Ultrathin high-temperature colored glazed glass with high flatness and processing method of ultrathin high-temperature colored glazed glass

Abstract

The invention provides ultra-thin high-temperature colored glazed glass with high flatness and a processing method thereof. The processing method comprises the following steps: providing a glass substrate with the thickness smaller than a preset thickness and a colored glaze material; respectively carrying out ultrasonic cleaning and chemical etching on the glass substrate, so that the roughness of the surface of the glass substrate is in a micro-nano scale, and the glass substrate is used for enhancing the binding force of the glass substrate and the colored glaze material; uniformly screen-printing colored glaze on the surface of the glass substrate, wherein the thickness of a screen-printed glaze layer is in a micro-nano level; obtaining a temperature firing curve corresponding to the screen-printed glass substrate, wherein the temperature firing curve comprises preheating area firing information, main sintering area firing information, high-temperature forming area firing information and rapid cooling area firing information; and firing the screen-printed glass substrate in a high-temperature furnace according to the temperature firing curve to obtain the processed ultrathin high-temperature colored glazed glass. Wherein the firing information of the rapid cooling area at least comprises airflow control information, so that the screen-printed glass substrate is rapidly cooled, and the flatness of the glass substrate is protected.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to an ultra-thin high-temperature colored glaze glass with high flatness and a processing method thereof. Background Art

[0002] With the rapid development of modern construction, people have higher and higher requirements for the aesthetics and functionality of building materials. Ultra-thin high-temperature glazed glass, as a new type of material with both color effects and light transmittance, has been widely used in curtain walls, partitions, decoration and other fields. However, the existing glazed glass processing methods, such as direct spraying and high-temperature firing after screen printing, generally have the following technical challenges, which limit its application and development in the high-end market:

[0003] 1. Insufficient flatness: Ultra-thin glass substrates are prone to uneven thickness during the production process, resulting in unsatisfactory surface flatness. This unevenness not only affects the visual effect of the glass, but also increases the difficulty during installation, reducing the overall aesthetics and safety.

[0004] 2. High temperature deformation: During the high temperature firing process, the traditional heating and cooling methods cannot effectively maintain the shape of the glass, which can easily cause the glass to deform or generate internal stress. This not only affects the flatness of the glass, but also reduces its structural strength and service life.

[0005] 3. Poor adhesion of colored glaze: colored glaze materials are prone to fall off or color distortion in high temperature environments. This is because the formula and firing process of existing colored glaze materials are not optimized enough to ensure a good combination of the colored glaze layer and the glass substrate. The instability of the colored glaze layer not only affects the aesthetics of the glass, but may also cause problems during use, reducing the reliability and market acceptance of the product.

[0006] Therefore, there is an urgent need for an ultra-thin high-temperature colored glaze glass with high flatness and a processing method thereof to solve at least one of the above problems. Summary of the invention

[0007] The present application provides an ultra-thin high-temperature colored glaze glass with high flatness and a processing method thereof, aiming to solve the problems of the colored glaze glass processing methods in the prior art, such as direct spraying and high-temperature firing after screen printing, which generally have the following problems: insufficient flatness, high-temperature deformation and poor adhesion of the colored glaze, which limits its application and development in the high-end market.

[0008] In a first aspect, the present application provides a method for processing ultra-thin high-temperature colored glaze glass with high flatness, comprising:

[0009] Providing glass substrates and colored glaze materials with thickness less than a preset thickness;

[0010] The glass substrate is respectively subjected to ultrasonic cleaning and chemical etching so that the roughness of the surface of the glass substrate is at a micro-nano level, so as to enhance the bonding force between the glass substrate and the colored glaze;

[0011] The colored glaze is evenly screen-printed on the surface of the glass substrate, and the thickness of the screen-printed coating is micro-nano level;

[0012] Obtaining a temperature firing curve corresponding to the glass substrate after silk-screen printing, wherein the temperature firing curve includes firing information of a preheating zone, firing information of a main sintering zone, firing information of a high-temperature forming zone, and firing information of a rapid cooling zone;

[0013] The glass substrate after silk-screen printing is fired in a preset high-temperature furnace according to the temperature firing curve to obtain the processed ultra-thin high-temperature colored glaze glass; wherein the rapid cooling zone firing information at least includes airflow control information to ensure rapid cooling of the glass substrate after silk-screen printing and protect the flatness of the glass substrate.

[0014] In some embodiments, the preset thickness is 1.6 mm, and the material of the glass substrate is silicate.

[0015] In some embodiments, the colored glaze is mainly composed of glass powder, pigment and varnish. The pigment and glass powder are precisely ground to micro-nano level. The micro-nano level pigment, glass powder and varnish are mixed and fully stirred to make a uniform and delicate colored glaze, which is used to ensure uniform shrinkage of the colored glaze layer during the firing process.

[0016] In some embodiments, before the colored glaze is evenly screen-printed on the surface of the glass substrate, the method further includes: detecting the glass substrate based on laser leveling technology to ensure that the surface flatness of the glass substrate is higher than a preset flatness.

[0017] In some embodiments, after the glass substrate after silk screen printing is fired in a preset high-temperature furnace according to the temperature firing curve, the method further includes: mechanically polishing the fired glass substrate; chemically polishing the mechanically polished glass substrate to obtain the processed ultra-thin high-temperature colored glaze glass; the mechanical polishing and chemical polishing are used to eliminate tiny unevenness of the glass substrate and improve the flatness.

[0018] Exemplarily, the polishing time corresponding to the mechanical polishing is in a range of 5 minutes to 10 minutes, and the polishing time corresponding to the chemical polishing is in a range of 10 minutes to 20 minutes.

[0019] In some embodiments, the firing information of the preheating zone includes at least a preheating temperature, which corresponds to a temperature range of 300°C to 500°C, and is used to remove moisture and volatiles from the surface of the glass substrate and reduce stress; the firing information of the main sintering zone includes at least a sintering temperature, which corresponds to a temperature range of 600°C to 700°C, and is used to flatten the surface and promote the adhesion of silk-screen colored glazes; the firing information of the high-temperature molding zone includes at least a molding temperature, which corresponds to a temperature range of 700°C to 800°C, and is used to perform precise flatness processing and color uniformity processing on the glass substrate; the firing information of the rapid cooling zone also includes a target cooling rate, and the target cooling rate corresponds to a rate range of 400°C / h to 600°C / h to prevent cracking caused by thermal stress.

