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

The wear-resistant ceramic sheet has a higher hardness and is a material second only to diamond. Its wear resistance and pressure resistance are also very strong, even in the working environment of high pressure, high temperature or strong friction, the wear-resistant ceramic sheet will not be severely damaged.   The wear-resistant ceramic sheet is a special corundum ceramic made of Al2O3 as the main raw material, rare metal oxides as the solvent, and calcined at a high temperature of 1700°C. Wear-resistant ceramic sheets have many aliases due to different regions and habits, such as ceramic sheets, linings, ceramic mosaics, alumina linings, and high-aluminum linings.   Wear-resistant ceramics have the characteristics of wear resistance, impact resistance, corrosion resistance, high temperature resistance, and convenient construction. They are used as materials in electric power, metallurgy, coal, petroleum, cement, chemical, machinery and other industries (such as ash, coal powder, mineral concentrate, Tailings, cement, etc.) is an ideal material for the surface of conveying equipment, which is very safe and reliable to use under high temperature corrosion, high temperature wear or high temperature corrosion. Data show that the life of wear-resistant ceramics is ten to twenty times longer than that of cast stone, wear-resistant alloy cast steel, steel plastic, steel rubber and other materials.   With the advent of China's industrialization era, wear-resistant ceramics have added more high-tech, making wear-resistant ceramic sheets more popular in China's industrialization field. In addition to the above advantages, the wear-resistant ceramic sheet has strong pressure bearing capacity, and the wear-resistant ceramic sheet will not be broken under strong pressure; the wear-resistant ceramic sheet is light in weight, which can greatly reduce the weight of the equipment.   Experts expect that the market demand for wear-resistant ceramic sheets and other wear-resistant accessories will see a steady growth in the future, and the wear-resistant accessories industry will also usher in a period of continuous development. Manufacturers of wear-resistant ceramic sheets must seize development opportunities to seize the domestic and foreign markets with more complete products, excellent quality, and more advantageous prices, thereby increasing their share of the wear-resistant market.  

As a new type of material, alumina ceramics have excellent properties such as high mechanical strength, low specific gravity, low abrasion, high-temperature resistance, and high electrical resistance. It is applied and promoted in various industries and has a huge market prospect. According to alumina content, alumina wear-resistant ceramics are divided into ordinary type and high-purity type. High-purity alumina ceramics mean that the content of AL2O3 in the material is above 99.9%; ordinary alumina ceramics are divided into 99 porcelain, 95 porcelain, 92 porcelain, 90 porcelain, 85 porcelain and so on. Our company produces and sells mainly 92 porcelain and 95 porcelain.   At present, in the international market, Japan’s precision ceramics have a large share of the international market, and ceramic components in petrochemical, food engineering, environmental engineering, electronic industries, and other industries have developed rapidly; Electronic ceramic components are widely used in the fields of manufacturing, industrial manufacturing, energy, transportation, aerospace and military; European countries mainly focus on the application of alumina ceramics to ceramic piston covers, turbochargers and other power generation equipment; and the application of alumina ceramics in China The most widespread industries are textile, petroleum, chemical, construction, and electronics industries.   Most of China's alumina ceramic enterprises are private enterprises, limited by funds and talents, and their R&D and innovation efforts are weak. With the country's strong support for new industries in recent years, the alumina ceramic industry will have huge development potential in the fields of aerospace, power electronics, and medical equipment.

