Reasons for peeling and cracking on the surface of aluminum plates

Aluminum plate peeling aluminum plate surface peeling may be due to

the poor surface flatness of the ingot, or incomplete surface washing;

the heating time is too long, resulting in severe surface oxidation.

Cracked edge,

the ingot of the aluminum plate is not fully quenched, and the destined gate is not completely cut off.

In high-magnesium alloys, too high sodium content in the injection block will also cause fission.

In addition, the hot rolling temperature is too low and the reduction rate is not properly controlled, which will lead to cracked edges.

When the hot rolling rolling amount is too small, the aluminum plate is not placed correctly and unevenly, so that one side is not fully aluminum-wrapped, resulting in fission edges.