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Troubleshooting Glossy Finger-Shaped Defects by Chris Brenner is a document available to read on EtoBox.
What is Troubleshooting Glossy Finger-Shaped Defects about?
The document provides troubleshooting information for localized, glossy, finger-shaped depressions that can occur on injection molded plastic parts. The depressions are often near the sprue, cores, or hot runner units. Possible causes include premature demolding, holding pressure being too low or for too short a time, switching from injection to holding pressure too soon, or having uneven mould temperatures that are too high in places. Recommended remedial actions include extending the cycle time, increasin
- Author
- Chris Brenner
- Language
- EN