Tundish steel making role and process requirements

 

The tundish is a refractory container, and the molten steel poured from the ladle is distributed to each mold through the tundish nozzle. Continuous casting has the advantages of increasing metal yield and reducing energy consumption, simplifying the steelmaking production process, shortening the process, and significantly improving production efficiency.

Tundish as a metallurgical reactor is an important part of improving steel output and quality. Whether for the smooth progress of continuous casting operations or for ensuring that the quality of molten steel meets needs, the role of the tundish cannot be ignored.

It is generally believed that the intermediate package plays the following roles:

1. Shunting function.

For the multi-stream continuous casting machine, the molten steel is divided by the multi-nozzle tundish.

2. Continuous pouring effect.

In the multi-furnace continuous pouring, the molten steel stored in the tundish plays a role as a link when changing the steel drum.

3. Decompression and flow stabilization.

The height of the liquid level in the steel drum is 5-6m, the impact force is great, and the range of change is also great during the casting process. The liquid level of the tundish is lower than that of the ladle, and the change range is much smaller, so it can be used to stabilize the molten steel casting process and reduce the erosion of the solidified billet shell of the mold by the steel flow.

4. Protective effect.

Through the covering agent of the liquid surface of the tundish, the shroud and other protective devices, the molten steel in the tundish is reduced from external pollution.

5. Know the role of impurities.

As the last refractory container that the molten steel passes through before solidification, the tundish has an important impact on the quality of steel. As far as possible, the particles of non-metallic inclusions in the steel should be eliminated when it is in a liquid state.

Tundish process requirements:

1. Good heat dissipation and small area

2. Good heat preservation performance and simple appearance

3. The size and configuration of the nozzle meet the slab section, flow number and continuous casting machine layout

4. It is convenient for pouring, cleaning and bricklaying

5. Structural stability under long-term high temperature.

Wanhao is a manufacturer who is specialized in designing various kinds of furnace and making refractory products for electric furnace, ladle, tundish, blast furnace, AOD furnace, IF furnace, etc.

Article Source:

Company name ：Luoyang Wanhao New Material Co., Ltd.

More Refractory Products: http://www.wanhaorefractory.com/en/product.html

Website: http://www.wanhaorefractory.com/


 

 

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