Production process of concave-convex texture artificial stone with anti-skid function

Abstract

The invention discloses a production process of concave-convex texture artificial stone with an anti-skid function. The production process comprises the following steps: step 1, preparing raw materials; step 2, manufacturing and treating a mold; step 3, mixing and stirring; step 4, molding and preliminary curing; the method has the advantages that the specific concave-convex texture is constructed on the surface of the artificial stone, and the anti-skid particles with high hardness and large friction coefficient are added, so that the friction force between the stone surface and a human body or an object is obviously increased, and various concave-convex texture styles can be flexibly realized; comprising regular stripes, checks, raised grains or complex personalized patterns, can accurately simulate the appearance effects of various natural stones, meets the personalized requirements of different architectural decoration styles, selects high-strength materials as basic bonding materials, ensures that the artificial stone has good compressive strength, bending strength and wear resistance, reduces the maintenance cost, and is suitable for large-scale popularization and application. The service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of artificial stone production, and in particular to a production process of an artificial stone with a concave-convex texture and an anti-slip function. Background Art

[0002] In the field of modern architecture and decoration, stone is widely used. Whether it is indoor floor and wall paving, or outdoor squares, sidewalks and other places, there is a huge demand for stone. Artificial stone comes into being as an important substitute for natural stone. It has the advantages of strong designability and relatively controllable cost. As a material widely used in indoor and outdoor decoration, artificial stone is favored because of its customizability, no radiation, rich colors and other advantages. Artificial stone usually refers to artificial stone solid surface material, artificial stone quartz stone, artificial stone granite, etc. Different types of artificial stone have different compositions. Compared with traditional building materials such as stainless steel and ceramics, artificial stone not only has diverse functions and rich colors, but also has a wider range of applications. Artificial stone is widely used because of its rich colors, customizability and good physical properties.

[0003] However, the existing artificial stone production process focuses more on the bionic appearance and the improvement of overall strength, and has obvious deficiencies in anti-slip performance. Most artificial stones have smooth surfaces. In special environments such as moisture or oil, the friction coefficient is low, which can easily cause pedestrians to slip and cause safety accidents. Especially in public places such as shopping malls, hotels, stations and other areas with large traffic, slip accidents may cause serious personal injury and property loss. The requirements for the aesthetics and functionality of building decoration materials are increasing. Materials with beautiful textures and textures alone are difficult to be widely accepted by the market if they lack anti-slip function. Therefore, there is an urgent need for a production process for artificial stone with concave-convex textures and anti-slip function to provide consumers with an artificial stone that can not only ensure good anti-slip performance but also have beautiful concave-convex textures.

[0004] At present, there is an urgent need for a production process of an artificial stone with a concave-convex texture and an anti-slip function, which can not only ensure good anti-slip performance but also have an artificial stone with a beautiful concave-convex texture, which has extremely important practical significance and broad market prospects. Therefore, the development of a production process of an artificial stone with a concave-convex texture and an anti-slip function has important practical significance. In order to solve the above problem, the present invention proposes a production process of an artificial stone with a concave-convex texture and an anti-slip function. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an artificial stone with a concave-convex texture and an anti-slip function, which can not only ensure good anti-slip performance but also have an artificial stone with a beautiful concave-convex texture. It has extremely important practical significance and broad market prospects, and is a production process for an artificial stone with a concave-convex texture and an anti-slip function to meet the growing demand of the architectural decoration market.

[0006] To solve the above technical problems, the present invention is solved by the following technical solutions: A production process of artificial stone with anti-slip function and concave-convex texture, comprising the following steps:

[0007] Step 1, raw material preparation: Prepare 40-60 parts of natural stone particles with a particle size distribution of 0.5-3 mm. Particles of materials such as quartzite and granite can be selected. Prepare 30-40 parts of special cement, such as sulfoaluminate cement, which has the characteristics of rapid hardening and early strength, facilitating molding. Prepare 5-10 parts of mineral reinforcing fibers with a length of 2-8 mm, such as basalt fibers, to enhance the toughness and crack resistance of the artificial stone. Prepare 3-8 parts of anti-slip particles made of alumina ceramic particles with a particle size of 1-3 mm to endow the artificial stone surface with anti-slip performance. Add appropriate amounts of pigments and water. Pigments are used to mix the color of the artificial stone, and the addition amount of water is 6-10% of the total weight of the raw materials; Use natural stone particles of various particle sizes, such as granite, quartz sand or marble, etc., with a particle size range between 0.5 and 8 mm. Stone powder and crushed stones fill each other to form a dense structure, and the combination of different particle sizes helps to build the basis of concave-convex texture. Particles of different particle sizes fill each other to form a dense packing structure, which helps to build concave-convex texture and improve the texture and hardness of the artificial stone; Select materials with higher hardness and large friction coefficient, such as alumina particles and silicon carbide particles, with a particle size of 1-3 mm, and evenly distribute them on the artificial stone surface to form anti-slip protrusions, significantly enhancing the anti-slip effect; According to the required color effect, select appropriate inorganic or organic pigments, such as iron oxide pigments and phthalocyanine pigments, to make the product color uniform and lasting, meeting diverse decoration needs;

