Composite energy field heating device

Abstract

The invention provides a composite energy field heating device. The composite energy field heating device comprises a microwave heating device and a hot-pressing tank, wherein the microwave heating device comprises a microwave generator, a microwave cavity and a microwave local shielding part; the microwave generator is used for sending microwaves into the microwave cavity; a wave absorbing material is arranged in the microwave cavity; the microwave local shielding part is positioned in the microwave cavity, and is used for covering the outer surface of the wave absorbing material; the microwave local shielding part is composed of a shielding microwave region and a transmission microwave region; the transmission microwave region comprises one or more seams, so that microwaves in the microwave cavity can enter the wave absorbing material through the seams for being absorbed; the microwave cavity is integrally arranged in the hot-pressing tank; a ventilating window or a ventilating wall which consists of one or more metal honeycomb plates is arranged on the microwave cavity; and the ventilating window or the ventilating wall can be used for enabling smooth air flow inside and outside the microwave cavity in the hot-pressing tank while shielding the microwaves. The composite energy field heating device can truly realize consistent temperature on all parts in the wave absorbing material, so that high-quality cured products are provided for the aviation and aerospace fields.

Description

technical field [0001] The invention relates to the field of heating, in particular to a composite energy field heating device and method. Background technique [0002] The curing process of composite materials, such as those containing carbon fiber fabrics and resins, is a complex process of rapid changes in thermal, chemical and mechanical properties. Especially for large-sized parts, due to the complexity of its structure, such as variable thickness, multi-interface, variable structure (C-type, I-type, J-type, T-type), and the inhomogeneity of the manufacturing process environment, the part is curing It is difficult to maintain consistent temperature and pressure distribution at different parts during the process, which leads to uneven resin flow and asynchronous curing effect, which is prone to defects such as delamination, pores and fiber macroscopic slippage, and reduces the performance of the part; at the same time, due to The anisotropy of the mechanical properties ...

AI Technical Summary

Problems solved by technology

[0007] However, when these above-mentioned devices or methods are used to compound heat and cure the composite material, that is, to use the microwave method and the traditional method (autoclave) to heat and cure the composite material at the same time, the heat and cure situation can not be well controlled, making the compound The actual result of composite heat curing of the material is far from the ideal value and design value

How to make the internal temperature field of large-scale thick parts and large-scale variable-thickness parts uniform? At present, there is no method that can quickly realize the temperature rise of thick parts and ensure that the temperature difference of each point in the part is very small.

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