冷床主要有拔齿式冷床、齿条步进式冷床、拨爪式冷床、运载链式冷床、滚盘式冷床等。
将已轧制成型产品通过辊道输送进入冷床，再由齿条步进式拔齿等形式，将排列在冷床上的工件逐步移向冷床顶端，达到了工件的冷却效果。
The main bed tooth pulling type cooling bed, rack step type cooling bed, poking claw type cooling bed, carrier chain cooling bed, rolling disc cooling bed etc..
The rolling molding products through the conveyor into the rack cooling bed, stepping teeth and other forms, will be arranged in workpiece cooling bed is gradually moved to the top of the bed, the cooling effect of the workpiece.
轧件在冷床冷却过程中由于冷却水不能均匀分布在型钢表面，头部冷却速度较快，***弯曲，形成浴盆状，使腹板上的积水不能流出，导致上表面收缩率明显大于型钢下表面，产生上弯。
为消除不均匀变形，首先应该使2辊压下量足够大，满足型钢塑变要求。消除型钢原有变形，达到统一的变形的目的。
Rolling in bed cooling process due to the cooling water can not be uniformly distributed on the surface of steel, the head of the fast cooling rate, the first bend forming tub shaped, make web water can not flow, resulting in the surface shrinkage rate was significantly higher than that of the steel surface, due to bending.
In order to eliminate the uneven deformation, first of all, the 2 roller should be large enough to meet the requirement of the type of steel plastic change. The original deformation of the steel has reached the goal of uniform deformation.
保证合理有序的过钢节奏，加大矫直测量次数，确保矫直中心在一条直线上。制定矫直辊装配标准，保证安装正确，有据可查。建立BH值与矫直辊间距的关系，做到合理配辊，保证辊缝在1－3mm之间。
Ensure a reasonable and orderly flow of steel rhythm, increase the number of straightening measurement, to ensure that the straightening center in a straight line. The assembly standard of straightening roller is set up to ensure that the installation is correct and can be checked up. The relati***hip between the BH value and the spacing of the straightening roller is established, and a reasonable roll matching is made to ensure the gap between 1 and 3mm.