English
italiano
-
How to improve the stability of insulating refractory bricks
In the manufacturing process of insulating refractory bricks, the selection of raw materials is crucial and directly affects the performance and stability of the final product. Dongtai Hongda is well aware of this, so it has taken strict control measures in the raw material procurement process. The company is committed to selecting high-quality raw materials that have been strictly screened and tested to ensure that each batch of raw materials can meet the high standards of the industry. To this end, Dongtai Hongda has formed a professional raw material procurement team to go deep into the market and grasp the industry trends in real time to ensure that the purchased raw materials not only meet national standards, but also meet the company's strict requirements for high quality and high stability. In addition, Dongtai Hongda regularly conducts comprehensive evaluations and audits of raw material suppliers to ensure the reliability and stability of raw material sources, thereby laying a solid foundation for the high performance of the products. In terms of production technology, Dongtai Hongda also demonstrates its professionalism and foresight. The production process is one of the key factors affecting the stability of insulating refractory bricks. The company has adopted a series of advanced process technologies and equipment to ensure the high stability and excellent performance of the products during the manufacturing process. For example, Dongtai Hongda has introduced an automated batching and molding production line, which significantly improves the density and uniformity of the product by precisely controlling the proportion of raw materials and molding pressure, thereby enhancing its thermal shock resistance and mechanical strength. In addition, equipped with advanced firing equipment such as 1500℃ high-temperature tunnel kiln and 1700℃ shuttle kiln, Dongtai Hongda can effectively control the temperature curve and atmosphere during the firing process while meeting the high-temperature firing requirements, further improving the stability and performance of the product. Innovation in product design is also one of the key factors for Dongtai Hongda's success in the field of insulating refractory bricks. The company has a professional R&D team that pays close attention to market dynamics and industry trends, and continues to innovate product design to meet the application needs of different industries and different working conditions. For example, for the high-temperature corrosion environment of specific industries, Dongtai Hongda has developed insulating refractory bricks with excellent corrosion resistance; and for applications that need to withstand greater mechanical stress, the company has designed high-strength and high-toughness products. These innovative designs not only improve the stability of the product, but also effectively broaden the application range of the product and meet the diverse needs of the market.
Read More -
What are the effects of raw materials on the stability of insulating refractory bricks
The performance of insulating refractory bricks is directly affected by the type of raw materials, especially in terms of chemical composition and physical properties. Dongtai Hongda Heat Resistant Material Co., Ltd. mainly uses refractory clay as the core raw material in the production process. This is because refractory clay not only has excellent refractory properties, but also shows good plasticity, making it an ideal choice for manufacturing insulating refractory bricks. In order to meet the specific needs of customers and the performance requirements of products, the company will also add light materials such as floating beads, refractory clay clinker, fly ash, etc. according to actual conditions. The addition of these lightweight materials not only effectively reduces the volume density of the product, but also significantly improves its thermal insulation performance, optimizes the microstructure of the insulating refractory bricks, and enhances thermal shock resistance and wear resistance. In the production of insulating refractory bricks, the composition of raw materials is crucial to their stability and reliability. Dongtai Hongda Refractory Material Co., Ltd. strictly controls the chemical composition, especially the content of alumina (Al2O3), in the selection of raw materials. Alumina is one of the main components of refractory materials, and its content directly affects the refractoriness and corrosion resistance of insulating refractory bricks. In order to ensure that the Al2O3 content of each batch of raw materials is within the specified range, the company uses precise chemical composition analysis to ensure the stability and consistency of the product, thereby improving the reliability of the final product. The processing technology of raw materials also has a profound impact on the performance of insulating refractory bricks. In the production process of Dongtai Hongda Refractory Materials Co., Ltd., the raw materials go through several key links such as batching, mixing, molding, drying and firing. Among them, the molding and firing stages are crucial to the final performance of the product. During the molding process, the raw materials need to be evenly pressed to ensure that the density and strength of the product meet the standards; and during the firing stage, the raw materials need to undergo high-temperature sintering to form a dense microstructure. Dongtai Hongda Refractory Materials Co., Ltd. uses advanced molding and firing technologies to ensure that the raw materials are fully processed during the processing process, which not only improves the stability of insulating refractory bricks, but also extends their service life.
