Molds & Tooling
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PLA product sticking to mold
Problem Phenomenon
Products stick to the mold.
Cause Analysis
PLA's hot tack interacts with the mold surface; high mold temperature or insufficient draft.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
① Appropriately lower mold temperature; ② increase demolding draft; ③ polish or texture the mold surface; ④ standardize release agent.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Mold sticking is solved from temperature and structure.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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