Extruder barrel section with cooling and heating system

摘要

An extruder barrel section (200) is disclosed. The extruder barrel section (200) comprises of a first barrel pad (204) and a second barrel pad (206). The first and second barrel pad co-operating to define a recess configured to receive an extruder liner (202). The length of the first and second barrel pad is less than the length of the extruder liner such that the extruder liner defines an end surface (734) that projects beyond the extruder barrel section on at least one side. The end surface (734) is configured to abut the end surface of another extruder liner (202). The extruder barrel section further comprises of a locking structure (208) configured to lock the first barrel pad (204) to the second barrel pad (206) with the extruder liner (202) therebetween.