气流展纤工艺中不同压差和送丝速度对碳纤维展宽的影响  

The Influence of Different Pressure Difference and Feeding Speed on the Expansion of Carbon Fiber in the Process of Air Flow Spreading

作　　者：牛雪娟[1,2] 徐妍慧 NIU Xuejuan;XU Yanhui(College of Mechanical Engineering,Tiangong University,Tianjin 300387;Key Laboratory of Modern Mechanical and Electrical Equipment Technology,Tianjin 300387)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津市现代机电装备技术重点实验室,天津300387

出　　处：《宇航材料工艺》2023年第4期97-102,共6页Aerospace Materials & Technology

基　　金：天津市自然基金面上项目(No:18JCYBJC89000)。

摘　　要：为探究气流展纤工艺中不同出口压差和送丝速度对碳纤维丝束展宽效果的影响,依据Venturi原理,搭建气流展纤试验平台,并记录大丝束碳纤维展宽过程,计算不同工艺参数下碳纤维丝束在不同阶段的展宽率和展宽均匀程度。研究结果表明:通过搭建的气流展纤试验台,能获得展宽率高于400%,展宽均匀程度在90%以上的碳纤维丝束,得到的碳纤维丝束的展宽率与出口压差呈正相关,与送丝速度呈负相关;碳纤维丝束的展宽均匀程度与出口压差呈负相关,与送丝速度呈正相关。In order to explore the influence of different outlet pressure difference and feeding speed on the expansion effect of carbon fiber bundles in the air spreading process,an air spreading platform was established according to Venturi principle.The process of carbon fiber broadening was recorded,and the ratio and uniformity of carbon fiber broadening at different stages were calculated under different technological parameters.The results show that the carbon fiber bundles with a broadening rate of more than 400%and a broadening uniformity of more than 90%can be obtained by the air flow spreading test platform.The expansion rate of the carbon fiber bundle is positively correlated with the outlet pressure difference and negatively correlated with the feeding speed.The evenness of the expansion of the carbon fiber bundle is negatively correlated with the outlet pressure difference and positively correlated with the wire feeding speed.

关 键 词：气流展纤 碳纤维束 气压差 送丝速度 

分 类 号：TB332[一般工业技术—材料科学与工程]