Molds & Tooling
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POM workshop temperature management
Problem Phenomenon
When the workshop day-night temperature difference is large, POM dimensions drift between morning and evening
Cause Analysis
Ambient temperature changes affect mold heat dissipation and material temperature, indirectly fluctuating process conditions; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Constant temperature management of the precision parts workshop; strengthen dimensional sampling of first articles in morning and evening; automatic mold temperature compensation; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Precision molding must control the ambient temperature variable; 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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