Monoblock Stopper for continuous casting
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
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Description:
1.excellent thermal shock resistance;
2.excellent mechanical properties and resistance to vibration
3. long service life
Monoblock stopper is one of the important steel flow regulation components, and to meet the particularly demanding operating conditions, we manufacture varieties of stoppers with customised specifications to suit the different designs of our customers' tundishes
To facilitate customisation, during our manufacturing process, we apply different mixtures of aluminia or magnesia to the nose of our stoppers for our customers, enabling them to cast various types of steel.
The characteristics of the stopper are as follows:
PARMETER | Major portion | Stopper head | Stopper head | Stopper head |
F.C+SiC (%) | 20 | 10 | 20 | 12 |
Al2O3 (%) | 68 | 80 | ||
ZrO2 (%) | 72 | |||
MgO (%) | 75 | |||
apparent porosity(%) | 15 | 14 | 16 | 15 |
bulk density(g/cm3) | 2.35 | 2.80 | 3.30 | 2.70 |
CCS (Mpa) | 27 | 26 | 27 | 25 |
MOR (Mpa) | 8.0 | 8.0 | 9.0 | 8.0 |
The stopper head is the key part. Standard materials are：
Alumina carbon suitable for ordinary steel flow control
Zirconium carbon suitable for special alloy steel flow control
Magnesia carbon suitable for Ca-treatment steel flow control
- Q: How do monolithic refractories withstand high temperatures in iron and steel production?
- Monolithic refractories are specially designed to withstand the high temperatures encountered in iron and steel production. These refractories are made from a single piece or a single material, unlike traditional brick refractories that are made by laying bricks one by one. The ability of monolithic refractories to withstand high temperatures is due to their unique composition and structure. They are made from high-quality raw materials such as alumina, magnesia, silica, and carbon, which have high melting points and excellent heat resistance. The monolithic refractory is typically mixed with a binder, such as clay or cement, to give it shape and strength. This binder helps to hold the refractory particles together and provides the necessary structure to withstand thermal stresses. Additionally, various additives and additives can be included in the mix to further enhance the refractory properties. During iron and steel production, the monolithic refractories are exposed to extreme temperatures, rapid heating, and cooling cycles, as well as chemical reactions with molten metals and slag. However, the unique composition and structure of monolithic refractories enable them to endure these harsh conditions. The high melting point materials used in monolithic refractories prevent them from melting or deforming under the intense heat of iron and steel production. These materials have excellent thermal conductivity, allowing them to effectively transfer heat away from the hot surfaces, thus preventing overheating and damage. Furthermore, the binders and additives in monolithic refractories help to increase their resistance to thermal shock, which occurs when there is a rapid change in temperature. This resistance is crucial in iron and steel production since the refractories are frequently exposed to extreme temperature differentials. Lastly, the monolithic nature of these refractories eliminates the joints and gaps 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 designed to withstand the high temperatures encountered in iron and steel production. Their composition, structure, and unique properties enable them to endure extreme heat, rapid temperature changes, chemical reactions, and thermal stresses, making them essential components in the manufacturing of iron and steel.
- Q: How do monolithic refractories perform in blast furnace taphole applications?
- Monolithic refractories perform exceptionally well in blast furnace taphole applications due to their unique characteristics and properties. Firstly, monolithic refractories are known for their superior thermal resistance. Blast furnace tapholes are exposed to extremely high temperatures and thermal shocks, making it essential to have a refractory material that can withstand these conditions. Monolithic refractories have high refractoriness, meaning they can maintain their structural integrity even at elevated temperatures, ensuring the taphole remains functional. Secondly, monolithic refractories have excellent erosion and corrosion resistance. In blast furnace taphole applications, the refractory material is constantly exposed to molten metal, slag, and gases that can cause erosion and chemical reactions. Monolithic refractories are designed to resist these aggressive environments, minimizing wear and extending the service life of the taphole. Furthermore, monolithic refractories offer good thermal conductivity and insulation properties. This is crucial for blast furnace tapholes as they need to maintain a consistent and controlled flow of molten metal. The refractory material must be able to transfer heat efficiently while also providing insulation to prevent excessive heat loss, ensuring optimal performance and productivity of the blast furnace. Additionally, monolithic refractories are easy to install and repair. Blast furnace tapholes require regular maintenance due to the harsh conditions they are subjected to. Monolithic refractories can be easily shaped and applied, allowing for quick repairs or replacement of damaged areas. This reduces downtime and increases the operational efficiency of the blast furnace. In summary, monolithic refractories are highly suitable for blast furnace taphole applications due to their excellent thermal resistance, erosion and corrosion resistance, good thermal conductivity and insulation properties, as well as ease of installation and repair. These characteristics make them a reliable and effective choice for maintaining the functionality and performance of blast furnace tapholes.
- Q: How do monolithic refractories improve the quality and consistency of iron and steel products?
