CN112939464B - Ru porcelain light azure glaze and preparation method thereof - Google Patents
Ru porcelain light azure glaze and preparation method thereof Download PDFInfo
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Abstract
The invention provides a Ru porcelain light azure glaze and a preparation method thereof, wherein the Ru porcelain light azure glaze comprises the following raw material components in parts by weight: 38-42 parts of melilite, 9-13 parts of square feldspar, 18-22 parts of black feldspar, 11-15 parts of white feldspar, 0.5-1 part of iron ore, 3-6 parts of quartz stone, 6-10 parts of plant ash, 2-3 parts of talc, 0.8-1.5 parts of agate stone and 0.8-1.2 parts of bovine bone. The light azure glaze prepared by the invention is pure and mild light azure with bluish-blue color in the blue, the enamel is emerald like grease, moist and jade-like, the glaze is bright and smooth, the glaze is provided with fine flake grains, and the glaze is hidden to show a luster which is soft, contains storage, is mild and moist and is similar to ancient jade-like.
Description
Technical Field
The invention relates to the field of Ru porcelain manufacturing, in particular to a Ru porcelain light sky blue glaze and a manufacturing process thereof.
Background
Ru jiao glaze is mainly blue, and comprises azure, egg green, pink green, green bean, light azure, moonlight and sky blue. The most beautiful glaze color of the Ru kiln is a pure, warm and moist light azure with bluish green middle, the enamel is emerald like grease and moist like jade, and the glaze surface is hidden with a luster which is soft, contains storage, warm and moist and is similar to ancient jade.
"Qingbo journal" cloud of Nansong people Zhou 28999: "Ru Yao is prohibited from burning in the palace, and agate is contained as glaze, so it is difficult to choose and withdraw, and sell the product. The embryo quality of the guan Ru kiln is fine and smooth, the embryo bone is hard, the embryo quality is mostly fragrant gray, the glaze color is smooth, the glaze neutralizes agate powder, and the colors of the embryo white, azure, bean green and shrimp green are the most famous and precious. With the gradual and vigorous archaizing process of azure glaze, how to restore the glaze color of other Ru porcelain to the maximum degree is the key point of the research of Ru porcelain makers.
Disclosure of Invention
Compared with the azure glaze which is mild and moist like jade, has strong waxy feeling and grease feeling, is emerald like grease and moist like jade, the glaze surface is hidden with luster which is soft, contains storage, is mild and moist and is similar to ancient jade. Through repeated research and development for many years, the invention provides the Ru porcelain light sky blue glaze and the manufacturing method thereof, and the porcelain with the glaze color close to the ancient Ru porcelain light sky blue glaze can be fired.
The technical scheme of the invention is realized as follows: the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 38-42 parts of melilite, 9-13 parts of square feldspar, 18-22 parts of black feldspar, 11-15 parts of white feldspar, 0.5-1 part of iron ore, 3-6 parts of quartz stone, 6-10 parts of plant ash, 2-3 parts of talc, 0.8-1.5 parts of agate stone and 0.8-1.2 parts of bovine bone.
The technical scheme of the invention can be realized as follows:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 40 parts of melilite, 10 parts of square feldspar, 20 parts of black feldspar, 12 parts of white feldspar, 0.8 part of iron ore, 4.5 parts of quartz stone, 8 parts of plant ash, 2.5 parts of talc, 1.2 parts of agate stone and 1 part of bovine bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after the glaze dipping, and performing glaze repairing and glaze repairing on the parts with glaze flaws;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
Preferably, the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
Preferably, the glaze dipping time in the step eight is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃, and taking 1 to 1.5 hours;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, and when the temperature is raised to 800 ℃, the closing is slightly carried out, and the time is 2 hours to 2.5 hours;
3) raising the temperature from 800 ℃ to 1050 ℃, and keeping the temperature for 2 to 2.5 hours by using forefire;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 4.5 to 6 hours;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
Preferably, the natural cooling time in the step 6) is 12 hours.
The invention has the beneficial effects that: the light azure glaze prepared by the invention is pure and mild light azure with bluish-green and medium bluish-green enamel, the enamel is emerald like grease and moist like jade, the glaze is bright and clear, the glaze is provided with fine and flaky grains, and the glaze is hidden to show a luster which is soft, contains storage, is mild and moist and is similar to the ancient jade.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the present invention in any way, and any modifications or changes which can be easily made by a person skilled in the art without departing from the technical solution of the present invention are within the scope of the claims of the present invention.
