Calendering
Calendering is a process that usually uses four heated rolls rotating at slightly different speeds. PVC is the most commonly calendered material. Again the material is fed into the rolls, heated and melted, and then shaped into sheet or film.
A Calendering method is in which we extrusion may be subjected to pressure variation such as a vacuum with the controlled shaping of the plastic being obtained by power driven rolls within the chamber downstream of the die.
Other related extrusion processes are
- Profile Extrusion
- Overjacketing
- Pipe Extrusion
- Lamination
- Sheet Extrusion etc.
|
