What are the indicators of coal carburizer for steelmaking?
Sep 13, 2024
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1. Sulfur content
In steelmaking coal carburizer, sulfur element (stable cementite) plays a role in preventing the expansion of graphitization, when the sulfur content of steelmaking coal carburizer is too high, it will affect the nodularization effect and consume more nodulator in production, thereby increasing the production cost of steelmaking, so it is necessary to choose the coal carburizer with low sulfur content for steelmaking.
2. Fixed carbon, ash, volatile content
The fixed carbon of coal carburizing agent used in steelmaking is calculated according to the content of water, volatile, ash and sulfur content of the carburizing agent, its value indirectly represents the quality of the product, and the ash and volatile content represents the content of impurities in the coal carburizing agent used in steelmaking, so it is necessary to choose the coal carburizing agent with high fixed carbon content, low ash and volatile content.
3. Nitrogen content
Nitrogen content is also an important indicator to measure the quality of steelmaking coal carburizer, when the nitrogen content of coal carburizer is high, the nitrogen content in liquid iron is increased, these excessive dissolved nitrogen will increase the stability of carbide, promote the formation of D-type graphite, thereby improving the hardness of steel products, so you can choose the coal carburizer with higher nitrogen content in steelmaking.
In summary, it can be seen that the index of sulfur content, fixed carbon content, ash content, volatile content and nitrogen content are used to measure the quality of coal carburizer used in steelmaking, and the index content of nitrogen and sulfur has a greater impact.
