A one-time glazing colorful kiln-changed glaze and its preparation and use method

Abstract

The present invention discloses a disposable, colorful kiln-changed glaze, and its preparation and use methods. This glaze primarily utilizes the unique high iron content of local wood pit soil, and then introduces titanium dioxide and manganese dioxide. The glaze layer thickness is controlled in conjunction with glazing process parameters, and the kiln firing process is strictly controlled. Under specific high temperatures and time, the iron oxide in the wood pit soil in the glaze reacts with the titanium dioxide and manganese dioxide in the titanium dioxide to form crystals. The crystals react to form different crystal layers at specific temperatures depending on the thickness of the glaze layer. The same product enters the kiln with the same color, but emerges in a variety of different colors! It's like a dazzling display! The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium release. They are technologically advanced and difficult to imitate. The colorful glaze products have been thermally stabilized and show no secondary cracking at temperatures between 180°C and 20°C, meeting national standards.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic preparation, and in particular to a disposable glazing colorful kiln-changed glaze and a preparation and use method thereof. Background Art

[0002] Ceramics are materials and products made from clay as the primary raw material and various natural minerals through pulverization, mixing, shaping, and calcining. Items made from a specific type of clay and fired at high temperatures in specialized kilns are called ceramics. Ceramics is a general term for both pottery and porcelain. The difference between pottery and porcelain lies in the different raw materials and the different temperatures. Adding fire to the pottery-making temperature transforms pottery into porcelain. Pottery is fired at temperatures between 800-1000°C, while porcelain is made from kaolin at 1300-1400°C. Ceramic products come in a wide variety of varieties, and their chemical composition, mineral composition, physical properties, and manufacturing methods often overlap, with no clear boundaries. Therefore, they are difficult to rigidly categorize into a few systems or break down into specific categories. Ceramic products have a history of thousands of years. With the continuous improvement of people's living standards, ceramic products are becoming more diversified. Ceramic products should not only meet people's practical needs but also provide aesthetic enjoyment.

[0003] Kiln-changed glazes are created when objects are fired in a kiln. Due to the oxidation or reduction of various coloring elements contained in the kiln, they produce unexpected glaze effects upon exiting the kiln. Because their appearance is accidental and their forms are unique, and their mechanism is unknown, known only as the result of changes during the kiln firing process, they are called "kiln-changed." The saying "kiln-changed is unparalleled" refers to their unpredictable and unique nature. Kiln-changed glazes create ceramics with stunning forms, offering a truly aesthetic experience. Currently, traditional kiln-changed glazes are produced through multiple glazing processes and repeated firings, resulting in complex preparation and high production costs.

[0004] Our colorful kiln-fired glaze series is a technological upgrade based on traditional kiln-fired ceramic glazes. Through optimized formulas and adjustments, we achieve dazzling, vibrant, and ever-changing effects with a single glazing process and firing! The preparation process is simple, resulting in lower production costs! The potassium feldspar, quartz, limestone, wood pit soil, and calcined talc used in these colorful kiln-fired glazes are all locally sourced. This fully utilizes local resources, significantly reducing the company's production costs. Summary of the Invention

[0005] The purpose of the present invention is: to address the above-mentioned problems, the present invention provides a one-time glazing process and a one-time firing process to achieve a dazzling and colorful, ever-changing effect. The colorful kiln-changed glaze product has a bright glaze surface, good thermal stability, ultra-low lead and cadmium melting, high technical content, and is difficult to imitate, as well as a preparation and use method of the one-time glazing colorful kiln-changed glaze.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a disposable glazing colorful kiln-changed glaze, which is composed of the following components in parts by weight: 8-12 parts of potassium feldspar from Hezhou, Guangxi, 14-16 parts of sodium feldspar from Hubei, 5-7 parts of calcined talc from Wuming, Guangxi, 9-11 parts of kiln-changed special frit, 8-12 parts of limestone from Yulin, Guangxi, 7-9 parts of kaolin from Gaozhou, 6-8 parts of quartz from Lingshan Town, Rong County, Guangxi, 13-17 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 5-7 parts of titanium dioxide, 7-9 parts of calcined zinc oxide, and 4-6 parts of manganese dioxide;

[0008] The potassium feldspar in Hezhou, Guangxi is potassium feldspar produced in Hezhou City, Guangxi; the sodium feldspar in Hubei is sodium feldspar produced in Hubei; the calcined talc in Wuming, Guangxi is calcined talc produced in Wuming District, Nanning City, Guangxi; the limestone in Yulin, Guangxi is limestone produced in Yulin City, Guangxi; the kaolin in Gaozhou is kaolin produced in Gaozhou City, Guangdong; the quartz in Lingshan Town, Rong County, Guangxi is quartz produced in Lingshan Town, Rong County, Yulin City, Guangxi; the wood pit soil in Lingshan Town, Rong County, Guangxi is wood pit soil produced in Lingshan Town, Rong County, Yulin City, Guangxi.

