Monolithic Refractories for Iron and Steel Industry - Painting Material for Tundish
- Ref Price:
-
$553.11 - 676.03
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 Mt m.t.
- Supply Capability:
- 5000 Tons Per Month m.t./month
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General Information of Painting Material for Tundish
Made as per international standards, ALRE painting material for tundish is known for its excellent corrosion resistance, long operating life and high refractoriness. Further, these can be provided in different specifications as required by the clients.
Technical data of Painting Material for Tundish
Item | Painting material for tundish | ||||
Al2O3 | % | ≥ | — | ||
MgO | % | ≥ | 60-85 | ||
CaO | % | ≤ | — | ||
SiO2 | % | ≤ | — | ||
SiO2+ Fe2O3+ Al2O3 | % | ≤ | |||
Bulk density ≥ | g/cm3 | 2.0 | |||
C.C.S. (MPa) ≥ | 110℃×24hrs | 5.0 | |||
1500℃×3hrs | 8.0 | ||||
M.O.R.(MPa) ≥ | 110℃×24hrs | — | |||
1500℃×3hrs | — | ||||
Refractoriness (℃) ≥ | — | ||||
Grain size (mm) ≤ | 3 | ||||
Permanent linear change | 1500℃×2hrs | — | |||
1500℃×3hrs | -2.5~-1.0 | ||||
Life time (hr) | 10-40 | ||||
Production line and Packing of Painting Material for Tundish
Feature of Painting Material for Tundish
Easy execution and mending
Excellent abrasive resistance performance
Excellent corrosion and scouring resistance of iron steel
Application of Painting Material for Tundish
ALRE painting material for tundish could be used widely for ladel and tundish of stell and iron industry.
- Q:How do monolithic refractories improve the thermal efficiency of iron and steel furnaces?
- Monolithic refractories improve the thermal efficiency of iron and steel furnaces by providing superior insulation and heat containment properties. These refractories are designed to withstand extreme temperatures and resist thermal shock, ensuring minimal heat loss from the furnace. Additionally, monolithic refractories have low thermal conductivity, allowing for better heat distribution and retention within the furnace. This enhanced thermal efficiency leads to reduced energy consumption and higher productivity in the iron and steel manufacturing process.
- 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:How are monolithic refractories manufactured?
- Manufacturing monolithic refractories is a specific process that consists of multiple steps. The initial step involves selecting and preparing raw materials, typically comprising aggregates, binders, and additives. Aggregates are chosen based on their chemical and physical properties, while binders are utilized to hold the aggregates together. Additives are incorporated to enhance specific properties of the refractory material. Once the raw materials are chosen, they are thoroughly mixed in precise proportions to create a uniform mixture. This mixture is then blended using different techniques such as dry or wet mixing, depending on the desired characteristics of the final product. Following the blending process, the subsequent step involves shaping the refractory material. This can be accomplished through various methods such as casting, gunning, ramming, or spraying. The selection of the method is based on the specific application and requirements of the refractory. After shaping, the refractory material undergoes a curing process. This entails drying the material at a controlled temperature to eliminate any excess moisture and promote the development of desired properties. Lastly, the cured refractory material is subjected to high temperatures in a kiln. This firing process further strengthens the refractory and enhances its ability to withstand heat and other harsh conditions. In summary, the manufacturing of monolithic refractories entails meticulous selection and preparation of raw materials, precise blending, shaping, curing, and firing procedures. This guarantees the production of superior-quality refractory materials capable of withstanding the extreme conditions encountered in various industrial applications.
- Q:How do monolithic refractories prevent slag penetration?
- Slag penetration is effectively prevented by monolithic refractories due to several mechanisms. Firstly, the high-quality materials used in monolithic refractories, such as alumina, silica, and magnesia, possess exceptional resistance to slag attack. These materials have a high melting point and can endure the corrosive nature of the slag. Secondly, the design of monolithic refractories incorporates a dense and compact structure that minimizes porosity. Slag penetration occurs when the molten slag infiltrates the pores and cracks of the refractory material. By reducing porosity, monolithic refractories create a barrier that restricts the entry of slag into the refractory lining. Furthermore, monolithic refractories can be chemically bonded to the substrate, resulting in a strong and impermeable bond. This bond enhances resistance to slag penetration by eliminating any gaps or weak points through which the slag could seep. Moreover, monolithic refractories can possess a high thermal shock resistance. Slag penetration is often intensified by thermal cycling, wherein the refractory material undergoes rapid temperature changes. Monolithic refractories with high thermal shock resistance can endure these temperature fluctuations without cracking or spalling, therefore decreasing the risk of slag penetration. Additionally, the effective prevention of slag penetration relies on the proper installation and maintenance of monolithic refractories. The refractory lining must be appropriately designed, with the right thickness and geometry, in order to provide maximum protection against slag attack. Regular inspection and repair of any damaged or worn-out areas can also prevent slag penetration. In summary, monolithic refractories prevent slag penetration through their excellent resistance to slag attack, dense structure, chemical bonding, high thermal shock resistance, and proper installation and maintenance. By working together, these factors create a robust and impermeable barrier that safeguards the underlying substrate from the corrosive effects of slag.