Read More -
What is the impact of the preparation process on the performance of monolithic refractories
In the production process of refractory materials, the process links such as batching, mixing, molding, curing, firing and post-processing are interrelated and directly affect the performance and quality of the final product. As an industry-leading refractory manufacturer, Dongtai Hongda is committed to ensuring that each batch of products has excellent performance and reliability through advanced process technology and strict quality control. The criticality of batching and mixing processThe batching and mixing process is the basic link in the preparation of overall refractory materials, which determines the smooth progress of subsequent processes and the performance of the final product. Dongtai Hongda adopts a high-precision automatic batching system, which can accurately measure each raw material, greatly reducing the batching error caused by human factors. This precise batching not only ensures the uniformity of raw materials, but also lays a good foundation for subsequent mixing processes. Efficient mixing equipment ensures the uniform distribution of raw materials, improves the density and mechanical strength of the overall refractory materials, and optimizes the thermal conductivity and thermal shock resistance, providing customers with high-quality products. Diversity and flexibility of molding processThe molding process is an important link that affects the structural stability and performance of the overall refractory materials. Dongtai Hongda flexibly selects a variety of processes such as vibration molding, pressure molding and grouting molding according to the characteristics and application requirements of different materials. Vibration molding uses high-frequency vibration to arrange raw material particles closely, thereby improving the density and strength of the material; pressure molding strengthens the bonding between raw material particles by applying external pressure, which is suitable for application scenarios with high requirements for strength and corrosion resistance; and grouting molding can effectively cope with the preparation of complex shapes and thin-walled structures, ensuring the dimensional accuracy and shape stability of the product. Optimization of curing and firing processCuring and firing are crucial links in the preparation process of overall refractory materials, which directly affect the physical and chemical properties of the materials. Dongtai Hongda uses advanced equipment such as high-temperature tunnel kilns and shuttle kilns to ensure the full reaction of materials during the curing process and uniform heating during the firing stage. A reasonable curing system helps to form chemical bonds between raw material particles, significantly improving the strength and stability of the material; and precise firing control optimizes the internal structure of the material, promotes the adjustment of crystal phase transformation and porosity, thereby improving the high temperature resistance, corrosion resistance and thermal shock resistance of the overall refractory material. Scientific cooling and post-treatment processesCooling and post-treatment processes also have a profound impact on the final performance of the overall refractory materials. Dongtai Hongda implements a scientific cooling system to avoid internal stress concentration and crack formation caused by rapid cooling. At the same time, post-treatment processes such as grinding, sandblasting or coating treatment further improve the surface quality and corrosion resistance of the material. These post-treatment processes not only beautify the appearance of the product, but also enhance its durability and reliability in practical applications, so that it still performs well in extreme environments such as high temperature and high pressure.
Read More -
What factors affect the high temperature resistance of monolithic refractories
Refractory materials are widely used in high temperature environments, especially in industries such as metallurgy, chemical industry and power. Its high temperature resistance directly affects the safety and economy of equipment. In the research and development and production of refractory materials, Dongtai Hongda focuses on the comprehensive optimization of factors such as material composition, preparation process and use environment to ensure the excellent performance of products under high temperature conditions. Optimization of material compositionThe selection of refractory aggregates is one of the key factors affecting the high temperature resistance of refractory materials. Dongtai Hongda uses high-quality refractory aggregates, including high alumina, silica and magnesium. These aggregates not only have high melting points, but also have low thermal expansion coefficients and excellent thermal shock resistance, which can effectively improve the stability and durability of refractory materials in high temperature environments.Binders play a vital role in refractory materials. They tightly combine aggregates and powders to ensure the structural stability of materials at high temperatures. Dongtai Hongda uses high-performance binders such as silicate cement, aluminate cement and phosphates to enhance the mechanical strength and high temperature stability of refractory materials. In addition, the use of admixtures, such as plasticizers, accelerators and water reducers, also has a significant impact on the construction performance and high temperature resistance of refractory materials. By accurately adjusting the type and amount of admixtures, Dongtai Hongda