Nondestructive testing method of paste quality of marine constrained damping rubber plate

A technology of constrained damping and non-destructive testing, which is applied in the direction of analyzing solids using sound waves/ultrasonic waves/infrasonic waves, achieving great economic and social benefits, high reliability, and good repeatability

Inactive Publication Date: 2012-06-20
WUCHANG SHIPBUILDING GRP +1
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Problems solved by technology

[0003] The invention provides a non-destructive testing method for sticking quality of marine constrained damping rubber plates, which solves the problem that the multi-pulse echo method can only effectively detect the d

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  • Nondestructive testing method of paste quality of marine constrained damping rubber plate
  • Nondestructive testing method of paste quality of marine constrained damping rubber plate
  • Nondestructive testing method of paste quality of marine constrained damping rubber plate

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods are provided And specific operation process, but protection scope of the present invention is not limited to following embodiment.

[0019] like figure 1 , 2 As shown, the constrained metal plate 1, the bonding area 2, the damping material 3, the metal plate 4, the debonding area 5, the ultrasonic flaw detector 6, the digital oscilloscope 7, the longitudinal wave straight probe 8, and the constrained damping rubber plate bonded sample 9 , computer 10 . A D-803-Y type constrained damping rubber plate (produced by Tianjin Rubber Research Institute) with a cross-sectional size of 120×100mm is bonded to a 5.5mm thick Q235 st...

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Abstract

The invention provides a nondestructive testing method of paste quality of a marine constrained damping rubber plate, which solves the problem that only interface paste quality between a thinner steel plate and a thinner damping rubber plate can be effectively detected during back multi-layer rubber interface paste quality detection of a steel plate by adopting a multi-pulse echo method. The nondestructive testing method comprises the steps of: 1, conditioning a signal, 2, meshing, 3, collecting a detection signal, 4, collecting a contrast signal, 5, drawing an extreme envelope, and 6, judging. The nondestructive testing method, provided by the invention, fills the blank of the nondestructive testing method of paste quality of the constrained damping rubber plate and a metal base body in domestic marine industry at present, can carry out 100% of nondestructive testing as to interface debonding situation of a constrained plate, a damping material and a metal plate, and have the advantages of good repeatability, high reliability, large economic benefit and social benefit; and the detection result is not affected by experience and levels of testing staff.

Description

technical field [0001] The invention belongs to a non-destructive testing method, in particular to a non-destructive testing method for the bonding quality of a marine constrained damping rubber plate and a metal substrate, which is used for detecting the bonding quality of a marine constrained damping rubber plate. Background technique [0002] At present, during the ship outfitting process, the assembly plant will install damping rubber materials on the hull structure to reduce the vibration and noise of the structure. The bonding defect of the damping rubber material directly affects its laying quality and its use effect. In the study of "Pulse train echo analysis of multi-layer rubber debonding interface behind steel plate", based on the resonance matching theory, some researchers tried to use square wave modulation multi-pulse echo method to detect the debonding of multi-layer rubber interface behind steel plate. This method only studies the bonding structure of a thin...

Claims

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Application Information

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IPC IPC(8): G01N29/04
Inventor 林莉彭劲松马致远李喜孟徐北平
Owner WUCHANG SHIPBUILDING GRP
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