Solution heat-treatment (Topic: 10043)

The term solution heat-treatment means heat-treatment of a metal with the purpose to solve particles precipitated in the matrix. It is done by heating the material to a temperature above the solution temperature of the actual particles and soaking for a period of time.

In extrusions of 6000-alloys one is so fortunate that the alloys can be extruded at a temperature above the solution temperature for Mg2Si, so that the extruder need only to extrude with a suitable combination of billet temperature and extrusion speed to get a proper exit temperature on the material.