China Hunan Yibeinuo New Material Co., Ltd. Company Cases

In industrial production, equipment wear is a major concern for companies. To reduce downtime for maintenance and replacement, many companies choose wear-resistant ceramic liners to protect key components. When purchasing, customers are concerned about the price and lifespan of wear-resistant ceramic liners, and quotes vary significantly between manufacturers. Why Users Care About Price Equipment in industries such as metallurgy, power generation, cement, and mining is often subject to high temperatures, high impact, and intense wear. Without wear-resistant liners, equipment is easily worn out, requiring downtime for repairs and increasing operating costs. Wear-resistant ceramic liners offer a one-time investment, ensuring long-term stable operation and reducing maintenance frequency, but market prices vary significantly. Factors Influencing Price Raw Materials 1. The core is the alumina ceramic sheet. The alumina content determines its hardness and wear resistance. 2. Low-end products have an alumina content of around 70%, resulting in limited hardness and a short lifespan. High-end products have an alumina content of over 95%, a hardness close to Mohs 9, and excellent wear resistance, but the higher the content, the higher the cost. 3. The density and dimensional accuracy of the ceramic sheet also affect its wear resistance. Low-density material is prone to microcracks and easy to break off under high impact, while high-density material offers high compressive strength, resistance to cracking, and a long lifespan.   Production Process Dry pressing offers low cost and is suitable for large production runs, but has limited density and average wear resistance. Hot pressing uses high-temperature pressure to form the product, resulting in a dense structure, high cost, and excellent performance. Vacuum sintering is an advanced process that allows for a long product lifespan, but the price is 20%-30% higher than standard products. Some companies use traditional processes to save costs, resulting in price differences between similar products. Installation Method Adhesive installation: Low cost, fast, and cost-effective, but high temperatures (over 200°C) can easily cause the ceramic sheet to break off. Stud welding: Studs are welded onto a steel substrate and then secured to the ceramic plate. This method offers high installation costs but provides a secure bond and is suitable for high-temperature, high-impact environments. Dovetail groove + glue + studs: This integrated process combines strength and flexibility, offering a long service life but also high costs. The installation method affects both initial investment and overall lifecycle costs. A steel plant purchased two types of lining platesScheme A: Low-priced lining plate, unit price is about 140USD/㎡, pasted and installed, the actual life is partially fallen off in less than 8 months.Scheme B: High-quality lining plate, unit price is about 210 USD/m2, fixed studs, actual life exceeding 2 years and still intact and few maintenance times.The results show that although the initial investment of high-quality lining plates is high, their life span is more than 3 times, and the overall cost is lower. Balance price and use valueThe price difference between wear-resistant ceramic lining plates is essentially the difference in quality. When purchasing:1. Focus on the alumina content rather than just looking at the quote.2 . Preferring to mature processes such as hot pressing and vacuum sintering to avoid low-end processes.3. Choose the appropriate installation method according to the working conditions and do not greed for the low-price paste method.4. Comprehensive ROI calculates the comprehensive ROI in combination with lifespan and maintenance costs.5. Select manufacturers with engineering cases and complete after-sales service, to control the budget and ensure the long-term and stable operation of the equipment. The price of wear-resistant ceramic lining is affected by multiple factors such as raw materials, production technology, and installation methods. Low-priced products seem to save procurement costs, but their short lifespan and frequent maintenance increase long-term costs. When purchasing, enterprises should consider the price and life in a comprehensive way, and choose appropriate lining to reduce costs and increase efficiency to improve equipment operation stability.