is able to optimize the comprehensive performance of refractory materials and ensure that they maintain stable physical and chemical properties in high temperature environments. Improvement of preparation processThe preparation process of refractory materials also has an important impact on their high temperature resistance. The accuracy of batching and mixing is the basis for ensuring the stability of material performance. Dongtai Hongda uses advanced automatic batching and mixing equipment to ensure the accurate measurement and uniform mixing of each raw material, thereby improving the overall performance of refractory materials.During the molding and curing process, Dongtai Hongda optimizes the molding process and curing conditions, and adopts advanced technologies such as vibration molding and pressure molding to ensure that the material forms a dense structure. During the curing process, stable chemical bonds are formed through full reaction, which further enhances the high temperature resistance of refractory materials. The firing process is a key link in the preparation of refractory materials. Dongtai Hongda uses advanced firing equipment such as high-temperature tunnel kilns and shuttle kilns to ensure that the materials react fully at high temperatures and form a stable crystalline structure. At the same time, a reasonable cooling system helps to avoid cracks and peeling during the cooling process, thereby improving the high-temperature resistance of refractory materials. Adaptability to the use environmentThe use environment of refractory materials also has a significant impact on their high-temperature resistance. Inside high-temperature equipment, there is often a large temperature gradient, which puts higher requirements on the thermal shock resistance of refractory materials. Dongtai Hongda has significantly improved the thermal shock resistance of refractory materials by optimizing the material formula and preparation process, ensuring that it can effectively cope with temperature changes inside high-temperature equipment.At the same time, corrosive gases and melts inside the equipment pose a challenge to the chemical stability of refractory materials. To this end, Dongtai Hongda gives priority to refractory aggregates and binders with high corrosion resistance when selecting materials, and further improves the chemical stability of refractory materials by adding anti-corrosion agents and other measures, thereby extending their service life.
Read More -
How to improve the strength of insulating refractory bricks
In today's industrial applications, the strength and performance of insulating refractory bricks directly affect the safety and production efficiency of equipment. Dongtai Hongda Company continues to explore and innovate in this field, and is committed to improving the overall performance of insulating refractory bricks by optimizing raw material selection, improving production processes, and adding reinforcing agents and binders. Optimizing raw material selection and proportioningThe improvement of the strength of insulating refractory bricks is inseparable from the careful selection and scientific proportioning of raw materials. Dongtai Hongda Company selects high-purity refractory raw materials, including high-quality siliceous and high-alumina clays. These raw materials not only have excellent bonding properties, but also have high refractoriness. During the raw material screening process, the company strictly controls the impurity content to ensure uniform particle distribution, thereby improving the overall strength of the product. In addition, Dongtai Hongda is also actively exploring the application of new raw materials, such as adding hard particles such as quartz sand and corundum in appropriate amounts. These hard particles can form a stable skeleton structure during the firing process, thereby further enhancing the strength and durability of the product. Improving production processes and molding technologiesThe innovation of production processes and molding technologies is an important part of improving the strength of insulating refractory bricks. Dongtai Hongda Company introduced advanced automated batching and molding production lines to ensure that each batch of products has accurate batching and stable shape. During the molding process, the company uses high-pressure molding technology to increase the molding pressure to make the raw material particles more closely bonded, thereby significantly improving the density and strength of the product. At the same time, Dongtai Hongda has also introduced advanced firing technologies such as high-temperature tunnel kilns and shuttle kilns. By accurately controlling the firing temperature and insulation time, a more stable crystalline structure is formed inside the product, further improving its strength and fire resistance. Adding reinforcing agents and bindersIn order to further improve the strength of insulating refractory bricks, Dongtai Hongda Company adopted the strategy of reinforcing agents and binders in the production process. Reinforcing agents such as alumina powder and silica fume can significantly improve the firing properties and bonding strength of raw materials. Inorganic gelling materials such as binders such as cement and water glass form chemical bonds during the firing process, firmly binding the raw material particles together, thereby improving the overall strength of the product. It should be emphasized that the amount of reinforcing agents and binders added must be strictly controlled. Excessive amounts may lead to a decrease in product performance or cause other adverse effects.
