Method for preparing radium engraved ceramic with golden flash symbol and application thereof

Abstract

The application belongs to the technical field of ceramic glaze, and particularly relates to a preparation method and application of laser-engraved ceramic with golden flashing symbols. The application provides a preparation method of laser-engraved ceramic with golden flashing symbols, which comprises golden glaze and transparent glaze, and is prepared by matching with a specific firing process. The whole preparation process is simple and easy to operate, the sintering temperature is low, and the safety is high. In terms of preparation raw materials, the laser-engraved ceramic with golden flashing symbols provided by the application does not contain lead and is environmentally friendly in composition. Meanwhile, the golden flashing glaze of the application is more eye-catching than other colored glazes, can make the golden glaze present a golden flashing effect after sintering, and the ceramic symbol is eye-catching. The glaze is not only uniformly filled into the symbol, but also presents a golden flashing luster effect of the symbol from all surfaces, which is beautiful and generous, has a strong gloss, and has excellent wear resistance.

Description

Technical Field

[0001] This application belongs to the field of ceramic glaze technology, specifically relating to a method for preparing and applying laser-engraved ceramics with gold flashing symbols. Background Technology

[0002] Glaze is a silicate. The glaze applied to ceramics is generally made from quartz, feldspar, and clay. These materials are ground, mixed with water, and then applied to the surface of the ceramic body. After firing at a certain temperature, the glaze melts and, as the temperature drops, forms a thin, glassy layer on the ceramic surface. This glaze increases the mechanical strength, thermal stability, and dielectric strength of the ceramic, and protects it from the erosion of liquids and gases. In addition, glaze enhances the appearance of the porcelain and makes it easier to clean and prevents dust from adhering to it.

[0003] Glaze is a thin, glassy layer adhering to the surface of a ceramic body. It is made by mixing mineral raw materials (such as feldspar, quartz, kaolin, and chemical raw materials in a certain proportion and grinding them into a slurry-like liquid), applying it to the surface of the body, and then firing it at a high temperature. Microscopically, it contains glassy substances, a small amount of air bubbles, unmelted quartz particles, and crystals precipitated during cooling. It possesses physical and chemical properties similar to glass, is waterproof, smooth and glossy, not easily stained, and can improve the mechanical strength, thermal stability, and chemical stability of the product. Various decorations can also be used on the glaze surface to enhance the artistic effect of the product. Glazing is an ancient ceramic manufacturing technique that refers to applying glaze slurry to the surface of a formed ceramic body. There are six main methods: dipping, pouring, casting, brushing, sprinkling, and wheel glazing. The appropriate glazing method is used depending on the shape and thickness of the body.

[0004] Currently, there are many types and colors of ceramic glazes. The glazing and sintering processes are difficult and the requirements for glaze color are very high. For example, the golden glitter symbol that people now follow is used as a surface decoration for ceramics.

[0005] The existing laser-engraved ceramics with gold flashing symbols have a complicated manufacturing process, high sintering temperature, and poor safety. Summary of the Invention

[0006] Based on this, one embodiment of this application provides a method for preparing laser-engraved ceramics with gold flashing symbols. This method is simple and highly safe.

[0007] This application provides a method for preparing laser-engraved ceramics with gold flashing symbols, including:

[0008] Take a gold glaze slurry and a transparent glaze slurry. Add the gold glaze slurry to the gaps of the laser-engraved symbol, pre-bake, remove excess gold glaze, sinter, apply the transparent glaze slurry onto the sintered gold glaze, dry, sinter and polish to prepare laser-engraved ceramic with gold flashing symbols.

[0009] The gold glaze slurry comprises the following components in parts by weight: 6 to 10 parts of first ceramic powder, 1 to 3 parts of imitation gold powder, 6 to 8 parts of first diluent, 1 to 3 parts of first varnish, and 0.1 to 0.3 parts of first hardener.

[0010] The transparent glaze slurry comprises the following components in parts by weight: 8 to 12 parts of second ceramic powder, 6 to 8 parts of second diluent, 1 to 3 parts of second varnish, and 0.1 to 0.3 parts of second hardener.