[0020] In some embodiments, obtaining a temperature firing curve corresponding to the glass substrate after silk-screening includes: obtaining a glass substrate type, a substrate size, and a substrate thickness corresponding to the glass substrate; obtaining a glaze material type and a glaze silk-screen thickness corresponding to the colored glaze; and generating the temperature firing curve according to the glass substrate type, substrate size, substrate thickness, glaze material type, and glaze silk-screen thickness.

[0021] Exemplarily, the generating the temperature firing curve according to the glass substrate type, substrate size, substrate thickness, glaze material type and glaze silk-screen thickness includes: obtaining a reference cooling rate, a reference preheating temperature and a reference sintering temperature corresponding to the glass substrate according to the glass substrate type; calculating the preheating temperature corresponding to the preheating zone firing information according to the reference preheating temperature, substrate size and substrate thickness; calculating the sintering temperature corresponding to the main sintering zone firing information according to the reference sintering temperature, glaze silk-screen thickness and substrate thickness; calculating the molding temperature corresponding to the high-temperature molding zone firing information according to the sintering temperature, glaze silk-screen thickness, substrate size and substrate thickness; and calculating the target cooling rate corresponding to the rapid cooling zone firing information according to the reference cooling rate, glaze silk-screen thickness, substrate size and substrate thickness.

[0022] In some embodiments, the expression of the preheating temperature includes:

[0023] ;

[0024] The expression of the sintering temperature includes:

[0025] ;

[0026] The expression of the molding temperature includes:

[0027] ;

[0028] The expression of the target cooling rate includes:

[0029] ;

[0030] Among them, the is the preheating temperature, is the sintering temperature, is the molding temperature, is the target cooling rate, , and are the reference cooling rate, reference preheating temperature and reference sintering temperature, respectively, is the substrate size, is the thickness of the substrate, is the glaze screen printing thickness, , , , and They are respectively multiple preset adjustment coefficients.

[0031] In some embodiments, the high temperature furnace includes a plurality of air flow nozzles, and the air flow nozzles are evenly arranged along the surface of the glass substrate to provide a high temperature air flow when cooling the glass substrate; the air flow control information includes an air flow velocity, an air flow direction, and an air flow angle corresponding to each air flow nozzle; in the process of cooling the glass substrate, the temperature distribution information of the glass substrate, the ambient temperature information, and the target cooling rate corresponding to the air flow control information are obtained, so as to generate the air flow velocity, air flow direction, and air flow angle corresponding to each air flow nozzle according to the temperature distribution information, the ambient temperature information, and the target cooling rate, so as to complete the cooling of the glass substrate.

[0032] Exemplarily, the airflow control information also includes the airflow type of each of the airflow nozzles; if the glass substrate type corresponding to the glass substrate is any one of silicate, borosilicate, and fluoride, the airflow type includes at least carbon dioxide; if the glaze material type corresponding to the colored glaze is any one of metal oxide, sulfide, and precious metal, the airflow type includes at least nitrogen.

[0033] In a second aspect, the present application provides an ultra-thin high-temperature colored glaze glass with high flatness, which is prepared using the method provided in any embodiment of the present application.

[0034] The present application provides an ultra-thin high-temperature colored glaze glass with high flatness and a processing method thereof. The method is a processing technology for ultra-thin high-temperature colored glaze glass with high flatness, which is mainly achieved by the following steps: First, an ultra-thin glass substrate with a thickness less than a preset thickness is selected. This step is to ensure the lightness and transparency of the final product. Then, the colored glaze glaze for silk screen printing is prepared. The quality of the colored glaze glaze directly affects the color and texture of the final colored glaze glass. Then, the cavitation effect of ultrasound is used to remove tiny impurities and pollutants on the surface of the glass substrate to improve the surface cleanliness. Through chemical etching treatment, the roughness of the surface of the glass substrate reaches the micro-nano level. This treatment can significantly enhance the bonding force between the glass substrate and the colored glaze glaze, and prevent the colored glaze from falling off or peeling off during high-temperature firing. Further, using precision silk screen equipment, the colored glaze glaze is evenly silk-screened on the surface of the glass substrate to ensure that the thickness of the coating is at the micro-nano level. This step is very critical, and the uniformity and thickness of the coating directly affect the flatness and color consistency of the final colored glaze glass. For example, through experiments and data analysis, a temperature firing curve suitable for firing ultra-thin high-temperature colored glaze glass can be obtained. The curve is divided into four areas: Preheating area: slowly heat up the glass substrate to avoid cracking of the substrate due to excessive temperature difference. Main sintering area: fully sinter the colored glaze at a suitable high temperature to form a stable glaze layer. High-temperature forming area: further increase the temperature to completely fuse the glass and colored glaze to ensure the uniformity and adhesion of the colored glaze layer. Cooling area: control the airflow to quickly and evenly cool the glass substrate after silk-screen printing to avoid deformation caused by temperature difference and protect the flatness of the glass substrate. Furthermore, according to the obtained temperature firing curve, the glass substrate after silk-screen printing is fired in a high-temperature furnace to finally obtain ultra-thin high-temperature colored glaze glass with high flatness.

[0035] The method provided thereby has at least the following beneficial effects:

[0036] 1. High flatness: Through ultrasonic cleaning and chemical etching, the surface of the glass substrate reaches micro-nano roughness, which enhances the bonding force with the glaze. In the cooling zone, air flow control is used to achieve rapid and uniform cooling, avoiding deformation caused by temperature difference and ensuring the flatness of the glass substrate.

[0037] 2. High temperature deformation control: The four areas of the temperature firing curve are reasonably designed, especially the control in the preheating zone and cooling zone, which avoids the deformation of the glass substrate due to excessive temperature difference during high temperature firing.

[0038] 3. Strong adhesion of colored glaze: Chemical etching treatment increases the roughness of the glass substrate surface, enhances the bonding between the colored glaze and the substrate, and avoids the falling off or peeling of the colored glaze during the firing process.

[0039] 4. Uniform color: The micro-nano coating thickness and uniform silk-screen printing process ensure the uniform thickness of the glaze layer, so that the color of the final product is uniform and consistent, improving the appearance and quality of the product.

[0040] 5. Applicable to high-end market: This method solves the problems of insufficient flatness of glazed glass, high-temperature deformation and poor adhesion of glaze in the existing technology, improves the overall performance of the product, and enables it to be better applied to high-end markets, such as architectural decoration, high-end electronic equipment and other fields.

[0041] In summary, the provided processing method not only improves the performance and quality of colored glaze glass, but also expands its application areas, and has important market potential and technological innovation value.

