News- Dongtai Hongda Heat Resistant Material Co., Ltd.

By HDNRCL · 28/05/2024
Fire Safety First: Insulation Materials with Flame-Retardant Properties

Fire safety is a paramount concern in any construction project, whether it's a residential home, commercial building, or industrial facility. Insulation materials play a crucial role in ensuring that structures are adequately protected against fire hazards. In recent years, there has been a growing emphasis on utilizing insulation materials with flame-retardant properties to enhance fire safety standards and minimize the risk of fire-related incidents.Insulation Materials are specifically engineered to inhibit the spread of flames and reduce the rate of combustion when exposed to fire. These materials are designed to withstand high temperatures and prevent the rapid spread of flames throughout a building, thereby providing valuable time for occupants to evacuate safely and for firefighters to contain the blaze.One of the most common types of Insulation Materials is mineral wool, also known as rock wool or slag wool. Mineral wool is derived from natural minerals such as volcanic rock or blast furnace slag and is renowned for its exceptional fire resistance properties. It possesses a high melting point and does not contribute to the spread of fire, making it an ideal choice for applications where fire safety is a primary concern.Another popular choice for Insulation Material is fiberglass. Fiberglass insulation is composed of fine glass fibers that are woven together to create a dense matting. These fibers are treated with flame-retardant chemicals during the manufacturing process to enhance their fire resistance. Fiberglass insulation effectively slows down the progress of flames and helps prevent fire from spreading rapidly within a building.Cellulose insulation is another option that is gaining popularity for its flame-retardant properties. Cellulose insulation is made from recycled paper fibers that are treated with borate compounds, which act as natural flame retardants. Borates are highly effective at inhibiting the combustion process by interfering with the chemical reactions that occur when materials are exposed to heat and oxygen. As a result, cellulose insulation provides excellent fire protection while also offering superior thermal performance.In addition to these traditional insulation materials, there are also innovative flame-retardant options available in the market. For example, intumescent coatings are applied to surfaces to create a protective barrier that expands when exposed to heat, forming a thick, insulating char layer that helps to suppress flames. These coatings can be applied to a variety of substrates, including wood, steel, and concrete, making them versatile solutions for enhancing fire safety in different types of buildings.When selecting insulation materials with flame-retardant properties, it's essential to consider not only their fire resistance performance but also their overall durability, thermal efficiency, and environmental impact. While flame-retardant materials are designed to mitigate the risk of fire, they should also meet stringent safety standards and regulatory requirements to ensure their effectiveness in real-world applications.Proper installation and maintenance are crucial factors in maximizing the fire safety benefits of flame-retardant insulation materials. Insulation should be installed according to manufacturer guidelines and building codes to ensure optimal performance. Regular inspections and maintenance checks should also be conducted to identify any signs of damage or degradation that could compromise the fire resistance of the insulation.Calcium Silicon PlateApplication: Silicon calcium board is a new type of board made mainly of silicon and calcium materials through processes such as pulping, forming, steam curing, drying, sanding, and post-processing. The product has the advantages of being lightweight, high strength, fire insulation, and good processability, and can be widely used in fire partition walls, ceiling panels, air ducts, partition boards for various ships, and fire doors in high-rise and public buildings.
