Injection Molding
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POE surface periodic corrugation
Problem Phenomenon
POE product surface periodic corrugation, spacing 5-15mm
Cause Analysis
Injection speed periodic fluctuation; hydraulic system unstable; screw speed unstable
Solution
1) Overhaul injection system to stabilize pressure and speed; 2) Servo motor drive replacing hydraulic drive; 3) PID control to stabilize injection parameters
Key Takeaway
Corrugation is caused by injection instability; equipment overhaul and PID control are key
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