Large-diameter wear-resistant ceramic elbows (typically those with a diameter ≥300mm) are primarily used to transport high-hardness, highly abrasive media (such as slurry, coal dust, sand, and gravel). Their performance and lifespan are closely related to operating specifications, operating condition control, and maintenance measures.   Installation Precautions Alignment and Fixing: During installation, ensure the piping system is concentrically aligned to avoid misalignment that could cause localized stress cracking in the ceramic layer. Use flexible supports or compensators to reduce stress caused by thermal expansion and contraction or vibration. Welding and Connecting: Avoid direct welding on the ceramic part (ceramic is not resistant to high-temperature shock). When welding steel pipe sections, keep a clear distance from the ceramic layer to prevent ceramic dislodging due to high temperatures. When connecting flanges, tighten bolts evenly to avoid unilateral stress. Flow Direction Markings: Pay attention to the flow direction markings (such as arrows) on the ceramic lining of the elbow to ensure the media flow direction is consistent with the design to avoid reverse erosion and wear.   Regular Inspection and Maintenance Inspect quarterly: Focus on checking the outer wall of the elbow for bulges, cracks, or dust/powder leakage. These are often early signs of ceramic layer delamination or cracking. Clean up accumulated material: To prevent localized buildup and erosion caused by biased flow, it is recommended to use compressed air or soft tools; do not use metal hammers.   Avoid cutting and secondary processing Chip-type ceramic elbows must not be cut or welded. Once the integrity of the ceramic layer is damaged, it is very likely to start delamination at the cut. If on-site adjustments are necessary, it is recommended to use self-propagating high-temperature synthesis (SHS) integral ceramic elbows, plasma cutting, and polishing.   System Design and Layout Optimization The elbow curvature radius should be ≥ 1.5 times the pipe diameter. A smaller radius will increase erosion wear. The distance between two elbows should be ≥ 6 times the pipe diameter to avoid localized over-wear caused by eddy current accumulation.   Emergency Measures for Abnormal Operating Conditions If localized ceramic delamination is detected, high-temperature wear-resistant repair adhesive and ceramic chips can be used for temporary repair. However, the entire section must be replaced as soon as possible to prevent wear through the metal substrate and leakage.   The service life of large-diameter, wear-resistant ceramic elbows (typically 3-8 years) depends on operational control and maintenance. The key is to avoid excessive erosion, extreme temperature fluctuations, mechanical shock, and media corrosion. Regular inspections and timely addressing of minor hazards can effectively reduce maintenance costs and ensure stable conveying system operation.

Large-diameter wear-resistant ceramic elbows, due to their excellent wear resistance, are widely used in industries such as mining, power generation, and metallurgy that transport highly abrasive media. To prevent ceramic shedding in large-diameter wear-resistant ceramic elbows, the key lies in comprehensive optimization of structural design, installation method, material selection, and construction quality. Specific recommendations are as follows:   Optimizing the bonding process between the ceramic and the substrate Inlaid structure: Utilizing mechanical interlocking designs such as dovetail grooves and snap-in slots, this creates a 360° mechanical self-locking force. The interlocking ceramic blocks adhere tightly to the inner wall of the steel pipe, significantly reducing the risk of shedding and enhancing the bond between the ceramic and the metal substrate. The dovetail snap-in structure is suitable for high-temperature (>500°C) operation and relies entirely on mechanical fastening, not adhesives. High-strength adhesive: Select a high-temperature and impact-resistant epoxy resin or inorganic adhesive to ensure a tight bond between the ceramic and the substrate. Welding Fixing: For perforated ceramic sheets, secure them with a steel mesh or bolts on the back for double reinforcement.   Optimize Bonding Layer Design A transition bonding layer should be designed between the ceramic and the elbow base material (usually steel). This can be achieved using high-strength epoxy resin glue, high-temperature inorganic adhesives, or welding or inlaying metal clamps for auxiliary fixing (especially suitable for high-temperature and high-pressure applications). The bonding layer thickness should be uniform (generally 3-5mm) to avoid areas of excessive thickness that may weaken the bond.   Installation Method: Avoid simple gluing; multiple fixing methods are recommended. For high-temperature environments (>350°C): Use stud welding with ceramic cap protection to prevent exposed welds and enhance impact resistance. For medium- and low-temperature environments (

The dynamic powder selector in cement plants is a core equipment in cement production, mainly used to grade cement raw materials or clinker according to particle size (separating fine powder from coarse powder). Its internal components (such as rotors, guide vanes, shells, etc.) are subject to long-term erosion and wear by high-speed dust airflow.Aluminum oxide ceramic lining plates are commonly used for the protection of guide cones/shells (dust erosion area) and air inlets (high concentration particle impact area)Advantages of lining alumina ceramic sheetsUltra wear-resistant: The Mohs hardness of wear-resistant alumina ceramic reaches 9 levels (second only to diamond), and its wear resistance is more than 10 times that of high chromium steel. It can resist long-term erosion from cement particles (hardness 6-7 levels).Extend equipment lifespan: Traditional metal components need to be replaced in 3-6 months, while ceramic lining plates can be used for 3-5 years, significantly reducing downtime and maintenance frequency.Reduce maintenance costs: Ceramic tiles are fixed with high-strength adhesive or bolts, and can be replaced separately after local wear without the need to disassemble the powder selection machine as a whole.Improving operational efficiency: The ceramic surface is smooth, reducing material accumulation and wind resistance, which helps maintain powder selection accuracy and airflow stability. Corrosion resistance: Ceramics have strong chemical inertness and can withstand alkaline dust and high temperatures (≤ 800 ℃) in cement production, avoiding metal corrosion and material adhesion. Practical application casesThe rotor blades of a dynamic powder selector on a 5000t/d cement production line were originally made of high chromium alloy, which needed to be welded every 4 months. After switching to alumina ceramic lining plates, the wear decreased by 90%. The ceramic plates were only replaced once every 2 years, saving over 500000 yuan in maintenance costs annually. Selection suggestionsWear-prone areas: Use 10-20mm thick ceramic tiles, double fixed with bolts and adhesiveComplex surface: using irregular ceramic lining plates (such as curved or trapezoidal) for bondingOperating condition: Select alumina ceramics with a purity of 92/95% or higher Alumina ceramic lining is an ideal choice for upgrading the wear resistance of dynamic powder selection machines, especially suitable for cement production lines with high dust concentration and strong erosion.

