The raw material for making electrode paste is composed of solid carbon material and binding material. The quality of the electrode paste is related to the material formula and process. Solid materials include anthracite, metallurgical coke, petroleum coke and pitch coke, and graphite electrode scraps. Anthracite is dense, high in carbon content, low in volatile matter and low in price. Adding anthracite can improve the electrical conductivity and thermal conductivity of the electrode. The binding materials are pitch and tar. Tar is added to adjust the softening point. The binder in the electrode paste decomposes and removes volatiles during the sintering process, and the residual carbon is transformed into a strong coke net, which has a coking effect, making the electrode a hard whole.

Electrode paste requirements for raw materials

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