[0042] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 It is a schematic flow chart of the steps of a method for processing ultra-thin high-temperature colored glaze glass with high flatness provided in one embodiment of the present application.

[0045] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0048] It should be understood that, in order to facilitate the clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit the difference.

[0049] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0050] It should also be understood that the term “and / or” used in the specification and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0051] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] With the rapid development of modern construction, people have higher and higher requirements for the aesthetics and functionality of building materials. Ultra-thin high-temperature glazed glass, as a new type of material with both color effects and light transmittance, has been widely used in curtain walls, partitions, decoration and other fields. However, the existing glazed glass processing methods, such as direct silk screen printing and high-temperature firing after silk screen printing, generally have the following technical challenges, which limit its application and development in the high-end market:

[0053] 1. Insufficient flatness: Ultra-thin glass substrates are prone to uneven thickness during the production process, resulting in unsatisfactory surface flatness. This unevenness not only affects the visual effect of the glass, but also increases the difficulty during installation, reducing the overall aesthetics and safety.

[0054] 2. High temperature deformation: During the high temperature firing process, the traditional heating and cooling methods cannot effectively maintain the shape of the glass, which can easily cause the glass to deform or generate internal stress. This not only affects the flatness of the glass, but also reduces its structural strength and service life.

[0055] 3. Poor adhesion of colored glaze: colored glaze materials are prone to fall off or color distortion in high temperature environments. This is because the formula and firing process of existing colored glaze materials are not optimized enough to ensure a good combination of the colored glaze layer and the glass substrate. The instability of the colored glaze layer not only affects the aesthetics of the glass, but may also cause problems during use, reducing the reliability and market acceptance of the product.

[0056] Therefore, there is an urgent need for an ultra-thin high-temperature colored glaze glass with high flatness and a processing method thereof to solve at least one of the above problems.

[0057] See also Figure 1 , Figure 1 It is a schematic flow chart of the steps of a method for processing ultra-thin high-temperature colored glaze glass with high flatness provided in one embodiment of the present application.

[0058] Specifically, Figure 1 As shown, the provided method for processing ultra-thin high-temperature colored glaze glass with high flatness includes steps S101 to S105. The details are as follows:

[0059] Step S101: providing a glass substrate and glaze material having a thickness less than a preset thickness.

[0060] Specifically, first, it is necessary to select an ultra-thin glass substrate of suitable thickness and a colored glaze suitable for high-temperature firing. The thickness of the glass substrate should be less than the preset value (e.g. 1.0 mm) to meet the requirements of ultra-thin glass. The colored glaze needs to have good fluidity and stability, be able to be evenly distributed on the glass substrate, and maintain adhesion and color stability at high temperatures. For example, an ultra-thin glass substrate with a thickness of 1.6 mm can be selected, and a colored glaze containing nano-scale particles can be used. The particle size of this glaze is usually between 50-100 nm, which helps to improve its adhesion on the glass substrate.

[0061] Selecting the right ultra-thin glass substrate and glaze is the basis for ensuring the quality of the final product. The ultra-thin glass substrate can meet the requirements of modern architecture for lightness and light transmittance, while the glaze containing nano-scale particles can provide better color effects and adhesion.

[0062] Step S102: ultrasonically clean and chemically etch the glass substrate respectively, so that the roughness of the surface of the glass substrate is at a micro-nano level, so as to enhance the bonding force between the glass substrate and the colored glaze.

[0063] Specifically, the glass substrate needs to be ultrasonically cleaned and chemically etched before use to remove impurities and contaminants on the surface and increase the surface roughness. Ultrasonic cleaning can effectively remove tiny particles and oil stains on the surface of the substrate, while chemical etching forms micro-nano roughness on the glass surface through corrosion, thereby enhancing the adhesion of the glaze.

[0064] For example, ultrasonic cleaning is usually carried out in an ultrasonic cleaning tank using water or an organic solvent (such as alcohol) and lasts for about 10-15 minutes. Chemical etching can use hydrofluoric acid (HF) or sodium hydroxide (NaOH) solution, and the etching time is usually 1-2 minutes. The surface roughness after etching should be controlled within 50-100 nm.

[0065] Ultrasonic cleaning and chemical etching can significantly improve the surface roughness of the glass substrate, thereby enhancing the adhesion of the glaze and reducing the risk of glaze layer falling off. At the same time, the clean surface also helps to improve the visual effect and quality stability of the final product.

[0066] Step S103: evenly screen-print the colored glaze on the surface of the glass substrate, and the thickness of the screen-printed coating is micro-nano level.

[0067] Specifically, the colored glaze is evenly printed on the surface of the glass substrate using high-precision screen printing equipment, and the coating thickness of the screen printing should be at the micro-nano level. The screen distance, speed and mesh number need to be strictly controlled during the screen printing process to ensure that the glaze is evenly distributed.

[0068] For example, electrostatic screen printing equipment can be used, the distance between the screen and the glass substrate is controlled at 20-30 cm, the screen printing speed is 10-15 cm / s, and the screen mesh is 250-400 mesh. The coating thickness can be accurately controlled by multiple screen printings, and the final thickness should be maintained at 10-40 um.

[0069] High-precision screen printing technology can ensure the uniform distribution of colored glaze on the glass substrate, avoiding the problem of uneven thickness. The micro-nano coating thickness helps to reduce the weight of the glass and improve light transmittance and color effects.

[0070] Step S104: Obtain a temperature firing curve corresponding to the glass substrate after screen printing, wherein the temperature firing curve includes firing information of a preheating zone, firing information of a main sintering zone, firing information of a high-temperature forming zone, and firing information of a rapid cooling zone.

[0071] Specifically, according to the characteristics of the glass material, a suitable temperature firing curve is designed. The temperature firing curve includes four main stages: preheating zone firing, main sintering zone firing, high temperature forming zone firing and rapid cooling zone. The specific parameters of each stage need to be optimized according to the characteristics of the glass material and the glaze.

[0072] For example, firing in the preheating zone: the temperature rises from room temperature to 300-400°C for 10-20 minutes. Firing in the main sintering zone: the temperature rises to 500-600°C for 20-30 minutes. Firing in the high-temperature molding zone: the temperature rises to 700-800°C for 15-25 minutes. Rapid cooling zone: the temperature cools from 700-800°C to room temperature, and the cooling rate is controlled at 20-30°C / minute.

[0073] The optimized temperature firing curve can effectively control the thermal expansion and contraction of the glass during the firing process, reducing deformation and internal stress. The temperature and time parameters of each stage are carefully designed to ensure the stability of the glaze layer.