During the sintering process of ceramics, the mass changes very little, but the volume reduction ratio can exceed 40%, which is the key factor that causes the density of ceramics to increase. So, why does the volume of ceramics shrink during sintering? Gas escape and pore reduction: Ceramics are sintered from raw material powders, and both the raw material powders and the ceramic body contain a certain amount of gas and pores. Under high-temperature sintering conditions, a large amount of gas in the body will escape, and the pores will decrease or even disappear, thereby reducing the volume of the ceramics and increasing the density.   Moisture and impurity volatilization: The raw material powders used to fire ceramics vary, and the amount of impurities they contain is also different, but the impurity content is usually lower. Some impurities will decompose and volatilize in a high-temperature environment, causing the ceramic raw material particles to combine more tightly, thereby causing the ceramic volume to shrink.   Particle movement and structural reorganization: During high-temperature sintering, the crystal structure of the ceramic will change to a more stable state, and the mobility of the raw material particles will gradually increase. During this process, the raw material particles will spontaneously fill the original voids in the green body and the holes left after the volatilization of gas, impurities, and water, resulting in a decrease in the volume of the ceramic and an increase in density.   During the ceramic sintering process, although the loss of gas, water, and impurities will cause a certain degree of decline in the quality of the ceramic, the reduction in quality is very small. In comparison, the reduction ratio of the ceramic volume can reach 40%, so the density of the ceramic will increase significantly during the sintering process, and density has therefore become an important indicator of the degree of ceramic sintering.

During blast furnace production, iron ore, coke, and slag flux (limestone) are loaded from the top of the furnace. The loading trolley plays an important role as the main means of transportation. Since most of the ore and coke loaded in the car have relatively sharp edges, the lining of the trolley is seriously worn and eroded. At the same time, due to the heavy weight of the trolley, the wire rope, reducer, and other loads are large, and failures are very likely to occur, causing significant economic losses. Therefore, to improve the service life of the trolley, it is necessary to solve the problems of erosion resistance, wear resistance, and the dead weight of the trolley lining. After comparative experiments by multiple companies, the use of wear-resistant ceramic linings is very effective. Wear-resistant ceramic linings use aluminum oxide as the main raw material and rare metal oxides as flux. After high-temperature sintering at 1700℃, they are combined with special rubber and high-strength organic adhesives, respectively. Wear-resistant ceramic linings can also be used alone as linings. The wear-resistant ceramic lining has a high hardness, Rockwell hardness of 80-90, which is harder than minerals such as ore and coal ash; it has strong wear resistance, and its wear resistance is equivalent to 266 times that of steel plates. It has a low density and is easy to process. It can be cut when vulcanized with rubber, and can be twisted and assembled, without being restricted by the shape, size, and installation location of the equipment. The wear-resistant ceramic lining can only achieve the effect of ceramic sheets being firm and not falling off if it is operated according to a strict pasting process. First, use a sandblasting gun, angle machine, or wire brush to clean the surface to be pasted to make it present a metallic luster. The rougher and cleaner the surface, the better the pasting effect; then use alcohol to clean the surface to be pasted to remove surface oil; mix the adhesive evenly in a certain proportion and apply it to the surface to be pasted, and then paste the wear-resistant ceramic linings one by one, and knock with a rubber hammer to make them in close contact. After using the wear-resistant ceramic lining, the weight of the blast furnace charging trolley is reduced, which reduces the load on the main winding motor and reducer, and also reduces the wear on the wire rope and rail. The wear-resistant ceramic lining is used as the lining of the blast furnace charging trolley, which reduces the wear of the equipment, improves the reliability of the blast furnace charging equipment, and ensures the stable and high production of the blast furnace.

