Calcinted Anthracite Coal

PRODUCT DESCRIPTION

Various steelmaking and casting enterprises have carbon requirements for castings, cast iron, cast steel, and castings. So the carburizer, as the name suggests, is to increase the carbon content in the molten iron. Commonly used materials in smelting are pig iron, scrap steel, and recycled materials. The carbon content of pig iron is high, but the purchase price is one section higher than that of scrap steel. Therefore, increasing the amount of scrap steel, reducing the amount of pig iron, and adding carburizer can play a certain role in reducing the cost of castings.

PRODUCT APPLICATION 

Anthracite carburizer is an additive for steelmaking. Its quality is based on the content of fixed carbon . It is divided into special grade (Fc≥95%), first grade (Fc≥94%), second grade (Fc≥93%), Level three (Fc>90%),which is a carburizing agent widely used in steelmaking and cast iron at home and abroad.
Ningxia's anthracite has an ash content of less than 7% and a sulfur content of 0.6%-2.9%. It is a rare high-quality anthracite and can be used to process high-grade coal carburizers. The specific performance is as follows:
High-density anthracite coal can produce high-quality coal-based steelmaking carburizers after ash reduction and heat treatment.
The particle size of coal-based carburizing agent is 1-8mm, and its carburizing effect is comparable to that of petroleum coke carburizing agent.
The use of coal-based carburizers to make steel has no effect on the chemical composition, total amount of inclusions, crystallinity, and mechanical properties of the crystal structure. The quality qualification rate of the steel is 100%.
Using coal-based carburizers instead of petroleum coke carburizers to increase carbon in steelmaking can reduce corporate costs and improve corporate economic benefits.

PRODUCT PERFORMANCE

Carburizing agent means that if you want to effectively increase the carbon content in the molten iron after adding it, you need to add more carburizing agent. This will undoubtedly increase the amount of other harmful elements in the carburizing agent, so that the molten iron cannot obtain a higher carbon content. Good earnings. In order to prevent pores in castings, the nitrogen content of the carburizing agent must be as low as possible. The lower the chemical index of the carburizing agent, such as moisture, ash, and volatile matter, the higher the fixed carbon content. Therefore, with high fixed carbon content, the content of these harmful components will not be high.
The particle size is moderate, the porosity is large, and the absorption speed is fast.
It has pure chemical composition, high carbon, low sulfur, minimal harmful components, and high absorption rate.
The product graphite has a good crystal structure, which improves the nucleation ability of the original molten iron. Increase the number of ink balls in ductile iron during incubation, and increase graphite crystal nuclei in the molten iron of the electric furnace. Refine and homogenize distribution in castings.
Excellent performance and stability. The selection of appropriate carburizers can help reduce smelting production costs and improve the quality of smelting metals and castings, allowing metal smelting companies and casting companies to reduce costs and gain greater profits.