Stopper Rod, Ladle Shroud and SEN

Place of Origin: China



Control the flowing rate; protect molten steel from reoxidation during continuous casting

A stopper rod is an isostatically produced one- piece alumina graphite rod. The

rate of flow of the molten steel is defined by the relative position of the stopper

nose to the seat of the tundish nozzle. Optimization of control is achieved through

the complementary geometries of the stopper nose and the tundish nozzle or

SEN seat. There is a wide variety of stopper nose profiles, each having different

degrees of sensitivity and controllability of steel flow to meet the wide range

of customer requirements.



The Ladle Shroud is designed to protect the steel from reoxidation when teeming

from the ladle to the tundish. The shape and design of the ladle shroud can vary

depending on individual casting conditions and customer requirements. Design

features include the provision to introduce argon via gas ports in the collar of the

ladle shroud, gaskets to improve the sealing between the ladle shroud and the

collector nozzle, increased wall thickness at the slag line to improve slag line

erosion, steel reinforced collar for added strengthen where mechanical conditions

particularly severe and the use of high integrity impermeable glazes which protect

the ladle shroud throughout its life. A recent addition to the range is a cold reusable

ladle shroud.



All SENs are custom designed to meet the needs of each steel plant. The complex

shapes are formed by isostatic pressing, which ensures homogeneity of chemical

and physical properties throughout the products. When required, SENs can be

insulated with a highly insulating ceramic fiber free cladding to increase thermal

shock resistance, the design of the insulation being configurable to specific customer

requirements.



There are no standard features for shrouds and nozzles, individual designs being

dependent on casting machine parameters such as strand size and shape, steel

grade and casting speed.