Monoblock Stopper

Monoblock Stopper is used mainly for flow control on Molten Steel poured from tundish to mould. Monolithic Stopper is installed in the Tundish above the Sub Entry Nozzle and the gap between stopper head and Nozzle decide the throughput requirement of Molten Steel inside the Mould.

Monoblock stopper is an important component in the stopper system, which regulates the steel flow and enables precise control of the casting process. Here’s what you need to know about monoblock stopper rods. Monoblock stopper rods are equipped with a control mechanism, such as a pneumatically or hydraulically operated cylinder, that allows for precise adjustment of the stopper position. This mechanism enables operators to control the steel flow according to the casting requirements.

Monoblock Stopper Advantages:

Monoblock stopper rods are designed to withstand the high temperatures and thermal cycling encountered in the steelmaking process. They exhibit excellent refractory properties, including high-temperature resistance, thermal shock resistance, and resistance to erosion from the flowing molten steel.

Monoblock stopper is one of the most important control elements in the continuous casting production process.It is installed in the tundish and cooperates with the built-in immersion nozzle or tundish upper nozzle to control molten steel from the tundish to the crystallizer in the continuous casting process .

Monoblock stopper is installed in the tundish and cooperates with the built-in immersion nozzle or tundish upper nozzle to control molten steel from the tundish to the crystallizer in the continuous casting process Flow to ensure the stability of the molten steel flow surface in the crystallizer and the stability of the continuous casting process. Due to the non-replaceability of the stopper rod during use, once the stopper rod fails, the steel flow will be out of control or even stop pouring, which will interrupt the continuous casting and cause serious case accidents or huge economic losses.

Monoblock stopper rods are typically made from high-quality refractory materials, such as alumina, magnesia, or zirconia, depending on the specific application requirements. They are designed as a single-piece structure, hence the term “monoblock,” which ensures strength and integrity during operation.

Monoblock Stopper Features:

1. Excellent thermal shock resistance;
2.The good mechanical properties and resistance to vibration;
3.The molten steel and slag erosion resistance;
4. It must be with gas seal device. Long nozzle material generally have fused quartzose and aluminum carbonaceous.

Improvement measures to improve the monoblock stopper erosion:
1. Strictly control the slag from the big bag
2. Control the superheat of the tundish
3. Optimize the composition of the covering agent for molten steel in the tundish