Alumina-Spinel Castable for Ladle
- Ref Price:
-
$1,312.11 - 1,603.69
/ 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 Alumina-Spinel Castable for Ladle
ALRE alumina-spinel castable for ladle made strictly as per international standards, is known for its long operating life, excellent corrosion resistance and high refractoriness.
Technical data of Alumina-Spinel Castable for Ladle
Item | Alumina spinel castable | ||||
Al2O3 | % | ≥ | 72 | ||
MgO | % | ≥ | 10 | ||
CaO | % | — | |||
SiO2 | % | ≤ | 9 | ||
SiO2+ Fe2O3+ Al2O3 | % | ≤ | |||
Bulk density ≥ | g/cm3 | — | |||
C.C.S. (MPa) ≥ | 110℃×24hrs | 90 | |||
1500℃×3hrs | 100 | ||||
M.O.R.(MPa) ≥ | 110℃×24hrs | 11.5 | |||
1500℃×3hrs | 11.5 | ||||
Refractoriness (℃) ≥ | — | ||||
Grain size (mm) ≤ | — | ||||
Permanent linear change | 1500℃×2hrs | -0.2~0.35 | |||
1500℃×3hrs | — | ||||
Life time (hr) | — | ||||
Production line and Packing of Alumina-Spinel Castable for Ladle
Feature of Alumina-Spinel Castable for Ladle
Long operating life
Easy execution and mending
Excellent corrosion and scouring resistance of iron steel
Application of Alumina-Spinel Castable for Ladle
ALRE alumina-spinel castable could be used widely for lining of ladles in steel and iron industry.
- Q:What are the considerations for selecting monolithic refractories for ladles and tundishes?
- Some considerations for selecting monolithic refractories for ladles and tundishes include the specific temperature requirements, chemical composition of the molten metal, thermal shock resistance, erosion and corrosion resistance, mechanical strength, ease of installation and maintenance, and cost-effectiveness.
- Q:How are monolithic refractories inspected and tested for quality assurance?
- Monolithic refractories are inspected and tested for quality assurance through a series of rigorous processes to ensure their reliability and performance. These inspections and tests are crucial in maintaining consistent quality standards and identifying any potential defects or weaknesses in the refractory material. Firstly, visual inspections are conducted to check for any visible defects such as cracks, spalling, or signs of poor manufacturing. This step helps identify any obvious issues that may affect the refractory's performance. Next, physical properties such as density, porosity, and thermal conductivity are measured using specialized equipment. These measurements are compared against predetermined standards to ensure the refractory material meets the required specifications. Density and porosity are important indicators of the refractory's strength and resistance to heat and chemicals, while thermal conductivity determines its ability to transfer heat efficiently. In addition, mechanical tests are performed to assess the refractory's strength and resistance to mechanical stress. This involves subjecting the material to compressive, tensile, and flexural forces to evaluate its structural integrity and durability. To ensure the refractory's performance in high-temperature environments, thermal tests are conducted. These tests involve exposing the refractory to extreme temperatures and monitoring its behavior. Thermal expansion and shrinkage, resistance to thermal shock, and thermal cycling are some of the parameters evaluated during these tests. Chemical analysis is another important aspect of quality assurance for monolithic refractories. Samples of the refractory material are analyzed to determine their chemical composition and assess their resistance to various corrosive environments. This analysis helps ensure that the refractory is suitable for the specific applications it will be used in. Lastly, field tests may be conducted at actual operating sites to evaluate the refractory's performance under real-world conditions. These tests involve monitoring the refractory's behavior in terms of wear and tear, thermal insulation, and resistance to chemical attack. The results obtained from field tests are crucial in validating the refractory's performance and making any necessary adjustments to the manufacturing process. Overall, monolithic refractories undergo a comprehensive inspection and testing process, encompassing visual inspections, physical and mechanical tests, thermal analysis, chemical analysis, and field tests. This systematic approach ensures that the refractories meet the required quality standards, providing reliability and longevity in the demanding environments they are designed for.
- Q:How do monolithic refractories contribute to the overall efficiency of ladle transfer processes?
