Reasons for Black Skin and Layering on the Surface of Hot Rolled Aluminum Plates

Black skin,

the edge of the rolled material of the aluminum plate should be cut more fully, so that black skin will not be produced.

Tissue stripes,

the measures are to make solidification and cooling more reasonable and make the grain refinement more appropriate to prevent uneven grain structure of the injection block.

The reason for the stratification of the aluminum plate may be

the shape of the ingot is not suitable.

Or the heating is uneven or the pressing amount is too large.

The edges of the aluminum plate should be cut off more to prevent delamination.

Proper edge rolling can also prevent delamination.