[0009] Furthermore, a disposable glazed colorful kiln-changed glaze is provided, which is composed of the following components in parts by weight: 9-12 parts of potassium feldspar from Hezhou, Guangxi, 14.5-16 parts of sodium feldspar from Hubei, 5.5-7 parts of calcined talc from Wuming, Guangxi, 9.5-11 parts of kiln-changed special frit, 9-12 parts of limestone from Yulin, Guangxi, 7.5-9 parts of kaolin from Gaozhou, 6.5-8 parts of quartz from Lingshan Town, Rong County, Guangxi, 14-17 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 5.5-7 parts of titanium dioxide, 7.5-9 parts of calcined zinc oxide, and 4.5-6 parts of manganese dioxide.

[0010] Furthermore, a disposable glazed colorful kiln-changed glaze is provided, which is composed of the following components in parts by weight: 10 parts of potassium feldspar from Hezhou, Guangxi, 15 parts of sodium feldspar from Hubei, 6 parts of calcined talc from Wuming, Guangxi, 10 parts of kiln-changed special frit, 10 parts of limestone from Yulin, Guangxi, 8 parts of kaolin from Gaozhou, 7 parts of quartz from Lingshan Town, Rong County, Guangxi, 15 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 6 parts of titanium dioxide, 8 parts of calcined zinc oxide, and 5 parts of manganese dioxide.

[0011] Furthermore, a disposable glazed colorful kiln-changed glaze glaze, the chemical composition of the disposable glazed colorful kiln-changed glaze glaze is composed of the following mass percentages: 62.31% silicon oxide, 12.19% aluminum oxide, 3.23% iron oxide, 6.03% titanium dioxide, 7.02% calcium oxide, 3.35% magnesium oxide, 3.95% potassium oxide, 3.12% sodium oxide, 5% zinc oxide, and 0.27% ignition loss.

[0012] Furthermore, the chemical composition of the potassium feldspar in Hezhou, Guangxi is as follows: 69.08% silicon oxide, 17.63% aluminum oxide, 0.12% iron oxide, 0.01% titanium dioxide, 0.51% calcium oxide, 0.13% magnesium oxide, 10.25% potassium oxide, 2.21% sodium oxide, and 0.06% loss on ignition.

[0013] The chemical composition of the Hubei sodium feldspar is as follows: silicon oxide 70.43%, aluminum oxide 17.12%, iron oxide 0.10%, titanium dioxide 0.02%, calcium oxide 0.41%, magnesium oxide 0.17%, potassium oxide 1.25%, sodium oxide 10.45%, and ignition loss 0.05%.

[0014] The chemical composition of the Guangxi Wuming calcined talc is as follows: 64.05% silicon oxide, 0.12% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 5.16% calcium oxide, 30.15% magnesium oxide, 0.16% potassium oxide, 0.18% sodium oxide, and 0.11% loss on ignition.

[0015] The chemical composition of the Guangxi Yulin limestone is as follows: 2.1% silicon oxide, 0.15% aluminum oxide, 0.06% iron oxide, 0.01% titanium dioxide, 56.17% calcium oxide, 0.03% magnesium oxide, 0.11% potassium oxide, 0.09% sodium oxide, and ignition loss is 41.5%.

[0016] The chemical composition of the quartz in Lingshan Town, Rong County, Guangxi Province is as follows: 98.5% silicon oxide, 0.35% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 0.26% calcium oxide, 0.06% magnesium oxide, 0.26% potassium oxide, 0.37% sodium oxide, and 0.23% ignition loss.

[0017] The chemical composition of Gaozhou kaolin is as follows: 53.57% silicon oxide, 35.5% aluminum oxide, 0.15% iron oxide, 0.03% titanium dioxide, 0.17% calcium oxide, 0.06% magnesium oxide, 0.21% potassium oxide, 0.15% sodium oxide, and 10.16% loss on ignition.

[0018] The chemical composition of the Mujiao soil in Lingshan Town, Rong County, Guangxi Province is as follows: 64.86% silicon oxide, 7.52% aluminum oxide, 21.12% iron oxide, 1.56% titanium dioxide, 0.11% calcium oxide, 0.02% magnesium oxide, 1.21% potassium oxide, 0.45% sodium oxide, and 3.15% loss on ignition.

[0019] Furthermore, the chemical composition of the calcined zinc oxide is as follows: 99.5% zinc oxide and 0.5% other components by weight.

[0020] The present invention also provides a method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0021] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0022] 2) The mixed raw materials of the colorful kiln-changed glaze are placed in a wet ball mill for ball milling, the slurry is discharged, and the glaze is passed through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08-0.1wt% on the 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze.

[0023] The present invention also provides a method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0024] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0025] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0026] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, controlling the glazing time to be 4 to 5 seconds, using the one-time glazing colorful kiln-changed glaze as the glaze, and wiping the glaze foot of the glaze blank to obtain a glazed blank;

[0027] (4) Check the appearance of the glaze blank;

[0028] (5) The glaze blanks without any defects in appearance can be sent to the firing process; the firing temperature is controlled at 1250-1280°C, in an oxidizing atmosphere, and the firing cycle is 10 hours.

