The following are some problems and solutions that may occur during the use of PVC profile extruder:
Problem 1: The extrusion volume is unstable
Reasons: uneven feed, screw wear, heating temperature instability.
Solution: ensure uniform feed; Check and replace worn screws; Check the heating system and repair or replace faulty heating elements.
Problem 2: The surface of the profile is rough
Reasons: mold wear, low temperature, uneven material mixing.
Solution: Replace or repair the mold; Increase the temperature setting to ensure that the material is fully melted; Optimize the material mixing process.
Problem 3: Profile size deviation
Reasons: unstable traction speed, mold damage, insufficient extrusion pressure.
Solution: stabilize the traction speed, check and maintain the traction equipment; Repair or replace damaged molds; Check extrusion system and increase extrusion pressure.
Problem 4: Material in the barrel "bridge"
Reason: the material humidity is high, the design of the discharging port is unreasonable.
Solution: dry the material; Improve the structure of the blanking port.
Problem 5: Extruder abnormal noise
Reasons: transmission parts wear, screw and barrel clearance is too large, foreign matter into.
Solution: Replace the worn transmission parts; Adjust the gap between the screw and the barrel; Stop the machine to remove foreign objects.
Problem 6: There are bubbles in the product
Cause: material damp, poor exhaust.
Solution: Dry materials; Check and clean the exhaust system.
Problem 7: Extruder main motor overload
Cause: screw speed is too fast, material blockage, transmission system failure.
Solution: reduce the screw speed; Remove clogging materials; Check and repair the transmission system.
