复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (2): 112-118.DOI: 10.19936/j.cnki.2096-8000.20220228.018

• 应用研究 • 上一篇    下一篇

耐温350 ℃以上复合材料外涵机匣模拟件的研制

梁恒亮1, 陈玉龙2, 周洪飞3   

  1. 1.航空工业制造院复材中心,北京101300;
    2.中国航发涡轮研究院,成都610500;
    3.中航复合材料有限责任公司,北京101300
  • 收稿日期:2021-01-20 出版日期:2022-02-28 发布日期:2022-03-14
  • 作者简介:梁恒亮(1979-),男,学士,主要从事聚酰亚胺复合材料制造技术方面的研究。

Study on the composite simulator of the aero-engine bypass duct with resistance above 350 ℃

LIANG Heng-liang1, CHEN Yu-long2, ZHOU Hong-fei3   

  1. 1. AVIC Manufacturing Technology Institute, Beijing 101300, China;
    2. AECC Sichuan Gas Turbine Research Establishment, Chengdou 610500, China;
    3. AVIC Composite corporation ltd., Beijing 101300, China
  • Received:2021-01-20 Online:2022-02-28 Published:2022-03-14

摘要: 采用热压罐工艺制备的复材外涵机匣模拟件为大尺寸带翻边筒体结构,由于结构比较复杂,且选用的聚酰亚胺BMP370树脂基复合材料受成型所需温度较高、压力较大和固化时间较长等不利因素影响,结构质量难以保证。本文从封装技术、模具制造技术和工艺等方面进行优化,较好地控制了外涵机匣模拟件的成型质量。通过无损检测、随炉件力学性能测试、Tg测试和热强度测试,结果表明:机匣无损检测合格,孔隙率控制在2%以下,高温力学性能达到室温的50%以上,Tg测试结果为430.2 ℃,满足设计要求。

关键词: 复材外涵机匣模拟件, 耐高温, 翻边筒体结构, 热压罐固化

Abstract: The composite aero-engine bypass duct manufactured by autoclave molding technology is a large-size tubular structure with flanged edge. Due to its complex structure and the adverse factors such as high temperature, high pressure and long curing time, it is difficult to guarantee the structure quality for the selected polyimide BMP370 resin matrix composite material. In this study, the molding qualities of the simulation parts of the case were better controlled by packaging technology, molding design and manufacturing technology and process techniques. The results of non-destructive testing, mechanical properties of furnace pieces, Tg test and 370 ℃ static strength test show that the case is qualified in non-destructive testing with porosity under 2% and mechanical properties at high temperature above 50% of that at room temperature. The Tg of 430.2 ℃ and 370 ℃ damage intensity also meets the design requirements.

Key words: composite bypass duct casing model, high temperature resistance, flanging barrel structure, autoclave curing process

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