Injection Molding
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MS High-Pressure Molding
Problem Phenomenon
MS flowability is slightly poor, high-pressure molding 80-100MPa is preferred, pressure management.
Cause Analysis
MS flowability is slightly poor, high-pressure molding 80-100MPa is preferred; appropriately increase injection time; sufficient holding pressure (80% of injection pressure) for shrinkage compensation; injection speed cannot be too fast to avoid obvious bubbles; too slow speed makes weld lines thicker.
Solution
①Injection pressure 80-100MPa; ②appropriate injection time; ③holding pressure 80% for shrinkage compensation; ④speed control to prevent bubbles; ⑤balance weld lines.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
MS high-pressure molding is flowability compensation; speed and pressure balance; management ensures quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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