[0029] Furthermore, the concentration of the one-time glazing colorful kiln-changed glaze in step (3) is controlled at 50 to 52 degrees Baume, and the thickness of the glaze layer is controlled at 0.4 to 0.6 mm.

[0030] Furthermore, the firing control of the colorful kiln-changed glaze in step (5) is as follows: 1) the low temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480°C, and the holding time is 1.8-2.0h; 2) the first medium temperature stage is the low oxidation stage, the kiln temperature is 800-870°C, and the holding time is 2.1-2.2h; 3) the second medium temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050°C, and the holding time is 3.2-3 .5h; 4) The high temperature stage is the stage of product kiln transformation, crystallization and porcelain formation, the kiln temperature is 1250-1280℃, and the holding time is 1.5-2.0h; 5) The rapid cooling stage is the key stage of product kiln transformation and crystallization control, the kiln temperature is 1280-800℃, and the holding time is 1.2-1.5h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.6-2.0h; 7) Natural cooling to complete the firing process.

[0031] The present invention discloses a disposable, colorful kiln-changed glaze and its preparation and use methods. Based on traditional ceramic kiln-changed glazes, the technology and process have been upgraded. Through formula optimization and combination debugging, a dazzling, colorful, and ever-changing effect can be achieved using only a one-time glazing process and a single firing! The preparation process is simple and the production cost is lower! The potassium feldspar, quartz, limestone, wood pit soil, and calcined talc used in the colorful kiln-changed glaze are all locally produced. This fully utilizes local resources and can further significantly reduce the company's production costs. The present invention primarily utilizes the unique high iron content of local wood pit soil, and then introduces titanium dioxide and manganese dioxide. The thickness of the glaze layer is controlled by combining glazing process parameters and strictly controlling the kiln firing process. Under specific high temperatures and time, the iron oxide in the wood pit soil in the glaze reacts with the titanium dioxide and manganese dioxide in the titanium dioxide to crystallize. The crystal spots react with different crystal layers at specific temperatures depending on the thickness of the glaze layer. The same product, with the same color, enters the kiln and comes out of the kiln with a variety of colors! Just like a dazzling color! Colorful kiln-fired glaze products feature a bright glaze surface, excellent thermal stability, and ultra-low lead and cadmium release, making them difficult to imitate. Thermal stability testing has shown that these colorful glazes exhibit no secondary cracking at temperatures between 180°C and 20°C, meeting national standards.

[0032] The present invention provides a disposable glazed colorful kiln-changed glaze and a preparation and use method thereof. The firing of the colorful kiln-changed glaze series products sequentially goes through a low-temperature stage, a first medium-temperature stage, a second medium-temperature stage, a high-temperature stage, a rapid cooling stage, and natural cooling. The kiln firing process is strictly controlled. Under a specific high temperature and time, the iron oxide in the wood cellar soil in the glaze reacts with the titanium dioxide and manganese dioxide in the titanium dioxide to crystallize. The crystal spots react to different crystal layers at a specific temperature depending on the thickness of the glaze layer. The same product with the same color enters the kiln, and changes in various colors when it comes out of the kiln, just like a dazzling color. The colorful kiln-changed glaze series products have a higher yield.

[0033] Figures in the specification

[0034] Figure 1 This is a product usage effect diagram of the disposable glazing colorful kiln-changed glaze in Example 1 of the present invention;

[0035] Figure 2 This is a product usage effect diagram of the disposable glazing colorful kiln-changed glaze in Example 2 of the present invention;

[0036] Figure 3 This is a product usage effect diagram of the disposable glazing colorful kiln-changed glaze in Example 3 of the present invention;

[0037] Figure 4 This is a product usage effect diagram of the disposable glazing colorful kiln-changed glaze in Example 4 of the present invention;

[0038] Figure 5 This is a product usage effect diagram of the disposable glazing colorful kiln-changed glaze in Example 5 of the present invention. DETAILED DESCRIPTION

[0039] The present invention discloses a one-time glazing colorful kiln-changed glaze and a preparation and use method thereof. The potassium feldspar of Hezhou, Guangxi is potassium feldspar produced in Hezhou, Guangxi; the sodium feldspar of Hubei is sodium feldspar produced in Hubei; the calcined talc of Wuming, Guangxi is calcined talc produced in Wuming District, Nanning, Guangxi; the limestone of Yulin, Guangxi is limestone produced in Yulin, Guangxi; the kaolin of Gaozhou is kaolin produced in Gaozhou, Guangdong; the quartz of Lingshan Town, Rong County, Guangxi is quartz produced in Lingshan Town, Rong County, Yulin, Guangxi; the wood pit soil of Lingshan Town, Rong County, Guangxi is wood pit soil produced in Lingshan Town, Rong County, Yulin, Guangxi;

[0040] The chemical composition of the one-time glazing colorful kiln-changed glaze is as follows: 62.31% silicon oxide, 12.19% aluminum oxide, 3.23% iron oxide, 6.03% titanium dioxide, 7.02% calcium oxide, 3.35% magnesium oxide, 3.95% potassium oxide, 3.12% sodium oxide, 5% zinc oxide, and 0.27% ignition loss.

