Reasons of Furnace Lining Damage

Question: The causes of furnace lining damage?

Answer:

1. Impact from scrap and molten iron to the furnace lining and mechanical wear.
2. Molten steel and slag stirring as well as gas scouring.
3. Chemical erosion of the furnace lining by slag.
4. Furnace lining temperature’s excitation cooling or heat change and structure change.
5. Mechanical spalling at the beginning of furnace working.
6. Oxidation of carbon inside the lining brick.