呼钢线材车间原由φ400×2,φ300×3,及φ250×5,φ250×3,三列四组横列式轧机组成,历史最高年产量为3.86万吨,经廿多年的生产使用,不仅工艺落后,设备亦已陈旧,已不能适应改善质量、提高产量的要求。如粗、中轧机列轧制周期分别为10.5秒及8秒,而精轧机列轧制单根时为40秒,轧制双根时为34秒,这就限制了整个车间生产能力的发挥;精轧机列采用活套轧制,因其轧件长,头尾温差大,影响产品质量。为了 The steelmaking workshop originally consists of φ400 × 2, φ300 × 3, φ250 × 5, φ250 × 3, three rows of four-row rolling mill. The highest annual output is 38,600 tons. After more than 20 years of production and use, , The equipment is also obsolete and can no longer meet the requirements of improving quality and increasing output. For example, the rolling cycle of the roughing and medium rolling mill is 10.5 seconds and 8 seconds respectively, while the rolling speed of the finishing mill is 40 seconds when rolling a single piece and 34 seconds when rolling a double root, which limits the production capacity of the whole workshop; Rolling mill column rolling, because of its long rolling, head and tail temperature, affecting product quality. in order to