[0074] Step S105. Firing the glass substrate after silk-screening in a preset high-temperature furnace according to the temperature firing curve to obtain the processed ultra-thin high-temperature colored glaze glass; wherein the rapid cooling zone firing information includes at least airflow control information to ensure rapid cooling of the glass substrate after silk-screening and protect the flatness of the glass substrate.

[0075] Specifically, the firing is performed in a preset high temperature furnace, strictly following the temperature firing curve designed in step S104. It is worth noting that the firing information of the cooling zone at least includes airflow control information to ensure rapid cooling of the glass substrate and protect its flatness.

[0076] For example, in a high-temperature furnace, precise temperature control and airflow control are used to ensure that the temperature and cooling rate of the glass substrate at each stage meet the design requirements. During the cooling process, nitrogen or other inert gases can be used for protective cooling, and the airflow rate is controlled at 1-2 m / s.

[0077] Through precise temperature control and cooling control, the deformation and internal stress of the glass during high-temperature firing can be effectively reduced, thereby improving the flatness and structural strength of the product. Protective cooling also helps prevent the glaze layer from oxidation or discoloration during the cooling process, ensuring the stability and aesthetics of the color.

[0078] In some embodiments, the preset thickness is 1.6 mm, and the material of the glass substrate is silicate.

[0079] By selecting a silicate glass substrate with a thickness of 1.6 mm. Silicate glass is a commonly used architectural glass material with good light transmittance, heat resistance and chemical stability. Silicate glass has good light transmittance and heat resistance, and is suitable for the substrate of ultra-thin high-temperature colored glaze glass. The ultra-thin glass substrate with a thickness of 1.6 mm can significantly reduce the overall weight while maintaining high mechanical strength and optical properties.

[0080] At the same time, by ultrasonic cleaning, chemical etching, uniform silk-screening of colored glazes on a 1.6 mm thick silicate glass substrate, and using an optimized temperature firing curve, the problems of insufficient flatness, high-temperature deformation, and poor adhesion of colored glazes in the processing of ultra-thin high-temperature colored glaze glass were effectively solved. This method not only improves the aesthetics and functionality of the product, but also ensures the high reliability and long life of the product, providing strong support for its application in the high-end market.

[0081] In some embodiments, the colored glaze is mainly composed of glass powder, pigment and varnish. The pigment and glass powder are precisely ground to micro-nano level. The micro-nano level pigment, glass powder and varnish are mixed and fully stirred to make a uniform and delicate colored glaze, which is used to ensure uniform shrinkage of the colored glaze layer during the firing process.

[0082] By selecting nano-scale inorganic pigments or organic pigments, these pigments have high chemical stability and high temperature resistance. For example, the particle size of the pigment should be controlled between 0-20um to ensure its uniform distribution in the glaze.

[0083] By choosing resins suitable for high temperature firing, such as silicone resins or epoxy resins. These resins have good heat resistance and film-forming properties, and can maintain the stability of the glaze layer at high temperatures. The resin should have low volatility and high viscosity to ensure the uniformity and stability of the glaze during the screen printing process.

[0084] For example, use a high shear mixer or planetary mixer to mix to ensure that the pigment and resin are fully mixed. Adjust the mixing ratio of pigment and resin according to the required color and performance. Usually, the mass percentage of pigment is 5-15%, and the mass percentage of glass powder and varnish is 85-95%. The mixing time is generally 30-60 minutes to ensure uniform mixing of pigment and resin.

[0085] At the same time, use a ball mill or sand mill for precision grinding. Choose appropriate grinding media, such as ceramic balls or zirconia balls, to ensure uniformity and stability during the grinding process. The grinding time is generally 1-2 hours to ensure that the size of the pigment particles reaches the micro-nano level to form a uniform and delicate glaze. In the ground glaze, the particle size of the pigment particles should be further reduced to 30-50 nm to ensure the uniform distribution of the pigment in the glaze.

[0086] By selecting nano-scale pigments and high-temperature resistant resins, fully mixing and precisely grinding, uniform and delicate colored glazes are prepared. This glaze can effectively reduce deformation and internal stress during screen printing and firing, improve the adhesion and color stability of the colored glaze layer, and thus significantly improve the aesthetics and functionality of ultra-thin high-temperature colored glaze glass.

[0087] In some embodiments, before the colored glaze is evenly screen-printed on the surface of the glass substrate, the method further includes: detecting the glass substrate based on laser leveling technology to ensure that the surface flatness of the glass substrate is higher than a preset flatness.

[0088] The glass substrate is inspected by using a laser level gauge. The laser level gauge accurately measures the flatness of the glass substrate surface by emitting a laser beam and receiving the reflected signal. The laser level gauge can provide a high-precision three-dimensional topography of the glass substrate surface. The detection range is usually 0.1-1 mm, and the accuracy can reach the micron level (1-5 μm).

[0089] According to the specific application requirements, the preset flatness standard of the glass substrate surface is set. For example, for high-end curtain wall applications, the preset flatness standard can be set to ≤1μm. If the surface flatness of the glass substrate is lower than the preset standard, further processing or replacement is required to ensure the quality of the final product.

[0090] Place the glass substrate on the working platform of the laser leveler to ensure that the substrate surface is flat and has no obvious tilt. Start the laser leveler to scan the surface of the glass substrate line by line or point by point to generate a surface topography map. Use the built-in analysis software to analyze the generated topography map to evaluate the flatness of the glass substrate surface. Based on the analysis results, determine whether the surface flatness of the glass substrate meets the preset standards. If it does not meet the standards, further processing is required.

[0091] For glass substrates that do not meet the flatness standards, further surface treatment, such as polishing or grinding, can be performed to improve their flatness. If the surface treatment cannot meet the preset standards, a new glass substrate can be selected for replacement.

[0092] Laser leveling technology can provide high-precision surface topography to ensure that the surface flatness of the glass substrate meets the preset standard. Laser leveling before screen printing glazes can timely detect and deal with substrates that do not meet the flatness standards to avoid problems in subsequent processing. Highly flat glass substrates can significantly improve the visual effect of the final product, making its surface smoother and more uniform. Flat glass substrates are more convenient during installation, reducing installation difficulties and safety hazards caused by uneven substrates.

[0093] By using laser leveling technology to inspect the glass substrate before screen printing the colored glaze, we can ensure that its surface flatness is higher than the preset standard. This method not only improves the aesthetics and safety of the final product, but also effectively reduces the generation of deformation and internal stress, and improves production efficiency and quality control level.

