Refractory bricks are essential components in industries that require high-temperature furnaces and kilns. These bricks are designed to withstand extreme temperatures, corrosive chemicals, and mechanical stresses, making them an indispensable material in metallurgy, glassmaking, cement manufacturing, and other industrial applications. In 2023, the market for refractory bricks is expected to grow due to increasing demand from various industries. In this blog post, we will explore the top 5 refractory bricks for sale in 2023.
RS Alumina Fire Bricks for Sale
Fireclay Bricks: Fireclay bricks are made of a mixture of clay and shale, which makes them highly resistant to thermal shocks and chemical attacks. They have excellent insulation properties and can withstand temperatures up to 1700°C. Fireclay bricks are commonly used in blast furnaces, coke ovens, and other high-temperature applications.
High Alumina Bricks: High alumina bricks are made of bauxite, a material rich in aluminum oxide. They have high refractoriness, excellent thermal shock resistance, and low thermal conductivity. High alumina bricks can withstand temperatures up to 1800°C and are commonly used in steelmaking, ceramics, and cement manufacturing.
Silica Bricks: Silica bricks are made of pure silica, a material that is highly resistant to thermal shocks and chemical attacks. They have excellent insulation properties and can withstand temperatures up to 1700°C. Silica bricks are commonly used in glassmaking, ironmaking, and non-ferrous metal smelting.
Magnesia Bricks: Magnesia bricks are made of magnesite, a material rich in magnesium oxide. They have high refractoriness, excellent thermal shock resistance, and low thermal conductivity. Magnesia bricks can withstand temperatures up to 2000°C and are commonly used in cement manufacturing, steelmaking, and non-ferrous metal smelting.
Carbon Bricks: Carbon bricks are made of graphite, a material that has high thermal conductivity and low thermal expansion. They have excellent resistance to thermal shocks and chemical attacks and can withstand temperatures up to 3000°C. Carbon bricks are commonly used in electric arc furnaces, blast furnaces, and other high-temperature applications.
In conclusion, refractory bricks are essential materials for industries that require high-temperature furnaces and kilns. In 2023, the market for refractory bricks is expected to grow, and these top 5 refractory bricks will be in high demand. Whether you are in the steelmaking, cement manufacturing, or glassmaking industry, these refractory bricks will provide you with the thermal resistance, mechanical strength, and chemical resistance you need to operate your industrial processes effectively.
Magnesia carbon brick is a type of refractory brick used in the electric arc furnace lining as a safety measure. An electric arc furnace is designed to contain extreme temperatures, pressure, and corrosion, thus making it a very dangerous piece of equipment, and safetyitating measures be taken to protect those that work near it. Magnesia-carbon brick for electric furnaces refers to a refractory product for electric furnaces made of magnesia and graphite as raw materials. Because this kind of brick has the characteristics of high fire resistance, high corrosion resistance, excellent heat peeling resistance and high-temperature volume stability, high thermal shock resistance, etc., it has been popularized and applied quickly. Magnesite carbon bricks are an effective solution to this problem, as it is able to withstand and survive the conditions of an electric arc furnace, thus providing protection from accidental injury or damage to property.
When it comes to finding a quality mag carbon bricks for your electric arc furnace lining, your first point of contact should be your refractory lining materials manufacturer or supplier. Many manufacturers or suppliers will be able to provide you with the specific type of design to meet the listed requirements and can provide further advice on which type of brick will be most suitable for your electric arc furnace. Additionally, you can also research purchasing options online to find the best price and quality available. Rongsheng refractory brick manufacturer is a powerful refractory brick manufacturer and sales manufacturer, providing high-quality refractory brick lining products and refractory lining solutions for the refractory lining of various industrial kilns.
