Material Drying
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TPE Hardness Batches
Problem Phenomenon
Hardness differences between batches of the same TPE grade
Cause Analysis
Influence of raw material batches and drying state; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry information and should be confirmed first during troubleshooting
Solution
Incoming material hardness inspection; unified drying; process fine-tuning; 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
Hardness consistency relies on incoming material and drying control; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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