Tundish refractories are crucial for steelmaking, managing molten steel flow and purity under harsh conditions. Zhong Tang Materials (ZTM) provides comprehensive refractory solutions, including stoppers, various nozzles (SEN, metering), working linings (castables, dry mass), and flow control parts (slag walls, impact pots).
In the high-temperature operation of electric arc furnaces (EAF), the lining materials must withstand extreme temperature fluctuations, as well as erosion from molten steel and chemical slag. Choosing the right refractory materials not only extends the life of the furnace but also improves production efficiency. Zhongtang Materials (ZTM) offers a comprehensive range of refractory material solutions, addressing both construction and maintenance materials to help you quickly find suitable products that ensure efficient operation of electric arc furnaces (EAF) under demanding conditions. 1. Construction Refractory Materials ZTM’s construction refractory materials are specifically designed to cope with the extreme high temperatures and chemical corrosive environments of electric arc furnaces (EAF), ensuring durability and stability for the furnace body, bottom, and key components. Magnesia Bricks and Magnesia-Carbon Bricks (MgO-C bricks) ZTM provides magnesia bricks and magnesia-carbon bricks (MgO-C bricks) that play a crucial role in the furnace body, bottom, and tapping areas of electric arc furnaces (EAF). Magnesia Bricks are primarily composed of high-purity fused magnesia, exhibiting excellent high-temperature resistance and slag erosion resistance, making them particularly suitable for the bottom and body of the furnace, maintaining long-term stability. Magnesia-Carbon Bricks (MgO-C bricks), made from magnesia and flake graphite, combine outstanding thermal shock resistance and chemical erosion resistance, making them ideal for areas subjected to high-temperature molten steel impacts and extreme loads, providing additional protection for these vulnerable areas. MGO-C BRICK FOR EAF EBT Bricks and Filling Sand for EBT The tapping area of the electric arc furnace (EAF) is a critical part, and ZTM’s EBT bricks and filling sand for EBT offer comprehensive protection for this region. EBT Bricks feature excellent thermal shock resistance and wear resistance, ensuring structural stability in frequently operated high-temperature environments and extending the service life of the equipment. Filling Sand for EBT ensures the sealing of molten steel during flow, preventing leaks and ensuring safety and continuity during operations. EBT Bricks Filling Sand for EBT Bottom Ramming Mass and Precast Product The bottom and top of the electric arc furnace (EAF) also require high-strength refractory materials, and ZTM’s bottom ramming mass and precast products provide the best construction solutions for these areas. Bottom Ramming Mass is a high-density, high-erosion-resistant material specifically designed to enhance the stability of the furnace bottom and extend its service life. Furnace Roof and Precast Block for Tapping Spout provide excellent thermal shock and high-temperature resistance for the top and tapping channels of the electric arc furnace (EAF), reducing maintenance frequency and improving overall equipment efficiency. Bottom Ramming Mass Furnace Roof Precast 2. Maintenance Refractory Materials Maintenance is crucial during the daily operation of electric arc furnaces (EAF). ZTM offers gunning mass and hot repair mass that efficiently address lining damage, ensuring continuous and effective operation of the equipment. Gunning Mass: ZTM’s gunning mass has high adhesion properties and is used for online repairs in electric arc furnaces (EAF). It can quickly repair cracks and erosion in the lining caused by high temperatures and wear, reducing further damage and extending the lining’s lifespan. Hot Repair Mass: Designed for non-shutdown repair work, hot repair mass can rapidly solidify and complete repairs under high-temperature conditions. These materials not only minimize equipment downtime but also ensure continuity in production, making them an ideal choice for efficient maintenance of electric arc furnaces (EAF). Gunning Mass Hot Repair Mass 3. Our Professional Experience Zhongtang Materials (ZTM) has over 15 years of rich experience in the refractory materials industry. Our professional team understands the needs of customers in different markets and the related export policies, dedicated to providing customized solutions for each client. This ensures the performance and stability of high-temperature equipment, helping customers maintain a competitive edge in the market. 4. High-Quality Refractory Materials We are committed to producing high-quality refractory materials using advanced production processes and strict quality control procedures. Our production lines are equipped with professional quality inspectors to ensure that every batch of products meets customer expectations. Additionally, through customer feedback, we continuously improve and enhance product performance to adapt to market changes. Contact Us Related Posts More Blog