Magnesia Carbon Bricks Manufacturer
When looking to purchase Magnesia carbon brick (https://cheapfirebricks.com/magnesia-carbon-brick/), there are several factors you should consider. These include the manufacturer or supplier, the size and shape of the brick, and the material it is made from. You should also ensure that the brick meets the standards for Safety and quality specified by the furnace manufacturer or supplier. Additionally, it is important to consider the fire resistance of the brick, which can help to ensure the safety and longevity of the electric arc furnace lining.
Finally, it is also important to consider the cost of Magnesia carbon brick. The cost of purchasing and installing the brick, as well as the ongoing cost of maintenance, could all potentially be significant, so making sure that you are purchasing a quality brick at a Competitive price is the key to ensuring the long-term success of your electric arc furnace.
Overall, purchasing magnesite carbon bricks for your electric arc furnace lining is the only way to ensure the safety of those working near the furnace and the protection of property. Considering the manufacturer or supplier, size and shape, material, fire resistance, and cost are all important factors to consider when looking to purchase mag carbon bricks.
One great source of magnesia carbon brick for electric arc furnace lining is Rongsheng. Which is an experienced leader in the industry, providing high-quality products coupled with excellent customer service. They have an extensive range of products, which includes magnesite carbon bricks, along with an array of other bricks and castables. In addition, they offer competitive pricing with discounted rates for larger orders.
Another advantage of Rongsheng Refractory supplier of magnesia carbon brick for electric arc furnace lining is, they have over two decades of experience in the refractory industry and are highly regarded for the quality of their products. Their mag carbon bricks are some of the toughest in the industry and come in different sizes to suit a variety of needs. They also offer competitive pricing, with discounts available for larger orders.
Finally, magnesia carbon brick for electric arc furnace lining, Rongsheng company has a reputation for providing high-quality products and great customer service. They offer a wide selection of refractory products and are consistently extending their supply chain to meet customer needs. In addition, they have competitive pricing and are willing to negotiate special deals with customers.
The Rongsheng mag carbon bricks for electric arc furnace lining provides quality products and great customer service, which is essential for businesses that use electric arc furnaces. When considering where to purchase magnesia carbon brick for electric arc furnace lining, it is important to take into account factors such as quality, price, and product availability in order to make the best decision.
In summary, Where to buy Magnesia Carbon Brick for Electric Arc Furnace Lining? From Rongsheng Refractory Bricks Factory. And it is necessary to choose a strong magnesite carbon bricks refractory brick manufacturer with guaranteed product quality and certain after-sales service capabilities.
The main factors affecting the service life of chrome corundum bricks are the load of the gasifier, the operating temperature, the melting point of coal ash, the composition of ash and slag, and the type of gasifier.
High-Quality Chrome Corundum Bricks
Chromium corundum bricks (https://cheapfirebricks.com/chrome-corundum-brick/) on the cylinder body and vault of the gasifier, also known as high chrome bricks. Its service life is generally 8000~20000 h, and the service life of slag mouth and cone bottom high chrome bricks is generally 3000~6000 h. The mismatch of the service life of each part greatly affects the overall service life of the gasifier and the rhythm of the entire production. And increased operating costs. Therefore, how to improve the service life of chrome corundum bricks for gasifiers?
(1) Increase the Cr2O3 content in the material to optimize its anti-slag erosion performance. Due to the excellent slag erosion resistance and slag penetration resistance of Cr2O3 materials, increasing the Cr2O3 content in chrome corundum bricks can effectively improve the service life of chrome corundum bricks. However, too much Cr2O3 content will affect the sintering of the product and reduce the strength and thermal shock resistance of high chrome bricks. Therefore, while increasing the content of Cr2O3 in high chrome bricks, attention must be paid to the reduction of strength and thermal shock resistance.
(2) Improve the density of high chrome bricks and reduce the apparent porosity on the brick surface. Improving the density of high chrome bricks, or using measures such as salt immersion and surface coating to fill the apparent pores on the surface of high chrome bricks can effectively prevent the infiltration of slag and improve the service life of high chrome bricks.
