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graphite-electrodes

AGRM Graphite Electrode For Kiln

Graphite electrode is mainly made of Petroleum coke and needle coke as raw materials and coal tar pitch as binder after calcination, batching, kneading, molding, roasting, graphitization and machining. It is a conductor that releases electric energy in the form of arc to heat and melt furnace materials. According to its quality indicators, it can be divided into ordinary power graphite electrode, high power graphite electrode and ultra-high power graphite electrode.

AGRM Graphite Electrode

The main raw material for graphite electrode production is Petroleum coke. A small amount of asphalt coke can be added to the ordinary power graphite electrode. The sulfur content of Petroleum coke and asphalt coke should not 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 is controlled to be no more than 1.5%~2%. Petroleum coke and asphalt coke should meet the relevant national quality standards.

Select The Ideal Graphite Electrodes For Electric Arc Furnaces

The steelmaking procedures within electric arc furnaces (EAF) involve a series of critical stages. Electrode oxidation, sublimation, dissolution, spalling, and breakage all contribute to the overall cost of EAF steelmaking. Careful consideration in the choice, utilization, and maintenance of graphite electrodes can significantly diminish electrode consumption.

Furnace CapacityInner Dia.Transformer Capacity (MVA)Electrode Dia.
tmRPHPUHPmm
103.3557.510300/350
153.6561012350
203.957.51215350/400
254.3101518400
304.6121822400/450
404.9152227450
505.2182530450
605.5202735500
706.8223040500
806.1253545500
1006.4274050500
1206.7304560550/600
1507355070600
1707.36080600
2007.670100600/700
2508.2120700
3008.8150700

AGRM Graphite Electrode Application

For electric arc steelmaking furnaces

Electric furnace steelmaking is a major user of graphite electrodes. The production of electric furnace steel in China accounts for about 18% of the crude steel production, and graphite electrodes used for steelmaking account for 70% to 80% of the total consumption of graphite electrodes. Electric furnace steelmaking uses graphite electrodes to introduce current into the furnace, and uses the high-temperature heat source generated by the arc between the electrode end and the furnace material for smelting.

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Used for submerged arc furnaces

The submerged arc furnace is mainly used for the production of industrial silicon and yellow phosphorus. Its characteristic is that the lower part of the conductive electrode is buried in the furnace material, forming an arc in the material layer, and heating the furnace material using the heat energy emitted by the resistance of the furnace material itself. The submerged arc furnace with high current density requires graphite electrodes, such as about 100kg of graphite electrodes for producing 1 ton of silicon and about 40kg of graphite electrodes for producing 1 ton of yellow phosphorus.

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For resistance furnaces

The graphitization furnace for producing graphite products, the furnace for melting glass, and the electric furnace for producing silicon carbide all belong to resistance furnaces. The materials inside the furnace are both heating resistors and heated objects. Usually, the conductive graphite electrode is embedded in the furnace wall at the end of the resistance furnace, which is used for discontinuous consumption of the graphite electrode.

Used for preparing irregular graphite products

The blank of graphite electrodes is also used for processing into various special-shaped graphite products such as crucibles, molds, vessels, and heating elements. For example, in the quartz glass industry, for every 1 ton of electric fusion tube produced, 10 tons of graphite electrode blanks are required; For each ton of quartz brick produced, 100kg of graphite electrode blank is required.

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Rigorous Production Processes with Graphite Electrodes

Graphite electrodes are manufactured using raw materials such as petroleum coke, needle coke, and coal tar pitch. These materials undergo a sequence of meticulously executed steps, including calcination, blending, kneading, shaping, baking, graphitization, and mechanical processing.

Each stage of the process is conducted with precision to guarantee the finest quality of graphite electrodes. Starting from the selection of premium raw materials to the meticulous execution of various production stages, we ensure that every electrode meets the highest standards of excellence. This dedication to stringent manufacturing processes results in graphite electrodes that deliver exceptional performance and reliability across diverse industrial applications.

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Graphite Electrode Prices

Influenced by Market Demand and Raw Material Supply

Graphite electrodes are primarily composed of raw materials such as petroleum coke, needle coke, and coal tar pitch. They undergo a series of processes including calcination, blending, kneading, shaping, baking, graphitization, and mechanical processing. Graphite electrodes serve as conductors that utilize electric arcs within a furnace to release electrical energy, heating and melting furnace materials. Below are the key factors influencing the fluctuations in graphite electrode prices:

Raw Material Costs: The availability and cost of key raw materials, particularly petroleum coke and needle coke, play a crucial role in determining the overall production cost of graphite electrodes.

Market Demand: Changes in steel production levels and industrial activity directly impact the demand for graphite electrodes. Increased demand can lead to price hikes, while decreased demand may lead to price reductions.

Global Steel Industry: The health and growth of the steel industry have a significant impact on graphite electrode demand. Economic trends, construction activity, and automotive production influence steel production, subsequently affecting electrode prices.

Energy Costs: Energy-intensive processes involved in graphite electrode manufacturing can be influenced by fluctuations in energy prices, which in turn can impact the final electrode prices.

Environmental Regulations: Stringent environmental regulations can impact the production of key raw materials and manufacturing processes, potentially affecting costs and, consequently, prices.

Supply Chain Disruptions: Events such as supply shortages, geopolitical issues, or disruptions in transportation can lead to supply chain challenges, affecting both material availability and electrode prices.

Global Economic Factors: Broader economic conditions, including inflation, currency exchange rates, and global trade policies, can impact production costs and, consequently, graphite electrode prices.

Technological Advancements: Innovations in manufacturing processes, electrode quality, and efficiency can influence production costs and overall electrode pricing.

Considering these factors, graphite electrode prices may experience fluctuations over time. It’s essential for stakeholders in the industry to stay informed about these dynamics to make informed decisions related to procurement and production.

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