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Zirconia Metering Upper Nozzles

Brand name: LMM YOTAI
Packing Details : Wooden box with fumigation or Wooden Fram
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight
Application: For tundish

LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

The application of this products accomplish the quick exchange of SEN, extends service life of tundish and decreases production cost.

The bore of tundish nozzle is sintered zirconia and wholely in layed , which has better anti-corrosion and anti-erosion property, and extends working duration of tundish and have better cooperation with stoppers. There fore it can meet different continuous casting levels.

1.Alumina-graphite seat with perfect anti-thermal shock property.

2.The bore adopts sintered zirconia materials with perfect anti-corrosion and anti-erosion property

3.The end part adopts stablized zirconia product, has better anti-erosion property. and also perfect for steel flow control.

Item Seat Insert
Chemical Composition Al2O3 ≥60 ··—
ZrO2 ≥85
Bulk Density (g/cm3) ≥2.6 ≥3.8
Apparent Porosity(%) ≤18 ≤13.5
 Cold Crushing Strength(MPa) ≥25 ≥40
Modulus of Rupture-Room Temp (MPa) ≥8
Thermal shock resistance(sequence) ≥5 ≥5

A ladle nozzle, also known simply as a nozzle, is a crucial component in the process of steelmaking, particularly in continuous casting. Its purpose is to control the flow of molten steel from the ladle to the tundish during the continuous casting process. Here’s a breakdown of its purpose and function:

Flow Control: The ladle nozzle serves as a valve to regulate the flow rate of molten steel from the ladle into the tundish. This control is essential for maintaining a consistent flow of steel to the mold during continuous casting, ensuring proper solidification and quality of the cast product.

Prevention of Inclusions and Oxidation: Ladle nozzles are designed to minimize the introduction of inclusions (non-metallic particles) and oxidation into the molten steel stream. This is achieved by using refractory materials that resist erosion and minimize the risk of nozzle blockage, which could lead to defects in the cast product.

Temperature Control: The ladle nozzle helps to maintain the desired temperature of the molten steel as it passes from the ladle to the tundish. Proper temperature control is critical for achieving the desired casting conditions and preventing issues such as steel solidification before reaching the mold.

Uniform Distribution: The design of the ladle nozzle ensures uniform distribution of molten steel into the tundish, which is essential for achieving consistent casting quality across the entire width of the mold.

Minimization of Splashing and Air Entrapment: Ladle nozzles are engineered to minimize splashing and air entrapment during the transfer of molten steel. Splashing can cause safety hazards and lead to steel loss, while air entrainment can introduce defects into the cast product.

Compatibility with Continuous Casting Equipment: Ladle nozzles are designed to be compatible with the specific continuous casting equipment used in the steelmaking process. This includes considerations such as nozzle size, shape, and attachment mechanism to ensure seamless integration into the casting system.

EQUIPMENT

LMM YOTAI also equipped with world advanced facilities such as Laeis automatic hydraulic press HPF2500, Eirich R19 mixer, Shimadzu made XRF-1800 sequential X-Ray fluores-cence spectrometer, by focusing on product research and development and quality control. Our products also supply to Asia , Europe, America and Africa and other countries and regions.

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If you have purchasing needs, please contact our sales department

Tel:86-411 84174804

Emaillmm@magnesiacarbonbricklmm.com

Welsite:https://magnesiacarbonbricklmm.com/

Address:Dashiqiao City,LiaoNingProvince,China

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