Raw material technology of graphite carburizer
Graphite means that the molecular structure of carbon products is changed and arranged regularly by high temperature or other means. This molecular arrangement makes the molecular spacing of carbon wider, which is more conducive to decomposition and nucleation in molten iron or steel. The graphite carburizers on the market now generally come from two ways, one is the cutting of waste materials of graphite electrodes, and the other is the 3000 degree graphitization of petroleum coke.
There are many kinds of raw materials and production processes of carburizers. It is not said in the market that graphite powder is used for pressing molding. This production method needs to add too much binder for molding, and the carbon content generally cannot meet the requirements of high-quality carburizer. The pressed graphite powder is a solid block without a porous structure, so its absorption speed and absorption rate are not as good as those of calcined and calcined carbonaceous agents. High quality carburizers generally refer to graphitized carburizers. Under high temperature conditions, the arrangement of carbon atoms takes on the microscopic form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities in the carburizer, increase the carbon content of the carburizer and reduce the sulfur content. The carburizing agent belongs to the added raw materials for steel making and iron making. High quality carburizer is an indispensable auxiliary additive for the production of high-quality steel.