- The efficiency of ladle transfer processes is greatly improved by the use of monolithic refractories. These refractories are made from a single, uniform material, making them easy to install and maintain. This feature reduces downtime during ladle transfers, ultimately increasing productivity. One of the ways in which monolithic refractories enhance efficiency is through their high thermal conductivity. Ladle transfers involve the movement of molten metal, which generates a significant amount of heat. Monolithic refractories have exceptional heat resistance, allowing them to withstand the extreme temperatures of the molten metal. This property prevents refractory failure and extends the lifespan of the ladle, resulting in more efficient and uninterrupted ladle transfer operations. Furthermore, monolithic refractories provide superior corrosion resistance. The corrosive nature of molten metal can cause considerable damage to ladles over time. However, monolithic refractories are specifically designed to withstand chemical attacks from molten metal, preventing the degradation of the ladle's integrity. Consequently, ladles lined with monolithic refractories have a longer lifespan and require less frequent replacement, leading to cost savings and improved efficiency. Another factor contributing to the efficiency of ladle transfer processes is the ability of monolithic refractories to conform to complex shapes and designs. Ladles come in various sizes and shapes, and monolithic refractories can be customized to perfectly fit the dimensions of the ladle. This precise fit minimizes heat loss and maximizes energy efficiency during ladle transfers. Additionally, monolithic refractories offer excellent mechanical strength and resistance to thermal shock. Ladle transfer processes involve the handling and movement of ladles, subjecting refractories to mechanical stresses. The exceptional mechanical properties of monolithic refractories ensure their durability and prevent cracking or spalling, reducing the risk of refractory failure and enhancing the efficiency of ladle transfer operations. In conclusion, the efficiency of ladle transfer processes is improved by the use of monolithic refractories due to their high thermal conductivity, corrosion resistance, precise lining fit, and excellent mechanical properties. These refractories enhance the durability of ladles, reduce downtime, and improve energy efficiency, resulting in cost savings and increased productivity in the steelmaking industry.
- Q:What are the main challenges in designing the lining system with monolithic refractories?
- Achieving proper installation is one of the primary difficulties in designing the lining system using monolithic refractories. Skilled labor and precise application techniques are required for the installation, which can involve casting, gunning, or shotcreting. The performance and longevity of the lining system can be compromised if any errors or inconsistencies occur during installation. Ensuring sufficient bonding between the monolithic refractories and the existing structure presents another challenge. To prevent delamination or separation of the refractory material from the underlying surface, proper adhesion is crucial. Factors like surface preparation, temperature differences, and mechanical stress can affect the strength of the bond, necessitating careful consideration during the design phase. The compatibility of monolithic refractories with different operating conditions also poses a challenge. Refractory materials are exposed to extreme temperatures, chemical reactions, and thermal cycling, which can result in degradation and failure. Designing a lining system that can withstand these conditions requires a thorough understanding of the refractory properties and the specific requirements of the application. Furthermore, selecting the appropriate monolithic refractory material for a given lining system is a significant challenge. There are various types of monolithic refractories available, each with its own advantages and disadvantages. When choosing the most suitable material for the application, factors like temperature range, chemical composition, thermal conductivity, abrasion resistance, and thermal shock resistance must be taken into account. Lastly, maintaining the integrity of the monolithic refractory lining system throughout its lifespan is challenging. Regular inspections, repairs, and maintenance are necessary to address issues such as cracks, erosion, or spalling. Developing a comprehensive maintenance plan and ensuring access to skilled personnel for repairs are crucial aspects of designing a successful lining system with monolithic refractories.
- Q:How do monolithic refractories contribute to the overall efficiency of ladle refining processes?
