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机构地区:[1]辽宁石油化工大学职业技术学院,抚顺113001 [2]抚顺特钢技术中心,抚顺113001
出 处:《特殊钢》2011年第4期44-46,共3页Special Steel
摘 要:005Cr25Ni20钢(%:24~26Cr、19~22Ni)要求C、P、S、Si等杂质元素含量低-(%):≤0.010C、≤0.010S、≤0.010P、≤0.15Si,因此采用3 t真空感应炉+真空自耗重熔炉冶炼工艺。通过采用优质纯铁(%:0.009C、0.035Si、0.001 2S、0.004 5P)、高纯铬铁(%:0.010~0.021C、0.11~0.13Si、0.002 5~0.005 0S、0.001 5~0.005 0P)和Ni板(Ni≥99%),真空感应炉熔炼时加A1、金属Ca、Ni-Mg脱氧,全程计算机控制真空自耗重熔速度,该钢成品化学成分为(%):0.005~0.007C、0.33~0.34Mn、0.03~0.04Si、0.001~0.002S、0.004~0.005P、24.34~24.62Cr、21.20~21.25Ni,达到技术要求,钢中氧含量为(12~22)×10^(-6),低于电渣重熔钢的氧含量-(30~80)×10^(-6)。As the requirement for included element C, P, S and Si content in ultra-pure austenite steel 005Cr25Ni20 (% :24 -26Cr, 19 -22Ni) are very low i.e. (%) : ≤0. 010C, ≤0. 010S, ≤0. 010P and ≤0. 15Si, the steel is smelted by 3 t vacuum induction furnace + vacuum consumption remehing furnace steehnaking process. With using quality pure iron (% : 0. 009C, O. 035Si, 0.001 2S, 0.0045P) , high pure chromium iron (% : 0.010 -0.021C, O. 11 -0. 13Si, 0. 002 5 - 0. 005 0S, 0. 001 5 - 0. 005 0P) and Ni-plate ( Ni ≥99% ), adding Al, metal Ca, Ni-Mg for deoxidation during vacuum induction smelting, and whole process computer control vacuum consumption remehing speed, the chemical composition of finished products of steel is (% : ) 0. 005 -0. 007C, 0. 33 -0. 34Mn,0. 03 -0. 04Si, 0. 001 -0. 002S, 0. 004 0. 005P, 24. 34-24. 62Cr, 21.20-21.25Ni to meet the technical requirement, and the oxygen content in steel- (12 22) × 10^-6 is lower that in steel by ESR process- (30 -80) × 10^-6 .
关 键 词:超纯奥氏体不锈钢005Cr25Ni20 真空感应炉 真空自耗重熔炉 冶炼工艺
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