[0011] In one embodiment, the first ceramic powder and the second ceramic powder each independently comprise, by mass percentage, 53% to 55% silicon dioxide, 22% to 24% boron oxide, 8% to 12% aluminum oxide, 7% to 9% calcium oxide and 4% to 6% magnesium oxide.

[0012] The imitation gold powder comprises 40%~44% titanium nitride, 34%~36% silicon oxide, 10%~14% magnesium oxide, 6%~10% potassium oxide and 2%~4% aluminum oxide.

[0013] Optionally, the particle size of the first and second ceramic powders is independently 36μm to 40μm, and the particle size of the imitation gold powder is 74μm to 450μm.

[0014] In one embodiment, the pre-baking conditions for the gold glaze slurry are: temperature 44℃~46℃, time 14min~16min.

[0015] In one embodiment, the sintering conditions for the gold glaze slurry include:

[0016] First, raise the temperature to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min, and hold for 28min~32min;

[0017] Then, the temperature was increased to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min, and then increased to 745℃~755℃ at a rate of 2.8℃ / min~3.2℃ / min, and held for 10min~30min.

[0018] In one embodiment, the transparent glaze slurry is dried at a temperature of 44°C to 46°C.

[0019] In one embodiment, the sintering conditions for the transparent glaze slurry include:

[0020] First, raise the temperature to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min, and hold for 28min~32min;

[0021] Then, the temperature was increased to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min, and then increased to 780℃~820℃ at a rate of 2.8℃ / min~3.2℃ / min, and held for 10min~30min.

[0022] In one embodiment, polishing includes coarse polishing and fine polishing.

[0023] Alternatively, coarse polishing includes rough grinding with metal polishing tools, and fine polishing includes polishing with silica polishing liquid.

[0024] In one embodiment, the first diluent and the second diluent each independently comprise one or more of alcohol diluents, ketone diluents, or ester diluents.

[0025] Optionally, the first hardener and the second hardener each independently include one or more of acrylate hardeners, epoxy resin hardeners and hydroxymethyl acrylate hardeners.

[0026] This application also provides the laser-engraved ceramic with gold flashing symbols prepared by the above-mentioned method.

[0027] This application also provides the application of the aforementioned laser-engraved ceramics with gold glitter symbols in ceramic ornaments.

[0028] Optionally, the ceramic ornament includes a ceramic bezel with a gold glitter symbol.

[0029] This application provides a method for preparing laser-engraved ceramics with gold glitter symbols. The raw materials include a gold glaze slurry and a transparent glaze slurry, combined with a specific firing process. The entire preparation process is simple and easy to implement, with a low sintering temperature and high safety. Regarding the raw materials, the laser-engraved ceramics with gold glitter symbols provided in this application are lead-free and environmentally friendly. Furthermore, the gold glitter glaze of this application is more eye-catching than other colored glazes, allowing the gold glaze to exhibit a gold glitter effect after firing. The ceramic symbols are prominent, and the glaze not only evenly fills the symbols but also presents a gold glitter effect from all sides, resulting in an aesthetically pleasing and elegant product with not only high gloss but also excellent wear resistance. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application and to more completely understand this application and its beneficial effects, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A flowchart illustrating the preparation of laser-engraved ceramics with gold flashing symbols;

[0032] Figure 2 This is a rendering of a finished laser-engraved ceramic piece with a gold glitter symbol. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the embodiments and examples. It should be understood that these embodiments and examples are for illustrative purposes only and are not intended to limit the scope of the present application. The purpose of providing these embodiments and examples is to enable a more thorough and comprehensive understanding of the disclosure of the present application. It should also be understood that the present application can be implemented in many different forms and is not limited to the embodiments and examples described herein. Those skilled in the art can make various modifications or alterations without departing from the spirit of the present application, and the equivalent forms obtained also fall within the protection scope of the present application. Furthermore, numerous specific details are set forth in the following description to provide a fuller understanding of the present application. It should be understood that the present application can be implemented without one or more of these details.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0035] the term

[0036] All references to this application are incorporated herein by reference as if each document were individually incorporated herein by reference. Unless they conflict with the purpose and / or technical solution of this application, all cited references are incorporated herein by reference in their entirety and for all purposes. When references are cited in this application, the definitions of relevant technical features, terms, nouns, phrases, etc., are also incorporated herein by reference. Examples and preferred embodiments of the cited technical features may also be incorporated herein by reference, but only to the extent that they enable the implementation of this application. It should be understood that when the cited content conflicts with the description in this application, this application shall prevail or modifications shall be made adaptably to the description in this application.

