目前，国内各中型轧钢车间的钢坯冷床，其结构形式基本上是往复移钢式或水平推钢式２种。缺点是冷却能力不足，钢坯下床温度过高，有时在５００℃以上，极易造成钢坯弯曲。并且冷床较笨重，占地面积大，造价高，维修量大。我厂从１９８０年开始，经过多年的反复论证和准备，于 At present, the domestic medium-sized steel rolling plant billet cooling bed, the structure is basically reciprocating steel or horizontal push steel 2 kinds. The disadvantage is the lack of cooling capacity, billet get out of bed temperature is too high, sometimes above 500 ℃, can easily lead to billet bending. And more bulky cold bed, covers an area of ​​large, high cost, large amount of maintenance. I plant from 1980 onwards, after years of repeated demonstration and preparation, in