Why are graphite electrodes used?
Graphite rods are used as electrodes in electrolysis because graphite’s structure enables it to be an excellent conductor. The high number of delocalized electrons allows electricity to pass through graphite rapidly.
How do you make graphite electrodes?
The graphite electrode is mainly made of petroleum coke and needle coke, and the coal bitumen is used as a binder. It is made by calcination, compounding, kneading, pressing, roasting, graphitization and machining. It is to discharge electric energy in the form of electric arc in the electric arc furnace.
Is graphite electrode inert?
Graphite and platinum are examples of inert electrodes. Examples of reactive electrodes are copper, silver and gold.
Why do graphite electrode prices fall?
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What is a hollow graphite electrode？
Hollow graphite electrodes are hollow electrodes. The preparation of this product is directly pressed into a hollow tube when the electrode is formed or drilled in the center of the electrode during processing. The other production processes are the same as the ordinary graphite electrode process. The production of hollow (hollow) graphite electrodes can save carbonaceous materials and reduce the weight of hoisting graphite electrodes; the hollow areas of the graphite electrodes can also be used to add alloy materials and other materials required for steelmaking or to pass the required gas. However, the hollow graphite electrode has a complicated forming process, limited raw material savings, and low production yield, so the hollow graphite electrode has not been widely used. LMM GROUP One stop solution for steel industry
What's the application of UHP Graphite Electrode?
UHP graphite electrodes are used to recycle steel in the arc furnace industry. Its main ingredient is high-value needle coke, made from petroleum or coal tar. The graphite electrode is machined in a cylindrical shape and threaded areas are machined at each end. In this way, the graphite electrode can be assembled into an electrode column using an electrode connector.
In order to meet the requirements of higher work efficiency and lower total cost, large capacity ultra-high power arc furnace is becoming more and more popular. As a result, UHP graphite electrodes with diameters of more than 500 mm will dominate the market.
What are the main properties of graphite electrodes?
Different grades, different performance.
Mainly depends on the power, is the ordinary RP, high HP, or ultra high
Specifically, it will involve density, ash content, resistivity, and bending resistance
Strength, modulus of elasticity, etc.
What is ordinary power graphite electrode?
Ordinary power graphite electrode is produced by ordinary grade petroleum coke, with low graphitization temperature, high resistivity, large linear expansion coefficient and poor thermal shock resistance, so the allowable current density is low.