[0037] Unless otherwise stated or in case of contradiction, the terms or phrases used herein shall have the following meanings:

[0038] The terms "and / or," "or / and," and "and / or" as used herein include any one of two or more of the related listed items, as well as any and all combinations of the related listed items. These arbitrary and all combinations include any two related listed items, any more related listed items, or a combination of all related listed items. It should be noted that when at least three items are connected by at least two conjunctions selected from "and / or," "or / and," and "and / or," it should be understood that in this application, the technical solution undoubtedly includes technical solutions connected by "logical AND," and also undoubtedly includes technical solutions connected by "logical OR." For example, "A and / or B" includes three parallel solutions: A, B, and A+B. For example, the technical solution of "A, and / or, B, and / or, C, and / or, D" includes any one of A, B, C, and D (that is, a technical solution that is connected by "logical OR"), as well as any and all combinations of A, B, C, and D, that is, combinations of any two or three of A, B, C, and D, and also combinations of all four of A, B, C, and D (that is, a technical solution that is connected by "logical AND").

[0039] In this application, numerical intervals (i.e., numerical ranges) are involved. Unless otherwise specified, the selected numerical distributions within the aforementioned numerical intervals are considered continuous and include the two endpoints (i.e., the minimum and maximum values) of the numerical range, as well as every value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints. In this document, this is equivalent to directly listing every integer. For example, if t is an integer selected from 1 to 10, it means that t is any integer selected from the group of integers consisting of 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. Furthermore, when multiple ranges are provided to describe features or characteristics, these ranges can be merged. In other words, unless otherwise specified, the ranges disclosed herein should be understood to include any and all subranges to which they are included.

[0040] The term "glaze" refers to a continuous vitreous layer, or a mixture of glass and crystals, adhering to the surface of a ceramic body. Glazes may have originated from calcium-containing stones and charcoal ash used in ancient stone-laying cooking, or perhaps inspired by the aesthetic texture of seashells, leading to the conscious use of seashell powder as a raw material. Initially, ceramic artists utilized the phenomenon that kiln ash naturally settles on the ceramic body and can coalesce into glaze, subsequently using plant ash as a raw material for glaze making. Modern glazes used in daily-use ceramics production are divided into lime glazes and feldspar glazes. Lime glazes are made from glaze fruit (a natural mineral similar to porcelain stone) and lime oxide (the main component of which is calcium oxide), while feldspar glazes are mainly composed of quartz, feldspar, marble, kaolin, etc. Adding metal oxides or other chemical components to lime glazes and feldspar glazes results in a wide variety of glaze colors.

[0041] The glaze on a typical porcelain body is 0.1 cm thick, but after firing in a kiln, it adheres tightly to the porcelain body, making the porcelain denser, with a soft luster, and impermeable to water and air, giving it a bright, mirror-like appearance. It also improves durability and chemical stability, preventing contamination, facilitating cleaning, and reducing corrosion.

[0042] The term "mesh count" refers to the number of holes per square inch. A higher mesh count indicates a smaller aperture. Generally, mesh count × aperture (μm) = 15000. For example, a 400-mesh sieve has an aperture of approximately 38 μm; a 500-mesh sieve has an aperture of approximately 30 μm.

[0043] The term "sintering" refers to the transformation of powdered materials into a dense body, a traditional process. This process has long been used to produce ceramics, powder metallurgy, refractories, and ultra-high temperature materials. Generally, after powder is shaped, the dense body obtained through sintering is a polycrystalline material, whose microstructure consists of crystals, glassy components, and pores. The sintering process directly affects the grain size, pore size, and grain boundary shape and distribution in the microstructure, thus influencing the material's properties.

[0044] Macroscopic definition: At high temperatures (not exceeding the melting point), the solid particles of a ceramic green body bond together, the grains grow, the voids (pores) and grain boundaries gradually decrease, and through the transfer of matter, its total volume shrinks and its density increases, eventually becoming a dense polycrystalline sintered body with a certain microstructure. This phenomenon is called sintering.

