400mm uhp graphite electrode
Production process of 400*1800 graphite electrode
Material and manufacturing process of graphite electrode
400*1800 graphite electrode is a kind of high temperature resistant graphite produced by selecting petroleum coke, needle coke as aggregate, coal pitch as binder, through a series of processes such as kneading, molding, roasting, impregnation, graphitization, and mechanical processing. Quality conductive materials.
The 400mm uhp graphite electrode
is an important high-temperature conductive material for electric furnace steelmaking. Electric energy is input to the electric furnace through the 400mm uhp graphite electrode. The high temperature generated by the arc between the electrode end and the charge is used as the heat source to melt the charge for steelmaking. Some other submerged arc furnaces that temper yellow phosphorus, industrial silicon, abrasives and other materials also use 400mm uhp graphite electrode as conductive materials. The excellent and special physical and chemical functions of 400mm uhp graphite electrode are also widely used in other industrial sectors.
The materials produced for 400mm graphite electrode are petroleum coke, needle coke and coal pitch
Petroleum coke is a combustible solid product obtained by coking petroleum residue and petroleum pitch. The color is black and porous, the primary element is carbon, and the ash content is very low, generally below 0.5%. Petroleum coke belongs to the category of easily graphitized carbon. Petroleum coke is widely used in industries such as chemical industry and metallurgy. It is the primary material for the production of artificial graphite products and carbon products for electrolytic aluminum.
Petroleum coke can be divided into green coke and calcined coke according to the heat treatment temperature. The former is a petroleum coke obtained by delayed coking, which contains a large amount of evaporated components and has low mechanical strength. Calcined coke is obtained by calcining green coke. Most oil refineries in my country only produce coke, and most of the calcination operations are carried out in carbon plants.
Petroleum coke is classified according to the unevenness of sulfur, and can be divided into three types: high-sulfur coke (sulfur content of more than 1.5%), medium-sulfur coke (sulfur content of 0.5%-1.5%), and low-sulfur coke (sulfur content of less than 0.5%). 400mm uhp graphite electrode and other artificial graphite products are generally produced with low-sulfur coke.