Injection Molding
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Improper barrel temperature setting of PLA '2079851475616104452 causing degradation
Problem Phenomenon
The barrel temperature is too high, causing PLA degradation and yellowing.
Cause Analysis
PLA has poor thermal stability; the temperature of each section is set too high, and it degrades rapidly above 200-220°C.
Solution
Set according to a decreasing curve: rear section 160-170°C, middle section 175-185°C, front section 180-190°C.
Key Takeaway
The PLA barrel temperature setting should be conservative.
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