[0008] Step 2, mold making and treatment: Make a mold according to the product design requirements. The inner surface of the mold is designed with a specific concave-convex texture pattern, and the concave-convex depth is controlled between 3-8 mm. The pattern can be geometric shapes or simulate natural stone textures, such as stripes, squares, wavy lines, etc. The inner surface of the mold is specially treated. First, the inner surface is finely polished to remove defects and burrs, and then a high-efficiency mold release agent is evenly sprayed to ensure that the artificial stone can be smoothly demolded after molding and the surface texture is clear and complete;

[0009] Step 3, mixing and stirring process: Add natural stone aggregate, anti-slip enhancer, pigment, curing agent and accelerator to a professional high-speed mixer in sequence, and stir at a speed of 500-700 revolutions per minute for 10-18 minutes to fully mix and evenly distribute all raw materials, ensuring that the anti-slip enhancer is evenly distributed in the mixture and avoiding local agglomeration or uneven distribution, so as to ensure the consistency and stability of the overall anti-slip performance of the artificial stone;

[0010] Step 4, Molding and Preliminary Curing: Pour the well-stirred mixed material into the prepared mold. Adopt the vacuum vibration molding process. First, place the mold in a vacuum environment with a vacuum degree of -0.06 to -0.1 MPa and keep it for 3 to 6 minutes to remove the air bubbles in the material and reduce internal defects. Then, vibrate for 4 to 6 minutes under the conditions of a vibration frequency of 2500 - 3500 times per minute and a vibration amplitude of 1 - 3 mm, so that the material tightly fills the concave and convex textures of the mold, forming a preliminarily cured shape, and at the same time further improving the density and uniformity of the material.

[0011] Step 5, Post-curing and Post-treatment: After the molded artificial stone is placed at room temperature for 1.5 - 3 hours for preliminary stabilization, it is put into a constant temperature curing furnace at 70 - 90 °C for deep curing for 4 - 6 hours to significantly improve the strength, hardness and wear resistance of the artificial stone. After curing is completed, carefully remove the artificial stone from the mold, precisely cut and trim its edges to remove the excess flash and uneven parts. Then, conduct multiple grinding and polishing treatments on the surface. First, use coarse sandpaper to grind and remove the surface defects, and then gradually change to fine sandpaper to improve the surface smoothness, making the concave and convex textures on the surface clearer, more natural and comfortable to touch, while not affecting the anti-slip performance. Finally, conduct a comprehensive cleaning and drying treatment to obtain the finished product of the artificial stone with anti-slip concave and convex textures.

[0012] Preferably, the mass ratio of the natural stone fragments to the natural stone powder is 2:1 - 5:1, and the concave and convex textures of the mold are one or more combinations of regular stripes, squares or wavy patterns.

[0013] Preferably, the pigment is an inorganic pigment, including one or more of iron oxide pigments, chromium oxide pigments or titanium dioxide, and the addition amount of the pigment accounts for 0.5% - 3% of the weight of the natural stone particles.

[0014] Preferably, in the mixing and stirring process, the raw materials are dry-mixed in a mixer for 2 - 4 minutes first, and then wet-mixed with water for 6 - 10 minutes to obtain a uniform artificial stone mixture. The stirring speed is 20 - 40 revolutions per minute. In the molding process, the vibration amplitude of the vibrating table is 0.5 - 2 mm.

[0015] Preferably, the anti-slip particles are surface-cleaned and pre-treated before being added to remove surface impurities and oil stains. The anti-slip particles are surface-activated before being added, and the surface activator is a silane coupling agent or a titanate coupling agent.

[0016] Preferably, in the raw material preparation step, the natural stone fragments are cleaned, dried and sterilized by ultraviolet rays before use. In the curing and post-treatment step, the secondary curing process adopts a segmented heating method, and the number of heating segments is 2 - 4 segments.

