Upper & lower nozzles For Ladle

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 10 set

Supply Capability:: 50000 set/month

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Product Description:

1)High Temperature Burnt Slide Plate

This product adopts tabular alumina, carbonaceous material and zirconia-containing material as main raw materials, adds in high performance antioxidants, uses phenolic resin as binder, formed under high-pressure and burned under high temperature. Mainly used in large and medium-sized ladle.

Physical and chemical properties:

Chemical and Physical Properties	Al-C Slide Gate Plate					Al-Zr-C Slide Gate Plate
Chemical and Physical Properties	LQSP-70	LQSP -75	LQSP -80	LQSP -85	LQSP -86	LQSP -70	LQHSP-75	LQHSP -77
Al₂O₃,%	70	75	80	85	86	70	75	77
C,%	7	7	5	5	4	7	7	7
ZrO₂,%	-	-	-	-	-	6	6	2.5
A.P.,% max	10	10	10	10	7	10	10	10
B.D.,g/cm³	2.8	2.9	2.9	3.0	2.95	3.00	3.05	2.90
C.C.S., MPa min	65	70	100	100	100	110	115	100

2) Low Temperature Burnt Slide Plate

Tabular alumina, zirconia-containing material and spinel as major raw materials, adding in special metal, using phenolic resin as binder, being burned under low temperature during producing process. Mainly used in small and medium-sized ladles.

Physical and chemical properties:

Chemical and Physical Properties	Low Temperature Burnt Slide Gate Plate
Chemical and Physical Properties	LQLTSP-70	LQLTSP-75	LQLTSP-80	LQLTSP-85	LQLTSP-86
Al₂O₃,% min	70	75	80	85	86
C,%	≥5	≥5	≥5	≥4	4
A.P.,% max	10	10	10	8	7
B.D.,g/cm	2.9	2.95	3.00	3.10	2.95
C.C.S., MPa ≥	90	90	100	120	100

3) Unburned Slide Plate

Without being burned, tar impregnated and distilled, simple processing. Mainly used in small and medium-sized ladles.

Physical and chemical properties:

Chemical and Physical Properties	Al-C Slide Gate Plate
Chemical and Physical Properties	LQUSP-70	LQUSP-75	LQUSP-80	LQUSP-85	LQUSP-86
Al₂O₃,%	70	75	80	85	86
C,%	7	7	5	5	4
A.P.,% max	10	10	8	10	7
B.D. g/cm³ min	2.8	2.9	3.0	3.0	2.95
C.C.S., MPa min	65	70	100	100	100

Q:How long is the lifespan of monolithic refractories in iron and steel applications?: The lifespan of monolithic refractories in iron and steel applications can vary depending on several factors such as the specific type of refractory material used, the operating conditions, and the maintenance practices. However, on average, monolithic refractories in iron and steel applications can last anywhere from a few months to several years.

Q:What are the key factors affecting the installation and curing of monolithic refractories?: The installation and curing of monolithic refractories can be affected by several important factors: 1. Material selection: Choosing the right monolithic refractory material is crucial as it determines how it will be installed and cured. Different materials have different requirements, so it is important to select the appropriate material for the specific application. 2. Surface preparation: Properly preparing the surface is essential for the successful installation and curing of monolithic refractories. The surface must be clean, free from contaminants, and properly roughened to ensure good adhesion of the refractory material. 3. Mixing and proportioning: How the refractory material is mixed and proportioned plays a significant role in its installation and curing. Following the manufacturer's instructions for mixing ratios and ensuring thorough mixing is important to achieve a uniform mixture. 4. Application technique: The technique used to apply the monolithic refractory material can greatly impact its installation and curing. Employing proper application techniques, such as gunning, casting, or ramming, is necessary to ensure uniformity and proper bonding with the substrate. 5. Temperature control: Controlling the temperature during installation and curing is critical for achieving the desired properties in the monolithic refractory. The curing process should be carried out at the recommended temperature, and sudden temperature changes should be avoided to prevent thermal stresses. 6. Moisture content: The moisture content of the refractory material and the surrounding environment can affect its installation and curing. Excessive moisture can cause shrinkage, cracking, or poor bonding, while insufficient moisture can hinder proper curing. Maintaining the optimum moisture content for the specific refractory material is important. 7. Curing time: The required curing time for monolithic refractories varies depending on the material and application. It is crucial to follow the recommended curing time to allow for proper strength development and dimensional stability. 8. Environmental conditions: Environmental factors, such as humidity, temperature, and air circulation, can influence the installation and curing of monolithic refractories. It is important to maintain suitable environmental conditions to facilitate proper drying and curing. In conclusion, understanding and addressing these key factors are essential to ensure the successful installation and curing of monolithic refractories, leading to improved performance and longevity of the refractory lining.

