黄灿,杨卫民,程礼盛,高晓东,谭晶

• 1:北京化工大学机电工程学院

摘要(Abstract)：

基于激光石墨化技术对PAN基碳纤维的作用特点,采用有限元法,构建高斯移动热源模型,求解激光辐照移动碳纤维丝束在石墨化反应体系中的温度分布,以分析激光对碳纤维石墨化作用的径向非均匀性规律。结果表明,碳纤维丝束横截面内的温度分布主要取决于激光功率、光斑直径和走丝速度,增大激光功率、减小光斑直径和走丝速度,都能提高碳纤维温度。采用单侧激光加热时,丝束截面内存在较大的温差,而采用两个互为180°激光器同时照射时,温度分布差异减小,碳纤维石墨化程度在截面内分布更为均匀。

关键词(KeyWords)： PAN基碳纤维;高斯移动热源;有限元分析;温度分布;石墨化均匀性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学青年基金(51602015)

作者(Author): 黄灿,杨卫民,程礼盛,高晓东,谭晶

DOI: 10.13289/j.issn.1009-6264.2019-0207

参考文献(References)：

• [1]张为芹，田艳红，杨延风，等．高温热处理对炭纤维性能的影响[J]．新型炭材料，2001(3):52-54+57.ZHANG Wei-qin,TIAN Yan-hong,YANG Yan-feng,et al. Effect of high temperature heat treatment on properties of carbon fiber[J].New Carbon Materials,2001,16(3):52-54+57.
• [2]王浩静，王红飞，李东风，等．石墨化温度对炭纤维微观结构及其力学性能的影响[J]．新型炭材料，2005(2):157-163.WANG Hao-jing,WANG Hong-fei,LI Dong-feng,et al. Effect of graphitization temperature on the microstructure and mechanical properties of carbon fibers[J].New Carbon Materials,2005,20(2):157-163.
• [3] Zhou G,Liu Y,He L,et al.Microstructure difference between core and skin of T700 carbon fibers in heat-treated carbon/carbon composites[J].Carbon,2011,49(9):2883-2892.
• [4] Wang X Z,Jie L,Gang W.Evolution of structure and properties of PAN precursors during their conversion to carbon fibers[J].Carbon,2003,41(14):2805-2812.
• [5] Loidl D,Paris O,Rennhofer H,et al.Skin-core structure and bimodal Weibull distribution of the strength of carbon fibers[J].Carbon,2007,45(14):2801-2805.
• [6] Qian X,Zhi J,Chen L,et al.Evolution of microstructure and electrical property in the conversion of high strength carbon fiber to high modulus and ultrahigh modulus carbon fiber[J].Composites Part A:Applied Science and Manufacturing,2018,112:111-118.
• [7] Williams W S,Steffens D A,Bacon R.Bending behavior and tensile strength of carbon fibers[J].Journal of Applied Physics,1970,41(12):4893-4901.
• [8]高爱君．PAN基碳纤维成分、结构及性能的高温演变机理[D]．北京:北京化工大学，2012.GAO Ai-jun.Evolution mechanism of compositon,structure and properties of PAN-based carbon fibers at high temperature[D].Beijing:Beijing University of Chemical Technology,2012.
• [9]李东风，王浩静，朱星明，等．碳纤维石墨化设备的研究与进展[J]．化工进展，2004(2):168-172.LI Dong-feng,WANG Hao-jing,ZHU Xing-ming,et al. Study and development of carbon fiber graphitization equipment[J].Chemical Industry Progress,2004(2):168-172.
• [10]武练梅，李冠礁，付毅飞．M40J高性能碳纤维实现中国造[N]．科技日报，2017-07-19.WU Lian-mei,LI Guan-jiao,FU Yi-fei. M40J high performance carbon fiber made in China[N]. Science and Technology Daily,2017-07-19.
• [11]钱伯章．国产M55J级高强高模碳纤维制备取得突破[J]．合成纤维，2018,47(6):55.QIAN Bo-zhang.Breakthrough in preparation of domestic M55J grade high strength and high modulus carbon fiber[J]. Synthetic Fiber,2018,47(6):55.
• [12]董志伟，郑立威，姜涛，等．利用飞秒激光加工碳纤维[J]．强激光与粒子束，2014,26(11):24-27.DONG Zhi-wei,ZHENG Li-wei,JIANG Tao,et al. Processing carbon fiber by femtosecond laser[J]. Intense Laser and Particle Beam,2014,26(11):24-27.
• [13] Sha Y,Yang W,Li S,et al.Laser induced graphitization of PAN-based carbon fibers[J].RSC Advances,2018,8(21):11543-11550.
• [14]谭晶，沙扬，黎三洋，等．激光隧道炉炭纤维超高温石墨化处理方法[J]．炭素技术，2016,35(6):47-50.TAN Jing,SHA Yang,LI San-yang,et al.Ultra-high temperature graphitization of carbon fiber in laser tunnel furnace[J].Carbon Technology,2016,35(6):47-50.
• [15] Lott P,Stollenwerk J,Wissenbach K.Laser-based production of carbon fibers[J].Journal of Laser Applications,2015,27(S2):S29106.
• [16]黎三洋，张有忱，沙扬，等．激光石墨化过程中激光功率和牵伸力对聚丙烯腈基碳纤维化学结构和微观结构的影响[J]．化工进展，2018,37(2):658-663.LI San-yang,ZHANG You-chen,SHA Yang,et al.Effect of laser power and drawing force on chemical structure and microstructure of polyacrylonitrile-based carbon fiber during laser graphitization[J].Chemical Industry and Engineering Progress,2018,37(2):658-663.
• [17]王照亮，唐大伟，郑兴华，等．3ω法测量单根碳纤维导热系数和热容[J]．工程热物理学报，2007(3):490-492.WANG Zhao-liang,TANG Da-wei,ZHENG Xing-hua,et al.3ωmeasurement of thermal conductivity and heat capacity of a single carbon fiber by using the method[J].Engineering Thermal Physics Journal,2007(3):490-492.
• [18]田艳红，乔伟静，张学军，等．聚丙烯腈基高模量碳纤维导热性能的影响因素[J]．材料导报，2018,32(10):1668-1671.TIAN Yan-hong,QIAO Wei-jing,ZHANG Xue-jun,et al.Influence factors on thermal conductivity of polyacrylonitrile-based high modulus carbon fiber[J].Materials Review,2018,32(10):1668-1671.
• [19]曹伟伟，朱波，王成国．碳纤维微结构与热辐射性能的相关性研究[J]．材料工程，2009(1):55-58.CAO Wei-wei,ZHU Bo,WANG Cheng-guo. Study on the correlation between microstructure and thermal radiation properties of carbon fiber[J].Journal of Materials Engineering,2009(1):55-58.
• [20]段锦，吴君，端木繁一，等．激光能量密度分布的测量方法[J]．吉林大学学报(理学版)，2009,47(2):311-316.DUAN Jin,WU Jun,DUAN Mu-fanyi,et al. Measurement method of laser energy density distribution[J]. Jilin University Journal(Science Edition),2009,47(2):311-316.

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