Xie Ying, a manufacturer of modified coal asphalt
Carbon electrode paste is a conductive electrode material used in electric furnace steelmaking and other industries, and the main raw materials include coal pitch and needle coke. Coal pitch mainly plays the role of a binder in carbon electrode paste, bonding needle-like coke particles together to form an electrode paste with a certain shape and strength.
In the preparation process of carbon electrode paste, coal pitch and needle coke and other raw materials are mixed according to a certain proportion, and then processed by heating, stirring and kneading to form an electrode paste with certain fluidity and thixotropy. In this process, coal pitch acts as a binder, which can effectively bond the needle coke particles together, and make the formed electrode paste have a certain strength and high temperature resistance.
In addition, coal pitch also has certain anti-oxidation and anti-crack effects in carbon electrode paste. Due to the large amount of impurities such as polycyclic aromatic hydrocarbons and heteroatoms in coal pitch, the presence of these impurities may have an impact on the performance of the electrode paste. Therefore, when using coal pitch as a binder, it needs to be properly treated, such as refining and desulfurization, to remove impurities in it and improve its purity and quality.
In general, coal pitch plays an important role as a binder in carbon electrode paste, which is of great significance for the manufacture of high-quality carbon electrode paste. At the same time, in order to improve the quality and performance of the electrode paste, it is necessary to strictly control the factors such as temperature, pressure and time in the preparation process.