Monolithic Refractories for Iron and Steel Industry - Mould Powders / Continuous Casting Powders and Granules
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
You Might Also Like
Product Description:
The Mould Powders are composed essentially of CaO-Al2O3-SiO2 with addition of fluxing agents and carbon.
Mold Powders have different functions:
Lubrication between the solidifying strand and mould wall
Control of heat transfer between the strand and mould
Thermal insulation of the liquid steel surface
Prevention of re-oxidation
Inclusion absorption
The above functions are controlled by the following properties:
Basicity
Viscosity
Melting speed
Melting behaviour
Crystallization
The choice of a mould powder depends on:
Mould size
Oscillation conditions
Casting speed
Steel grade
Technical Data:
FAQ
Q:Are you a trading company or manufacturer?
A:CNBM is a large-scale central governmental industrial group with its own manufacturing sector, research and development sector, trading sector and logistics sector.
Q:I have some special requirement about specifications.
A:We have a well-rounded product range, which endows us with the capability of applying many special specifications. Please feel free to contact us with yours.
Q:Do you accept OEM service?
A:Yes, we do.
Q:What is your delivery time?
A:It depends on the size/complexity of your order and our own production schedule. Usually we provide a faster delivery than the industry's average.
Q:What is the payment term?
A:Our payment terms are negotiable.
Q:Can I have my own logo on the product?
A:Sure, we can apply your own logo on the products according to your drawings.
- Q: How are monolithic refractories applied in the hot face and cold face of furnace linings?
- Monolithic refractories are applied in the hot face and cold face of furnace linings through different methods. For the hot face, monolithic refractories are typically sprayed or troweled onto the surface, forming a dense and heat-resistant layer. This layer protects the furnace from high temperatures and thermal shocks. In contrast, for the cold face, monolithic refractories are usually cast or gunned into place, creating a more insulating layer. This layer helps to maintain a lower temperature on the outer surface of the furnace lining. Overall, the application of monolithic refractories in both the hot face and cold face ensures optimal performance and durability of furnace linings.
- Q: How do monolithic refractories withstand high temperatures and thermal cycling?
- Monolithic refractories withstand high temperatures and thermal cycling due to their unique composition and structure. They are made from a single piece or material, which eliminates joints or seams that could be vulnerable to thermal stress. Additionally, they are designed with a high thermal conductivity and low thermal expansion, allowing them to expand and contract without cracking or spalling. This enables them to maintain their integrity and mechanical strength even under extreme temperature fluctuations, making them highly durable and suitable for applications in industries such as steel, cement, and petrochemical.
- Q: How do monolithic refractories improve the lining of converters and refining vessels?
- Monolithic refractories play a crucial role in improving the lining of converters and refining vessels in several ways. Firstly, monolithic refractories offer excellent thermal insulation properties, which helps in maintaining the desired temperature inside the converters and refining vessels. This is important because high temperatures are required for various metallurgical processes to occur effectively. Secondly, monolithic refractories have high chemical resistance, which is vital in the harsh conditions of converters and refining vessels. These vessels often come into contact with corrosive materials and aggressive slags, and the monolithic refractories prevent the lining from deteriorating or being eroded by these substances. Moreover, monolithic refractories provide superior mechanical strength and stability, ensuring that the lining remains intact even under high operational stresses. This is especially important in converters and refining vessels where there are frequent mechanical movements and thermal expansions. Additionally, monolithic refractories offer easy installation and repair. Unlike traditional bricks, which require time-consuming and complex assembling, monolithic refractories can be applied as a single mass, reducing downtime during installation or repair. This feature saves both time and cost in maintaining the lining of converters and refining vessels. Overall, the use of monolithic refractories in the lining of converters and refining vessels significantly enhances their performance and longevity. They provide excellent thermal insulation, chemical resistance, mechanical strength, and ease of installation and repair, ensuring efficient and reliable operation in the metallurgical processes.
- Q: How do monolithic refractories improve the efficiency of reheating furnaces in steel plants?
