Extrusion production line-plastic extrusion profile production line

Plastic extrusion profile production line is a kind of plastic mechanical products, in addition to this kind, there are plastic pipe production line, plastic plate production line and so on. The plastic extrusion profile production line is mainly used to produce plastic door and window profiles, plastic decorative panels, PVC foam profiles and other plastic products. The extrusion technology of plastic profile can be divided into organic extrusion and inorganic extrusion according to the different extrusion materials. Organic extrusion includes extrusion of the same material (such as fine materials and recycled materials), extrusion of different materials (such as PMMA and PVC) and extrusion of soft and hard PVC; Inorganic extrusion can be divided into aluminum-plastic composite extrusion and steel-plastic composite extrusion.

This paper mainly introduces the post-extrusion, aluminum-plastic composite profile extrusion, steel-plastic composite profile extrusion and two-color extrusion technology.

Compared with the traditional * * * extrusion (FCE) technology, the post * * extrusion plastic profile extrusion technology has the remarkable characteristics of simple process, flexible application, low rejection rate, easy recycling and controllable bonding strength. At present, this technology is mainly used to manufacture door and window profiles with sealing strips.

The traditional extrusion technology of plastic profile is one-step molding technology. Two or more extruders extrude molten materials with different rheological behaviors or different colors into the same molding die, and these melts flow in their respective channels in the molding die, and then they are extruded together at the die, evacuated in the setting sleeve, cooled and set.