Extrusion & Post
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PAN fiber uneven fineness
Fenómeno do problema
The fineness of the spun PAN filaments fluctuates greatly along the length direction and between tows
Análise das causas
Metering pump output pressure fluctuates; spinneret holes have differences; coagulation and drawing conditions uneven
Solução
Use a high-precision metering pump; regularly check the flow of each spinneret hole; stabilize the coagulation and drawing process
Conclusão principal
Fineness uniformity is a basic requirement for high-performance carbon fiber
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