Leather surface ultrasonic flaw detection method

Abstract

The invention discloses an ultrasonic flaw detection method for a leather surface. The ultrasonic flaw detection method comprises the following steps: paving leather on a detection table; a plurality of vibrators arranged in the width direction of the leather form a linear ultrasonic probe, and the linear ultrasonic probe is arranged opposite to the leather; the ultrasonic probe is relatively moved in the length direction of the leather; the area of the defect existing on the leather surface is calculated on the basis of the flaw detection signal output from the ultrasonic probe. According to the ultrasonic flaw detection method disclosed by the invention, the position of the leather surface defect and the area of the leather surface defect can be simply and conveniently measured with high precision, manual visual inspection is replaced, and the leather surface defect can be better detected.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing methods, in particular to an ultrasonic testing method for leather surfaces. Background technique [0002] Leather scars are a key factor affecting the quality of finished leather. Many tiny scars are filled or covered during leather processing, but due to existing technology or materials, many hole-like scars are not tightly sealed, resulting in After friction or external force, the hole-like scars are exposed, which seriously affects the product quality. At present, the most widely used leather inspection is by naked eye observation, which is not only time-consuming and laborious, but also only the surface of the leather can be observed, and internal scars are difficult to detect. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a leather surface ultrasonic flaw detection method. [0004] To ach...

AI Technical Summary

Problems solved by technology

[0002] Leather scars are a key factor affecting the quality of finished leather. Many tiny scars are filled or covered during leather processing, but due to existing technology or materials, many hole-like scars are not tightly sealed, resulting in After friction or external force, the hole-like scars are exposed, which seriously affects the product quality

At present, most people use the naked eye to detect the leather, which is not only time-consuming and laborious, but also can only observe the surface of the leather, and it is difficult to detect the internal scars.