(3) Improve the strength of high chrome bricks and increase their erosion resistance. High-chrome bricks are subjected to strong erosion by high-speed airflow and entrained slag during use, and the erosion resistance and wear resistance of bricks are directly related to their strength. By optimizing the particle gradation of the product, increasing the firing temperature of the product, adding new binders and burning accelerators, etc., the purpose of improving the strength of high-chrome bricks can be achieved.
(4) Improve the thermal shock resistance of high chrome bricks by using phase transformation toughening. High chromium bricks have poor thermal shock resistance, and thermal shock cracks are prone to occur during the gasifier oven, feeding, and actual operation, thereby accelerating the penetration and erosion of coal slag. Using the 3% ~ 5% volume effect produced by the phase transition from tetragonal ZrO2 to monoclinic ZrO2, an appropriate amount of microcracks are generated around the ZrO2 particles, which can buffer the thermal stress generated inside the product due to temperature changes and improve the thermal shock resistance of the product.
(5) According to the differences in the erosion rate and dominant damage mechanism of refractory bricks in different parts of the gasifier, certain properties of refractory bricks in certain parts can be improved in a targeted manner. And adopt comprehensive furnace technology to prolong the overall service life of gasifier refractory materials.
The selection of boiler refractory bricks should be based on the working conditions of specific parts, and comprehensively consider factors such as material wear resistance, high-temperature resistance, peeling resistance, thermal conductivity, and material fixing method. Most of the parts that are useful to boiler refractory bricks are composite bricks of special-shaped structures. It requires high compressive strength and high-temperature performance.
Wear-resistant silicon carbide bricks for boilers
Wear-resistant silicon carbide bricks for boilers
Due to the damage to the boiler lining, there are mainly two types of peeling and wear. The main reason for spalling is the thermal stress caused by the frequent start and stop of the boiler. Therefore, refractory bricks for boilers should choose wear-resistant series boiler refractory bricks, such as silicon carbide wear-resistant bricks, phosphate wear-resistant bricks, etc. If high-temperature performance is required, the content of impurities that are easy to form eutectics such as Na2O, K2O, Fe2O3, and TiO2 should be strictly controlled. Parts with large temperature fluctuations require materials with excellent thermal shock resistance.
Boiler refractory bricks are used to isolate the flame burning in the boiler and each heating surface from the outside world, so the refractory bricks used are required to have heat resistance. The brick types of refractory bricks for boilers include furnace wall implicated bricks, furnace wall hanging bricks, pipe protection bricks, pull hook bricks, bracket bricks, and other special-shaped models.
To buy wear-resistant silicon carbide bricks for boilers, please search https://cheapfirebricks.com/, for free samples and the latest quotations for refractory bricks for boilers. And the boiler refractory lining material configuration scheme.
Lightweight mullite bricks are widely used in all-electric glass melting furnaces for their excellent high-temperature resistance, good thermal shock resistance, and reusability.
The all-electric glass melting furnace basically has no pollution to the environment, which has important guidance and practical significance for the development of the glass industry and the reduction of environmental pollution. And now many glass factories have adopted the all-electric melting process. The electric melting furnace melts because of its cold top (50~150℃) or semi-cold top. In the baking stage, it needs to withstand the high temperature of 1050~1200℃, so that the material selection and structure of the melting pool roof brick are different from the hot top pool kiln. At present, the mainstream materials used in the country are sintered clay bricks (clay bricks for short) and lightweight mullite bricks.
Advantages of Using Lightweight Mullite Bricks in Electric Melting Furnaces
The difference between the suspended crown of the electric melting furnace and the other wall is that its load-bearing method is the hanging load-bearing method of the top steel structure. There are two types of materials: clay bricks and lightweight mullite bricks. Clay bricks are not commonly used because of their heavyweight. The most commonly used is a lightweight mullite brick with a density of 1.0g/cm3.
The advantages of using lightweight mullite brick suspended crown electric melting kilns are as follows.
