METHOD AND DEVICE FOR PRODUCING A COMPOSITE PROFILE AND COMPOSITE PROFILE

摘要

The invention relates to a method and device for producing a composite profile made of extrudable plastics, wherein a first profile (1) is first extruded and then cooled in a calibration fixture until a dimensionally stable state is reached, then extrusion coated in an extrusion coating zone (3, 18, 19) by at least one second profile (2), characterized by treating by a mechanical and/or chemical pretreatment, by changing the ambient pressure in a pretreatment zone (4, 14, 15) and/or by irradiation by laser radiation (40) for heating the first profile (1), wherein said treatment is upstream of the extrusion coating zone (3, 18, 19) in the direction of extrusion (E).