來源：http://www.yiyuankj.cn 發布時間：2022-12-29 19:57:22
Oil stain refers to excessive oil on the surface of aluminum tip after aluminum coil rolling. In addition to rolling oil film, it also contains excess oil, which can be seen visually in slitting production and product inspection. The oil is mainly formed by roll neck or mill outlet throwing up and down, splashing, dropping on the box surface, abnormal mill cleaner, and oil dripping from the thickness measuring head of the mill, and the dirty ingredients are often messy.
The aluminum coil manufacturer reminds you that this oil stain will cause great harm to the appearance of aluminum coil. First, aluminum coil products are mostly used as decoration or packaging materials, and must have a clean appearance; Second, the thickness is thin, and subsequent annealing is easy to form bubbles, affecting the use. Due to the large amount of oil, there is too much residue here. The defect of oil stain is a very important index to evaluate the quality of aluminum foil.
Strictly check the production equipment during production. If too much oil stain is found in the equipment, it shall be cleaned in time to find out the cause, and the production products shall be cleaned and processed at the same time. If the products that cannot be cleaned are invalid, oil contaminated products are prohibited from entering the store.
In addition, scratches, scratches are intermittent or continuous single groove scars on the aluminum coil surface. Generally speaking, when the sharp object slides relative to the foil surface after contact. The surface of roll and guide roll has sharp defects or is stuck with hard debris; Mechanical guide roller, shear, roll, slitting mechanical guide roller and wire have sharp defects or withered impurities. Scratches: The scars distributed by bundles (or groups) are relatively sliding or wrong due to the edges and surfaces between objects, or after the surface contacts with the surface.
The reason why the oil stain will cause great harm to the appearance of the aluminum coil is that the above contents can be used as reference information, and more relevant matters can be found on our website http://www.yiyuankj.cn consulting service