HRB500E细晶粒热轧抗震钢筋生产工艺及品种开发  

HRB500E Fine Grain Hot Rolled Seismic Steel Bar Production Process and Variety Development

作　　者：倪晓东 王利 Ni Xiaodong;Wang Li(Technology Center,Fushun New Steel Co.,Ltd.,Fushun Liaoning 113001,China)

机构地区：[1]抚顺新钢铁有限责任公司技术中心,辽宁抚顺113001

出　　处：《山西冶金》2024年第3期155-157,共3页Shanxi Metallurgy

摘　　要：根据抚顺新钢铁公司现有新棒材生产线工艺和装备条件,采用钒氮合金强化作用机制,充分利用控制轧制与控制冷却工艺,实现热轧抗震钢筋的细晶强化和析出强化。通过合理调控道次变形量、变形温度、变形速度和冷却速度,成功开发出了Φ20~Φ32 mm规格、强屈比≥1.25、轧后组织晶粒度不粗于9级的HRB500E细晶热轧抗震钢筋,钢筋机械性能全部满足国标对抗震钢筋的技术要求。In this paper,according to the process and equipment conditions of the existing new bar production line of Fushun New Iron and Steel Company,vanadium and nitrogen alloy reinforcement mechanism is adopted,and the controlled rolling and cooling process are fully utilized to realize the fine grain reinforcement and precipitation reinforcement of hot-rolled seismic reinforcement bars.By reasonably regulating the amount of deformation,deformation temperature,deformation speed and cooling speed of the passes,HRB500E fine-grained hot-rolled seismic reinforcement bars with specifications of Φ20~Φ32 mm,strength/flexure ratios≥1.25,and grain size of the rolled tissue not coarser than grade 9 have been successfully developed.The industrialized production process of HRB500E fine grain steel bars of different specifications has been determined,which effectively reduces the amount of alloying elements added,greatly reduces the production cost,and has good economic and social benefits.

关 键 词：HRB500E 细晶粒 抗震钢筋 金相组织 强屈比 

分 类 号：TG142.7[一般工业技术—材料科学与工程]