Crystalline foundry graphite

Crystal casting graphite is obtained from high-purity carbon-containing materials, followed by baking at high temperatures. It has a high degree of crystallization, which provides excellent heat dissipation and wear-resistant characteristics. It is mainly used in foundry production, in the manufacture of electrodes and as a lubricant at high temperatures.

Chemical structure and synthesis

Graphite is a form of elemental carbon in which carbon atoms are arranged in flat layers connected by weak van der Waals forces. A typical structural formula is conventionally written as:

(C)n​,

where the layers of carbon atoms are organized into graphene plates with characteristic cellular pores. The synthesis of foundry graphite includes high-temperature processing and refining of raw materials to obtain a product with optimal thermal and mechanical properties.

Physico-chemical properties

• Thermal conductivity: High heat dissipation capacity.

• Chemical inertia: It is resistant to chemical attack at high temperatures.

• Mechanical strength: Good wear resistance and stability under load.

• Crystal structure: The high degree of crystallization provides improved performance.

Application

• Foundry production: Production of metal casting molds due to their resistance to high temperatures and wear resistance.

• Electrodes: It is used in electrolysis and electric arc welding.

• High temperature lubricants: It is used as a component of lubricants in high temperature conditions.

Conclusion

Crystalline foundry graphite is a valuable technical raw material with excellent heat–dissipating, mechanical and chemically inert properties, which makes it indispensable in foundry production and high-temperature applications.