[0045] Microscopic definition: In a solid state, there is mutual attraction between molecules (or atoms). By heating, the particles gain enough energy to migrate, causing the powder to bind together, generate strength, and lead to densification and recrystallization. This process is called sintering.

[0046] The term "spraying" refers to ceramic spraying, which is one of many surface treatment methods currently on the market. It is a heat treatment process that involves spraying ceramic materials onto the surface of a substrate in the form of thermal spray, forming a dense and uniform ceramic layer.

[0047] Flame spraying machines are the core equipment for ceramic thermal spraying. They melt ceramic materials through heating and then spray the molten ceramic material onto the surface of an object using compressed air. The ceramic material is fully melted and atomized in the spray gun; the molten particles, possessing both thermal and kinetic energy, are sprayed onto the surface of metal or non-metal at a high speed of 170 m / s. This forms a ceramic coating with properties such as wear resistance, high temperature resistance, corrosion resistance, heat insulation, and electrical insulation.

[0048] The term "polishing" in ceramic polishing refers to the process of using soft, elastic or viscoelastic tools and micro-abrasives to further improve the surface finish of ceramics after grinding, so that the surface of the workpiece achieves a mirror-like smoothness. The mechanism of polishing involves the mechanical removal of small parts: the tiny cutting action of the abrasive tip removes the uneven areas of the surface.

[0049] This application provides a method for preparing laser-engraved ceramics with gold flashing symbols, characterized by comprising: taking gold glaze slurry and transparent glaze slurry, adding the gold glaze slurry into the gaps of the laser-engraved symbols, pre-baking, removing excess gold glaze, sintering, applying transparent glaze slurry onto the sintered gold glaze, drying, polishing after sintering, and preparing laser-engraved ceramics with gold flashing symbols.

[0050] The gold glaze slurry comprises the following components in parts by weight: 6 to 10 parts of first ceramic powder, 1 to 3 parts of imitation gold powder, 6 to 8 parts of first diluent, 1 to 3 parts of first varnish, and 0.1 to 0.3 parts of first hardener.

[0051] For example, the first ceramic powder is 6 parts, 7 parts, 8 parts, 9 parts, and 10 parts; the imitation gold powder is 1 part, 2 parts, and 3 parts.

[0052] The first diluent consists of 6, 7, and 8 parts; the first varnish consists of 1, 2, and 3 parts; and the first hardener consists of 0.1, 0.2, and 0.3 parts.

[0053] The transparent glaze slurry comprises the following components in parts by weight: 8 to 12 parts ceramic powder, 6 to 8 parts diluent, 1 to 3 parts varnish, and 0.1 to 0.3 parts hardener.

[0054] For example, a transparent glaze comprises the following components in parts by weight: 8 to 12 parts of second ceramic powder, 6 to 8 parts of second diluent, 1 to 3 parts of second varnish, and 0.1 to 0.3 parts of second hardener.

[0055] For example, 8, 9, 10, 11, and 12 parts of the second ceramic powder; 6, 7, and 8 parts of the second diluent; 1, 2, and 3 parts of the second varnish; and 0.1, 0.2, and 0.3 parts of the second hardener.

[0056] In a specific example, by mass percentage, the first or second ceramic powder independently comprises 53%–55% silicon dioxide, 22%–24% boron oxide, 8%–12% aluminum oxide, 7%–9% calcium oxide, and 4%–6% magnesium oxide; the imitation gold powder comprises 40%–44% titanium nitride, 34%–36% silicon dioxide, 10%–14% magnesium oxide, 6%–10% potassium oxide, and 2%–4% aluminum oxide.

[0057] The gold-plated powder, by mass percentage, comprises 40%–44% titanium nitride, 34%–36% silicon dioxide, 10%–14% magnesium oxide, 6%–10% potassium oxide, and 2%–4% aluminum oxide.

[0058] For example, 40%, 41%, 42%, 43%, 44% titanium nitride; 34%, 35%, 36% silicon oxide; 10%, 11%, 12%, 13%, 14% magnesium oxide; 6%, 7%, 8%, 9%, 10% potassium oxide; and 2%, 3%, 4% aluminum oxide.

