Silicon nitride bonded silicon carbide products -ramming
- Ref Price:
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- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 500 m.t./month
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Annual supply: Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
Annual exports: Now we have gained a global sales network reaching Taiwan, Russia, Mongolia, South Korea, Vietnam, Pakistan, Bulgaria, Finland, Greece, Spain, Congo, Angola, South Africa, and Maldives, Jordan and so on. The export figure is more than USD 4 million.
Production equipment: Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
Testing equipment: Our company's testing equipments as follows: High Temperature RUL TesterBulk Density TesterThe Pressure
Strong professional: Our company has thirty years producing experience in refractory product. Our manager will supervise on a various refractory' s production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
- Q:What are the specific requirements of monolithic refractories for continuous casting applications?
- The specific requirements of monolithic refractories for continuous casting applications are designed to withstand the extreme temperatures and thermal shock conditions experienced during the continuous casting process. Firstly, these refractories must have high thermal conductivity to effectively transfer heat away from the molten metal and maintain a stable casting temperature. This helps to prevent the formation of defects such as cracks, hot spots, and uneven solidification in the cast product. Secondly, monolithic refractories for continuous casting applications must have high refractoriness, meaning they can withstand the high temperatures of the molten metal without melting or deforming. This ensures the refractories can provide a protective lining and maintain their structural integrity throughout the casting process. Additionally, these refractories must have excellent resistance to thermal shock. The continuous casting process involves rapid cooling and heating cycles, which can create significant temperature differentials and induce thermal stresses. Monolithic refractories with low thermal expansion and high thermal shock resistance can withstand these conditions without cracking or spalling. Furthermore, good erosion and corrosion resistance are crucial requirements for monolithic refractories in continuous casting applications. The molten metal and slag can be highly corrosive and abrasive, leading to wear and chemical attack on the refractory lining. Hence, refractories with high resistance to erosion and corrosion are essential to ensure the longevity and stability of the lining. Lastly, monolithic refractories for continuous casting applications should have good workability and ease of installation. This allows for efficient and precise lining installation, reducing downtime during maintenance or repairs. Overall, the specific requirements of monolithic refractories for continuous casting applications include high thermal conductivity, refractoriness, thermal shock resistance, erosion and corrosion resistance, as well as good workability. Meeting these requirements ensures the refractories can effectively protect the casting equipment and maintain the quality of the cast products.
- Q:How do monolithic refractories contribute to the efficiency of iron and steel production?
- Monolithic refractories play a crucial role in improving the efficiency of iron and steel production by providing superior thermal insulation and resistance to high temperatures, resulting in reduced heat loss and improved energy efficiency. Additionally, these refractories offer excellent mechanical strength and chemical resistance, enabling them to withstand the harsh conditions within the production process, leading to increased durability and extended service life. Their ability to be easily shaped and installed also facilitates faster maintenance and repair, minimizing downtime and enhancing overall operational efficiency in the iron and steel industry.
- Q:How do monolithic refractories protect the lining of ladles and tundishes?
- Monolithic refractories protect the lining of ladles and tundishes by forming a strong and durable barrier against high temperatures, chemical reactions, and mechanical stresses. These refractories are designed to be resistant to thermal shock and erosion, ensuring that the lining remains intact and unaffected by the molten metal or slag. They also provide insulation, minimizing heat loss and reducing energy consumption. Overall, monolithic refractories act as a reliable shield, extending the lifespan of the ladles and tundishes and preventing any detrimental effects on the lining.
- Q:What are the recommended installation techniques for monolithic refractories?
- The installation techniques for monolithic refractories depend on the specific type and application of the refractory material. However, there are general guidelines that can be followed for most installations of monolithic refractories. 1. Surface Preparation: Prior to installing monolithic refractories, it is essential to ensure that the surface is clean, dry, and free from loose particles or contaminants. This can be accomplished by removing any existing refractory materials, thoroughly cleaning the surface, and allowing it to completely dry. 2. Mixing: Monolithic refractories are typically supplied in either a dry or wet form, depending on the specific material. If the refractory is in a dry form, it must be mixed with water or a suitable liquid binder to achieve a workable consistency. It is important to follow the manufacturer's guidelines for the correct mixing ratio and duration to ensure proper bonding and setting of the refractory material. 3. Application: The technique for applying monolithic refractories can vary depending on the specific material and desired installation method. Some common techniques include troweling, gunning, ramming, and casting. - Troweling: This involves manually applying the refractory material with a trowel, typically used for thin linings or patching small areas. - Gunning: Gunning is a method of applying refractory material using a gunning machine or handheld gun. It is suitable for large areas or areas that are difficult to access. The refractory material is mixed with water or a liquid binder and sprayed onto the surface at a high velocity. - Ramming: Ramming involves compacting the refractory material into place using a ramming tool or pneumatic hammer. It is commonly used for forming furnace linings or repairing damaged areas. - Casting: Casting refers to pouring the refractory material into a mold to create a desired shape or lining. It is often used for complex shapes or large-sized components. 4. Curing and Drying: Once the refractory material is applied, it must be properly cured and dried to achieve its maximum strength and thermal properties. The curing and drying process may vary depending on the specific material, but typically involves controlled heating at a gradual rate to eliminate any remaining moisture and allow the refractory to set and harden properly. It is important to note that these are general guidelines, and it is always recommended to consult the manufacturer's instructions and specifications for the specific monolithic refractory material being used. Following the recommended installation techniques will help ensure the proper performance and longevity of the refractory lining.
