The role of carburant is to increase the carbon content of castings and steel castings. As the name suggests, carburant increases the carbon content in molten iron. For example, it is often used to smelt pig iron, scrap steel, recycled materials, and iron with high carbon content. Carburizer is crucial in casting, and its functions include:

1. Compensation for carbon content: make up for the carbon lost due to long-term smelting to ensure that the carbon content of molten iron meets the standard.

2. Improve the performance of molten iron: increase the graphite nucleation core, reduce the tendency of white cast iron, refine the grains, and improve the machinability and mechanical properties of cast iron.

3. Optimize the quality of castings: reduce pores and shrinkage, improve strength and toughness, and improve surface quality and mechanical properties.

4. Improve casting efficiency: reduce slag volume, simplify slag removal operations, stabilize casting processes, and reduce costs and energy consumption.

5. Other functions: increase the amount of scrap steel, reduce casting costs; reduce furnace wall erosion and extend service life.

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