Grate electrode mainly use petroleum coke, needle coke as raw material, coal aslt as binder, through calcination, ingredients, kneading, molding, baking and gratization, machining and made, which is released in electric arc furnace in the form of arc conductor of electricity to heat melting furnace charge
According to its quality index, can be divided into ordinary power grate electrode, high power grate electrode and ultra high power grate electrode.
The main raw material of grate electrode production is petroleum coke, ordinary power grate electrode can add a small amount of aslt coke, petroleum coke and aslt coke sulfur content can not exceed 0.5%.
Needle coke is also needed to produce high power or ultra high power grate electrodes.The main raw material for aluminum anode production is petroleum coke, and the sulfur conten should not exceed 1.5% ~ 2%.
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