[0094] In some embodiments, after the glass substrate after silk screen printing is fired in a preset high-temperature furnace according to the temperature firing curve, the method further includes: mechanically polishing the fired glass substrate; chemically polishing the mechanically polished glass substrate to obtain the processed ultra-thin high-temperature colored glaze glass; the mechanical polishing and chemical polishing are used to eliminate tiny unevenness of the glass substrate and improve the flatness.

[0095] By using a mechanical polisher, such as a grinding polisher or an automatic polisher. If a diamond polishing disc or an alumina polishing disc is used, these materials have a high hardness and can effectively remove the tiny unevenness on the surface of the glass substrate. Control the pressure of the polishing disc on the glass substrate, usually 0.5-1.0 MPa. The speed of the polishing disc should be controlled at 500-1000 revolutions per minute (RPM). The time range of mechanical polishing is 5-10 minutes.

[0096] The polishing liquid for chemical polishing uses an acidic solution such as hydrofluoric acid (HF) or nitric acid (HNO3) for chemical polishing. The concentration of the polishing liquid should be controlled at 1-3%. The temperature of the polishing liquid should be controlled at 20-30°C. The time range of chemical polishing is 10-20 minutes. Immerse the mechanically polished glass substrate in the polishing liquid, or spray the polishing liquid evenly on the surface of the glass substrate.

[0097] At the same time, the surface finish of the glass substrate and whether there are any residual polishing marks or defects can be evaluated by visual inspection or microscopic inspection.

[0098] Mechanical polishing can effectively remove tiny bumps and depressions on the surface of glass substrates and improve their flatness. Chemical polishing further improves the flatness and finish of glass substrates by dissolving tiny uneven parts of the glass surface. After mechanical polishing and chemical polishing, the finish of the glass substrate surface is significantly improved, making it smoother and more beautiful. A high-finish surface can reduce the scattering of light and improve the light transmittance of glass, which is suitable for application scenarios that require high transparency. By eliminating tiny surface irregularities, the risk of stress concentration can be reduced and the mechanical strength and durability of the glass substrate can be improved. Surfaces with high flatness and finish have better scratch resistance and extend the service life of the product.

[0099] Mechanical polishing and chemical polishing processes can be standardized to ensure that each glass substrate has the same treatment effect. Through testing and evaluation, it can ensure that the quality and performance of the product meet the expected standards and improve the market competitiveness of the product.

[0100] Exemplarily, the polishing time corresponding to the mechanical polishing is in a range of 5 minutes to 10 minutes, and the polishing time corresponding to the chemical polishing is in a range of 10 minutes to 20 minutes.

[0101] The mechanical polishing time of 5 minutes is suitable for glass substrates with relatively flat surfaces, mainly to remove small bumps on the surface. 10 minutes is suitable for glass substrates with obvious uneven surfaces, to further improve the surface flatness.

[0102] If the chemical polishing time is 10 minutes, it is suitable for glass substrates after preliminary mechanical polishing, mainly used to remove tiny polishing marks and residual unevenness. 20 minutes is suitable for glass substrates that require higher finish. Through longer chemical polishing, the surface is ensured to be extremely flat and smooth.

[0103] Different polishing time ranges can be adjusted according to the initial flatness of the glass substrate to improve processing flexibility. By controlling the polishing time, the processing effect and production efficiency can be better balanced to ensure the optimal effect of each link. The appropriate mechanical polishing time can avoid substrate damage or uneven thickness caused by over-polishing. The appropriate chemical polishing time can avoid excessive corrosion of the glass substrate by chemical solutions, ensuring the integrity and performance of the substrate.

[0104] By setting a specific polishing time range, production efficiency can be effectively improved and processing cycle can be shortened. Optimization of time control can reduce the scrap rate caused by improper processing and improve the overall production quality.

[0105] In some embodiments, the firing information of the preheating zone includes at least a preheating temperature, which corresponds to a temperature range of 300°C to 500°C, and is used to remove moisture and volatiles from the surface of the glass substrate and reduce stress; the firing information of the main sintering zone includes at least a sintering temperature, which corresponds to a temperature range of 600°C to 700°C, and is used to flatten the surface and promote the adhesion of silk-screen colored glazes; the firing information of the high-temperature molding zone includes at least a molding temperature, which corresponds to a temperature range of 700°C to 800°C, and is used to perform precise flatness processing and color uniformity processing on the glass substrate; the firing information of the rapid cooling zone also includes a target cooling rate, and the target cooling rate corresponds to a rate range of 400°C / h to 600°C / h to prevent cracking caused by thermal stress.

[0106] At a preheating temperature of 300°C to 500°C, moisture and volatiles on the surface of the glass substrate can be effectively removed, avoiding bubbles and cracks caused by water evaporation during high-temperature firing, reducing internal stress and improving the stability of the substrate.

[0107] At a sintering temperature of 600°C to 700°C, the surface of the glass substrate can be further flattened, while promoting the close bonding of the silk-screen glaze and the substrate, and improving the adhesion and uniformity of the glaze layer.

[0108] At a molding temperature of 700°C to 800°C, the surface of the glass substrate can be precisely flattened to ensure that it meets the required high flatness standards. In addition, high-temperature firing helps the glaze pigments to fully melt and diffuse, improving the uniformity and stability of the color.

[0109] By controlling the target cooling rate within the range of 400°C / h to 600°C / h, thermal stress in the glass substrate during rapid cooling can be effectively prevented, reducing the risk of cracks and breakage, and ensuring product integrity and safety.

[0110] The content of this embodiment is described below with a specific step:

[0111] Preheating zone: Place the glass substrate in a preset high temperature furnace and gradually heat it to 300°C to 500°C. Maintain this temperature for 30-60 minutes to ensure that moisture and volatiles are fully removed.

[0112] Main sintering area: Continue to heat up to 600°C to 700°C. Maintain this temperature for 60-120 minutes to ensure the smoothness of the glass substrate surface and the full adhesion of the glaze.

[0113] High temperature forming area: further increase the temperature to 700°C to 800°C. Maintain this temperature for 60-120 minutes for precise flatness processing and color uniformity treatment.

[0114] Cooling zone: Control the cooling rate to 400°C / h to 600°C / h. Adjust the cooling time according to the thickness of the glass substrate and the cooling rate, generally 1-2 hours.

[0115] By setting precise temperature control and cooling rate at different firing stages, it ensures that the moisture and volatiles of ultra-thin high-temperature glazed glass are effectively removed, the surface is flat, the glaze is well adhered, the color is uniform, and cracks caused by thermal stress are prevented. This multi-stage temperature control method not only improves the quality and performance of the final product, but also ensures the stability and reliability of the production process.