As we all know, roller encapsulation is a necessary link before the roller is put into use. The roller encapsulation can protect the roller from corrosion and abrasion, increase the friction of the belt, and extend the service life of the conveying system. At present, ordinary wear-resistant rubber sheets can no longer meet the harsh transportation environment. Due to their limited cleaning ability, the friction between the drum and the belt drops sharply, and excessive wear of the rubber sheets and belt slippage will occur. The method of covering the ceramic rubber sheet can effectively improve the operating conditions of the conveyor system, protect the metal roller from being worn, prevent the conveyor belt from slipping, and make the roller and the belt run synchronously, so as to ensure the efficient and large-volume operation of the belt. The ceramic rubber sheet coating for the drum has the following advantages: 1. The ceramic rubber sheet produced by Ibeno is embedded with 92% alumina ceramic block in rubber. The high abrasion resistance of the ceramic on the rubber surface increases the friction coefficient between it and the belt. The friction coefficient is 4-6 times that of ordinary rubber sheets, which can significantly reduce the occurrence of belt slippage.   2. The combination of ceramic and rubber sheet greatly increases the wear resistance of the rubber sheet, which is 8-10 times higher than that of the high wear-resistant rubber sheet.   3. The special arrangement of ceramic blocks and rubber ensures that the drum has better drainage and mud discharge performance after rubber coating.   4. The bottom of the ceramic rubber sheet is equipped with a semi-vulcanized CN layer, which works with imported adhesive to achieve strong adhesion between the rubber sheet and the surface of the roller.   5. The roller encapsulation construction can be carried out on site, which is convenient, quick and cost-effective.   The method of encapsulating the ceramic rubber plate roller: 1. Glue shoveling: Determine whether it is necessary to shovel the glue according to the condition of the residual glue on the surface of the drum. If the residual glue exceeds 0.5m, the glue shoveling machine must be used to remove the residual glue. Before shoveling rubber, it must be ensured that the roller can be rotated manually. If it cannot be rotated, the connecting pin between the roller and the reducer must be removed. If the residual glue area is less than 0.5m, there is no need to shovel glue.   2. Polishing: There are many dirt, dust, grease, water, rust and other organic or inorganic pollutants on the metal surface, which affect the wetting of the glue. In order to improve the bonding strength, the surface of the metal roller needs to be polished to expose the original metallic luster.   3. Cleaning: There are many dirt, dust, grease, water, rust and other organic or inorganic pollutants on the polished surface, which will affect the wetting of the adhesive. It is necessary to use cleaning agents to remove surface dirt and deep clean the entire drum surface to prevent various impurities from affecting the glue bonding effect.   4. Transition: Use a brush to apply a layer of metal treatment agent evenly and quickly on the cleaned metal surface. It is required to apply evenly and completely without any leaks, and let it dry completely for about one hour. The metal primer can effectively prevent the surface contamination of the roller and prolong the storage period of the processed metal. It can also ensure the wettability of the adhesive and increase its adhesive strength and durability.   5. Glue: mix and stir the two components of the adhesive. According to the needs, you can take a part of the glue and mix it in the container according to the ratio of 100:4. The glue after preparation must be used in time, not for a long time. The roller needs to be painted twice. After the first pass, wait 10-25 minutes for it to dry before applying the adhesive for the second time. Brush the ceramic rubber plate with CN layer once.   6. Laminating: Determine the bonding datum line on the surface of the drum: After brushing the glue for the second time, find the datum of the ceramic rubber sheet on the surface of the drum, find the position and perform the bonding. After lamination, use compaction rollers to push from the middle of the roller to both ends.   7. Sealing: The first job is to repair the edge of the drum, and use a rubber hammer to intensively beat both sides from the middle to the sides, and wait for natural drying.  

The wear-resistant elbow of the powder feed pipe mainly starts from the air box at the outlet of the pulverized coal mixer and the powder exhaust fan to the burner and the tertiary air outlet and connects the recirculation air duct from the outlet air box of the powder exhaust fan to the inlet of the coal mill. The elbow part in the pipeline, because it mainly transports solid powder media, has relatively strong abrasion strength. The selection of wear-resistant materials for the powder-feeding pipeline wear-resistant elbow should have high toughness and impact resistance, high hardness and cutting Strong wear-resistant ceramic material.   The wear-resistant elbow of the powder-feeding pipe is lined with wear-resistant ceramic material. The wear-resistant performance of the powder pipe is very good, the hardness reaches about HV1800, and the wear resistance is more than 10 times that of ordinary steel; it also has good Impact resistance, even in harsh working conditions, you can easily face it; corrosion resistance is also particularly good, after lining wear-resistant ceramics, it will not react with acid and alkali, and will not be oxidized, resulting in The rust is mixed into the pulverized coal, causing incomplete combustion.   The use of wear-resistant ceramics as wear-resistant materials for powder-feeding pipe wear-resistant elbows is the most cost-effective choice. Wear-resistant ceramics can make the inner wall of the pipe very smooth and smooth without causing powder bulk material. The use effect is very good. The service life is very long, generally about 10 times that of ordinary elbows. Wear-resistant ceramics are currently one of the most popular wear-resistant materials for powder-feeding pipe wear-resistant elbows.  

