Injection Molding
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Corrosion of PLA injection mold
Problem Phenomenon
The mold corrodes after long-term processing of PLA.
Cause Analysis
Trace lactic acid remaining from PLA processing or products condenses on the mold surface and corrodes the mold steel.
Solution
Use stainless steel or corrosion-resistant mold steel; clean the mold after production to prevent corrosion.
Key Takeaway
The corrosiveness of PLA to molds requires attention to material selection.
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