Single Screw Extruders, Twin Screw Extruders
 Home > FAQ
Single Screw Extruder General Electric unit to deal with failure
 
System Name Phenomenon Reason Approach
Temperature Control System The temperature is too high in one section of the host A.  Cooling system failure (water)
A1.Electromagnetic valve did not work
A2.Cut-off valve to close
A3.Cooling water pipes to plug the road
B.  Cooling system failure (air)
B1.Fan did not work
B2.Fans not to
B3.Small air switch action
C.  PLC temperature control or  regulation of failure
D.  SSR or damage Triac
E.  Screw combination of strong cut-off
A1. Solenoid valve wiring inspections, inspection or replacement of the solenoid valve.
A2. Cut-off valve to open, the right to regulate the flow position.
A3. Cooling water pipes to clear the road.
B1. Check wiring fan, fan inspection or replacement of
B2. To adjust fan wiring
B3. Small air reset switch
C1. To amend or PLC-conditioning temperature control parameters, and then observed
C2. Check temperature of or PLC, the replacement of temperature control or PLC module
D. Replacement of solid-state relay or two-way thyristor
E. Portfolio adjustment screw
Temperature is too low in one section of the host A.   PLC temperature control or regulation of failure
B.   Small heater power
C.  Cooling system failure (water)
C1.Cooling water temperature on the low side
C2. Electromagnetic valve spool stuck
C3. Valve open through the Great
D.    Portfolio not screw shear
E.    Host screw speed on the low side
A1. To amend or PLC-conditioning temperature control parameters, and then observed
B.   Replacement of large power heater
C1.Cooling water temperature rise after observation
C2.Cooling water temperature rise after observation
C3.Check valve and opening-conditioning
D. Portfolio adjustment screw
E. Screw speed will be increased appropriately, and then observed
Host system Automatic parking A. Cooling fan stopped
B. Lubricating oil pump stops
C. Lubricating oil pressure is too high or too low
D. Melt pressure gauge
E. Governor faults (lack of phase, under-voltage, over-current, overload, overheating, etc.)
F. Host system and other accessory equipment failure of the chain
A. Cease to identify reasons for dealing with the re-start
B.    Clean or replace the oil filter
C1. Check melt pressure alarm settings is appropriate
C2.  Head replacement filters
C3.  Nose temperature is too low
C4.  Nose module is to plug holes
D. Manual control governor resolve to deal with, overload, over-current phenomenon should check:
E1. Host screw it hard to enter foreign body
E2. Host temperature is set too low
E3. Feed volume is too large and granular feed is too large
E4.  Screw components, transmission gear box bearing are damaged
F.    To identify the reasons for failure, dealing with the re-start
Feeding System Automatic parking A. Main Motor stop
B. Governor faults
C. Mechanical failure
A. Check to deal with some of the host system
B. Manual control governor dealing with the
C. Please machinery, electrical inspection staff to deal with (Feeder whether foreign body, feed particles is too large, whether in the form of Feeder and materials do not match)
Lubrication system Pump not working A. Did not start
B. Overload
C. Mechanical failure
A. To identify the reasons for stopping pumps to deal with after the restart to solve
B. Please machinery, electrical inspection staff to deal with
Oil pressure warning A. Oil off oil
B. Dirty oil filter plugging
C. Set too low oil pressure
D. Lubricating oil viscosity is too high
A. Please mechanical inspection staff to deal with
B. Clean or replace the oil filter
C. Reset oil
D. Replacement of low-viscosity grade lubricants
Cooling water system Pump not working A. Did not start
B. Overload
C. Mechanical failure
A. To identify the reasons for stopping pumps, dealing with the re-start
Cooling water does not pass A. Pump did not work
B. Solenoid valve is not open
C. Cut-off valve is not open
D. Lack of water tanks
E. Pump intake plug
F. Abnormal pump
A.    To identify the reasons for stopping pumps,dealing with the re-start
B1. Check electrical lines 
B2. Check electromagnetic valve replacement or 
C.   Check valve replacement or
D.   Provides water to the water level
E.   Clean-up outlet
F.    Please machinery, electrical inspection staff
Vacuum system


Vacuum pumps did not work

No indicates on vacuum pump table

A. Did not start
B. Overload
C. Mechanical failure
A. Vacuum pumps did not work
B. Road tube condensation can not open the valve
C. Vacuum system leakage
D. Vacuum pump inlet valve is not open or opened too small to spend large
E.  plug the vacuum pump emissions
A. To identify the reasons for stopping pumps to deal with after the restart to solve
B.Be checked by machinery, electrical staff
A. Reference to the above section 
B. Open the valve
C. Be checked by machinery, electrical staff
D. Water conditioning vacuum pump and open the valve
E. Clean up emissions to make it work easier.
1 page/1 results