High Alumina Bricks
Fused AZS Zirconia Corundum Bricks
Lightweight Mullite Bricks
Andalusite Bricks
Low Creep High Alumina Bricks
Fire Clay Bricks
Acid-Resistant High Alumina Bricks
Low Creep Fire Clay Bricks
High Alumina Insulation Bricks
Phosphate High Alumina Bricks
High Alumina Refractory Bubble Bricks
Corundum Bricks
Corundum Mullite Bricks
Chrome Corundum Bricks
High Alumina Refractory Castables
Corundum Castables
Corundum Mullite Castables
Zirconia-Corundum Casting Castables
Steel Fiber Castables
Mullite Castables
High Alumina Insulating Castables
Silicon Carbide Castables
Magnesia Alumina Spinel Castables
Refractory Ramming Mass
High Alumina Refractory Mortar
High Alumina Refractory Cement
Acid Resistant Castables
Alkali Proof Castables
Magnesia Bricks
Silica Bricks
Silicon Carbide Refractories
Refractory Precast Blocks
Chrome Corundum Casting Castables
Chrome Corundum Refractory Bricks
Refractory Ceramic Balls
Refractory Honeycomb Ceramic Regenerator
Refractory Corundum Ceramic Balls
Home > Knowledge
Refractories are the lining of high-temperature kilns, which play a protective role in blast furnace hot blast stoves, ladles, and other equipment in the metallurgical industry. It can be said that without refractories, smelting equipment cannot operate. Refractories can prevent ladles from contacting molten steel and prolong The service life of the ladle is also very necessary to use refractory materials in the metallurgical industry. There are also many types of refractory materials used in the metallurgical industry. How to choose refractory materials used in metallurgical heating furnaces is also a science. Today I will take you to understand. When choosing bricks, we should pay attention to the following issues: First, we should be tailor-made, self-sufficient, pay attention to the characteristics of regional resources, and choose bricks reasonably. Secondly, consider the working characteristics of the furnace masonry to achieve the correct technology. Different styles of heating furnaces and different parts of the furnace body have different working conditions. Therefore, when using bricklaying materials, the characteristics of masonry work should be fully considered. The working temperature of different parts of the heating furnace is different, and the selection of masonry materials should choose products of different varieties and grades. For the...
Hot blast stoves generally use refractory bricks as the inner lining to withstand high temperatures and chemical corrosion. When choosing the type of refractory brick, two options are usually considered, andalusite brick and mullite brick. Andalusite bricks have high-temperature resistance and can withstand higher temperatures. They are often used in the internal lining of high-temperature industrial equipment such as hot blast stoves because of their stable performance under high-temperature conditions. As a high-temperature structural material, hot-blast stove bricks have very strict requirements for high-temperature creep rates. Andalusite, like sillimanite, has excellent high-temperature structural strength properties. The high-temperature creep rate of andalusite brick is better than that of bauxite, corundum, and most mullite bricks. Andalusite is one of the ideal materials for low-creep refractory materials. Mullite bricks are used in some specific cases as they perform better in chemically aggressive environments. Mullite bricks are relatively light and may be more suitable for some application scenarios that have restrictions on the weight of equipment. Using synthetic mullite and corundum as the main raw materials, adding sillimanite and andalusite, according to the production process of high alumina bricks, mullite hot blast furnace bricks are produced. Load softening temperature and creep properties are important...
The glass furnace is an essential thermal equipment for glass production. Its main responsibility is to melt the batch material into liquid glass during the glass production process, and it is also responsible for clarifying, homogenizing, and cooling it to the required temperature. , so the quality of the glass kiln affects the entire production process, and the refractory bricks used in building the glass kiln are also the key to affecting the service life of the glass kiln. Today, the editor takes the production of float glass as an example to introduce to you the Refractory bricks required in the process of building a glass furnace. The three major thermal equipment commonly used in the float glass production process are float glass furnaces, float glass tin baths, and glass annealing furnaces. These three kinds of kilns all need refractory bricks for the construction of the inner lining during the construction process, but because the temperature of each part of the kiln is inconsistent during operation, we must choose according to the temperature of the used part when selecting. 1. Silica bricks for glass kiln Silica bricks are often used in glass kiln arches, breast walls, and small kiln masonry....
First of all, we need to understand what is a refractory material. Refractory materials generally refer to inorganic non-metallic materials with refractoriness above 1580°C. It includes natural ores and various products made through certain processes according to certain purposes. It has certain high-temperature mechanical properties and good volume stability and is a necessary material for various high-temperature equipment. It is very versatile. So what are the types of refractory materials? In terms of properties, refractory materials can be divided into acidic refractory materials, basic refractory materials, aluminum silicate refractory materials, cast refractory materials, neutral refractory materials, special refractory materials, and amorphous refractory materials. Today we will not give a detailed explanation of these refractory materials one by one. In the following encyclopedia knowledge, I will introduce them slowly. After understanding the classification of refractory materials, we are talking about the properties of refractory materials. It’s actually very simple, and I’ll give you a simple explanation. 1. Physical properties: including structural properties, thermal properties, mechanical properties, serviceability, and operational performance. The structural properties of refractory materials include porosity, bulk density, water absorption, air permeability, and pore size distribution. 2. Thermal properties: including thermal conductivity, thermal expansion coefficient, specific heat, heat capacity,...
