namely opening the kiln after the temperature in the kiln is reduced to a proper temperature after firing is finished, so as to obtain the clinker blank which can be ground, finished and carved.
Wherein the kaolin as defined herein is red kaolin.
Further, the time for naturally weathering the puddle in the weathering step is 1 to 2 years.
Furthermore, the soaking time of the argil weathered in the soaking step in water is 100-160 hours.
Further, the ratio of pottery clay to water in the soaking step is 2: 1.
Further, naturally drying the screened slurry of 60-200 meshes in the screening process until the water content is 55-65%.
Furthermore, the frequency of pugging the mud after air drying in the pugging procedure is 3-5 times.
Furthermore, the humidity of the environment for drying the green body in the drying process is 50-70%.
Furthermore, the temperature for drying the dried green body in the drying procedure is 95-105 ℃.
Sunshine is the country of Chinese red clay, the clay produced locally is very suitable for firing red pottery, the sunshine clay is the clay produced in the Dan-Tu village of the Wulian county of sunshine, the famous red clay site is located in the China red clay site, the late-stage cultural site of the age of Xinshi utensils in the Dan-Tu site is 4800 years from today, a large amount of well-preserved red pottery is excavated from collapsed soil of a cliff through exploration, so the clay produced locally in sunshine for firing red pottery is also called red clay, and the fired red pottery is also called red clay red pottery.
Further, the argil is sunshine local red argil.
Preferably, the pottery clay is red pottery clay produced in Dantu village, the county of Wulian, sunshine.
Further, the process also comprises a post-treatment process, wherein the post-treatment process comprises the following steps;
and (3) post-treatment technology, namely grinding and finishing the fired cooked blank and then carving and decorating.
Furthermore, the process can be completed manually or by corresponding machines, such as a vibrating screen, a pug mill, a blank drawing machine and the like.
Compared with the prior art, the method has the following technical effects;
1. the red pottery prepared by the method has high mechanical strength, good air permeability and impermeability, and the tea making effect of the red pottery prepared by the method is not primary and secondary to that of purple sand.
2. The density of the red pottery prepared by the method is about 2.3, so that the tea set made by using the method is light and heavy, and the phenomenon that the tea set looks stiff and hard because the tea set is too heavy can be avoided; the texture of the pottery is not lost and the hand feeling of the use is not influenced because the tea set is too light.
3. The manufacturing process of the tea set has no addition and mechanical pollution, all products are not glazed, the natural state is guaranteed, and the tea set is very suitable for manufacturing tea sets and even practical articles for daily use.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present invention.
The clay used in this example was red clay produced in a solar field, and the content of the main substances in the clay is shown in table 1:
Figure DEST_PATH_IMAGE002A
TABLE 1
The first embodiment is as follows: the preparation method of the Dan soil red pottery is characterized by comprising the following steps: the red pottery is prepared by the following steps:
weathering, naturally weathering the pottery clay for 1 year but six months;
soaking, namely soaking the weathered argil in water for 120 hours;
screening, namely mixing argil and water into slurry, screening the slurry with the fineness of 60-200 meshes by using a vibrating screen, and naturally drying the slurry to ensure that the water content of the slurry reaches the standard required by pugging;
pugging, namely pugging the dried mud by a pug mill 3 and then placing for 160 hours for later use;
blank making, namely, performing blank drawing on the slurry subjected to the pugging procedure through a blank drawing machine under the condition that the environmental humidity is 50-70%, and obtaining a green blank after blank trimming;
drying, namely transferring the green body to a cold blank frame, naturally airing the green body for 160 hours in an environment with the ambient humidity of 50-70%, and drying the green body by using a dryer;
firing, controlling the dried green body to be sequentially heated at low, medium and high temperatures according to firing heating curves, wherein the firing heating curves are as follows:
heating at low temperature, i.e. 50-100 deg.C, for 60-180 min;
heating at the medium temperature of 300-500 ℃ for 200 min;
heating at the high temperature of 1050 ℃ and 500 ℃ for 200 minutes;
opening the kiln, namely opening the kiln after the temperature in the kiln is reduced to a proper temperature after firing is finished, so as to obtain a cooked blank which can be subjected to grinding, finishing and carving modification;
and (4) post-treatment, namely treating the fired blank by a finishing machine, and then grinding and finishing by a grinding machine using grinding sand.
