Several common aspects of the bad phenomenon of stamping parts coil material

The common defects in the coil material of stamping parts are mainly as follows: 1. There are foreign objects on the surface or inside of the steel plate, the foreign objects are peeling off, and the coil is in a scar-like state; 2. Scratches (caused by the surface of the roller or foreign substances), edge The corners (20～30mm) are deformed or crumpled due to uneven stress, and the corners of the coil are damaged; 3. The roll is caused by sliding, and the foreign body is pressed out on the back of the coil after the foreign body enters (the foreign body will disappear when it falls); 4. Edge Irregular damage, poor material beyond the rules; 5. Roll traces (caused by foreign matter attached to the roll), foreign matter causes obvious groove marks on the surface. Through actual use, it is known that scratches (caused by the surface of the roller or foreign matter), foreign matter enters the bulge on the back of the roll (the foreign matter disappears when it falls) and the roller trace (caused by foreign matter adhering to the roller) is in use Favorite problem. The solution is simple, and the disappearance of the foreign body is the direct method. Related news: The characteristics of the main materials of stamping parts, the handling of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections