rp hp 400 450 500mm graphite electrodes

Pubdate: 08-13 2021

The development of electric furnace steelmaking technology continuously puts forward new requirements for the variety and performance of rp hp 400 450 500mm graphite electrodes

rp hp 400 450 500mm graphite electrodes

The development of Datong rp hp 400 450 500mm graphite electrodes processing electric furnace steelmaking technology (the large-scale electric furnace, the increase of electric power per furnace capacity and the use of DC electric arc furnace) continue to propose new types and performance of rp hp 400 450 500mm graphite electrodes The use of high-power and high-power electric furnaces for steelmaking can shorten the melting time of the charge, improve production efficiency, reduce power consumption and reduce the consumption of rp hp 400 450 500mm graphite electrodes.

According to the transformer capacity of the furnace capacity, the electric arc steelmaking furnace can be divided into ordinary power electric furnace (furnace capacity 300kV, about A), high-power electric furnace (furnace capacity about 400kV.A), high-power electric furnace (furnace capacity 500~1200kV/ A). According to the classification of the electric power level of electric furnace steelmaking, and according to the difference between the raw materials used in the production of rp hp 400 450 500mm graphite electrodes and the difference in physical and chemical indicators of the finished rp hp 400 450 500mm graphite electrodes, the rp hp 400 450 500mm graphite electrodes are divided into 3 accordingly Varieties: ordinary power rp hp 400 450 500mm graphite electrodes (RP), high power rp hp 400 450 500mm graphite electrodes (HP) and high power rp hp 400 450 500mm graphite electrodes (UHP).

Ordinary power rp hp 400 450 500mm graphite electrodes are produced from ordinary petroleum coke, with low graphitization temperature and pain, high resistivity, large linear expansion coefficient and poor thermal shock resistance, so the allowable current density is low. High-power rp hp 400 450 500mm graphite electrodes are produced using petroleum coke (or low-grade needle coke). Sometimes the body of rp hp 400 450 500mm graphite electrodes needs to be dipped, and its physical and mechanical properties are better than ordinary power rp hp 400 450 500mm graphite The electrodes should be higher, such as low resistivity, allowing a larger current density.

High-power rp hp 400 450 500mm graphite electrodes will be used in the production of needle coke, and its graphitization heat treatment must be carried out in an in-line graphitization furnace. The graphitization temperature is as high as 2800~3000°C, so the resistivity is lower, and it is allowed to pass The larger the current density, the smaller the linear expansion coefficient, and the excellent thermal shock resistance.


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