- Q:What are the considerations for selecting monolithic refractories for reheating furnaces?
- When selecting monolithic refractories for reheating furnaces, there are several important considerations to take into account. 1. Temperature requirements: Reheating furnaces operate at high temperatures, so it is crucial to choose monolithic refractories that can withstand the desired temperature range without experiencing significant thermal degradation or failure. The refractories must have a high refractoriness to maintain their structural integrity under these conditions. 2. Thermal shock resistance: Reheating furnaces often undergo rapid temperature changes due to the heating and cooling cycles. Monolithic refractories with good thermal shock resistance are essential to prevent cracking and spalling, which can lead to premature failure of the lining. 3. Mechanical strength: The monolithic refractories should have sufficient mechanical strength to withstand the stresses induced by the weight of the materials being heated and any mechanical movements within the furnace. This helps to prevent deformation or structural failure of the refractory lining. 4. Chemical compatibility: The refractories must be chemically compatible with the atmosphere and process gases present in the reheating furnace. They should resist chemical attacks from the gases or any corrosive substances generated during the reheating process. This ensures a longer service life for the refractory lining. 5. Abrasion resistance: Reheating furnaces often handle abrasive materials, such as hot billets or slabs. Selecting monolithic refractories with good abrasion resistance will help to minimize wear and extend the lifespan of the lining. 6. Ease of installation: Monolithic refractories offer advantages in terms of ease of installation compared to traditional brick refractories. However, it is important to consider the installation method and time required for the chosen monolithic refractory. Some monolithic refractories may require specialized equipment or techniques for installation. 7. Cost-effectiveness: While the initial cost of monolithic refractories may be higher than traditional brick refractories, their longer service life and ease of installation can result in overall cost savings. Assessing the cost-effectiveness of different monolithic refractory options is crucial for selecting the most suitable one for the reheating furnace. By considering these factors, one can make an informed decision when selecting monolithic refractories for reheating furnaces, ensuring optimal performance, durability, and cost-effectiveness.
- Q:What are the recommended curing and drying procedures for monolithic refractories?
- The recommended curing and drying procedures for monolithic refractories typically involve a gradual heating process to ensure proper bonding and removal of any moisture. This process usually starts with a preheat at a low temperature to eliminate any residual water, followed by a controlled temperature increase over a specific duration to achieve the desired strength and stability. It is essential to follow the manufacturer's guidelines and consider the specific composition and thickness of the refractory material to ensure optimal curing and drying.
- Q:What are the cost implications of using monolithic refractories in the iron and steel industry?
- The use of monolithic refractories in the iron and steel industry can have various cost implications. Firstly, the initial cost of monolithic refractories tends to be higher compared to traditional brick refractories. Monolithic refractories are typically made from high-quality raw materials and require specialized installation techniques, leading to higher upfront expenses. However, these higher upfront costs can be offset by the benefits provided by monolithic refractories in terms of performance, durability, and reduced maintenance requirements. One of the major cost implications of using monolithic refractories is their extended service life. Monolithic refractories have excellent thermal shock resistance and can withstand high temperatures, mechanical stress, and corrosive environments. This results in reduced downtime and fewer replacement or repair needs, leading to overall cost savings in the long run. Additionally, monolithic refractories offer flexibility in design and application. They can be easily shaped and installed to fit complex geometries, resulting in optimized furnace linings and improved energy efficiency. By minimizing heat loss, monolithic refractories can reduce fuel consumption and lower energy costs for the iron and steel industry. Furthermore, the installation and maintenance of monolithic refractories can be less labor-intensive compared to brick refractories. This can result in reduced labor costs and shorter installation time, leading to potential cost savings for the industry. Another cost implication of using monolithic refractories is their impact on productivity. Monolithic refractories provide improved thermal insulation, reduced slag adhesion, and enhanced resistance to wear and erosion. These properties can lead to increased production rates, improved product quality, and minimized process interruptions, ultimately translating into higher profitability for iron and steel manufacturers. It is important to note that the cost implications of using monolithic refractories can vary depending on the specific application, furnace type, and operating conditions. Therefore, a thorough cost-benefit analysis should be conducted to evaluate the overall economic impact of implementing monolithic refractories in the iron and steel industry.
