Molds & Tooling
4 görüntüleme
PCABS shrinkage rate and mold
Sorun Belirtisi
【Problem Phenomenon】PC/ABS part dimensional deviation, shrinkage compensation inaccurate
Neden Analizi
PC/ABS shrinkage rate 0.5-0.7% and uniform in all directions (amorphous); slightly lower than pure PC; mold compensation according to actual measured shrinkage rate; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Çözüm
Compensate according to 0.5-0.7% and correct with actual measurement; glass fiber grades have lower shrinkage, follow the data sheet; key dimensions SPC; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Temel Çıkarım
PC/ABS shrinkage 0.5-0.7% uniform, correct the mold by actual measurement; 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 later
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