Injection Molding
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PMMA Injection Nozzle Problem
Problem Phenomenon
Drooling or blockage.
Cause Analysis
Improper nozzle temperature; PMMA becomes viscous as soon as the temperature drops.
Solution
①Calibrate nozzle temperature; ②screw suck-back; ③check heater band.
Key Takeaway
Nozzle = precise temperature.
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