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1 前言 南钢棒材厂是在原一炼钢车间基础上于1981年改造成的棒材生产单位,原二火成材,设计年产10万t。1997年达到20万t,1998年初进行简易一火成材改造,建成中轧顺列、精轧无张力轧制、二台飞剪分别切头尾和倍尺分段的半连轧生产线,实现130~2一火生产Φ12mm～Φ32mm的圆螺钢筋。由于工艺和装备不先进,因此,现在正于我厂副跨(原主电室、精整包装区的位置)新建一条全平立、全连续的棒材生产线,将于2000年4季度建成投产。此生产线工艺及改造概况如下。
1 Foreword Nangang Steel Bar Factory is a bar production unit transformed into the original steelmaking workshop in 1981, with an annual output of 100,000 t. In 1997 it reached 200,000 t. In the beginning of 1998, a simple fire was completed and a series of semi-continuous rolling lines were cut out, including rolling in-line, finish rolling without tension rolling, ~ 2 a fire production Φ12mm ~ Φ32mm round spiral steel bar. As the technology and equipment are not advanced, therefore, we are now building an all-flat, fully-continuous bar production line in our auxiliary span (original main electric room, finishing packing area) and will be put into operation in 4Q 2000. The production line technology and transformation outlined below.