(1) Lightweight and good heat preservation effect. The density of 1.0g/cm3 reduces the dead weight of the dome body and also reduces the load of the load-bearing steel beam. At the same time, during the commissioning of the kiln, a good insulation effect can help reduce energy loss and obtain a higher initial charging temperature.
(2) High-temperature resistance. The operating temperature can reach 1400~1500℃, compared with the maximum operating temperature of the electric furnace dome top not exceeding 1300℃, which can fully meet the demand.
(3) The shape is not restricted. The shape of the hanging chute can be freely designed according to the kiln type, which can meet the sealing requirements of all shapes of electric melting kilns.
(4) Simple installation and operation. After the steel structure is installed, it can be continuously hung and mud masonry according to the brick number.
(5) It can be reused. The hanging anchor and the steel structure can be hoisted and moved as a whole. If the suspended crown can be hoisted as a whole, it can be reused after overhaul.
Application of Lightweight Mullite Brick Suspended Crown in Electric Furnace
The lightweight mullite brick suspended crown has an absolute advantage in performance. The following analyzes the future development direction of the suspended crown from two aspects of small electric melting furnace and large electric melting furnace.
Application of Suspended Crown in Small Electric Furnace
A small electric melting furnace (melting area 1-8 m2, less than 1 m2 is not in the scope of this article) can use a hanging structure, the main factor limiting its promotion is cost. With the reduction of material costs and people’s emphasis on resource reuse, it is believed that there will be more space for lightweight mullite suspended crown troughs to be used in small electric melting furnaces.
Application of Suspended Crown in Large Electric Furnace
With the gradual development of electric melting furnaces in the direction of large melting areas (melting areas greater than 20m2) in recent years, new challenges have also been raised for the design of suspended crowns. An increase in the hanging area means an increase in weight. In order to ensure the reusability of the hanging sling, a split hanging sling structure can be established. As shown in the figure, it is a schematic diagram of the splitting of a 21 m2 electric melting furnace. The dome body is divided into 3 parts, each part is independent of load-bearing, and can be separated and hoisted separately during loading and unloading.
Schematic Diagram of the Splitting of a 21 m2 Electric Melting Furnace
Lightweight mullite hanging bricks have been used in many projects, and their advantages have been fully verified. What needs to be promoted vigorously at present is its use in small electric melting kilns. With market demand, ultra-large electric melting furnaces will also be available. At that time, the span of the load-bearing steel structure will pose new challenges to the design.
To learn more about light mullite bricks, mullite insulation bricks and light mullite brick suspended crowns, please contact the refractory brick manufacturer. The quality of the lightweight mullite brick suspended crowns of refractory brick manufacturers is guaranteed, and the lightweight mullite suspended crown can be customized according to the specific working conditions of your glass furnace. Moreover, strong refractory brick manufacturers also have comprehensive customer service. Not only can we provide pre-sale technical services, but also can solve the worries of customers in the use of refractory bricks.
The main crystal phases of low-creep high-alumina refractories are mullite and corundum phases. Different ways of mullite chemical reactions occur during the firing of products, and these mullite chemical behaviors must be rationally designed and controlled. Only by controlling the mullite chemical reaction in the production of high alumina bricks can high-quality low creep high alumina bricks be produced.
Low Creep High-Alumina Bricks from Rongsheng Factory
The Mulliteization of Low-Grade Low-Creep High-Alumina Bricks
The creep temperature of low-grade low-creep high-alumina bricks is generally 1200~1350℃, and these products can be produced entirely with bauxite clinker.
Research on the basic high-temperature creep properties of alumina materials shows that the creep resistance is related to the alumina content of the material, and the order of its superiority and inferiority is grade II > grade I > grade III. The excellent creep resistance of grade II bauxite depends on its columnar mullite network structure. But in fact, it is difficult to produce low-creep bricks with bauxite clinker such as grade II calcined by the block method. The reason is not only the poor sintering degree of bauxite clinker but also the uneven chemical composition of bauxite clinker such as grade II.
