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国外许多棒材轧机同时具有直条生产线和大盘卷生产线。大盘卷的盘圆直径为φ12mm～φ32mm,最大直径可达φ50mm。 生产大盘卷的优点是: ①可以简化冷床输入辊道和上冷床装置的设计,缩短精轧机至冷床之间的距离和冷床长度。 ②可以采用更高的轧制速度。由于受冷床动作周期和上冷床机构的限制,小型轧机的轧制速度一般限制在18m/s,这样轧机的产量特别是生产小规格时的产量受到限制。采用成卷生产可以提高轧制速度,提高轧机产量。
Many foreign bar mills at the same time have a straight line and large coil production line. Tape reel diameter of φ12mm ~ φ32mm, the largest diameter of up to φ50mm. The advantages of producing large coils are: ① can simplify the design of the cooling bed input roller and the upper cooling bed device, shorten the distance between the finishing mill to the cooling bed and cooling bed length. ② can use a higher rolling speed. Due to the limitation of the cooling bed operation period and the upper cooling bed mechanism, the rolling speed of a mini mill is generally limited to 18 m / s, so that the output of the rolling mill is limited especially in the production of small size. The use of roll production can increase the rolling speed and increase the mill output.