Read More
By HDNRCL · 21/05/2024
Shielding Against Adversity: Monolithic Refractories' Role in Disaster Recovery

In times of disaster, whether natural or man-made, the resilience of infrastructure is put to the ultimate test. Among the unsung heroes in disaster recovery efforts are monolithic refractories, whose crucial role often goes unnoticed by the general public. These specialized materials play a pivotal role in shielding critical industrial structures from the destructive forces unleashed during calamities such as fires, earthquakes, and chemical spills. From protecting the integrity of furnaces in industrial facilities to reinforcing crucial infrastructure in disaster-prone areas, monolithic refractories serve as a frontline defense against adversity.One of the most significant challenges in disaster recovery is mitigating the impact of fires, which can ravage industrial facilities, residential buildings, and critical infrastructure within moments. Monolithic refractories excel in this arena due to their exceptional heat resistance properties. These materials are engineered to withstand extreme temperatures, ensuring that furnaces, kilns, and other heat-intensive equipment remain operational even in the face of infernos. By containing and insulating heat, monolithic refractories prevent the spread of fires, thereby minimizing damage and facilitating faster recovery efforts.In the aftermath of earthquakes, structural integrity becomes a paramount concern. Buildings, bridges, and other infrastructure must withstand tremors and aftershocks to prevent catastrophic collapses. Monolithic refractories play a crucial role in reinforcing concrete structures, providing added strength and stability. By incorporating these materials into construction projects, engineers can enhance the seismic resilience of buildings, ensuring that they remain standing even in the event of a major earthquake. Additionally, monolithic refractories can be used to repair and reinforce damaged structures, expediting the restoration process in affected areas.Chemical spills pose another significant threat during disasters, particularly in industrial settings where hazardous materials are present. Monolithic refractories offer a formidable defense against chemical corrosion, safeguarding equipment and containment vessels from corrosive substances. These materials are resistant to acids, alkalis, and other corrosive agents, providing a protective barrier that prevents leaks and contamination. In the event of a chemical spill, monolithic refractories help contain the hazardous material, preventing environmental damage and minimizing the risk to human health.The versatility of monolithic refractories extends beyond traditional disaster scenarios, encompassing emerging challenges such as climate change and environmental degradation. As global temperatures rise and weather patterns become more erratic, the frequency and intensity of natural disasters are expected to increase. Monolithic refractories will play a vital role in adapting to these changes, providing robust solutions for resilient infrastructure that can withstand the challenges of a rapidly changing world.In addition to their practical applications in disaster recovery, monolithic refractories contribute to broader efforts aimed at building sustainable and resilient communities. By incorporating these materials into infrastructure projects, engineers can design buildings and facilities that are not only more durable but also more energy-efficient. The thermal insulation properties of monolithic refractories reduce heat loss, lowering energy consumption and greenhouse gas emissions. Furthermore, by prolonging the lifespan of equipment and structures, monolithic refractories help reduce the environmental impact of construction and maintenance activities.Indefinite Refractory CastablesOur company's indefinite refractory castables are manufactured through the mechanism of cohesion, polymerization, flocculation, and ceramic with high-purity and high-quality refractory materials, It has convenient construction, great integrity, resistance, wear resistance, ling service life, and other features.
Read More
By HDNRCL · 14/05/2024
Insulating Refractory Bricks: The Backbone of High-Performance Kilns

Insulating refractory bricks serve as the backbone of high-performance kilns, playing a pivotal role in maintaining the efficiency and durability of these critical industrial structures. Kilns are essential in various industries, including ceramics, metallurgy, and manufacturing, where they are used for processes such as drying, firing, and calcination. These processes involve high temperatures, harsh conditions, and often prolonged operation, demanding materials that can withstand such extreme environments. Insulating refractory bricks rise to this challenge, offering a combination of thermal insulation, mechanical strength, and resistance to thermal shock.One of the primary functions of insulating refractory bricks in high-performance kilns is to provide thermal insulation. Kilns operate at elevated temperatures, often exceeding several hundred or even thousands of degrees Celsius. Without proper insulation, significant heat loss would occur, leading to increased energy consumption and reduced efficiency. Insulating refractory bricks are engineered to have low thermal conductivity, meaning they minimize the transfer of heat from the interior of the kiln to the surrounding environment. This insulation helps maintain high temperatures within the kiln, promoting efficient and uniform heating of materials while conserving energy.Insulating refractory bricks contribute to the structural integrity of high-performance kilns. These bricks are designed to withstand mechanical stresses, thermal expansion, and other forces that kilns