Dyeing stripping method and dyeing stripping device for layer detection of hole forming of composite laminate plates

Abstract

The invention discloses a dyeing stripping method and a dyeing stripping device for layer detection of hole forming of composite laminate plates. Barium sulfate is ground into nanoscale powder by a nanoscale grinding platform; barium sulfate powder is uniformly dispersed into diethyl ether by an ultrasonic dispersion machine to form penetrating fluid; the penetrating fluid is coated on hole walls by a penetrating fluid coating platform; a numerical-control constant temperature furnace damages a matrix; an electric coupling image sensor converts layered image information into digital information and transmits data; and an image processer processes layered digital information, and a hole wall layered three-dimensional model is generated. By the dyeing stripping method and the dyeing stripping device, requirements on equipment are low, the equipment used by a system is common instruments or devices, detection cost is low, layered damage conditions of layers of the composite laminate plates can be detected, and the layered three-dimensional model can be set up.

Description

technical field [0001] The invention relates to the field of hole-making defect detection of composite material laminated boards. Background technique [0002] In the experimental research and process optimization of composite material pore-making process, hole wall delamination damage is one of the main indicators to measure the quality of pore-making. The delamination between each layer can be detected accurately, efficiently and at low cost. It is of great significance to study the cost and verify the feasibility of the process optimization scheme. [0003] At present, the commonly used composite material laminate hole-making and delamination detection technologies at home and abroad include SEM detection method, optical microscope detection method, ultrasonic C-scan detection method, industrial CT detection method, etc. These hierarchical detection methods all have their limitations. The SEM detection method and the optical microscope detection method can only detect t...

AI Technical Summary

Problems solved by technology

However, due to the low melting point of gold chloride (about 250°C), the gold chloride has melted before the matrix is ​​destroyed, which may cause changes in the dyeing area during the heating process; on the other hand, the gold content of gold chloride is relatively high (above 47.8%), and the price More expensive, resulting in higher experimental costs

[0005] In summary, commonly used non-destructive testing methods such as SEM testing, optical microscopy testing, ultrasonic C-scan testing, industrial CT testing and other non-destructive testing methods have high experimental costs and cannot obtain the delamination of each layer; while the gold chloride penetrant Although the detection method can basically meet the requirements of layered detection in the experiment, there are problems of dye flow and experimental cost.

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