Non-destructive Packaging Seal Analysis And Leak Detection Using IR Imaging

Packaging Seal quality is very important to product when it istransported, deposited and sold. We try to use non-destructive detectionto detect seal quality, so that we can control the manufactureimmediately.In this study, the effects of heat temperature on the seal qualitywere investigated. The most seal temperature was obtained fromdestructive peel strength analysis, performed using a tensile testingframe. IR imaging was obtained from non-destructive IR detectionexperiment. According to the heat transfer theory and the finit elementmethod, logical supposition was used, the boundary was simpled, the 2-Dheat transfer formula was found. Finite models (FEM) using ANSYS wereapplied to simulate the temperature field of non-destructive IR detection.The 3-DOF triangular element was used to mesh the field, the temperaturewas loaded and solution. The results of the ANSYS analyses showed themodels's temperature field images, thermal flux vecter images, thetemperature on the model bottom side, the relation of the most temperaturedifference and heating time, the relation of the most temperatuedifference and the diameter of the channels, the most detection time,etc.This study is the first time to use the IR non-destructive detectionto detect packaging seal in China. Based on these investigations, IRimaging appeared to offer a promising non-destrucitve method for theprediction of packaging seal quality and identification of channel leaks.