The popular explanation of ferro manganese is the alloy of manganese and iron. Its raw materials are generally manganese ore, coke and lime containing manganese, which are melted in a high-temperature environment and fully reacted and smelted into ferromanganese. Due to the addition of coke in smelting, it contains a certain amount of carbon element. According to the content of carbon element, ferromanganese can also be divided into low-carbon ferromanganese, medium carbon ferromanganese and high-carbon ferromanganese.
Ferromanganese is widely used, but it is mainly used in steel-making and casting industries. During steel-making, ferromanganese is usually used as deoxidizer and desulfurizer. Good steel needs deoxidation and desulfurization treatment in smelting, and the use of deoxidizer will greatly increase its cost. Therefore, ferromanganese is a cheap deoxidizer, and desulfurization refers to the separation of sulfur and other harmful substances in steel, Ferromanganese can achieve the purpose of desulfurization, effectively reduce the content of harmful elements in steel and improve the quality of steel.
In terms of casting, ferromanganese is also a good accelerator and spheroidizing agent. Adding ferromanganese during casting can effectively spheroidize graphite and greatly shorten the spheroidizing time. On the other hand, ferromanganese can also greatly reduce the form of impurities in molten iron, improve the quality of cast iron, reduce the blockage of smelting furnace nozzle and effectively prolong the service life of smelting furnace.