[0059] In a specific example, the particle size of the imitation gold powder is 74μm~450μm, and the particle size of the ceramic powder is 36μm~40μm. For example, the particle sizes of the imitation gold powder are 74μm, 80μm, 85μm, 90μm, 95μm, 100μm, 110μm, 120μm, 130μm, 140μm, 150μm, 160μm, 170μm, 180μm, 190μm, 200μm, 210μm, 220μm, 230μm, 240μm, 2... 50μm, 260μm, 270μm, 280μm, 290μm, 300μm, 310μm, 320μm, 330μm, 340μm, 350 μm, 360μm, 370μm, 380μm, 390μm, 400μm, 410μm, 420μm, 430μm, 440μm, 450μm.

[0060] If the powder is too fine, the golden color of the glaze will become lighter after sintering. When preparing the glaze slurry, it is necessary to stir it clockwise until it is evenly mixed, and to pop any air bubbles on the surface of the glaze.

[0061] In a specific example, the pre-baking conditions for the gold glaze slurry are: a temperature of 44℃~46℃ for 14min~16min. For example, 44℃, 45℃, 46℃ for 14min, 15min, and 16min.

[0062] Optionally, the sintering conditions for the gold glaze slurry are as follows: heat to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min and hold for 28min~32min; heat to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min and heat to 745℃~755℃ at a rate of 2.8℃ / min~3.2℃ / min and hold for 10min~30min.

[0063] For example, the sintering conditions for gold glaze slurry include increasing the temperature at rates of 0.8℃ / min, 0.9℃ / min, 1.0℃ / min, 1.1℃ / min, and 1.2℃ / min to 280℃, 290℃, 300℃, 310℃, and 320℃, and holding the temperature for 28min, 29min, 30min, 31min, and 32min, respectively.

[0064] Then, the temperature is increased to 480℃, 490℃, 500℃, 510℃, and 520℃ at rates of 1.4℃ / min, 1.5℃ / min, and 1.6℃ / min, respectively, and then increased to 745℃, 746℃, 747℃, 748℃, 749℃, 750℃, 751℃, 752℃, 753℃, 754℃, and 755℃ at rates of 2.8℃ / min, 2.9℃ / min, 3.0℃ / min, 3.1℃ / min, and 3.2℃ / min, respectively, and held for 10 min, 15 min, 20 min, 25 min, and 30 min.

[0065] Alternatively, the drying temperature of the transparent glaze is 44°C to 46°C; for example, 44°C, 45°C, or 46°C.

[0066] The sintering conditions for the transparent glaze are: heating to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min, and holding for 28min~32min.

[0067] Then raise the temperature to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min, and raise it to 780℃~820℃ at a rate of 2.8℃ / min~3.2℃ / min, and hold for 10min~30min.

[0068] For example, the firing conditions for transparent glaze include heating to 280℃, 290℃, 300℃, 310℃, and 320℃ at rates of 0.8℃ / min, 0.9℃ / min, 1.0℃ / min, 1.1℃ / min, and 1.2℃ / min, respectively, and holding at these temperatures for 28 min, 29 min, 30 min, 31 min, and 32 min.

[0069] Then, the temperature is increased to 480℃, 490℃, 500℃, 510℃, and 520℃ at rates of 1.4℃ / min, 1.5℃ / min, and 1.6℃ / min, respectively, and then increased to 745℃, 746℃, 747℃, 748℃, 749℃, 750℃, 751℃, 752℃, 753℃, 754℃, and 755℃ at rates of 2.8℃ / min, 2.9℃ / min, 3.0℃ / min, 3.1℃ / min, and 3.2℃ / min, respectively, and held for 10 min, 15 min, 20 min, 25 min, and 30 min.

[0070] In a specific example, polishing includes coarse polishing and fine polishing.

[0071] Alternatively, coarse polishing includes grinding with a cast iron polishing disc, while fine polishing includes fine grinding and polishing with silica polishing liquid on a single-sided fine polishing machine.

[0072] Optionally, the first diluent and the second diluent may each independently include, but are not limited to, one or more of alcohol diluents, ketone diluents, or ester diluents.

