Recarburizer generally refers to a recarburizer that has undergone graphitization. Under high temperature conditions, the arrangement of carbon atoms is in the form of graphite, so it is called graphitization.
Used as a reducing agent in the smelting process. The recarburizer is a carbon-containing substance that is added to supplement the carbon content required in the molten steel. In the process of electric arc furnace steelmaking, coke or anthracite can be added as a recarburizer during charging. Due to its high ash and volatile content, induction furnace smelting cast iron is rarely used as a recarburizer.
For casting, cast iron, cast steel, and castings, there is a requirement for carbon. Then the recarburizer, as the name suggests, is to increase the carbon content in the molten iron. For example, the commonly used furnace materials in smelting are pig iron, scrap steel, and recycled materials. The carbon content of pig iron is high, but the purchase price is higher than that of scrap steel. Therefore, increasing the amount of scrap steel, reducing the amount of pig iron, and adding recarburizers can play a role in reducing the cost of castings.