Molds & Tooling
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PC/ABS short shot
Problem Phenomenon
Incomplete filling.
Cause Analysis
Insufficient pressure and speed or low temperature; runner and gate too small.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
①Increase pressure and speed; ②appropriately raise temperature; ③enlarge runner and gate; ④improve venting.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Short shot is troubleshooted from three paths: pressure, temperature, and runner.; after confirming effectiveness, fix 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 later
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