| 摘要 |
The invention relates to a system for producing multilayer composite tubes, comprising: a shaping device (30) for shaping a metal strip into a tubular body; a welding station (40) with a welding device (400) for welding the adjacent longitudinal edges of the tubular body; an extrusion device that comprises a first extruder (110), which is adjacent to the shaping device (30), is, when viewed in the direction of production (150), situated before the welding device (400), and which serves to apply a plastic inner layer to the tubular body, to which a third extruder (120) for applying an inner layer adhesion promoter is assigned, and; a second extruder (140), which is situated behind the welding device (400) and which serves to apply a plastic outer layer to the tubular body, to which a fourth extruder (130) for applying an outer layer adhesion promoter is assigned. |
