Brief introduction:
Low carbon ferromanganese is mainly an alloy composed of manganese and iron. Ferromanganese is a kind of deoxidizer and alloying material used most in steelmaking production. It is made of manganese ore, which is smelted in blast furnaces and electric furnaces. Low carbon ferromanganese is the main raw material for the production of stainless steel, high temperature and heat resistant steel, structural steel, tool steel and other special steel and electrode.
USE:
* Low carbon ferromanganese is mainly used in the production of stainless steel, high temperature heat resistant steel, structural steel, tool steel and other special steel.
* Low carbon ferrochrome is the main raw material used in the production of electrode.
* Low carbon ferromanganese is not only suitable for low carbon alloy structural steel, especially for high quality steel, but also can optimize the alloy, improve the internal quality of steel, reduce the cost of steelmaking alloy without changing the original steelmaking process, with obvious economic benefits.
|
Low - carbon ferromanganese index |
|||||
|
model |
Chemical composition(%) |
||||
|
Mn |
C |
Si |
S |
P |
|
|
≥ |
≤ |
||||
|
FeMn85C0.2 |
85.0 |
0.2 |
2.0 |
0.03 |
0.4 |
|
FeMn80C0.4 |
80.0 |
0.4 |
2.0 |
0.03 |
0.4 |
|
FeMn78C1.0 |
78.0 |
1.0 |
2.0 |
0.03 |
0.4 |
|
FeMn78C1.5 |
78.0 |
1.5 |
2.0 |
0.03 |
0.4 |
|
FeMn75C2.0 |
75.0 |
2.0 |
2.0 |
0.03 |
0.4 |
Calculation and editing of low carbon ferromanganese ingredients
Calculation of ingredients is generally carried out in accordance with the following procedures and requirements:
(1) Raw materials and product specifications: To determine the production grades and components of medium and low carbon ferromanganese;(2) raw material composition, including into the furnace silicomanganese alloy, manganese ore, lime and other raw materials.
(2) Parameter selection: Determination of element distribution coefficient, including alloy entry, slag entry and volatilization loss;The utilization rate of silicon in silicon-manganese alloy, including the amount of oxygen oxidized by the decomposition of air or high oxide, the amount into the alloy, the amount of reduction reaction;Selection and determination of basicity of slag.
(3) Calculation: Based on 100kg manganese ore, the high oxide of manganese is decomposed into Mn3O4 by heat and reduced by silicon.Similarly, Fe2O3 is reduced by silicon.Proportion of manganese ore and composition of mixed manganese ore;Calculation of the amount of silicomanganese alloy required;(3) Calculate the amount of lime required;The quantity of manganese ore, silicomanganese alloy and lime in the batch is calculated according to the above calculation.Calculation of alloy weight and composition;Slag weight and composition calculation.

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