| As the name implies, carburizer is used to increase the carbon content of molten iron. In smelting, the common furnace charge is pig iron, scrap and return charge. The carbon content of pig iron is high, but the purchase price is higher than that of scrap. Therefore, increasing scrap charge, reducing pig iron charge and adding carburizer can play a certain role in reducing casting cost. There are many kinds of raw materials and different production processes of carburizers, including wood carbon, coal carbon, coke, graphite, etc., among which there are many small types under various classifications. High quality carburizer generally refers to the graphitized carburizer. At high temperature, the arrangement of carbon atoms is in the micro form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities, increase the carbon content and reduce the sulfur content. |
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