工艺过程是：线材出精轧机后先入水冷导管进行急冷，冷床设备价格，冷却到650～750℃，冷床，经成圈器成圈后落入流态床中。流态床用流动的、导热性好的粒料(锆砂，含ZrO267.2%；SiO232.8%)作媒介，用鼓风机搅动这些颗粒呈悬浮运动状态，如同铅浴池中的铅液沸腾一样。

The process is as follows: after the wire is finished， the first step is to enter the water cooling pipe and then to cool it to 650~750 degrees. The flow bed is used as a medium for flowing， good thermal conductivity particles (zirconium sand， containing ZrO267.2%; SiO232.8%). The particles are stirred by the blower to move in suspension， just as the lead liquid in the lead bath is boiling.

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，冷床设备，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.

优化水量，冷床报价，优化步距。尽可能的使型钢完整进入水区，加强现场通风，保证型钢进入水区前温度小于400℃。水冷时间不宜过长，因为冷却时翼缘为拉伸—压缩—拉伸过程.

Optimize the amount of water and optimize the step distance. As far ， the steel can be fully entered into the water area， and the field ventilation is strengthened. The temperature of the steel before entering the water area is less than 400. The time of water cooling should not be too long， because the flange of the wing is stretched， compressed and stretched.

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