Scratches, scrapes and bruises on the surface of aluminium sheets

Scratches, scrapes and bruises on the surface of aluminium sheets

In the production process of aluminum sheet and strip, because of equipment or personnel operation errors and other reasons prone to quality problems, here Haomei Aluminum on common quality problems are summarized below, I hope the production department can pay attention to the problem.

Scratch is a frequent guest of quality problems: scratch, scrape, bruise is the surface of the aluminum plate presented intermittent or continuous . Single groove-like scars. They are generally produced by the relative sliding of sharp objects in contact with the surface of the foil.

The main reasons for this are: rolling rolls, guide rolls with sharp defects on the surface, or hard debris; shearing, coiling, slitting machinery guide rolls, guide paths with sharp defects or withered debris. Abrasion: due to objects between the prism and face, or face and face contact after the relative sliding or misalignment and in the box material surface caused by the bunch (or group) distribution of scars.