Figure 1 photo of the microstructure of bauxite clinker (left) & Table 1 chemical composition of the dense area (right)
Figure 1 is a photo of the microstructure of bauxite clinker such as grade II. The chemical composition of the dense area on the upper left and the loose area on the lower right is quite different (see Table 1). That is to say, a considerable part of this type of II material is actually an inhomogeneous mixture of grade I and grade III materials. As a result, the raw material itself undergoes mulliteization reaction (between particles and fine powder, between fine powder and fine powder) during the firing process, and is accompanied by volume expansion. As a result, the porosity of the product after firing is relatively high, and other physical properties are reduced. Therefore, a bauxite clinker such as grade II is used to prepare low creep bricks. First, select raw materials with a better sintering degree (water absorption rate of 3~6%) to strengthen process control. For example, increase the fineness of the fine powder and extend the burning time to reduce the expansion effect of mullite and produce high-quality low-creep bricks.
When using alumina materials such as grade III to make low-creep high-alumina bricks, in order to improve the creep resistance, some alumina materials such as I or II can be added to the matrix. The alumina content of the matrix should be close to the alumina content of the mullite composition, and not exceed the mullite composition.
How to Produce High-Quality Low-Creep High-Alumina Bricks?
According to the different mullite chemical behaviors of the raw materials for producing low creep high alumina bricks, different low creep high alumina brick production processes are reasonably designed to control these different mullite chemical processes. These materials can be divided into two categories. One type makes the mullite chemical reaction fully and completely, and the mullite grains can develop and grow. Such as low-creep high-alumina bricks produced by all bauxite clinker, and low-creep high-alumina bricks produced with kyanite. The other type makes its mullite petrochemical partial reaction. Such as adding sillimanite, low creep high alumina bricks produced by adding silica. Controlling the expansion of products during firing is an important part of the brick-making process.
Because there are many types of thermal kilns. Can be roughly divided into three categories. One type is raw material calcining kilns, such as shaft kilns and rotary kilns. The second category is product firing kilns, such as tunnel kilns, inverted flame kilns, shuttle kilns, etc. The third category is raw materials (generally high-purity raw materials) light-burning kilns, such as multi-layer furnaces, boiling furnaces, suspension light-burning furnaces, etc. In addition, rotary kilns and double-beam shaft kilns used for the calcination of active lime are also light-burning kilns. Of course, there is also some baking equipment for non-burning products. The normal operation of these thermal kilns is inseparable from refractory bricks. Rongsheng refractory manufacturers provide high-quality kiln refractory bricks for sales. If you need it, please contact us to buy it. Next, let’s understand which thermal kilns require refractory brick linings.
Rongsheng Refractory Bricks for Sale
Various Industrial Kilns Requiring Refractory Brick Lining
The main thermal kilns in the cement industry are rotary kilns and vertical kilns. Traditional rotary kilns are divided into the wet method, dry method, and semi-dry method. With the advancement of science and technology, the new dry-process cement rotary kiln system with suspension preheating and external decomposition technology as the core has replaced the traditional rotary kiln and has achieved an advantageous position in cement production.
Thermal kilns in the glass industry are mainly tank kilns and crucible kilns. At present, the crucible kiln is basically no longer in use except for some special glass products. The tank kiln is generally divided into flat glass tank kiln and daily glass tank kiln. Among them, the float process of forming flat glass with a tin bath has shown its strong vitality. Of course, the formed glass product needs to be further heated and annealed to become a high-quality glass product. Therefore, there is an annealing furnace. Thermal kilns in the ceramics and building materials industry mainly refer to tunnel kilns (continuous), inverted flame kilns, and shuttle kilns (intermittent) developed therefrom, and wheel kilns (semi-continuous) for the production of bricks and tiles. It can be seen that refractory bricks (https://cheapfirebricks.com/) are widely used in their fields.
