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

What are the applications of wear-resistant ceramic sheets in pulverized coal pipelines?

The elbows of the pulverized coal transportation pipelines of thermal power plants are particularly worn and have long been the key parts of power plant maintenance. The service life of the pipelines is directly related to the operating costs and economic benefits of the entire power plant. From the wear resistance, high temperature resistance and corrosion resistance of the pipeline Considering the convenience of function and construction, the application of wear-resistant ceramics in pipes can fundamentally solve this problem.   The wear-resistant ceramic sheet uses AL2O3 as the main raw material and is a special corundum ceramic produced by calcining at a high temperature of 1700 Baidu. Its Rockwell hardness is HRA80-90, the hardness is second only to diamond, which can greatly extend the service life of the elbow of the pulverized coal pipe.   The wear-resistant ceramic commonly used in the wear-resistant elbow of the pulverized coal pipeline adopts the welding process with a hole in the middle, and is equipped with a steel bowl and a porcelain cap. The construction of this wear-resistant ceramic sheet is also more convenient. The ceramic sheet is directly welded to the steel body, and the overall appearance is all ceramic surfaces. This further strengthens the firmness of the ceramic sheet pasted on the pulverized coal pipe. The advantage of this type of ceramic patch is that it is easy to repair and maintain. Even if the pipeline is worn during operation, it can be directly repaired, saving manpower and material resources.   Wear-resistant ceramic sheets are used in various industrial wear environments, such as wear-resistant and anti-corrosion of fan impellers and casings. Wear-resistant ceramic sheets are also often used to compound wear-resistant pipe elbows with various metal materials. The wear-resistant ceramic sheet can also be used in the wear-resistant and wear-resistant of various types of water pumps, slurry pumps, circulating water pumps, impellers and various overcurrent components.

What is Alumina Ceramic Coating?

Alumina ceramic coatings include alumina coating, alumina-titanium oxide coating, and nano-alumina coating. The layer transitions to a multi-layer or gradient gradient layer.   Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics is a kind of ceramics with a wide range of uses. Because of its superior performance, it has been widely used in modern society to meet the needs of daily use and performance.   Alumina ceramics is a ceramic material with (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. Silicon nitride ceramics are inorganic materials that do not shrink during sintering. Silicon nitride is very strong, especially hot-pressed silicon nitride, which is one of the hardest substances. Compared with alumina ceramics, zirconia ceramics are more wear-resistant. The reason is that the sintering temperature of zirconia ceramics is higher. The density is twice as high as that of alumina ceramics.   Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength, and high-temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics is a kind of ceramics with a wide range of uses. Because of its superior performance, it has been widely used in modern society and meets the needs of daily use and performance.   Alumina ceramics are divided into two types: high-purity type and ordinary type.   High-purity alumina ceramics are ceramic materials with an Al2O3 content of more than 99.9%. Because their sintering temperature is as high as 1650-1990 ° C and the transmission wavelength is 1-6 μm, they are generally made of molten glass to replace platinum crucibles; It is resistant to alkali metal corrosion and can be used as a sodium lamp; in the electronics industry, it can be used as an integrated circuit substrate and a high-frequency insulating material.   Ordinary alumina ceramics are divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain, and other varieties according to the content of Al2O3. Sometimes those with Al2O3 content of 80% or 75% are also classified as ordinary alumina ceramic series. Among them, 99 alumina ceramic materials are used to make high-temperature crucibles, refractory furnace tubes, and special materials, such as ceramic bearings, ceramic seals, and water valve plates; 95 alumina ceramics are mainly used for corrosion resistance and components; 85 ceramics are often mixed with Part of talc is added to improve electrical properties and mechanical strength. It can be sealed with metals such as molybdenum, niobium, and tantalum, and some are used as electrical vacuum devices.   Forming methods of alumina ceramic products include dry pressing, grouting, extrusion, cold isostatic pressing, injection, casting, hot pressing, and hot isostatic pressing. In recent years, pressure filtration molding, direct solidification injection molding, gel injection molding, centrifugal grouting, and solid-free molding have been developed at home and abroad. Products with different product shapes, sizes, complex shapes, and precision require different molding methods.  
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