Example 1:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 38-42 parts of melilite, 9 parts of square feldspar, 18 parts of black feldspar, 11 parts of white feldspar, 0.5 part of iron ore, 3 parts of quartz stone, 6 parts of plant ash, 2 parts of talc, 0.8 part of agate stone and 0.8 part of bovine bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after glaze dipping, and performing glaze repairing and glaze repairing on the part with glaze and flaw;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The basic implementation mode of the invention can be further improved, perfected and limited on the basis that: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃ and consuming 1 hour;
2) when the temperature reaches 500 ℃, the temperature is raised to 800 ℃ from 500 ℃, and when the temperature is raised to 800 ℃, the furnace is slightly closed, the time is used for 2 hours, the process is an oxidation process, and the oxidation process is to keep the product moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 4.5 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the natural cooling time in the step 6) is 12 hours.
Example 2:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 38-42 parts of melilite, 13 parts of square feldspar, 22 parts of black feldspar, 15 parts of white feldspar, 1 part of iron ore, 6 parts of quartz stone, 10 parts of plant ash, 3 parts of talc, 1.5 parts of agate stone and 1.2 parts of ox bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after glaze dipping, and performing glaze repairing and glaze repairing on the part with glaze and flaw;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃ and consuming 1 hour;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, when the temperature is raised to 800 ℃, the switch is slightly switched on, the time for use is 2 hours, the process is an oxidation process, and the oxidation process is to keep the product warm and moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 4.5 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the natural cooling time in the step 6) is 12 hours.
Example 3:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 40 parts of melilite, 10 parts of square feldspar, 20 parts of black feldspar, 12 parts of white feldspar, 0.8 part of iron ore, 4.5 parts of quartz stone, 8 parts of plant ash, 2.5 parts of talc, 1.2 parts of agate stone and 1 part of bovine bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after glaze dipping, and performing glaze repairing and glaze repairing on the part with glaze and flaw;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) keeping a gap at the kiln door, heating from room temperature to 500 ℃, and taking 1 hour;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, when the temperature is raised to 800 ℃, the switch is slightly switched on, the time for use is 2 hours, the process is an oxidation process, and the oxidation process is to keep the product warm and moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 4.5 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the natural cooling time in the step 6) is 12 hours.
Example 4:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 40 parts of melilite, 11 parts of anorthite, 20 parts of black feldspar, 13 parts of white feldspar, 0.8 part of iron ore, 4.5 parts of quartz stone, 8 parts of plant ash, 2.5 parts of talc, 1.2 parts of agate stone and 1 part of ox bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after glaze dipping, and performing glaze repairing and glaze repairing on the part with glaze and flaw;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃ and consuming 1.5 hours;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, when the temperature is raised to 800 ℃, the switch is slightly switched on, the time is taken for 2.5 hours, the process is an oxidation process, and the oxidation process is to keep the product warm and moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2.5 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 6 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, preserving the heat for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the natural cooling time in the step 6) is 12 hours.
Example 5:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 39 parts of melilite, 10 parts of square feldspar, 19 parts of black feldspar, 12 parts of white feldspar, 0.8 part of iron ore, 4 parts of quartz stone, 7 parts of plant ash, 2.5 parts of talc, 1 part of agate stone and 1 part of ox bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material for later use in the first step, sieving the ground mixed material with a 120-mesh sieve, and removing floating iron in the slurry by using a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after the glaze dipping, and performing glaze repairing and glaze repairing on the parts with glaze flaws;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃ and consuming 1.5 hours;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, when the temperature is raised to 800 ℃, the switch is slightly switched on, the time is taken for 2.5 hours, the process is an oxidation process, and the oxidation process is to keep the product warm and moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2.5 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 6 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The basic implementation mode of the invention can be further improved, perfected and limited on the basis that: the natural cooling time in the step 6) is 12 hours.
Example 6:
the Ru porcelain light azure glaze is prepared from the following raw materials in parts by weight: 41 parts of melilite, 12 parts of square feldspar, 21 parts of black feldspar, 14 parts of white feldspar, 0.8 part of iron ore, 5 parts of quartz stone, 9 parts of plant ash, 2.5 parts of talc, 1.2 parts of agate stone and 1 part of beef bone.
The manufacturing method of the invention comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after the glaze dipping, and performing glaze repairing and glaze repairing on the parts with glaze flaws;
step nine: and putting the blank body in the step eight into a kiln for high-temperature firing, wherein the firing temperature is 1050-1260 ℃, and the firing time is 10-13 hours.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the blanks in the fourth step are Tangkou soil, Fengjinggu soil and kaolin.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: and in the step eight, the glaze dipping time is 1-2 seconds.
