先进拉挤C型梁预成型方案研究

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (10): 60-66.

先进拉挤C型梁预成型方案研究

高少楠¹, 齐俊伟^1*, 王跃全¹, 陈以传²

1.南京航空航天大学材料科学与技术学院,南京210001;
2.上海航天设备制造总厂有限公司,上海200000

收稿日期:2019-12-13 出版日期:2020-10-28 发布日期:2020-10-28
通讯作者: 齐俊伟(1964-),男,硕士,高级工程师,主要从事先进复合材料成型技术方面的研究,qijunwei@nuaa.deu.cn。
作者简介:高少楠(1994-),男,硕士,主要从事复合材料成型工艺及设备方面的研究。
基金资助:
“高档数控机床与基础制造装备”科技重大专项(2017ZX04009001)

STUDY ON C-BEAM PREFORM BASED ON ADVANCED PULTRUSION

GAO Shao-nan¹, QI Jun-wei^1*,WANG Yue-quan¹, CHEN Yi-chuan²

1. Nanjing University of Aeronautics and Astronautics, Nanjing 210001, China;
2. Shanghai Aerospcae Equipments Manufacturer Co., Ltd., Shanghai 200000, China

Received:2019-12-13 Online:2020-10-28 Published:2020-10-28

摘要/Abstract

摘要： 超长桁梁类复合材料构件可用以预浸料为原材料的先进拉挤成型工艺(Advanced Pultrusion,ADP)实现低成本、高效率生产。先进拉挤预成型阶段是将带状坯料连续折弯变形为指定截面的过程。本文基于先进拉挤生产C型截面长桁,建立预变形分析模型,确定模具最优长度为1100 mm,设计变形约束截面曲线有效地约束了纤维变形过程,提出以张力控制为基础的预成型方案对变形模型进行修正,计算结果显示放料端高度为50.9375 mm时纤维变形路径差最小,使其由2.42‰下降至1.22‰,并以此设计预成型模具及张力控制装置;研究了BA3202预浸料树脂流变特性及凝胶特性,确定了预成型100 ℃、热压180 ℃、保温60 min的拉挤成型工艺参数;拉挤试验过程中预浸料表面无褶皱堆积,拉挤制件折弯效果良好,角区表面质量高,金相观察制件内部铺层纤维无屈曲,表明工艺参数设置合理,预成型方案可行。

关键词: 先进拉挤工艺, C型梁, 预变形成型, BA3202预浸料, 固化工艺, 复合材料

Abstract: The advanced pultrusion (Advanced Pultrusion, ADP)using prepreg as the raw material can realize the efficient production of truss composite members. In the advanced pultrusion process, the preforming stage is to bend the straight prepreg strip to form a specified section. In this paper, the mold is designed to complete the flat-loaded prepreg tape to form a C-shaped cross section. By establishing a deformation model, the optimal length of the mold is determined to be 1100 mm. A constraint curve is designed to effectively constrain the fiber deformation process, and the tension is proposed. The control scheme revised the model and calculated that the fiber path difference was the smallest when the height of the discharge end was 50.9375 mm, which reduced it from 2.42‰ to 1.22‰. Based on this, the C-shaped preform mold design was completed. The BA3202 curing process was studied, and the advanced pultrusion process parameters were determined to be preforming 100 ℃, hot pressing 180 ℃, and holding for 60 minutes. Based on the above, a pultrusion experiment was performed. During the experiment, there was no wrinkle accumulation on the surface of the prepreg. The bending effect of the part is good, the surface quality of the corner area is high, and the internal fiber of the part is not buckled by metallographic observation, which indicates that the process parameters are reasonable and the preforming scheme is feasible.

Key words: advanced pultrusion, C-shaped beam, pre-deformation, BA3202 prepreg, curing process, composites

中图分类号:

TB332

高少楠, 齐俊伟, 王跃全, 陈以传. 先进拉挤C型梁预成型方案研究[J]. 复合材料科学与工程, 2020, 0(10): 60-66.

