Extrusion & Post
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PVB Calender Roll Process
Problem Phenomenon
PVB calender roll temperature and pressure improper, surface quality and thickness precision affected.
Cause Analysis
PVB calender rolls or cooling rolls control thickness and surface finish; temperature and pressure matching; roll surface condition; speed synchronization.; When troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
①Calender roll temperature and pressure optimization; ②Roll surface condition maintenance; ③Speed synchronization control; ④Surface quality detection.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
PVB calender roll process is the key link for surface and thickness; multi-parameter matching; maintenance ensures precision.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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