在高频感应炉上以Ar为载气,向脱氧良好的Mn13钢液喷吹 CaC_2—CaF_2系粉料进行还原脱磷,可将钢液中含磷量迅速降低,脱磷率最高可达74.7％。喷入钢液中CaCa_2的分解受温度和钢中碳活度的控制。喷吹温度对脱磷率有极其重要的影响。开喷温度在1490℃左右并尽量减少喷吹中的温降,则可获得最好脱磷效果。熔剂中CaF_2配比对脱磷效果关系不大,用工业萤石也可得到良好的脱磷效果。 In the high-frequency induction furnace with Ar as carrier gas to the well deoxidized Mn13 molten steel spray CaC_2-CaF_2 powder reduction dephosphorization, the phosphorus content of the molten steel can be rapidly reduced dephosphorization rate up to 74.7 %. The decomposition of CaCa2 sprayed into the molten steel is controlled by the temperature and the carbon activity in the steel. Injection temperature has a very important effect on the rate of dephosphorization. Open spray temperature of about 1490 ℃ and minimize the temperature drop during injection, you can get the best dephosphorization. The flux of CaF_2 ratio of dephosphorization little effect, with industrial fluorite can also get a good dephosphorization.