- The overall efficiency of ladle refining processes is greatly enhanced by the use of monolithic refractories. Ladle refining, a critical step in steelmaking, involves the removal of impurities and the addition of alloying elements to achieve the desired steel properties. Unshaped refractory materials, known as monolithic refractories, offer numerous benefits that contribute to the efficiency of this process. To begin with, monolithic refractories provide excellent thermal insulation. As ladle refining processes involve high temperatures, it is crucial for the refractories to withstand and contain these temperatures. Monolithic refractories have a low thermal conductivity, which minimizes heat loss from the ladle. This insulation helps maintain the desired temperature within the ladle, enabling efficient refining and reducing the energy required for heating. Furthermore, monolithic refractories exhibit high resistance to chemical attack and erosion. During ladle refining, the steel is exposed to various chemical reactions and corrosive elements. Monolithic refractories are specifically designed to withstand these harsh conditions, effectively protecting the ladle from chemical attack and erosion. This resistance ensures that the refractories maintain their structural integrity, preventing any contamination of the steel and extending the lifespan of the ladle. Additionally, monolithic refractories offer easy installation and repair. Unlike traditional brick refractories, monolithic refractories can be applied as a single, homogeneous layer, eliminating the need for complex bricklaying techniques. This ease of installation reduces downtime during ladle maintenance and repair, thus improving the overall efficiency of the refining process. Moreover, monolithic refractories can be easily patched or repaired as needed, further minimizing downtime and ensuring continuous operation. In conclusion, monolithic refractories play a significant role in enhancing the overall efficiency of ladle refining processes. Their exceptional thermal insulation properties, resistance to chemical attack and erosion, and ease of installation and repair all contribute to improving the efficiency and productivity of ladle refining. By providing a reliable and durable lining for the ladle, monolithic refractories help maintain the desired temperature, prevent contamination, and minimize downtime, ultimately resulting in improved quality and yield of the refined steel.
- Q:How do monolithic refractories withstand thermal shock?
- Monolithic refractories are able to withstand thermal shock due to their unique properties and composition. Thermal shock occurs when there is a rapid change in temperature, causing stress and potential damage to the refractory material. However, monolithic refractories are designed to have high thermal shock resistance, and this is achieved through several mechanisms. Firstly, the composition of monolithic refractories includes materials with low thermal expansion coefficients. This means that they have a minimal change in size or volume when exposed to different temperatures. This property allows the refractory material to withstand thermal shock by minimizing the stress caused by temperature fluctuations. Secondly, monolithic refractories have excellent thermal conductivity. This property allows them to efficiently transfer heat away from the hot areas, preventing localized overheating and reducing the risk of thermal shock. The rapid dissipation of heat helps to maintain a more uniform temperature distribution within the refractory material, thus reducing the chances of cracking or spalling. Additionally, the binding agents used in monolithic refractories play a crucial role in their thermal shock resistance. These binders provide strength to the refractory material and help to maintain its integrity during thermal cycling. The binders also contribute to the refractory's resistance to thermal shock by reducing the permeability of the material, preventing the penetration of hot gases or liquids that could cause damage. Moreover, the installation technique of monolithic refractories is an important factor in their ability to withstand thermal shock. Monolithic refractories are typically applied as a single, continuous layer, eliminating the joints and seams that can be weak points in other refractory systems. This seamless installation method ensures better thermal shock resistance as there are no weak points for cracks to propagate. In summary, monolithic refractories withstand thermal shock through a combination of factors including their low thermal expansion coefficients, high thermal conductivity, suitable binding agents, and seamless installation techniques. These properties and design considerations allow monolithic refractories to effectively handle rapid changes in temperature and maintain their structural integrity, making them ideal for applications that involve thermal cycling and extreme temperature variations.
- Q:What are the quality control measures for monolithic refractories in the iron and steel industry?
- The quality control measures for monolithic refractories in the iron and steel industry include strict material selection, thorough testing of raw materials, regular inspection and maintenance of refractory linings, and continuous monitoring of performance during operation. Additionally, adherence to industry standards and specifications, implementation of quality management systems, and collaboration with suppliers and customers to address any quality issues are also important measures in ensuring the quality of monolithic refractories in the iron and steel industry.
- Q:How do monolithic refractories contribute to energy efficiency in the iron and steel industry?
