合理利用资源开发节钒型含镍铬HRB500E钢筋  

Development of HRB500E rebar containing Ni/Cr and vanadium saving by rational resource utilization

作　　者：戴晓天[1] 周和敏[1] 李卫[2] 齐渊洪[1] 王长城 

机构地区：[1]钢铁研究总院先进钢铁流程及材料国家重点实验室,北京100081 [2]钢铁研究总院功能材料研究所,北京100081 [3]广西盛隆冶金有限公司,广西防城港530022

出　　处：《钢铁》2016年第1期76-81,共6页Iron and Steel

基　　金：国家科技支撑计划资助项目(2013BAE07B04;2012BAB14B00)

摘　　要：根据企业原料特点(红土镍矿作为高炉炼铁配矿),提出充分利用铁水/钢水中的镍铬元素,开发资源节约型高强抗震钢筋的思路。在20Mn Si钢的基础上,根据HRB500E级钢筋的性能要求进行成分设计,研究了镍、铬、钒等合金元素质量分数对钢筋力学性能的影响。结果表明,钢中镍、铬元素质量分数均为0.25%时,钒质量分数可以降低至0.062%,即满足HRB500E级钢筋的力学性能要求;而钢中不含镍、铬元素时,钒质量分数须达到0.11%才能满足性能要求。含镍铬HRB500E钢筋的钒加入量仅相当于不含镍铬的钒钢的56.36%,节钒效果显著。这种高强钢筋生产方法不仅节约了钒资源,还实现了对难处理的低品质红土镍矿的有效利用。A new method of producing resource saving, high strength, anti-seismic steel rebar was proposed, which could make full use ofNi, Cr elements in hot metal/liquid steel, as lateritic nickel ore was used as one of BF raw materi- al. On the basis of 20MnSi steel, chemical components were designed according to the requirements of HRB500E grade rebar of China national standard. The effects of alloy elements, such as Ni, Cr and V on the mechanical properties of re- bar were studied. The results show that, the mechanical properties of rebar met the requirements of HRB500E grade steel when the contents ofNi, Cr contents were 0.25% and the content of V reduced to 0.062%. As for the rebar which did not contain Ni, Cr elements, V content should reach 0.11% to meet the performance requirements of HRB500E grade. V con- tent of HRB500E rebar which contains Ni and Cr is only equivalent to 56.36% of rebar without Ni and Cr. Hence, the ef- fect of vanadium saving is obvious. This method not only saves the resource of vanadium, but also realizes the effective utilization of low-quality lateritic ore.

关 键 词：红土镍矿 钒微合金化 含镍铬钢筋 高强钢筋 抗震钢筋 

分 类 号：TF76[冶金工程—钢铁冶金] TG142.1[一般工业技术—材料科学与工程]