The earliest continuous production tunnel kiln used in the ceramic industry was a kiln-car tunnel kiln. Later, non-kiln-car tunnel kilns appeared, such as roller kilns, pusher kilns, walking kilns, and air cushion kilns. In particular, the emergence of roller kilns has made it possible for rapid firing, fully automatic control, and low-pollution production. This provides great convenience for the firing of high-quality, high-grade, and high-grade ceramic products for refractory bricks. Of course, due to the limitation of the roller kiln’s own structure, it cannot completely replace the kiln-car tunnel kiln at present. Shuttle kiln is a small modern kiln developed on the basis of inverted flame kiln based on the kiln car technology in tunnel kiln. The furnace lining is almost entirely built with high-quality insulation materials, the kiln body has low heat storage, and its thermal system can be adjusted at any time according to the needs of the product, and it is very mobile and flexible. It is very suitable for laboratory research, small test, pilot test in new product development, and roasting of some small-batch products. This kiln is also suitable for small batch production of high-tech ceramic materials (also known as special ceramics or functional ceramics, etc.). Because of the high technical content of its products, the added value of the products is high. Therefore, it is very popular among scientific and technological workers, small and medium-sized enterprises, and new technology promoters. Similar to the working principle of shuttle kilns, there are bell kilns, steamer kilns, and lifting kilns. High-Quality Kiln Refractory Bricks for Sale to South Africa.
In addition, in order to make full use of the waste heat of thermal equipment, the development of waste heat boilers has been on the agenda. In particular, the application of heat pipe technology with extremely high heat transfer efficiency makes low-temperature waste heat (boiler) power generation possible. Examples of its success are boilers used in new dry-process cement clinker calcination systems and float glass kilns. Refractory bricks In the refractory industry, the vaporization cooling lining of high-temperature shaft kilns for calcining raw materials and the waste heat boiler (steam generation) in tunnel kilns are also examples of waste heat utilization.
Rongsheng Kiln Refractory Bricks for Sale
Rongsheng is an experienced manufacturer and seller of refractory bricks. Rongsheng’s refractory brick products for kilns have been sold to more than 60 countries and regions all over the world. For example, Russia, South Africa, Kazakhstan, Philippines, Chile, Malaysia, Uzbekistan, Indonesia, Vietnam, Kuwait, Turkey, Zambia, Peru, Mexico, Qatar, etc. Rongsheng strictly controls the quality of refractory bricks for various kilns and does every detail well. In customer service and product, after-sales service can achieve customer satisfaction. Therefore, our customers have a high rate of return orders. Rongsheng people are working hard to build the Rongsheng brand step by step. Rongsheng looks forward to cooperating with you.
The rapid development of non-burned refractory bricks, the increase in varieties, and the further improvement of performance, the use of non-burned refractory brick refractory products has been continuously expanded. On the surface, unburned refractory bricks should be classified as shaped refractory materials, because they are no different from the traditional production process of refractory bricks except that they are not burned. From the perspective of the use of binders and admixtures in the ingredients, they are the same as unshaped refractories. Therefore, some people think that unburned bricks belong to the category of unshaped refractories. Next, let’s learn about a variety of Non-burned Refractory Bricks Products.
Non-burned Refractory Bricks Products
Variety of Non-burned Refractory Bricks Products
At the very beginning, natural refractory raw materials were mixed with air-hardening, or fire-hardening, or hydraulic binders to prepare chemically bonded unburned bricks. Such as unburned clay bricks, unburned high alumina bricks, unburned magnesia bricks, etc. Now, all refractory raw materials can be used to make non-burned bricks of various varieties and different purposes.