Q:What are the factors affecting the lifespan of monolithic refractories?: There are several factors that can significantly affect the lifespan of monolithic refractories. 1. Temperature: One of the most critical factors is the operating temperature. Monolithic refractories are designed to withstand high temperatures, but prolonged exposure to extreme temperatures can cause thermal shock and lead to premature failure. 2. Thermal cycling: Frequent temperature fluctuations, known as thermal cycling, can also shorten the lifespan of monolithic refractories. The expansion and contraction of the refractory material can create stress, resulting in cracking and degradation over time. 3. Chemical environment: The chemical environment in which the monolithic refractories are used plays a crucial role in their lifespan. Exposure to corrosive gases, acids, alkalis, or molten metals can cause chemical reactions that degrade the refractory material. 4. Mechanical stress: Mechanical stress, such as abrasion, impact, and vibration, can weaken monolithic refractories and shorten their lifespan. This is especially relevant in industries with high mechanical activity, such as steelmaking or cement production. 5. Installation and maintenance: Proper installation and regular maintenance are essential for maximizing the lifespan of monolithic refractories. Poor installation techniques or neglecting maintenance can result in weak joints, inadequate anchoring, or the growth of cracks, leading to premature failure. 6. Quality of refractory material: The quality and composition of the monolithic refractory material can significantly impact its lifespan. Higher-quality materials with better resistance to temperature, chemical attacks, and mechanical stress tend to have longer lifespans. 7. Design and engineering: The design of the refractory lining and its engineering considerations, such as thickness, shape, and reinforcement, also influence the lifespan of monolithic refractories. Proper design can distribute stress more evenly, reduce thermal gradients, and improve overall performance and durability. 8. Operating conditions: The way monolithic refractories are operated and handled can affect their lifespan. Factors such as rapid temperature changes, improper cooling or heating procedures, or excessive thermal cycling can all contribute to premature failure. In summary, the lifespan of monolithic refractories is influenced by various factors, including temperature, thermal cycling, chemical environment, mechanical stress, installation and maintenance practices, quality of refractory material, design and engineering considerations, and operating conditions. Proper consideration and management of these factors are essential for maximizing the lifespan of monolithic refractories.

Q:How do monolithic refractories withstand the alkali attacks in cement kiln applications?: Monolithic refractories withstand alkali attacks in cement kiln applications due to their unique composition and properties. These refractories are made of high-quality materials such as silica, alumina, and magnesia, which have excellent resistance to alkali reactions. Additionally, they are designed to have dense and compact structures, limiting the penetration of alkali compounds into the refractory material. The dense structure also helps in reducing the permeability of the refractory, preventing alkali infiltration. Moreover, monolithic refractories often have a high melting point, which further enhances their resistance against alkali attacks. Overall, the combination of material composition, compact structure, and high melting point enables monolithic refractories to withstand the harsh alkali environment of cement kilns.

Q:What are the typical properties of monolithic refractories used in iron and steel industry?: Monolithic refractories used in the iron and steel industry typically possess high thermal conductivity, excellent resistance to thermal shock, and high mechanical strength. They are also known for their ability to withstand high temperatures and harsh chemical environments. Additionally, these refractories exhibit good erosion and abrasion resistance, low porosity, and high density, making them ideal for lining furnaces, ladles, and other equipment in the iron and steel production process.

Q:How do monolithic refractories contribute to the overall safety of iron and steel operations?: Monolithic refractories play a crucial role in ensuring the overall safety of iron and steel operations. These refractories are designed to withstand extreme temperatures, chemical reactions, and mechanical stresses, providing a protective barrier to the furnaces, ladles, and other equipment used in these operations. By maintaining the integrity of the refractory lining, monolithic refractories prevent leaks, minimize the risk of thermal shock, and reduce the chances of equipment failure or accidents. This helps to safeguard the workers, prevent damage to the infrastructure, and ensure the uninterrupted production of iron and steel, thus contributing to the overall safety of the operations.

