Injection Molding
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PESU Shrinkage and Precision Thin-Wall
Problembeschreibung
【Problem Phenomenon】PESU precision thin-walled parts have high dimensional accuracy requirements, and shrinkage compensation needs an accurate basis
Ursachenanalyse
PESU molding shrinkage is about 0.6% with high dimensional accuracy, suitable for precision '2079851475616104452 and thin-walled parts; the low shrinkage characteristic is a material selection advantage for precision parts; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Lösung
Precisely design mold compensation according to 0.6% shrinkage; use the temperature upper limit for thin-walled parts to ensure filling; lock the process after first-article full-dimension verification; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Wichtigste Erkenntnis
PESU's 0.6% shrinkage with high precision is the preferred choice for precision thin-walled parts; 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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