Silicon-manganese-calcareous shale deoxidizer and preparation method thereof
A technology of calcareous shale and silicon-manganese-calcium, which is applied in the field of steelmaking, can solve problems such as unsmoothness and high cost, and achieve the effects of smooth process, reduced content, and lower steelmaking cost
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[0010] Embodiment 1: Silico-manganese calcareous shale deoxidizer, the parts by weight of its raw materials are: quartz sand 45, black manganese ore 18, lapis lazuli 8, limestone 55, calcareous shale 25, iron filings 8, fly ash 15. Vermiculite 12. Sepiolite 8.
[0011] The preparation method of the silico-manganese calcium shale deoxidizer comprises the following steps: weighing each raw material according to the weight portion of the constituent raw materials, mixing, smelting at a high temperature of 2500-2800 DEG C for 2-3 hours, cooling and crushing to obtain.
[0012] The following is the deoxidation test, the test steel is low carbon steel, used in 2# furnace, 1.40kg / t steel
[0013] Hot metal conditions:
[0014] [S]S% [P]% 0.037-0.032 0.190-0.150
[0015] Deoxygenation result:
[0016] serial number furnace number Addition amount of the present invention (kg) Oxygen content (PPm) 1 2-12807 20 40.21 2 2-12808 20 37...
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