Extrusion & Post
8 views
CMC Screw Slippage
Problem Phenomenon
During CMC extrusion, the screw slips, feeding does not advance, and output drops sharply
Cause Analysis
CMC particles melt too early in the feeding section, forming a lubricating film that causes screw slippage; feeding section temperature is too high
Solution
1)Lower feeding section temperature by 10-15°C to delay melting; 2)Deepen feeding section flights to increase material grip; 3)Dry particle surface to reduce lubrication
Key Takeaway
Screw slippage is caused by premature melting; cooling the feeding section is the key
Was this helpful?
0 people found this helpful
Thank you for your feedback!