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

Alumina wear-resistant ceramic sheets are currently in demand in the market, and everyone is more concerned about the service life of alumina wear-resistant ceramic sheets. Generally, how long can the ceramic wear-resistant sheet of this material be used? Today I will introduce it to you.   To understand the service life of alumina wear-resistant ceramic sheets, we must first understand the wear mechanism. The wear of alumina wear-resistant ceramic sheets can be roughly divided into cutting wear, fatigue wear, abrasive wear, Impact wear, etc. Due to the different working principles of each type of wear, the wear mechanism of ceramic sheets is also very different. In practical applications or experiments, they are often not isolated, but interconnected ties, and interact with each other.   The service life of alumina wear-resistant ceramic sheets is not only related to its quality, but also external factors, mainly including the size of medium particles, hardness, friction mode, environment, load, flushing speed, temperature, and time.   Generally speaking, the smaller the particles, the lower the concentration, the lower the scouring speed, the smaller the scouring angle, and the longer the service life of the alumina wear-resistant ceramic sheet. Usually in the network pipe of the slag micro powder production line, the surface area of the micro powder is 420~450m2/kg, the concentration is 350a/Nm3, the speed is 28~30m/s, and the flushing angle is 30, the 20mm wear-resistant ceramic sheet can be used for 8~10 years. Raw and clinker grinding materials are easier to grind than slag, and the service life of alumina wear-resistant ceramic sheets with the same thickness can reach more than 10 years.

The global economy has ushered in the outbreak of the new energy industry, and the demand for ceramic transportation pipelines has increased sharply. In the lithium battery cathode material production line, from raw material delivery, feeding, batching, mixing, and sintering (including secondary or tertiary sintering) to final packaging, Each link is connected by pipes to form a closed conveying system, so the amount of pipes is large. In the early days, PU pipes, rubber pipes, and stainless steel pipes were usually used. Compared with traditional metal pipes, ceramic lined pipes have been widely used in the lithium battery industry because of their super wear resistance, high-temperature resistance, acid and alkali corrosion resistance, and other characteristics. application.   It has been 30 years since lithium battery products were born in the early 1990s. In recent years, with the rapid expansion of my country's 3C market and the new energy vehicle market, Chinese enterprises have risen rapidly, breaking the pattern of competition between Japan and South Korea, and occupying the world's largest scale. In 2016, China accounted for 15 of the top 20 lithium battery manufacturers in the world. By 2019, CATL, BYD, etc. have ranked among the top in the world in terms of shipments. Around the upstream and downstream of lithium battery manufacturers, a huge and complete industrial chain has already been formed in China.    In the past three years, the rapid development of the domestic new energy vehicle industry has put forward higher requirements for the safety performance and energy density of battery materials, and high nickel ternary has become mainstream. Compared with traditional cathode materials such as lithium iron phosphate, high nickel ternary materials have higher hardness, higher requirements for wear resistance of pipelines, and stricter demagnetization (no copper, iron, and zinc). Some manufacturers continue to use the FRP liner, tetrafluoro liner, and even tungsten carbide spray pipe used in the lithium iron phosphate preparation system, but they find that the service life is extremely short after use.   Integral wear-resistant ceramic lined pipes have long been widely used in lithium battery production lines in Japan and South Korea. The integral wear-resistant ceramic lined elbow has the characteristics of super wear resistance, corrosion resistance, and high-temperature resistance. At the same time, as a nonmetallic lining material with ultra-high hardness, the ceramic-lined elbow can effectively block harmful substances such as powder and iron. The contact of substances reduces the content of impurities such as iron in the positive electrode material, thereby improving the safety performance of the battery.   The integral wear-resistant ceramic tube steel is made of 304 stainless steel integrally formed (hot simmering, non-straight tube welding), lined with 92～95 high purity alumina ceramic tube with stable performance, and filled with special viscose for ceramic and steel tube layer ceramics. Different from the general ceramic lined composite pipe, the inner and outer walls of this kind of pipe are smooth, the airflow is smooth, the wear is extremely low, and the pressure resistance and corrosion resistance are good. It has been proved by practice that the wear-resistant ceramic pipes produced by Iberno have a service life of at least five years in the high nickel ternary production line.    