[0017] Preferably, in the curing and post-treatment steps, the edges of the artificial stone are rounded, and the radius of the rounded corner is 2-10 mm. In the curing and post-treatment process, the surface is polished with sandpapers of gradually increasing fineness, and the mesh number of the sandpapers increases sequentially from 100 to 1000 meshes.

[0018] Preferably, in the raw material preparation step, the natural aggregate is screened and classified to ensure uniform particle size distribution. In the curing and post-treatment process, the humidity in the curing furnace is controlled at 30% - 50%.

[0019] Preferably, the raw material preparation step: Provide natural stone fragments with a particle size of 0.5-8 mm and natural stone powder with a particle size of 0.05-0.5 mm as aggregates; add a curing agent and an accelerator according to a weight ratio of 100:(1-5):(0.2-2); select anti-slip particles with a particle size of 1-4 mm, and the anti-slip particles are emery, garnet sand or a mixture of both; prepare an appropriate amount of pigments to mix the color of the artificial stone; mold making step: Prepare a mold with concave and convex textures, the depth of the concave and convex textures is 3-10 mm, the height is 2-8 mm, and the inner surface of the mold is coated with a mold release agent; mixing and stirring step: Add the natural stone fragments, natural stone powder, binder, anti-slip particles, pigments, curing agent and accelerator into the mixer in sequence, and stir at a speed of 350-750 revolutions per minute for 6-18 minutes to fully mix and homogenize each component; molding step: Pour the mixed material into the mold, and adopt a process combining vibration molding and vacuum molding. First, vibrate at a vibration frequency of 1500-3500 times per minute for 2-6 minutes, and then maintain at a vacuum degree of -0.06--0.12 MPa for 1-5 minutes to form and preliminarily cure the material in the mold; curing and post-treatment step: After curing at room temperature for 1-3 hours, perform secondary curing at a temperature range of 50-90°C for 2-6 hours, then take out the artificial stone from the mold, polish and finish the surface, and the surface roughness Ra after polishing is 1.6-6.3, and cutting and drilling processing can be carried out according to requirements.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The production process of anti-slip concave-convex textured artificial stone of the present invention constructs specific concave-convex textures on the surface of artificial stone and adds anti-slip particles with high hardness and large friction coefficients, such as alumina or silicon carbide particles, significantly increasing the friction force between the stone surface and the human body or objects. Through professional anti-slip performance tests, its dynamic friction coefficient is improved compared with ordinary artificial stone, effectively reducing the risk of slipping accidents. It is particularly suitable for areas with high anti-slip requirements such as public places, humid environments, and outdoor walkways. At the same time, it can flexibly achieve a variety of concave-convex texture styles, including regular stripes, squares, wavy patterns, or complex personalized patterns. Combining a rich variety of natural aggregates and color mixing options, it can accurately simulate the appearance effects of various natural stones and meet the personalized needs of different architectural decoration styles. It not only endows artificial stone products with unique aesthetic value but also greatly broadens their application scope in high-end commercial buildings, home decoration, and other fields;

[0022] 2. The production process of anti-slip concave-convex textured artificial stone of the present invention selects high-strength natural aggregates to ensure that the artificial stone has good compressive strength, flexural strength, and wear resistance. Its compressive strength is strong, its flexural strength is excellent, and its wear rate is low. During long-term use, it can maintain the integrity and stability of the surface, reduce maintenance costs and frequencies, and extend the service life;

[0023] 3. The unique mixing, vibration, and vacuum-assisted molding process of the production process of anti-slip concave-convex textured artificial stone of the present invention enables the raw materials to be fully and evenly mixed. The material can quickly and tightly fill and preliminarily solidify in the mold, effectively shortening the molding cycle. At the same time, this process has relatively low requirements for production equipment, is easy to operate and control, and is convenient for large-scale production. It can improve production efficiency, reduce production costs, and enhance the competitiveness of products in the market while ensuring product quality;

[0024] 4. The production process of anti-slip concave-convex textured artificial stone of the present invention reasonably utilizes the waste materials from the edges and corners during the processing of natural stones as aggregate raw materials, reducing the over-exploitation and waste of natural stone resources, which is in line with the concept of environmental protection and sustainable development. In addition, the pigments and other materials selected during the production process meet relevant environmental protection standards, reducing potential hazards to the environment and human health, providing a feasible solution for the field of green building materials. Detailed implementation manners

[0025] Unless otherwise clearly specified in the context, nouns without quantity words and nouns modified by "the" include singular and plural referents.

