Graphite petroleum coke directly affects the carbon content
Graphite recarburizers have many significant characteristics, such as high fixed carbon, high absorption rate, faster absorption rate than similar graphitized recarburizers and more adsorption and less residue on the furnace wall, higher cost performance; low sulfur content, Low nitrogen content and so on, so graphite carburizing agent is commonly used in casting, cast iron, cast steel and other fields.
There will be a demand for carbon in castings, so graphite recarburizer is mainly used to increase the carbon content in molten iron. The commonly used furnace materials in smelting are pig iron, scrap steel, and recycled materials. The smelting of graphite recarburizer is a process of graphitization after high temperature treatment. Under 3000 high temperature conditions, the carbon molecular form changes from an irregular arrangement to a hexagonal uniform arrangement In this way, this graphite structure is easier to synthesize in molten steel and molten iron. The carbon content of pig iron is high, but the purchase price is a bit higher than that of scrap steel. Therefore, increasing the amount of scrap steel input, reducing the amount of pig iron input, and adding graphite recarburizer can play a role in reducing the cost of castings.