CN111825437A - Preparation method of high-thermal-stability and high-strength jade glaze domestic porcelain - Google Patents
Preparation method of high-thermal-stability and high-strength jade glaze domestic porcelain Download PDFInfo
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Abstract
The invention provides a preparation method of a jade glaze domestic porcelain with high thermal stability and high strength, which comprises the following raw materials in formula: sio2Minerals, AL203Mineral, K20 mineral, B203Mineral, ZnO mineral, boron-zinc frit, zirconium white frit and solvent, and the method comprises the following steps: a. mixing materials, ball milling and mixing, b, refining and ageing, c, forming a blank body, d, drying and cooling, e, glazing and firing, and f, detecting a finished product and inserting the product. The invention mixes materials by ball milling, smelts and ages, forms blank, dries and cools, enamels and sinters and detects finished productsThe flow cooperation of rolling off the production line, multiplicable boron zinc frit and the white frit of zirconium change the ratio of porcelain raw materials, make the reaction better between the porcelain raw materials, and promote crystalline phase development compactness, reduce infusibility materials such as free quartz, improve the density of porcelain child, prevent that the porcelain finished product from firing the in-process fracture appearing, improve the off-the-shelf intensity of porcelain, the glaze on porcelain surface demonstrates the jade quality impression simultaneously, when satisfying daily use, also improves the whole impression of porcelain.
Description
Technical Field
The invention relates to the field of porcelain, in particular to a preparation method of a domestic porcelain with jade glaze surfaces with high thermal stability and high strength.
Background
The porcelain is formed by firing porcelain stones, kaolin, quartz stones, mullite and the like, and is coated with vitreous glaze or colored drawing articles, the porcelain is formed by firing at high temperature in a kiln, and the glaze color on the surface of the porcelain can be subjected to various chemical changes due to different temperatures.
According to the existing porcelain firing method, the produced porcelain finished product is poor in high thermal stability, cracking easily occurs in the firing process, the crystalline phase cannot be promoted to develop compactly, refractory substances such as free quartz and the like are added, the density of porcelain bodies is reduced, the strength is low, meanwhile, the glaze surface on the surface of the porcelain cannot show the appearance of jade, the using requirement of daily porcelain cannot be met, most porcelain can only be used as ornamental porcelain, and the using range of the porcelain is greatly limited.
Therefore, it is necessary to provide a method for preparing a high-thermal-stability high-strength jade-glazed domestic porcelain to solve the above technical problems.
Disclosure of Invention
The invention provides a preparation method of a domestic porcelain with a jade glaze surface with high thermal stability and high strength, which solves the problems that the produced porcelain finished product has poor high thermal stability and low strength, and meanwhile, the glaze surface on the surface of the porcelain does not show the jade impression.
In order to solve the technical problems, the invention provides a preparation method of a domestic porcelain with a jade glaze surface, which has high thermal stability and high strength, and comprises the following raw materials:
the formula comprises the following raw materials: sio2Minerals, AL203Mineral, K20 mineral, B203Minerals, ZnO minerals, boron-zinc frits, zirconium white frits and solvents;
the method comprises the following steps:
a. mixing materials by ball milling: the method comprises the following steps that a user puts solid raw materials into a ball mill in advance to carry out high-speed ball milling treatment, ball milling is carried out on the raw materials to form 40785powder, then a screen is used for screening the powder after ball milling is finished, the user puts the powder of each raw material after ball milling into a reaction kettle, then deionized water with equal parts is added into the reaction kettle, and then an electric stirrer is used for stirring and mixing the raw materials in three modes of high speed, medium speed and low speed until the raw materials are stirred into a viscous state, so that a slurry blank is obtained;
b. refining and aging: then, the user pre-presses the obtained slurry blank, then puts the slurry blank into a refining machine for refining until the slurry blank is refined into a cake shape, and puts the cake-shaped blank into a storage for aging treatment;
c. forming a blank body: then the blank after being aged is placed into a pre-selected mould, and a user manually processes the blank into a ceramic blank body with the required specification;
d. drying and cooling: then placing the ceramic blank into a drying box for pre-drying, controlling the thermal expansion coefficient of the ceramic blank within the range of 180-185, placing the dried blank at a ventilation position, and then performing air cooling on the blank by using a fan;
e. glazing and glaze firing: adopting the principle of a glaze dipping method, putting the dried blank into a glaze barrel by a user to completely dip the blank, dipping the blank into the glaze barrel for three times in the front and back, wherein the dipping time range is between 5 and 15min, detecting and observing the glaze coloring degree of the surface of the blank by the user during the glaze dipping, then putting the glazed blank into a high-temperature furnace to carry out glaze firing molding, the glaze firing time range is between 12 and 20h, and the thermal expansion coefficient of the porcelain glaze is controlled within the range of 160 plus 165, thus obtaining a finished porcelain product;
f. and (3) finished product detection and offline: and cooling the glazed porcelain finished product until the porcelain finished product reaches the room temperature, detecting the porcelain finished product by using a tool, entering a repair line for reworking if the detection is unqualified, and taking the qualified porcelain finished product off line for storage.
