Extrusion & Post
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PLA 3D Printing Nozzle Temperature
Problem Phenomenon
After the PLA printing nozzle temperature reaches 230℃, strength improves significantly, but stringing increases
Cause Analysis
Research shows that when the nozzle temperature rises to 230℃ and the platform to 80℃, molecular diffusion increases significantly and tensile strength improves by 23%; but high temperature makes the melt highly flowable, and stringing and retraction need to be matched
Solution
①For high strength requirements, nozzle 230℃ and platform 80℃; ②Optimize retraction in coordination to prevent stringing; ③Link temperature and cooling fan adjustments; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
230℃ is the sweet spot for PLA printing strength; stringing problems are hedged with retraction parameters; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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