- The use of monolithic refractories is essential for enhancing the quality and consistency of iron and steel products. These refractories, which are not shaped and can be easily molded and installed, offer several advantages over traditional brick refractories. To begin with, monolithic refractories provide superior thermal insulation properties, which effectively manage heat during the production process. By maintaining consistent and controlled temperatures, these refractories prevent thermal shocks and minimize thermal gradients, resulting in reduced cracking and distortion in the final products. As a result, the dimensional stability and overall quality of the products are improved. Additionally, monolithic refractories exhibit excellent resistance to thermal spalling and erosion. They can withstand high temperatures, chemical attacks, and mechanical stress, protecting the lining of furnaces and vessels used in iron and steel production. This resistance enhances the durability and reliability of refractory linings, preventing premature failure and extending the lifespan of the equipment. Another advantage of monolithic refractories is their ability to create a seamless lining. Unlike brick refractories, which have joints and gaps that can cause heat loss and uneven distribution, monolithic refractories form a continuous lining with no weak points. This ensures uniform heat distribution and minimizes the risk of hotspots or cold spots, resulting in consistent and reliable iron and steel products. Moreover, monolithic refractories offer flexibility in design and installation. They can be customized to fit various shapes and sizes, allowing for better furnace design optimization. This flexibility enables efficient use of space, improved heat transfer, and reduced energy consumption, all of which contribute to the overall quality and consistency of the final iron and steel products. In conclusion, monolithic refractories enhance the quality and consistency of iron and steel products by providing superior thermal insulation, resistance to thermal spalling and erosion, seamless linings, and flexibility in design and installation. These refractories improve the efficiency and reliability of the production process, resulting in higher-quality final products that meet the industry's stringent standards.
- Q: What are the typical compositions of monolithic refractories?
- Monolithic refractories are typically composed of a combination of aggregates, binders, and additives. Aggregates are materials such as alumina, magnesia, or silicon carbide that provide the main refractory properties. The choice of aggregate depends on the desired characteristics of the refractory, such as resistance to high temperatures, thermal shock, or chemical attack. Binders are used to bind the aggregates together and give the refractory its shape and strength. Common binders include clay, calcium aluminate cement, or colloidal silica. The binder also contributes to the overall performance of the refractory, influencing properties such as thermal conductivity and chemical resistance. Additives are often incorporated into the composition to improve specific properties or enhance the processing of the monolithic refractory. These additives can include plasticizers, which improve workability and allow for easier installation, or antioxidants, which can increase the refractory's resistance to oxidation. Overall, the specific composition of a monolithic refractory can vary depending on the intended application and the desired performance characteristics. Different combinations of aggregates, binders, and additives can be tailored to suit specific temperature ranges, chemical environments, or mechanical stresses.
- Q: How do monolithic refractories prevent thermal shock in the iron and steel industry?
- Monolithic refractories prevent thermal shock in the iron and steel industry by providing a continuous and seamless lining that can withstand extreme temperatures and sudden temperature changes. Their high thermal conductivity and low thermal expansion properties allow them to effectively distribute and absorb heat, reducing the likelihood of thermal stress and cracking. Additionally, their ability to form strong bonds with the furnace walls prevents the entry of hot gases and molten metal, further protecting against thermal shock.
- Q: What are the latest advancements in monolithic refractories for the iron and steel industry?
- One of the latest advancements in monolithic refractories for the iron and steel industry is the development of high-performance castables with enhanced properties. These castables are designed to withstand the extreme temperatures and harsh conditions of iron and steel production processes. One major advancement is the use of advanced bonding systems that provide excellent strength and resistance to thermal shock. These bonding systems, such as nano-bonding technology, help improve the overall performance and durability of monolithic refractories. Another significant development is the introduction of low cement castables. These castables contain a reduced amount of cement, resulting in improved high-temperature strength and erosion resistance. This advancement is particularly beneficial for applications in the iron and steel industry where thermal cycling and mechanical stress are common. Additionally, there have been advancements in the composition of monolithic refractories. The use of advanced raw materials, such as high-quality aggregates and additives, has led to improved thermal conductivity, corrosion resistance, and thermal insulation properties. These developments allow for more efficient and sustainable iron and steel production processes. Furthermore, recent advancements have focused on the development of self-flow castables. These castables have excellent flowability, allowing for easy installation and maintenance of refractory linings. This advancement helps reduce installation time and costs while also ensuring improved lining performance. Overall, the latest advancements in monolithic refractories for the iron and steel industry have resulted in improved performance, durability, and efficiency. These advancements enable the industry to enhance its production processes, reduce downtime, and increase overall productivity.
- Q: How are monolithic refractories manufactured?
- Monolithic refractories are manufactured by combining various raw materials, such as aggregates, binders, and additives, with water to create a workable mixture. This mixture is then shaped into the desired form, either by casting, gunning, or ramming. Afterwards, the shaped refractory is dried and fired at high temperatures to achieve the desired strength and thermal properties. The manufacturing process of monolithic refractories allows for flexibility in design and installation, making them suitable for a wide range of applications.