[0026] As used in the specification and claims, the terms "comprising", "including", "having", "can", "containing" and variations thereof as used herein refer to open transitional phrases, terms or words that require the presence of the specified element / step and allow the presence of other elements / steps. However, such description shall also be construed to describe the composition or method as "consisting of" and "consisting essentially of" the recited elements / steps, which allows only the presence of the specified elements / steps and any unavoidable impurities that may result therefrom, and excludes other elements / steps.

[0027] The numerical values in the specification and claims of this application should be understood to include the same numerical values when reduced to the same number of significant figures and numerical values that differ from the said values by less than the experimental error of the conventional measurement techniques used to determine the said values of the type described in this application.

[0028] All ranges disclosed herein include the indicated endpoints and can be combined independently (e.g., the range "2 grams to 10 grams" includes the endpoints 2 grams and 10 grams, and all intermediate values).

[0029] The terms "about" and "approximate" can be used to include any numerical value that can vary without changing the basic function of the value. When used with a range, "about" and "approximate" also disclose the range defined by the absolute values of the two endpoints. For example, "about 2 to about 4" also discloses the range "2 to 4". Generally, the terms "about" and "approximate" can refer to ±10% of the indicated number. However, for temperature, the term "about" means ±1°C.

[0030] Unless otherwise expressly specified, the percentages of elements shall be considered to be weight percentages of the said alloy.

[0031] This disclosure may relate to the temperature of certain method steps. It should be noted that these indicators generally refer to the temperature set by a heat source (such as a furnace), and not necessarily to the temperature that the heated material must reach.

[0032] The following description is used to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments in the following description are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, variations, improvements, equivalent embodiments, and other technical solutions without departing from the spirit and scope of the present invention.

[0033] Example 1

[0034] Prepare quartz sand with a particle size of 0.1 - 2 mm and marble particles with a particle size of 2 - 5 mm as natural aggregates, alumina particles with a particle size of 1 - 3 mm as anti-slip particles, and use iron oxide red pigment to adjust the color. Prepare the curing agent and accelerator according to a weight ratio of 100:2.5:0.8. The mold is designed with striped concave and convex textures with a depth of 3 mm. Add the raw materials to the mixer in sequence, stir at 500 revolutions per minute for 10 minutes, vibrate for 4 minutes after pouring into the mold, then evacuate for 3 minutes. After standing at room temperature for 1.5 hours, place it in a curing furnace at 70 °C for 4 hours. Finally, obtain red anti-slip concave and convex texture artificial stone through edge cutting, surface grinding and polishing, and cleaning and drying.

[0035] Example 2

[0036] I. Raw material preparation

[0037] 1. Base material: Select excellent bond strength and chemical corrosion resistance to provide a stable matrix for the whole material.

[0038] 2. Natural aggregates:

[0039] Select quartz sand with a particle size of 0.5 - 2 mm, which has a high hardness and can enhance the wear resistance of artificial stone.

[0040] Mix with granite gravel with a particle size of 2 - 4 mm to increase the texture and structural stability of the material. The two are mixed according to a mass ratio of 1:2.5.

[0041] 3. Anti-slip particles: Use silicon carbide particles with a particle size of 1.5 mm. Silicon carbide has extremely high hardness and good friction performance, which can effectively improve the anti-slip effect of the artificial stone surface.

[0042] 4. Pigment: Use iron oxide yellow pigment with an addition amount of 1.5% to make the artificial stone show a natural yellow tone.

[0043] Curing agent and accelerator

[0044] II. Mold design and treatment

[0045] The mold is designed with square concave and convex textures. The side length of the square is 5 mm, and the concave and convex depth is 3 mm. The inner surface of the mold is first finely polished to make its surface roughness reach Ra0.4 - Ra0.8, and then a layer of silicone-based release agent is evenly sprayed to ensure that the formed artificial stone can be smoothly demolded and the surface texture is clear and complete.

[0046] III. Mixing and stirring process

[0047] The mixed natural aggregate, silicon carbide anti-slip particles, iron oxide yellow pigment, curing agent and accelerator are added to a high-speed mixer in sequence. The set rotation speed of the mixer is 500 revolutions per minute, and the mixing time is 12 minutes. During the mixing process, the material temperature is controlled at 25 - 30 °C to ensure that all raw materials are fully and evenly mixed, and the anti-slip particles are evenly dispersed throughout the mixture without obvious agglomeration.

[0048] IV. Molding Process

[0049] Pour the well-stirred mixed material into the prepared mold. First, place the mold on a vibrating table. The set vibration frequency is 2500 times per minute, the vibration amplitude is 1 mm, and the vibration time lasts for 4 minutes. Through vibration, air bubbles in the material are effectively removed, making the material more dense. Then, put the mold into a vacuum chamber, evacuate to -0.09 MPa, and maintain for 3 minutes to make the material tightly fill every corner of the mold under a negative pressure environment, forming a shape with clear grid concave and convex textures and prominent anti-slip particles, and initially curing.

