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Method using ultrasonic wave to detect bonding quality

A technology of bonding quality and detection method, which is applied in the direction of using sound wave/ultrasonic wave/infrasonic wave to analyze solids, etc. It can solve the problems of imperfect detection methods, rubber cup falling off, graphite ring falling off, etc., and achieve long life and reduce failures Incidence rate, effect of improving reliability

Inactive Publication Date: 2016-03-09
XIAN AERO ENGINE CONTROLS
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Problems solved by technology

[0002] Due to the incompleteness of the traditional detection methods for the bonding interface of rubber parts with metal skeletons, this kind of products mainly rely on random inspection and destructive inspection to ensure the quality. As a result, our company successively caused the rubber cups to fall off due to the non-compliance of the bonding quality. , mat foaming, graphite ring falling off and other major quality problems

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  • Method using ultrasonic wave to detect bonding quality
  • Method using ultrasonic wave to detect bonding quality

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Embodiment Construction

[0033] The detection of bonding quality is usually divided into two categories: one is the detection of debonding defects, and the other is the detection of bonding strength. The detection of debonding defects can be divided into air interlayer debonding and mechanical lamination debonding detection; the detection of bonding strength is divided into the detection of the cohesive strength of the cement layer and the adhesion strength of the medium interface. Different from the defect detection in general materials, the detection of bonding quality mainly focuses on the interface of the material medium, so the detection is more difficult. The general non-destructive testing methods (such as ray, eddy current, conventional, etc.) are difficult to detect and must be According to the particularity of the detection, the corresponding detection methods and technologies are studied. The detection of the bonding quality of rubber and metal must be through the study of the transmitted w...

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Abstract

The invention provides a method using ultrasonic wave to detect the bonding quality. The method comprises the following steps: (1) utilizing an ultrasonic wave characteristic scanning technology to find the characteristic waves of rubber, a bonding agent, and a metal member, carrying out ultrasonic tomography in a designated depth range through ultrasonic waves to obtain the de-bonding area or weak-bonding area in any region, automatically recognizing the de-bonding areas and weak-bonding areas by a computer, and then individually calculating the de-bonding area and weak-bonding area; (2) according to the results of characteristic wave imaging, judging the bonding quality. In the step two, simulation software is adopted to calculate the area of each defect and the elastic amplitudes of all defect areas so as to judge the relative bonding strength of each defect area. According to the provided ultrasonic detection method, computer simulation recognition and control technologies are adopted, the artificial uncertain factors in conventional sampling method are reduced, the stability of monitoring technology is improved, thus the reliability of quality of bonded products is improved, and an aviation quality acceptance standard suitable for aviation products is mapped out.

Description

technical field [0001] The invention belongs to the field of non-destructive testing, in particular to a non-destructive testing method for the bonding interface of rubber parts with metal skeletons. Background technique [0002] Due to the incompleteness of the traditional detection methods for the bonding interface of rubber parts with metal skeletons, this kind of products mainly rely on random inspection and destructive inspection to ensure the quality. As a result, our company successively caused the rubber cups to fall off due to the non-compliance of the bonding quality. , Mat foaming, graphite ring falling off and other major quality problems. Faced with the design requirements of long life and high reliability of the company's various stereotyped products, it is necessary to have a new non-destructive non-destructive testing method to 100% detect and control the bonding interface of rubber parts with metal skeletons to ensure All products meet the design requiremen...

Claims

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Application Information

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IPC IPC(8): G01N29/04
Inventor 张新菊王运平张俊杰张环陈巧军
Owner XIAN AERO ENGINE CONTROLS
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