本文简要叙述钢筋轧后控制冷却工艺和冷却器的设计;分析了水的流量,冷却器进出口水压力之比以及终轧温度等因素对冷却效率的影响,提出了影响B_3Fφ22mm园胡σ_s,σ_b值的主要因素是水的流量,影响δ_5的主要因素是终轧温度,仅采用一节冷却器就可使σ_s提高1.7～4.7kg/mm~2,塑性指标保持不降。 This paper briefly describes the control cooling process and the cooler design after the steel bar rolling. The influence of the water flow rate, the water pressure ratio of the cooler inlet and outlet and the finishing temperature on the cooling efficiency is analyzed. The values ​​of σ_s and σ_b that affect the B_3Fφ22mm The main factor is the flow of water. The main factor that affects δ_5 is the finishing temperature. The σ_s can be increased by 1.7 ~ 4.7kg / mm ~ 2 with only one cooler, and the plasticity index remains unchanged.