experience during operation. The ability of insulating refractory bricks to withstand such conditions ensures the stability and longevity of the kiln structure, reducing the need for frequent maintenance and repairs. By serving as a reliable backbone, these bricks enable kilns to operate consistently and safely, meeting the demands of industrial production processes.In addition to thermal insulation and structural support, insulating refractory bricks offer resistance to thermal shock. Kilns are subjected to rapid changes in temperature, especially during startup, shutdown, and process fluctuations. These temperature variations can induce stress within the kiln lining, potentially leading to cracking and failure if not properly addressed. Insulating refractory bricks are engineered to withstand thermal shock, meaning they can endure sudden changes in temperature without compromising their integrity. This resistance to thermal shock enhances the durability and reliability of high-performance kilns, ensuring uninterrupted operation and minimizing downtime.Insulating refractory bricks play a crucial role in optimizing the performance of high-performance kilns. By minimizing heat loss, providing structural support, and resisting thermal shock, these bricks contribute to the overall efficiency of kiln operations. Efficient kiln operation translates to reduced energy consumption, lower production costs, and improved product quality. Whether in the ceramics industry for firing pottery or in the metallurgical industry for smelting metals, the performance of kilns heavily relies on the quality and functionality of their insulating refractory bricks.HJM Suspended Roof BrickApplication: Various industrial kilns, such as ceiling, wall, and lining materials of roller hearth furnaces, annular furnaces, bell furnaces, heating furnaces, cracking furnaces, thermal furnaces, shuttle kilns, tunnel kilns, roller kilns, ammonia kilns, and enamel kilns.
Read More
By HDNRCL · 08/05/2024
Use Temperature and Iocation of Refractory Bricks

As a shaped refractory material, refractory bricks have diversified products due to different parameters and scope of use.Refractory bricks have high strength, simple construction, wide range of uses, and easy material selection. They are suitable for the construction of various industrial furnaces and kilns. Their uses and operating temperatures are different. The following points are summarized from many years of experience in the industry. I hope they can help Everyone helps.1.The physical and chemical indicators, dimensional allowable deviations and cross-section cracks of the ordinary refractory clay bricks should comply with the specifications. Ordinary refractory clay bricks are used as refractory masonry in general furnaces. The operating temperature of lining materials, furnace walls, furnace bottoms, flues, etc. is below 1250°C. The combustion chamber part is allowed to be used above 1400℃.2.The physical and chemical indicators, product dimensions, allowable deviations, etc. of high alumina bricks should comply with the specifications. High alumina bricks are used in masonry, burner bricks and masonry with special requirements in areas with high temperature resistance and wear resistance in general furnaces or in masonry with heavy loads. The dome in the high-temperature area of the combustion chamber is allowed to use a temperature of 1300 to 1650°C.3. The physical and chemical indicators of lightweight clay bricks, the allowable deviation of product dimensions, and the cross-sectional requirements of appearance products should comply with the specifications. Lightweight refractory clay bricks are used as kiln linings that are not corroded by high-temperature slag and corrosive gases. Depending on the capacity, the operating temperature is between 1150 and 1400°C.4. The physical and chemical indicators of lightweight high-alumina bricks and the allowable deviation of external dimensions should comply with the specifications. It is used for heat-resistant linings with working temperatures below 1350°C. It can also be used for masonry that is not corroded and eroded by high-temperature molten materials and can be in direct contact with flames.5. General corundum bricks are suitable for fire surface linings of heavy oil gasifiers with working pressures below 3MPa, important parts of salty wastewater incinerator linings, and radiant burner bricks working at high temperatures. Generally, the service temperature of corundum bricks is below 1600~1670℃.6. Low silicon fused corundum is suitable for occasions with strong reducing atmosphere, high hydrogen content and high temperature water vapor. Such as large-scale ammonia synthesis equipment, the gas collecting pipe lining of the first-stage reformer, the brick lining of the second-stage reformer, and the high-temperature furnace lining. The physical and chemical indicators and dimensional allowable deviations of low silicon fused corundum bricks should comply with the specifications. The operating temperature of low silicon fused corundum is below 1600℃~1670℃.7. Lightweight alumina products (such as lightweight corundum bricks) are used as heat-resistant and insulating linings in high-temperature furnaces. Linings corroded by high-temperature and high-pressure water vapor are generally used in non-fire surface linings. The use temperature of alumina products is below 1400°C.8. Silicon carbide refractory bricks have good thermal conductivity, good thermal stability, can resist reducing atmospheres, and have high strength. They are often used as heat-resistant and wear-resistant linings, and need to have good thermal stability, thermal conductivity and resistance to reduction. In the case of sexual atmosphere, the use temperature of silicon carbide refractory products is below 1400~1600℃.