Preferably, theThe mixture ratio of the raw materials is Sio2Mineral 20-30 parts, AL20315-24 parts of mineral K20 mineral 18-26 parts, B2038-15 parts of mineral, 4-15 parts of ZnO mineral, 2-8 parts of boron-zinc frit, 3-12 parts of zirconium white frit and 0.8-4 parts of plasticizer.
Preferably, in the process of mixing the ingredients by ball milling, the rotating speed range of the ball mill is 1000-.
Preferably, in the b-milling and ageing process, the ageing time of the blank ranges from 2 days to 7 days, and during the ageing period, a user observes the blank twice a day, namely twice a day divided into morning and evening.
Preferably, in the drying and cooling process, the drying temperature of the drying box is 180-300 ℃, the drying time range is 2-8h, and the fan is a turbofan.
Compared with the prior art, the preparation method of the jade glaze domestic porcelain with high thermal stability and high strength provided by the invention has the following beneficial effects:
the invention provides a method for preparing a jade glaze domestic porcelain with high thermal stability and high strength,
1. according to the invention, through the matching of the processes of burdening, ball milling, mixing, aging, blank forming, drying, cooling, glazing, glaze firing and finished product detection offline, the proportion of boron zinc clinker and zirconium white clinker can be increased to change the porcelain raw materials, so that the reaction between the porcelain raw materials is better, the development and compactness of a crystal phase are promoted, the refractory substances such as free quartz and the like are reduced, the density of a porcelain body is improved, the bending strength of the porcelain body is improved to 80-85 Mpa, cracking in the firing process of the porcelain finished product is prevented, the strength of the porcelain finished product is improved, meanwhile, the glaze surface on the surface of the porcelain presents a jade appearance, and the integral appearance of the porcelain is also improved while daily use is met;
2. the invention enhances the reasonable matching among the raw materials of the porcelain by the proportion among the raw materials, simultaneously increases the boron-zinc clinker and the zirconium white clinker, enhances the reaction effect among the raw materials, leads the strength of the finished porcelain product to be better, can carry out high-speed ball milling on each solid raw material by the rotating speed range of the ball mill being between 1000 and 2000r/min, shortens the ball milling time of the raw materials, simultaneously improves the ball milling precision of the raw materials, can sieve the impurities in the raw material powder by the mesh density range of the screen being between 80 and 200 meshes, avoids the impurities from being made into the porcelain along with the raw materials, influences the integral quality of the porcelain, mixes the raw materials by fast speed, medium speed and slow speed, can carry out uniform and high-efficient mixing among the raw materials by three states, further enhances the fusion effect among the raw materials, and has the aging time range being between 2 and 7 days, the method has the advantages that the ageing effect of the blank is enhanced, structural substances in the blank are effectively precipitated and aged, the drying temperature of the drying box is 180-300 ℃ and the drying time range is 2-8h, heat is fully contacted with the ceramic blank, the drying effect of the ceramic blank is enhanced, the water content in the ceramic blank is reduced, the fan adopts a turbofan, the heat on the surface of the ceramic blank can be uniformly air-cooled, the air cooling rate of the ceramic blank is improved, the detection standard of the finished porcelain is improved through the technical indexes of the product, the qualification rate of the finished porcelain is improved, unqualified porcelain products are prevented from flowing into the market, the high strength range of the porcelain products is 80-85 MPa and the high heat stability range is 180-20' C, the daily use of people is fully met, and the limitation of the porcelain products is greatly reduced.
Detailed Description
The present invention will be further described with reference to the following embodiments.