[0041] The chemical composition of the Guangxi Hezhou potassium feldspar is as follows: 69.08% silicon oxide, 17.63% aluminum oxide, 0.12% iron oxide, 0.01% titanium dioxide, 0.51% calcium oxide, 0.13% magnesium oxide, 10.25% potassium oxide, 2.21% sodium oxide, and 0.06% loss on ignition.

[0042] The chemical composition of the Hubei sodium feldspar is as follows: silicon oxide 70.43%, aluminum oxide 17.12%, iron oxide 0.10%, titanium dioxide 0.02%, calcium oxide 0.41%, magnesium oxide 0.17%, potassium oxide 1.25%, sodium oxide 10.45%, and ignition loss 0.05%.

[0043] The chemical composition of the Guangxi Wuming calcined talc is as follows: 64.05% silicon oxide, 0.12% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 5.16% calcium oxide, 30.15% magnesium oxide, 0.16% potassium oxide, 0.18% sodium oxide, and 0.11% loss on ignition.

[0044] The chemical composition of the Guangxi Yulin limestone is as follows: 2.1% silicon oxide, 0.15% aluminum oxide, 0.06% iron oxide, 0.01% titanium dioxide, 56.17% calcium oxide, 0.03% magnesium oxide, 0.11% potassium oxide, 0.09% sodium oxide, and ignition loss is 41.5%.

[0045] The chemical composition of the quartz in Lingshan Town, Rong County, Guangxi Province is as follows: 98.5% silicon oxide, 0.35% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 0.26% calcium oxide, 0.06% magnesium oxide, 0.26% potassium oxide, 0.37% sodium oxide, and 0.23% ignition loss.

[0046] The chemical composition of Gaozhou kaolin is as follows: 53.57% silicon oxide, 35.5% aluminum oxide, 0.15% iron oxide, 0.03% titanium dioxide, 0.17% calcium oxide, 0.06% magnesium oxide, 0.21% potassium oxide, 0.15% sodium oxide, and 10.16% loss on ignition.

[0047] The chemical composition of the wood pit soil in Lingshan Town, Rong County, Guangxi Province is as follows: 64.86% silicon oxide, 7.52% aluminum oxide, 21.12% iron oxide, 1.56% titanium dioxide, 0.11% calcium oxide, 0.02% magnesium oxide, 1.21% potassium oxide, 0.45% sodium oxide, and ignition loss of 3.15%.

[0048] The chemical composition of the calcined zinc oxide is as follows: 99.5% zinc oxide and 0.5% other components by weight.

[0049] Any feature disclosed in this specification (including any appended claims and abstract), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0050] Example 1:

[0051] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze comprising the following components in parts by weight: 8 kg of potassium feldspar from Hezhou, Guangxi, 14 kg of sodium feldspar from Hubei, 5 kg of calcined talc from Wuming, Guangxi, 9 kg of kiln-changed frit, 8 kg of limestone from Yulin, Guangxi, 7 kg of kaolin from Gaozhou, 6 kg of quartz from Lingshan Town, Rong County, Guangxi, 13 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 5 kg of titanium dioxide, 7 kg of calcined zinc oxide, and 4 kg of manganese dioxide;

[0052] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0053] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0054] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0055] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0056] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0057] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0058] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled within 4 seconds, the glaze used for glazing being the one-time glazing colorful kiln-changed glaze, and wiping the glaze foot of the glaze blank to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 50 degrees Baume, and the thickness of the glaze layer is controlled at 0.4 mm;

[0059] (4) Check the appearance of the glaze blank;

[0060] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.8h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.1h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.2h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.5h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.2h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.6h; 7) Natural cooling, the firing process is completed.

[0061] The above-mentioned disposable glazing colorful kiln-changed glaze is used for glazing. After firing, the qualified products achieve a dazzling and colorful effect with ever-changing effects. The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium melting. The qualified colorful glaze products prepared in this embodiment have been tested for thermal stability: they do not crack twice at 180℃-20℃, which meets national standards.

