Monoblock Stopper (MBS) is an isostatically pressed refractory which is a critical element in the Continuous Casting of Steel where it is used to control the flow of steel from the “Tundish to Mould”.
The stopper nose design helps to achieve desired metallurgical needs by controlling mould level fluctuation, preventing vortex formation and reduce inclusions during steel casting.
Design and quality of Monoblock Stoppers have to be customized depending on the operational requirement of the steel plant. Monoblock Stoppers for high sequence casting have projected slag zone and special mix reinforcement for slag zone area.
Argon purging arrangement in MBS help to prevent air ingress and re-oxidation of steel and formation of clogging deposits.
MBS is fitted to the tundish stopper control mechanism by a rod which is fixed to the MBS body with a metallic or ceramic insert. The connection is made air tight by use of special gaskets which are under compression at any given temperature.