Q:How do monolithic refractories enhance the performance and longevity of furnaces?: Monolithic refractories enhance the performance and longevity of furnaces by providing superior thermal insulation properties, excellent resistance to thermal shocks, and high mechanical strength. They create a seamless lining, eliminating joints and weak points, which reduces heat loss and prevents the penetration of molten metals or aggressive chemicals. Moreover, monolithic refractories offer flexibility in design and installation, allowing for customized shapes and sizes to maximize the efficiency of the furnace. Overall, their use enhances the overall heat transfer, reduces energy consumption, and extends the lifespan of the furnace.

Q:How do monolithic refractories enhance the efficiency of reheating furnaces?: Monolithic refractories play a crucial role in enhancing the efficiency of reheating furnaces in several ways. Firstly, monolithic refractories offer excellent thermal insulation properties, which minimize heat losses from the furnace. This insulation helps to maintain a high and consistent temperature inside the furnace, reducing the need for excessive fuel consumption and improving energy efficiency. Secondly, monolithic refractories have high thermal conductivity, which allows for efficient heat transfer within the furnace. This means that the heat generated by the burners can be evenly distributed throughout the furnace, ensuring uniform heating of the materials being reheated. This uniform heating not only enhances the overall efficiency but also helps to prevent hot spots or cold spots, which can negatively impact the quality of the reheated products. Moreover, monolithic refractories have excellent resistance to thermal shock and mechanical stress. Reheating furnaces often undergo rapid temperature changes and are subjected to intense mechanical forces due to the movement of materials and the operation of various equipment. The use of monolithic refractories helps to prevent cracks, spalling, and other forms of refractory damage, thus ensuring the longevity and continuous operation of the furnace without interruptions for repairs. Additionally, monolithic refractories offer ease of installation, repair, and maintenance compared to traditional brick refractories. Their ability to be cast or sprayed onto the furnace lining allows for a more precise and seamless installation, reducing the risk of weak joints or gaps that could compromise the furnace's efficiency. Furthermore, in case of any damage or wear, monolithic refractories can be easily repaired or patched up, minimizing downtime and improving the overall productivity of the furnace. In summary, the use of monolithic refractories in reheating furnaces enhances efficiency by providing effective thermal insulation, facilitating uniform heat distribution, resisting thermal shock and mechanical stress, and allowing for easier installation and maintenance. These benefits contribute to lower energy consumption, improved product quality, increased furnace durability, and reduced operational costs.

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.

Q:How do monolithic refractories perform in aluminum holding furnace applications?: The use of monolithic refractories in aluminum holding furnace applications has been proven to be highly efficient and effective. These refractories are designed specifically to withstand the extreme temperatures and chemical environments found in these furnaces. One major advantage of monolithic refractories is their ability to create a continuous and seamless lining in the furnace. This eliminates the need for individual bricks or tiles, reducing the risk of thermal shock and cracking. The absence of joints also minimizes the likelihood of molten aluminum leaking through the lining, ensuring better containment and heat retention. Monolithic refractories also provide excellent thermal insulation properties, which are essential in aluminum holding furnaces. They have low thermal conductivity, helping to reduce heat loss and maintain a stable temperature within the furnace. This leads to improved energy efficiency and lower operating costs. Furthermore, monolithic refractories have exceptional resistance to corrosion and chemical attack from molten aluminum and its by-products, such as dross and fluxes. This resistance ensures a longer lifespan for the refractory lining, reducing the need for maintenance and downtime. In addition, monolithic refractories are known for their easy installation and repair. They can be installed quickly and easily, requiring minimal downtime for furnace maintenance. If any localized damage or wear occurs, repairs can be efficiently made by patching or spraying the affected area. In conclusion, monolithic refractories are an excellent choice for aluminum holding furnace applications due to their seamless lining, thermal insulation properties, resistance to corrosion, and easy installation and repair. These refractories significantly enhance the overall performance and efficiency of aluminum holding furnaces.

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