The quality of pump tube products on the market is mixed, with many brands and different prices. Many customers do not know how to choose. Yibeno has been engaged in the sales of concrete parts and ceramic pump tubes for 15 years. With many years of work experience, it has summed up the principles that should be followed in the selection of pump tubes. .   According to the model selection: There are three main types of concrete pumps: concrete drag pumps, truck-mounted pumps, and boom pumps. Boom pumps generally use wear-resistant pump pipes, which are made of various manganese steel pipes, double-layer pipes, and ceramic pipes; vehicle-mounted pumps generally use high-pressure pipes. At present, the domestic standard of SANY high pressure is a seamless pipe with a wall thickness of at least 5 mm and an outer diameter of 140. The drag pump can be equipped with a low-pressure pump tube or a high-pressure pump tube. It can be configured according to the specific construction pressure and the vertical height of the building. Generally, the low-pressure pump tube is configured below 80 meters, and the high-pressure pump tube is configured as much as possible above 80 meters.    According to the quality of the pump tube: in the case of the same material, the heavier the weight, the thicker the wall thickness of the tube and the longer the service life. The ceramic pump tube produced by our company is 10 times the service life of manganese steel pipe and double-layer pipe. Above, the density of ceramics is only half that of steel, the weight is much lighter, and the installation is faster   Select the pump pipe according to the concrete label. The higher the vertical, the ultra-high pressure pump pipe should be used if it exceeds 150 meters. For cement grade C50 and above, more wear-resistant pump tubes should be used. In places with severe wear, it is recommended to use super wear-resistant ceramic pump tubes.

The wear-resistant ceramic plate is used in all walks of life, it has the characteristics of high hardness, hard wear resistance, corrosion resistance and impact resistance. During our construction process, we will encounter equipment that requires special-shaped linings, and at this time, a large amount of alumina ceramic cutting is required. So do you know how to cut it?   We use high hardness diamond blades to cut wear-resistant ceramic liners. There are desktop and hand-held cutting machines, and protective measures must be taken when cutting. Then how should it be cut? Many customers may not know this very well. It is impossible to cut everything like vegetables. When the high-speed rotating blade is in contact with the wear-resistant ceramic plate in the middle position, the ceramic plate will be broken under the action of shear stress. The knife must be cut from the end, so that the stress can be reduced to a small extent and will not affect the cutting of the wear-resistant ceramic plate. At the same time, pay attention to the cooling of the cutting plate. When cutting this hard material, the temperature of the knife plate will rise. Very quickly, this can cause the strength of the blade to decrease, so take care to cool the cutting blade with water.

Wear-resistant ceramic pipe is a composite pipe that combines ceramic and metal. The wear-resistant ceramic pipe gives full play to the high strength, toughness, impact resistance, good welding performance of steel pipe and high hardness, high wear resistance, corrosion resistance, and heat resistance of corundum ceramics. Good advantages, overcoming the characteristics of low hardness, poor wear resistance and poor ceramic toughness of steel pipes.   The wear-resistant ceramic tube has good comprehensive properties such as wear resistance, heat resistance, corrosion resistance, mechanical and thermal shock resistance, and good weldability. Therefore, it can be widely used in electric power, metallurgy, mining, coal, chemical industry, and other industries as an ideal wear-resistant pipeline for conveying abrasive granular materials and corrosive media such as sand, stone, coal powder, ash, aluminum liquid, etc.    Wear-resistant ceramic pipes are fundamentally different from traditional steel pipes, wear-resistant alloy cast steel pipes, cast stone pipes, steel plastic and steel rubber pipes. The outer layer of wear-resistant ceramic steel pipe is steel pipe and the inner layer is corundum. The Vickers hardness of the corundum layer is as high as 100-1500 (Rockwell hardness is 90-98), which is equivalent to tungsten-cobalt hard gold. The wear resistance is more than 20 times higher than that of carbon steel pipe, and it is much better than the corundum grinding wheel usually bonded. Ordinary carbon steel substrates are recommended to be used under 380℃; low alloy heat-resistant steel plates (15CrMo, 12Cr1MOV, etc.) are recommended to be used under 540℃; heat-resistant stainless steel substrates are recommended to be used under 800℃.   Because of the various advantages of wear-resistant ceramic pipes, many factories and companies will prefer ceramic wear-resistant pipes, which can also achieve the greatest savings in engineering costs.  

