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压型彩涂铝板加工厂家油污等外观问题及处理

返回列表 来源: 发布日期: 2020.06.18

 压型彩涂铝板加工油污等外观问题及处理

压型彩涂铝板以其重量轻、强度高、色彩丰富、安装方便等优点,逐渐受到设计人员的青睐,广泛应用于各种钢结构建筑中。但在压型铝板的生产过程中,会出现油污、划伤等问题。向您介绍有关石油污染问题的知识:

油污是指轧后铝尖表面过多的油和除轧制油膜外的多余油。在分条生产和成品检验过程中肉眼可见。油污主要是由于辊颈或轧机出口处的箱体表面甩油、飞溅、滴落、轧机滚筒清洁器异常、轧机测厚头上滴落油污等造成的,且往往比较脏、复杂。
油污危害:在后续退火过程中,表面不清洁,容易形成气泡,且因油量过多而产生过多残渣,影响使用。
解决方案:生产前严格检查生产设备。如果设备油太多,要及时清洗,找出原因。同时,对生产产品进行清洗和加工。不能清洗的产品报废的,禁止油类污染产品进库入市。
外观问题:刮痕、擦伤、碰伤是铝板表面间歇性或连续性的单槽伤痕,一般是尖锐物体与箔面接触而相对滑动时产生。
主要原因:轧辊和导辊表面有尖锐缺陷或硬杂物;机械导辊和剪切、收口、分切导道上有尖锐缺陷或干杂物;箱材表面因边缘与表面相对滑动或错位而产生的串痕和分布的疤痕,或者在表面接触之后
钢板表面的油污严重影响产品的外观质量。通过优化铸轧带钢质量,控制冷轧油质量和工作辊粗糙度,加强冷轧板表面除油和横切矫直机清辊,有效控制了板表面油污。

With its light weight, high strength, rich color and convenient installation, profiled aluminum plate is gradually favored by designers and widely used in various steel structure buildings. However, in the production process of profiled aluminum plate, there will be oil pollution, scratches and other problems. Introduce the knowledge of oil pollution problems to you:

Greasy dirt refers to the excessive oil on the surface of aluminum tip after rolling and the extra oil except rolling oil film. It can be seen by naked eyes in the process of slitting production and finished product inspection. The oil is mainly caused by the rejection, splashing, dropping on the box surface at the roll neck or at the exit of the mill, the abnormity of the mill's roller cleaner, and the oil dripping on the thickness measuring head of the mill, etc., and it is often more dirty and complicated.
Oil pollution hazard: the surface is not clean and easy to form bubbles during subsequent annealing, and the use is affected due to the excessive amount of oil forming excessive residues there.
Solution: strictly check the production equipment before production. If there is too much oil in the equipment, clean it in time and find out the reason. At the same time, clean and process the production products. If the products that cannot be cleaned are scrapped, the products with oil pollution are forbidden to enter the warehouse and enter the market.
Appearance problems: scratches, scrapes and bruises are intermittent or continuous single groove scars on the surface of aluminum plate, which are generally generated when sharp objects contact with the foil surface and slide relatively.
Main causes: sharp defects or hard sundries on the surface of roll and guide roll; sharp defects or dry sundries on the mechanical guide roll and guide road of shearing, closing and slitting; bunches and distributed scars on the surface of box material caused by relative sliding or dislocation between edges and surfaces, or after the contact between surfaces
The oil pollution on the surface of the plate seriously affects the appearance quality of the product. The oil pollution on the surface of the plate has been effectively controlled by optimizing the quality of the cast rolling strip, controlling the quality of the cold rolling oil and the roughness of the working roll, strengthening the oil removal on the surface of the cold rolling plate and the roll cleaning of the cross cutting straightener.

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