This paper analyzes the cause of shrinkage cavities on cast aluminum slab ingots,then puts forward stratagem and solution preventing ingot surface shrinkage cavities.

Various bending causes occurred during production of aluminum alloy slab are analyzed combined with the actual situation of using vertical well to cast 3003,1100 aluminum alloy slab in certain plant.

The specification and width/thickness ratio of 7050 aluminum alloy billets are both bigger, so they have much bigger trend to crack while casting.

At present there are many casting defects, such as cracks, bending, slag, shrinkage, ingot surface compositions of segregation, during the production of the flat ingot of Al-Zn-Mg-Cu alloy.

Introduction and analysis on drafit of International standard of aluminum ingot;

Realization of Fuzzy Control System Based on PLC for Aluminum Ingot Casting Machine;

And also a method for the determination of micro amount of Al_2O_3 in aluminum ingot samples by spectrophotometry with aluminon as chromatogenic agent has been developed.