A Pressure-Bearing Microwave Transmission Line for Rapid Energy-Efficient Manufacturing Systems of High-End Composite Parts  

作　　者：Jing Zhou Yingguang Li Zexin Zhu Xunyi Qi Xiaozhong Hao 

机构地区：[1]Jiangsu Key Laboratory of Precision and Micro‑Manufacturing Technology,College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

出　　处：《Chinese Journal of Mechanical Engineering》2024年第6期320-333,共14页中国机械工程学报(英文版)

基　　金：Supported by National Natural Science Fund of China(Grant Nos.51925505,52090052,52105364)。

摘　　要：Currently,a 2-port microwave transmission line with a glass window is usually used to transmit microwave energy to a pressure vessel while sealing the high-pressure gas.In this situation,the damage of the brittle glass window will inevitably result in disastrous accidents.In this paper,the idea of a“2+4”-port microwave transmission line is first proposed to solve this problem.A 4-port waveguide bridge structure is connected to the input port of a traditional 2-port structure,which can release the high-pressure gas safely when the glass window of the 2-port microwave transmitting structure fails.To test this idea,a“2+4”-port microwave transmission line at 2.45 GHz was designed and fabricated.The effectiveness of the whole system in microwave transmission was validated by both simulations and experiments.A high microwave transmittance of more than 97%in the simulation and 91%in the experiment was achieved.The long-time transmission of 15-kW microwave energy,5 times higher than the previous work,was realized.Moreover,the effectiveness of the transmission line in releasing high-pressure gas(0.6 MPa)was validated by a series of fluid-structure interaction simulations.This research proposes a new transmission structure for transmitting microwave into a pressurized environment safely and efficiently,which can be promoted to a series of applications including vacuum electron devices,microwave ovens,and so on.

关 键 词：Composite parts Curing/consolidation Microwave heating Transmission line Pressure vessel 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]