Graphite electrode is mainly made from petroleum coke and needle coke an make the coal tar pitch as the binder, through calcination, mixing, kneading, pressing, baking, graphitization, and machining , it is a conductor in an electric arc furnace to form arc release electricity for heating and melting of the charge, it can be divided into ordinary power, high power and ultra high power according to the quality index level. The graphite electrode mainly includes ordinary power graphite electrode, oxidation resistant coating, graphite electrode, high power graphite electrode and ultra high power graphite electrode .
In order to make the graphite electrode with a series of physical and chemical properties when we used it , the asphalt binder decomposition and polymerization, internal rearrangement reaction and various molecules, we must baking the electrode green roasting according to a certain technological condition, the formation of coking coking binder, aggregate particles in the network, all the links aggregate particles of different size firmly together, in order to make the electrode has a certain mechanical strength, heat resistance, corrosion resistance, good thermal conductivity of finished products or semi-finished products. The main purpose of roasting is to remove volatile matter, reduce specific resistance, fixed geometry, binder coking, and the volume is fully contracted.
The application requirement of graphite electrode: screwing the joint end into the hole of the spare graphite electrode carefully(we don’t recommend to joint electrode on the replaced graphite electrodes from furnace directly),it shouldn’t collide the threads; the electrode sling (recommended spreader of graphite material) electrode hole screwed into the standby electrode at the other end of the lifting electrode; when the pad to spare joint soft electrode end of the ground to prevent damage joints; with a hook into the spreader rings after lifting, lifting the electrode to smoothly, preventing the electrode from B and other loose or fixed device collision.