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Troubleshooting your rotomolding operation

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Troubleshooting your rotomolding operation ( troubleshooting-your-rotomolding-operation )

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Troubleshooting Guide – Linear Polyethylene Problem Possible Cause Suggested Remedy 13. Highly underfused parts with many small bubbles in wall or rough, powdery inside surface. Oven temperature not high enough to drive air bubbles out of part walls • Increase oven temperature or total heating cycle. Heat transfer rate not adequate to melt all the resin • Increase heat-transfer rate by using thinner mold walls, or make mold from material with greater heat- transfer coefficient, e.g. steel- aluminum-copper. 29

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