CALIBRATING DEVICE

摘要

The invention relates to a calibrating device for an apparatus that is used for producing plastic pipes, tubes, films, or similar by an extrusion process. Said calibrating device comprises at least two calibration tools with curved sections which are to rest at least in part on the circumference of the object that is to be calibrated. At least one curved section (10) of at least one calibration tool (11) is provided with a curve shape that deviates from the shape of a circular arc.