Wear-resistant ceramic sheets are a high-performance engineering ceramic material. With its excellent wear resistance, high hardness, and excellent corrosion resistance, it has become a key solution for the industrial field to combat wear. The following is a detailed description of its core performance and application scenarios: Core performanceUltra-high hardness and wear resistance: The hardness can reach HRA88-95 (Rockwell hardness), second only to diamond, and more than 10 times that of manganese steel. The wear resistance is 266 times that of manganese steel and 171 times that of high-chromium cast iron, which greatly extends the life of the equipment. Excellent impact resistance: The toughness is improved through toughening technology (such as zirconium oxide toughening, composite structure), and it can withstand a certain intensity of mechanical impact. Strong chemical corrosion resistance: Acid and alkali corrosion resistance (except hydrofluoric acid), suitable for corrosive environments such as the chemical industry and wet operations. Lightweight design: The density is only 3.6-4.2 g/cm³, which is half of that of steel, reducing the load on the equipment. High bonding strength: Using special adhesives or welding processes, the bonding strength with the metal matrix is ​​≥30 MPa, and it is not easy to fall off. Application scenarios:Mining and cement industry: chutes, fan impellers, powder selector blades, mill linings, conveying pipelines. Resist erosion and wear of high-hardness materials such as quartz sand and slag, and extend the life of equipment by 5-8 times. Low friction coefficient: The surface is smooth, reducing material flow resistance and energy consumption. Power industry (coal-fired power plants): coal conveyors, coal mill outlet pipes, dust collectors, fan volutes, solve the erosion and wear of coal powder particles on the pipe wall, and reduce the frequency of shutdown and maintenance. Iron and steel metallurgical industry: blast furnace coal injection pipes, sintering machine hoppers, dust removal pipes, coking guide troughs. Resist the wear of high-temperature dust and metal particles, and replace traditional cast stone liners. Chemical and coal washing: cyclone linings, flotation tanks, mixing tanks, slurry conveying pipelines. Resist the combined wear and corrosion conditions of acid-base media and ore slurry. Engineering machinery: ceramic linings of engineering machinery, pump truck pipelines can extend the service life by 5-10 times. Port: Lining of the ship unloader hopper and pneumatic conveying pipeline equipment to reduce the friction loss of ore and other materials on equipment. Selection suggestionsHigh impact working conditions: Choose toughened alumina ceramics (such as ZrO₂ toughened) or composite ceramic steel plates.High temperature environment (＞200℃): Welding installation is preferred, or inorganic adhesives are used.Corrosive environment: Ensure that the purity of the ceramic is ＞95% to avoid chemical erosion caused by impurities. Product highlightsWear-resistant ceramic sheets not only have excellent performance, but also have the following comprehensive advantages:Economic: Long-term use costs are lower than traditional materials, reducing spare parts replacement and maintenance expenses.Environmental protection: Long-life design reduces resource consumption and carbon emissions.Customization support: Size (10mm×10mm to 100mm×100mm) and thickness (5mm-50mm), suitable for different equipment Wear-resistant ceramic sheets have become the preferred protective material in heavy wear industries by significantly reducing equipment wear rate and downtime. In actual applications, the ceramic thickness (commonly used 5-50mm), size, and installation process need to be customized according to the working conditions to maximize economic benefits.