Such as unburned magnesia carbon bricks, unburned magnesia-calcium bricks, unburned magnesia dolomite bricks, unburned magnesia alumina spinel bricks, unburned magnesia zircon bricks, unburned magnesia chrome bricks. Do not burn corundum bricks, do not burn high alumina spinel bricks, do not burn andalusite bricks, do not burn pyrophyllite bricks, do not burn corundum spinel bricks. Non-burning forsterite bricks, non-burning floating bead insulation bricks. Unburnt Al2O3-SiC-C brick, unburnt MgO-SiC-C brick. Unfired composite aluminum magnesia bricks, unfired iron shell magnesia aluminum bricks, unfired iron shell magnesia chrome bricks, unfired fly ash insulation bricks, etc.
Rongsheng refractory brick manufacturer. It can be said that almost all varieties of refractory products (bricks) can make corresponding unburned products (bricks).
Widely Used Non-burned Refractory Bricks Products
Compared with fired products, unfired products have better thermal shock stability, but their strength is lower. However, experiments have shown that using additives to improve or enhance the performance of unburned refractory products is also one of the effective methods. Therefore, non-burnt bricks are more and more widely used in various industries.
The use of non-burnt bricks is rapidly expanding in our country. In the iron and steel industry, which consumes the most refractory materials, most of the thermal equipment that uses fired bricks is switched to non-fired products. For example, the lining of the iron-making blast furnace is changed from carbon bricks to non-fired aluminum carbon bricks, and the hot metal ladle uses non-fired Al2O3-SiC-C bricks. Non-burning andalusite bricks are easy to wear parts of ladle. Almost all steel-making furnace linings use unburned magnesia carbon bricks, and ladle linings use unburned alumina-magnesia bricks or alumina-magnesia-carbon bricks (some steel ladles use aluminum-magnesia castables). The lower tank of the RH furnace uses unfired periclase-spinel bricks. Unburned magnesia carbon bricks used in the vacuum treatment device of molten steel. For continuous casting, there is no burning sliding nozzle, no burning slide, no burning long nozzle. High-aluminum-silicon carbide non-fired bricks for reverberatory furnaces.
Secondly, the rotary kiln for burning cement clinker used unburned high alumina bricks and unburned magnesia chrome bricks very early. Dolomite or active lime-burning rotary kiln uses magnesia-alumina spinel without burning bricks. Non-fired magnesia bricks are used in the lattice room of the glass melting furnace. Non-burnable lightweight insulation bricks for petrochemical, electric power, machinery and other industries.
Particularly worthy of recommendation is the use of Si3N4 combined with SiC products for aluminum electrolytic cells. The firing process of the products is complicated and the cost is high. Refractory researchers have studied the use of different particle size silicon carbide, phenolic resin combined, Si3N4-AlN-Al composite powder as the matrix of unsintered products, instead of Si3N4 bonded SiC products. After the unfired product is impregnated with silica sol, the microstructure is uniform, the corrosion resistance of cryolite and aluminum liquid is equivalent to that of the fired Sialon bonded SiC brick, and its oxidation resistance is better than that of the Si3N4 bonded SiC fired product.
Unburnt bricks can be used for many of the above important parts and harsh conditions. Therefore, after careful research and the use of modern technology, unfired bricks are likely to completely replace fired products.
Questions and Answers of Non-burnt Refractory Bricks Refractories
As we all know, refractories are materials used under high temperature conditions. Why do they need to be fired in advance? In fact, the firing of refractory materials is to ensure the structural strength of the product at room temperature and high temperature, and the volume stability at different temperatures. According to modern refractory manufacturing technology, using suitable binders and additives, unfired bricks can fully meet or exceed the technical indicators of fired bricks. Moreover, the production of non-burning refractory products, efficient use of resources, energy saving and emission reduction, and environmental protection. To learn more about refractory brick products, please visit our website: https://cheapfirebricks.com/.
Introduction:Corundum silicon carbide brick is an energy-saving material with good thermal stability, abrasion resistance, good corrosion resistance, thermal shock resistance, and high thermal conductivity. Suitable for wear-resistant and refractory lining of industrial furnaces.
