Want to understand what carburizing agent is material, to start from the upstream carburizing agent raw material link. At present, the most widely used carburizing agent in the market is calcined petroleum coke carburizing agent and graphitized carburizing agent.
1. Calcined petroleum coke carburizer is the petroleum coke that is calcined at 1250℃ for 48 hours and becomes calcined petroleum coke. In the whole process, the impurities such as volatile matter and moisture of petroleum coke are removed, so that the carbon content can reach more than 98.5% and the impurities such as volatile matter and ash can be reduced to less than 1.5%. Carburizing agent material from the appearance of irregular shape coke, the size of the black block (or particles), metallic luster, particles with porous structure, the main element composition for carbon.
2. Graphitization carburizing agent is a product obtained from petroleum coke or calcined petroleum coke after high temperature treatment by graphitization process at 3000℃. The difference between the calcination process and the calcination process is that the molecular structure of carbon changes greatly, and the structure is between the amorphous structure and the graphite structure, which is a disordered superimposed amorphous structure. Graphitized carburizer material from the appearance of calcined more black and bright, and can write words smoothly on the paper.
In short, the carburizer material simply can be seen as a kind of carbon structure between the amorphous structure and graphite structure of a carbon material.
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