In the huge system of cement production, the material transportation link is like the blood vessels of the human body, which runs through the whole process and is crucial. Cement materials have the characteristics of high particle hardness, large conveying volume, and long conveying distance, which places extremely strict requirements on the conveying pipeline. Alumina ceramic pipes came into being under such a background, so what unique advantages does it have in cement transportation?   From the perspective of wear resistance, alumina ceramic pipes can be called "wear-resistant masters". Its inner wall is made of high-purity alumina ceramic material and is sintered at high temperature. This ceramic material has extremely high hardness, with a Mohs hardness of about 9, which is far higher than ordinary steel materials. During the cement transportation process, cement particles continue to scour the inner wall of the pipe, and ordinary steel pipes may suffer severe wear in a short time, resulting in wall thickness reduction, leakage, and other problems. The alumina ceramic pipe can effectively resist the wear of cement particles with its hard inner wall, and its wear resistance is 5-10 times that of ordinary steel pipes. For example, in a cement clinker conveying pipeline, when ordinary steel pipes are used, some severely worn pipe sections need to be replaced every year. After using alumina ceramic pipes, the service life of the pipes is extended to more than 5 years, which greatly reduces the maintenance cost and downtime for maintenance.   In terms of conveying efficiency, alumina ceramic pipes also perform well. The surface of its ceramic lining is smooth, and the roughness is only 1/5 - 1/10 of that of steel pipes. This greatly reduces the resistance of cement materials when flowing in the pipeline, and can be conveyed at a higher flow rate. According to actual tests, under the same conveying pressure, the flow rate of cement conveyed by alumina ceramic pipes can be increased by 20%-30 % compared with ordinary steel pipes. For large-scale cement production companies, this means that they can increase the conveying volume of cement and improve production efficiency without adding too much power equipment.   In addition, alumina ceramic pipes have good high temperature resistance. In cement production, some high-temperature materials such as cement clinker and high-temperature gas need to be conveyed through pipelines. Alumina ceramics can maintain stable physical and chemical properties in high-temperature environments above 1000°C, and will not deform, soften or be damaged by high temperatures. This enables alumina ceramic pipes to safely and stably transport high-temperature cement materials, ensuring the continuity of the production process.   At the same time, alumina ceramic pipes also have a certain degree of corrosion resistance. During the cement production process, the material may contain a small amount of acidic or alkaline substances, which will cause corrosion to the pipe during long-term transportation. Alumina ceramics have strong corrosion resistance to most acidic and alkaline substances, which can effectively prevent the pipeline from leaking due to corrosion and extend the service life of the pipeline.   In the complex and critical link of cement transportation, alumina ceramic pipes provide cement companies with reliable and efficient material transportation solutions with their unique advantages such as excellent wear resistance, efficient transportation capacity, good high temperature resistance and corrosion resistance, and become an indispensable and important equipment in cement production.

When choosing 92% or 95% alumina ceramic sheets, you need to consider multiple factors such as the use environment, performance requirements, and cost. The following are some reference points: Use environment Chemical environment: If the ceramic sheet will be exposed to corrosive chemicals such as strong acids and alkalis, 95% alumina ceramic sheets are a more suitable choice due to their higher alumina content and better corrosion resistance. For example, in application scenarios such as the lining of chemical raw material storage tanks and the inner wall of chemical delivery pipelines, 95% alumina ceramic sheets can better resist chemical erosion and extend the service life of equipment.   Temperature environment: For high temperature environments, 95% alumina ceramic sheets have better high temperature resistance and can withstand higher temperatures without deformation or performance degradation. For example, in high temperature applications such as high temperature components of aircraft engines and heating element supports of industrial furnaces, 95% alumina ceramic sheets are more reliable. If the ambient temperature is relatively low, 92% alumina ceramic sheets can usually meet the requirements and have certain cost advantages. Mechanical environment: In high-friction, high-impact mechanical environments, such as wear-resistant linings of mining machinery, material conveying pipelines in the cement industry, etc., the high hardness and high wear resistance of 95% alumina ceramic sheets can better resist wear and impact, reduce replacement frequency, and improve equipment operation efficiency. However, if the mechanical stress is small, 92% alumina ceramic sheets can also provide sufficient wear resistance and reduce costs.     Performance requirements Strength and hardness: The bending strength of 95% alumina ceramic sheets is ≥ 300MPa, and the Vickers hardness is ≥1200HV10; while the bending strength of 92% alumina ceramic sheets is ≥ 280MPa, and the Vickers hardness is ≥1000HV10. If the equipment or components need to withstand greater pressure, wear, or impact, such as the lining plates and ceramic plungers of mining machinery, the high strength and high hardness of 95% alumina ceramic sheets can provide better support and wear resistance, and extend the service life.   Fracture toughness: The fracture toughness of 95% alumina ceramic sheets is 3.2MPa・m^(1/2), which is slightly higher than the 3.0MPa・m^(1/2) of 92% alumina ceramic sheets. In working conditions where there may be impact or stress concentration, the fracture toughness of 95% alumina ceramic sheets is more advantageous, which can reduce the risk of ceramic sheet rupture and improve the safety and reliability of components.   Electrical insulation performance Alumina ceramics have excellent electrical insulation performance. 95% alumina ceramics have better insulation performance, higher resistivity, and more stable dielectric constant. Using 95% alumina ceramics can improve the stability and reliability of the circuit, reduce the risk of leakage and short circuit, and ensure the normal operation of electronic equipment.   Cost factors The production cost of 92% alumina ceramic sheets is relatively low, and the price is cheaper. In some cases where the performance requirements are not extremely stringent and the budget is limited, such as ceramic pipes, ordinary ceramic linings, etc., 92% alumina ceramic sheets are a more cost-effective choice, which can reduce production costs while meeting basic usage requirements.

