Technology requirements for refractory of ladle

With the development of steel-making technology, ladle is not only the container transportation of molten steel, but also bear the molten steel processing and refining function. With the development of steel residence in refining, ladle time prolonged, molten steel temperature increased, and accompanied by strong stirring, vacuum treatment, arc heating and the slag erosion, puts forward higher requirements for steel tundish refractory:

1. Dense layer formed a semi molten state under high temperature, and reduce the slag sticking;
2. A swelling must in the process of using, thus to form a whole, not cracking, spalling; especially the bottom of the bag can not because of shrinkage cracking cause fall off;
3. Ladle as the intermittent operation, through high temperature cooling — repeated thermal cycling, fire brick must have good thermal shock resistance and spalling resistance;
4. In order to maintain the cleanliness of molten steel in ladle, ladle should have good corrosion resistance, high temperature to minimize the refractory material into the molten steel;
5. From the economic point of view, requirements of ladle lining construction of a good performance and reasonable price. Lining refractories from amorphous to amorphous materials products