The Raw Material Composition of Corundum SiC Bricks
Corundum SiC Refractory Bricks are made of silicon carbide (SiC) as the main raw material, mixed with various binders according to requirements, and formed by high pressure. Corundum SiC Bricks have good thermal stability and high thermal conductivity, and good corrosion resistance. It is an ideal energy-saving material for industrial kilns.
Characteristics of Corundum SiC Refractory Bricks
Corundum silicon carbide has good stability to acid, alkaline slag, metal, and glass solutions. Corundum silicon carbide refractory bricks can be used in high temperature or oxidizing atmosphere of reducing atmosphere.
Corundum SiC Refractory Bricks have high thermal conductivity, good mechanical properties, excellent alkali resistance, slag resistance, and thermal shock resistance.
Corundum SiC brick is resistant to acid and alkali slag. High strength, low thermal expansion coefficient, good thermal conductivity, and good thermal stability.
Packaging of Corundum SiC Refractory Bricks
The packaging of Corundum SiC Refractory Bricks is generally pointed to the export packaging. Generally use fumigated wooden pallets, paper corner protectors, plastic steel belts, and plastic shrink film protection. In addition, special packaging can be used according to customer needs.
Why choose Corundum SiC Bricks to be Used in High-temperature Furnaces?
Refractory materials are often used in the construction of kilns, and SiC bricks are wear-resistant products of refractory materials. Corundum SiC brick is made of brown fused alumina or white corundum and tabular corundum. It adds silicon carbide powder and silicon carbide particles. After scientific matching, it is formed under high pressure and fired in a high-temperature kiln. It is a reliable refractory material.
The high-temperature resistance, corrosion resistance, and wear resistance of corundum silicon carbide bricks are widely used in blast furnace body, tuyere combination bricks, slag joint bricks, iron joint bricks, and other steel industries. It is an ideal substitute for traditional corundum brick. In the kiln entrance and transition zone of cement rotary kiln, corundum silicon carbide bricks are also used instead of traditional anti-stripping high alumina bricks. The abrasion resistance and anti-stripping effect are very obvious.
Corundum silicon carbide bricks are used for aluminum reduction cell lining, aluminum melting pipe and ceramic kiln, large and medium blast furnace bottom, furnace waist and hearth, aluminum refining furnace lining, zinc distillation tank lining.
As we all know, corundum silicon carbide bricks have high thermal conductivity, good wear resistance, and heat shock resistance. Corrosion-resistant Corundum SiC Bricks, high-quality corundum silicon carbide bricks, Rongsheng refractory manufacturers can provide standard size specifications. In addition, Rongsheng can also customize corundum silicon carbide fireproof bricks of other specifications and sizes according to the production needs of customers. For more information about Rongsheng refractory bricks: https://cheapfirebricks.com/.
As a fresher, you know the best about corundum mullite bricks like this: resistant to high temperatures, erosion, and chemical stability, and they are considered to be an erosion-resistant, high-quality refractory. But for the naming of the corundum mullite brick’s brands, you may be confused not less than once.
Know about the following infomation, you may be seems more like a refractory expert.
The naming of corundum mullite bricks is according to the traditional refractory brick products. That is, the first letter of Chinese Pinyin and the percentage of the main chemical components of the product. The corundum-mullite bricks are use the initials G, M, and Z of the Chinese characters of Gang, Mo, and Brick to represent the corundum mullite bricks, and the grades of the main chemical component Al203 are used to distinguish the grades. For example: GMZ-85 represents the grade of corundum mullite brick with 85% Al203.
Because corundum mullite brick not only has the high temperature performance of corundum material, but also combines the good thermal shock resistance of mullite, it has high temperature strength and good anti-scour and erosion ability. It is widely used in high temperature kiln such as blast furnace, ironmaking furnace and carbon black reaction furnace.
Rongsheng Kiln Refractory Co., Ltd. is a professional manufacturer of refractory materials. The factory’s production line is well equipped with advanced equipments. And the Customer service team is professional. RS can provide the best products and services for refractory users.
RS Cheap Fire Bricks 