- Q: What are the specific requirements of monolithic refractories for ladle transfer applications?
- To ensure the effectiveness and durability of monolithic refractories used in ladle transfer applications, specific requirements must be met. These requirements are crucial for maintaining the integrity of the ladle lining and preventing any issues during the transfer process. Firstly, it is essential for monolithic refractories designed for ladle transfer applications to possess excellent thermal shock resistance. Ladles undergo extreme temperature changes during the transfer process, and the refractories must be capable of withstanding rapid heating and cooling without developing cracks or spalling. This property serves to prevent any damage to the lining and preserves the structural integrity of the ladle. Secondly, ladle transfer applications necessitate monolithic refractories that exhibit high resistance to chemical attack. Ladles often come into contact with various molten metals and slag, which can possess corrosive properties. The refractories must be able to endure these corrosive environments and maintain their physical and chemical properties over time. Another crucial requirement is good mechanical strength. Ladles can experience significant mechanical stress during the transfer process, including impacts and vibrations. Therefore, the monolithic refractories must possess sufficient strength to resist these mechanical forces and prevent any cracking or failure within the lining. Furthermore, ladle transfer applications frequently involve the use of fluxes and additives, which can possess different physical properties. The refractories used must be compatible with these fluxes and additives to ensure proper performance and avoid any adverse reactions that could impact the lining of the ladle. Lastly, monolithic refractories designed for ladle transfer applications should exhibit low porosity. Low porosity helps to minimize the penetration of molten metal and slag into the refractory lining, thereby reducing the risk of erosion and extending the service life of the refractories. In summary, the specific requirements for monolithic refractories in ladle transfer applications include excellent thermal shock resistance, high resistance to chemical attack, good mechanical strength, compatibility with fluxes and additives, and low porosity. By meeting these requirements, the refractories can effectively endure the harsh conditions of ladle transfer and ensure the longevity and performance of the ladle lining.
- Q: What are the advantages of using monolithic refractories in the iron and steel industry?
- Using monolithic refractories in the iron and steel industry offers several advantages. Firstly, they have excellent thermal insulation properties, allowing them to withstand and retain high temperatures. This is crucial in the manufacturing process as it ensures structural integrity, reduces the risk of failure, and maintains operational efficiency. Secondly, monolithic refractories have superior corrosion resistance. This protects equipment and structures from degradation caused by harsh chemicals and corrosive agents. It extends the lifespan of the refractories, reduces maintenance costs, and minimizes downtime. Another advantage is the versatility of monolithic refractories. Unlike traditional refractory bricks, they can be cast or sprayed into various shapes and sizes. This makes installation easier and allows for better lining design and improved performance. They can also be easily repaired or patched, minimizing production disruptions. Furthermore, monolithic refractories have excellent mechanical strength and abrasion resistance. This ensures they can withstand the constant movement and processing of materials in the industry without compromising performance. Lastly, using monolithic refractories can lead to cost savings. They require less labor and time for installation, resulting in reduced costs. Their longer lifespan, resistance to corrosion and thermal shock, also reduces the need for frequent replacements, minimizing maintenance and downtime costs. In conclusion, monolithic refractories offer advantages such as thermal insulation, corrosion resistance, versatility, mechanical strength, and cost savings. They are an ideal choice for lining furnaces, ladles, and other equipment used in the production of iron and steel.
- Q: What are the specific requirements of monolithic refractories for soaking pit applications?
- Monolithic refractories for soaking pit applications must meet several specific requirements. Firstly, they need to withstand high temperatures and thermal cycling. This means they must be able to endure temperatures exceeding 1500 degrees Celsius without significant degradation. The longevity and durability of the refractories depend on this capability. Secondly, the refractories must have good thermal shock resistance. Since soaking pits often experience rapid changes in temperature, the refractories must be able to handle these fluctuations without cracking or spalling. This is vital to maintain the refractories' integrity. Chemical attacks are another concern in soaking pit applications. Molten metal, slag, and other corrosive substances are present, so the refractories must have excellent chemical resistance. This prevents erosion and chemical reactions. Withstanding the corrosive effects of molten metal and slag, as well as potential chemical reactions, is crucial. Furthermore, mechanical stresses, such as abrasion and impact, occur in soaking pits due to the movement and handling of metal ingots. The monolithic refractories should possess good mechanical strength and abrasion resistance to withstand these stresses. They should be able to resist wear and tear caused by heavy loads and avoid any mechanical failure. Lastly, the refractories used in soaking pits should be easy to work with and install. This ensures efficient and effective lining of the pit, minimizing any gaps or cracks that could lead to heat loss or chemical penetration. In summary, monolithic refractories for soaking pit applications must meet specific requirements regarding high temperature resistance, thermal shock resistance, chemical resistance, mechanical strength, and ease of installation. Fulfilling these requirements guarantees that the refractories can withstand the harsh conditions of soaking pits and maintain their performance and integrity over an extended period.
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Monoblock Stopper for continuous casting
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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