[0062] Example 2:

[0063] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze comprising the following components in parts by weight: 12 kg of potassium feldspar from Hezhou, Guangxi, 16 kg of sodium feldspar from Hubei, 7 kg of calcined talc from Wuming, Guangxi, 11 kg of kiln-changed frit, 12 kg of limestone from Yulin, Guangxi, 9 kg of kaolin from Gaozhou, 8 kg of quartz from Lingshan Town, Rong County, Guangxi, 17 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 7 kg of titanium dioxide, 9 kg of calcined zinc oxide, and 6 kg of manganese dioxide;

[0064] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0065] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0066] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0067] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0068] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0069] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0070] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled within 5 seconds, the glaze used for glazing being the one-time glazing colorful kiln-changed glaze, and wiping the glaze foot of the glaze blank to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 52 degrees Baume, and the thickness of the glaze layer is controlled at 0.6 mm;

[0071] (4) Check the appearance of the glaze blank;

[0072] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 2.0h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.2h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.5h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 2.0h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.5h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 2.0h; 7) Natural cooling can complete the firing process.

[0073] The above-mentioned disposable glazing colorful kiln-changed glaze is used for glazing. After firing, the qualified products achieve a dazzling and colorful effect with ever-changing effects. The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium melting. The qualified colorful glaze products prepared in this embodiment have been tested for thermal stability: they do not crack twice at 180℃-20℃, which meets national standards.

[0074] Example 3:

[0075] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze consisting of the following components in parts by weight: 9 kg of potassium feldspar from Hezhou, Guangxi, 14.5 kg of sodium feldspar from Hubei, 5.5 kg of calcined talc from Wuming, Guangxi, 9.5 kg of kiln-changed frit, 9 kg of limestone from Yulin, Guangxi, 7.5 kg of kaolin from Gaozhou, 6.5 kg of quartz from Lingshan Town, Rong County, Guangxi, 14 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 5.5 kg of titanium dioxide, 7.5 kg of calcined zinc oxide, and 4.5 kg of manganese dioxide;

[0076] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0077] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0078] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0079] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0080] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0081] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0082] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0083] (4) Check the appearance of the glaze blank;

[0084] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.9h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.1h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.3h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.7h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.3h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.7h; 7) Natural cooling can complete the firing process.

[0085] The above-mentioned disposable glazing colorful kiln-changed glaze is used for glazing. After firing, the qualified products achieve a dazzling and colorful effect with ever-changing effects. The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium melting. The qualified colorful glaze products prepared in this embodiment have been tested for thermal stability: they do not crack twice at 180℃-20℃, which meets national standards.

[0086] Example 4:

[0087] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze comprising the following components in parts by weight: 10 kg of potassium feldspar from Hezhou, Guangxi, 15 kg of sodium feldspar from Hubei, 6 kg of calcined talc from Wuming, Guangxi, 10 kg of kiln-changed frit, 10 kg of limestone from Yulin, Guangxi, 8 kg of kaolin from Gaozhou, 7 kg of quartz from Lingshan Town, Rong County, Guangxi, 15 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 6 kg of titanium dioxide, 8 kg of calcined zinc oxide, and 5 kg of manganese dioxide;

[0088] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0089] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0090] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0091] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0092] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0093] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0094] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0095] (4) Check the appearance of the glaze blank;

[0096] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.9h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.2h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.3h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.7h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.3h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.8h; 7) Natural cooling can complete the firing process.

[0097] The above-mentioned disposable glazing colorful kiln-changed glaze is used for glazing. After firing, the qualified products achieve a dazzling and colorful effect with ever-changing effects. The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium melting. The qualified colorful glaze products prepared in this embodiment have been tested for thermal stability: they do not crack twice at 180℃-20℃, which meets national standards.

[0098] Example 5:

[0099] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze comprising the following components in parts by weight: 10 kg of potassium feldspar from Hezhou, Guangxi, 15 kg of sodium feldspar from Hubei, 6 kg of calcined talc from Wuming, Guangxi, 10 kg of kiln-changed frit, 10 kg of limestone from Yulin, Guangxi, 8 kg of kaolin from Gaozhou, 7 kg of quartz from Lingshan Town, Rong County, Guangxi, 15 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 6 kg of titanium dioxide, 8 kg of calcined zinc oxide, and 5 kg of manganese dioxide;

[0100] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0101] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0102] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0103] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0104] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0105] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0106] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0107] (4) Check the appearance of the glaze blank;

[0108] (5) The glaze blanks without defects in appearance can be sent to the firing process; the firing temperature is controlled at 1250-1280℃, in an oxidizing atmosphere, and the firing cycle is 10 hours; there is no firing control for specific colorful kiln-changed glazes.

[0109] The above-mentioned disposable glazing colorful kiln-changed glaze is used for glazing. After firing, the qualified products achieve a dazzling and colorful effect with ever-changing effects. The colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium melting. The qualified colorful glaze products prepared in this embodiment have been tested for thermal stability: they do not crack twice at 180℃-20℃, which meets national standards.

