Ferromanganese has many uses and is widely used in steelmaking, casting and metallurgical industries. What other more powerful uses are there? Without having too much knowledge, let me briefly introduce the knowledge about ferromanganese:
The popular explanation of Ferro Manganese is the alloy of manganese and iron. The raw materials for its production are generally manganese ore, coke, and lime containing manganese, which are melted in a high-temperature environment and fully reacted to smelt. Ferromanganese contains coke during the smelting, so it contains a certain amount of carbon inside. Depending on the content of carbon, the amount of manganese Iron can also be divided into low carbon ferromanganese, medium carbon ferromanganese and high carbon ferromanganese.
1. Main classifications of ferromanganese:
High carbon ferromanganese (carbon content is 7%)
Medium carbon ferromanganese (carbon content 1.0-1.5%)
Low carbon ferromanganese (containing 0.5% carbon)
2. Ferromanganese smelting process:
(1) Blast furnace smelting is to smelt ferromanganese by putting raw materials into a blast furnace and heating coal to a certain temperature;
(2) Electric furnace smelting is a method that uses electric energy as fuel to quickly bring the raw materials to a certain temperature and fully react to smelt ferromanganese;
(3) Electric furnace refining: Medium and low carbon ferromanganese are generally desiliconized and refined using a 1500-6000Kv·A electric furnace. The raw materials are mainly manganese silicon, manganese-rich ore and lime;
(4) Oxygen blowing refining: Use pure oxygen to blow liquid carbon ferromanganese or manganese-silicon alloy columbium to obtain medium and low carbon ferromanganese.
3. Uses of ferromanganese: The uses of ferromanganese can be said to be extensive, but ferromanganese is mainly used in the steelmaking and casting industries. Ferromanganese is usually used as a deoxidizer and desulfurizer during steelmaking. Good steel needs During smelting, deoxidation and desulfurization are carried out, and the use of deoxidizers will greatly increase its cost. Therefore, ferromanganese is a cheap deoxidizer. Desulfurization refers to the removal of harmful substances such as sulfur in steel. Ferromanganese can It 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 to ferromanganese alloys during casting can effectively spheroidize graphite and greatly shorten the spheroidization time. On the other hand, ferromanganese can also significantly reduce molten iron.
