Injection Molding
8 مشاهدة
PARA Metal Insert
ظاهرة المشكلة
PARA metal insert molding interface bonding and stress problems; thermal expansion difference.
تحليل الأسباب
Thermal expansion coefficient difference between PARA and metal; insufficient insert preheating; molding stress concentration; thermal cycling failure.; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
الحل
①Insert preheating; ②Interface mechanical interlocking; ③Low-stress molding; ④Thermal cycling verification.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
الخلاصة الأساسية
Thermal expansion management of PARA insert parts is the core; preheating and interlocking are standard means; verification covers temperature cycling.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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