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The T3 model represents the brick number of refractory bricks, also known as standard bricks. Its size is generally the most basic size of refractory bricks and is also the most widely used size of refractory bricks. The size of refractory brick T3 is 230mm×114mm×65mm, which is a standard rectangular block, representing its length, width, and height respectively. Its volume is generally 1704.3 cm3, which is one of the most common sizes of refractory bricks. T3 refractory bricks are straight refractory bricks, which are often used for the masonry of some conventional walls, such as some rectangular and square high-temperature kilns and other regular walls. In the masonry of some irregular walls, there are many other brick numbers and sizes of refractory bricks that can be used, so when masonry, it is necessary to select according to the masonry diagram in the drawing. At present, in addition to T3 refractory bricks, there are also common refractory brick sizes such as T38, T20, and T46, which are all used for the construction of refractory walls of different shapes and structures. There are thousands of sizes of refractory bricks according to the refractory brick size table. When choosing the size of refractory...
Hollow alumina balls are a high-temperature insulation material that can be made into various refractory and insulation products. The maximum use temperature is 1800℃. The products have high mechanical strength and low volume density. They are lightweight, hard, high temperature resistant, and corrosion resistant. The following will introduce some of the main applications of hollow alumina balls. 1. Hollow alumina balls are widely used in the field of filling materials Because hollow alumina balls have a low specific gravity and low thermal conductivity, they have good insulation properties, and can effectively reduce heat conduction and improve insulation effects, so they are often used in various insulation products, such as insulation surface layers, insulation wall panels, and insulation pipes. 2. Alumina hollow balls are also used to prepare lightweight materials Because alumina hollow balls have the characteristics of low volume density and high compressive strength, they are often used to make fillers for some lightweight composite materials. While reducing the weight of the product, the strength can also be guaranteed. By mixing alumina hollow balls with other basic materials (such as polymers, rubber, etc.), lightweight composite materials such as automotive parts, aerospace components, and sports equipment can be prepared. 3. Alumina...
The service life of refractory castables usually affects the life of the entire high-temperature kiln. The longer the service life, the longer the durability of the high-temperature kiln. Therefore, the service life of refractory castables is crucial. So, what are the factors affecting the service life of refractory castables? 1. Reasonable selection: When choosing refractory castables, we must make reasonable choices based on specific use occasions, use media, use temperature, and other factors, such as high temperature, chemical corrosiveness, thermal stability, creep resistance, and other factors. In this way, the refractory castable can resist the erosion of the corresponding medium during use and extend its service life; 2. Construction quality: The construction quality of refractory castables directly affects its service life. If the construction is not standardized and the bonding is not firm, the refractory castable will be easily damaged. 3. Hardening and baking: After the construction of the castable is completed, it must be hardened and dried for a certain period. After the hardening is completed, the refractory castable must be baked. During the baking process, it must be reasonably heated and baked according to the heating curve to avoid rapid cooling and heating to ensure that the castable...
There are many sizes of refractory bricks, which are generally selected according to the usage scenarios and needs. Reasonable sizes can increase the masonry speed of refractory bricks and improve the construction progress. Not only that, but the reasonable selection of refractory brick sizes is also the key to ensuring the performance and tightness of high-temperature industrial kilns. When choosing the size of refractory bricks, many factors need to be considered, including application scenarios, temperature requirements, structural design, etc. Generally speaking, the standard size of refractory bricks is 230*114*65 (mm), and the label of this size is T3. This brick is used more when building straight-up and down walls, such as furnaces, smelting furnaces, kilns, etc. However, not all applications are suitable for standard-sized refractory bricks. Sometimes, larger or smaller refractory bricks need to be customized according to specific needs to ensure the performance and safety of the equipment. There are hundreds of sizes of refractory bricks at present. Other common ones include T1, T20, T38, T46, two-piece, four-piece, four-piece, eight-piece, etc. Their sizes are 230*114*100mm, 230*114*(65/45)mm, 230*114*(65/55)mm, 275*230*150(mm)*60°, 230*114*20mm, 230*114*40mm, 456*230*65mm, 912*230*65, etc. Different equipment may have different internal space structures, so it is necessary to choose the appropriate...
Grate bricks are mainly used at the bottom of the kiln. They are arranged between the burner bricks and the heat storage honeycomb body. They play the role of fire blocking and fixing and protecting the heat storage body. They have an important impact and protective effect on the service life of the heat storage body. They can not only reduce the radiation effect of high-temperature furnace gas on the front heat storage body but also resist the erosion of some iron oxide sheets on the front heat storage body. In the coke oven, where are grate bricks mainly used? In the coke oven, grate bricks are used to build grate bars to support coke. In the Coke oven, grate bricks are usually located at the bottom of the Coke to support and fix the Coke to prevent the Coke from collapsing. Grate bricks are one of the key components in coke oven equipment. Their reasonable arrangement and fixed position are of great significance to the normal operation and production efficiency of the coke oven. Specifically, grate bricks are usually located at the bottom of the coke slag trough of the coke oven, or the grate trough and gaps are...