The wear-resistant pipe is used for the serious part of the engineering wear, and the internal addition of a composite pipe of the wear-resistant layer is added to energy conservation and emission reduction, wear-resistant and anti-corrosion.   Depending on the abrasion conditions, there are also different material selections on the wear-resistant pipeline liner. Continuous wear-resistant ceramic pipe (liner differential aluminum, silicon carbide, boron nitride, etc.), abrasion-resistant alloy tube, turtle-resistant mill, wear-resistant cast stone tube, self-propagating composite pipe, etc. Wear-resistant ceramic composite pipes with conventional steel pipes, wear-resistant alloy cast steel tubes, cast stone tubes, and self-propelled tubes. The outer layer of the wear-resistant pipe is a seamless steel pipe, and the inner layer is corundum ceramics. The hardness of the corundum is up to HV1100-1400, and wear resistance is 20 times higher than the carbon steel tube. Wear-resistant pipeline anti-wear is mainly against the inner lining of alumina ceramics.   Wear-resistant ceramic composite pipelines quickly occupy the market, in addition to high quality, and good performance, but also its performance ratio is higher than other wear-resistant pipes. In terms of wear-resistant pipelines of the same specifications and unit lengths, the wear-resistant ceramic composite pipe weight is only about one or more of the wear-resistant alloy casting steel pipe, and its project cost is reduced by 20% -30%.   The wear-resistant ceramic composite tube is a corundum ceramic (A-Al2O3), Moh's hardness can reach 9.0 equivalent to HRC90 or more, the wear-resistant life is ten times more than ten times, and the inner surface is smooth, which is small. The weight of the pipe is light, the welding performance is good, which can be welded, flange fast linkages, etc., the construction is convenient, and the installation fee can be reduced.    

With the development of each city and the heating up of infrastructure, the cement industry has also begun technological innovation. On the one hand, in order to increase productivity and improve the working environment, on the other hand, the problem of equipment wear has become more and more urgent to solve.   Equipment wear and tear has seriously affected the normal production of the cement industry and has led to an increase in production costs and maintenance costs. The application of wear-resistant ceramics in the cement industry greatly extends the service life of wear-resistant parts, which is of great significance in improving equipment production efficiency, reducing production costs, and saving resources. According to the mechanism and form of wear, wear can be divided into abrasive wear, erosive wear, and corrosive wear. Different wear-resistant ceramic processes are used according to the wear of the equipment.   The base material of equipment in the cement industry is composed of steel, and steel abrasion is the external manifestation of equipment abrasion. As the wear problem generally only occurs on the surface and part of the part, the use of surface protection measures to control and delay the damage of the surface has become an effective method to solve the wear problem. In the course of decades of development, the research and innovation of wear-resistant materials have never stopped. Cast stone, cast steel, alloy steel, thermal spraying, wear-resistant coating, wear-resistant mortar and other materials. Among them, alumina ceramics has become one of the most widely used wear-resistant materials due to its high wear resistance, high hardness, oxidation resistance, corrosion resistance and extremely high resistance to high and low temperature strength. In the coal and ash of cement plants, the hardness of almost all hard mineral particles is higher than that of ordinary carbon steel, but generally does not exceed the hardness of wear-resistant ceramics, which is second only to diamond in hardness.   According to the principle of equipment wear in cement plants, the equipment is divided into pneumatic conveying equipment and material conveying equipment. The anti-wear of pneumatic conveying equipment is mainly to increase the hardness of the surface material, and the anti-wear of the material conveying system is mainly to increase the toughness of the anti-wear material. , Supplemented by hardness.   Grasp the wear of the equipment and the respective characteristics of commonly used wear-resistant materials, and then select suitable wear-resistant materials and anti-wear methods according to the wear of different parts, in order to effectively improve the wear resistance of the equipment, thereby increasing the overall life of the equipment.    

Corrosion resistance, anti-scaling Because the steel ceramic layer is (a-AL2O3), it is neutral. Therefore, it has acid and alkali resistance and seawater corrosion resistance, while having the characteristics of anti-scaling.   Good performance Because the corundum ceramic (a-AL2O3) is a single stable crystalline structure, therefore, the composite pipe can operate normally in the temperature range of -50-900℃ for a long time. The coefficient of linear expansion of the material is 6-8×10-6/0C, which is about 1/2 of that of the steel pipe. The material has good thermal stability.   Low project cost The ceramic composite pipe is light in weight and reasonable in price. It is 50% lighter than the cast stone pipe of the same inner diameter; 20-30% lighter than the wear-resistant alloy pipe, and has good wear and corrosion resistance. Because of the long service life, the support and hanger costs, handling costs, installation costs, and Operating costs are reduced. Comparing the project budget and the actual project by the relevant design institutes and construction units, the project cost of the pipe is equivalent to that of cast stone. Compared with the wear-resistant alloy pipe, the project cost is reduced by about 20%.   Convenient installation and construction Because the tube is light in weight and has good welding performance. Therefore, welding, flanges, quick coupling, etc. can be used, which is convenient for construction and installation and can reduce installation costs.