Shandong Sinorefractory New Materials Co.. Ltd

Chromite Based Nozzle Filling Sand .Our Ladle stuffing sand is made of high quality imported chrome ore, refined quartz sand and high refractoriness material, with good fluidity, fast flow, proper sintered layer thickness, anti-erosion and infiltration of molten steel. Open casting ladle rate reach to 99%, etc. reducing the labor intensity, reducing oxygen drainage, improve the quality of steel products, to ensure the smooth casting process. This chrome stuffing sand is developed through new production process and optimal formula of flow promoting agent and agglutinant inhibitor. It improves the natural casting rate without any contamination to the molten steel. Meanwhile our nozzle fill sands have been developed to meet the needs of steel making facilities worldwide. Each blend is carefully designed to enhance the free flow of steel from the ladle regardless of steelmaking practices. This is achieved through custom blending which affords each customer a product specific to their manufacturing needs.


The nozzle filling sand compound used in steel plants is mainly applied in ladles and tundishes, playing a crucial role in the
steel production process.

- Ladle: After the refining of molten steel is completed, a nozzle is set at the bottom of the ladle, and the tundish powder is filled
in the nozzle area. When it is necessary to pour the molten steel out of the ladle for casting, the tundish powder can guide the
smooth flow of the molten steel. It can prevent the molten steel from solidifying prematurely at the nozzle and blocking it, ensuring
that the molten steel flows out of the ladle at a stable flow rate and volume and enters subsequent casting equipment such as the
tundish. For example, in a converter steel - making workshop, the molten steel is poured from the converter into the ladle for refining,
and then the tundish powder is relied on to guide the molten steel into the continuous casting process.

- Tundish: The tundish is a container located between the ladle and the mold. The tundish powder is also used at the nozzle of the
tundish. Its function is to smoothly and accurately guide the molten steel poured from the ladle into the tundish into the mold for
billet casting. By controlling the properties and usage methods of the tundish powder, it is possible to ensure that the molten steel
maintains good fluidity during the transfer from the tundish to the mold, avoiding problems such as flow interruption and blockage,
thereby improving the quality of the cast billets and production efficiency. On the continuous casting production line, the tundish
powder in the tundish plays a key role in stabilizing the casting process and ensuring the quality of the cast billets.