Graphite electrode refers to a high-temperature resistant graphite conductive material made from petroleum coke and asphalt coke as aggregates, coal tar pitch as binder, through raw material calcination, crushing and grinding, batching, kneading, shaping, calcination, impregnation, graphitization, and mechanical processing. It is called artificial graphite electrode (referred to as graphite electrode), which is different from natural graphite electrodes prepared from natural graphite.
Graphite electrodes are mainly made from petroleum coke and needle coke as raw materials, coal tar pitch as a binder, and are made by calcination, batching, kneading, pressing, calcination, graphitization, and machining. They are conductors that release electrical energy in the form of an arc in an electric arc furnace to heat and melt the furnace material. According to their quality indicators, they can be divided into ordinary power graphite electrodes, high-power graphite electrodes, and ultra-high power graphite electrodes.
The main raw material for the production of graphite electrodes is petroleum coke. A small amount of asphalt coke can be added to ordinary power graphite electrodes, and the sulfur content of petroleum coke and asphalt coke cannot exceed 0.5%. When producing high-power or ultra-high power graphite electrodes, needle coke is also required. The main raw material for aluminum anode production is petroleum coke, and the sulfur content should not exceed 1.5% to 2%. Petroleum coke and asphalt coke should comply with relevant national quality standards.
Graphite electrodes are a key industrial component made of high-purity graphite, with excellent conductivity, high temperature resistance, and chemical stability. They are widely used in various fields such as arc furnace smelting, chemical industry, power, and aviation. Here is a detailed introduction:
Electric arc furnace smelting. Graphite electrodes are used as conductive electrodes in electric arc furnaces to transfer current and generate arc light, thereby melting and separating the metal in the furnace charge.
The chemical industry. Graphite electrodes are used in processes such as electrolysis and electrodeposition to transfer current and trigger chemical reactions.
The power industry. Used for processes such as electrochemical treatment, deoxidation, and desulfurization to improve process efficiency and product quality.
Aviation sector. Used for manufacturing high-tech products such as carbon fiber and composite materials.
Resistance furnace. Graphitization furnaces for producing graphite products, melting furnaces for melting glass, and electric furnaces for producing silicon carbide.
Processing of irregular graphite products. The blank of graphite electrodes is also used to process various shaped graphite products such as crucibles, molds, vessels, and heating elements.
In addition, graphite electrodes also have the advantages of low consumption and low pollution, promoting more sustainable production processes.
Post time: 05-23-2024