A preparation method of a high-thermal-stability and high-strength jade glaze domestic porcelain comprises the following raw materials:
the formula comprises the following raw materials: sio2Minerals, AL203Mineral, K20 mineral, B203Minerals, ZnO minerals, boron-zinc frits, zirconium white frits and solvents;
the method comprises the following steps:
a. mixing materials by ball milling: the method comprises the following steps that a user puts solid raw materials into a ball mill in advance to carry out high-speed ball milling treatment, ball milling is carried out on the raw materials to form 40785powder, then a screen is used for screening the powder after ball milling is finished, the user puts the powder of each raw material after ball milling into a reaction kettle, then deionized water with equal parts is added into the reaction kettle, and then an electric stirrer is used for stirring and mixing the raw materials in three modes of high speed, medium speed and low speed until the raw materials are stirred into a viscous state, so that a slurry blank is obtained;
b. refining and aging: then, the user pre-presses the obtained slurry blank, then puts the slurry blank into a refining machine for refining until the slurry blank is refined into a cake shape, and puts the cake-shaped blank into a storage for aging treatment;
c. forming a blank body: then the blank after being aged is placed into a pre-selected mould, and a user manually processes the blank into a ceramic blank body with the required specification;
d. drying and cooling: then placing the ceramic blank into a drying box for pre-drying, controlling the thermal expansion coefficient of the ceramic blank within the range of 180-185, placing the dried blank at a ventilation position, and then performing air cooling on the blank by using a fan;
e. glazing and glaze firing: adopting the principle of a glaze dipping method, putting the dried blank into a glaze barrel by a user to completely dip the blank, dipping the blank into the glaze barrel for three times in the front and back, wherein the dipping time range is between 5 and 15min, detecting and observing the glaze coloring degree of the surface of the blank by the user during the glaze dipping, then putting the glazed blank into a high-temperature furnace to carry out glaze firing molding, the glaze firing time range is between 12 and 20h, and the thermal expansion coefficient of the porcelain glaze is controlled within the range of 160 plus 165, thus obtaining a finished porcelain product;
f. and (3) finished product detection and offline: and cooling the glazed porcelain finished product until the porcelain finished product reaches the room temperature, detecting the porcelain finished product by using a tool, entering a repair line for reworking if the detection is unqualified, and taking the qualified porcelain finished product off line for storage.
The raw materials are sequentially Sio2Mineral 20-30 parts, AL20315-24 parts of mineral K20 mineral 18-26 parts, B2038-15 parts of minerals,4-15 parts of ZnO mineral, 2-8 parts of boron-zinc frit, 3-12 parts of zirconium white frit and 0.8-4 parts of plasticizer, so that the reasonable matching among the raw materials of the porcelain is enhanced, and the boron-zinc frit and the zirconium white frit are added to enhance the reaction effect among the raw materials, so that the finished strength of the porcelain is better.
In the process of mixing the ingredients, namely ball milling, the rotating speed range of the ball mill is between 1000-2000r/min, high-rotating-speed ball milling can be performed on each solid raw material, the ball milling time of the raw materials is shortened, the ball milling precision of the raw materials is improved, the mesh density range of the screen is between 80-200 meshes, impurities in raw material powder can be sieved, the impurities are prevented from being made into porcelain along with the raw materials, the overall quality of the porcelain is not affected, the rotating speed ranges corresponding to the high speed, the medium speed and the low speed are respectively 500-800r/min, 300-500r/min and 100-300r/min, the raw materials can be uniformly and efficiently mixed in three states, and the fusion effect of the raw materials is further enhanced.
In the b refining and ageing process, the ageing time range of the blank is 2-7 days, and in the ageing period, a user observes the blank twice a day, namely the blank is observed twice a day, namely the blank is divided into twice a day, namely the blank is aged twice a day in the morning and in the evening, so that the ageing effect of the blank is enhanced, and the internal structural substances of the blank are effectively precipitated and aged.
In the drying and cooling process, the drying temperature of the drying box is 180-300 ℃, the drying time range is 2-8 hours, so that heat is fully contacted with the ceramic blank, the drying effect of the ceramic blank is enhanced, the water content in the ceramic blank is reduced, and the fan adopts a turbofan, so that the heat on the surface of the ceramic blank can be uniformly air-cooled, and the air cooling rate of the ceramic blank is improved.
In the finished product detection offline process, the technical indexes of the product are as follows: (1) visual quality inspection: the porcelain is fine and smooth, the glaze is smooth like jade, the regularity of the porcelain shape is good, (2) the quality test is carried out: oxidizing and firing the product, wherein the firing temperature is 1245-1255 ℃, the unit comprehensive energy consumption level is less than 295kgce/t of porcelain, the thickness of a glaze layer of the product reaches 1.5-2.0 mm, the thermal shock resistance is 180-20 ℃, the porcelain body does not crack once heat exchange in water, the bending strength of the porcelain body is more than or equal to 80-85 Mpa, the lead dissolution amount is less than or equal to 0.1, the cadmium dissolution amount is less than or equal to 0.01, and the limit requirement of FDACPG7117.06/07 is met; the safety performance of the product conforms to the regulation of SVHC terms in REACH regulations, the detection standard of the finished porcelain product is improved, the qualification rate of the finished porcelain product is improved, and the unqualified finished porcelain product is prevented from flowing into the market.
