Plasticising temperature steadily increasing on Engel Victory 80ton
The program has been running for months fine until now, with all temperatures stable during the production cycle. We are now getting a Temp too high on Zone 3 of 4 ( 4 being the hopper, 1-nozzle). The barrel heater in zone 3 does not even show as being on during the production cycle, but the zone 3 heats up 2-3deg on every plasticising stroke, and just keeps on heating up.
The temperature is stable when in stand-by which makes me think the sensor is ok. Material is PEEK, temps are from 350-390deg C up through each zone.
Plasticising back pressure is on 6bar, now when reduced to 0, then the material stops heating up. Is this a mechanical problem? or program parameter that has changed?
u/baronsamedi1982 — 2 days ago