use of Recarburizer

Common types of domestic recarburizers include graphite recarburizers, petroleum coke recarburizers, calcined coal recarburizers and other recarburizers. The raw material of domestic recarburizers is the coking of heavy oil residues in the petroleum refining process, which is petroleum coke. and pitch coke. Raw petroleum coke is calcined to become calcined petroleum coke. Raw petroleum coke is graphitized to obtain graphite recarburizer. Graphitization will reduce the content of impurities in the recarburizer, increase the carbon content of the recarburizer and reduce the sulfur content.
 
Carburizers have a wide range of uses and can be used in steelmaking, foundry and smelting industries. The use of carburizers in casting can increase the amount of scrap steel, which can reduce the amount of pig iron and save costs; carburizers can also improve the distribution of graphite, which will promote the graphitization of cast iron and refine graphite balls to make them more uniform in the matrix Thereby improving the quality of the product. In the smelting process of iron and steel products, due to factors such as smelting time, holding time and overheating time, the smelting loss of carbon in molten iron will increase, and eventually the carbon content in molten iron will decrease, resulting in The carbon content in the molten iron does not meet the refining expectations. Carbon-containing substances added to make up for the carbon content lost during steel smelting are called carburizers.
 
There are many kinds of raw materials for carburizers, and the production processes are also different. High-quality recarburizers usually refer to graphitized recarburizers. Under high temperature conditions, the arrangement of carbon atoms is in the microscopic form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities in the recarburizer, increase the carbon content of the recarburizer, and reduce the sulfur content.