- Q:How does the choice of monolithic refractory impact the overall cost of iron and steel production?
- The choice of monolithic refractory can have a significant impact on the overall cost of iron and steel production. Monolithic refractory refers to a type of refractory material that is installed in a continuous manner, as opposed to traditional brick or tile refractories. One key factor that affects the cost of iron and steel production is the lifespan of the refractory. Monolithic refractories generally have a longer lifespan compared to traditional brick or tile refractories. This means that they require less frequent maintenance and replacement, resulting in lower overall costs over time. Additionally, monolithic refractories have a higher resistance to thermal shock and mechanical stress, which further extends their lifespan and reduces the need for repairs and replacements. Another important consideration is the energy efficiency of the monolithic refractory. These refractories have better insulation properties, which leads to reduced heat loss during the iron and steel production process. This helps to lower energy consumption and, consequently, the overall cost of production. The improved insulation also contributes to a more stable and controlled temperature profile within the furnace, resulting in better product quality and reduced scrap rates. Furthermore, monolithic refractories offer greater flexibility in terms of installation and repair. They can be easily applied to complex shapes and structures, allowing for more efficient use of refractory materials. This reduces waste and lowers material costs. The ease of installation also saves time and labor, further contributing to cost savings. Additionally, monolithic refractories are known for their superior performance in high-temperature environments. They exhibit excellent thermal conductivity and resistance to chemical attacks, ensuring optimal furnace operation and reducing the likelihood of downtime and production delays. This, in turn, minimizes the impact of unexpected maintenance, repairs, and shutdowns on the overall cost of iron and steel production. In conclusion, the choice of monolithic refractory can have a significant impact on the overall cost of iron and steel production. Its longer lifespan, improved energy efficiency, ease of installation and repair, and superior performance in high-temperature environments all contribute to cost savings in various aspects of the production process. Thus, careful consideration of the type of monolithic refractory used can result in significant cost reductions and improved overall efficiency in iron and steel production.
- Q:Can monolithic refractories be used for lining iron and steel ladles during casting and pouring?
- Yes, when it comes to lining iron and steel ladles during casting and pouring, monolithic refractories are the go-to option. Unlike traditional refractory bricks, which consist of multiple pieces, monolithic refractories are composed of a single, uniform structure. Monolithic refractories are highly favored for ladle lining in iron and steel casting due to their numerous advantages. Firstly, they exhibit exceptional resistance to thermal shock, enabling them to endure the intense temperatures encountered during casting and pouring. This is of utmost importance since ladles are constantly exposed to extreme heat. Moreover, monolithic refractories provide superior resistance to erosion and corrosion, ensuring that the lining remains intact amidst the harsh conditions and chemical reactions that transpire when molten metal makes contact with the ladle. Additionally, they possess excellent thermal insulation properties, diminishing heat loss and enhancing energy efficiency throughout the casting process. Furthermore, monolithic refractories boast remarkable versatility, enabling easy installation, repair, and replacement. They can be molded and shaped to conform to the specific requirements of ladles, resulting in a snug and secure lining. This adaptability also enables swift maintenance and repair, minimizing downtime and optimizing productivity. In conclusion, monolithic refractories are the perfect choice for lining iron and steel ladles during casting and pouring. Their resistance to thermal shock, erosion and corrosion, thermal insulation properties, and ease of installation render them highly suitable for this demanding application.
- Q:How do monolithic refractories provide thermal insulation in the iron and steel industry?
- Monolithic refractories provide thermal insulation in the iron and steel industry by forming a protective barrier that minimizes heat transfer. They have low thermal conductivity, preventing the rapid transfer of heat from the hot environment to the cooler surroundings. This insulation property helps to maintain high temperatures within furnaces and other equipment, ensuring efficient and consistent heat distribution for the iron and steel production processes.
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Silicon nitride bonded silicon carbide products -ramming
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 500 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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