Graphitized petroleum coke (GPC) - Calcined petroleum coke (CPC)

Application of high sulfur graphite in casting and steel industries

This material and its derivatives, such as high sulfur graphite, also known as calcined petroleum coke (CPC), are used in the foundry and ...

24/09/2024
5 min
Graphitized petroleum coke (GPC) - Calcined petroleum coke (CPC)

This material and its derivatives, such as high sulfur graphite, also known as calcined petroleum coke (CPC), are used in the foundry and steel industries.

What is high sulfur graphite (CPC)?
Graphite persulfur or calcined petroleum coke (CPC), this product is obtained from crude petroleum coke heated to a temperature above 1200 degrees Celsius.

This treatment removes volatile components, increases the carbon content and results in a pure carbon material with controlled sulfur levels. The controlled sulfur content of high sulfur CPC graphite makes it suitable for specific applications in the foundry and steel industries.
Application of high sulfur graphite (CPC) in carbon additive casting industries
CPC graphite has been widely used as a carbon additive in casting industries. By adding sulfur-rich graphite to casting materials, such as molten iron or steel, the carbon content can be precisely controlled. This control is very important in achieving the desired material properties, such as hardness and strength, in the final casting.

Templates and covers
High-sulfur graphite, or CPC, is also used in the production of molds and coatings for casting processes. CPC graphite acts as an excellent material for mold linings due to its high heat stability and smoothness, resulting in smooth casting. In addition, using high-sulfur graphite (CPC) in coatings makes them refractory and improves the surface coating of cast parts.

Increasing the fluidity of molten materials
When high-sulfur graphite is added to the casting mixture, it improves the fluidity of the molten metal. Adding sulfur-rich graphite (CPC) prevents casting defects such as shrinkage or porosity. By increasing the fluidity of the molten material with the addition of CPC graphite, you can ensure that the molten metal penetrates all parts of the mold, providing a more accurate and perfect casting.

Improving the graphite formation process
CPC graphite During the solidification process, the high carbon content in high-sulfur graphite causes the growth of graphite flakes or nodules in the cast iron matrix. The presence of graphite pieces or nodules increases the strength, ductility and thermal conductivity of cast iron and makes it more suitable for various applications. Graphite acts as a reinforcement and increases the overall resistance to cracking.

Improving casting quality
By increasing the casting ability of molten metal, the addition of high-sulfur graphite helps to reduce casting defects such as gas porosity and shrinkage, and the molten metal can fill the mold completely and uniformly. Two issues can compromise the casting; With empty spaces and trapped gases and with the addition of persulfur graphite, we can eliminate these risks. CPC graphite reduces the formation of unwanted compounds during solidification. Improve your casting quality with high-sulfur graphite (CPC) and produce high-precision, flawless castings that meet stringent industry standards.

Application of high-sulfur graphite (CPC) in the steel industry of steel production
Sulfur-rich graphite with unique properties has made it one of the essential materials for various steelmaking processes in the steel industry. In this section, we examine the specific applications of high-sulfur graphite in the steel industry and take a look at its importance in steel production and its contribution to increasing the quality of steel products.

Blast Furnace Ironmaking
In the process of making blast furnace iron, high-sulfur graphite is used as a source of carbon and energy. It is added to the blast furnace charge, which usually consists of iron ore, coke, and limestone. The high carbon content in CPC facilitates the reduction of iron ore and leads to the production of molten iron. Controlled sulfur in CPC graphite helps maintain the desired quality of the steel during subsequent steelmaking processes.

Electric Arc Furnace Ironmaking
Sulfur-rich graphite (CPC) plays an important role in the steel industry, especially in the production of steel through electric arc furnaces (EAF). Steelmaking with these furnaces includes melting and refining metal scraps with electric arc between electrodes and metal load. High-sulfur graphite contains high carbon and acts as a source of carbon and energy, helping to reduce iron oxide and facilitate the production of molten steel.

High sulfur graphite or calcined petroleum coke (CPC) plays an important role in foundry and steel industries. Properties such as high carbon, thermal stability, electrical conductivity and controlled sulfur make it a valuable material for various applications. In casting, high-sulfur graphite acts as a carbon additive and enables precise carbon control. In the steel industry, it acts as a source of carbon and energy during the steelmaking process and ensures the production of high-quality steel. These properties make high-sulfur graphite an essential component in the production of castings and steel products.

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