Extrusion & Post
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PC High-Gloss Paint-Free
Problem Phenomenon
[Problem Phenomenon] High-gloss appearance is required but painting cost is high
Cause Analysis
PC can be high-gloss paint-free: mold mirror surface plus high mold temperature achieves a paint-like appearance; saves processes and is environmentally friendly; scratch resistance requires coating; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone
Solution
Select PC with mirror molds for high-gloss parts; high mold temperature; add hard coating for scratch resistance; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate effective measures
Key Takeaway
PC high-gloss paint-free saves processes; mold mirror surface is the key; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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