[0073] Further optionally, the first hardener and the second hardener are each independently including, but not limited to, one or more of acrylate hardeners, epoxy resin hardeners and hydroxymethyl acrylate hardeners.

[0074] This application also provides the laser-engraved ceramic with gold flashing symbols prepared by the above-mentioned method.

[0075] Taking the laser-cut ceramic bezel with a gold glitter symbol effect as an example, it can be understood that it can also include other laser-cut ceramic ornaments with a gold glitter symbol effect.

[0076] This application also provides the application of laser-engraved ceramics with gold glitter symbols in the ceramic decoration industry.

[0077] Alternatively, the ceramic decoration industry includes ceramic bezels or other decorative jewelry rings with gold glitter symbols.

[0078] Specifically, the laser-engraved ceramic manufacturing process of the gold flashing symbol in this application is as follows:

[0079] I. Methods for preparing glaze slurry

[0080] Gold glaze: 8g ceramic powder, 2g imitation gold powder, 7g thinner, 2g varnish, 0.2g hardener.

[0081] Transparent glaze: 10g ceramic powder, 7g thinner, 2g varnish, 0.2g hardener.

[0082] The ceramic powder is made of 54% silicon dioxide, 23% boron oxide, 10% aluminum oxide, 8% calcium oxide, and 5% magnesium oxide.

[0083] The glittery imitation gold powder is composed of 42% titanium nitride, 35% silicon oxide, 12% magnesium oxide, 8% potassium oxide, and 3% aluminum oxide.

[0084] Ceramic powder is sieved through a 400-mesh sieve, and imitation gold powder is sieved through a 40-200 mesh sieve. If the powder is too fine, the gold color of the glaze will be lighter after sintering.

[0085] When preparing the glaze slurry, stir it clockwise until it is evenly mixed, and pop any air bubbles that appear on the surface of the glaze.

[0086] 2. Apply a gold shimmering base glaze.

[0087] Using a glass rod, apply a small amount of glaze to the gaps in the laser-engraved lettering on the bezel. Place it in an oven at 45°C for about 15 minutes to dry. When the glaze is half-dry, use a flat scraper to remove the excess glaze. Except for the lettering to be filled, there should be no glaze on the surface. After drying, pre-sinter it.

[0088] III. Sintering of Golden Glitter Glaze

[0089] The sintering temperature is 750 degrees Celsius. The temperature curve is as follows: increase to 300 degrees Celsius at a rate of 1 degree Celsius / min, hold for 30 minutes, increase to 500 degrees Celsius at a rate of 1.5 degrees Celsius / min, increase to 750 degrees Celsius at a rate of 3 degrees Celsius / min, and hold for 10 to 30 minutes.

[0090] IV. Apply a transparent glaze

[0091] Apply / spray evenly to the surface of the lettering and dry at 45 degrees Celsius.

[0092] V. Sintering of Transparent Glaze

[0093] The sintering temperature is 800℃. The curve is as follows: increase to 300℃ at a rate of 1℃ / min, hold for 30min, increase to 500℃ at a rate of 1.5℃ / min, increase to 800℃ at a rate of 3℃ / min, and hold for 10min~30min.

[0094] VI. Polishing of Symbol Surface

[0095] The bezel is roughly polished using a cast iron polishing pad, and then finely polished using a single-sided fine polishing machine with silica polishing liquid to obtain a ceramic bezel with a gold glitter effect.

[0096] The embodiments of this application will be described in detail below with reference to examples. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. For experimental methods in the following embodiments where specific conditions are not specified, please refer to the guidelines given in this application, or follow experimental manuals or conventional conditions in the art, or follow the conditions recommended by the manufacturer, or refer to experimental methods known in the art.

[0097] In the specific embodiments described below, the measurement parameters involving raw material components may have slight deviations within the weighing accuracy range unless otherwise specified. Temperature and time parameters are subject to acceptable deviations due to instrument testing accuracy or operational precision.

[0098] Example 1

[0099] Taking the laser-cut ceramic bezel with a gold glitter symbol effect as an example, it can be understood that it can also include other laser-cut ceramic ornaments with a gold glitter symbol effect.

