Teach you to solve the quality problem of aluminum sheet coil
In the production process of aluminum sheet coil, due to the equipment or personnel error emergy to quality problems such as reasons, aluminium is common quality problems summarized below here, hope the production department to attach importance to this problem.【aluminum sheet coil】
Oil is a common quality problems : pollution is refers to the aluminum surface after rolling with too much oil. And bring the excess oil, other than the rolling oil film in the process of cutting production and finished goods inspection visible surface with oil.These oil mainly by roll neck or mill on exports, bottom left, splash, dripping on the box, and the abnormal, rolling mill, rolling mill roller clearer thickness head drops of oil, and often complex than dirty.
The oil will be harmful to the surface of the aluminum sheet coil. The first is that the finished aluminum sheet coil must have a clean surface as a decorative or packaging material.The second is its thickness, which is easy to form in the subsequent annealing, and is affected by the excessive amount of oil in the area.The defect of oil pollution is a very important index to evaluate the quality of aluminum sheet coil.
Solution : strict inspection equipment before production, if once found in the device too much oil to wash and timely find the reasons, at the same time to board face cleaning products processing, if wash not to drop products do scrap processing, oil product storage and flow into the market is prohibited.Scratch is a regular feature of quality problems: scratches, bruises, and bruises are the continuous or continuous appearance of the aluminum sheet coil .It is usually produced when the sharp object is sliding relative to the surface of the foil.
The main reasons are: roller, guide roller surface have sharp defect, or stick to have hard sundry;Shear, coiling, cutting mechanical guide roller, guide road has pointed defect or dry and debris.Abrasion: a scar on the surface of a box that is caused by a relative slip or dislocation due to the interfacing of an object or the surface of the surface or the surface.
【aluminum sheet coil】
