本厂20MnSiⅡ级螺纹钢筋试生产工艺流程为:电弧炉冶炼——浇成8吋钢锭——500轧机开坯成60×60mm——300轧机轧成材(φ16～φ25mm螺纹钢)。试制初期,钢材质量不稳定,不能保证使用要求。经研究,在工艺上采取相应措施,初步探索出影响20MnSi螺纹钢质量的因素,总结出适合的生产工艺制度,使钢材质量趋于稳定,达到国家标准。 1.钢材质量存在的问题与初步分析 Our 20MnSi Ⅱ-level thread rebar trial production process as follows: electric arc furnace smelting - poured into 8-inch ingot - 500 rolling mill into a blank 60 × 60mm - 300 rolling mill (φ16 ~ φ25mm rebar). Trial early, unstable steel quality, can not guarantee the use requirements. After the research, the corresponding measures are taken on the process, the factors affecting the quality of the 20MnSi rebar are initially explored, and the suitable production process is concluded, so that the quality of the steel tends to be stable and reaches the national standard. 1 steel quality problems and preliminary analysis