Processing Machinery
5 مشاهدة
PP EPP Foaming Defects
ظاهرة المشكلة
【Problem Phenomenon】EPP foamed parts have uneven density and insufficient strength
تحليل الأسباب
Improper steam temperature and pressure during EPP bead foaming and molding; poor bead fusion leads to poor strength; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
الحل
Steam temperature and pressure according to regulations; mold venting; uniform bead pre-pressing; after adjustment, take continuous samples 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
الخلاصة الأساسية
EPP foaming depends on the steam process, bead fusion determines strength; 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 in the future
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