Production of low carbon manganesium iron in medium frequency induction furnace by remelting process
An intermediate frequency furnace and ferroalloy technology, applied in the field of low-carbon manganese ferroalloy production, can solve the problems of unfavorable environmental protection, large investment, easy carbon increase, etc., and achieve the effect of easy process control and low investment.
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Embodiment 1
[0010] Embodiment 1, utilize intermediate frequency furnace to produce low-carbon ferromanganese alloy (as FeMn85C 0.2 ):
[0011] a. Put the metal manganese into the intermediate frequency furnace, and melt it into a liquid state when it is energized;
[0012] b. After adding steel scrap into the manganese metal solution to dissolve, remove the slag; the amount of steel scrap added is 8-18% of the mass of manganese metal.
[0013] c. After the alloy solution in the ladle is cooled to a solid state, the alloy block is hoisted out and crushed to form the block shape required by the customer. The outlet temperature of the alloy in the intermediate frequency furnace is controlled at 1400-1600°C.
Embodiment 2
[0014] Embodiment 2, utilize intermediate frequency furnace to produce low-carbon ferromanganese alloy (as FeMn80C 0.4 , FeMn84C 0.3 ):
[0015] a. Put the metal manganese into the intermediate frequency furnace, and melt it into a liquid state when it is energized;
[0016] B, after adding steel scrap to melt in the manganese metal solution, remove the slag; the addition of steel scrap is 5-25% of the manganese metal quality,
[0017] c, add silico-manganese in the steel ladle, pour the alloy solution in the intermediate frequency furnace into the ladle to melt the silico-manganese; the addition of the silico-manganese alloy is 5-15% of the metal manganese quality, and the silicon-manganese alloy contains silicon of 17%, containing 65% manganese.
[0018] d. After the alloy solution in the ladle is cooled to a solid state, the alloy block is hoisted out and crushed to form the block shape required by the customer. The outlet temperature of the alloy in the intermediate fr...
Embodiment 3
[0019] Embodiment 3, utilize intermediate frequency furnace to produce low-carbon ferromanganese alloy (as FeMn80C 0.7 ):
[0020] a. Put the metal manganese into the intermediate frequency furnace, and melt it into a liquid state when it is energized;
[0021] b. After adding steel scrap into the manganese metal solution to dissolve, remove the slag; the amount of steel scrap added is 10-28% of the mass of manganese metal.
[0022] c, add silico-manganese in the ladle, pour the alloy solution in the intermediate frequency furnace into the ladle to melt the silico-manganese; the addition of the silico-manganese alloy is 5-20% of the metal manganese quality, and the silicon-manganese alloy contains silicon of 17%, containing 65% manganese.
[0023] d. After the alloy solution in the ladle is cooled to a solid state, the alloy block is hoisted out and crushed to form the block shape required by the customer. The outlet temperature of the alloy in the intermediate frequency fu...
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