Extrusion & Post
12 görüntüleme
PCL low melt strength stringing
Sorun Belirtisi
PCL has low melt strength during extrusion or printing, severe stringing, and poor surface finish.
Neden Analizi
PCL has low melt strength; stringing is prone to occur during high-speed extrusion; the melt stays in the nozzle too long and thermally degrades; bubbles and impurities are generated; printing accuracy decreases.
Çözüm
①Extrusion or printing speed control; ②Nozzle temperature management; ③Shortening of melt residence time; ④Retraction or wiping mechanism; ⑤'2079851475616104451.；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Temel Çıkarım
PCL stringing is a direct manifestation of low melt strength; speed and temperature management; mechanism assistance improves the surface.；After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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