以高碳盘条SWRH82B为研究对象,基于精轧工艺,采用Gleeble-1500D热模拟试验机对高速线材精轧F1~F4道次变形进行了热模拟,研究了其再结晶行为,确定出最佳精轧出、入口温度;同时测定了试验钢的连续冷却转变曲线。通过分析冷却速度对82B盘条组织演变规律的影响,对轧件吐丝后在斯太尔摩冷却线上的冷却工艺进行优化。结果表明:最佳精轧出、入口温度分别为1020、950℃;当冷速范围为6~8℃/s时索氏体组织片间距最为细小,直到冷却速度10℃/s时才不形成马氏体。研究成果能为82B线材控轧控冷以及组织性能控制提供实验依据。 High-carbon wire rod SWRH82B was taken as the research object. Based on the finish rolling process, the Gleeble-1500D thermal simulation tester was used to simulate the deformation of F1 ~ F4 high-speed wire rod rolling. The recrystallization behavior was studied and the optimum Finishing out, inlet temperature; simultaneously measured the continuous cooling of the test steel transformation curve. By analyzing the influence of cooling rate on the microstructure evolution of 82B wire rod, the cooling process on the cooling wire of Steyr motor after the wire spinning is optimized. The results show that the optimum finish rolling temperature and inlet temperature are 1020 and 950 ℃, respectively. When the cooling rate is in the range of 6 ~ 8 ℃ / s, the spacing of sorbite is the smallest, and it does not form until the cooling rate is 10 ℃ / s Martensite. The research results can provide experimental evidence for controlled rolling and controlled cooling of 82B wire and control of microstructure and properties.