Processing Machinery
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PSU Mineral and Glass Fiber Filled Grades
Problem Phenomenon
【Problem Phenomenon】PSU strength and rigidity are insufficient or shrinkage needs further reduction, and filled modification selection is unclear
Cause Analysis
PSU has mineral-filled and glass fiber reinforced grades that can improve strength, rigidity, and thermal stability; filling changes flow and shrinkage characteristics, and the process needs corresponding adjustment; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
Choose mineral or glass fiber grades according to strength and rigidity requirements; filled grades increase melt temperature and mold temperature; adjust wear protection and shrinkage compensation according to filling rate; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
Filled grades reinforce strength and reduce shrinkage, and the process is adjusted in linkage with the filling rate; after confirming effectiveness, fix 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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