Warpage–Technical Problem of Fiberglass Compression Molding

Condition Description Reasons Solution
1 The Fiberglass Compression Molding part is slightly warped. Warpage due to shrinkage during hardening and cooling. To cool fiberglass molding parts in fixture.To use low or no shrinkage resin.
2 The temperature of half mold is higher than other half. Reduce mold temperature difference.
3 The Fiberglass Compression Molding part is seriously warped. Particularly long process cause fiberglass orientation and then result in warpage. To increase the feeding area,shorten the process and use low shrinkage or shrink free resin.
Project:
Weld Line Phenomenon and Solution in plastic Injection Molding

The weld line is due to the fact that the forepart of the melt resin(raw material for plastic inj……

Usual mold parts and their function

Item Description Function 1 Top clamp plate To connect the compression mold with the hydraul……

Many small surface holes–Technical Problem of Fiberglass Compression Molding

Condition Description Reasons Solution 1 if there are too many small holes in the surface it ……

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