Cooling system during high-pressure microwave curing based on electromagnetic shielding
Cooling system during high-pressure microwave curing based on electromagnetic shielding
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DOI：
10.1007/s00170-021-06655-w
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发表时间：
2021-02
期刊：
影响因子：
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通讯作者：
Kai Ju;Yong Lu;Yongxi He;Zexin Zhu;Xiaozhong Hao
中科院分区：
文献类型：
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作者：
Kai Ju;Yong Lu;Yongxi He;Zexin Zhu;Xiaozhong Hao
纤维增强聚合物复合材料的高压微波固化由于其选择性体积加热的特点，具有响应快、效率高、能耗低等突出优点。然而，在高压电磁环境中，缓慢且不可控的冷却过程将延长固化周期，限制微波法优化固化过程的实现。目前还没有合适的解决方案。本文应用多孔阵列电磁屏蔽理论，在高压电磁环境下设计了一种循环冷却系统，既能保证微波屏蔽，又能保证气体循环。结果表明，循环冷却系统能满足微波屏蔽99%以上的要求，最大冷却速率为6°C/min，冷却速率是传统高压微波槽的3.6倍。我们预计，解决冷却问题是朝着复合材料微波固化的工业应用迈出的一步，它也将在电子设备的散热和精密仪器的保护中得到应用。
High-pressure microwave curing of fiber-reinforced polymer composites exhibits prominent advantages of fast response, high efficiency, and low energy consumption due to the characteristic of selective volume heating. However, the slow and uncontrollable cooling process in the high-pressure electromagnetic environment will prolong the curing cycle and limit the realization of optimized curing processes in microwave method. And there is currently no suitable solution. Here, a circulation cooling system is invented in the high-pressure electromagnetic environment by the application of porous array electromagnetic shielding theory, which can ensure the microwave shielding and the gas circulation. Results show that the circulation cooling system can satisfy the requirements of microwave shielding more than 99%, the maximal cooling rate of 6°C/min and the cooling rate of this cooling system is 3.6 times higher than that of the traditional high-pressure microwave tank. We anticipate that solving the cooling problem is a step towards the industrial application of composite microwave curing and it will also have applications in heat dissipation of electronic equipment and protection of precision apparatus.