Also known as conductive paste, electrode paste is a product made of carbon that's used in producing continuous self-baking electrodes for electric-arc furnaces. The electrodes play a crucial role in the steelmaking procedure, transferring current from the electric arc furnace to the melt pool. This energy is then converted into heat and used to drive the reaction.
To produce high-quality, durable electrode pastes, the right balance must be struck between raw material, sintering process, and coating technology. A number of industry leaders have catalyzed transformative advances in electrode paste manufacturing technologies, driving efficiency and sustainability within the metallurgical processes.
Best electrode paste manufacturers are masters at creating homogeneous, uniform mixtures. They use state-of-the-art mixing equipment to ensure that every ingredient is evenly distributed, resulting in an electrode paste with optimal conductivity and performance in electric arc furnaces.
A variety of additives are added to the electroplating process in order to improve the durability and performance. In order to ensure the durability and stability of electrodes, antioxidants are added. Surfactants increase the flowability of pastes and their plasticity. This allows them to be formed into different shapes and sizes.
After the materials have been uniformly mixed, sintering is performed. The raw materials are combined and carbonized to produce a durable, highly-conductive electrode paste. The baking process also removes volatile components and increases the density of the electrode paste. The final electrode paste is then coated on a substrate using advanced techniques, such as slit die head coating or screen printing. After being cured, the coated substrate is inspected and packaged under stringent quality control conditions.
The electrode paste manufacturing technology is a crucial step in the production of Soderberg electrodes. It is this electrode type that powers most EAFs. This allows the EAF to produce and transmit electricity from the arc across to the melting pool. Using this electrical energy, heat is produced to accelerate the production of iron and other metallic elements.
According to customer requirements, electrodes are available in various forms such as eggs, cylinders or briquettes. Orient Carbon Industry Co., Ltd, produces the carbon-based material, in a two-step process. First is the production of synthetic graphite. This is then impregnated with resin to waterproof it and enhance its mechanical properties. The final product is sold as electrode cylinders, Soderberg briquettes and polygonal blocks.
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