Products Description
In the smelting process, the electric arc furnace body is in a high temperature state, the furnace lining is constantly subjected to chemical and mechanical erosion at high temperatures. After each furnace steelmaking, electric arc furnace refractory lining have different degrees of damage. Therefore, each time out of the furnace, must be timely repair furnace, which is to ensure normal smelting and extend the life of the furnace important measures.
Products Specifications
Furnace lining includes furnace wall, furnace bottom and furnace top. Among them, the furnace wall has the lowest service life and the worst working conditions. Not only is it close to the arc and the temperature is high, it is also susceptible to severe erosion by molten slag.
Furnace linings are generally composed of alkaline materials. The basic oxides (such as CaO, MgO, MnO) in the slag have little effect on the corrosion of the furnace lining, while the acidic oxides (such as SiO2, TiO2, ZrO2, P2O5, etc.) in the slag have a corrosive effect on the furnace lining. good results. Furnace age is mainly directly related to w(SiO2) in the slag. The alkalinity of alkaline arc furnace slag is generally between 24, which makes the slag less corrosive and has higher impurity removal ability.
The furnace lining is seriously damaged or the magnesium oxide used for furnace repair is not completely sintered and enters the slag, resulting in a large increase in MgO particles in the slag.
The poor fluidity of slag directly affects the chemical reaction between slag and steel, causing an increase in inclusions in the steel and seriously reducing the quality of the steel.
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