[0110] Comparative Example 1:

[0111] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze consisting of the following components in parts by weight: 10 kg of potassium feldspar from Hezhou, Guangxi, 15 kg of sodium feldspar from Hubei, 6 kg of calcined talc from Wuming, Guangxi, 10 kg of kiln-changed frit, 10 kg of limestone from Yulin, Guangxi, 8 kg of kaolin from Gaozhou, 7 kg of quartz from Lingshan Town, Rong County, Guangxi, 15 kg of clay, 6 kg of titanium dioxide, 8 kg of calcined zinc oxide, and 5 kg of manganese dioxide;

[0112] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0113] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0114] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0115] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0116] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0117] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0118] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0119] (4) Check the appearance of the glaze blank;

[0120] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.9h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.2h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.3h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.7h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.3h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.8h; 7) Natural cooling can complete the firing process.

[0121] Comparative Example 2

[0122] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze consisting of the following components in parts by weight: 10 kg of potassium feldspar, 15 kg of sodium feldspar, 6 kg of calcined talc, 10 kg of kiln-changed special frit, 10 kg of limestone, 8 kg of kaolin, 7 kg of quartz, 15 kg of clay, 6 kg of titanium dioxide, 8 kg of calcined zinc oxide, and 5 kg of manganese dioxide;

[0123] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0124] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0125] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0126] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0127] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0128] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0129] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0130] (4) Check the appearance of the glaze blank;

[0131] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.9h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.2h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.3h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.7h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.3h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.8h; 7) Natural cooling can complete the firing process.

[0132] Comparative Example 3

[0133] A disposable glazing colorful kiln-changed glaze, the disposable glazing colorful kiln-changed glaze comprising the following components in parts by weight: 10 kg of potassium feldspar, 15 kg of sodium feldspar, 6 kg of cooked talc, 10 kg of kiln-changed special frit, 10 kg of limestone, 8 kg of kaolin, 7 kg of quartz, 15 kg of wood pit soil from Lingshan Town, Rong County, Guangxi, 6 kg of titanium dioxide, 8 kg of calcined zinc oxide, and 5 kg of manganese dioxide;

[0134] A method for preparing a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0135] 1) According to the formula of the disposable glaze colorful kiln-changed glaze, the components constituting the disposable glaze colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material;

[0136] 2) placing the mixed raw materials of the colorful kiln-changed glaze into a wet ball mill, grinding the mixture, discharging the slurry, and passing the mixture through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08 and 0.1 wt % on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze;

[0137] A method for using a one-time glazing colorful kiln-changed glaze, comprising the following steps:

[0138] (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank;

[0139] (2) replenishing water at the foot of the trimmed blank to obtain a replenished blank;

[0140] (3) performing a one-time glazing of the inner and outer surfaces of the water-replenished blank, the glazing time being controlled at 4.5 seconds, the glaze used for glazing is the one-time glazing colorful kiln-changed glaze, and the glaze foot of the glaze blank is wiped clean to obtain a glazed blank; the concentration of the one-time glazing colorful kiln-changed glaze is controlled at 51 degrees Baume, and the thickness of the glaze layer is controlled at 0.5 mm;

[0141] (4) Check the appearance of the glaze blank;

[0142] (5) The glaze blanks with no defects in appearance can be sent to the firing process; Firing control of colorful kiln-fired glaze: 1) The low-temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480℃, and the holding time is 1.9h; 2) The first medium-temperature stage is the low-oxidation stage, the kiln temperature is 800-870℃, and the holding time is 2.2h; 3) The second medium-temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050℃, and the holding time is 3.3h; 4) The high-temperature stage is the product kiln-fired crystallization and porcelain-forming stage, the kiln temperature is 1250-1280℃, and the holding time is 1.7h; 5) The rapid cooling stage is the key stage for controlling the kiln-fired crystallization of the product, the kiln temperature is 1280-800℃, and the holding time is 1.3h; 6) The product slow cooling stage, the kiln temperature is 800-580℃, and the holding time is 1.8h; 7) Natural cooling can complete the firing process.

[0143] The test results of the products of Examples 1-5 and Comparative Examples 1-3 are shown in Table 1 below:

[0144] Table 1

[0145]

[0146]