[0050] V. Curing and Post-treatment Process

[0051] The formed artificial stone is placed at room temperature (about 25 °C) for 1.5 hours, and then put into a curing furnace at 70 °C for further curing for 4 hours. During the curing process, the humidity in the curing furnace is controlled at about 40% to ensure the uniformity and stability of the curing reaction. After curing, use cutting equipment to precisely cut and trim the edges of the artificial stone, removing excess burrs and irregular parts. Then, use sandpaper gradually refined from 200 mesh to 800 mesh to polish the surface of the artificial stone. First, use coarse sandpaper to remove surface defects and protrusions, and then use fine sandpaper to make the surface smoother and more delicate, while ensuring that the anti-slip effect of the concave and convex textures is not affected. Finally, wash the polished artificial stone with high-pressure water to remove surface dust and impurities, and then through natural drying or low-temperature drying treatment, a yellow artificial stone product with good anti-slip function and beautiful concave and convex textures is obtained.

[0052] Example 3

[0053] I. Raw Material Preparation

[0054] 1. Natural Aggregate:

[0055] Select dolomite powder with a particle size of 0.2 - 1.5 mm. Its texture is delicate, which can make the surface smoother.

[0056] Cooperate with basalt particles with a particle size of 1 - 3 mm, and the mass ratio is 1:3 to improve the strength and stability of the material.

[0057] 2. Anti-slip Particles: Use alumina particles with a particle size of 2 mm. Alumina has good wear resistance and anti-slip properties.

[0058] 3. Pigment: Add titanium dioxide pigment with an addition amount of 2% to obtain a white appearance.

[0059] 4. Curing agent and accelerator: Prepare according to the weight ratio of curing agent, accelerator and promoter of 100:2.5:0.8.

[0060] II. Mold design and treatment

[0061] The mold is designed with wavy concave and convex textures. The height difference between the wave crest and wave trough of the wavy pattern is 4 mm. After the inner surface of the mold is polished to a roughness of Ra0.3 - Ra0.6, a fluorocarbon-based mold release agent is sprayed.

[0062] III. Mixing and stirring process

[0063] Sequentially add natural aggregate, alumina anti-slip particles, titanium dioxide pigment, curing agent and accelerator to a powerful mixer, and stir at a speed of 450 revolutions per minute for 10 minutes. During the stirring process, moderately cool the materials to keep the temperature at 20 - 25°C to ensure the mixing uniformity.

[0064] IV. Molding process

[0065] Pour the mixed materials into the mold, vibrate on a vibrating table at a frequency of 2800 times per minute for 3.5 minutes with a vibration amplitude of 0.8 mm, and then place it in a vacuum chamber to evacuate to -0.085 MPa and hold for 2.5 minutes.

[0066] V. Curing and post-treatment process

[0067] After standing at room temperature for 1.2 hours, place it in a curing furnace at 65°C for 3.5 hours with a humidity of 35% in the curing furnace. After curing, cut and trim the edge of the artificial stone, polish it with 150 - 600 mesh sandpaper, first rinse with water and then dry to obtain a white anti-slip concave and convex texture artificial stone.

[0068] Example 4. A production process of anti-slip concave and convex texture artificial stone, including the following steps:

[0069] Step 1. Raw material preparation:

[0070] Main material: Select a high-strength, weather-resistant material with good adhesion and formability to provide basic structural support and bonding for the entire system, ensuring the stability and strength of the artificial stone after molding;

[0071] Natural stone aggregate: Use natural stone particles of various particle sizes, such as granite, quartz sand or marble, etc., with a particle size range of 0.5 - 8 mm. The stone powder and crushed stones fill each other to form a dense structure, and the combination of different particle sizes helps to build the basis of concave and convex textures. The particles of different particle sizes fill each other to form a dense packing structure, which helps to build concave and convex textures and improve the texture and hardness of the artificial stone;

[0072] Anti-slip enhancer: Select materials with high hardness and large friction coefficient, such as alumina particles and silicon carbide particles, with a particle size of 1-3 mm, and evenly distribute them on the surface of artificial stone to form anti-slip protrusions, significantly enhancing the anti-slip effect;

[0073] Pigment: According to the required color effect, select appropriate inorganic or organic pigments, such as iron oxide pigments and phthalocyanine pigments, etc., to make the product color uniform and lasting, meeting diverse decoration needs;