Read More
By HDNRCL · 07/05/2024
Designing for Endurance: Engineering Monolithic Refractories for Longevity

The journey begins with a deep understanding of the operating conditions these materials will encounter. Engineers meticulously analyze factors such as temperature fluctuations, chemical exposure, mechanical stress, and thermal shock. This comprehensive assessment forms the basis for designing refractory compositions tailored to specific applications, ensuring optimal performance and longevity.One of the primary challenges in engineering monolithic refractories for longevity lies in achieving a balance between strength and flexibility. While these materials must withstand extreme temperatures and mechanical forces without failure, they must also possess the resilience to adapt to thermal expansion and contraction. Achieving this delicate equilibrium requires precise formulation and testing, often involving advanced computational modeling and experimental validation.In the quest for durability, the selection of raw materials plays a pivotal role. Engineers scrutinize various minerals, aggregates, and binders for their thermal stability, chemical inertness, and mechanical strength. Each component contributes to the overall performance and longevity of the refractory material, with careful attention paid to their compatibility and interactions under operating conditions.The engineering process extends beyond material selection to encompass the design of manufacturing processes optimized for consistency and quality. Advanced mixing techniques, such as wet and dry blending, are employed to achieve homogeneous distributions of components and eliminate potential weak points in the final product. Precision casting or gunning methods ensure proper placement and compaction, minimizing porosity and enhancing mechanical integrity.Quality control measures are integrated throughout the production chain to safeguard against defects and deviations from specifications. Rigorous testing protocols, including thermal conductivity measurements, abrasion resistance tests, and thermal cycling experiments, validate the performance of monolithic refractories under simulated service conditions. Any discrepancies are promptly addressed through iterative refinement of formulations and manufacturing techniques.The pursuit of longevity also encompasses ongoing research and development efforts aimed at pushing the boundaries of refractory technology. Innovations in nanomaterials, additive manufacturing, and composite structures offer promising avenues for enhancing the durability and performance of monolithic refractories. By leveraging cutting-edge advancements, engineers strive to anticipate future challenges and proactively design solutions capable of meeting the evolving demands of industry.Sustainability considerations are increasingly factored into the engineering of monolithic refractories for longevity. Efforts to minimize environmental impact, such as reducing energy consumption during manufacturing and exploring alternative raw materials with lower carbon footprints, align with broader initiatives for sustainable development. By embracing eco-friendly practices, refractory manufacturers demonstrate their commitment to responsible stewardship of natural resources.Through meticulous design, meticulous manufacturing, and ongoing research, engineers strive to ensure that monolithic refractories not only withstand the test of time but also enable sustainable progress across diverse industries.High-temperature Mortar, High-temperature BinderProperty: High bonding strength of binder, strong binding force under high temperature, and no pollution to the environment, great integrity of the lining for the high-temperature plaster masonry, and strong tightness.
