Silicon-aluminium-calcium composite deoxidant and its preparing method
A composite deoxidizer, silicon-alumina technology, applied in the field of metallurgy, can solve the problems of increased oxidation reaction probability, lower aluminum yield, lower deoxidation effect, etc., to eliminate nozzle blockage, reduce inclusions, and increase yield Effect
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[0017] [Example 1]
[0018] Weigh each raw material (unit: kg): silicon-calcium alloy (containing 55% silicon, 30% calcium) 20, aluminum ingot 10, ferrosilicon (75% silicon) 26, and steel scrap 44. The above raw materials are remelted in an intermediate frequency electric furnace. The percentage content of each component in the obtained product is: silicon 30.5%, aluminum 10%, calcium 6%, and the balance is iron.
Example Embodiment
[0019] [Example 2]
[0020] Weigh each raw material (unit: kg): silicon-calcium alloy (containing 55% silicon and 30% calcium) 40, aluminum ingot 27, ferrosilicon (75% silicon) 23, and steel scrap 10. The above raw materials are remelted in an intermediate frequency electric furnace. The percentage content of each component in the obtained product is: silicon 39.25%, aluminum 27%, calcium 12%, and the balance is iron.
Example Embodiment
[0021] [Example 3]
[0022] Weigh each raw material (unit: kg): silicon-calcium alloy (containing 55% silicon, 30% calcium) 34, aluminum ingot 25, ferrosilicon (75% silicon) 24, and swarf 7. The above raw materials are remelted in an intermediate frequency electric furnace. The percentage content of each component in the obtained product is 36.7% silicon, 25% aluminum, 10.2% calcium, and the balance is iron.
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