Mechanical and physical properties of Aluminium can
be significantly improved with the addition of several alloying elements,
usually known as hardeners. In order to avoid alloying difficulties
these elements can be added into the melt in form of Master Alloys,
which means aluminium based alloys containing different specific hardener
concentrations.
Master Alloys dissolve into the melt at a high
speed, and alloying elements solution is achieved at low aluminium
liquid temperatures. This turns into important advantages such as
minimization of dross formation and gas pick-up, low energy consumption
and longer furnace life.
For these reasons, Master Alloys represent nowadays
the most convenient and economical solution for the addition of alloying
elements into aluminium, in order to achieve optimal properties for
the highest quality products