Read More -
How to improve the thermal insulation performance of insulating refractory bricks
In today's industrial field, the thermal insulation performance of insulating refractory bricks is of vital importance to improve energy efficiency and reduce production costs. Dongtai Hongda is committed to providing customers with high-performance insulating refractory brick products by relying on its continuous innovation in raw material selection, production process and molding technology. Optimize raw material selection and ratioThe selection and proportion of raw materials are key factors in improving the thermal insulation performance of insulating refractory bricks. Dongtai Hongda adheres to high standards and uses high purity refractory raw materials, including high quality silica and high alumina clay. These raw materials not only have excellent bonding properties, plasticity and firing shrinkage, but also have sufficient refractoriness. After strict raw material screening and scientific ratio design, the company's products have been significantly improved in thermal insulation performance and overall strength. In addition, Dongtai Hongda Company actively explores the application of new raw materials, such as expanded perlite and iron oxide powder. The introduction of these new materials not only improves the thermal insulation effect of the product, but also enhances its high temperature resistance, providing customers with more competitive product choices. Innovative production process and molding technologyIn the production process of insulating refractory bricks, innovation in process and molding technology is also crucial to improving product performance. Dongtai Hongda Company has introduced advanced automatic batching and molding production lines, which ensure the uniformity and density of the internal structure of the product through precise batching and fine molding technology. In addition, the company also adopts advanced firing technologies such as high-temperature tunnel kilns and shuttle kilns to ensure the formation of a more stable insulation layer inside the product by precisely controlling the firing temperature and insulation time. The application of this technology not only improves the thermal insulation performance of the product, but also provides a guarantee for the long-term stability of the product. Application of plasticizers and combustible additivesIn order to further improve the thermal insulation performance of insulating refractory bricks, Dongtai Hongda Company implemented the strategy of adding plasticizers and combustible additives. Plasticizers, such as inorganic or organic substances such as bentonite, significantly improve the plasticity and molding properties of raw materials, making the product denser during the firing process and effectively reducing the transfer of heat. At the same time, adding combustible materials can form more pore structures during the firing process. These pores effectively block the heat transfer path and further enhance the insulation effect. However, it is worth noting that the particle size and shape of the combustible additives have an important influence on the final thermal insulation performance, so strict control is required during selection and proportioning.
Read More -
What should be paid attention to during the production of insulating refractory bricks
In today's high-temperature industrial environment, the quality of insulating refractory bricks directly affects the safety and work efficiency of equipment. Dongtai Hongda always adheres to the principle of "quality first" and ensures the excellent performance of its insulating refractory bricks in various applications through rigorous raw material selection, precise proportioning and mixing process, scientific molding and drying treatment, and strict firing and cooling process. Raw material selection and quality controlDongtai Hongda's insulating refractory bricks mainly use high-purity alumina (Al₂O₃) and silicate (SiO₂) and other mineral raw materials. The company has established long-term cooperative relations with well-known domestic and foreign mining companies to ensure the purity and stability of the raw materials used. In order to ensure product quality, Dongtai Hongda has implemented a strict raw material inspection system, and conducts comprehensive chemical composition analysis and physical property tests on each batch of raw materials to ensure that they meet production standards. This series of measures not only improves the reliability of the product, but also provides customers with higher safety guarantees. Raw material proportioning and mixing processThe proportioning and mixing process of raw materials are crucial to the final performance of insulating refractory bricks. Dongtai Hongda uses an advanced computer batching system that can accurately control the ratio of various raw materials to ensure the stability of the chemical composition of the product. During the mixing process, efficient mixing equipment is used to reasonably adjust the stirring time and intensity to ensure that the raw materials are fully and evenly mixed. This process lays a solid foundation for subsequent molding and firing, ensuring that the final product reaches the industry-leading level in all performance indicators. Molding and Drying ProcessMolding is a key link in the production of insulating refractory bricks. Dongtai Hongda has introduced advanced technologies such as isostatic pressing and vibration molding to ensure the dimensional accuracy and shape stability of the products. During the molding process, the company strictly controls the temperature, humidity, molding pressure and time of the mold to prevent cracks and defects inside the product. The molded product needs to be finely dried. Dongtai Hongda adopts a gradually increasing drying process to effectively avoid product cracking caused by thermal shock and ensure the stability of the product in subsequent processes. Firing and Cooling ProcessFiring is a decisive step in the production process of insulating refractory bricks. Dongtai Hongda uses high-temperature tunnel kilns for firing, precisely controlling the firing temperature and holding time, so that the crystal structure inside the product is fully developed and a dense microstructure is formed, thereby significantly improving the thermal resistance and mechanical strength of the product. To ensure the stability of the firing process, the company is equipped with an advanced kiln control system to monitor the temperature and atmosphere changes in the kiln in real time to cope with various possible variables. The fired product needs to be slowly cooled to prevent internal stress caused by rapid cooling, thereby effectively reducing the risk of cracking or deformation of the product.