In a specific operation, the firing process in the ninth step is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃ and consuming 1.5 hours;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, when the temperature is raised to 800 ℃, the switch is slightly switched on, the time is taken for 2.5 hours, the process is an oxidation process, and the oxidation process is to keep the product warm and moist like jade;
3) raising the temperature from 800 ℃ to 1050 ℃, and preserving the heat for 2.5 hours by using forefire, wherein the process is an oxidation heat preservation process, and the oxidation heat preservation process is also used for keeping the effect of the product like jade like the oxidation process;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 6 hours, wherein the process is a reduction process which is used for better vitrifying a product;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
The above is the basic implementation mode of the invention, and further improvement, perfection and limitation can be made on the basis of the above: the natural cooling time in the step 6) is 12 hours.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solutions of the present invention, and that equivalent substitutes or other modifications made by persons skilled in the art according to the prior art are all included in the spirit and scope of the technical solutions of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A Ru porcelain light sky blue glaze is characterized in that: the composite material comprises the following raw materials in parts by weight: 38-42 parts of melilite, 9-13 parts of square feldspar, 18-22 parts of black feldspar, 11-15 parts of white feldspar, 0.5-1 part of iron ore, 3-6 parts of quartz stone, 6-10 parts of plant ash, 2-3 parts of talc, 0.8-1.5 parts of agate stone and 0.8-1.2 parts of bovine bone, and the preparation method comprises the following steps:
the method comprises the following steps: selecting the materials according to the weight parts, placing the raw materials for oxidation for 3-5 months, removing impurities, crushing into granules, and mixing and proportioning for later use;
step two: finely grinding the mixed material prepared in the step one, sieving the ground mixed material by a 120-mesh sieve, and removing floating iron in the slurry by a magnet to obtain glaze;
step three: measuring the glaze in the second step by using baume, adding water to adjust the glaze concentration to be 50 ° baume in summer and 55 ° baume in winter for later use;
step four: placing the blank in a ventilated place for oxidation for 3-5 months by a shed, pulping and pugging the blank after proportioning, and drawing and forming the blank into a blank for later use;
step five: placing the green body for later use in the fourth step for 1-2 days in summer and 3-4 days in winter, cutting the green body, placing the cut green body in a ventilation place for natural drying, and slightly dipping water with a sponge to polish the surface of the green body for later use;
step six: putting the green body for later use in the fifth step into a kiln for biscuiting, wherein the firing temperature is 800-900 ℃, the firing time is 5-6 hours, naturally cooling after firing, taking out the green body, and preparing for glazing after checking no gross disease;
step seven: uniformly stirring the glaze for later use in the third step, and adjusting the concentration; slightly humidifying and wiping edges and corners of the biscuit by using a writing brush or a hairbrush;
step eight: dipping the biscuit in glaze, naturally drying the biscuit after glaze dipping, and performing glaze repairing and glaze repairing on the glazed and defective part;
step nine: putting the green body obtained in the step eight into a kiln for high-temperature firing, wherein the firing process is as follows:
1) maintaining a gap at the kiln door, heating the kiln door from room temperature to 500 ℃, and taking 1 to 1.5 hours;
2) when the temperature reaches 500 ℃, the kiln door is put on, the temperature is raised from 500 ℃ to 800 ℃, and when the temperature is raised to 800 ℃, the closing is slightly carried out, and the time is 2 hours to 2.5 hours;
3) raising the temperature from 800 ℃ to 1050 ℃, and keeping the temperature for 2 to 2.5 hours by using forefire;
4) switching on to change the interior of the kiln into a reducing atmosphere, gradually heating to 1260 ℃, and carrying out the whole fire-turning reduction process for 4.5 to 6 hours;
5) after the fire-turning reduction process is finished, heat preservation is carried out for 0.5 hour;
6) the brake is pulled to stop fire for natural cooling;
7) when the temperature is reduced to below 200 ℃, the kiln door is opened with a wide slit, when the temperature is reduced to 150 ℃, the kiln door is opened greatly, and when the temperature is reduced to 100 ℃, the kiln can be taken out.
2. The ru china light sky blue glaze according to claim 1, wherein: the composite material comprises the following raw materials in parts by weight: 40 parts of melilite, 10 parts of square feldspar, 20 parts of black feldspar, 12 parts of white feldspar, 0.8 part of iron ore, 4.5 parts of quartz stone, 8 parts of plant ash, 2.5 parts of talc, 1.2 parts of agate stone and 1 part of bovine bone.
3. The ru china light sky blue glaze according to claim 1, wherein: the blank in the fourth step is Tangkou soil, Fengjinggu soil and kaolin.
4. The ru china light sky blue glaze according to claim 1, wherein: and in the step eight, the glaze dipping time is 1-2 seconds.
5. The ru china light sky blue glaze according to claim 1, wherein: the natural cooling time in the step 6) is 12 hours.
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