- Q:What are the specific requirements of monolithic refractories for continuous casting applications?
- To withstand the extreme temperatures and thermal shock conditions experienced during continuous casting, monolithic refractories have specific requirements. First and foremost, these refractories must possess high thermal conductivity, enabling them to efficiently transfer heat away from the molten metal and maintain a stable casting temperature. This is crucial in preventing the formation of defects such as cracks, hot spots, and uneven solidification in the cast product. Secondly, monolithic refractories for continuous casting applications need to exhibit high refractoriness. This means they can endure the high temperatures of the molten metal without melting or deforming, ensuring the refractories can provide a protective lining and maintain their structural integrity throughout the casting process. In addition, these refractories must demonstrate excellent resistance to thermal shock. The continuous casting process involves rapid cooling and heating cycles, resulting in significant temperature differentials and inducing thermal stresses. Monolithic refractories with low thermal expansion and high thermal shock resistance can endure these conditions without cracking or spalling. Moreover, good erosion and corrosion resistance are vital requirements for monolithic refractories in continuous casting applications. The molten metal and slag can be highly corrosive and abrasive, causing wear and chemical attack on the refractory lining. Therefore, 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 possess good workability and ease of installation. This allows for efficient and precise lining installation, minimizing downtime during maintenance or repairs. Overall, the specific requirements for monolithic refractories in continuous casting encompass high thermal conductivity, refractoriness, thermal shock resistance, erosion and corrosion resistance, as well as good workability. Fulfilling these requirements guarantees that the refractories effectively safeguard the casting equipment and maintain the quality of the cast products.
- Q:How do monolithic refractories resist chemical corrosion in iron and steel applications?
- Due to their unique characteristics and composition, monolithic refractories demonstrate high resistance to chemical corrosion in iron and steel applications. This resistance is attributed to various factors. One crucial factor is the utilization of top-notch raw materials. Typically, monolithic refractories are crafted from high-alumina or alumina-silica aggregates, which possess excellent resistance to chemical reactions. These aggregates are carefully selected to withstand the harsh conditions encountered in iron and steel applications, including exposure to molten metal, slag, and various chemical compounds. Furthermore, the binders employed in monolithic refractories play a vital role in their resistance to chemical corrosion. Common binders encompass clay, calcium aluminate cement, or colloidal silica. These binders not only hold the refractory materials together but also provide extra protection against chemical attack. They create a dense and impermeable structure, preventing corrosive substances from penetrating the refractory lining. Additionally, monolithic refractories often incorporate additives that enhance their chemical resistance. These additives, comprising antioxidants, anti-spalling agents, and various compounds, further safeguard the refractory lining from chemical attack. They neutralize corrosive elements, inhibit the formation of harmful compounds, and reduce the overall corrosion rate. Moreover, the unique installation method of monolithic refractories also contributes to their resistance to chemical corrosion. Unlike traditional brick refractories, monolithic refractories are installed as a single, continuous lining. This eradicates the need for joints or gaps that could potentially serve as weak points for chemical penetration. The monolithic nature of these refractories ensures a tight and seamless lining, reducing vulnerability to chemical attack. In summary, the combination of high-quality raw materials, effective binders, and beneficial additives, along with the monolithic installation technique, endows monolithic refractories with exceptional resistance to chemical corrosion in iron and steel applications. This resistance enables them to endure the harsh conditions encountered in these industries, ensuring the durability and efficiency of the refractory lining.
- Q:What are the recommended drying procedures for monolithic refractories?
- The recommended drying procedures for monolithic refractories typically involve a gradual and controlled process to ensure the refractory material is properly cured and hardened. This typically includes a pre-drying phase where the refractory is heated slowly to remove any residual moisture. After pre-drying, a gradual increase in temperature is applied to further remove moisture and allow for proper chemical reactions to occur within the refractory. It is important to closely follow manufacturer guidelines and consider factors such as refractory thickness, ambient humidity, and available drying equipment to determine the specific drying procedures for each application.
- 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:What are the main factors affecting the erosion resistance of monolithic refractories?