[0116] In some embodiments, obtaining a temperature firing curve corresponding to the glass substrate after silk-screening includes: obtaining a glass substrate type, a substrate size, and a substrate thickness corresponding to the glass substrate; obtaining a glaze material type and a glaze silk-screen thickness corresponding to the colored glaze; and generating the temperature firing curve according to the glass substrate type, substrate size, substrate thickness, glaze material type, and glaze silk-screen thickness.

[0117] The generated temperature firing curve can accurately match different types of glass substrates and glaze materials to ensure the best effect during the firing process. It avoids the inadaptability of the general firing curve and improves the efficiency and success rate of the firing process.

[0118] By optimizing the firing temperature and time, the glaze is uniformly attached to the surface of the glass substrate. It helps to flatten the surface of the glass substrate and improve the flatness and finish of the final product. It ensures the uniformity and stability of the glaze color and enhances the visual effect of the product. By optimizing the firing curve, the risk of cracks and breakage caused by temperature mismatch or thermal stress is reduced. It ensures that each piece of glass substrate is treated consistently during the firing process and reduces the scrap rate.

[0119] Exemplarily, the generating the temperature firing curve according to the glass substrate type, substrate size, substrate thickness, glaze material type and glaze silk-screen thickness includes: obtaining a reference cooling rate, a reference preheating temperature and a reference sintering temperature corresponding to the glass substrate according to the glass substrate type; calculating the preheating temperature corresponding to the preheating zone firing information according to the reference preheating temperature, substrate size and substrate thickness; calculating the sintering temperature corresponding to the main sintering zone firing information according to the reference sintering temperature, glaze silk-screen thickness and substrate thickness; calculating the molding temperature corresponding to the high-temperature molding zone firing information according to the sintering temperature, glaze silk-screen thickness, substrate size and substrate thickness; and calculating the target cooling rate corresponding to the rapid cooling zone firing information according to the reference cooling rate, glaze silk-screen thickness, substrate size and substrate thickness.

[0120] Through calculation, the glass substrate can reach the most suitable temperature in the preheating zone, effectively remove moisture and volatiles, and reduce stress. The temperature control of the main sintering zone can ensure the uniform adhesion of the glaze and a flat surface. The temperature control of the high-temperature forming zone can perform precise flatness processing and color uniformity processing. The target cooling rate in the cooling zone can prevent cracking caused by thermal stress and ensure the integrity and safety of the product. Through precise sintering temperature control, the adhesion of the glaze and the glass substrate is improved. The precise temperature control of the high-temperature forming zone ensures the uniformity of color and surface, and improves the visual and use effects of the product. Each glass substrate can achieve the expected effect under the same firing conditions, improving the consistency and reliability of production. By recording and calculating the parameters of each stage, the traceability of the production process can be achieved, which is convenient for quality control and problem troubleshooting.

[0121] In some embodiments, the expression of the preheating temperature includes:

[0122] ;

[0123] The expression of the sintering temperature includes:

[0124] ;

[0125] The expression of the molding temperature includes:

[0126] ;

[0127] The expression of the target cooling rate includes:

[0128] ;

[0129] Among them, the is the preheating temperature, is the sintering temperature, is the molding temperature, is the target cooling rate, , and are the reference cooling rate, reference preheating temperature and reference sintering temperature, respectively, is the substrate size, is the thickness of the substrate, is the glaze screen printing thickness, , , , and They are respectively multiple preset adjustment coefficients.

[0130] Preheating temperature, sintering temperature, molding temperature and target cooling rate are calculated through precise mathematical expressions, ensuring the best processing effect of ultra-thin high-temperature colored glaze glass at each firing stage. This method not only improves the quality and performance of the product, reduces the scrap rate, but also enhances the flexibility and adaptability of production.

[0131] In some embodiments, the high temperature furnace includes a plurality of air flow nozzles, and the air flow nozzles are evenly arranged along the surface of the glass substrate to provide a high temperature air flow when cooling the glass substrate; the air flow control information includes an air flow velocity, an air flow direction, and an air flow angle corresponding to each air flow nozzle; in the process of cooling the glass substrate, the temperature distribution information of the glass substrate, the ambient temperature information, and the target cooling rate corresponding to the air flow control information are obtained, so as to generate the air flow velocity, air flow direction, and air flow angle corresponding to each air flow nozzle according to the temperature distribution information, the ambient temperature information, and the target cooling rate, so as to complete the cooling of the glass substrate.

[0132] The uniform setting and precise control of multiple airflow nozzles ensures that the temperature of the glass substrate is evenly distributed during the cooling process, reducing the risk of local overcooling or overheating. Uniform cooling can effectively reduce thermal stress, prevent cracks and breakage of the glass substrate during the cooling process, and improve the integrity and safety of the product.

[0133] By precisely controlling the airflow speed, direction and angle of each airflow nozzle, rapid and uniform cooling can be achieved, improving production efficiency. Optimized airflow parameters can shorten cooling time, reduce production cycle and reduce production costs.

[0134] Based on the temperature distribution information and ambient temperature information, the air flow parameters can be adjusted in real time to ensure that the cooling process always meets the expected target cooling rate. Accurate cooling control helps maintain the flatness of the glass substrate and the stability of the glaze layer, improving the quality and performance of the final product.

[0135] Exemplarily, the airflow control information also includes the airflow type of each of the airflow nozzles; if the glass substrate type corresponding to the glass substrate is any one of silicate, borosilicate, and fluoride, the airflow type includes at least carbon dioxide; if the glaze material type corresponding to the colored glaze is any one of metal oxide, sulfide, and precious metal, the airflow type includes at least nitrogen.

[0136] By selecting the appropriate airflow type, unnecessary chemical reactions can be prevented between the glass substrate and the glaze during the cooling process, thus maintaining their chemical stability and physical properties. The use of nitrogen can effectively protect the glaze layer, prevent metal oxides, sulfides and precious metal materials from oxidizing and discoloring during high-temperature cooling, and maintain their color and luster. Different types of airflow media have different cooling properties, and selecting the most appropriate airflow type can further optimize the cooling effect. The optimized airflow type can improve cooling efficiency, shorten cooling time, and increase production efficiency. By selecting the airflow type, different types of glass substrates and glazes can be flexibly adapted to expand the scope of production application. The appropriate airflow type can reduce the scrap rate caused by improper cooling and improve the product qualification rate.

[0137] The specific implementation of the method of the present application is described below with a specific example.

