Causes and treatment methods of indentation on the surface of stainless steel strip

1. Defect characteristics
The non-periodic or periodically distributed concave-convex imprints on the surface of the stainless steel strip are called indentations.
2. Causes and hazards:
cause:
1) The foreign matter is pressed in and forms a pit after falling off
2) The roll is peeled off, the roll is broken, and foreign matter is stuck on the surface of the roll.
Hazard: Holes or broken belts may occur during subsequent processing and use.
3. Methods of prevention and elimination
1) Prevent foreign objects from being pressed in;
2) Strengthen the surface quality inspection and grinding of the rollers of the unloading trolley, and replace the rollers regularly;
3) Strengthen the inspection of reels and unloading trolleys to prevent parts from loosening;
4) Carry steel coils carefully to prevent mechanical damage;

5) To prevent strip deviation.