轧件通过冷床下的强制喷水雾化，提高了冷却效果；通过开／关冷却水管和采用水压控制，冷却速度能够得到调节。

所有的轧件均被送到冷床上的固***置，由移钢机构将轧件从步进梁上翻出并移至冷床的输出辊道上。

The water under the bed by forced atomization, the cooling effect is improved; through the opening or closing of cooling water pipe and the hydraulic pressure, the cooling speed can be adjusted.

All of the workpiece were sent to a fixed on the cooling bed, a steel moving mechani*** takes the output from the roller walking beam pulls out and moved to the bed on.

在经过改进之后，目前的轧机设备采用的是被动一轧一拖式生产方式，可以实现两道轧制成型，不仅解决了速度配合问题，而且改变了传统的四道轧制方式，生产效率明显提高。

After the improvement, the current mill equipment adopts a passive one rolling and towing mode of production, which can realize two rolling forming. It not only solves the problem of speed matching, but also changes the traditional four way rolling method, and the production efficiency is improved.

四棍轧机的工作辊直径较小，传递轧制力矩，轧延压力由直径较大的支承辊承受。这类设备的主要优点是相对刚度较大，压下量大、轧延力小，可轧制较薄的板材，也包括有可逆和连轧两种。

The working roll diameter of the four bar mill is ***all, and the rolling torque is transferred. The rolling pressure is borne by the backup roller with larger diameter. The main advantages of this type of equipment are relatively large stiffness, large reduction, low rolling force, thin rolled sheets, and reversible and continuous rolling two.