Equipment will be worn during material transportation. For continuous production enterprises, anti-wear is already a critical issue for safe production, especially in iron and steel plants, thermal power plants, cement, ports, and chemicals.   Alumina wear-resistant ceramic sheet is a form of wear-resistant that is economical and has an immediate effect. Its excellent wear-resistant performance is favored by all manufacturers. It is ubiquitous in power production, especially in the pulverizing system. Wear-resistant ceramic sheet model to ensure the service life of the equipment.   Anti-wear of coal mill barrel wall The operating environment of the barrel wall of the coal mill is relatively poor. The temperature in this place is the place where the temperature of the coal mill is relatively high, and it should be around 220°C. Most of them think that the erosion and wear of this part is relatively serious, because the ceramics of the barrel wall of the coal mill are all broken. Starting from this position, it is recommended to use a 10mm thick ceramic sheet in the severely worn area, a 5mm thick ceramic sheet in the non-severely worn area, and a high temperature-resistant adhesive in the high temperature area to ensure that the ceramic does not fall off.    Anti-wear of a static ring of coal mill The temperature of the operating ring of the static ring of the coal mill fluctuates in the range of 200-300 ℃, and the strong erosion aggravates the damage of this part. Because the temperature is too high, it is more important to choose high-temperature glue. In addition, it is not suitable to choose too thick ceramic sheets for this part, which is easy to fall off. In the experiment, we found that 10mm ceramic sheets are more reasonable for static ring anti-wear.   Anti-wear of coal mill separator The separator of the coal mill is very good for anti-wear with ordinary ceramic sheets, and the operating temperature is 70 ℃-90 ℃ mixed air, so the ordinary 5mm alumina ceramic sheet is used for anti-wear in this part, and the service life is 6-8 years.   Anti-wear of the straight pipe section at the outlet of the coal mill separator The operating environment of the straight pipe at the outlet of the separator of the coal mill is relatively bad. The high-speed airflow is mixed with coal particles, which strongly scours the pipe wall and causes this part to be worn out first. The temperature of the mixed air at 70°C-90°C is not very high, so the coal mill The ceramic type used in the straight pipe section of the separator can use a ceramic sheet of about 10-15mm to ensure the anti-wear requirement of the coal mill.

At this time, there is heavy snow with goose feathers floating outside the window. The winter of 2022 feels longer than in previous years, and there is a feeling of biting cold, but my heart is warm at this time. I just signed the first export order after the Spring Festival in 2022,I remember the first cooperation last year, because I don't believe it. It takes more time than domestic orders. From the initial inquiry, signing contracts It took two months for the bank to collect foreign exchange, arrange production, customs and book ships. Although there were some twists and turns in the middle, fortunately, everything was very smooth in the end!    The customer received the goods last year and was very satisfied with the company's products, and also gave a high evaluation. The customer ordered the dovetail wear-resistant ceramic this time. on the device. When using, weld the dovetail guide rail to the parts that need anti-wear, and control the spacing to ensure the gap between the ceramics. Then snap a special ceramic with a dovetail notch to the guide rail, and connect the ceramics in series along the guide rail to complete the installation. The dovetail slotted ceramic liner has the characteristics of high temperature resistance, non-shedding and long service life, and various thicknesses of ceramics can be selected according to the wear conditions, and various special-shaped structure equipment can be customized to form an impact-resistant wear-resistant layer. Widely used in thermal power, mining, cement, smelting and other industries to prevent wear of equipment. We will provide customers with high-quality products and competitive prices and hope that the company will receive more foreign trade orders in 2022.   Because of the repeated global epidemic, the international market has also been affected. China has become a very few countries with economic recovery and growth because of excellent epidemic prevention measures. China will also become a global manufacturing power. I believe the international market will be better and better in the future!  