In the finished product detection off-line process, the thickness range of the Ge kiln glaze of the porcelain product is 1.5-2 mm, the glaze surface of the porcelain product is smooth like jade, the high strength range of the porcelain product is 80-85 Mpa, the high heat stability range is 180-20' C, daily use of people is fully met, and limitation of the porcelain product is greatly reduced.
Compared with the prior art, the preparation method of the jade glaze domestic porcelain with high thermal stability and high strength provided by the invention has the following beneficial effects:
according to the invention, through the scheme and flow cooperation of material mixing, ball milling and mixing, refining and ageing, blank forming, drying and cooling, glazing and glaze firing and finished product detection offline, the proportion of boron zinc clinker and zirconium white clinker can be increased to change the porcelain raw materials, so that the reaction between the porcelain raw materials is better, the development and densification of crystal phases are promoted, the refractory substances such as free quartz and the like are reduced, the density of porcelain bodies is improved, the bending strength of porcelain bodies is improved to 80-85 MPa, cracking in the firing process of the porcelain finished products is prevented, the strength of the porcelain finished products is improved, meanwhile, the glaze surface on the surface of the porcelain presents a jade appearance, and the integral appearance of the porcelain is improved while daily use is met.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent flow transformations made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A preparation method of a domestic porcelain with high thermal stability and high strength jade glaze is characterized by comprising the following raw materials:
the formula comprises the following raw materials: sio2Minerals, AL203Mineral, K20 mineral, B203Minerals, ZnO minerals, boron-zinc frits, zirconium white frits and solvents;
the method comprises the following steps:
a. mixing materials by ball milling: the method comprises the following steps that a user puts solid raw materials into a ball mill in advance to carry out high-speed ball milling treatment, ball milling is carried out on the raw materials to form 40785powder, then a screen is used for screening the powder after ball milling is finished, the user puts the powder of each raw material after ball milling into a reaction kettle, then deionized water with equal parts is added into the reaction kettle, and then an electric stirrer is used for stirring and mixing the raw materials in three modes of high speed, medium speed and low speed until the raw materials are stirred into a viscous state, so that a slurry blank is obtained;
b. refining and aging: then, the user pre-presses the obtained slurry blank, then puts the slurry blank into a refining machine for refining until the slurry blank is refined into a cake shape, and puts the cake-shaped blank into a storage for aging treatment;
c. forming a blank body: then the blank after being aged is placed into a pre-selected mould, and a user manually processes the blank into a ceramic blank body with the required specification;
d. drying and cooling: then placing the ceramic blank into a drying box for pre-drying, controlling the thermal expansion coefficient of the ceramic blank within the range of 180-185, placing the dried blank at a ventilation position, and then performing air cooling on the blank by using a fan;
e. glazing and glaze firing: adopting the principle of a glaze dipping method, putting the dried blank into a glaze barrel by a user to completely dip the blank, dipping the blank into the glaze barrel for three times in the front and back, wherein the dipping time range is between 5 and 15min, detecting and observing the glaze coloring degree of the surface of the blank by the user during the glaze dipping, then putting the glazed blank into a high-temperature furnace to carry out glaze firing molding, the glaze firing time range is between 12 and 20h, and the thermal expansion coefficient of the porcelain glaze is controlled within the range of 160 plus 165, thus obtaining a finished porcelain product;
f. and (3) finished product detection and offline: and cooling the glazed porcelain finished product until the porcelain finished product reaches the room temperature, detecting the porcelain finished product by using a tool, entering a repair line for reworking if the detection is unqualified, and taking the qualified porcelain finished product off line for storage.
2. The method for preparing a high thermal stability high strength jade glaze domestic porcelain according to claim 1, wherein the raw materials are in the following ratio of Sio2Mineral 20-30 parts, AL20315-24 parts of mineral K20 mineral 18-26 parts, B2038-15 parts of mineral, 4-15 parts of ZnO mineral, 2-8 parts of boron-zinc frit, 3-12 parts of zirconium white frit and 0.8-4 parts of plasticizer.
3. The method as claimed in claim 1, wherein in the step a of mixing the ingredients, the ball mill rotates at a speed of 1000-.
4. The method as claimed in claim 1, wherein the aging time of the blank in the aging process is 2-7 days, and the user observes the blank twice a day, i.e. twice a day in the morning and in the evening.
5. The method as claimed in claim 1, wherein the drying temperature of the drying box is 180-300 ℃, the drying time is 2-8h, and the fan is a turbofan.
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