Wrinkle extrusion coating failure analysis of five

V. Rolling up and wrinkling

cause

1. Raw material substrate cut off.

2. Core traces of the core.

3. The speed of the foil axis and the new axis differ when changing the roll.

4. The balance pressure of the contact roller (press roller) is inappropriate when changing the roll.

5. Change in tension caused by the pressure roller when changing rolls.

Approach

1. Improve the accuracy of truncation and completely roll in the cut-off ends.

2. The surface of the core is smoothed; there is no tape reeling (it is advantageous to use a large-diameter reeling core in the setting to eliminate wrinkling of the core).

3. Make it faster.

4. Adjust the contact roller (pressure roller).

5. Make adjustments or improve machine mechanisms.