侧壁斜度超差产生的原因为：

（1）辊型不正；压力过大，型钢与矫直辊间隙过小。

（2）辊子磨损、矫直机轴窜动过大，液压螺母没有锁紧或者止推轴承磨损过大都会引起侧壁斜度超差。

The reas* for the deviation of the side wall slope are:

(1) the roll type is not correct; the pressure is too large and the gap between the type steel and the straightening roller is too *all.

(2) the roller wears， the straightening machine shaft moves too big， the hydraulic nut is not locked or the thrust bearing wear too much will cause the side wall slope to exceed the difference.

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，冷拉报价， rolling disc cooling bed etc..

The rolling molding products through the conveyor i* the rack cooling bed， stepping teeth and other forms，冷拉设备厂家， 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，圣霖国际冷拉，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，冷拉，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 requireme*f the type of steel plastic change. The original deformation of the steel has reached the goal of uniform deformation.