Temperaturstyrning av aluminiumextruderingsprocess
In this final thesis a rough description of aluminium extrusion is made, the importance of temperature of both the raw material and the extruded profile for a good profile quality. The difficulty in controlling these temperatures are discussed and attempts to increase the control are described. The attempts are basically made by controlling the furnace that is heating the raw material. This is done in a manner that the raw material reaches its final temperature shortly before it is extruded. An IR-camera at the press can be used for profile temperature measurements. The profile temperature is in turn used to decide the raw material temperature. Finally some proposals are given that can lead to a more controlled temperature at raw material and profile.