[0100] I. Method for preparing glaze slurry:

[0101] Gold glaze: 8g ceramic powder, 2g imitation gold powder, 7g thinner, 2g varnish, 0.2g hardener.

[0102] Transparent glaze: 10g ceramic powder, 7g thinner, 2g varnish, 0.2g hardener.

[0103] Use a 400-mesh sieve to sift ceramic powder and a 40-200 mesh sieve to sift imitation gold powder. If the powder is too fine, the gold color of the glaze after sintering will become lighter.

[0104] When preparing the glaze slurry, stir it clockwise until it is evenly mixed, and pop any air bubbles that appear on the surface of the glaze.

[0105] When preparing the glaze slurry, it is necessary to stir it clockwise until it is evenly mixed and to pop any air bubbles on the surface of the glaze.

[0106] 2. Apply a gold shimmering base glaze.

[0107] Use a glass rod to apply a small amount of glaze to the gaps in the laser-engraved lettering on the bezel. Place it in an oven at 45°C and dry for about 15 minutes. When the glaze is half-dry, use a flat scraper to remove the excess glaze. The surface should be free of glaze except for the lettering to be filled. After drying, pre-sinter it.

[0108] III. Sintering of Golden Glossy Base Glaze

[0109] The sintering temperature was 750 degrees Celsius. The sintering curve was as follows: the temperature was increased to 300 degrees Celsius at a rate of 1 degree Celsius / min and held for 30 minutes; the temperature was increased to 500 degrees Celsius at a rate of 1.5 degrees Celsius / min and held for 10 to 30 minutes at a rate of 3 degrees Celsius / min.

[0110] IV. Apply a transparent glaze

[0111] Apply evenly to the surface of the lettering, dry at 45 degrees Celsius, and then sinter.

[0112] V. Sintering of transparent glaze

[0113] Increase the temperature to 300℃ at a rate of 1℃ / min and hold for 30 minutes; increase the temperature to 500℃ at a rate of 1.5℃ / min; increase the temperature to 800℃ at a rate of 3℃ / min and hold for 10 to 30 minutes.

[0114] VI. Polishing of Symbol Surface

[0115] The bezel is roughly polished using a cast iron polishing pad, and then finely polished using a single-sided fine polishing machine with silica polishing liquid to obtain a ceramic bezel with a gold glitter effect.

[0116] VII. Gloss and Abrasion Resistance Verification

[0117] Through the boiling water test: small pieces peeled off at the intersection of the cuts, and the actual damage within the gridded area was less than 5%; the pencil hardness was greater than 4H, the roughness was less than 0.02, and it had a good glassy luster.

[0118] Comparative Example 1

[0119] I. Method for preparing glaze slurry:

[0120] Gold glaze: 8g ceramic powder, 2g imitation gold powder, 7g thinner, 2g varnish, 0.2g hardener.

[0121] Transparent glaze: 10g ceramic powder, 7g thinner, 2g varnish, 0.2g hardener.

[0122] The ceramic powder was sieved through a 400-mesh sieve, and the imitation gold powder was ball-milled and sieved through a 350-mesh sieve.

[0123] When preparing the glaze slurry, stir it clockwise until it is evenly mixed, and pop any air bubbles that appear on the surface of the glaze.

[0124] When preparing the glaze slurry, it is necessary to stir it clockwise until it is evenly mixed and to pop any air bubbles on the surface of the glaze.

[0125] The remaining parameters are the same as in Example 1. The gloss and abrasion resistance verification showed that the gold color turned light yellow and the shimmering effect deteriorated.

[0126] Comparative Example 2

[0127] Step 3: The sintering process of the golden shimmering base glaze:

[0128] The sintering temperature was 950 degrees Celsius. The sintering curve was as follows: the temperature was increased to 300 degrees Celsius at a rate of 1 degree Celsius / min and held for 30 minutes; the temperature was increased to 500 degrees Celsius at a rate of 1.5 degrees Celsius / min and then increased to 950 degrees Celsius at a rate of 2.5 degrees Celsius / min and held for 10 to 30 minutes.

[0129] The remaining parameters are the same as in Example 1. The gloss and abrasion resistance verification showed that when the temperature was too high, the gold color became lighter and the glitter effect deteriorated.