Read More
By HDNRCL · 30/04/2024
Insulating Refractory Bricks: Enhancing Safety in High-Temperature Environments

Insulating refractory bricks play a pivotal role in enhancing safety within high-temperature environments across various industries. These specialized bricks are engineered to withstand extreme heat while providing crucial insulation to prevent heat loss and minimize the risk of thermal accidents. From industrial furnaces to kilns and incinerators, the use of insulating refractory bricks is essential for maintaining operational safety and efficiency.One of the primary functions of insulating refractory bricks is to create a protective barrier against the intense heat generated within industrial processes. These bricks are designed with high thermal resistance properties, allowing them to withstand temperatures ranging from several hundred to several thousand degrees Celsius. By effectively containing heat within the designated equipment or structure, insulating refractory bricks help prevent overheating and minimize the risk of equipment failure or structural damage.In addition to their thermal insulation properties, insulating refractory bricks also contribute to overall workplace safety by reducing the risk of heat-related accidents. In environments where workers are exposed to extreme temperatures, such as foundries or glass manufacturing facilities, insulating refractory bricks help maintain a safer working environment by minimizing heat transfer to surrounding areas. This not only protects workers from direct exposure to high temperatures but also reduces the likelihood of heat stress-related injuries and illnesses.Insulating refractory bricks are crucial for preventing heat loss in industrial processes, thereby improving energy efficiency and reducing operational costs. By minimizing heat transfer to the surrounding environment, these bricks help maintain consistent temperatures within furnaces, kilns, and other heat-intensive equipment. This not only enhances process control and product quality but also reduces the energy required to maintain optimal operating conditions, leading to significant cost savings for businesses.The design and composition of insulating refractory bricks are carefully engineered to meet the specific requirements of different applications and industries. These bricks are typically made from a combination of high-quality refractory materials, such as alumina, silica, and various lightweight aggregates, which are chosen for their thermal stability, strength, and insulating properties. The precise selection and proportioning of these materials are essential to ensure that insulating refractory bricks can withstand the extreme temperatures and thermal stresses encountered in high-temperature environments.Insulating refractory bricks are available in a variety of shapes, sizes, and configurations to accommodate the diverse needs of different industries and applications. Whether used for lining the walls of a furnace, constructing a kiln roof, or insulating a piping system, these bricks can be tailored to fit specific dimensions and thermal requirements. This flexibility allows engineers and designers to optimize the performance and efficiency of thermal processing equipment while maintaining a strong emphasis on safety and reliability.Heavy High Aluminum BrickProduct Description: Select high bauxite clinker and the refractory clay to compound in multi-level and to mold, at last, burn under high temperature. The heavy high aluminum brick has three marks according to the content of the alumina, make sure the aluminum content and high-temperature performance of the heavy high aluminum brick by adjusting the grades of the high bauxite and percentage of clay to satisfy different service conditions and requirements.
Read More
By HDNRCL · 23/04/2024
Chemical Resistance of Monolithic Refractories: Protecting Against Corrosive Environments

Chemical resistance is a critical characteristic of monolithic refractories, playing a pivotal role in protecting industrial equipment and structures against the deleterious effects of corrosive environments. In high-temperature applications such as in petrochemical, steelmaking, and incineration industries, materials are subjected to aggressive chemical reactions that can lead to degradation and failure over time. Monolithic refractories offer a robust defense against such corrosive forces, ensuring the longevity and reliability of industrial processes.Monolithic refractories are engineered to withstand a wide range of chemical attacks, including exposure to acids, alkalis, slag, and molten metals. This resistance is achieved through careful selection of raw materials and formulation techniques. Binders, aggregates, and additives are chosen for their ability to resist chemical dissolution and maintain structural integrity in hostile environments. For example, high-alumina and silicon carbide-based refractories exhibit excellent resistance to acidic and basic compounds, making them ideal choices for applications where corrosion is a concern.In corrosive environments, monolithic refractories act as a barrier between the aggressive chemicals and the underlying substrate, preventing erosion and material loss. One of the key challenges in designing chemically resistant monolithic refractories is balancing resistance with other performance criteria such as thermal conductivity, mechanical strength, and thermal shock resistance. While increasing chemical resistance often involves the incorporation of high-cost additives or complex formulations, manufacturers strive to optimize these properties without compromising overall performance or cost-effectiveness.The protection provided by monolithic refractories against corrosive environments is crucial for the efficiency and safety of industrial processes. In applications such as sulfur recovery units, waste incinerators, and chemical reactors, where aggressive chemical reactions occur at elevated temperatures, the integrity of refractory linings is essential for preventing leaks, reducing downtime, and ensuring regulatory compliance. The chemical resistance of monolithic refractories is a critical factor in protecting industrial equipment and structures from corrosion in aggressive environments. Through careful material selection and formulation, these refractories offer robust defense against acids, alkalis, slag, and molten metals, ensuring the longevity and reliability of industrial processes. Low-cement PrefabApplication: Mainly for heating furnaces, annealing furnace trolleys, and other thermal equipment.Property: High compression strength, greatly elevated temperature property, and convenient masonry.
