Material Analysis
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Glass Fibre shrinkage rate unstable
Problem Phenomenon
Glass Fibre product shrinkage rate fluctuates ±0.8%, exceeding ±0.2% requirement
Cause Analysis
Glass Fibre different batches molecular weight difference causes shrinkage rate change; processing temperature fluctuation affects crystallinity thus affecting shrinkage rate
Solution
1) Strictly control raw material batch consistency; 2) processing temperature stable ±2°C to ensure consistent crystallinity; 3) mold shrinkage compensation reserves adjustment space
Key Takeaway
Unstable shrinkage rate is caused by batch difference and temperature fluctuation; raw material and temperature control are key
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