Molds & Tooling
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PBT product poor surface gloss
Problem Phenomenon
Surface haze and insufficient gloss.
Cause Analysis
Low mold temperature and poor replication; poor mold surface condition.; when troubleshooting on site, 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 data and should be confirmed first when troubleshooting
Solution
①Increase mold temperature; ②polish the cavity; ③increase injection speed; ④clean the mold surface.; 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
Gloss relies on mold temperature and mold surface management.; after confirming effectiveness, solidify 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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