Injection Molding
5 مشاهدة
TPE Overmolding Two-Shot '2079851475616104452
ظاهرة المشكلة
Poor bonding in two-shot injection overmolding
تحليل الأسباب
First-shot parts are contaminated during storage or have low temperature; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry information and should be confirmed first during troubleshooting
الحل
Store first-shot parts clean; second-shot injection after preheating; turn over as soon as possible; after adjustment, continuously sample 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
الخلاصة الأساسية
Two-shot injection requires first-shot part condition management; after confirming effectiveness, solidify 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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