Molds & Tooling
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PCABS shrinkage rate
Problem Phenomenon
PC/ABS shrinkage rate 0.5-0.7% low, dimensional accuracy advantage.
Cause Analysis
PC/ABS shrinkage rate typical 0.5-0.7%; low and predictable; high-precision dimensional tolerance; complex geometry; mold design; process stability.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solution
①Design mold according to 0.5-0.7%; ②utilize dimensional accuracy; ③process stability; ④actual measurement verification; ⑤tolerance management.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PCABS low shrinkage is a dimensional accuracy advantage; mold design is precise; verification ensures accuracy.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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