Read More
By HDNRCL · 18/04/2024
2024 Ceramic Industry Exhibition in Munich, Germany

Basic information of the exhibitionExhibition name: 2024 Munich Ceramics and Powder Metallurgy Machinery, Equipment, Processing and Raw Materials Expo/ceramitec 2024Exhibition Date: April 09–12, 2024Exhibition location: Munich Exhibition Center, GermanyFirst year: 1979Chinese partner: China Council for the Promotion of International Trade Building Materials Industry Branch CCPIT-BM2. Exhibition introduction●ceramitec is the world's leading exhibition for the ceramic industry. At the exhibition you can meet business partners, market leaders and decision-makersBy. You can also develop new clients and stay abreast of the latest developments in the market. ceramitec and exhibitors jointly present the entire value chain of the industry.Helping you achieve business success. Global innovation from industry to R&D covering heavy clays, fine and refractory ceramics, raw materials, technical ceramicsand powder metallurgy fields.●ceramitec 2018 was a huge success: 633 exhibitors from 38 countries and regions (64% of them from overseas) andMore than 15,500 professional visitors from 95 countries and regions (54% of which are from overseas).●ceramitec 2022 exceeds expectations: 356 exhibitors from 34 countries and regions despite COVID-19 restrictions on international travelExhibitors (63% of which were from overseas) participated in ceramitec 2022 Munich Ceramics Industry Exhibition in Germany. Meanwhile, from 84 countriesAbout 10,000 professional visitors from and around the world (58% of which are from overseas) visited the exhibition on site.3. Reasons for participating in the exhibitionScope of exhibits ●Meet market leaders from around the world;●Face-to-face communication with decision-makers;●Extensive product range helps obtain an overall overview of the market;●Acquire high-level professional knowledge provided by global industry insiders;●Build a network of scientists, manufacturers and users;●Participate in seminars and forums and be inspired;●Develop new synergies and explore future investment possibilities4.●Ceramic raw materials, additives, powders, production materials and auxiliary materials ●Refractory materials, kilns and equipment●Equipment, systems and devices for heavy clay soils●Machines, systems and equipment for fine and refractory ceramics ●Technical ceramics ●Powder metallurgy●Additive manufacturing in technical ceramics ●Research ●Media5. Ceramitec 2024 Exhibition Hall LayoutHall A4: Heavy clay ceramic machinery and equipment, logistics, analysis, research and development, education and training, media, associations, etc.Hall A5: raw materials, additives, powders, production materials and auxiliary materials, refractory materials, firing aids, kilns and equipment, energy solutions, etc.Hall A6: Technical ceramics, powder metallurgy, 3D printing, additives, advanced materials, composite materials, etc.6. Exhibition ContactChina Council for the Promotion of International Trade Building Materials Industry Branch CCPIT-BMContact person: Wei Jing 13501182531
Read More
By HDNRCL · 18/04/2024
High-quality Development Summary Conference

On April 17, 2024, our company, Dongtai Hongda Heat Resistant Material Co., Ltd. was fortunate to participate in the high-quality development summary conference held in Shiyan Town. At this grand meeting, our company won the Economic Development Contribution Award for its outstanding performance in the past year. Winning this award is not only a full recognition of our company's long-term contribution to the economic field, but also a tribute to the hard work of all our employees. In the past few years, our company has always adhered to a high-quality development strategy, taking innovation as its core, and actively expanded its business areas. In terms of industrial development, our company targets emerging industries, increases investment in research and development, and promotes industrial transformation and upgrading. By cooperating with well-known domestic and foreign companies, our company introduces advanced technology and continuously improves product competitiveness, contributing to the rapid development of my country's heat-resistant materials industry.In addition, our company also attaches great importance to corporate social responsibility and actively participates in public welfare undertakings. In the field of education, our company has established a special fund to fund education in poverty-stricken areas and cultivate more outstanding talents for the future of the motherland. In terms of environmental protection, our company has invested a lot of money in energy conservation and emission reduction, committed to achieving green development, and contributing to the protection of our planet.After years of hard work, our company has achieved remarkable results in economic and social benefits, and has made positive contributions to my country's economic development. At this high-quality development summary conference, our company won the Economic Development Contribution Award, which is not only an affirmation of our company's past achievements, but also an incentive for our company's future development.Standing at a new starting point, our company will continue to adhere to the high-quality development strategy, increase innovation, enhance the core competitiveness of the enterprise, and contribute more to the country's economic development. At the same time, our company will continue to actively fulfill its social responsibilities, give back to the society, and work together with all sectors of society to achieve the grand goal of building a modern socialist country in an all-round way and contribute to the Chinese dream of the great rejuvenation of the Chinese nation.
