What is a carbon additive Carburizers? As the name suggests, the main component of the recarburizer is carbon, and its main function is to increase carbon. In the smelting process of iron and steel products, due to factors such as smelting time and long holding time, the carbon content in the molten iron is often lost, resulting in a decrease in the carbon content in the molten iron and the expected theory of steelmaking. value. Carbon-containing substances added to make up for the carbon content lost during the smelting process of steel are called recarburizers.

According to the materials used, there are many types of recarburizers: metallurgical coke recarburizer, calcined coal recarburizer, composite material recarburizer, petroleum coke recarburizer, columnar graphite recarburizer, semi-graphite recarburizer agent, natural graphite recarburizer, graphitized petroleum coke recarburizer.

According to the casting use, there are the following categories: ductile iron recarburizer, gray iron recarburizer, cast steel recarburizer, and special recarburizer. So, what is an excellent recarburizer? The requirements for an excellent recarburizer are: the higher the fixed carbon, the better, and the lower the harmful components such as ash, volatile matter, S, and N, the better. The recarburizers for ductile iron generally use high-carbon and low-sulfur products, such as graphitized petroleum coke recarburizers. After high-temperature graphitization, the carbon atoms of the recarburizer change from the original random arrangement to the ordered flake arrangement, and the flake arranged graphite can become the best core of the graphite nucleation, which is conducive to promoting graphitization. Moreover, the sulfur content in the graphitized recarburizer is generated and discharged into sulfur dioxide gas, thereby reducing the sulfur content and achieving the effect of high carbon and low sulfur. Absorption is high and fast.

Advantages of carbon additive Carburizers:

In the steelmaking industry, the recarburizer can make up for the carbon content lost in the steel smelting process to reach the required value. The price of pig iron is generally higher than that of scrap steel, so the use of recarburizers in casting can greatly increase the amount of scrap steel used, and reduce the amount of pig iron used or not used pig iron, thereby reducing production costs. Petroleum Coke Carburizer.

Selection of carbon additive Carburizers:

What are the characteristics of high-quality carbon additive Carburizers?

1. The particle size of the carbon additive Carburizers is moderate, the porosity is large, it is easy to melt, and the absorption speed is fast.

2. The chemical composition has few pure impurities, high national carbon, low sulfur, low nitrogen, very few harmful components, and a high absorption rate.

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

Choosing a suitable carbon additive Carburizers not only help to reduce the cost of smelting production but also improve the quality of smelted metals and castings, allowing smelting metal plants and foundries to obtain economic benefits of both financial and quality.