To judge the quality of wear-resistant ceramic lining glue, you can start from the following aspects:   Appearance and packaging Glue appearance: High-quality glue usually has a uniform texture, without precipitation, stratification or agglomeration. If the glue has obvious particles, turbidity, discoloration, or is uneven, it may mean that there is a problem with the quality.   Packaging label: The product name, model, specification, production date, shelf life, ingredients, instructions for use, precautions, and other information should be marked on the packaging of regular products. If the label is incomplete or unclear, it may be an irregular product, and its quality is difficult to guarantee.   Physical property test Bond strength: This is a key indicator to measure the quality of glue. It can be tested by tensile test, shear test, and other methods. According to relevant standards, the ceramic sheet bonded by glue is stretched or sheared with the substrate, and the maximum force value at the time of destruction is measured and converted into bond strength. Generally speaking, the shear strength of good quality glue should not be less than 15MPa at room temperature when steel-ceramic bonding.   Hardness: Appropriate hardness helps the glue maintain good performance in wear-resistant applications. It can be measured by tools such as Shore hardness tester. Generally, the hardness of wear-resistant ceramic lining glue is ideal between Shore D 70-90. Too hard or too soft may affect its wear resistance and impact resistance.   Flexibility: Evaluated by bending test or flexibility tester. Paste the ceramic sheet coated with glue on the flexible substrate, then bend it to observe whether the glue cracks or falls off. High-quality glue can still maintain good bonding state under a certain degree of bending deformation, showing good flexibility and being able to adapt to slight deformation of the equipment during operation. Chemical performance test Corrosion resistance: Soak the ceramic sheet coated with glue in different chemical media, such as acid, alkali, salt solution, etc., and observe the changes in the appearance and bonding properties of the glue after a certain period. After soaking for a specified time, good quality glue should not have obvious swelling, discoloration, shedding, etc., and the decrease in bonding strength should not exceed the specified value. For example, in the acid resistance test, after soaking in a 5% sulfuric acid solution for 24 hours, the glue performance remains stable.   High temperature resistance: Use instruments such as thermogravimetric analyzers and differential scanning calorimeters to simulate the use environment of glue at different temperatures, and observe its thermal stability, weight loss, and glass transition temperature. Good wear-resistant ceramic lining glue should be able to maintain the stability of its physical and chemical properties within the normal operating temperature range of the equipment, and no decomposition, carbonization, etc. will occur.   Practical application test Simulated working condition test: According to the actual working conditions of the equipment, such as the material flushing speed, particle size, temperature, humidity, etc., a similar working condition environment is simulated in the laboratory, and the test pieces with ceramic sheets are tested. Observe the wear resistance and bonding performance of the glue under the simulated working conditions. If the ceramic sheet can remain firmly bonded for a long time under the simulated working conditions, and the glue has no obvious wear and damage, it means that the glue quality is good.   Long-term use tracking: For the glue that has been used in the actual equipment, long-term tracking observation is carried out. Understand its durability, reliability, etc., during actual operation. The quality of the glue is comprehensively evaluated by regularly checking the bonding state of the ceramic sheet and the wear of the glue. If the ceramic sheet is still firmly bonded after long-term use and the glue has no obvious failure phenomenon, it means that the quality of the glue is reliable.   Quality certification and test report Quality certification: Check whether the glue has passed relevant international or domestic quality certifications, such as ISO 9001 quality management system certification, ISO 14001 environmental management system certification, etc. These certifications indicate that the manufacturer follows certain standards and specifications in the production process, and the product quality is guaranteed to a certain extent.   Test report: The manufacturer is required to provide a test report issued by an authoritative third-party testing agency. The report should include the test results of various performance indicators of the glue, such as bonding strength, hardness, corrosion resistance, high temperature resistance, etc. The test report can intuitively reflect the quality level of the glue and ensure that it meets relevant standards and usage requirements.