Read More
By HDNRCL · 16/04/2024
A strong shield in chemical environments: the way to stabilize insulating refractory bricks

Insulating Refractory Bricks have high stability in various chemical environments. This feature is particularly important in industrial applications. Its stability is mainly reflected in the following aspects:Acid and alkali resistance: Insulating refractory bricks are often composed of oxides, silicates and other compounds. These materials usually show good acid and alkali resistance. In chemical industry production, such as acid making, alkali making, etc., a large amount of acidic or alkaline waste liquid will be produced. These media are corrosive to many metal and non-metallic materials, but insulating refractory bricks can effectively resist this Corrosion, protecting the integrity and functionality of industrial equipment.Corrosion resistance: Insulating refractory bricks can maintain the stability of their structure under the dual effects of high temperature and chemical media. In the production of metallurgy, chemical industry and other fields, equipment is often corroded by high temperature, acidic, alkaline, and oxidizing media. However, insulating refractory bricks can effectively resist these erosions due to their special material composition and structural design. Ensure the stable operation of the equipment for a long time.Stable chemical structure: Insulating refractory bricks can maintain the stability of their chemical structure in high temperature environments and are not easily affected by chemical substances. This characteristic allows the insulating refractory bricks to withstand high temperatures and chemical erosion for a long time without obvious quality changes, ensuring the safe operation of the equipment.Oxidation resistance: Insulating refractory bricks have high oxidation resistance and can resist the erosion of oxidizing media. In high-temperature environments, many metal and non-metal materials are prone to oxidation reactions, and insulating refractory bricks can stably maintain the chemical state of their materials, effectively extending the service life of the equipment.Insulating refractory bricks have high stability in various chemical environments, which makes them an indispensable key material in industrial production. Its excellent chemical stability provides reliable protection for industrial equipment, prolongs the service life of equipment, reduces maintenance costs, thereby promoting safe and stable industrial production.Light Brick and Insulating Brick with High Strength and Low Heat ConductionApplication: For thermal insulation of various industry furnaces, such as the wall of ceramic tunnel kilns and insulation material of blast stoves.Property: Adopt high-quality raw materials and specific techniques; high compressive strength, uniform structure, light heavy, low price, and obvious energy conservation effect.