High alumina bricks and corundum bricks are both types of refractory bricks. Generally, high alumina bricks are more widely used, and the quality and refractoriness of corundum bricks are higher than those of high alumina bricks, so they are often used on special occasions. Therefore, its application range is narrower than that of high alumina bricks. Although the application fields are different, they show their unique performance advantages in different working environments. So what are the differences between high alumina bricks and corundum bricks? 1. Composition 1. High alumina bricks are a refractory material made of high alumina bauxite as the main raw material. At present, the common ones are special high alumina bricks, first-grade high alumina bricks, second-grade high alumina bricks, and third-grade high alumina bricks. 2. Corundum bricks are refractory materials made of high-purity corundum as the main raw material. At present, the common ones are chrome corundum bricks, zirconium corundum bricks, white corundum bricks, brown corundum bricks, etc. 2. Physical and chemical indicators 1. Refractoriness The refractoriness of high-alumina bricks is generally 1600-1780℃, while the refractoriness of corundum bricks can generally reach above 1800℃. The refractoriness of corundum bricks is higher than that of high-alumina bricks, so...
High-alumina castables are a common refractory material for the refractory layer of thermal equipment. They have excellent fire resistance, high-temperature resistance, and chemical stability. High-alumina castables are widely used in metallurgy, cement, glass, mining, aluminum, and electricity industries. In these industries, what are high-alumina castables mainly used for? 1. Metallurgical industry: In the metallurgical industry, high-alumina castables are widely used in the lining and refractory layer of equipment such as steelmaking furnaces, converters, and electric arc furnaces. Due to its excellent fire resistance and high-temperature resistance, it can effectively protect smelting equipment from high temperature and corrosion, thereby extending the service life of the equipment and improving production efficiency. 2. Cement industry: In the cement industry, high-alumina castables are often used for the lining of rotary kilns, cement calciners, calciners, and other kilns. It can withstand impact and erosion at high temperatures, protect the kiln wall from damage by heat and chemicals, and ensure the normal progress of cement production. 3. Glass industry: In glass melting furnaces and glass kilns, high-aluminum castables are used as lining materials, which can withstand the corrosion and erosion of high-temperature glass liquid, protect the furnace structure from damage, and ensure the stable production of...
Silicon nitride-bonded silicon carbide bricks are a high-performance refractory material with excellent high-temperature resistance, corrosion resistance, and thermal shock resistance. They are widely used in high-temperature furnaces and special industrial equipment. So what are the uses of silicon nitride-bonded silicon carbide bricks? Silicon nitride-bonded silicon carbide bricks are widely used in metallurgy, the chemical industry, glass, and other industries. In the metallurgical industry, its excellent high-temperature resistance makes it an ideal lining material for high-temperature smelting furnaces, arc furnaces, melting furnaces, and heat treatment furnaces. In the metallurgical production process, this refractory material can withstand extremely high temperatures and thermal shocks, protect the equipment structure from high-temperature corrosion and thermal stress, and ensure stable production operation. Because silicon nitride bonded silicon carbide bricks have excellent corrosion resistance and chemical stability, they are often used as thermal insulation layers or linings for reaction equipment under acidic and alkaline media in the chemical industry, such as sulfuric acid, hydrofluoric acid, and other strong corrosive media processing devices. At the same time, silicon nitride combined with silicon carbide bricks can also be used in high-temperature pyrolysis equipment, oxidation reaction furnaces, etc., providing reliable refractory material guarantees for chemical production. Not only that, silicon...
Can refractory bricks be fired with clay? The answer is no. As a common refractory material, refractory bricks have excellent heat resistance and chemical stability in high-temperature environments. They are widely used in the internal construction of furnaces, chimneys, heat treatment furnaces, and other equipment, so the raw materials of refractory bricks need to have fire resistance and chemical stability in high-temperature environments. The raw materials for making refractory bricks are mainly bauxite, which usually contains aluminates, silicates, alumina, etc., so it can withstand high temperatures. There are obvious differences in the material properties of clay and bauxite. Clay is mainly composed of clay minerals, its structure is loose, easy to deform, and has poor fire resistance in high-temperature environments. Therefore, replacing refractory bricks with clay may cause the risk of deformation and collapse of building structures when subjected to high temperatures. The refractory temperature of general soil is 800-1000℃, while the working temperature of high-temperature industrial kilns can usually reach above 1300℃, so it is difficult for ordinary soil to meet the high-temperature requirements of high-temperature industrial kilns, and the soil can withstand a short time in a high-temperature environment, which cannot meet the long-term operation of high-temperature kilns...
Refractory bricks are a well-known refractory material that is suitable for all walks of life, especially the construction industry, and are an indispensable raw material. Do we have a deep understanding of it because it is so close to our lives? Refractory bricks, referred to as fire bricks, are a type of refractory material made of refractory clay or other refractory raw materials. In short, it is a type of fire-resistant and high-temperature-resistant brick. The material is light yellow or brown, mainly used to build smelting furnaces, and can withstand high temperatures of 1580℃-1770℃. It is also called fire bricks and is a refractory material with a certain shape and size. Bricks for different purposes can be made according to the raw materials used, and bricks of different shapes can be made according to the parts used. According to the preparation process, it can be divided into sintered bricks, unsintered bricks, fused bricks (electrically fused bricks), and refractory insulation bricks. According to the shape and size of refractory bricks, they can be divided into standard bricks, ordinary bricks, and special bricks. Refractory clay bricks, high-alumina bricks, silica bricks, magnesia bricks, and other high-temperature building materials and structural materials can be...
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