- Monolithic refractories improve the efficiency of reheating furnaces in steel plants by providing a superior lining material that offers high thermal conductivity, excellent heat resistance, and resistance to thermal shock. These refractories help to minimize heat loss and improve heat transfer, resulting in reduced energy consumption and increased furnace productivity. Additionally, the use of monolithic refractories eliminates the need for time-consuming bricklaying, allowing for quicker furnace start-up times and reduced maintenance downtime.
- Q: What are the main causes of monolithic refractory failure in the iron and steel industry?
- The main causes of monolithic refractory failure in the iron and steel industry include thermal cycling, chemical attack, mechanical wear, and improper installation or curing.
- Q: How do monolithic refractories withstand high temperatures in iron and steel production?
- Monolithic refractories, which are tailored for iron and steel production, have the capability to endure the formidable temperatures involved. Unlike traditional brick refractories that are built brick by brick, monolithic refractories are made from a single piece or material. The resilience of monolithic refractories against high temperatures is due to their distinctive composition and structure. They are crafted from top-notch raw materials, such as alumina, magnesia, silica, and carbon, which possess high melting points and exceptional heat resistance. To shape and strengthen the monolithic refractory, it is commonly mixed with a binder like clay or cement. This binder assists in binding the refractory particles together and provides the necessary structure to withstand thermal stresses. Moreover, the mixture can include various additives to further enhance the refractory properties. Throughout the iron and steel production process, monolithic refractories encounter extreme temperatures, rapid heating and cooling cycles, and chemical reactions with molten metals and slag. Nevertheless, the unique composition and structure of monolithic refractories enable them to withstand these harsh conditions. The high melting point materials utilized in monolithic refractories prevent them from melting or deforming under the intense heat of iron and steel production. These materials exhibit excellent thermal conductivity, effectively transferring heat away from hot surfaces and preventing overheating and damage. Furthermore, the binders and additives in monolithic refractories enhance their resistance to thermal shock, which arises from sudden temperature changes. This resistance is vital in iron and steel production since the refractories are frequently exposed to extreme temperature differentials. Lastly, the monolithic nature of these refractories eliminates the presence of joints and gaps commonly found in traditional brick refractories. The absence of joints minimizes the risk of heat leakage and infiltration of molten metal or slag, ensuring a more efficient and durable lining. In conclusion, monolithic refractories are specifically engineered to endure the high temperatures involved in iron and steel production. Their composition, structure, and unique properties enable them to withstand extreme heat, rapid temperature changes, chemical reactions, and thermal stresses, making them essential components in the manufacturing of iron and steel.
- Q: What are the specific requirements of monolithic refractories for blast furnace applications?
- Monolithic refractories used in blast furnace applications have specific requirements to withstand the harsh conditions and high temperatures within the furnace. Some of these requirements include: 1. Thermal stability: Monolithic refractories need to have excellent thermal stability to withstand the extreme temperatures encountered in blast furnaces. They should resist thermal shock and maintain their physical and chemical properties at high temperatures. 2. High strength: Blast furnace conditions exert significant pressure and mechanical stress on refractory linings. Therefore, monolithic refractories need to have high strength and resistance to mechanical wear to withstand the weight of the burden and the movement of materials inside the furnace. 3. Chemical resistance: Blast furnace environments are highly corrosive due to the presence of molten metals, slag, and gases. Monolithic refractories should exhibit excellent chemical resistance to prevent chemical reactions with the molten material and gases, which can lead to refractory degradation. 4. Erosion and abrasion resistance: The materials being processed in a blast furnace can cause erosion and abrasion, leading to wear of the refractory lining. Monolithic refractories used in blast furnaces should be able to withstand these erosive and abrasive forces to ensure a longer service life. 5. Low porosity: Blast furnace refractories should have low porosity to minimize the penetration of molten materials and gases, which can cause refractory spalling and damage. Low porosity also helps in maintaining the thermal stability and overall performance of the refractory lining. 6. Dense structure: The refractory lining in a blast furnace should have a dense structure to prevent the penetration of molten slag and metal into the lining, which can cause refractory failure. A dense structure also aids in the refractory's heat insulation properties. 7. Easy installation: Blast furnace refractories need to be easily installed and repaired due to the frequent maintenance and repair requirements of blast furnaces. Monolithic refractories offer the advantage of easy installation, as they can be cast, gunned, or sprayed onto the refractory surface, allowing for quick repairs and reduced downtime. Overall, the specific requirements of monolithic refractories for blast furnace applications include thermal stability, high strength, chemical resistance, erosion and abrasion resistance, low porosity, dense structure, and easy installation. Meeting these requirements ensures the durability and efficiency of the refractory lining, leading to improved blast furnace performance.
