Silicon-carbon alloy

Purpose: Sic-C alloy is an alloy varieties converter new alloy, can replace ferrosilicon, silicon carbide, carbon agent for smelting deoxy-alloying process, which is characterized by: lower steelmaking costs, increase economic efficiency, improve product quality, performance and stability. I. Background Sic-C alloy varieties produced for a long time, the converter alloy has not been adjusted, the traditional alloy product structure is relatively simple, the Q195, Q235 steel using Mnsi + FeSi + SiAiCaBa + Sic + recarburiser process, HRB335, HRB400 steel using MnSi + Fesi + AiSi + recarburiser production process. The traditional manganese alloys, ferrosilicon resources are increasingly tight market prices soaring, making the steelmaking costs gradually increase, narrowing profit margins of steel, and the recovery of the traditional alloy greatly influenced by the converter operation, the amount of steel, By the end of the temperature and the amount of slag in the finished product makes the alloy composition fluctuations. Resulting in smelting steel chemical composition is unstable, finished internal indicators pass rate. Two, Sic-C alloy product structure optimization 1, help reduce production costs. 2, to improve steel quality. 3, to reduce the amount of alloy added. 4, the subject alloy to be adjusted. Si-C alloy instead of ferrosilicon, silicon carbide, carbon agent, reducing the amount of oxygen scavenger carried converter deoxygenation alloying, are stable, steel chemical composition, mechanical properties and internal quality are better than the traditional process. By testing and production use that the use of Si-C alloy converter deoxidation alloy process, so that greatly reduce the cost per ton of steel, has created considerable economic benefits, improve the market competitiveness of steel. Three, Sic-C alloy varieties effect 1, alternative ferrosilicon and carbon additive, FeALSi amount has been reduced, which can effectively reduce the cost of steelmaking 6-10 yuan / ton of steel. 2, smelting carbon steel, special steel and some low-alloy steel, each active element recovery and stability.