Material Drying
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LDPE Drying Equipment
Problem Phenomenon
Does LDPE need a dehumidifying dryer?
Cause Analysis
LDPE has low water absorption; an ordinary oven suffices; During on-site troubleshooting, 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 literature and should be confirmed first during troubleshooting.
Solution
An ordinary hot-air oven at 80℃ meets regrind needs; new material needs no drying; 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
LDPE drying equipment is kept simple; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting reference for similar future problems.
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