- Q: How do monolithic refractories improve the efficiency of ladle and tundish preheating furnaces?
- Monolithic refractories greatly contribute to the efficiency of ladle and tundish preheating furnaces. These refractories, made from a single material, are easily installed, repaired, and replaced, making them versatile and cost-effective. The efficiency of these furnaces is improved thanks to the outstanding thermal insulation properties of monolithic refractories. With low thermal conductivity, they effectively retain heat and prevent its escape. This insulation capability ensures an efficient preheating process, reducing energy consumption and costs by minimizing heat loss. Additionally, monolithic refractories possess high thermal shock resistance, which is crucial in ladle and tundish preheating furnaces. These furnaces experience rapid temperature changes during the pouring of molten metal, which can lead to cracking or failure of traditional refractories. However, monolithic refractories are specifically designed to withstand thermal shock, remaining intact and maintaining their insulating properties even in extreme conditions. This durability reduces downtime and maintenance requirements, thus enhancing overall efficiency. Furthermore, monolithic refractories provide a seamless and uniform lining surface, improving heat transfer within the furnace. The absence of joints or seams reduces the risk of heat leakage and ensures even distribution of heat throughout the lining. This promotes uniform heating of the ladle or tundish, allowing for more efficient preheating and better temperature control. In conclusion, the use of monolithic refractories in ladle and tundish preheating furnaces results in improved efficiency due to their exceptional thermal insulation properties, high thermal shock resistance, and ability to provide a seamless and uniform lining. These refractories minimize heat loss, reduce energy consumption, and enhance the overall performance of the preheating process.
- Q: How are monolithic refractories used in the repair and maintenance of ladle and tundish linings?
- Monolithic refractories are used in the repair and maintenance of ladle and tundish linings by providing a durable and heat-resistant material that can withstand the harsh conditions of molten metal handling. These refractories are applied as a single, continuous lining, eliminating the need for individual bricks or tiles, which simplifies the repair and maintenance process. They can be easily shaped and installed in the desired areas, allowing for efficient repair of damaged sections. Monolithic refractories also offer excellent resistance to thermal shock, erosion, and corrosion, ensuring the longevity and reliability of ladle and tundish linings.
- Q: How are monolithic refractories different from traditional refractory materials?
- Monolithic refractories are different from traditional refractory materials in several ways. Firstly, while traditional refractory materials are typically made from bricks, blocks, or tiles, monolithic refractories are composed of a single, continuous material. This means that they do not have any joints or seams, which can be a weak point in traditional refractory structures. Secondly, monolithic refractories are much easier to install compared to traditional refractory materials. They can be easily shaped and applied in situ, allowing for greater flexibility in design and construction. In contrast, traditional refractory materials require skilled labor and more time-consuming installation methods such as bricklaying. Furthermore, monolithic refractories offer improved thermal shock resistance. Due to their continuous structure, they can better withstand sudden changes in temperature without cracking or spalling. Traditional refractory materials, on the other hand, may be more susceptible to thermal shock damage. Another advantage of monolithic refractories is their ability to provide better insulation. Their composition often includes lightweight aggregates or insulating fibers, which help to reduce heat loss and improve energy efficiency. Traditional refractory materials, while still capable of providing insulation, may not offer the same level of thermal efficiency. Lastly, monolithic refractories have the advantage of being more cost-effective. Their ease of installation, reduced labor requirements, and improved thermal performance contribute to lower overall project costs compared to traditional refractory materials. In summary, monolithic refractories differ from traditional refractory materials in terms of their continuous structure, ease of installation, improved thermal shock resistance, better insulation properties, and cost-effectiveness. These characteristics make them a preferred choice in many industries where high-temperature applications and thermal insulation are required.
Send your message to us
Monolithic Refractories for Iron and Steel Industry - Mould Powders / Continuous Casting Powders and Granules
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
Similar products
Hot products
Hot Searches
Related keywords