Read More -
How to improve the high thermal resistance performance of insulating refractory bricks
In high temperature environments, the performance of insulating refractory bricks is directly related to the safety and efficiency of industrial equipment. Dongtai Hongda knows this very well, so it is committed to providing insulating refractory bricks with high thermal resistance and high stability to meet the needs of different industries. Strict control of high-quality raw materialsThe selection of raw materials is a key factor in determining the performance of insulating refractory bricks. Dongtai Hongda uses high-quality raw materials such as high-purity alumina (Al₂O₃) and silicate (SiO₂). These materials not only have excellent thermal stability and low thermal conductivity, but also have good chemical stability, forming the basis for high thermal resistance. . Through scientific proportioning and mixing processes, it is ensured that the chemical reaction between the raw materials is fully carried out, forming a dense and stable microstructure, thereby significantly improving the overall thermal resistance performance of the material. Advanced structural designThe thermal insulation effect of insulating refractory bricks is closely related to its structural design. Dongtai Hongda adopts a multi-layer composite structure design, combining different materials and thicknesses to form a gradient thermal resistance, which effectively slows down the speed of heat transfer. At the same time, with the help of advanced foam technology and pore control technology, a uniformly distributed pore structure is formed inside, further improving the thermal insulation performance. This innovative structural design not only improves the thermal insulation effect of the insulating refractory bricks, but also enhances its thermal shock resistance, allowing it to maintain higher stability and reliability in high temperature environments. Innovative production processIn order to ensure the excellent quality of insulating refractory bricks, Dongtai Hongda has introduced automated and intelligent production equipment in the production process, including automatic batching systems, high-precision molding equipment, and high-temperature tunnel kilns. These advanced equipment ensure the precise manufacturing and stable quality of products. In addition, Dongtai Hongda also uses advanced heat treatment technology to optimize the crystal structure inside the insulating refractory bricks by accurately controlling the firing temperature and holding time, significantly improving the thermal resistance and mechanical strength of the material. Strict quality management systemDongtai Hongda is committed to maintaining high standards of quality management in every production link. From the procurement of raw materials to the delivery of finished products, every step has undergone strict quality testing and monitoring to ensure that each insulating refractory brick meets excellent quality standards. Our quality management system not only improves production efficiency, but also provides customers with reliable product guarantees.
Read More -
Influence of material design on thermal shock resistance of monolithic refractories
In high-temperature industrial applications, monolithic refractories play a vital role. This type of material not only has to withstand extremely high temperatures, but also must maintain structural integrity and performance stability during drastic temperature changes, especially in terms of thermal shock resistance. Material design is a key link in improving the thermal shock resistance of unshaped refractory materials. Its impact is far-reaching and complex, involving many aspects. First of all, the selection of ingredients is the basis of material design and directly affects the thermal shock resistance of monomorphous refractory materials. Aluminum oxide (Al2O3) has become one of the main components of amorphous refractory materials due to its high melting point, high hardness and excellent chemical stability. Research shows that adjusting the content and crystal form of Al2O3 can significantly affect the thermal expansion coefficient, thermal conductivity and elastic modulus of the material, thereby directly affecting its thermal shock resistance. In addition, the selection of raw materials such as silicon and magnesia also needs to be comprehensively considered based on specific application scenarios to achieve the best thermal shock resistance effect. The control of microstructure is one of the key factors that determine material properties. For unshaped refractory materials, microstructural characteristics such as grain size, porosity and pore distribution have an important impact on their thermal shock resistance. By optimizing the sintering process, such as adjusting the sintering temperature, holding time and atmosphere conditions, the growth of grains can be effectively controlled, forming a uniform and fine grain structure, reducing internal defects, thereby improving the toughness and crack resistance of the material. At the same time, an appropriate amount of porosity can alleviate thermal stress, because the pores can serve as channels for stress release and reduce the concentration of thermal stress caused by temperature changes. The introduction of additives can also significantly improve the thermal shock resistance of monolithic refractory materials. For example, nanoparticles, due to their high specific surface area and activity, can form nanoscale interface structures in materials, thereby enhancing the overall strength of the material. Ceramic fiber can improve the toughness of the material and reduce the damage to the material caused by thermal stress. In addition, some special additives, such as zirconium oxide (ZrO2), due to their phase change toughening effect, can undergo phase change at high temperatures and absorb thermal stress, thereby further improving the thermal shock resistance of the material. Composite material design is another effective way to improve the thermal shock resistance of unshaped refractory materials. By carefully selecting the materials of the matrix and reinforcement to achieve a good match of thermal expansion coefficients, the thermal stress at the interface can be effectively reduced and the thermal shock resistance of the composite material enhanced. For example, combining aluminum oxide with zirconia can form a composite material with excellent thermal shock resistance. At the same time, the use of fiber reinforcement technology, such as adding steel fibers or refractory fibers to refractory castables, can significantly improve the toughness and crack resistance of the material, and further enhance its thermal shock resistance.
