Main features and characteristics of EAF steelmaking

Source: | Author:ChangXing Refractory | Published time: 1464 days ago | 1041 Views | Share:

Main features and characteristics of electric arc furnace steelmaking

Using scrap steel or crude steel as the main solid material, there is no need for a huge ironmaking and coking system;
Refractory raw materials are used in a wide range, short-term, intermittent production is expected in production scheduling;
Using electric energy to melt (remelt) and heat, easy to obtain high temperature, convenient and accurate temperature adjustment, which is conducive to smelting all kinds of steel;
Furnace atmosphere (oxidation, reduction, neutral), vacuum degree, pressure can be changed; alloy yield is high, composition is easy to adjust and the control range is narrow;
Wide variety of adaptability, good quality, can smelt various types of high-quality steel and alloy steel with low P, S and O content;
The equipment is simpler, the process flow is short, the local area is small, the capital construction cost is low, the production is quick, and the pollution is easy to control;
High power consumption, [N], [H] high;
Drilling is lower than that of converters, and consumption of electrodes and refractory materials is higher than other smelting methods.
Steelmaking electric furnaces are usually in an alkaline corrosive atmosphere during the work process, so the refractories used in electric furnaces are mostly alkaline refractory materials, such as MgO-C bricks, pedal-filled MgO bricks, MgO-Cr 2 O₃ bricks, and MgO- CaO ramming materials, etc., a small part are neutral refractory materials, such as Al 2O₃-C materials, high-aluminum materials, etc.