[0074] Curing agent and accelerator

[0075] Step 2. Mold making and treatment:

[0076] Make a mold according to the product design requirements. The inner surface of the mold is designed with specific concave-convex texture patterns, and the concave-convex depth is controlled between 3-8 mm. The patterns can be geometric shapes or simulate natural stone textures, such as stripes, squares, wavy lines, etc. The inner surface of the mold is specially treated. First, the inner surface is finely polished to remove defects and burrs, and then a high-efficiency mold release agent is evenly sprayed to ensure smooth demolding after the artificial stone is formed and the surface texture is clear and complete;

[0077] Step 3. Mixing and stirring process:

[0078] Add natural stone aggregate, anti-slip enhancer, pigment, curing agent and accelerator into a professional high-speed mixer in sequence, and stir at a speed of 500-700 revolutions per minute for 10-18 minutes to fully mix and evenly distribute all raw materials, ensuring that the anti-slip enhancer is evenly distributed in the mixture and avoiding local agglomeration or uneven distribution, so as to ensure the consistency and stability of the overall anti-slip performance of artificial stone;

[0079] Step 4. Molding and preliminary curing:

[0080] Pour the stirred mixed material into the prepared mold, and adopt the vacuum vibration molding process. First, place the mold in a vacuum environment with a vacuum degree of -0.06--0.1 MPa and keep it for 3-6 minutes to remove air bubbles in the material and reduce internal defects; then vibrate for 4-6 minutes under the conditions of a vibration frequency of 2500-3500 times per minute and a vibration amplitude of 1-3 mm, so that the material tightly fills the concave-convex texture of the mold to form a preliminarily cured shape, and at the same time further improve the density and uniformity of the material;

[0081] Step 5. Post-curing and post-treatment:

[0082] After the formed artificial stone is placed at room temperature for 1.5 - 3 hours for preliminary stabilization, it is put into a constant temperature curing furnace at 70 - 90 °C for 4 - 6 hours of deep curing, significantly improving the strength, hardness and wear resistance of the artificial stone. After curing is completed, the artificial stone is carefully removed from the mold, and its edges are precisely cut and trimmed to remove excess flash and uneven parts; then the surface is subjected to multiple grinding and polishing treatments. First, it is ground with coarse sandpaper to remove surface defects, and then gradually replaced with fine sandpaper to improve the surface finish, making the surface concave and convex texture clearer, natural and comfortable to touch, while not affecting the anti-slip performance; finally, a comprehensive cleaning and drying treatment is carried out to obtain the finished product of anti-slip artificial stone with concave and convex texture.

[0083] The specific steps are as follows: First, the staff selects a material with high strength, good weather resistance, good adhesion and formability to provide basic structural support and adhesion for the whole system, ensuring the stability and strength of the artificial stone after molding. Secondly, the staff uses natural stone particles of various particle sizes, such as granite, quartz sand or marble, etc., with a particle size range of 0.5 - 8 mm. The stone powder and crushed stones fill each other to form a tight structure, and the combination of different particle sizes helps to build the basis of concave-convex texture. The particles of different particle sizes fill each other to form a tightly packed structure, which helps to build concave-convex texture and improve the texture and hardness of the artificial stone. Then, the staff selects materials with high hardness and large friction coefficient, such as alumina particles and silicon carbide particles, with a particle size of 1 - 3 mm, and evenly distributes them on the surface of the artificial stone to form anti-slip protrusions, significantly enhancing the anti-slip effect. The staff then selects appropriate inorganic or organic pigments according to the required color effect, such as iron oxide pigments and phthalocyanine pigments, etc., to make the product color uniform and lasting, meeting diverse decorative needs. At this time, the staff makes a mold according to the product design requirements. The inner surface of the mold is designed with specific concave-convex texture patterns, and the concave-convex depth is controlled between 3 - 8 mm. The patterns can be geometric shapes or simulate natural stone textures, such as stripes, squares, wavy lines, etc. The inner surface of the mold is specially treated. First, the inner surface is finely polished to remove defects and burrs, and then a high-efficiency mold release agent is evenly sprayed to ensure that the artificial stone can be smoothly demolded after molding and the surface texture is clear and complete. At this time, the staff sequentially adds natural stone aggregate, anti-slip enhancer, pigment, curing agent and accelerator into a professional high-speed mixer, and stirs at a speed of 500 - 700 revolutions per minute for 10 - 18 minutes to fully mix and homogenize each raw material, ensuring that the anti-slip enhancer is evenly distributed in the mixture and avoiding local agglomeration or uneven distribution, so as to ensure the consistency and stability of the overall anti-slip performance of the artificial stone. Next, the staff pours the stirred mixed material into the prepared mold and adopts a vacuum vibration molding process. First, the mold is placed in a vacuum environment with a vacuum degree of -0.06 - -0.1 MPa and kept for 3 - 6 minutes to remove the air bubbles in the material and reduce internal defects; then, under the conditions of a vibration frequency of 2500 - 3500 times per minute and a vibration amplitude of 1 - 3 mm, vibrate for 4 - 6 minutes to make the material tightly fill the concave-convex texture of the mold, forming a preliminarily cured shape, and at the same time further improving the density and uniformity of the material. Finally, the staff places the molded artificial stone at room temperature for 1.After initial stabilization for 5 - 3 hours, it is placed in a constant temperature curing furnace at 70 - 90 °C for deep curing for 4 - 6 hours, significantly improving the strength, hardness and wear resistance of the artificial stone. After curing, the artificial stone is carefully removed from the mold, and its edges are precisely cut and trimmed to remove excess flash and uneven parts. Then, multiple grinding and polishing treatments are performed on the surface. First, it is polished with coarse sandpaper to remove surface defects, and then gradually replaced with fine sandpaper to improve the surface finish, making the surface concave and convex texture clearer, more natural and comfortable to touch, without affecting the anti-slip performance. Finally, a comprehensive cleaning and drying treatment is carried out to obtain the finished product of the anti-slip artificial stone with concave and convex texture.

