Several aspects that affect the use of ladle lining

The refractory materials used in the lining of the ladle include breathable bricks, nozzle block bricks, magnesia carbon bricks, castables and so on. In addition to the influence of the ladle lining material itself, some factors will accelerate its consumption during use, resulting in a reduction in service life.

The refractory materials used in the lining of the ladle include breathable bricks, nozzle block bricks, magnesia carbon bricks, castables and so on. In addition to the influence of the ladle lining material itself, some factors will accelerate its consumption during use, resulting in a reduction in service life.

(Picture) Pouring molten steel

Ladle temperature: To be precise, it should be the temperature of molten steel in the ladle. The higher the temperature, the faster the dissolution and erosion and the lower the life span. The ladle will go through the processes of baking, joining steel, refining, continuous casting, etc., during which the temperature fluctuation range of the ladle is quite large, which will cause great stress on the refractory lining. In this case, refractory materials such as breathable bricks are prone to cracks and peeling, resulting in unnecessary wear.

The influence of steel slag: The influence of steel slag on the use of ladle refractories is mainly manifested in the influence of slag basicity, slag oxidation and slag viscosity.

(Picture) Continuous casting

The effect of argon blowing and stirring: It mainly refers to the stirring effect produced by the argon blowing of the breathable brick to refining molten steel. Argon blowing will reduce the oxygen concentration on the surface of the ladle slag and reduce the oxidation of carbon-containing refractories. It can be seen that the effect of argon blowing on refractories is not great.

In addition to the above factors, there are also the effects of vacuum treatment and molten steel residence time. For these factors, it is necessary to optimize the structure of refractory materials to reduce consumption and extend life. Firstfurnace@gmil.com, as a professional refractory material manufacturer, has been producing breathable bricks, nozzle block bricks, electric furnace covers, etc. for 18 years, with patented formula, unique design, and trustworthy!