Wear-resistant ceramics can be used in all kinds of beneficiation equipment with serious wear, including various chutes, pipes, and other equipment. Due to the long-term erosion and wear of the mineral powder, the magnetic separator barrel has a short service life. The use of wear-resistant ceramic sheets is currently the most widely used wear-resistant material, but the ceramic sheets are easy to fall off. To solve this problem, we have the following suggestions : 1. Use high-strength ceramic adhesive: The adhesive strength of our company's ceramic adhesive is more than 2 times that of ordinary ceramic adhesive, which greatly reduces the falling off of ceramic sheets.    2. Select the ceramic sheet with bumps: the surface of the ceramic sheet has bumps, which increases the bonding area and strength of the ceramic sheet, and is less likely to fall off than the flat ceramic sheet.   3. Appropriate construction temperature: When the wear-resistant ceramic sheet is constructed and pasted, the normal construction temperature of the ceramic glue should be guaranteed, especially in winter.   4. It is necessary to continuously sum up experience during construction, and choose careful workers to stick ceramic sheets.   Wear-resistant ceramic sheets are special ceramics fired at high temperatures. Wear-resistant ceramic sheets are widely used in the market and are different from the ceramics used in people's daily lives. In terms of production materials, a large number of industrial materials and metals are used in the production process. It is precisely because of these materials and some special production processes that the ceramic sheet has the characteristics of wear resistance and high hardness.  

Wear-resistant ceramic sheets are also called mosaic alumina ceramics. Depending on the thickness of the ceramic sheets, the working conditions and the frequency of use, the service life of the ceramic sheets will be affected.   The wear-resistant ceramic sheet is a special ceramic with a relatively dense structure and special wear-resistant properties. Its main ingredient is alumina powder. Sintered at high temperature, it has the advantages of high melting point, high hardness and good wear resistance.    The service life of the wear-resistant ceramic sheet is not only related to its quality but also the operating conditions of the equipment, which mainly include the particle size, friction mode, load, material scouring speed, operating temperature, and time.   The wear of wear-resistant ceramic linings is generally divided into cutting wear, fatigue wear, abrasive wear, impact wear, etc. Since the working principle of each wear is different, the wear mechanism is also quite different, but in practical applications, they do not act in isolation, but interconnect and influence each other. Generally speaking, the smaller the particles, the lower the concentration, the lower the flushing speed, and the longer the service life of the wear-resistant ceramic sheet.   Usually, in the network pipe of the slag powder production line, the wear-resistant ceramic lining of 20mm can be used for 8 to 10 years. The materials ground by the raw mill and clinker mill are easier to wear than the slag, and the wear-resistant ceramic lining of the same thickness has a service life of more than 10 years.  

Lithium battery is mainly composed of positive electrode material, negative electrode material, separator and electrolyte, etc. The positive electrode material is an important part of lithium battery, and the cost accounts for about 50% of the whole battery. Lithium battery cathode material production line, from raw material sending, feeding, batching, mixing, and sintering (including secondary or tertiary sintering) to final packaging, each link is connected by pipelines to form a closed conveying system. Pipes are conveying pipes made of PC pipes, glass fiber reinforced plastics and other materials, and the amount of pipes is large.    In the past three years, the rapid development of the domestic new energy vehicle industry has put forward higher requirements for the safety performance and energy density of battery materials, and high nickel ternary has become mainstream. Compared with traditional cathode materials such as lithium iron phosphate, high-nickel ternary materials have higher hardness, higher requirements for wear resistance of pipelines, and stricter demagnetization (no copper, iron, and zinc).   The integral wear-resistant ceramic pipe has smooth inner and outer walls, smooth airflow, extremely low wear, and good pressure resistance, and has the characteristics of super wear resistance, corrosion resistance and high-temperature resistance. The non-metal lining material can effectively block the contact between the powder and harmful substances such as iron, reduce the content of impurities such as iron in the positive electrode material, and improve the safety performance of the battery.