- The erosion resistance of monolithic refractories is influenced by several key factors. These factors include the chemical composition of the refractory material, the microstructure of the material, the temperature and environment in which it is used, and the mechanical properties of the material. The chemical composition of the monolithic refractory plays a crucial role in its erosion resistance. Certain chemical elements and compounds can enhance the resistance of the refractory to erosion, while others may make it more susceptible. For example, the addition of alumina (Al2O3) in the refractory composition can improve its resistance to erosion, as it forms a protective layer on the surface. On the other hand, the presence of impurities or excess amounts of certain elements can weaken the refractory and increase its susceptibility to erosion. The microstructure of the monolithic refractory is another important factor affecting erosion resistance. The refractory's microstructure refers to the arrangement and distribution of its constituent particles. A well-structured microstructure with a uniform distribution of particles can provide better erosion resistance as it ensures a more even distribution of load during exposure to erosive forces. Conversely, a poorly structured microstructure with clusters or weak bonding between particles may lead to localized erosion and failure. The temperature and environment in which the refractory is used also significantly influence erosion resistance. High temperatures can cause thermal stresses, chemical reactions, and phase changes in the refractory material, all of which can affect its erosion resistance. Additionally, the presence of corrosive gases, liquids, or slags can accelerate erosion by promoting chemical reactions or attacking the refractory material, leading to its degradation. Lastly, the mechanical properties of the monolithic refractory, such as its strength, hardness, and toughness, contribute to erosion resistance. A refractory with higher mechanical strength and hardness can withstand erosive forces better than a weaker material. Similarly, a higher toughness helps the refractory resist cracking or spalling when subjected to impact or thermal shock, reducing its vulnerability to erosion. In summary, the erosion resistance of monolithic refractories is influenced by the chemical composition, microstructure, temperature and environment, and mechanical properties of the material. Understanding and optimizing these factors can help in developing refractories with improved erosion resistance for various industrial applications.
- Q:What are the main factors affecting the thermal conductivity of monolithic refractories?
- The thermal conductivity of monolithic refractories is affected by various factors. These include the composition of the refractory material, the density of the material, the porosity of the material, and the presence of any additives or impurities. The composition of the refractory material plays a significant role in determining its thermal conductivity. Different types of refractory materials, such as alumina-based, silica-based, or magnesia-based, exhibit different thermal conductivities due to their distinct chemical compositions. Materials with higher alumina content generally display higher thermal conductivities compared to those with higher silica content. The density of the refractory material also impacts its thermal conductivity. Materials with higher densities generally exhibit higher thermal conductivities because the closely packed particles enable more efficient heat transfer. Conversely, materials with lower densities tend to have lower thermal conductivities as the presence of air pockets or voids hinders heat transfer. Another crucial factor is the porosity of the refractory material. Porosity refers to the presence of small pores or spaces within the material. Higher porosity leads to lower thermal conductivity as the air or gas trapped within the pores acts as an insulator, reducing the material's ability to conduct heat. Therefore, materials with lower porosity tend to have higher thermal conductivities. The presence of additives or impurities in the refractory material also affects its thermal conductivity. Certain additives or impurities, such as carbon or metallic oxides, can either enhance or inhibit heat transfer in the material. For example, the addition of carbon can increase thermal conductivity due to its high thermal conductivity, while the presence of metallic oxides may decrease thermal conductivity due to their lower thermal conductivities. In conclusion, the thermal conductivity of monolithic refractories is influenced by factors such as composition, density, porosity, and the presence of additives or impurities. Understanding and controlling these factors are crucial in designing and selecting refractory materials with optimal thermal conductivity for specific applications.
We are an industrial enterprise of refractories integrating the scientific research, design, production and engineering service. With first-class quality of products, high-efficient and prompt after-sale service, our products are not only well sold in many domestic large steel enterprises and coking enterprises, but also widely exported to more than 23 countries and regions.
1. Manufacturer Overview |
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|---|---|
| Location | Henan, China |
| Year Established | 2007 |
| Annual Output Value | Above US$ 200 Million |
| Main Markets | North America;Asia;Western Europe;Africa;Russia;Middle East |
| Company Certifications | ISO 9001:2008 |
2. Manufacturer Certificates |
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| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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|---|---|
| a)Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 20% - 30% |
| No.of Employees in Trade Department | 10-20 People |
| Language Spoken: | English; Chinese |
| b)Factory Information | |
| Factory Size: | Above 150,000 square meters |
| No. of Production Lines | Above 10 |
| Contract Manufacturing | Installation guide, OEM Service Offered |
| Product Price Range | High; Average |
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Monolithic Refractories for Iron and Steel Industry - Painting Material for Tundish
- Ref Price:
-
$553.11 - 676.03
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 Mt m.t.
- Supply Capability:
- 5000 Tons Per Month 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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