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- Common problems in blown film production include123:
- Bubble breaks
- Strain hardening
- Unstable frost line
- Bubble fluttering
- Insufficient cooling
- High frost line
- High blow-up ratio
- Tight nips
- Die line or bad web lines from die
- Scratches from collapsing frame, nips, or idlers
- Resin degradation or dirt lodged under edge of die lips
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The main issues include bubble breaks, strain hardening, unstable frost line, and bubble fluttering.
www.ptonline.com/articles/solving-five-common-pr…Troubleshooting:
- Reduce melt temperature, or if un-melts, increase extruder barrel temperatures
- Check thermocouple installation and ensure accurate heater control
davis-standard.com/custom_blog/troubleshooting-c…Insufficient cooling, frost line too high, blow up ratio too high Nips set too tight, especially if old & hardened rubber nips are used Die line or bad web lines from die Scratches from collapsing frame, nips or idlers Degraded particles of resin or dirt lodged under edge of die lips which make film split at weldwww.atozplastics.com/upload/literature/tr_blw_film… - People also ask
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- Page Count: 33
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