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HDPE '2079851475616104457 excessive flash

Fenómeno do problema

The flash at the bottle mouth and bottom mold line is thick and difficult to trim.

Análise das causas

Excessive extrusion pressure/back pressure, improper pre-blowing pressure, poor mold parting line fit.

Solução

①Reduce extrusion pressure/back pressure; ②adjust the pre-blowing pressure; ③overhaul the mold parting line fit; ④check the clamping force.

Conclusão principal

For large flash, reduce pressure first, then check mold fit.

HDPE; '2079851475616104457; flash; mold line; pre-blowing

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