Chrome corundum refractory bricks, also known as high wear-resistant chrome corundum tapping channel bricks, are high-end products that Xinhongji Refractory has introduced to the market for many years. It is made of pure alumina Al2O3 and chromium oxide Cr2O3 as the main raw materials. Compared with pure corundum bricks, it has more functions, such as fire resistance, load softening deformation temperature, flexural strength, high-temperature creep, high-temperature volume stability, and corrosion resistance. It is mainly used for slide rails, tapping channels, and bevels of steel rolling heating furnaces, which are easy to wear in industrial furnaces. Chrome corundum brick is a refractory material used in many rolling mills with a service life of 10 to 18 months. Application of chrome corundum brick 1. When used in the steel industry, the service life of chrome corundum bricks is more than twice that of corundum materials, such as breathable ladle bricks. ; The wear resistance and corrosion resistance of chrome corundum bricks used in the nonferrous metal smelting industry are obviously better than other bricks. 2. For the carbon black industry, the service life of chrome corundum bricks used by Guangdong Maoming Carbon Black Factory is twice that of corundum bricks used under...
Alkali-resistant refractory castable is a kind of refractory castable that can resist the erosion of metal oxides. It is mainly composed of refractory aggregate, binder aggregate, binder, and alkali-resistant agent. If it is divided by porosity If it is more than 45%, it is a light alkali-resistant refractory castable, and less than 45% is a heavy alkali-resistant refractory castable. Alkali-resistant refractory castable features: 1. Good high-temperature performance; 2. Strong alkali resistance and corrosion resistance; 3. Can resist the erosion of sodium salt melt; Alkali-resistant refractory castable scope of application: Alkali-resistant refractory castables are mainly used in industrial furnaces with alkali corrosion in industries such as iron and steel, nonferrous metals, glass, machinery, and petrochemical industries. Among them, heavy alkali-resistant refractory castables are mainly used in the kiln tail, kiln head, preheater, discharge port, tuyere, and other parts of the calcined alumina rotary kiln and cement rotary kiln. Lightweight alkali-resistant refractory castables are mainly used for the top cover of the preheater, cylinder body, and thermal insulation lining of the above-mentioned rotary kiln. The main components of refractory castables: 1. The chemical composition of light alkali-resistant refractory castables is generally: Al2O3 content of 30% to 55% and SiO2 content of 25%...
Refractory cement is a very common refractory castable, which is widely used in the construction of various high-temperature kilns. In the production and use of refractory cement, pouring construction is a crucial part. How to carry out good Construction, the construction team of refractory cement pouring manufacturers play a very important role. First of all, refractory cement must have rich experience and a professional technical construction team in the construction process. They are very familiar with the specificity and performance of refractory cement and can provide suitable solutions according to different construction environments and requirements. Whether it is a high-temperature furnace, chemical equipment, or building structure, they can formulate the best-pouring plan according to the specific situation. Secondly, the excellent construction team is equipped with professional construction equipment and tools, which can ensure the quality and efficiency of construction. At the same time, they also master advanced construction technology and operation methods, which can ensure the pouring quality and construction safety of refractory cement. During the construction process, the construction team also needs to communicate and confirm with the on-site personnel, which requires a construction team with strong professional capabilities. They will conduct detailed demand analysis and communication with customers...
There are many ways to build refractory bricks, such as the flat laying method, side laying method, and vertical laying method, and matching refractory mud is required for laying bricks. Refractory brick masonry method: 1. The refractory brick-flat laying method is mostly used for the furnace wall, and a few are used for the lower layer of the furnace bottom. In our country, the common flat masonry method is the brick wall “one along one top” masonry method. Ring bricks (such as blast furnace walls) are also laid flat. 2. Refractory bricks – side laying method The side laying method is mainly used for two parts: one is laying the bottom bricklayer, such as the bottom of the open hearth furnace and heating furnace; the other is the side vault, such as the tapping hole arch of the open hearth furnace. 3. Refractory brick-vertical masonry, also known as vertical masonry, is mainly used in two parts: one is the top layer of the furnace bottom, such as the bottom of the open hearth furnace and the bottom of the blast furnace; the other is the working layer of the furnace bottom, such as the bottom of the open hearth furnace....
With the continuous development and technological innovation in the global industrial field, refractory materials, as an important raw material, have also received extensive attention. Refractory materials play an extremely important role in various industrial fields. Under harsh working environments such as high temperature and chemical corrosion, they can maintain structural stability and have good mechanical strength and heat resistance. In the future, with the increasing demand for refractory materials in industrial production, the development prospects of refractory materials will become more and more broad. This article will analyze and expound the development trend and prospect of refractory materials. First, the development trend 1. Develop materials with more advanced refractories and higher performance In various industries, higher requirements are put forward for the performance and service life of refractory materials in extreme environments such as high temperature and chemical corrosion. Therefore, developing more advanced and higher performance refractories has become an important task for refractory manufacturers and researchers. For example, in response to the problem that existing refractory materials are prone to thermal shock brittle failure at high temperatures, new refractory materials have been developed to prevent thermal shock and brittle failure. In addition, scientists are developing new refractory materials to...
Can the new insulation brick with a density of 0.25 replace the clay insulation brick with a density of 0.6? The success of new insulation brick replacements depends on several factors, including the specific application involved, performance requirements, and technical specifications. Here are some factors to consider: Insulation performance: The new insulation brick with a density of 0.25 may have better performance in insulation performance than the clay insulation brick with a density of 0.6 because low-density materials usually have better insulation performance. However, it was crucial to ensure that the new insulation bricks would meet the required insulation requirements. Structural stability: Low-density materials may not be as structurally stable as high-density materials. In some cases, such as walls that support weight, lower-density materials may require additional support structures for stability. Load-bearing capacity: If the insulation is used to support the structure, it is necessary to ensure that the load-bearing capacity of the new insulation brick is sufficient for the expected load requirements. Durability: Clay insulation bricks with a density of 0.6 are generally durable enough to maintain performance under adverse environmental conditions. The durability of new insulation bricks is also a factor to consider. The convenience of construction: The...
Home Tel Email Inquiry