Read More
By HDNRCL · 09/04/2024
The key role of insulating materials: ensuring safe operation of circuits

In modern electrical engineering, the importance of insulating materials cannot be ignored. They are a key component in protecting circuits from risks such as current leakage and short circuits. Insulating materials effectively prevent the flow of electric current through a series of characteristics and performance, thereby ensuring the safe operation of circuits.1. High resistance performanceInsulating materials often have extremely high resistivities, which means they barely conduct electricity in an electric field. This high resistance enables the insulating material to effectively block the flow of electrical current, thereby preventing unintended current paths in the circuit, such as leakage or short circuits. This property is particularly important because the insulating material maintains its insulating properties even at high voltages, ensuring that the circuit will not malfunction or be damaged by the flow of electrical current.2. Excellent dielectric propertiesInsulating materials are often used as dielectrics, that is, they are stable in an electric field without breakdown. This property allows insulating materials to isolate electrical current in electrical equipment and prevent circuit shorts between different parts of the circuit. By providing a reliable electrical isolation layer, insulating materials effectively prevent current mixing and crossover in the circuit, thereby ensuring circuit stability and safety.3. Heat resistance and corrosion resistanceSince electrical equipment is often exposed to high temperatures or harsh working environments, insulation materials need to have good heat resistance and corrosion resistance. These characteristics ensure that the insulation material can still maintain its insulation performance under extreme conditions and will not fail due to temperature rise or chemical corrosion. The heat resistance and corrosion resistance of insulating materials enable electrical equipment to operate stably for a long time in harsh environments, thereby extending the service life of the equipment and improving its reliability.4. Mechanical strengthIn addition to electrical properties, insulating materials also need to have a certain mechanical strength to withstand mechanical damage from the external environment. During the manufacturing and installation process of electrical equipment, insulation materials may be physically impacted or squeezed, so they need to have a certain degree of compressive and tensile strength. This mechanical strength ensures that the insulating material is not easily damaged during use, thus ensuring the safe operation of the circuit.Insulating materials ensure the safe operation of circuits through their properties such as high electrical resistance, dielectric properties, heat and corrosion resistance, and mechanical strength. They not only prevent the flow of current, but also effectively isolate the electrical connections between different parts, preventing circuit short circuits and current leakage from occurring. Therefore, insulation materials play an indispensable role in electrical engineering, providing key guarantees for the reliability and safety of electrical equipment.Ceramic Fiber And Products The main material of ceramic fiber products is ceramic fiber, and such products are manufactured by wet process and dry-press process. With a uniform thickness, smooth surface, and great flexibility to be further cut or punched into a variety of products of varying dimensions, the 1600-type product uses a combination of polycrystalline mullite fibers and can be directly exposed to fire.
Read More
By HDNRCL · 02/04/2024
Monolithic Refractories in the metallurgical industry: an important role in protecting high-temperature equipment

In the metallurgical industry, the use of Monolithic Refractories plays an indispensable role in the lining and masonry of equipment such as steelmaking furnaces, electric furnaces and converters. These equipment are subjected to extreme conditions such as high temperatures, chemical corrosion and mechanical action, thus placing stringent requirements on the performance of refractory materials.The steelmaking furnace is the key equipment for smelting and refining pig iron or scrap steel into various steel products. Inside the steelmaking furnace, high-temperature molten metal and slag will cause severe erosion and corrosion of the lining materials. Therefore, it is necessary to use amorphous refractory materials with excellent fire resistance and corrosion resistance for lining and masonry. These materials usually need to have high refractory acid resistance, excellent high temperature resistance and slag resistance to ensure that they can maintain structural stability and durability at high temperatures.Electric furnace is one of the commonly used smelting equipment in the metallurgical industry. It uses electric energy to heat scrap steel or other metal materials to a high temperature for smelting. Inside the electric furnace, due to high temperature and chemical reactions, a large amount of gas and slag will be produced, causing serious erosion of the lining material. Therefore, choosing amorphous refractory materials with excellent fire resistance for the lining and masonry of electric furnaces can extend the service life of the equipment and improve production efficiency.The converter is an important equipment used in the smelting and refining process. During the working process of the converter, high-temperature metal liquid and slag will cause serious erosion of the inner wall of the converter. Therefore, it is necessary to choose amorphous refractory materials with good fire resistance and corrosion resistance. Lining and masonry. These materials usually need to have high-temperature strength, thermal shock resistance and chemical stability to ensure the normal operation and long-term stability of the converter.Monomorphous refractory materials play an important role in equipment such as steel-making furnaces, electric furnaces and converters in the metallurgical industry. Choosing the Monolithic Refractories can not only protect the inner wall of the equipment from high temperature and corrosion, extend the service life of the equipment, but also improve production efficiency and contribute to the development of the metallurgical industry.High-temperature Mortar, High-temperature BinderHigh bonding strength of binder, strong binding force under high temperature, and no pollution to the environment, great integrity of the lining for the high-temperature plaster masonry, and strong tightness.
Read More