Material Drying
3 조회수
PP Silver Streak Drying Misjudgment
문제 현상
PP silver streaks still appear after drying verification, equipment or process factors troubleshooting.
원인 분석
PP silver streaks still appear after sufficient drying; nozzle heater leakage; excessive back pressure; screw wear; excessive residence time; equipment inspection omissions.; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
해결 방법
①Drying verification confirmation; ②nozzle heater inspection; ③back pressure reduction; ④screw wear inspection; ⑤residence time management.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
핵심 요약
Post-drying equipment troubleshooting of PP silver streaks is deep diagnosis; nozzle and back pressure are common omissions; systematic adjustment.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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