In the steel production industry, the ladle is an essential piece of equipment responsible for transporting molten metal from the steelmaking furnace to the continuous casting machine. Since the service life and stability of the ladle lining are critical, they directly affect production efficiency and longevity. Therefore, ZTM recognizes these vital needs and offers comprehensive refractory brick solutions for ladles to enhance refractory material lifespan, reduce maintenance frequency, and ensure safe ladle operations under high temperatures and pressures. 1. Key Considerations in Refractory Brick Selection During operation, ladles endure extreme temperatures and corrosive slags, which lead to wear, erosion, and cracking of the lining. Consequently, selecting the right refractory brick material is crucial for maintaining ladle performance. ZTM provides a range of refractory brick solutions for ladles, including magnesia-carbon bricks and alumina-magnesia spinel bricks. These materials are known for their exceptional slag resistance, high-temperature stability, and thermal shock resistance. Depending on the specific conditions in which your ladle operates, ZTM will recommend the most suitable material combination to ensure optimal performance. Magnesia-Carbon Bricks: Manufactured from premium fused magnesia and flake graphite, these bricks deliver superior slag resistance, corrosion resistance, and thermal shock stability, effectively protecting the ladle’s sidewalls from molten steel and slag erosion. Alumina-Magnesia Spinel Bricks: Comprising high-purity fused magnesia, tabular alumina, and flake graphite, these bricks offer excellent resistance to thermal shock, corrosion, erosion, and chemical attacks, making them ideal for high-demand processes involving complex steel compositions. MGO-C BRICK FOR LADLE AL₂O₃-MGO-C BRICK 2. Customized Refractory Brick Solutions for Ladles Given that every steel plant has unique ladle dimensions and operating conditions, ZTM offers fully customized refractory brick solutions for ladles. We tailor the brick shapes and formulations according to the specific dimensions and steel grades used by our customers to ensure optimal performance. No matter how complex your ladle design, we can adjust the brick shapes and material ratios to ensure the best performance and extended service life in practical applications. 3. Quality Control of Refractory Bricks At ZTM, we implement strict quality control throughout the production process of our ladle refractory bricks, from raw material selection, batching, forming, and sintering to final inspection. This meticulous attention to quality ensures that the bricks maintain high performance during use, significantly reducing safety risks associated with brick quality issues. MGO-C BRICK PRODUCE FACILITY INTRODUCTION 4. Strategies to Extend Ladle Service Life Not only does ZTM provide high-quality refractory bricks, but we also offer comprehensive strategies to extend the service life of ladles. By optimizing the selection and usage of refractory materials, we help customers reduce the frequency of ladle lining replacements and lower maintenance costs. Additionally, ZTM’s refractory brick products possess outstanding thermal shock stability, effectively minimizing damage caused by temperature fluctuations, reducing the occurrence of accidents, and ensuring the continuity and safety of the steel production process. As a result, this further extends the ladle’s service life. 5. Customer Support and Technical Services When you choose ZTM, you are not just purchasing refractory brick products; you are selecting a comprehensive refractory material solutions provider! We offer full support to our customers, from design, material selection, and construction to after-sales service. Our technical team, with extensive industry experience, provides tailor-made refractory brick solutions for ladles and promptly responds to customer needs. Moreover, ZTM’s after-sales service team regularly monitors the condition of ladle linings and provides necessary technical support and maintenance recommendations to ensure that customers’ ladles are always in optimal working condition. Contact Us Related Posts More Blog
When discussing refractory raw materials, customers are most concerned about the material’s durability, stability, and applicability. High Purity Large Crystal Fused Magnesia (LCFM) meets these needs exceptionally well as a high-quality refractory material. 1. High Purity & Chemical Stability LCFM typically contains 97% to 98% magnesium oxide (MgO), maintaining good chemical stability in high-temperature and corrosive environments. Customers can confidently use high-purity LCFM in refractory applications for the steel, cement, and glass industries because it consistently demonstrates reliable chemical stability and resistance to corrosion in such conditions. High-Purity Large Crystal Fused Magnesia（LCFM） 2. Durability & Mechanical Strength The high bulk density and low porosity of LCFM allow it to withstand mechanical wear and chemical erosion while maintaining long-term stability and durability. This significantly reduces maintenance costs and downtime, thereby improving production efficiency. LCFM Exhibits Excellent Durability and Mechanical Strength 3. Thermal Conductivity & Stability Large Crystal Fused Magnesia not only has excellent thermal conductivity but also possesses superior thermal shock resistance. It effectively conducts heat in high-temperature environments and is less prone to thermal shock cracks, ensuring stable performance in steelmaking furnaces, cement kilns, and glass furnaces. 4. Slag Resistance and Corrosion Resistance LCFM exhibits a high level of resistance to slag infiltration and corrosion, particularly against alkaline slags. This makes it very suitable for linings in steel ladles and converters, ensuring long-term stability and durability in the steel industry. In summary, LCFM, as a high-quality refractory material, can meet customers’ demands for high purity, durability, thermal conductivity, and slag resistance in various refractory applications. Whether in the steel industry, cement industry, or glass industry, LCFM provides reliable support and assurance, helping customers improve production efficiency and reduce costs. Contact Us Related Posts More Blog
