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In the smelting process of iron and steel products, due to factors such as smelting time, holding time, and longer overheating time, the smelting loss of carbon in the molten iron increases, resulting in a decrease in the carbon content in the molten iron, leading to The carbon content in molten iron does not reach the theoretical value expected for refining. The carbon-containing substances added in order to make up for the carbon content lost during the steel smelting process are called recarburizers. High-quality recarburizer is an indispensable auxiliary additive for the production of high-quality steel. In addition, the additives of brake pads also use recarburizers as friction materials.
There are many kinds of raw materials for recarburizers, and the production processes are also different. There are woody carbon, coal-based carbon, coke, graphite, etc., among which there are many small types under various categories. High-quality recarburizer generally refers to a recarburizer that has undergone graphitization. Under high temperature conditions, the arrangement of carbon atoms is in the microscopic form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities in the recarburizer, increase the carbon content of the recarburizer, and reduce the sulfur content.
The recarburizer is used in casting, which can greatly increase the amount of scrap steel, reduce the amount of pig iron or not use pig iron. In the feeding method of electric furnace smelting, the recarburizer should be put in with the scrap steel and other charge, and small doses can be added to the surface of the molten iron. However, it is necessary to avoid large quantities of materials into the molten iron to prevent excessive oxidation and the occurrence of insignificant recarburization effects and insufficient carbon content of the castings. The amount of recarburizer added is determined according to the ratio of other raw materials and the carbon content.
Features:
1. The recarburizer has moderate particle size, large porosity, easy to melt, and fast absorption.
2. The chemical composition is pure and impurity is small, the national carbon is high, low sulfur and nitrogen, the content of harmful components is very small, and the absorption rate is high.
3. The graphite crystal structure of the product is good, which can improve the nucleation ability of the original molten iron.
4. Excellent performance and stability.
In the smelting process of iron and steel products, due to factors such as smelting time, holding time, and longer overheating time, the smelting loss of carbon in the molten iron increases, resulting in a decrease in the carbon content in the molten iron, leading to The carbon content in molten iron does not reach the theoretical value expected for refining. The carbon-containing substances added in order to make up for the carbon content lost during the steel smelting process are called recarburizers. High-quality recarburizer is an indispensable auxiliary additive for the production of high-quality steel. In addition, the additives of brake pads also use recarburizers as friction materials.
There are many kinds of raw materials for recarburizers, and the production processes are also different. There are woody carbon, coal-based carbon, coke, graphite, etc., among which there are many small types under various categories. High-quality recarburizer generally refers to a recarburizer that has undergone graphitization. Under high temperature conditions, the arrangement of carbon atoms is in the microscopic form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities in the recarburizer, increase the carbon content of the recarburizer, and reduce the sulfur content.
The recarburizer is used in casting, which can greatly increase the amount of scrap steel, reduce the amount of pig iron or not use pig iron. In the feeding method of electric furnace smelting, the recarburizer should be put in with the scrap steel and other charge, and small doses can be added to the surface of the molten iron. However, it is necessary to avoid large quantities of materials into the molten iron to prevent excessive oxidation and the occurrence of insignificant recarburization effects and insufficient carbon content of the castings. The amount of recarburizer added is determined according to the ratio of other raw materials and the carbon content.
Features:
1. The recarburizer has moderate particle size, large porosity, easy to melt, and fast absorption.
2. The chemical composition is pure and impurity is small, the national carbon is high, low sulfur and nitrogen, the content of harmful components is very small, and the absorption rate is high.
3. The graphite crystal structure of the product is good, which can improve the nucleation ability of the original molten iron.
4. Excellent performance and stability.
