Molds & Tooling
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PBT gate design
Problem Phenomenon
Gate area defects.
Cause Analysis
Improper gate form and position; shear and stress concentration.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first when troubleshooting
Solution
①Optimize form and position; ②control shear; ③avoid stressed areas; ④appropriate gate size.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Gate design affects fiber orientation and stress.; 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 similar problems in the future
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