Injection Molding
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ABS injection pressure 70-140
Problem Phenomenon
ABS injection pressure 70-140MPa, thin-wall complex structure requirements, holding pressure 50-70%.
Cause Analysis
ABS injection pressure 70-140MPa; increased for thin walls and complex geometry; holding pressure 50-70% of injection pressure; compensating 0.4-0.7% shrinkage; dimensional accuracy; stress management.
Solution
①Injection pressure 70-140MPa; ②increase for thin-wall complex parts; ③holding pressure 50-70%; ④dimensional accuracy; ⑤stress balance.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The medium-high range of ABS injection pressure and the holding pressure ratio are standards; compensating shrinkage ensures accuracy; balance prevents stress.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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