What is the types of Monoblock Stopper?

According to quality of materials, monoblock stopper of our company can be classified into alumina carbon, aluminum-zirconium carbon and aluminum-magnesia carbon. 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 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 Advantages:

1.Oxidation resistant glaze layer to prevent the material oxidation effectively.
2.Standard high quality Al-C materials having high corrosion and thermal shock resistance.
3.Standard Al-C head materials have good slag corrosion resistance.
4.Spinel head materials have exceptional good resistance to slag corrosion.
5.Standard Mg-C head materials have good slag corrosion resistance for processing steel with Ca.
6.High quality Zr-based materials assure good corrosion resistance at the slag line.

Monoblock Stopper Features

Argon injection structure depending on customer specifications.
Ceramic glaze layer to prevent the material oxidation effectively.
Ceramic fiber blanket to prevent heat lost during casting.
High quality AL-C materials having high corrosion and thermal shock resistance.
High quality Zr-based composite to provide high corrosion resistance at the slag line.
Non-graphite based materials to meet the requirements of producing low carbon steel, silicon steel and high purity steel
Good erosion resistance
Anti-erosion performance
Stable flow control during casting

Monoblock Stopper Functions:

Mono-block stopper is mainly used for the tundish, which performs a switching function. The steel flow is controlled by the position of the head of mono-block stopper to tundish.

Meantime, the argon hole can be blown through the argon hole of the integral plug to prevent the nozzle from being clogged. There are several advantages by using the mono-block stopper:

1. Safer.
2. Reduce the nozzle blockage accident.
3. After the argon is blown by the stopper rod, the total amount of inclusions in the slab is greatly reduced, and the quality of the slab is improved.
4. As the accident rate decreases, the output of continuous casting machines is relatively increased.

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