[0147] It can be seen from the product test results of Examples 1-5 and Comparative Examples 1-3 that it is difficult to produce a qualified series of colorful kiln-changed glaze products that are as colorful as the ones in the formula of the colorful kiln-changed glaze by arbitrarily changing any one or several components. It can be seen that the present application aims to achieve: technical and process transformation and upgrading based on the traditional ceramic kiln-changed glaze, and through formula optimization and combination debugging, only a one-time glazing process and a one-time firing can be used to achieve a colorful and ever-changing effect! The inventors of the present application have made creative efforts. The preparation process of the present application is simpler, does not require multiple glazing or multiple firings, and has lower production costs! The materials such as potassium feldspar, quartz, limestone, wood pit soil and calcined talc used in the colorful kiln-changed glaze are all locally produced. Making full use of local resources can further significantly reduce the company's production costs. This invention primarily utilizes the unique high iron content of local wood pit soil, then introduces titanium dioxide and manganese dioxide. By combining glazing process parameters to control glaze thickness and strictly controlling the kiln firing process, the iron oxide in the wood pit soil reacts with the titanium dioxide and manganese dioxide in the titanium dioxide to form crystals at a specific high temperature and time. The crystals react to form different crystal layers at specific temperatures depending on the thickness of the glaze layer. The same product enters the kiln with the same color, but emerges in a variety of different colors! It's like a dazzling display of colors! Colorful kiln-changed glaze products have a bright glaze surface, good thermal stability, and ultra-low lead and cadmium release. They are technologically advanced and difficult to imitate. The colorful glaze products have been tested for thermal stability: they will not crack twice at 180℃-20℃, which meets national standards; the firing of the colorful kiln-changed glaze series products goes through the low-temperature stage, the first medium-temperature stage, the second medium-temperature stage, the high-temperature stage, the rapid cooling stage, and natural cooling in sequence. The kiln firing process is strictly controlled. Under specific high temperatures and time, the iron oxide in the wood cellar soil in the glaze reacts with the titanium dioxide and manganese dioxide in the titanium dioxide to crystallize. The crystal spots reflect different crystal layers at a specific temperature as the thickness of the glaze layer. The same product and the same color enter the kiln, and change when it comes out of the kiln, just like a dazzling color. The colorful kiln-changed glaze series products have a higher yield.

[0148] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A one-time glazing colorful kiln-changed glaze, characterized in that: The one-time glazing colorful kiln-changed glaze is composed of the following components in parts by weight: 8-12 parts of potassium feldspar from Hezhou, Guangxi, 14-16 parts of sodium feldspar from Hubei, 5-7 parts of calcined talc from Wuming, Guangxi, 9-11 parts of kiln-changed special frit, 8-12 parts of limestone from Yulin, Guangxi, 7-9 parts of kaolin from Gaozhou, 6-8 parts of quartz from Lingshan Town, Rong County, Guangxi, 13-17 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 5-7 parts of titanium dioxide, 7-9 parts of calcined zinc oxide, and 4-6 parts of manganese dioxide. The potassium feldspar of Hezhou, Guangxi is potassium feldspar produced in Hezhou, Guangxi; the solitary feldspar of Hubei is solitary feldspar produced in Hubei; the calcined talc of Wuming, Guangxi is calcined talc produced in Wuming District, Nanning, Guangxi; the limestone of Yulin, Guangxi is limestone produced in Yulin, Guangxi; the kaolin of Gaozhou is kaolin produced in Gaozhou, Guangdong; the quartz of Lingshan Town, Rong County, Guangxi is quartz produced in Lingshan Town, Rong County, Yulin, Guangxi; the wood pit soil of Lingshan Town, Rong County, Guangxi is wood pit soil produced in Lingshan Town, Rong County, Yulin, Guangxi; The firing temperature of the one-time glazing colorful kiln-changed glaze is controlled at 1250-1280° C., in an oxidizing atmosphere, and the firing period is 10 hours.

2. The disposable glazing colorful kiln-changed glaze according to claim 1, characterized in that: The disposable glazing colorful kiln-changed glaze is composed of the following components in parts by weight: 9-12 parts of potassium feldspar from Hezhou, Guangxi, 14.5-16 parts of sodium feldspar from Hubei, 5.5-7 parts of calcined talc from Wuming, Guangxi, 9.5-11 parts of kiln-changed special frit, 9-12 parts of limestone from Yulin, Guangxi, 7.5-9 parts of kaolin from Gaozhou, 6.5-8 parts of quartz from Lingshan Town, Rong County, Guangxi, 14-17 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 5.5-7 parts of titanium dioxide, 7.5-9 parts of calcined zinc oxide, and 4.5-6 parts of manganese dioxide.

3. The disposable glazing colorful kiln-changed glaze according to claim 1, characterized in that: The disposable glazing colorful kiln-fired glaze is composed of the following components in parts by weight: 10 parts of potassium feldspar from Hezhou, Guangxi, 15 parts of sodium feldspar from Hubei, 6 parts of calcined talc from Wuming, Guangxi, 10 parts of kiln-fired special frit, 10 parts of limestone from Yulin, Guangxi, 8 parts of kaolin from Gaozhou, 7 parts of quartz from Lingshan Town, Rong County, Guangxi, 15 parts of wood pit soil from Lingshan Town, Rong County, Guangxi, 6 parts of titanium dioxide, 8 parts of calcined zinc oxide, and 5 parts of manganese dioxide.