Read More -
What are the steps of monolithic refractories casting
In the refractory industry, monolithic refractories have attracted wide attention due to their excellent fire resistance, corrosion resistance and flexibility. Casting, as a major molding process for monolithic refractories, is widely used in various high-temperature industrial equipment and has become an important way to achieve high-performance refractories. Raw material preparationThe first step in casting is the preparation of raw materials, which involves the reasonable ratio of refractory aggregates, binders and water. Refractory aggregates are granular substances that constitute the main body of refractory materials, and common ones include alumina, magnesium oxide and silica. Binders are key materials that bind refractory aggregate particles together, usually including water glass, phosphates and aluminates. The addition of water is intended to adjust the fluidity and viscosity of the slurry to ensure the smooth progress of the casting process.In the raw material preparation stage, it is crucial to strictly control the proportion and particle size distribution of each component to ensure the performance and quality of the final product. In addition, the drying and pretreatment of raw materials are also important links that cannot be ignored to avoid bubbles and cracks during the casting process and ensure the integrity and durability of the product. Slurry preparationAfter mixing the prepared raw materials in a specific proportion, add an appropriate amount of water for stirring to form a flowable slurry. During the slurry preparation process, the control of stirring speed and time is crucial to ensure that the components are evenly mixed. In addition, the viscosity and fluidity of the slurry should be adjusted according to the specific application scenario to meet different construction requirements.In the slurry preparation process, it is equally important to remove bubbles in the slurry. The presence of bubbles will not only affect the density and strength of the final product, but may even cause cracks and fall off during use. Therefore, effective methods such as vacuum degassing or ultrasonic degassing can significantly improve the quality of the slurry. Mold preparation and castingThe mold plays a vital role in the casting process. According to the shape and size of the required product, select a suitable mold for preparation. The material and precision of the mold directly affect the quality and performance of the final product.After the mold is prepared, carefully pour the prepared slurry into the mold. During the casting process, the flow rate and flow rate of the slurry need to be controlled to avoid bubbles and cracks. At the same time, ensure the sealing of the mold to prevent the slurry from leaking during the casting process. Vibration and curingTo further improve the density and strength of the product, the mold needs to be vibrated after pouring. Vibration can make the particles in the slurry more closely arranged, thereby reducing porosity and improving the density of the product.After the vibration treatment is completed, the mold is moved to the curing room for curing. The purpose of curing is to gradually evaporate and solidify the water in the slurry to form a solid refractory layer. The curing time and temperature need to be adjusted accordingly according to the specific product type and performance requirements to ensure the final quality of the product. Demolding and subsequent processingAfter curing, open the mold and carefully remove the product. During the demoulding process, be careful to avoid damage to the product. After demoulding, the product usually requires further post-processing, including surface finishing and quality inspection to ensure that it meets the expected use standards and technical requirements.
