清洗彩涂铝卷时要注意什么问题?
在彩涂铝卷冷轧过程中,由于轧辊与铝板之间的摩擦和轧制,会有细小的氧化铝粉末脱落并吸附在表面。轧制油及其伴生的悬浮组分会残留在彩涂铝卷表面,对铝卷的复合材料、涂层等产品和加工产生非常不利的影响。在彩涂铝卷拉弯矫直过程中,由于带钢在轧辊上的变化和严重的弯曲结构变形,施加在带钢上的张力很大一部分转化为带钢在张力辊上的压力,最终形成摩擦力驱动辊组。
如果
彩涂铝卷线圈表面没有用氧化铝清洗,氧化铝粉会塌陷变形,由于张力辊与油辊表面相连,造成辊面磨损,铝和小损伤,必须用专用的清洗装置进行清洗。
彩涂铝卷清洗方法是利用工作压力泵对清洗介质加压,对带钢表面进行非接触喷涂或接触刷涂,使材料表面的铝粉油溶解掉到清洗介质中,然后通过挤压辊和高压控制吹风对铝卷进行干燥,即使温度过高也会影响空气干燥,从而得到干净干燥的铝卷。
同时,通过不断补充清洗介质,与在线循环过滤系统配合使用,使清洗介质保持足够的量和清洁度,大大节约了热能和清洗介质。目前弯曲矫直机常用的清洗介质有清洗剂、软化热水和化学溶剂。
During the cold rolling process of aluminum coil, because of the friction and rolling between the roll and the aluminum plate, some tiny aluminum oxide powder will fall off and adsorb on the surface. The rolling oil and its associated suspended components
will remain on the surface of aluminum coil, which has a very adverse impact on the aluminum coil composite, coating and other products and processing. During stretch bending straightening, due to the change of the strip on the roll and the severe
bending structure deformation, a large part of the tension applied to the strip is transformed into the pressure of the strip on the tension roll, and finally the friction force can be formed to drive the roll group.
What should be paid attention to when cleaning Taiyuan aluminum coil? Pictures of
If the coil surface is not washed with alumina, the alumina powder collapses and deforms, as the tension roller is connected to the surface of the oil roller, the
wear of the roller surface, aluminum and small damage are caused, it must be cleaned by a special cleaning device.
The aluminum coil cleaning method is that we use the working pressure pump to pressurize the cleaning medium, and the surface of the
strip can be non-contact spraying or contact brushing, so that the aluminum powder oil on the surface of the material can dissolve and fall off into the cleaning medium, and then the aluminum coil can be dried by squeezing roller and high pressure controlled
air blowing, and even high temperature can affect air drying, so as to obtain a clean and dry aluminum coil.
At the same time, by continuously replenishing the cleaning medium and using it together with the on-line circulating filtration system,
the cleaning medium can be kept in sufficient quantity and clean, which greatly saves the heat energy and cleaning medium. At present, the commonly used cleaning media for bending straightener are cleaning agent, softened hot water and chemical solvent.