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Anode Bar & Anode stub

In aluminium smelting, anode bars are also used in the electrolytic process. Anodes are typically made of carbon and act as a source of electrons for the electrolytic reaction. As the electric current passes through the anode, it causes the carbon to oxidize, releasing electrons into the molten electrolyte bath.

During the process, the anode bars are consumed as the carbon is oxidized, and must be periodically replaced. The rate of consumption of the anode bars depends on a variety of factors, including the current density, the temperature of the bath, and the composition of the anode material.

To improve the performance and durability of anode bars, they are often made with a higher purity of carbon and may be mixed with other materials, such as pitch or petroleum coke. The shape and size of the anode bars can also vary depending on the specific requirements of the smelter.

An anode stub is a type of anode used in aluminium smelting, which differs from a standard anode bar in its shape and function. Anode stubs are shorter and wider than anode bars, and are typically used in prebake smelters, where the anodes are suspended vertically from an overhead crane.

Anode stubs have a cylindrical shape with a flat top and bottom, and are often made with a higher purity of carbon than anode bars. The flat top of the anode stub is used to make a connection with the overhead crane, which lowers the anode into the electrolytic bath.

The use of anode stubs offers several advantages over standard anode bars. Because anode stubs are shorter and wider, they can be more easily handled and transported, and they require less space for storage. Additionally, anode stubs can be prebaked in a separate oven, which allows for better control of the anode quality and reduces the risk of anode breakage during handling and transportation.

Overall, both anode bars and anode stubs are important components in aluminium smelting, and their performance can have a significant impact on the efficiency and profitability of the smelting operation.