Does the molten iron remaining in the induction melting furnace damage the inner lining of the furnace wall?

When the induction melting furnace melts gray cast iron, about one-third of the molten iron remains in the furnace after melting. Does it affect the life of the furnace wall lining?

Generally speaking, it is harmless, it mainly depends on the material of your furnace wall lining.

One-third of the molten iron is too much. Normally, it depends on how big your furnace is. Sudden heating and cooling will affect the life of the furnace. You can leave molten iron, but don’t leave too much molten iron.