Method and production system for the simple separation of scrap arising in the manufacture of extruded plates

Abstract

The disclosure provides a method for separating scrap produced during the manufacture of extruded sheets, wherein an extrudate of an extruder is fed to a calender comprising a plurality of temperature-controlled calender rollers, an actual temperature of at least one calender roll is measured, the actual temperature is compared with a nominal temperature provided for this calender roller, and in the case that a difference between the actual temperature and the nominal temperature lies outside a predefined tolerance amount, a part of an in particular endless semi-finished product exiting the calender is discharged as scrap. By treating that part of the semi-finished product which has been exposed to the wrong temperature as scrap, it is particularly easy to identify sheets that do not meet the desired quality requirements essentially without additional measuring effort, so that it is possible to easily discharge scrap produced during the manufacture of extruded sheets.

Dependencies are inferred from the claim text.