Material Drying
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LCP Product Bubbles
Problem Phenomenon
Bubbles inside the product.
Cause Analysis
Moisture on the pellet surface vaporizes or degradation generates gas; at high temperatures, moisture is the main source.; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience
Solution
①Fully dry to below 0.01%; ②control melt temperature upper limit; ③shorten residence time; ④improve venting.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
LCP bubbles are mainly of the moisture type; strict drying solves the vast majority.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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