4. The disposable glazing colorful kiln-changed glaze according to claim 1, characterized in that: The chemical composition of the Guangxi Hezhou potassium feldspar is as follows: 69.08% silicon oxide, 17.63% aluminum oxide, 0.12% iron oxide, 0.01% titanium dioxide, 0.51% calcium oxide, 0.13% magnesium oxide, 10.25% potassium oxide, 2.21% sodium oxide, and 0.06% loss on ignition. The chemical composition of Hubei albite is as follows: 70.43% silicon oxide, 17.12% aluminum oxide, 0.10% iron oxide, 0.02% titanium dioxide, 0.41% calcium oxide, 0.17% magnesium oxide, 1.25% potassium oxide, 10.45% sodium oxide, and 0.05% loss on ignition. The chemical composition of the Guangxi Wuming calcined talc is as follows: 64.05% silicon oxide, 0.12% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 5.16% calcium oxide, 30.15% magnesium oxide, 0.16% potassium oxide, 0.18% sodium oxide, and 0.11% loss on ignition. The chemical composition of the Guangxi Yulin limestone is as follows: 2.1% silicon oxide, 0.15% aluminum oxide, 0.06% iron oxide, 0.01% titanium dioxide, 56.17% calcium oxide, 0.03% magnesium oxide, 0.11% potassium oxide, 0.09% sodium oxide, and a loss on ignition of 41.5%. The chemical composition of the quartz from Lingshan Town, Rong County, Guangxi Province is as follows: 98.5% silicon oxide, 0.35% aluminum oxide, 0.05% iron oxide, 0.02% titanium dioxide, 0.26% calcium oxide, 0.06% magnesium oxide, 0.26% potassium oxide, 0.37% sodium oxide, and 0.23% loss on ignition. The chemical composition of Gaozhou kaolin is as follows: 53.57% silicon oxide, 35.5% aluminum oxide, 0.15% iron oxide, 0.03% titanium dioxide, 0.17% calcium oxide, 0.06% magnesium oxide, 0.21% potassium oxide, 0.15% sodium oxide, and 10.16% loss on ignition. The chemical composition of the Mujiao soil in Lingshan Town, Rong County, Guangxi Province is as follows: 64.86% silicon oxide, 7.52% aluminum oxide, 21.12% iron oxide, 1.56% titanium dioxide, 0.11% calcium oxide, 0.02% magnesium oxide, 1.21% potassium oxide, 0.45% sodium oxide, and 3.15% loss on ignition.

5. The disposable glazing colorful kiln-changed glaze according to claim 1, characterized in that: The chemical composition of the calcined zinc oxide is as follows: 99.5% zinc oxide and 0.5% other components by weight.

6. The method for preparing a one-time glazing colorful kiln-changed glaze according to any one of claims 1 to 5, characterized in that: The following steps are involved: 1) According to the formula of the disposable colorful kiln-changed glaze, the components constituting the disposable colorful kiln-changed glaze are weighed to obtain a colorful kiln-changed glaze mixed raw material; 2) The mixed raw materials of the colorful kiln-changed glaze are placed in a wet ball mill for ball milling, the slurry is discharged, and the mixture is passed through a 150-mesh sieve. The fineness of the colorful kiln-changed glaze is controlled to be between 0.08-0.1 wt% on a 10,000-mesh sieve, thereby obtaining the disposable glazing colorful kiln-changed glaze.

7. A method for using a disposable glazing colorful kiln-changed glaze according to any one of claims 1 to 5, characterized in that: The following steps are involved: (1) Repair the dry blank, blow away the dust on the blank, and obtain the trimmed blank; (2) Rehydrating the foot of the trimmed blank to obtain a rehydrated blank; (3) The water-replenished blank is dipped in glaze inside and outside at one time, and the dipping time is controlled within 4 to 5 seconds. The glaze used for dipping is the one-time glazing colorful kiln-changed glaze. The glaze foot of the glaze blank is wiped clean to obtain a dipped glaze blank; (4) Check the appearance of the glaze blank; (5) The glaze blanks without any defects in appearance can be sent to the firing process.

8. The method for using the disposable colorful kiln-changed glaze according to claim 7, characterized in that: The concentration of the one-time glazing colorful kiln-changed glaze in step (3) is controlled at 50 to 52 degrees Baume, and the thickness of the glaze layer is controlled at 0.4 to 0.6 mm.

9. The method for using the disposable colorful kiln-changed glaze according to claim 7, characterized in that: The firing control of the colorful kiln-changed glaze in step (5) is as follows: 1) the low temperature stage is the preheating stage of the glaze blank, the kiln temperature is 350-480°C, and the holding time is 1.8-2.0h; 2) the first medium temperature stage is the low oxidation stage, the kiln temperature is 800-870°C, and the holding time is 2.1-2.2h; 3) the second medium temperature stage is the strong oxidation pre-crystallization stage, the kiln temperature is 980-1050°C, and the holding time is 3.2-3.5h ; 4) The high temperature stage is the stage of product kiln transformation crystallization into porcelain, the kiln temperature is 1250~1280℃, and the holding time is 1.5~2.0h; 5) The rapid cooling stage is the key stage of product kiln transformation crystallization control, the kiln temperature is 1280~800℃, and the cooling time is 1.2~1.5h; 6) The product slow cooling stage, the kiln temperature is 800~580℃, and the cooling time is 1.6~2.0h; 7) Natural cooling can complete the firing process.

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