Reinforcing method for bonding performance of composite components

Abstract

The invention relates to the technical field of composite manufacturing and provides a reinforcing method for bonding performance of composite components. Firstly, cured components are selected as to-be-treated components, and plasma technical parameters are optimized with a furnace test piece; then plasma technology is adopted, and uniform reciprocating surface activating treatment is conducted on to-be-bonded faces; then residual impurities are cleaned away with compressed air; then structure glue films are pasted to the to-be-bonded faces, the two to-be-bonded components are combined and sealed, and secondary bonding or bonding co-curing is completed in t h after sealing is completed; and finally a binding test piece in the same sealing system or the same vacuum channel with an integralcomponent and manufactured in the same curing process is selected to be subjected to a bonding performance test, and the reinforcing effect of the bonding performance of the composite components is evaluated. Through the reinforcing method, an operation technology can be simplified, manufacturing cost is lowered, environment is protected, personal safety risk is avoided, man-made interference islowered to the lowest, and pollution or damage to the to-be-bonded faces of the components is avoided.

Description

technical field [0001] The invention relates to the technical field of composite material manufacturing, in particular to a method for strengthening the bonding performance of composite material components. Background technique [0002] The integrated structural composite material component reduces the component manufacturing and assembly links, greatly reduces the component weight and manufacturing cost on the basis of improving the structural strength of the component, and is especially suitable for aerospace, etc. high technical field. [0003] For composite materials, considering the many risk points of co-curing technology, traditionally, secondary bonding and bonding co-curing technologies are often used to form integral structural composite components. Taking the integrated reinforced panel in the aviation field as an example, in order to improve the bonding performance between the reinforced structure (longer stringer, wall or beam, etc.) Pre-joining treatment to i...

AI Technical Summary

Problems solved by technology

However, the above method will inevitably increase the manufacturing cost due to the use and removal of other materials; or due to the introduction of dust pollution and the use of chemical reagents in the grinding process, it is not conducive to environmental protection and affects the personal safety of operators

Moreover, many links will be interfered by human factors, which will easily cause pollution of the component to be bonded surface or damage to the component, which will affect the bonding performance of the composite component.

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