Molding Process
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Glass Fibre large compression set
Problem Phenomenon
Glass Fibre product compression set >30%, below the 15% requirement
Cause Analysis
Glass Fibre elastic recovery insufficient; crosslinking degree too low, plastic deformation unrecoverable; density too low, cell walls thin, recovery poor
Solution
1) Raise crosslinking degree to 60-70% to reduce plastic deformation; 2) select high elastic recovery Glass Fibre grade; 3) add reinforcing filler
Key Takeaway
Large compression set is caused by insufficient crosslinking; raising crosslinking degree is key
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