Aluminium Heat Treatment

The quality of solution annealed and age hardened aluminium and aluminium alloys increases strongly with temperature uniformity as well as with the speed of heat transfer. For this reason, liquid salts are the best choice.

They are well known for their excellent temperature constancy and provide:

• The quickest heat transfer by contact which successfully oppresses grain growth producing a very fine core structure.
• Avoidance of deleterious precipitation of alloying elements on grain boundaries since the remaining salt film on the parts prevents from critical cooling effects during transfer into quenching station.
• Shortest treatment times