[0084] Those skilled in the art should understand that the embodiments of the present invention shown in the above description are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the said principles, the embodiments of the present invention can have any deformation or modification. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. This specific embodiment is only an interpretation of the present application and does not limit the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A production process of an artificial stone with a concave-convex texture and anti-slip function, characterized by: The following steps are involved: Step 1, raw material preparation: prepare 40-60 parts of natural stone particles, with a particle size distribution of 0.5-3mm, and particles of materials such as quartz stone and granite can be selected, 30-40 parts of special cement, such as sulphoaluminate cement, which has the characteristics of fast hardening and early strength, which is conducive to molding, 5-10 parts of mineral reinforcing fibers, with a length of 2-8mm, such as basalt fibers, to enhance the toughness and crack resistance of artificial stone, 3-8 parts of anti-slip particles, made of alumina ceramic particles, with a particle size of 1-3mm, to give the artificial stone surface Anti-slip performance of the surface, appropriate amount of pigment and water, pigment is used to mix the color of artificial stone, the amount of water added is 6-10% of the total weight of the raw materials; natural stone particles of various particle sizes are used, such as granite, quartz sand or marble, etc., with a particle size range of 0.5-8 mm, stone powder and crushed stone are filled with each other to form a compact structure, and different particle sizes are helpful to build the foundation of concave and convex texture. Particles of different particle sizes are filled with each other to form a compact stacking structure, which helps to build concave and convex texture and improve the texture and hardness of artificial stone; Select materials with high hardness and large friction coefficient, such as aluminum oxide particles and silicon carbide particles, with a particle size of 1-3 mm, and evenly distribute them on the surface of artificial stone to form anti-slip bumps, which significantly enhance the anti-slip effect; according to the required color effect, choose appropriate inorganic or organic pigments, such as iron oxide pigments, phthalocyanine pigments, etc., to make the product color uniform and lasting, meeting diverse decoration needs; Step 2, mold making and processing: Make the mold according to the product design requirements. The inner surface of the mold is designed with a specific concave and convex texture pattern. The concave and convex depth is controlled between 3-8 mm. The pattern can be a geometric shape or simulate the texture of natural stone, such as stripes, squares, waves, etc. The inner surface of the mold is specially treated. The inner surface is first finely polished to remove defects and burrs, and then evenly sprayed with an efficient release agent to ensure that the artificial stone is smoothly demolded after molding and the surface texture is clear and complete; Step 3, mixing and stirring process: add natural stone aggregate, anti-skid enhancer, pigment, curing agent and accelerator into a professional high-speed mixer in sequence, and stir at a speed of 500-700 rpm for 10-18 minutes to fully mix the raw materials and ensure that the anti-skid enhancer is evenly distributed in the mixture to avoid local agglomeration or uneven distribution, thereby ensuring the consistency and stability of the overall anti-skid performance of the artificial stone; Step 4, molding and preliminary curing: Pour the stirred mixture into the prepared mold, and adopt the vacuum vibration molding process. First, place the mold in a vacuum environment with a vacuum degree of -0.06--0.1MPa for 3-6 minutes to eliminate bubbles in the material and reduce internal defects; then vibrate for 4-6 minutes at a vibration frequency of 2500-3500 times / minute and a vibration amplitude of 1-3 mm to make the material tightly fill the concave and convex texture of the mold to form a preliminary cured shape, while further improving the density and uniformity of the material; Step 5, post-curing and post-processing: After the formed artificial stone is placed at room temperature for 1.5-3 hours for preliminary stabilization, it is placed in a constant temperature curing furnace at 70-90℃ for deep curing for 4-6 hours, which significantly improves the strength, hardness and wear resistance of the artificial stone. After the curing is completed, the artificial stone is carefully taken out of the mold, and its edges are precisely cut and trimmed to remove excess burrs and uneven parts; then the surface is subjected to multiple grinding and polishing treatments, first with coarse sandpaper to remove surface defects, and then gradually replaced with fine sandpaper to improve the surface finish, so that the surface concave and convex texture is clearer, more natural and comfortable to touch, while not affecting the anti-slip performance; finally, a comprehensive cleaning and drying treatment is carried out to obtain a finished product of an artificial stone with a concave and convex texture and an anti-slip function.

2. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: The mass ratio of the natural stone fragments to the natural stone powder is 2:1-5:1, and the concave-convex texture of the mold is one or more combinations of regular stripes, squares or wavy patterns.

3. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: The pigment is an inorganic pigment, including one or more of iron oxide pigment, chromium oxide pigment or titanium dioxide, and the added amount of the pigment accounts for 0.5% to 3% of the weight of the natural stone particles.

4. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: In the mixing and stirring process, the raw materials are placed in a mixer and dry mixed for 2-4 minutes, and then water is added and wet mixed for 6-10 minutes to obtain a uniform artificial stone mixture. The stirring speed is 20-40 revolutions per minute. In the molding process, the vibration amplitude of the vibration table is 0.5-2 mm.

5. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: The anti-skid particles are surface cleaned and pre-treated before being added to remove surface impurities and oil stains. The anti-skid particles are surface activated before being added, and the surfactant is a silane coupling agent or a titanate coupling agent.

6. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: In the raw material preparation step, the natural stone fragments are cleaned, dried and sterilized with ultraviolet rays before use. In the curing and post-treatment steps, the secondary curing process adopts a staged heating method with 2-4 stages.

7. The process for producing an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: In the curing and post-processing steps, the edges of the artificial stone are rounded with a radius of 2-10 mm. In the curing and post-processing process, the surface is polished using gradually refined sandpaper with the grit increasing from 100-1000.

8. The process for producing an artificial stone with a concave-convex texture and anti-slip function according to claim 1, characterized in that: In the raw material preparation step, the natural aggregate is screened and graded to ensure uniform particle size distribution. In the curing and post-treatment process, the humidity in the curing furnace is controlled at 30% to 50%.

9. The production process of an artificial stone with a concave-convex texture and anti-slip function according to claims 1-8, characterized in that: The following steps are involved: Raw material preparation steps: providing natural stone fragments with a particle size of 0.5-8 mm and natural stone powder with a particle size of 0.05-0.5 mm as aggregates; adding a curing agent and an accelerator in a weight ratio of 100:(1-5):(0.2-2); selecting anti-skid particles with a particle size of 1-4 mm, wherein the anti-skid particles are corundum, garnet sand or a mixture of the two; preparing an appropriate amount of pigment to adjust the color of the artificial stone; Mold making steps: preparing a mold with a concave-convex texture, the depth of the concave-convex texture is 3-10 mm, the height is 2-8 mm, and the inner surface of the mold is coated with a release agent; Mixing and stirring steps: add natural stone fragments, natural stone powder, binder, anti-slip particles, pigment, curing agent and accelerator into the mixer in sequence, and stir at a speed of 350-750 rpm for 6-18 minutes to fully mix the components; Molding steps: Pour the mixed material into the mold, and use a process combining vibration molding and vacuum molding. First, vibrate at a vibration frequency of 1500-3500 times / minute for 2-6 minutes, and then maintain a vacuum degree of -0.06--0.12MPa for 1-5 minutes to shape the material in the mold and initially solidify it; Curing and post-processing steps: After curing at room temperature for 1-3 hours, secondary curing is carried out at a temperature range of 50-90°C for 2-6 hours, and then the artificial stone is taken out of the mold, and its surface is ground and polished. The surface roughness Ra after grinding and polishing is 1.6-6.3, and it can be cut and drilled according to needs.