[0138] First, select ultra-thin glass of appropriate thickness (e.g. 1.6mm) to ensure that its surface is clean and dust-free. The surface of the glass substrate is first ultrasonically cleaned to remove oil and impurities, and then chemically etched to form micro-nano roughness to enhance the bonding between the glaze layer and the glass substrate. Using precision silk-screen printing technology, the glaze is evenly coated on the surface of the pre-treated glass substrate, and the coating thickness is controlled at the micron level to reduce shrinkage differences during firing. Temperature gradient firing:

[0139] Then, a specific firing curve is designed, with low-temperature preheating used in the initial stage, and the temperature is gradually increased to the high temperature required for the glaze layer to be completely solidified. Temperature gradient control is implemented in the high-temperature stage, that is, the temperature is gradually lowered from top to bottom to reduce the thermal stress caused by the temperature difference and ensure the synchronous shrinkage of the glaze layer and the glass substrate.

[0140] Then, before screen printing, the glass substrate is tested using advanced laser leveling technology to ensure that the initial flatness meets the standard. During the firing process, airflow control technology is used to ensure rapid and uniform cooling to protect the flatness of the finished glass.

[0141] Finally, after firing, the glass is cooled quickly and the surface is finely processed by a combination of mechanical polishing and chemical polishing to further eliminate minor unevenness and improve flatness. Finally, quality inspection is carried out to test the flatness, adhesion and color uniformity of the finished product.

[0142] The process parameters corresponding to this specific example are:

[0143] Color glaze viscosity: 1000-1500mPa·s;

[0144] Pretreatment etching depth: 50-100nm;

[0145] Screen printing thickness: 2-5μm;

[0146] Firing temperature range: 600-800°C, heating rate ≤5°C / min;

[0147] Temperature gradient: the top temperature is about 20-30°C higher than the bottom temperature;

[0148] Polishing time: mechanical polishing 5-10 minutes, chemical polishing 10-20 minutes;

[0149] Production equipment used in this specific example:

[0150] High temperature furnace: A high temperature refractory furnace used for firing colored glazes, with a good temperature control system.

[0151] Silk screen printing equipment: high-pressure silk screen printing machine, used to evenly print colored glaze on the glass surface.

[0152] Laser level meter: a precision instrument used to detect the flatness of glass.

[0153] Polishing machine: equipment used for surface treatment of finished products.

[0154] Technical advantages of this specific example:

[0155] Improve flatness: Through advanced silk-screen printing and firing processes, ensure that the flatness of the glass surface meets the requirements of the high-end market.

[0156] High temperature stability: Use high temperature resistant colored glaze materials to improve the stability of the finished product in high temperature environments.

[0157] Long-lasting color: Optimized glaze material formula ensures color durability and anti-fading ability.

[0158] The present application provides a method for processing ultra-thin high-temperature colored glaze glass with high flatness. The method is a processing technology for ultra-thin high-temperature colored glaze glass with high flatness, which is mainly achieved by the following steps: First, an ultra-thin glass substrate with a thickness less than a preset thickness is selected. This step is to ensure the lightness and transparency of the final product. Then, the colored glaze glaze for silk screen printing is prepared. The quality of the colored glaze glaze directly affects the color and texture of the final colored glaze glass. Then, the cavitation effect of ultrasound is used to remove tiny impurities and pollutants on the surface of the glass substrate to improve the surface cleanliness. Through chemical etching treatment, the roughness of the surface of the glass substrate reaches the micro-nano level. This treatment can significantly enhance the bonding force between the glass substrate and the colored glaze glaze, and prevent the colored glaze from falling off or peeling off during high-temperature firing. Further, using precision silk screen equipment, the colored glaze glaze is evenly silk-screened on the surface of the glass substrate to ensure that the thickness of the coating is at the micro-nano level. This step is very critical, and the uniformity and thickness of the coating directly affect the flatness and color consistency of the final colored glaze glass. For example, through experiments and data analysis, a temperature firing curve suitable for firing ultra-thin high-temperature colored glaze glass can be obtained. The curve is divided into four areas: Preheating area: slowly heat up the glass substrate to avoid cracking of the substrate due to excessive temperature difference. Main sintering area: fully sinter the colored glaze at a suitable high temperature to form a stable glaze layer. High-temperature forming area: further increase the temperature to completely fuse the glass and colored glaze to ensure the uniformity and adhesion of the colored glaze layer. Cooling area: control the airflow to quickly and evenly cool the glass substrate after silk-screen printing to avoid deformation caused by temperature difference and protect the flatness of the glass substrate. Furthermore, according to the obtained temperature firing curve, the glass substrate after silk-screen printing is fired in a high-temperature furnace to finally obtain ultra-thin high-temperature colored glaze glass with high flatness.

[0159] The method provided thereby has at least the following beneficial effects:

[0160] 1. High flatness: Through ultrasonic cleaning and chemical etching, the surface of the glass substrate reaches micro-nano roughness, which enhances the bonding force with the glaze. In the cooling zone, air flow control is used to achieve rapid and uniform cooling, avoiding deformation caused by temperature difference and ensuring the flatness of the glass substrate.

[0161] 2. High temperature deformation control: The four areas of the temperature firing curve are reasonably designed, especially the control in the preheating zone and cooling zone, which avoids the deformation of the glass substrate due to excessive temperature difference during high temperature firing.

[0162] 3. Strong adhesion of colored glaze: Chemical etching treatment increases the roughness of the glass substrate surface, enhances the bonding between the colored glaze and the substrate, and avoids the falling off or peeling of the colored glaze during the firing process.

[0163] 4. Uniform color: The micro-nano coating thickness and uniform silk-screen printing process ensure the uniform thickness of the glaze layer, so that the color of the final product is uniform and consistent, improving the appearance and quality of the product.

[0164] 5. Applicable to high-end market: This method solves the problems of insufficient flatness of glazed glass, high-temperature deformation and poor adhesion of glaze in the existing technology, improves the overall performance of the product, and enables it to be better applied to high-end markets, such as architectural decoration, high-end electronic equipment and other fields.

[0165] In summary, the provided processing method not only improves the performance and quality of colored glaze glass, but also expands its application areas, and has important market potential and technological innovation value.

[0166] An embodiment of the present application provides an ultra-thin high-temperature colored glaze glass with high flatness, and the ultra-thin high-temperature colored glaze glass is prepared based on the processing method provided in any embodiment of the present application.