And (6) engraving and decorating.
Embodiment 2 and this embodiment adjust and replace some parameters on the basis of embodiment one, and the parameters adjusted are as follows;
the natural weathering time of the pottery clay in the weathering process is 2 years;
soaking the weathered pottery clay in water for 160 hours in the soaking process;
the proportion of the argil to the water in the soaking process is 2: 1; (ii) a
Naturally airing the screened slurry of 60-200 meshes in the screening process until the water content is 55-65%;
in the pugging procedure, the pugging frequency of the dried mud is 4 times;
the environment humidity for drying the green body in the drying process is 50-70%;
the temperature for drying the dried green body in the drying procedure is 95-105 ℃.
The pottery produced in examples 1 and 2 of the present application has the test parameters shown in table 2:
Figure DEST_PATH_IMAGE004
TABLE 2
Through the parameters and multiple tests of the applicant, the density of the red pottery prepared by using the process disclosed by the invention is between 2.2 and 2.35g/cm, so that the tea set made by using the process disclosed by the invention is light and heavy, and the phenomenon that the tea set looks dull and labouring due to the fact that the tea set is too heavy can be avoided; the texture of the pottery is not lost and the hand feeling of the use is not influenced because the tea set is too light. The red pottery product has good mechanical strength when the strength of the red pottery is between 7 and 9MPa, the water absorption rate of the red pottery is between 1.9 and 2.4, and the nature of the red pottery determines that a tea set manufactured by using the red pottery has good air permeability and the problem of water permeation of the tea set can not occur.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The preparation method of the Dan soil red pottery is characterized by comprising the following steps: the red pottery is prepared by the following steps:
weathering, naturally weathering the pottery clay for more than 1 year;
soaking, namely soaking the weathered pottery clay in water for more than 100 hours;
screening, mixing argil and water into slurry, sieving, screening slurry with the fineness of 60-200 meshes, and naturally drying to ensure that the water content reaches the standard required by pugging;
pugging, namely, performing multiple times of pugging on the dried mud, and then placing for more than 160 hours for later use;
blank making, namely performing blank drawing on the slurry subjected to the pugging procedure under the condition that the environmental humidity is 50-70%, and trimming to obtain a green blank;
drying, namely naturally airing the green body for more than 160 hours in an environment with the ambient humidity of more than 50 percent, and then drying the green body;
firing, controlling the dried green bodies to be sequentially heated at low, medium and high temperatures according to firing heating curves, wherein the firing heating curves are as follows:
heating at low temperature, i.e. 50-100 deg.C, for 60-180 min;
heating at the medium temperature of 300-500 ℃ for 200 min;
heating at the high temperature of 1050 ℃ and 500 ℃ for 200 minutes;
and opening the kiln, namely opening the kiln after the temperature in the kiln is reduced to a proper temperature after firing is finished, so as to obtain the clinker blank which can be ground, finished and carved.
2. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the natural weathering time of the pottery clay in the weathering process is 1-2 years.
3. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the soaking time of the weathered pottery clay in water in the soaking step is 100-160 hours.
4. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the ratio of pottery clay to water in the soaking process is 2: 1.
5. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: naturally airing the screened slurry of 60-200 meshes in the screening process until the water content is 55-65%.
6. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the mud refining time of the dried mud is 3-5 times in the mud refining process.
7. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the environment humidity for drying the green body in the drying process is 50-70%.
8. The method for preparing the Dan clay red pottery according to claim 1, which is characterized in that: the temperature for drying the dried green body in the drying procedure is 95-105 ℃.
9. The method for preparing the Dantu red pottery according to any one of claims 1-8, wherein: the pottery clay is red pottery clay produced in sunshine places.
10. The method for preparing the Dan clay red pottery according to claim 9, which is characterized in that: the pottery clay is red pottery clay produced in Dan Tucun of the county of the sunshine Wulian.
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CN111004016A (en) * 2019-12-22 2020-04-14 南宁师范大学 Preparation method of porous ceramic product with Nanning red pottery clay as base material

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