Processing Machinery
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HDPE toys
Problem Phenomenon
HDPE toys shatter in low-temperature drops
Cause Analysis
HDPE toughness decreases at low winter temperatures, and thin-walled toys shatter when dropped; 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 during troubleshooting
Solution
Toy wall thickness design; select a high-impact grade; test according to toy safety standards; 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
Toys are tested for low-temperature drop according to safety standards; 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 future problems
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