[0167] It should be noted that technical personnel in the relevant field can clearly understand that, for the convenience and conciseness of description, the specific structure of the ultra-thin high-temperature colored glaze glass with high flatness described above can refer to the corresponding process in the embodiments of the ultra-thin high-temperature colored glaze glass processing method with high flatness described in the above embodiments, and will not be repeated here.

[0168] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for processing ultra-thin high-temperature colored glaze glass with high flatness, characterized in that: include: Providing glass substrates and colored glaze materials with thickness less than a preset thickness; The glass substrate is respectively subjected to ultrasonic cleaning and chemical etching so that the roughness of the surface of the glass substrate is at a micro-nano level, so as to enhance the bonding force between the glass substrate and the colored glaze; The colored glaze is evenly screen-printed on the surface of the glass substrate, and the thickness of the screen-printed coating is micro-nano level; Obtaining a temperature firing curve corresponding to the glass substrate after silk-screen printing, wherein the temperature firing curve includes firing information of a preheating zone, firing information of a main sintering zone, firing information of a high-temperature forming zone, and firing information of a rapid cooling zone; The glass substrate after silk screen printing is fired in a preset high-temperature furnace according to the temperature firing curve to obtain the processed ultra-thin high-temperature colored glaze glass; wherein the rapid cooling zone firing information at least includes airflow control information to ensure rapid cooling of the glass substrate after silk screen printing and protect the flatness of the glass substrate; the high-temperature furnace includes a plurality of airflow nozzles, and the airflow nozzles are evenly arranged along the surface of the glass substrate to provide a high-temperature airflow when cooling the glass substrate; the airflow control information includes the airflow velocity, airflow direction and airflow angle corresponding to each airflow nozzle; in the process of cooling the glass substrate, by acquiring the temperature distribution information of the glass substrate, the ambient temperature information and the target cooling rate corresponding to the airflow control information, the airflow velocity, airflow direction and airflow angle corresponding to each airflow nozzle are generated according to the temperature distribution information, the ambient temperature information and the target cooling rate, so as to complete the cooling of the glass substrate.

2. The method according to claim 1, characterized in that The preset thickness is 1.6 mm, and the material of the glass substrate is silicate.

3. The method according to claim 1, characterized in that The colored glaze is mainly composed of glass powder, pigment and varnish. The pigment and glass powder are precisely ground to micro-nano level. The micro-nano level pigment, glass powder and varnish are mixed and fully stirred to form a uniform and delicate colored glaze, which is used to ensure uniform shrinkage of the colored glaze layer during firing.

4. The method according to claim 1, characterized in that: Before the colored glaze material is evenly screen-printed on the surface of the glass substrate, the method further includes: The glass substrate is inspected based on the laser leveling technology to ensure that the surface flatness of the glass substrate is higher than a preset flatness.

5. The method according to claim 1, characterized in that After firing the screen-printed glass substrate in a preset high-temperature furnace according to the temperature firing curve, the method further includes: Mechanically polishing the fired glass substrate; The glass substrate after mechanical polishing is chemically polished to obtain the processed ultra-thin high-temperature colored glaze glass; the mechanical polishing and chemical polishing are used to eliminate tiny unevenness of the glass substrate and improve the flatness.

6. The method according to claim 5, characterized in that The polishing time corresponding to the mechanical polishing is in the range of 5 minutes to 10 minutes, and the polishing time corresponding to the chemical polishing is in the range of 10 minutes to 20 minutes.

7. The method according to claim 1, characterized in that The preheating zone firing information at least includes a preheating temperature, and the preheating temperature corresponds to a temperature range of 300° C. to 500° C., which is used to remove moisture and volatiles on the surface of the glass substrate and reduce stress; The main sintering zone firing information includes at least a sintering temperature, and the sintering temperature corresponds to a temperature range of 600°C to 700°C, which is used to smooth the surface and promote the adhesion of the silk-screen colored glaze; The high temperature forming zone firing information at least includes a forming temperature, and the forming temperature corresponds to a temperature range of 700°C to 800°C, which is used to perform precise flatness processing and color uniformity processing on the glass substrate; The rapid cooling zone firing information also includes a target cooling rate, and the target cooling rate corresponds to a rate range of 400°C / h to 600°C / h to prevent cracking caused by thermal stress.

8. The method according to claim 1, characterized in that: Obtaining a temperature firing curve corresponding to the glass substrate after screen printing, including: Obtaining a glass substrate type, substrate size, and substrate thickness corresponding to the glass substrate; Obtain the glaze material type and glaze silk-screen thickness corresponding to the colored glaze; The temperature firing curve is generated according to the glass substrate type, substrate size, substrate thickness, glaze material type and glaze silk-screen thickness.

9. The method according to claim 8, characterized in that Generating the temperature firing curve according to the glass substrate type, substrate size, substrate thickness, glaze material type and glaze silk-screen thickness includes: Acquire a reference cooling rate, a reference preheating temperature, and a reference sintering temperature corresponding to the glass substrate according to the type of the glass substrate; Calculating the preheating temperature corresponding to the firing information of the preheating zone according to the reference preheating temperature, substrate size and substrate thickness; Calculating the sintering temperature corresponding to the firing information of the main sintering area according to the reference sintering temperature, the glaze silk-screen thickness and the substrate thickness; Calculating the molding temperature corresponding to the firing information of the high-temperature molding zone according to the sintering temperature, the glaze silk-screen thickness, the substrate size and the substrate thickness; The target cooling rate corresponding to the firing information of the rapid cooling zone is calculated according to the reference cooling rate, the glaze silk-screen thickness, the substrate size and the substrate thickness.

10. The method according to claim 9, characterized in that The expression of the preheating temperature includes: ； The expression of the sintering temperature includes: ； The expression of the molding temperature includes: ； The expression of the target cooling rate includes: ； Among them, the is the preheating temperature, is the sintering temperature, is the molding temperature, is the target cooling rate, , and are the reference cooling rate, reference preheating temperature and reference sintering temperature, respectively, is the substrate size, is the thickness of the substrate, is the glaze screen printing thickness, , , , and They are respectively multiple preset adjustment coefficients.

11. The method according to claim 1, characterized in that: The airflow control information also includes an airflow type of each of the airflow nozzles; If the glass substrate type corresponding to the glass substrate is any one of silicate, borosilicate, and fluoride, the gas flow type includes at least carbon dioxide; If the glaze material type corresponding to the colored glaze is any one of metal oxides, sulfides and precious metals, the gas flow type at least includes nitrogen.

12. An ultra-thin high-temperature colored glaze glass with high flatness, characterized in that: The method is prepared by the method according to any one of claims 1 to 11.

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