Using electric furnaces of more than 5t, the raw material is single and stable, and we recommend the decentralized addition method.according to the requirement of carbon content, according to the proportion of ingredients, the graphite recarburizer and the metal burden will be added to the lower part of the electric furnace together with each batch of materials. the carbon absorption rate of one layer of metal burden and one layer of graphite recarburizer can reach 90% to 95%.
The medium frequency induction furnace with about 3t is used. the raw material is single and stable.when first melting or leaving a small amount of iron water in the furnace, the graphite recarburizer that needs to be added shall be added to the surface of iron water at one time, and the metal burden shall be added immediately.
Using small medium frequency electric furnace with raw materials containing high carbon substances such as pig iron, we recommend fine tuning of carbon adding agent.after the steel/iron water is melted, adjust the carbon content, which can be added to the steel/iron water surface. the product can be dissolved and absorbed by eddy stirring of steel (iron) water or manual stirring during smelting in electric furnace. the carbon absorption rate is about 93%.