Read More -
What are the molding methods of monolithic refractories
In the refractory industry, monolithic refractories have become the core material for many industrial applications due to their excellent refractory performance, flexible construction methods and wide applicability. The molding methods of this type of material are diverse, and a variety of advanced molding technologies are used for different application scenarios and performance requirements.Casting is one of the most commonly used molding methods for monolithic refractories. This process pours the pre-mixed refractory slurry into the mold, and demoulds it after solidification to obtain the refractory product of the desired shape. This method is particularly suitable for manufacturing refractory products with complex shapes and high dimensional accuracy requirements. During the pouring process, the preparation of the slurry is crucial. The slurry is required to have excellent fluidity and stability to ensure that the mold can be evenly filled during pouring. In addition, the curing time of the slurry and its environmental conditions need to be strictly controlled to ensure that the performance of the final product meets the expected standards.Spraying molding, as another efficient molding method for monolithic refractory materials, is particularly suitable for the repair and reinforcement of existing refractory structures. This process uses high-pressure spraying to evenly spray the refractory slurry on the part to be repaired, thereby forming a continuous refractory layer. Spray forming has significant advantages such as fast construction speed, high flexibility and strong adaptability. It can accurately spray in complex shapes and hard-to-reach areas to ensure the uniformity and continuity of the refractory layer. In addition, this method allows the spray thickness and the type of refractory material to be adjusted according to actual needs to meet different performance requirements.Vibration forming is a forming method that uses mechanical vibration to closely arrange and combine refractory particles. Under the action of vibration, the refractory particles are subjected to uniform impact force, thereby achieving close stacking and uniform distribution. This method is particularly suitable for manufacturing refractory products with simple shapes and large sizes. Vibration forming has the advantages of high production efficiency, high product density and good dimensional stability. By adjusting the vibration frequency and amplitude, the density and internal structure of refractory products can be accurately controlled to meet different performance requirements.Pressing forming is a process that presses refractory particles into shape through mechanical pressure. It is suitable for manufacturing refractory products with regular shapes and high dimensional accuracy requirements. During the pressing process, the refractory particles are subjected to uniform pressure, thereby achieving close arrangement and combination. The advantages of this method are regular product shapes, high dimensional accuracy and uniform density. However, press molding has high requirements on molds and is not suitable for the manufacture of refractory products with complex shapes or large sizes.
Read More -
What are the precautions for transporting insulating refractory bricks
Insulating refractory bricks are indispensable key materials in the high-temperature industrial field. The safety, stability and efficiency of their transportation process directly affect the final application effect. Therefore, from a professional perspective, it is crucial to ensure the integrity and safety of insulating refractory bricks during transportation. Packaging requirementsBefore transporting insulating refractory bricks, they must be carefully packaged to prevent damage caused by collision, extrusion or friction during transportation. The packaging materials should be wooden pallets, wooden boxes or cartons with high strength and good toughness. These materials can effectively resist external force impact during transportation. For heavier refractory bricks, it is recommended to use pallet transportation to reduce the weight and volume of a single package, which is convenient for handling and loading and unloading. During the packaging process, it should be ensured that there is sufficient padding between the refractory bricks and the packaging materials, such as foam or bubble film, to reduce the impact of vibration and impact on the product during transportation. Transportation tool selectionChoosing the right transportation tool is crucial to the safe transportation of insulating refractory bricks. Commonly used transportation tools include trucks and containers. Trucks should have good shock absorption systems and rain protection facilities to ensure that refractory bricks are not damp and damaged during transportation. Containers provide higher security and stability and are suitable for long-distance or cross-border transportation. When choosing a means of transportation, it is also necessary to comprehensively consider factors such as transportation distance, road conditions and weather to ensure the safety and efficiency of the transportation process. Loading and unloading methodsWhen loading and unloading insulating refractory bricks, be sure to handle them with care, and rolling and throwing are strictly prohibited. Special lifting equipment such as cranes or forklifts should be used to ensure a smooth loading process and avoid sliding or tilting of refractory bricks. During loading and unloading, it is necessary to carefully cut off the iron sheets or ropes around the refractory bricks, and avoid using hard objects such as steel chisels to operate to prevent the refractory bricks from being squeezed and damaged. At the same time, loading and unloading personnel should receive professional training and have an in-depth understanding of the characteristics and loading and unloading requirements of insulating refractory bricks to ensure standardized and safe operation. Monitoring and management during transportationDuring transportation, insulating refractory bricks must be monitored and managed throughout the process. First, a detailed transportation record system should be established to record transportation time, route, vehicle information and driver information so that they can be quickly tracked and located when problems arise. Secondly, transportation vehicles should be inspected and maintained regularly to ensure that they are in good working condition. In addition, it is necessary to pay close attention to weather changes. If there are severe weather conditions, the transportation plan should be adjusted in time to ensure the safe transportation of refractory bricks. Emergency measuresDuring the transportation process, various emergencies may occur, such as traffic accidents or sudden weather changes. Therefore, comprehensive emergency measures should be formulated to deal with possible emergencies. Emergency measures should include accident reporting procedures, rescue contact information and emergency plans. After the accident occurs, the emergency plan should be quickly activated and necessary rescue measures should be taken to reduce losses and impacts.
Read More
-
Jiandong Industrial Park, Shiyan Town, Dongtai City, Jiangsu Province, China
-
+86-0515-85180478
-
-
+86 153 9674 6158
+86 180 2147 5668 -
+86-0515-85540509
