Molds & Tooling
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PPS product gate design
Problem Phenomenon
Gate area defects.
Cause Analysis
Gate form and position affect filling and stress; PPS low viscosity gate design must be precise.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Optimize form and position; ②control shear; ③suitable size; ④avoid stress-bearing areas.; 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
Key Takeaway
Gate design affects PPS filling quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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