[0130] The embodiments described above merely illustrate several implementation methods of this application to facilitate a detailed understanding of the technical solutions of this application, but should not be construed as limiting the scope of protection of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Furthermore, it should be understood that after reading the above teachings of this application, those skilled in the art can make various alterations or modifications to this application, and the equivalent forms obtained also fall within the scope of protection of this application. It should also be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the scope of protection of the appended claims. Therefore, the scope of protection of this patent application should be determined by the content of the appended claims, and the specification and drawings can be used to interpret the content of the claims.

Claims

1. A method for preparing laser-engraved ceramic with a gold flashing symbol, characterized in that, include: Take the gold glaze slurry and the transparent glaze slurry; The gold glaze slurry is added to the gaps of the laser-engraved symbols, pre-baked, excess gold glaze is removed, and then sintered. The transparent glaze slurry is applied to the sintered gold glaze, dried, sintered, and then polished to prepare laser-engraved ceramics with gold flashing symbols. The gold glaze slurry comprises the following components in parts by weight: 6 to 10 parts of first ceramic powder, 1 to 3 parts of imitation gold powder, 6 to 8 parts of first diluent, 1 to 3 parts of first varnish, and 0.1 to 0.3 parts of first hardener; The transparent glaze slurry comprises the following components in parts by weight: 8 to 12 parts of second ceramic powder, 6 to 8 parts of second diluent, 1 to 3 parts of second varnish, and 0.1 to 0.3 parts of second hardener; By mass percentage, the first ceramic powder and the second ceramic powder each independently comprise 53% to 55% silicon dioxide, 22% to 24% boron oxide, 8% to 12% aluminum oxide, 7% to 9% calcium oxide and 4% to 6% magnesium oxide; The gold-imitation powder comprises 40%~44% titanium nitride, 34%~36% silicon oxide, 10%~14% magnesium oxide, 6%~10% potassium oxide and 2%~4% aluminum oxide; the particle size of the gold-imitation powder is 74μm~450μm. The sintering conditions for the gold glaze slurry include: First, raise the temperature to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min, and hold for 28min~32min; Then, the temperature was increased to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min, and then increased to 745℃~755℃ at a rate of 2.8℃ / min~3.2℃ / min, and held for 10min~30min.

2. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 1, characterized in that, The particle size of the first and second ceramic powders is independently 36μm to 40μm.

3. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 1, characterized in that, The pre-baking conditions for the gold glaze slurry are: temperature 44℃~46℃, time 14min~16min.

4. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 1, characterized in that, The transparent glaze slurry is dried at a temperature of 44℃~46℃.

5. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 1, characterized in that, The sintering conditions for transparent glaze slurry include: First, raise the temperature to 280℃~320℃ at a rate of 0.8℃ / min~1.2℃ / min, and hold for 28min~32min; Then, the temperature was increased to 480℃~520℃ at a rate of 1.4℃ / min~1.6℃ / min, and then increased to 780℃~820℃ at a rate of 2.8℃ / min~3.2℃ / min, and held for 10min~30min.

6. The method for preparing laser-engraved ceramic with a gold flashing symbol according to any one of claims 1 to 5, characterized in that, Polishing includes rough polishing and fine polishing.

7. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 6, characterized in that, Rough polishing includes coarse grinding with metal polishing tools, while fine polishing includes polishing with silica polishing liquid.

8. The method for preparing laser-engraved ceramic with a gold flashing symbol according to any one of claims 1 to 5, characterized in that, The first diluent and the second diluent each independently include one or more of alcohol diluents, ketone diluents, or ester diluents.

9. The method for preparing laser-engraved ceramic with a gold flashing symbol according to claim 8, characterized in that, The first and second hardeners each independently comprise one or more of acrylate hardeners, epoxy resin hardeners, and hydroxymethyl acrylate hardeners.

10. The laser-engraved ceramic with a gold flashing symbol prepared by the method of any one of claims 1 to 9.

11. The application of the laser-engraved ceramic with gold flashing symbols as described in claim 10 in ceramic ornaments.

12. The application according to claim 11, characterized in that, The ceramic ornaments include a ceramic bezel with gold glitter symbols.

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