annesheldon's blog

The tapping sleeve brick is the channel for the molten steel from converter to the ladle. It directly contacts with the molten steel and its life directly affects the steel making rhythm of the converter. From the structure, tapping sleeve bricks are divided into monolithic sleeve brick and split sleeve brick. The monolithic sleeve brick is generally used isostatic compression molding, split sleeve brick is used machine pressure molding.

Whether it is monolithic or split type, the inner holes is a circular structure of the through-hole. The hole size according to tapping time, and the wall thickness is generally 50-100mm. The hole shape is divided into straight and trumpet-shaped. Experiments show that the trumpet-shaped hole and the circular inlet shape, the tapping speed is faster, which means that the interference between the molten steel and the tap hole is weakened and the water flow is relatively stable, shortens the tapping time. There have many kinds of refractory products in our factory.

Changxing refractory provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, magnesia carbon brick, clay refractory bricks and other refractory products.

Article Source: Design and application of tapping sleeve brick
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd 
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

fire brick

Submerged entry nozzle was development in 1960s. At first time, it was produced from quartz. With the development of continuous casting, it can not meet the requirement of high level continuous casting and special steel casting.

With the improvement of the level of casting, especially special steel casting, quartz submerged entry nozzle can not meet requirement of casting life and steel quality. Therefore, aluminum carbon and aluminum carbon-zirconium carbon combined submerged entry nozzles came out. Compared to quartz submerged entry nozzle, this nozzle is of much longer service life. In order to adapt to low carbon steel casting, the inner layer of the ladle nozzle uses special refractory materials like aluminum magnesium, ceramics, etc. For casting aluminum killed steel, nozzle would easy to get block out of caking. Against this condition, both blowing argon in the way of ventilation and using non-carbon-containing and calcium zirconate material have achieved a good result. To solve some emergency working conditions, non-baking submerged entry nozzle was developed. By the methods of designing the trapezoidal submerged nozzle, and mounting impeller in the nozzles, we can make slag floating, in which way blocking can be well prevented.

Changxing refractory provides refractory products, calcium silicate products, castable & mortar, china refractory brick, ceramic fiber felt, ladle & tundish nozzle, ceramic fiber with high quality for you. Such as high alumina refractory bricks, magnesia carbon brick, clay refractory bricks and other refractory products.


Article Source:Submerged entry nozzle
Company name: Henan Xinmi Changxing Refractory Materials Co.,Ltd 
Email: sales1@chinafirebrick.com
Website:http://www.chinafirebrick.com/

HP Graphite Electrode


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