GAO Shao-nan, QI Jun-wei,WANG Yue-quan, CHEN Yi-chuan. STUDY ON C-BEAM PREFORM BASED ON ADVANCED PULTRUSION[J]. Composites Science and Engineering, 2020, 0(10): 60-66.

参考文献

[1] 齐俊伟, 李勇, 肖军. 先进拉挤成形技术及其在大飞机复合材料结构中的应用[J]. 航空制造技术, 2011(15): 50-52.
[2] 齐俊伟, 宋伟, 肖军, 等. C-f/E 预浸料先进拉挤固化工艺[J]. 宇航材料工艺, 2011, 41(5): 44-49.
[3] TORU K, KAZUMI A. Continuous forming device of H-shaped FRP member: US, 2001/0007684[P]. 2001-07-12.
[4] TORU K, MAKOTO O, SHUNTARO K. Method and apparatus for continuous molding of fiber reinforced plastic member with curvature: US, 2005/0029707[P]. 2005-02-10.
[5] KASAI T, OKAMOTO M, KURIYAMA S. Method and apparatus for continuous molding of fiber reinforced plastic member with curvature: U.S. Patent 7,186,361[P]. 2007-3-6.
[6] 齐俊伟, 肖健, 邓磊明, 等. 基于先进拉挤工艺的 C 型梁预成形变形分析[J]. 航空制造技术, 2012, 415(19): 88-91.
[7] 陈以传, 齐俊伟, 肖军, 等. 帽形长桁先进拉挤预成型技术研究[J]. 玻璃钢/复合材料, 2018(6): 73-77.
[8] 薛向晨, 王犇, 胡江波, 等. 大型机身复合材料加筋壁板制造技术及应用[J]. 航空制造技术, 2019, 62(16): 88-93.
[9] MARSH G. Composites lift off in primary aerostructures[J]. Reinforced plastics, 2004, 48(4): 22-27.
[10] 刘善国. 国外飞机先进复合材料技术[J]. 航空制造技术, 2014, 463(19): 26-31.
[11] 孙占红. CCF300/BA9916-Ⅱ环氧预浸料及其复合材料性能研究[C]//中国航空学会. 第17届全国复合材料学术会议(复合材料及其原材料分论坛)论文集. 北京中航时代文化传播有限公司, 2012: 8-10.
[12] 赵月青. 碳纤维/环氧预浸料摩擦性能测试及其变化规律研究[C]//中国复合材料学会、杭州市人民政府.第三届中国国际复合材料科技大会摘要集-分会场46~50. 中国复合材料学会, 2017: 25.
[13] 陶家祥, 李炜. 基于DSC的预浸料固化工艺评价和优化[J]. 高科技纤维与应用, 2016, 41(1): 66-71.
[14] 杨强强, 齐俊伟, 肖军. 先进拉挤成型制件缺陷成因及工艺改进[J]. 纤维复合材料, 2016, 33(4): 3-7.
[15] 王宇, 齐俊伟, 王跃全, 等. 多区间热压对拉挤制件成型质量的影响[J]. 玻璃钢/复合材料, 2019(10): 10-18.
[16] 宋伟, 齐俊伟, 肖军, 等. 碳纤维/环氧预浸料的热固化工艺研究[J]. 玻璃钢/复合材料, 2011(1): 48-51.
[17] RANGANAYAKULU A N S, SINGH D D, BABU B S, et al. Experimental development of FRP pultrusion moulds[J]. Materials Today: Proceedings, 2019, 19: 354-360.
[18] HALLANDER P, SJÖLANDER J, PETERSSON M, et al. Fast forming of multistacked UD prepreg using a high-pressure process[J]. Polymer Composites, 2019, 40(9): 3550-3561.
[19] NEWCOMB B A. Time-temperature-transformation (TTT) diagram of a carbon fiber epoxy prepreg[J]. Polymer Testing, 2019, 77: 105859.
[20] 胡红梅, 钱春辉, 陈云传. DSC 测试环氧胶玻璃化转变温度的影响因素[J]. 上海化工, 2013, 38(6): 18-19.