PRODUCTS
Guoliang company owns three wholly-owned subsidiaries and one branch. It is a high-tech enterprise specializing in the integrated solution of refractories for high-temperature industry, providing customers with general contracting services and refractory products.
Nozzle brick is made by unburned production process by using high-purity alumina and carbon as raw materials, adding phenolic resin as binder.
GUOLIANG inner and collector nozzles are refractory components designed for steel ladle flow-control systems. Manufactured from high-purity alumina-carbon materials through an unburned production process, they combine good corrosion resistance, thermal shock resistance and dimensional stability for demanding steelmaking conditions.
The ladle inner nozzle, also called a ladle upper nozzle, is installed in the ladle bottom and directs molten steel into the sliding gate system. The collector nozzle, positioned below the slide gate plate, guides the controlled steel stream toward the ladle shroud or downstream casting system.
Together with the sliding gate plates and well block, these refractory nozzles help maintain a stable molten steel flow path during continuous casting.
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PRODUCT ADVANTAGES
Good corrosion resistance and excellent thermal shock resistance
TECHNICAL SPECIFICATIONS
|
Index |
SK-1 |
SK-2 |
|
Al2O3 % ≥ |
80 |
70 |
|
C % ≥ |
5.0 |
4.0 |
|
Apparent porosity % ≤ |
10 |
11 |
|
Bulk density g/cm3 ≥ |
2.92 |
2.90 |
Although both products are part of the ladle flow-control system, they perform different functions.
Inner Nozzle / Upper Nozzle
Collector Nozzle / Lower Nozzle
The inner nozzle, slide gate plate and collector nozzle therefore work together as an integrated ladle sliding gate refractory system.
Inner and collector nozzles operate under severe thermal and mechanical conditions. Molten steel flow, temperature fluctuations and repeated casting operations can gradually cause bore erosion, cracking or refractory wear.
GUOLIANG refractory nozzles are designed with the following performance considerations:
These characteristics make our ladle refractory nozzles suitable for continuous casting operations where consistent flow control and stable refractory performance are required.
GUOLIANG inner and collector nozzles can be used in different steelmaking and continuous casting operations, including:
Different refractory grades and nozzle dimensions can be selected according to steel grade, ladle capacity, casting temperature and required service conditions.
Choosing the right ladle inner nozzle or collector nozzle requires more than matching the outside dimensions. Buyers should consider the complete casting conditions.
Provide the overall diameter, height, bore diameter and other key dimensions. Existing drawings are particularly useful when replacing refractory components in an installed sliding gate system.
Carbon steel, alloy steel and special steel may impose different corrosion and erosion conditions on refractory components.
The operating temperature influences refractory wear and thermal shock conditions and should be considered when choosing the appropriate material grade.
The inner nozzle, sliding gate plate and collector nozzle must match the existing ladle gate mechanism. Dimensional compatibility is important for installation and stable operation.
Tell us the current nozzle performance, casting sequence or required service target. This information helps determine the appropriate refractory composition and structure.
GUOLIANG can manufacture custom inner nozzles and collector nozzles according to customer drawings and operating requirements.
Customization can include:
If you are replacing an existing nozzle, send us the original refractory drawing or product dimensions. For new steel plant projects, our team can also evaluate the operating conditions and help select a suitable refractory solution.
GUOLIANG supplies refractory products for steel ladle systems, including inner nozzles, collector nozzles, sliding gate plates, well blocks and other ladle refractories.
For steel plants, refractory distributors and engineering projects, we can support both replacement requirements and project-based refractory supply with dimensional matching and material selection.
A ladle inner nozzle, also known as an upper nozzle, is installed at the bottom of the steel ladle. It directs molten steel from the ladle into the sliding gate system and forms an important part of the ladle flow-control assembly.
A ladle collector nozzle, sometimes called a lower nozzle, is installed beneath the slide gate plate. It collects molten steel passing through the gate and directs it toward the ladle shroud or subsequent casting system.
GUOLIANG's current inner and collector nozzle grades use alumina-carbon refractory materials. The existing SK-1 and SK-2 grades are available with different Al₂O₃ and carbon contents to meet different operating requirements.
Yes. Dimensions, bore size, shape and refractory specifications can be produced according to customer drawings and operating requirements.
We recommend providing the nozzle drawing, dimensions, bore diameter, steel grade, casting temperature, slide gate system and expected service conditions.
Send us your nozzle drawing, dimensions, steel grade and casting conditions. GUOLIANG can help match the appropriate inner nozzle or collector nozzle with your existing ladle sliding gate system and provide a quotation for standard or custom requirements.
If you are interested in any of our products or would like to make your customized order, please feel free to contact us. We are looking forward to establish successful business relations with you.
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