- Various mechanisms are employed by monolithic refractories to enhance energy efficiency in the iron and steel industry. The first mechanism is their exceptional thermal insulation properties, which minimize heat loss from furnaces and high-temperature equipment. This efficient utilization of heat generated during production leads to significant energy savings. Another important feature of monolithic refractories is their ability to withstand rapid temperature changes without cracking or spalling, known as thermal shock resistance. This quality is crucial in an industry where extreme temperature variations are common. By maintaining their structural integrity, these refractories prevent heat leakage and ensure effective energy utilization. Furthermore, monolithic refractories contribute to energy efficiency by reducing downtime and improving operational efficiency. Their easy installation and repair result in shorter maintenance cycles, minimizing the time required for furnace maintenance. This allows for continuous operation and uninterrupted energy utilization. Additionally, their high durability reduces the need for frequent replacements, further enhancing energy efficiency by reducing material and energy waste associated with regular repairs. In conclusion, monolithic refractories play a significant role in enhancing energy efficiency in the iron and steel industry. Their properties, such as thermal insulation, thermal shock resistance, and ease of installation and repair, ensure effective energy utilization and substantial energy savings. Improved operational efficiency and reduced downtime further contribute to overall energy efficiency.
- Q:How are monolithic refractories used in the repair and maintenance of ladle and tundish covers?
- Monolithic refractories are commonly used in the repair and maintenance of ladle and tundish covers due to their excellent thermal resistance and durability. Ladles and tundishes are crucial components in the steelmaking process, and their covers play a vital role in the containment of molten metal and the prevention of heat loss. When ladle and tundish covers are subjected to high temperatures and thermal cycling, they can experience wear and tear, leading to cracks, spalling, or even complete failure. This is where monolithic refractories come into play. Monolithic refractories are unshaped refractory materials that can be easily molded and applied to the damaged areas of ladle and tundish covers. They can be cast, gunned, or sprayed onto the surface, allowing for quick and efficient repairs. These refractories are typically composed of a matrix material, such as alumina, silica, or magnesia, along with various additives and bonding agents. The specific composition depends on the application requirements and the severity of the operating conditions. The repair process begins by identifying the damaged areas of the ladle or tundish cover. Any loose or damaged refractory material is removed, and the surface is prepared for the application of the monolithic refractory. This may involve cleaning, roughening, or even preheating the surface, depending on the specific requirements. The monolithic refractory is then mixed with water or a suitable binder to form a workable consistency. It is then applied to the damaged areas using the appropriate method, such as casting or spraying. After application, the refractory material is allowed to dry and cure, typically through a controlled heating process. Once cured, the monolithic refractory forms a strong and durable lining that can withstand the high temperatures, thermal cycling, and chemical reactions that occur during ladle and tundish operation. It provides excellent thermal insulation, preventing heat loss and reducing energy consumption. Furthermore, monolithic refractories offer superior resistance to slag, metal penetration, and erosion, ensuring extended service life for ladle and tundish covers. They also have good thermal shock resistance, allowing them to withstand rapid temperature changes without cracking or spalling. In summary, monolithic refractories are essential in the repair and maintenance of ladle and tundish covers due to their thermal resistance, durability, and ease of application. Their ability to withstand high temperatures, thermal cycling, and chemical reactions ensures the integrity and efficiency of ladle and tundish operations in the steelmaking industry.
- Q:How do monolithic refractories perform in reheating furnace roof applications?
- Monolithic refractories are highly effective in reheating furnace roof applications. These refractories are known for their excellent thermal shock resistance, which is crucial in the extreme temperature conditions inside a reheating furnace. They can withstand rapid temperature changes without cracking or spalling, ensuring the longevity and durability of the furnace roof. Additionally, monolithic refractories offer superior insulation properties, which help in maintaining the desired temperature inside the furnace. These refractories have low thermal conductivity, preventing heat loss and reducing energy consumption. This not only improves the energy efficiency of the furnace but also contributes to cost savings for the operators. Furthermore, monolithic refractories provide excellent resistance to chemical attacks from gases and molten metals present in the furnace environment. They are designed to withstand corrosive atmospheres and prevent the penetration of harmful substances, thus prolonging the life of the roof refractory. Moreover, monolithic refractories offer easy installation and repair options. Their ability to be cast or gunned in place allows for a seamless and precise application to the roof structure. This feature also enables quick and efficient repairs or maintenance, minimizing downtime and production losses. In conclusion, monolithic refractories are a reliable and efficient choice for reheating furnace roof applications. Their exceptional thermal shock resistance, insulation properties, chemical resistance, and ease of installation make them an ideal solution for maintaining the structural integrity and performance of the furnace roof.
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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Alumina-Spinel Castable for Ladle
- Ref Price:
-
$1,312.11 - 1,603.69
/ 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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