wanhaorefractory

  The consumption of graphite electrode in EAF steelmaking runs through the whole smelting process, and its consumption is affected by many factors. This paper only analyzes the operation of smelting process. 1.Poor quality or improper proportion of scrap steel leads to poor slagging effect and prolonged smelting time The increase of feeding times and drilling data increases the probability of damage and fracture of electrode bottom; Longer smelting time is the direct factor that leads to the increase of power consumption and electrode consumption and loss. 2.Two electric furnace power supply equipment and electrode specifications do not match Electric arc furnace power transmission is a high-current and low-voltage operation. If the capacity of the power supply equipment is too large and exceeds the limit load of the electrode, the electrode will be reddened from bottom to top within 5~10min after arc starting, and the boundary of the joint is very obvious and mo...

Ultra-high power graphite electrodes refer to graphite electrodes that allow the use of current densities greater than 25 A / cm2. UHP graphite electrode is mainly used in ultra-high power electric furnace and ladle furnace. High power graphite electrodes refer to the graphite electrode that allows the use of a current density of 18 ~ 25A / cm2.Graphite electrode has good electrical properties and chemical stability. What’s more, graphite electrode has advantages of high mechanical strength, low impurity content and good vibration resistance. Graphite electrodes are good conductors of heat and electricity. HP graphite electrode is widely used in steelmaking electric furnace, refining furnaces, production of ferroalloy, industrial silicon, yellow phosphorus, corundum , submerged arc furnaces and other smelting furnaces that produce high temperatures by electric arc. 1. RP graphite electrode Specification : Bulk Density : >1.52g/cm3 Specific Resistance : ...

We can supply RP graphite electrodes, HP graphite electrodes , graphite electrodes, UHP graphite electrodes. The diameter from 75mm to 800mm. We also produce the graphite plates, graphite blocks, graphite crucibles and so on. The annual output of producer is over 80000MT. We have passed the ISO9001:2008 quality certification. Graphite electrodes are manufactured with high quality refractory raw material including petroleum cokes, needle cokes and coal-tar-pitch through the production process of calcining, crushing, burden, mixing kneading, extruding, baking, impregnation, graphitization, manufacturing, packing. Our refractory products are characterized by superior compact structure, good electrical and thermal conductivity, high mechanical strength and high resistance to oxidation and corrosion in high temperature. The high power graphite electrodes are widely use in electric are furnaces and ladle refining furnaces for steel making and used in electric s...